-/* Register Transfer Language (RTL) definitions for GNU C-Compiler
- Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Register Transfer Language (RTL) definitions for GCC
+ Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_RTL_H
#define GCC_RTL_H
-struct function;
-
+#include "statistics.h"
#include "machmode.h"
+#include "input.h"
+#include "real.h"
+#include "vec.h"
+#include "fixed-value.h"
+#include "alias.h"
#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
#undef FLOAT /* Likewise. */
#define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE)
/* The cast here, saves many elsewhere. */
+/* Register Transfer Language EXPRESSIONS CODE CLASSES */
+
+enum rtx_class {
+ /* We check bit 0-1 of some rtx class codes in the predicates below. */
+
+ /* Bit 0 = comparison if 0, arithmetic is 1
+ Bit 1 = 1 if commutative. */
+ RTX_COMPARE, /* 0 */
+ RTX_COMM_COMPARE,
+ RTX_BIN_ARITH,
+ RTX_COMM_ARITH,
+
+ /* Must follow the four preceding values. */
+ RTX_UNARY, /* 4 */
+
+ RTX_EXTRA,
+ RTX_MATCH,
+ RTX_INSN,
+
+ /* Bit 0 = 1 if constant. */
+ RTX_OBJ, /* 8 */
+ RTX_CONST_OBJ,
+
+ RTX_TERNARY,
+ RTX_BITFIELD_OPS,
+ RTX_AUTOINC
+};
+
+#define RTX_OBJ_MASK (~1)
+#define RTX_OBJ_RESULT (RTX_OBJ & RTX_OBJ_MASK)
+#define RTX_COMPARE_MASK (~1)
+#define RTX_COMPARE_RESULT (RTX_COMPARE & RTX_COMPARE_MASK)
+#define RTX_ARITHMETIC_MASK (~1)
+#define RTX_ARITHMETIC_RESULT (RTX_COMM_ARITH & RTX_ARITHMETIC_MASK)
+#define RTX_BINARY_MASK (~3)
+#define RTX_BINARY_RESULT (RTX_COMPARE & RTX_BINARY_MASK)
+#define RTX_COMMUTATIVE_MASK (~2)
+#define RTX_COMMUTATIVE_RESULT (RTX_COMM_COMPARE & RTX_COMMUTATIVE_MASK)
+#define RTX_NON_COMMUTATIVE_RESULT (RTX_COMPARE & RTX_COMMUTATIVE_MASK)
+
extern const unsigned char rtx_length[NUM_RTX_CODE];
#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
extern const char * const rtx_format[NUM_RTX_CODE];
#define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)])
-extern const char rtx_class[NUM_RTX_CODE];
+extern const enum rtx_class rtx_class[NUM_RTX_CODE];
#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
+
+extern const unsigned char rtx_code_size[NUM_RTX_CODE];
+extern const unsigned char rtx_next[NUM_RTX_CODE];
\f
/* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label
relative to which the offsets are calculated, as explained in rtl.def. */
so MEMs that the same attributes share a data structure. This means
they cannot be modified in place. If any element is nonzero, it means
the value of the corresponding attribute is unknown. */
-typedef struct
+/* ALIGN and SIZE are the alignment and size of the MEM itself,
+ while EXPR can describe a larger underlying object, which might have a
+ stricter alignment; OFFSET is the offset of the MEM within that object. */
+typedef struct mem_attrs GTY(())
{
- HOST_WIDE_INT alias; /* Memory alias set. */
tree expr; /* expr corresponding to MEM. */
rtx offset; /* Offset from start of DECL, as CONST_INT. */
rtx size; /* Size in bytes, as a CONST_INT. */
+ alias_set_type alias; /* Memory alias set. */
unsigned int align; /* Alignment of MEM in bits. */
} mem_attrs;
+/* Structure used to describe the attributes of a REG in similar way as
+ mem_attrs does for MEM above. Note that the OFFSET field is calculated
+ in the same way as for mem_attrs, rather than in the same way as a
+ SUBREG_BYTE. For example, if a big-endian target stores a byte
+ object in the low part of a 4-byte register, the OFFSET field
+ will be -3 rather than 0. */
+
+typedef struct reg_attrs GTY(())
+{
+ tree decl; /* decl corresponding to REG. */
+ HOST_WIDE_INT offset; /* Offset from start of DECL. */
+} reg_attrs;
+
/* Common union for an element of an rtx. */
-typedef union rtunion_def
+union rtunion_def
{
- HOST_WIDE_INT rtwint;
- int rtint;
- unsigned int rtuint;
- const char *rtstr;
- rtx rtx;
- rtvec rtvec;
- enum machine_mode rttype;
+ int rt_int;
+ unsigned int rt_uint;
+ const char *rt_str;
+ rtx rt_rtx;
+ rtvec rt_rtvec;
+ enum machine_mode rt_type;
addr_diff_vec_flags rt_addr_diff_vec_flags;
struct cselib_val_struct *rt_cselib;
- struct bitmap_head_def *rtbit;
- tree rttree;
- struct basic_block_def *bb;
- mem_attrs *rtmem;
-} rtunion;
+ struct bitmap_head_def *rt_bit;
+ tree rt_tree;
+ struct basic_block_def *rt_bb;
+ mem_attrs *rt_mem;
+ reg_attrs *rt_reg;
+ struct constant_descriptor_rtx *rt_constant;
+};
+typedef union rtunion_def rtunion;
+
+/* This structure remembers the position of a SYMBOL_REF within an
+ object_block structure. A SYMBOL_REF only provides this information
+ if SYMBOL_REF_HAS_BLOCK_INFO_P is true. */
+struct block_symbol GTY(()) {
+ /* The usual SYMBOL_REF fields. */
+ rtunion GTY ((skip)) fld[3];
+
+ /* The block that contains this object. */
+ struct object_block *block;
+
+ /* The offset of this object from the start of its block. It is negative
+ if the symbol has not yet been assigned an offset. */
+ HOST_WIDE_INT offset;
+};
+
+DEF_VEC_P(rtx);
+DEF_VEC_ALLOC_P(rtx,heap);
+DEF_VEC_ALLOC_P(rtx,gc);
+
+/* Describes a group of objects that are to be placed together in such
+ a way that their relative positions are known. */
+struct object_block GTY(())
+{
+ /* The section in which these objects should be placed. */
+ section *sect;
+
+ /* The alignment of the first object, measured in bits. */
+ unsigned int alignment;
+
+ /* The total size of the objects, measured in bytes. */
+ HOST_WIDE_INT size;
+
+ /* The SYMBOL_REFs for each object. The vector is sorted in
+ order of increasing offset and the following conditions will
+ hold for each element X:
+
+ SYMBOL_REF_HAS_BLOCK_INFO_P (X)
+ !SYMBOL_REF_ANCHOR_P (X)
+ SYMBOL_REF_BLOCK (X) == [address of this structure]
+ SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */
+ VEC(rtx,gc) *objects;
+
+ /* All the anchor SYMBOL_REFs used to address these objects, sorted
+ in order of increasing offset, and then increasing TLS model.
+ The following conditions will hold for each element X in this vector:
+
+ SYMBOL_REF_HAS_BLOCK_INFO_P (X)
+ SYMBOL_REF_ANCHOR_P (X)
+ SYMBOL_REF_BLOCK (X) == [address of this structure]
+ SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */
+ VEC(rtx,gc) *anchors;
+};
/* RTL expression ("rtx"). */
-struct rtx_def
+struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"),
+ chain_prev ("RTX_PREV (&%h)")))
{
/* The kind of expression this is. */
ENUM_BITFIELD(rtx_code) code: 16;
/* The kind of value the expression has. */
ENUM_BITFIELD(machine_mode) mode : 8;
- /* 1 in an INSN if it can alter flow of control
- within this function.
- MEM_KEEP_ALIAS_SET_P in a MEM.
- LINK_COST_ZERO in an INSN_LIST.
- SET_IS_RETURN_P in a SET. */
+ /* 1 in a MEM if we should keep the alias set for this mem unchanged
+ when we access a component.
+ 1 in a CALL_INSN if it is a sibling call.
+ 1 in a SET that is for a return.
+ In a CODE_LABEL, part of the two-bit alternate entry field. */
unsigned int jump : 1;
- /* 1 in an INSN if it can call another function.
- LINK_COST_FREE in an INSN_LIST. */
+ /* In a CODE_LABEL, part of the two-bit alternate entry field.
+ 1 in a MEM if it cannot trap.
+ 1 in a CALL_INSN logically equivalent to
+ ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */
unsigned int call : 1;
- /* 1 in a REG if value of this expression will never change during
- the current function, even though it is not manifestly constant.
- 1 in a MEM if contents of memory are constant. This does not
- necessarily mean that the value of this expression is constant.
- 1 in a SUBREG if it is from a promoted variable that is unsigned.
+ /* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere.
+ 1 in a SUBREG if it references an unsigned object whose mode has been
+ from a promoted to a wider mode.
1 in a SYMBOL_REF if it addresses something in the per-function
constants pool.
- 1 in a CALL_INSN if it is a const call.
- 1 in a JUMP_INSN if it is a branch that should be annulled. Valid from
- reorg until end of compilation; cleared before used. */
+ 1 in a CALL_INSN logically equivalent to ECF_CONST and TREE_READONLY.
+ 1 in a NOTE, or EXPR_LIST for a const call.
+ 1 in a JUMP_INSN, CALL_INSN, or INSN of an annulling branch. */
unsigned int unchanging : 1;
- /* 1 in a MEM expression if contents of memory are volatile.
- 1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL or BARRIER
- if it is deleted.
- 1 in a REG expression if corresponds to a variable declared by the user.
+ /* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile.
+ 1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL, BARRIER, or NOTE
+ if it has been deleted.
+ 1 in a REG expression if corresponds to a variable declared by the user,
0 for an internally generated temporary.
- In a SYMBOL_REF, this flag is used for machine-specific purposes.
- In a LABEL_REF or in a REG_LABEL note, this is LABEL_REF_NONLOCAL_P. */
+ 1 in a SUBREG with a negative value.
+ 1 in a LABEL_REF, REG_LABEL_TARGET or REG_LABEL_OPERAND note for a
+ non-local label.
+ In a SYMBOL_REF, this flag is used for machine-specific purposes. */
unsigned int volatil : 1;
/* 1 in a MEM referring to a field of an aggregate.
0 if the MEM was a variable or the result of a * operator in C;
promoted mode.
1 in a CODE_LABEL if the label is used for nonlocal gotos
and must not be deleted even if its count is zero.
- 1 in a LABEL_REF if this is a reference to a label outside the
- current loop.
- 1 in an INSN, JUMP_INSN, or CALL_INSN if this insn must be scheduled
+ 1 in an INSN, JUMP_INSN or CALL_INSN if this insn must be scheduled
together with the preceding insn. Valid only within sched.
1 in an INSN, JUMP_INSN, or CALL_INSN if insn is in a delay slot and
from the target of a branch. Valid from reorg until end of compilation;
- cleared before used.
- 1 in an INSN if this insn is dead code. Valid only during
- dead-code elimination phase; cleared before use. */
+ cleared before used. */
unsigned int in_struct : 1;
- /* 1 if this rtx is used. This is used for copying shared structure.
- See `unshare_all_rtl'.
+ /* At the end of RTL generation, 1 if this rtx is used. This is used for
+ copying shared structure. See `unshare_all_rtl'.
In a REG, this is not needed for that purpose, and used instead
in `leaf_renumber_regs_insn'.
- In a SYMBOL_REF, means that emit_library_call
+ 1 in a SYMBOL_REF, means that emit_library_call
has used it as the function. */
unsigned int used : 1;
- /* Nonzero if this rtx came from procedure integration.
- In a REG, nonzero means this reg refers to the return value
- of the current function.
- 1 in a SYMBOL_REF if the symbol is weak. */
- unsigned integrated : 1;
/* 1 in an INSN or a SET if this rtx is related to the call frame,
either changing how we compute the frame address or saving and
restoring registers in the prologue and epilogue.
- 1 in a MEM if the MEM refers to a scalar, rather than a member of
- an aggregate.
- 1 in a REG if the register is a pointer.
+ 1 in a REG or MEM if it is a pointer.
1 in a SYMBOL_REF if it addresses something in the per-function
constant string pool. */
unsigned frame_related : 1;
+ /* 1 in a REG or PARALLEL that is the current function's return value.
+ 1 in a MEM if it refers to a scalar.
+ 1 in a SYMBOL_REF for a weak symbol.
+ 1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P. */
+ unsigned return_val : 1;
/* The first element of the operands of this rtx.
The number of operands and their types are controlled
by the `code' field, according to rtl.def. */
- rtunion fld[1];
+ union u {
+ rtunion fld[1];
+ HOST_WIDE_INT hwint[1];
+ struct block_symbol block_sym;
+ struct real_value rv;
+ struct fixed_value fv;
+ } GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u;
};
+/* The size in bytes of an rtx header (code, mode and flags). */
+#define RTX_HDR_SIZE offsetof (struct rtx_def, u)
+
+/* The size in bytes of an rtx with code CODE. */
+#define RTX_CODE_SIZE(CODE) rtx_code_size[CODE]
+
#define NULL_RTX (rtx) 0
+/* The "next" and "previous" RTX, relative to this one. */
+
+#define RTX_NEXT(X) (rtx_next[GET_CODE (X)] == 0 ? NULL \
+ : *(rtx *)(((char *)X) + rtx_next[GET_CODE (X)]))
+
+/* FIXME: the "NEXT_INSN (PREV_INSN (X)) == X" condition shouldn't be needed.
+ */
+#define RTX_PREV(X) ((INSN_P (X) \
+ || NOTE_P (X) \
+ || BARRIER_P (X) \
+ || LABEL_P (X)) \
+ && PREV_INSN (X) != NULL \
+ && NEXT_INSN (PREV_INSN (X)) == X \
+ ? PREV_INSN (X) : NULL)
+
/* Define macros to access the `code' field of the rtx. */
#define GET_CODE(RTX) ((enum rtx_code) (RTX)->code)
-#define PUT_CODE(RTX, CODE) ((RTX)->code = (ENUM_BITFIELD(rtx_code)) (CODE))
+#define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE))
#define GET_MODE(RTX) ((enum machine_mode) (RTX)->mode)
-#define PUT_MODE(RTX, MODE) ((RTX)->mode = (ENUM_BITFIELD(machine_mode)) (MODE))
-
-#define RTX_INTEGRATED_P(RTX) ((RTX)->integrated)
-#define RTX_UNCHANGING_P(RTX) ((RTX)->unchanging)
-#define RTX_FRAME_RELATED_P(RTX) ((RTX)->frame_related)
+#define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE))
/* RTL vector. These appear inside RTX's when there is a need
for a variable number of things. The principle use is inside
PARALLEL expressions. */
-struct rtvec_def {
+struct rtvec_def GTY(()) {
int num_elem; /* number of elements */
- rtx elem[1];
+ rtx GTY ((length ("%h.num_elem"))) elem[1];
};
#define NULL_RTVEC (rtvec) 0
#define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem)
#define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM))
-/* Predicate yielding nonzero iff X is an rtl for a register. */
+/* Predicate yielding nonzero iff X is an rtx for a register. */
#define REG_P(X) (GET_CODE (X) == REG)
+/* Predicate yielding nonzero iff X is an rtx for a memory location. */
+#define MEM_P(X) (GET_CODE (X) == MEM)
+
+/* Predicate yielding nonzero iff X is an rtx for a constant integer. */
+#define CONST_INT_P(X) (GET_CODE (X) == CONST_INT)
+
/* Predicate yielding nonzero iff X is a label insn. */
#define LABEL_P(X) (GET_CODE (X) == CODE_LABEL)
/* Predicate yielding nonzero iff X is a jump insn. */
#define JUMP_P(X) (GET_CODE (X) == JUMP_INSN)
+/* Predicate yielding nonzero iff X is a call insn. */
+#define CALL_P(X) (GET_CODE (X) == CALL_INSN)
+
+/* Predicate yielding nonzero iff X is an insn that cannot jump. */
+#define NONJUMP_INSN_P(X) (GET_CODE (X) == INSN)
+
+/* Predicate yielding nonzero iff X is a real insn. */
+#define INSN_P(X) \
+ (NONJUMP_INSN_P (X) || JUMP_P (X) || CALL_P (X))
+
/* Predicate yielding nonzero iff X is a note insn. */
#define NOTE_P(X) (GET_CODE (X) == NOTE)
(JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \
GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC))
+/* 1 if X is a unary operator. */
+
+#define UNARY_P(X) \
+ (GET_RTX_CLASS (GET_CODE (X)) == RTX_UNARY)
+
+/* 1 if X is a binary operator. */
+
+#define BINARY_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_BINARY_MASK) == RTX_BINARY_RESULT)
+
+/* 1 if X is an arithmetic operator. */
+
+#define ARITHMETIC_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_ARITHMETIC_MASK) \
+ == RTX_ARITHMETIC_RESULT)
+
+/* 1 if X is an arithmetic operator. */
+
+#define COMMUTATIVE_ARITH_P(X) \
+ (GET_RTX_CLASS (GET_CODE (X)) == RTX_COMM_ARITH)
+
+/* 1 if X is a commutative arithmetic operator or a comparison operator.
+ These two are sometimes selected together because it is possible to
+ swap the two operands. */
+
+#define SWAPPABLE_OPERANDS_P(X) \
+ ((1 << GET_RTX_CLASS (GET_CODE (X))) \
+ & ((1 << RTX_COMM_ARITH) | (1 << RTX_COMM_COMPARE) \
+ | (1 << RTX_COMPARE)))
+
+/* 1 if X is a non-commutative operator. */
+
+#define NON_COMMUTATIVE_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \
+ == RTX_NON_COMMUTATIVE_RESULT)
+
+/* 1 if X is a commutative operator on integers. */
+
+#define COMMUTATIVE_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \
+ == RTX_COMMUTATIVE_RESULT)
+
+/* 1 if X is a relational operator. */
+
+#define COMPARISON_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMPARE_MASK) == RTX_COMPARE_RESULT)
+
/* 1 if X is a constant value that is an integer. */
#define CONSTANT_P(X) \
- (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
- || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \
- || GET_CODE (X) == CONST || GET_CODE (X) == HIGH \
- || GET_CODE (X) == CONST_VECTOR \
- || GET_CODE (X) == CONSTANT_P_RTX)
+ (GET_RTX_CLASS (GET_CODE (X)) == RTX_CONST_OBJ)
+
+/* 1 if X can be used to represent an object. */
+#define OBJECT_P(X) \
+ ((GET_RTX_CLASS (GET_CODE (X)) & RTX_OBJ_MASK) == RTX_OBJ_RESULT)
/* General accessor macros for accessing the fields of an rtx. */
/* The bit with a star outside the statement expr and an & inside is
so that N can be evaluated only once. */
#define RTL_CHECK1(RTX, N, C1) __extension__ \
-(*({ rtx _rtx = (RTX); int _n = (N); \
- enum rtx_code _code = GET_CODE (_rtx); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
+ const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
__FUNCTION__); \
if (GET_RTX_FORMAT(_code)[_n] != C1) \
rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \
__FUNCTION__); \
- &_rtx->fld[_n]; }))
+ &_rtx->u.fld[_n]; }))
#define RTL_CHECK2(RTX, N, C1, C2) __extension__ \
-(*({ rtx _rtx = (RTX); int _n = (N); \
- enum rtx_code _code = GET_CODE (_rtx); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
+ const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
__FUNCTION__); \
&& GET_RTX_FORMAT(_code)[_n] != C2) \
rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \
__FUNCTION__); \
- &_rtx->fld[_n]; }))
+ &_rtx->u.fld[_n]; }))
#define RTL_CHECKC1(RTX, N, C) __extension__ \
-(*({ rtx _rtx = (RTX); int _n = (N); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
if (GET_CODE (_rtx) != (C)) \
rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
__FUNCTION__); \
- &_rtx->fld[_n]; }))
+ &_rtx->u.fld[_n]; }))
#define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \
-(*({ rtx _rtx = (RTX); int _n = (N); \
- enum rtx_code _code = GET_CODE (_rtx); \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
+ const enum rtx_code _code = GET_CODE (_rtx); \
if (_code != (C1) && _code != (C2)) \
rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \
__FUNCTION__); \
- &_rtx->fld[_n]; }))
+ &_rtx->u.fld[_n]; }))
#define RTVEC_ELT(RTVEC, I) __extension__ \
-(*({ rtvec _rtvec = (RTVEC); int _i = (I); \
+(*({ __typeof (RTVEC) const _rtvec = (RTVEC); const int _i = (I); \
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \
__FUNCTION__); \
&_rtvec->elem[_i]; }))
-extern void rtl_check_failed_bounds PARAMS ((rtx, int,
- const char *, int, const char *))
+#define XWINT(RTX, N) __extension__ \
+(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
+ const enum rtx_code _code = GET_CODE (_rtx); \
+ if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
+ rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ if (GET_RTX_FORMAT(_code)[_n] != 'w') \
+ rtl_check_failed_type1 (_rtx, _n, 'w', __FILE__, __LINE__, \
+ __FUNCTION__); \
+ &_rtx->u.hwint[_n]; }))
+
+#define XCWINT(RTX, N, C) __extension__ \
+(*({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE (_rtx) != (C)) \
+ rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
+ __FUNCTION__); \
+ &_rtx->u.hwint[N]; }))
+
+#define XCMWINT(RTX, N, C, M) __extension__ \
+(*({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) != (M)) \
+ rtl_check_failed_code_mode (_rtx, (C), (M), false, __FILE__, \
+ __LINE__, __FUNCTION__); \
+ &_rtx->u.hwint[N]; }))
+
+#define XCNMPRV(RTX, C, M) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \
+ rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \
+ __LINE__, __FUNCTION__); \
+ &_rtx->u.rv; })
+
+#define XCNMPFV(RTX, C, M) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \
+ rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \
+ __LINE__, __FUNCTION__); \
+ &_rtx->u.fv; })
+
+#define BLOCK_SYMBOL_CHECK(RTX) __extension__ \
+({ __typeof (RTX) const _symbol = (RTX); \
+ const unsigned int flags = RTL_CHECKC1 (_symbol, 1, SYMBOL_REF).rt_int; \
+ if ((flags & SYMBOL_FLAG_HAS_BLOCK_INFO) == 0) \
+ rtl_check_failed_block_symbol (__FILE__, __LINE__, \
+ __FUNCTION__); \
+ &_symbol->u.block_sym; })
+
+extern void rtl_check_failed_bounds (const_rtx, int, const char *, int,
+ const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type1 PARAMS ((rtx, int, int,
- const char *, int, const char *))
+extern void rtl_check_failed_type1 (const_rtx, int, int, const char *, int,
+ const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_type2 PARAMS ((rtx, int, int, int,
- const char *, int, const char *))
+extern void rtl_check_failed_type2 (const_rtx, int, int, int, const char *,
+ int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code1 PARAMS ((rtx, enum rtx_code,
- const char *, int, const char *))
+extern void rtl_check_failed_code1 (const_rtx, enum rtx_code, const char *,
+ int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtl_check_failed_code2 PARAMS ((rtx, enum rtx_code, enum rtx_code,
- const char *, int, const char *))
+extern void rtl_check_failed_code2 (const_rtx, enum rtx_code, enum rtx_code,
+ const char *, int, const char *)
ATTRIBUTE_NORETURN;
-extern void rtvec_check_failed_bounds PARAMS ((rtvec, int,
- const char *, int, const char *))
+extern void rtl_check_failed_code_mode (const_rtx, enum rtx_code, enum machine_mode,
+ bool, const char *, int, const char *)
+ ATTRIBUTE_NORETURN;
+extern void rtl_check_failed_block_symbol (const char *, int, const char *)
+ ATTRIBUTE_NORETURN;
+extern void rtvec_check_failed_bounds (const_rtvec, int, const char *, int,
+ const char *)
ATTRIBUTE_NORETURN;
#else /* not ENABLE_RTL_CHECKING */
-#define RTL_CHECK1(RTX, N, C1) ((RTX)->fld[N])
-#define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->fld[N])
-#define RTL_CHECKC1(RTX, N, C) ((RTX)->fld[N])
-#define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->fld[N])
+#define RTL_CHECK1(RTX, N, C1) ((RTX)->u.fld[N])
+#define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->u.fld[N])
+#define RTL_CHECKC1(RTX, N, C) ((RTX)->u.fld[N])
+#define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->u.fld[N])
#define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I])
+#define XWINT(RTX, N) ((RTX)->u.hwint[N])
+#define XCWINT(RTX, N, C) ((RTX)->u.hwint[N])
+#define XCMWINT(RTX, N, C, M) ((RTX)->u.hwint[N])
+#define XCNMWINT(RTX, N, C, M) ((RTX)->u.hwint[N])
+#define XCNMPRV(RTX, C, M) (&(RTX)->u.rv)
+#define XCNMPFV(RTX, C, M) (&(RTX)->u.fv)
+#define BLOCK_SYMBOL_CHECK(RTX) (&(RTX)->u.block_sym)
+
+#endif
+/* General accessor macros for accessing the flags of an rtx. */
+
+/* Access an individual rtx flag, with no checking of any kind. */
+#define RTX_FLAG(RTX, FLAG) ((RTX)->FLAG)
+
+#if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION >= 2007)
+#define RTL_FLAG_CHECK1(NAME, RTX, C1) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2) \
+ rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
+ && GET_CODE(_rtx) != C5) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) \
+ __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
+ && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6) \
+ rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) \
+ __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
+ && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \
+ && GET_CODE(_rtx) != C7) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+#define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) \
+ __extension__ \
+({ __typeof (RTX) const _rtx = (RTX); \
+ if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \
+ && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \
+ && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \
+ && GET_CODE(_rtx) != C7 && GET_CODE(_rtx) != C8) \
+ rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _rtx; })
+
+extern void rtl_check_failed_flag (const char *, const_rtx, const char *,
+ int, const char *)
+ ATTRIBUTE_NORETURN
+ ;
+
+#else /* not ENABLE_RTL_FLAG_CHECKING */
+
+#define RTL_FLAG_CHECK1(NAME, RTX, C1) (RTX)
+#define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) (RTX)
+#define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) (RTX)
+#define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) (RTX)
+#define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) (RTX)
+#define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) (RTX)
+#define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) (RTX)
+#define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) (RTX)
#endif
-#define XWINT(RTX, N) (RTL_CHECK1 (RTX, N, 'w').rtwint)
-#define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rtint)
-#define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rtstr)
-#define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rtx)
-#define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rtvec)
-#define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rttype)
-#define XBITMAP(RTX, N) (RTL_CHECK1 (RTX, N, 'b').rtbit)
-#define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rttree)
-#define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').bb)
-#define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rtstr)
+#define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rt_int)
+#define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rt_str)
+#define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rt_rtx)
+#define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rt_rtvec)
+#define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rt_type)
+#define XBITMAP(RTX, N) (RTL_CHECK1 (RTX, N, 'b').rt_bit)
+#define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rt_tree)
+#define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').rt_bb)
+#define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rt_str)
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
#define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N))
-/* These are like XWINT, etc. except that they expect a '0' field instead
+/* These are like XINT, etc. except that they expect a '0' field instead
of the normal type code. */
-#define X0WINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtwint)
-#define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtint)
-#define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtuint)
-#define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtstr)
-#define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtx)
-#define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtvec)
-#define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttype)
-#define X0BITMAP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtbit)
-#define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttree)
-#define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').bb)
+#define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_int)
+#define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_uint)
+#define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_str)
+#define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtx)
+#define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtvec)
+#define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_type)
+#define X0BITMAP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_bit)
+#define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_tree)
+#define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_bb)
#define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags)
#define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib)
-#define X0MEMATTR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtmem)
-
-#define XCWINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtwint)
-#define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtint)
-#define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtuint)
-#define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtstr)
-#define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtx)
-#define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtvec)
-#define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttype)
-#define XCBITMAP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtbit)
-#define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttree)
-#define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).bb)
-#define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_addr_diff_vec_flags)
+#define X0MEMATTR(RTX, N) (RTL_CHECKC1 (RTX, N, MEM).rt_mem)
+#define X0REGATTR(RTX, N) (RTL_CHECKC1 (RTX, N, REG).rt_reg)
+#define X0CONSTANT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_constant)
+
+/* Access a '0' field with any type. */
+#define X0ANY(RTX, N) RTL_CHECK1 (RTX, N, '0')
+
+#define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_int)
+#define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_uint)
+#define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_str)
+#define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtx)
+#define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtvec)
+#define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_type)
+#define XCBITMAP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_bit)
+#define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_tree)
+#define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_bb)
#define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib)
#define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M)
#define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C))
-#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rtx)
+#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rt_rtx)
\f
/* ACCESS MACROS for particular fields of insns. */
-/* Determines whether X is an insn. */
-#define INSN_P(X) (GET_RTX_CLASS (GET_CODE(X)) == 'i')
-
/* Holds a unique number for each insn.
These are not necessarily sequentially increasing. */
#define INSN_UID(INSN) XINT (INSN, 0)
#define PREV_INSN(INSN) XEXP (INSN, 1)
#define NEXT_INSN(INSN) XEXP (INSN, 2)
+#define BLOCK_FOR_INSN(INSN) XBBDEF (INSN, 3)
+#define INSN_LOCATOR(INSN) XINT (INSN, 4)
/* The body of an insn. */
-#define PATTERN(INSN) XEXP (INSN, 3)
+#define PATTERN(INSN) XEXP (INSN, 5)
/* Code number of instruction, from when it was recognized.
-1 means this instruction has not been recognized yet. */
-#define INSN_CODE(INSN) XINT (INSN, 4)
-
-/* Set up in flow.c; empty before then.
- Holds a chain of INSN_LIST rtx's whose first operands point at
- previous insns with direct data-flow connections to this one.
- That means that those insns set variables whose next use is in this insn.
- They are always in the same basic block as this insn. */
-#define LOG_LINKS(INSN) XEXP(INSN, 5)
-
-/* 1 if insn has been deleted. */
-#define INSN_DELETED_P(INSN) ((INSN)->volatil)
-
-/* 1 if insn is a call to a const or pure function. */
-#define CONST_OR_PURE_CALL_P(INSN) ((INSN)->unchanging)
-
-/* 1 if insn (assumed to be a CALL_INSN) is a sibling call. */
-#define SIBLING_CALL_P(INSN) ((INSN)->jump)
-
-/* 1 if insn is a branch that should not unconditionally execute its
- delay slots, i.e., it is an annulled branch. */
-#define INSN_ANNULLED_BRANCH_P(INSN) ((INSN)->unchanging)
-
-/* 1 if insn is a dead code. Valid only for dead-code elimination phase. */
-#define INSN_DEAD_CODE_P(INSN) ((INSN)->in_struct)
-
-/* 1 if insn is in a delay slot and is from the target of the branch. If
- the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be
+#define INSN_CODE(INSN) XINT (INSN, 6)
+
+#define RTX_FRAME_RELATED_P(RTX) \
+ (RTL_FLAG_CHECK5("RTX_FRAME_RELATED_P", (RTX), INSN, CALL_INSN, \
+ JUMP_INSN, BARRIER, SET)->frame_related)
+
+/* 1 if RTX is an insn that has been deleted. */
+#define INSN_DELETED_P(RTX) \
+ (RTL_FLAG_CHECK6("INSN_DELETED_P", (RTX), INSN, CALL_INSN, JUMP_INSN, \
+ CODE_LABEL, BARRIER, NOTE)->volatil)
+
+/* 1 if RTX is a call to a const function. Built from ECF_CONST and
+ TREE_READONLY. */
+#define RTL_CONST_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("RTL_CONST_CALL_P", (RTX), CALL_INSN)->unchanging)
+
+/* 1 if RTX is a call to a pure function. Built from ECF_PURE and
+ DECL_PURE_P. */
+#define RTL_PURE_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("RTL_PURE_CALL_P", (RTX), CALL_INSN)->return_val)
+
+/* 1 if RTX is a call to a const or pure function. */
+#define RTL_CONST_OR_PURE_CALL_P(RTX) \
+ (RTL_CONST_CALL_P(RTX) || RTL_PURE_CALL_P(RTX))
+
+/* 1 if RTX is a call to a looping const or pure function. Built from
+ ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */
+#define RTL_LOOPING_CONST_OR_PURE_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN)->call)
+
+/* 1 if RTX is a call_insn for a sibling call. */
+#define SIBLING_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1("SIBLING_CALL_P", (RTX), CALL_INSN)->jump)
+
+/* 1 if RTX is a jump_insn, call_insn, or insn that is an annulling branch. */
+#define INSN_ANNULLED_BRANCH_P(RTX) \
+ (RTL_FLAG_CHECK3("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN, CALL_INSN, INSN)->unchanging)
+
+/* 1 if RTX is an insn in a delay slot and is from the target of the branch.
+ If the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be
executed if the branch is taken. For annulled branches with this bit
clear, the insn should be executed only if the branch is not taken. */
-#define INSN_FROM_TARGET_P(INSN) ((INSN)->in_struct)
+#define INSN_FROM_TARGET_P(RTX) \
+ (RTL_FLAG_CHECK3("INSN_FROM_TARGET_P", (RTX), INSN, JUMP_INSN, CALL_INSN)->in_struct)
+/* In an ADDR_DIFF_VEC, the flags for RTX for use by branch shortening.
+ See the comments for ADDR_DIFF_VEC in rtl.def. */
#define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4)
+/* In a VALUE, the value cselib has assigned to RTX.
+ This is a "struct cselib_val_struct", see cselib.h. */
#define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0)
/* Holds a list of notes on what this insn does to various REGs.
chain pointer and the first operand is the REG being described.
The mode field of the EXPR_LIST contains not a real machine mode
but a value from enum reg_note. */
+#define REG_NOTES(INSN) XEXP(INSN, 7)
-#define REG_NOTES(INSN) XEXP(INSN, 6)
-
-/* Don't forget to change reg_note_name in rtl.c. */
enum reg_note
{
- /* The value in REG dies in this insn (i.e., it is not needed past
- this insn). If REG is set in this insn, the REG_DEAD note may,
- but need not, be omitted. */
- REG_DEAD = 1,
-
- /* The REG is autoincremented or autodecremented. */
- REG_INC,
-
- /* Describes the insn as a whole; it says that the insn sets a register
- to a constant value or to be equivalent to a memory address. If the
- register is spilled to the stack then the constant value should be
- substituted for it. The contents of the REG_EQUIV is the constant
- value or memory address, which may be different from the source of
- the SET although it has the same value. A REG_EQUIV note may also
- appear on an insn which copies a register parameter to a pseudo-register,
- if there is a memory address which could be used to hold that
- pseudo-register throughout the function. */
- REG_EQUIV,
-
- /* Like REG_EQUIV except that the destination is only momentarily equal
- to the specified rtx. Therefore, it cannot be used for substitution;
- but it can be used for cse. */
- REG_EQUAL,
-
- /* The register set in this insn held 0 before the insn. The contents of
- the note is the insn that stored the 0. If that insn is deleted or
- patched to a NOTE, the REG_WAS_0 is inoperative. The REG_WAS_0 note
- is actually an INSN_LIST, not an EXPR_LIST. */
- REG_WAS_0,
-
- /* This insn copies the return-value of a library call out of the hard reg
- for return values. This note is actually an INSN_LIST and it points to
- the first insn involved in setting up arguments for the call. flow.c
- uses this to delete the entire library call when its result is dead. */
- REG_RETVAL,
-
- /* The inverse of REG_RETVAL: it goes on the first insn of the library call
- and points at the one that has the REG_RETVAL. This note is also an
- INSN_LIST. */
- REG_LIBCALL,
-
- /* The register is always nonnegative during the containing loop. This is
- used in branches so that decrement and branch instructions terminating
- on zero can be matched. There must be an insn pattern in the md file
- named `decrement_and_branch_until_zero' or else this will never be added
- to any instructions. */
- REG_NONNEG,
-
- /* There is no conflict *after this insn* between the register in the note
- and the destination of this insn. */
- REG_NO_CONFLICT,
-
- /* Identifies a register set in this insn and never used. */
- REG_UNUSED,
-
- /* REG_CC_SETTER and REG_CC_USER link a pair of insns that set and use CC0,
- respectively. Normally, these are required to be consecutive insns, but
- we permit putting a cc0-setting insn in the delay slot of a branch as
- long as only one copy of the insn exists. In that case, these notes
- point from one to the other to allow code generation to determine what
- any require information and to properly update CC_STATUS. These notes
- are INSN_LISTs. */
- REG_CC_SETTER, REG_CC_USER,
-
- /* Points to a CODE_LABEL. Used by non-JUMP_INSNs to say that the
- CODE_LABEL contained in the REG_LABEL note is used by the insn.
- This note is an INSN_LIST. */
- REG_LABEL,
-
- /* REG_DEP_ANTI and REG_DEP_OUTPUT are used in LOG_LINKS to represent
- write-after-read and write-after-write dependencies respectively.
- Data dependencies, which are the only type of LOG_LINK created by
- flow, are represented by a 0 reg note kind. */
- REG_DEP_ANTI, REG_DEP_OUTPUT,
-
- /* REG_BR_PROB is attached to JUMP_INSNs and CALL_INSNs.
- It has an integer value. For jumps, it is the probability that this is a
- taken branch. For calls, it is the probability that this call won't
- return. */
- REG_BR_PROB,
-
- /* REG_EXEC_COUNT is attached to the first insn of each basic block, and
- the first insn after each CALL_INSN. It indicates how many times this
- block was executed. */
- REG_EXEC_COUNT,
-
- /* Attached to a call insn; indicates that the call is malloc-like and
- that the pointer returned cannot alias anything else. */
- REG_NOALIAS,
-
- /* Used to optimize rtl generated by dynamic stack allocations for targets
- where SETJMP_VIA_SAVE_AREA is true. */
- REG_SAVE_AREA,
-
- /* REG_BR_PRED is attached to JUMP_INSNs and CALL_INSNSs. It contains
- CONCAT of two integer value. First specifies the branch predictor
- that added the note, second specifies the predicted hitrate of branch
- in the same format as REG_BR_PROB note uses. */
- REG_BR_PRED,
-
- /* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex
- for DWARF to interpret what they imply. The attached rtx is used
- instead of intuition. */
- REG_FRAME_RELATED_EXPR,
-
- /* Indicates that REG holds the exception context for the function.
- This context is shared by inline functions, so the code to acquire
- the real exception context is delayed until after inlining. */
- REG_EH_CONTEXT,
-
- /* Indicates what exception region an INSN belongs in. This is used to
- indicate what region to which a call may throw. REGION 0 indicates
- that a call cannot throw at all. REGION -1 indicates that it cannot
- throw, nor will it execute a non-local goto. */
- REG_EH_REGION,
-
- /* Used by haifa-sched to save NOTE_INSN notes across scheduling. */
- REG_SAVE_NOTE,
-
- /* Indicates that this insn (which is part of the prologue) computes
- a value which might not be used later, and if so it's OK to delete
- the insn. Normally, deleting any insn in the prologue is an error.
- At present the parameter is unused and set to (const_int 0). */
- REG_MAYBE_DEAD,
-
- /* Indicates that a call does not return. */
- REG_NORETURN,
-
- /* Indicates that an indirect jump is a non-local goto instead of a
- computed goto. */
- REG_NON_LOCAL_GOTO,
-
- /* This kind of note is generated at each to `setjmp',
- and similar functions that can return twice. */
- REG_SETJMP,
-
- /* Indicate calls that always returns. */
- REG_ALWAYS_RETURN,
-
- /* Indicate that the memory load references a vtable. The expression
- is of the form (plus (symbol_ref vtable_sym) (const_int offset)). */
- REG_VTABLE_REF
+#define DEF_REG_NOTE(NAME) NAME,
+#include "reg-notes.def"
+#undef DEF_REG_NOTE
+ REG_NOTE_MAX
};
-/* The base value for branch probability notes. */
-#define REG_BR_PROB_BASE 10000
-
/* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */
#define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK))
#define PUT_REG_NOTE_KIND(LINK, KIND) \
CLOBBER expressions document the registers explicitly clobbered
by this CALL_INSN.
Pseudo registers can not be mentioned in this list. */
-#define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 7)
+#define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 8)
/* The label-number of a code-label. The assembler label
is made from `L' and the label-number printed in decimal.
Label numbers are unique in a compilation. */
-#define CODE_LABEL_NUMBER(INSN) XINT (INSN, 5)
-
-#define LINE_NUMBER NOTE
+#define CODE_LABEL_NUMBER(INSN) XINT (INSN, 6)
/* In a NOTE that is a line number, this is a string for the file name that the
line is in. We use the same field to record block numbers temporarily in
NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts
between ints and pointers if we use a different macro for the block number.)
- The NOTE_INSN_RANGE_{START,END} and NOTE_INSN_LIVE notes record their
- information as an rtx in the field. */
+ */
-#define NOTE_SOURCE_FILE(INSN) XCSTR (INSN, 3, NOTE)
-#define NOTE_BLOCK(INSN) XCTREE (INSN, 3, NOTE)
-#define NOTE_EH_HANDLER(INSN) XCINT (INSN, 3, NOTE)
-#define NOTE_RANGE_INFO(INSN) XCEXP (INSN, 3, NOTE)
-#define NOTE_LIVE_INFO(INSN) XCEXP (INSN, 3, NOTE)
-#define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 3, NOTE)
-#define NOTE_EXPECTED_VALUE(INSN) XCEXP (INSN, 3, NOTE)
+/* Opaque data. */
+#define NOTE_DATA(INSN) RTL_CHECKC1 (INSN, 4, NOTE)
+#define NOTE_DELETED_LABEL_NAME(INSN) XCSTR (INSN, 4, NOTE)
+#define SET_INSN_DELETED(INSN) set_insn_deleted (INSN);
+#define NOTE_BLOCK(INSN) XCTREE (INSN, 4, NOTE)
+#define NOTE_EH_HANDLER(INSN) XCINT (INSN, 4, NOTE)
+#define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 4, NOTE)
+#define NOTE_VAR_LOCATION(INSN) XCEXP (INSN, 4, NOTE)
/* In a NOTE that is a line number, this is the line number.
Other kinds of NOTEs are identified by negative numbers here. */
-#define NOTE_LINE_NUMBER(INSN) XCINT (INSN, 4, NOTE)
+#define NOTE_KIND(INSN) XCINT (INSN, 5, NOTE)
/* Nonzero if INSN is a note marking the beginning of a basic block. */
-#define NOTE_INSN_BASIC_BLOCK_P(INSN) \
+#define NOTE_INSN_BASIC_BLOCK_P(INSN) \
(GET_CODE (INSN) == NOTE \
- && NOTE_LINE_NUMBER (INSN) == NOTE_INSN_BASIC_BLOCK)
-
-/* Codes that appear in the NOTE_LINE_NUMBER field
- for kinds of notes that are not line numbers.
+ && NOTE_KIND (INSN) == NOTE_INSN_BASIC_BLOCK)
+
+/* Variable declaration and the location of a variable. */
+#define NOTE_VAR_LOCATION_DECL(INSN) (XCTREE (XCEXP (INSN, 4, NOTE), \
+ 0, VAR_LOCATION))
+#define NOTE_VAR_LOCATION_LOC(INSN) (XCEXP (XCEXP (INSN, 4, NOTE), \
+ 1, VAR_LOCATION))
+
+/* Initialization status of the variable in the location. Status
+ can be unknown, uninitialized or initialized. See enumeration
+ type below. */
+#define NOTE_VAR_LOCATION_STATUS(INSN) (XCINT (XCEXP (INSN, 4, NOTE), \
+ 2, VAR_LOCATION))
+
+/* Possible initialization status of a variable. When requested
+ by the user, this information is tracked and recorded in the DWARF
+ debug information, along with the variable's location. */
+enum var_init_status
+{
+ VAR_INIT_STATUS_UNKNOWN,
+ VAR_INIT_STATUS_UNINITIALIZED,
+ VAR_INIT_STATUS_INITIALIZED
+};
+/* Codes that appear in the NOTE_KIND field for kinds of notes
+ that are not line numbers. These codes are all negative.
+
Notice that we do not try to use zero here for any of
the special note codes because sometimes the source line
actually can be zero! This happens (for example) when we
are generating code for the per-translation-unit constructor
- and destructor routines for some C++ translation unit.
-
- If you should change any of the following values, or if you
- should add a new value here, don't forget to change the
- note_insn_name array in rtl.c. */
+ and destructor routines for some C++ translation unit. */
enum insn_note
{
- /* Keep all of these numbers negative. Adjust as needed. */
- NOTE_INSN_BIAS = -100,
-
- /* This note is used to get rid of an insn
- when it isn't safe to patch the insn out of the chain. */
- NOTE_INSN_DELETED,
-
- /* These are used to mark the beginning and end of a lexical block.
- See NOTE_BLOCK, identify_blocks and reorder_blocks. */
- NOTE_INSN_BLOCK_BEG,
- NOTE_INSN_BLOCK_END,
-
- /* These mark the extremes of a loop. */
- NOTE_INSN_LOOP_BEG,
- NOTE_INSN_LOOP_END,
-
- /* Generated at the place in a loop that `continue' jumps to. */
- NOTE_INSN_LOOP_CONT,
- /* Generated at the start of a duplicated exit test. */
- NOTE_INSN_LOOP_VTOP,
-
- /* Generated at the end of a conditional at the top of the loop.
- This is used to perform a lame form of loop rotation in lieu
- of actually understanding the loop structure. The note is
- discarded after rotation is complete. */
- NOTE_INSN_LOOP_END_TOP_COND,
-
- /* This kind of note is generated at the end of the function body,
- just before the return insn or return label. In an optimizing
- compilation it is deleted by the first jump optimization, after
- enabling that optimizer to determine whether control can fall
- off the end of the function body without a return statement. */
- NOTE_INSN_FUNCTION_END,
-
- /* This marks the point immediately after the last prologue insn. */
- NOTE_INSN_PROLOGUE_END,
-
- /* This marks the point immediately prior to the first epilogue insn. */
- NOTE_INSN_EPILOGUE_BEG,
-
- /* Generated in place of user-declared labels when they are deleted. */
- NOTE_INSN_DELETED_LABEL,
-
- /* This note indicates the start of the real body of the function,
- i.e. the point just after all of the parms have been moved into
- their homes, etc. */
- NOTE_INSN_FUNCTION_BEG,
-
- /* These note where exception handling regions begin and end.
- Uses NOTE_EH_HANDLER to identify the region in question. */
- NOTE_INSN_EH_REGION_BEG,
- NOTE_INSN_EH_REGION_END,
-
- /* Generated whenever a duplicate line number note is output. For example,
- one is output after the end of an inline function, in order to prevent
- the line containing the inline call from being counted twice in gcov. */
- NOTE_INSN_REPEATED_LINE_NUMBER,
-
- /* Start/end of a live range region, where pseudos allocated on the stack
- can be allocated to temporary registers. Uses NOTE_RANGE_INFO. */
- NOTE_INSN_RANGE_BEG,
- NOTE_INSN_RANGE_END,
-
- /* Record which registers are currently live. Uses NOTE_LIVE_INFO. */
- NOTE_INSN_LIVE,
-
- /* Record the struct for the following basic block. Uses NOTE_BASIC_BLOCK. */
- NOTE_INSN_BASIC_BLOCK,
-
- /* Record the expected value of a register at a location. Uses
- NOTE_EXPECTED_VALUE; stored as (eq (reg) (const_int)). */
- NOTE_INSN_EXPECTED_VALUE,
+#define DEF_INSN_NOTE(NAME) NAME,
+#include "insn-notes.def"
+#undef DEF_INSN_NOTE
NOTE_INSN_MAX
};
/* Names for NOTE insn's other than line numbers. */
-extern const char * const note_insn_name[NOTE_INSN_MAX - NOTE_INSN_BIAS];
+extern const char * const note_insn_name[NOTE_INSN_MAX];
#define GET_NOTE_INSN_NAME(NOTE_CODE) \
- (note_insn_name[(NOTE_CODE) - (int) NOTE_INSN_BIAS])
+ (note_insn_name[(NOTE_CODE)])
/* The name of a label, in case it corresponds to an explicit label
in the input source code. */
-#define LABEL_NAME(RTX) XCSTR (RTX, 6, CODE_LABEL)
+#define LABEL_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL)
/* In jump.c, each label contains a count of the number
of LABEL_REFs that point at it, so unused labels can be deleted. */
-#define LABEL_NUSES(RTX) XCINT (RTX, 3, CODE_LABEL)
+#define LABEL_NUSES(RTX) XCINT (RTX, 4, CODE_LABEL)
-/* Associate a name with a CODE_LABEL. */
-#define LABEL_ALTERNATE_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL)
+/* Labels carry a two-bit field composed of the ->jump and ->call
+ bits. This field indicates whether the label is an alternate
+ entry point, and if so, what kind. */
+enum label_kind
+{
+ LABEL_NORMAL = 0, /* ordinary label */
+ LABEL_STATIC_ENTRY, /* alternate entry point, not exported */
+ LABEL_GLOBAL_ENTRY, /* alternate entry point, exported */
+ LABEL_WEAK_ENTRY /* alternate entry point, exported as weak symbol */
+};
-/* The original regno this ADDRESSOF was built for. */
-#define ADDRESSOF_REGNO(RTX) XCUINT (RTX, 1, ADDRESSOF)
+#if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION > 2007)
+
+/* Retrieve the kind of LABEL. */
+#define LABEL_KIND(LABEL) __extension__ \
+({ __typeof (LABEL) const _label = (LABEL); \
+ if (GET_CODE (_label) != CODE_LABEL) \
+ rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ (enum label_kind) ((_label->jump << 1) | _label->call); })
+
+/* Set the kind of LABEL. */
+#define SET_LABEL_KIND(LABEL, KIND) do { \
+ __typeof (LABEL) const _label = (LABEL); \
+ const unsigned int _kind = (KIND); \
+ if (GET_CODE (_label) != CODE_LABEL) \
+ rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \
+ __FUNCTION__); \
+ _label->jump = ((_kind >> 1) & 1); \
+ _label->call = (_kind & 1); \
+} while (0)
-/* The variable in the register we took the address of. */
-#define ADDRESSOF_DECL(RTX) XCTREE (RTX, 2, ADDRESSOF)
+#else
+
+/* Retrieve the kind of LABEL. */
+#define LABEL_KIND(LABEL) \
+ ((enum label_kind) (((LABEL)->jump << 1) | (LABEL)->call))
+
+/* Set the kind of LABEL. */
+#define SET_LABEL_KIND(LABEL, KIND) do { \
+ rtx const _label = (LABEL); \
+ const unsigned int _kind = (KIND); \
+ _label->jump = ((_kind >> 1) & 1); \
+ _label->call = (_kind & 1); \
+} while (0)
+
+#endif /* rtl flag checking */
+
+#define LABEL_ALT_ENTRY_P(LABEL) (LABEL_KIND (LABEL) != LABEL_NORMAL)
/* In jump.c, each JUMP_INSN can point to a label that it can jump to,
so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can
be decremented and possibly the label can be deleted. */
-#define JUMP_LABEL(INSN) XCEXP (INSN, 7, JUMP_INSN)
+#define JUMP_LABEL(INSN) XCEXP (INSN, 8, JUMP_INSN)
-/* Once basic blocks are found in flow.c,
- each CODE_LABEL starts a chain that goes through
- all the LABEL_REFs that jump to that label.
- The chain eventually winds up at the CODE_LABEL: it is circular. */
-#define LABEL_REFS(LABEL) XCEXP (LABEL, 4, CODE_LABEL)
+/* Once basic blocks are found, each CODE_LABEL starts a chain that
+ goes through all the LABEL_REFs that jump to that label. The chain
+ eventually winds up at the CODE_LABEL: it is circular. */
+#define LABEL_REFS(LABEL) XCEXP (LABEL, 5, CODE_LABEL)
\f
-/* This is the field in the LABEL_REF through which the circular chain
- of references to a particular label is linked.
- This chain is set up in flow.c. */
-
-#define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF)
-
-/* Once basic blocks are found in flow.c,
- Each LABEL_REF points to its containing instruction with this field. */
+/* For a REG rtx, REGNO extracts the register number. REGNO can only
+ be used on RHS. Use SET_REGNO to change the value. */
+#define REGNO(RTX) (rhs_regno(RTX))
+#define SET_REGNO(RTX,N) (df_ref_change_reg_with_loc (REGNO(RTX), N, RTX), XCUINT (RTX, 0, REG) = N)
+
+/* ORIGINAL_REGNO holds the number the register originally had; for a
+ pseudo register turned into a hard reg this will hold the old pseudo
+ register number. */
+#define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1)
-#define CONTAINING_INSN(RTX) XCEXP (RTX, 2, LABEL_REF)
+/* Force the REGNO macro to only be used on the lhs. */
+static inline unsigned int
+rhs_regno (const_rtx x)
+{
+ return XCUINT (x, 0, REG);
+}
-/* For a REG rtx, REGNO extracts the register number. ORIGINAL_REGNO holds
- the number the register originally had; for a pseudo register turned into
- a hard reg this will hold the old pseudo register number. */
-#define REGNO(RTX) XCUINT (RTX, 0, REG)
-#define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1)
-/* For a REG rtx, REG_FUNCTION_VALUE_P is nonzero if the reg
- is the current function's return value. */
+/* 1 if RTX is a reg or parallel that is the current function's return
+ value. */
+#define REG_FUNCTION_VALUE_P(RTX) \
+ (RTL_FLAG_CHECK2("REG_FUNCTION_VALUE_P", (RTX), REG, PARALLEL)->return_val)
-#define REG_FUNCTION_VALUE_P(RTX) ((RTX)->integrated)
+/* 1 if RTX is a reg that corresponds to a variable declared by the user. */
+#define REG_USERVAR_P(RTX) \
+ (RTL_FLAG_CHECK1("REG_USERVAR_P", (RTX), REG)->volatil)
-/* 1 in a REG rtx if it corresponds to a variable declared by the user. */
-#define REG_USERVAR_P(RTX) ((RTX)->volatil)
+/* 1 if RTX is a reg that holds a pointer value. */
+#define REG_POINTER(RTX) \
+ (RTL_FLAG_CHECK1("REG_POINTER", (RTX), REG)->frame_related)
-/* 1 in a REG rtx if the register is a pointer. */
-#define REG_POINTER(RTX) ((RTX)->frame_related)
+/* 1 if RTX is a mem that holds a pointer value. */
+#define MEM_POINTER(RTX) \
+ (RTL_FLAG_CHECK1("MEM_POINTER", (RTX), MEM)->frame_related)
/* 1 if the given register REG corresponds to a hard register. */
#define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG)))
#define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER)
/* For a CONST_INT rtx, INTVAL extracts the integer. */
-
#define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT)
+#define UINTVAL(RTX) ((unsigned HOST_WIDE_INT) INTVAL (RTX))
/* For a CONST_DOUBLE:
- The usual two ints that hold the value.
- For a DImode, that is all there are;
- and CONST_DOUBLE_LOW is the low-order word and ..._HIGH the high-order.
- For a float, the number of ints varies,
- and CONST_DOUBLE_LOW is the one that should come first *in memory*.
- So use &CONST_DOUBLE_LOW(r) as the address of an array of ints. */
-#define CONST_DOUBLE_LOW(r) XCWINT (r, 1, CONST_DOUBLE)
-#define CONST_DOUBLE_HIGH(r) XCWINT (r, 2, CONST_DOUBLE)
-
-/* Link for chain of all CONST_DOUBLEs in use in current function. */
-#define CONST_DOUBLE_CHAIN(r) XCEXP (r, 0, CONST_DOUBLE)
+ For a VOIDmode, there are two integers CONST_DOUBLE_LOW is the
+ low-order word and ..._HIGH the high-order.
+ For a float, there is a REAL_VALUE_TYPE structure, and
+ CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */
+#define CONST_DOUBLE_LOW(r) XCMWINT (r, 0, CONST_DOUBLE, VOIDmode)
+#define CONST_DOUBLE_HIGH(r) XCMWINT (r, 1, CONST_DOUBLE, VOIDmode)
+#define CONST_DOUBLE_REAL_VALUE(r) \
+ ((const struct real_value *) XCNMPRV (r, CONST_DOUBLE, VOIDmode))
+
+#define CONST_FIXED_VALUE(r) \
+ ((const struct fixed_value *) XCNMPFV (r, CONST_FIXED, VOIDmode))
+#define CONST_FIXED_VALUE_HIGH(r) \
+ ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.high))
+#define CONST_FIXED_VALUE_LOW(r) \
+ ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.low))
/* For a CONST_VECTOR, return element #n. */
#define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR)
#define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG)
/* in rtlanal.c */
-extern unsigned int subreg_lsb PARAMS ((rtx));
-extern unsigned int subreg_regno_offset PARAMS ((unsigned int,
- enum machine_mode,
- unsigned int,
- enum machine_mode));
-extern unsigned int subreg_regno PARAMS ((rtx));
-
-/* 1 if the REG contained in SUBREG_REG is already known to be
- sign- or zero-extended from the mode of the SUBREG to the mode of
+/* Return the right cost to give to an operation
+ to make the cost of the corresponding register-to-register instruction
+ N times that of a fast register-to-register instruction. */
+#define COSTS_N_INSNS(N) ((N) * 4)
+
+/* Maximum cost of an rtl expression. This value has the special meaning
+ not to use an rtx with this cost under any circumstances. */
+#define MAX_COST INT_MAX
+
+extern void init_rtlanal (void);
+extern int rtx_cost (rtx, enum rtx_code, bool);
+extern int address_cost (rtx, enum machine_mode, bool);
+extern unsigned int subreg_lsb (const_rtx);
+extern unsigned int subreg_lsb_1 (enum machine_mode, enum machine_mode,
+ unsigned int);
+extern unsigned int subreg_regno_offset (unsigned int, enum machine_mode,
+ unsigned int, enum machine_mode);
+extern bool subreg_offset_representable_p (unsigned int, enum machine_mode,
+ unsigned int, enum machine_mode);
+extern unsigned int subreg_regno (const_rtx);
+extern int simplify_subreg_regno (unsigned int, enum machine_mode,
+ unsigned int, enum machine_mode);
+extern unsigned int subreg_nregs (const_rtx);
+extern unsigned int subreg_nregs_with_regno (unsigned int, const_rtx);
+extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, enum machine_mode);
+extern unsigned int num_sign_bit_copies (const_rtx, enum machine_mode);
+extern bool constant_pool_constant_p (rtx);
+extern bool truncated_to_mode (enum machine_mode, const_rtx);
+
+
+/* 1 if RTX is a subreg containing a reg that is already known to be
+ sign- or zero-extended from the mode of the subreg to the mode of
the reg. SUBREG_PROMOTED_UNSIGNED_P gives the signedness of the
extension.
When used as a LHS, is means that this extension must be done
when assigning to SUBREG_REG. */
-#define SUBREG_PROMOTED_VAR_P(RTX) ((RTX)->in_struct)
-#define SUBREG_PROMOTED_UNSIGNED_P(RTX) ((RTX)->unchanging)
+#define SUBREG_PROMOTED_VAR_P(RTX) \
+ (RTL_FLAG_CHECK1("SUBREG_PROMOTED", (RTX), SUBREG)->in_struct)
+
+#define SUBREG_PROMOTED_UNSIGNED_SET(RTX, VAL) \
+do { \
+ rtx const _rtx = RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_SET", (RTX), SUBREG); \
+ if ((VAL) < 0) \
+ _rtx->volatil = 1; \
+ else { \
+ _rtx->volatil = 0; \
+ _rtx->unchanging = (VAL); \
+ } \
+} while (0)
+#define SUBREG_PROMOTED_UNSIGNED_P(RTX) \
+ ((RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_P", (RTX), SUBREG)->volatil) \
+ ? -1 : (RTX)->unchanging)
/* Access various components of an ASM_OPERANDS rtx. */
XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
#define ASM_OPERANDS_INPUT_MODE(RTX, N) \
GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
-#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
-#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
+#define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 5, ASM_OPERANDS)
+#define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT)
-/* For a MEM RTX, 1 if we should keep the alias set for this mem
+/* 1 if RTX is a mem that is statically allocated in read-only memory. */
+#define MEM_READONLY_P(RTX) \
+ (RTL_FLAG_CHECK1("MEM_READONLY_P", (RTX), MEM)->unchanging)
+
+/* 1 if RTX is a mem and we should keep the alias set for this mem
unchanged when we access a component. Set to 1, or example, when we
are already in a non-addressable component of an aggregate. */
-#define MEM_KEEP_ALIAS_SET_P(RTX) ((RTX)->jump)
+#define MEM_KEEP_ALIAS_SET_P(RTX) \
+ (RTL_FLAG_CHECK1("MEM_KEEP_ALIAS_SET_P", (RTX), MEM)->jump)
-/* For a MEM rtx, 1 if it's a volatile reference.
- Also in an ASM_OPERANDS rtx. */
-#define MEM_VOLATILE_P(RTX) ((RTX)->volatil)
+/* 1 if RTX is a mem or asm_operand for a volatile reference. */
+#define MEM_VOLATILE_P(RTX) \
+ (RTL_FLAG_CHECK3("MEM_VOLATILE_P", (RTX), MEM, ASM_OPERANDS, \
+ ASM_INPUT)->volatil)
-/* For a MEM rtx, 1 if it refers to an aggregate, either to the
- aggregate itself of to a field of the aggregate. If zero, RTX may
+/* 1 if RTX is a mem that refers to an aggregate, either to the
+ aggregate itself or to a field of the aggregate. If zero, RTX may
or may not be such a reference. */
-#define MEM_IN_STRUCT_P(RTX) ((RTX)->in_struct)
+#define MEM_IN_STRUCT_P(RTX) \
+ (RTL_FLAG_CHECK1("MEM_IN_STRUCT_P", (RTX), MEM)->in_struct)
-/* For a MEM rtx, 1 if it refers to a scalar. If zero, RTX may or may
+/* 1 if RTX is a MEM that refers to a scalar. If zero, RTX may or may
not refer to a scalar. */
-#define MEM_SCALAR_P(RTX) ((RTX)->frame_related)
+#define MEM_SCALAR_P(RTX) \
+ (RTL_FLAG_CHECK1("MEM_SCALAR_P", (RTX), MEM)->return_val)
+
+/* 1 if RTX is a mem that cannot trap. */
+#define MEM_NOTRAP_P(RTX) \
+ (RTL_FLAG_CHECK1("MEM_NOTRAP_P", (RTX), MEM)->call)
-/* If VAL is non-zero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in
+/* If VAL is nonzero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in
RTX. Otherwise, vice versa. Use this macro only when you are
*sure* that you know that the MEM is in a structure, or is a
scalar. VAL is evaluated only once. */
in the block and provide defaults if none specified. */
#define MEM_ATTRS(RTX) X0MEMATTR (RTX, 1)
+/* The register attribute block. We provide access macros for each value
+ in the block and provide defaults if none specified. */
+#define REG_ATTRS(RTX) X0REGATTR (RTX, 2)
+
/* For a MEM rtx, the alias set. If 0, this MEM is not in any alias
set, and may alias anything. Otherwise, the MEM can only alias
- MEMs in the same alias set. This value is set in a
+ MEMs in a conflicting alias set. This value is set in a
language-dependent manner in the front-end, and should not be
- altered in the back-end. These set numbers are tested for zero,
- and compared for equality; they have no other significance. In
- some front-ends, these numbers may correspond in some way to types,
- or other language-level entities, but they need not, and the
- back-end makes no such assumptions. */
+ altered in the back-end. These set numbers are tested with
+ alias_sets_conflict_p. */
#define MEM_ALIAS_SET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->alias)
/* For a MEM rtx, the decl it is known to refer to, if it is known to
: (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode \
? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT))
+/* For a REG rtx, the decl it is known to refer to, if it is known to
+ refer to part of a DECL. */
+#define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl)
+
+/* For a REG rtx, the offset from the start of REG_EXPR, if known, as an
+ HOST_WIDE_INT. */
+#define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset)
+
/* Copy the attributes that apply to memory locations from RHS to LHS. */
#define MEM_COPY_ATTRIBUTES(LHS, RHS) \
(MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \
MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \
MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS), \
- RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS), \
+ MEM_NOTRAP_P (LHS) = MEM_NOTRAP_P (RHS), \
+ MEM_READONLY_P (LHS) = MEM_READONLY_P (RHS), \
MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \
+ MEM_POINTER (LHS) = MEM_POINTER (RHS), \
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
-/* For a LABEL_REF, 1 means that this reference is to a label outside the
- loop containing the reference. */
-#define LABEL_OUTSIDE_LOOP_P(RTX) ((RTX)->in_struct)
-
-/* For a LABEL_REF, 1 means it is for a nonlocal label. */
-/* Likewise in an EXPR_LIST for a REG_LABEL note. */
-#define LABEL_REF_NONLOCAL_P(RTX) ((RTX)->volatil)
+/* 1 if RTX is a label_ref for a nonlocal label. */
+/* Likewise in an expr_list for a REG_LABEL_OPERAND or
+ REG_LABEL_TARGET note. */
+#define LABEL_REF_NONLOCAL_P(RTX) \
+ (RTL_FLAG_CHECK1("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF)->volatil)
-/* For a CODE_LABEL, 1 means always consider this label to be needed. */
-#define LABEL_PRESERVE_P(RTX) ((RTX)->in_struct)
+/* 1 if RTX is a code_label that should always be considered to be needed. */
+#define LABEL_PRESERVE_P(RTX) \
+ (RTL_FLAG_CHECK2("LABEL_PRESERVE_P", (RTX), CODE_LABEL, NOTE)->in_struct)
-/* For a REG, 1 means the register is used only in an exit test of a loop. */
-#define REG_LOOP_TEST_P(RTX) ((RTX)->in_struct)
-
-/* During sched, for an insn, 1 means that the insn must be scheduled together
+/* During sched, 1 if RTX is an insn that must be scheduled together
with the preceding insn. */
-#define SCHED_GROUP_P(INSN) ((INSN)->in_struct)
-
-/* During sched, for the LOG_LINKS of an insn, these cache the adjusted
- cost of the dependence link. The cost of executing an instruction
- may vary based on how the results are used. LINK_COST_ZERO is 1 when
- the cost through the link varies and is unchanged (i.e., the link has
- zero additional cost). LINK_COST_FREE is 1 when the cost through the
- link is zero (i.e., the link makes the cost free). In other cases,
- the adjustment to the cost is recomputed each time it is needed. */
-#define LINK_COST_ZERO(X) ((X)->jump)
-#define LINK_COST_FREE(X) ((X)->call)
+#define SCHED_GROUP_P(RTX) \
+ (RTL_FLAG_CHECK3("SCHED_GROUP_P", (RTX), INSN, JUMP_INSN, CALL_INSN \
+ )->in_struct)
/* For a SET rtx, SET_DEST is the place that is set
and SET_SRC is the value it is set to. */
#define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER)
#define SET_SRC(RTX) XCEXP(RTX, 1, SET)
-#define SET_IS_RETURN_P(RTX) ((RTX)->jump)
+#define SET_IS_RETURN_P(RTX) \
+ (RTL_FLAG_CHECK1("SET_IS_RETURN_P", (RTX), SET)->jump)
/* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */
#define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF)
#define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC)
#define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC)
-/* 1 in a SYMBOL_REF if it addresses this function's constants pool. */
-#define CONSTANT_POOL_ADDRESS_P(RTX) ((RTX)->unchanging)
-
-/* 1 in a SYMBOL_REF if it addresses this function's string constant pool. */
-#define STRING_POOL_ADDRESS_P(RTX) ((RTX)->frame_related)
-
-/* Flag in a SYMBOL_REF for machine-specific purposes. */
-#define SYMBOL_REF_FLAG(RTX) ((RTX)->volatil)
+/* 1 if RTX is a symbol_ref that addresses this function's rtl
+ constants pool. */
+#define CONSTANT_POOL_ADDRESS_P(RTX) \
+ (RTL_FLAG_CHECK1("CONSTANT_POOL_ADDRESS_P", (RTX), SYMBOL_REF)->unchanging)
+
+/* 1 if RTX is a symbol_ref that addresses a value in the file's
+ tree constant pool. This information is private to varasm.c. */
+#define TREE_CONSTANT_POOL_ADDRESS_P(RTX) \
+ (RTL_FLAG_CHECK1("TREE_CONSTANT_POOL_ADDRESS_P", \
+ (RTX), SYMBOL_REF)->frame_related)
+
+/* Used if RTX is a symbol_ref, for machine-specific purposes. */
+#define SYMBOL_REF_FLAG(RTX) \
+ (RTL_FLAG_CHECK1("SYMBOL_REF_FLAG", (RTX), SYMBOL_REF)->volatil)
+
+/* 1 if RTX is a symbol_ref that has been the library function in
+ emit_library_call. */
+#define SYMBOL_REF_USED(RTX) \
+ (RTL_FLAG_CHECK1("SYMBOL_REF_USED", (RTX), SYMBOL_REF)->used)
+
+/* 1 if RTX is a symbol_ref for a weak symbol. */
+#define SYMBOL_REF_WEAK(RTX) \
+ (RTL_FLAG_CHECK1("SYMBOL_REF_WEAK", (RTX), SYMBOL_REF)->return_val)
+
+/* A pointer attached to the SYMBOL_REF; either SYMBOL_REF_DECL or
+ SYMBOL_REF_CONSTANT. */
+#define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 2)
+
+/* Set RTX's SYMBOL_REF_DECL to DECL. RTX must not be a constant
+ pool symbol. */
+#define SET_SYMBOL_REF_DECL(RTX, DECL) \
+ (gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 2) = (DECL))
+
+/* The tree (decl or constant) associated with the symbol, or null. */
+#define SYMBOL_REF_DECL(RTX) \
+ (CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 2))
+
+/* Set RTX's SYMBOL_REF_CONSTANT to C. RTX must be a constant pool symbol. */
+#define SET_SYMBOL_REF_CONSTANT(RTX, C) \
+ (gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 2) = (C))
+
+/* The rtx constant pool entry for a symbol, or null. */
+#define SYMBOL_REF_CONSTANT(RTX) \
+ (CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 2) : NULL)
+
+/* A set of flags on a symbol_ref that are, in some respects, redundant with
+ information derivable from the tree decl associated with this symbol.
+ Except that we build a *lot* of SYMBOL_REFs that aren't associated with a
+ decl. In some cases this is a bug. But beyond that, it's nice to cache
+ this information to avoid recomputing it. Finally, this allows space for
+ the target to store more than one bit of information, as with
+ SYMBOL_REF_FLAG. */
+#define SYMBOL_REF_FLAGS(RTX) X0INT ((RTX), 1)
+
+/* These flags are common enough to be defined for all targets. They
+ are computed by the default version of targetm.encode_section_info. */
+
+/* Set if this symbol is a function. */
+#define SYMBOL_FLAG_FUNCTION (1 << 0)
+#define SYMBOL_REF_FUNCTION_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_FUNCTION) != 0)
+/* Set if targetm.binds_local_p is true. */
+#define SYMBOL_FLAG_LOCAL (1 << 1)
+#define SYMBOL_REF_LOCAL_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_LOCAL) != 0)
+/* Set if targetm.in_small_data_p is true. */
+#define SYMBOL_FLAG_SMALL (1 << 2)
+#define SYMBOL_REF_SMALL_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_SMALL) != 0)
+/* The three-bit field at [5:3] is true for TLS variables; use
+ SYMBOL_REF_TLS_MODEL to extract the field as an enum tls_model. */
+#define SYMBOL_FLAG_TLS_SHIFT 3
+#define SYMBOL_REF_TLS_MODEL(RTX) \
+ ((enum tls_model) ((SYMBOL_REF_FLAGS (RTX) >> SYMBOL_FLAG_TLS_SHIFT) & 7))
+/* Set if this symbol is not defined in this translation unit. */
+#define SYMBOL_FLAG_EXTERNAL (1 << 6)
+#define SYMBOL_REF_EXTERNAL_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_EXTERNAL) != 0)
+/* Set if this symbol has a block_symbol structure associated with it. */
+#define SYMBOL_FLAG_HAS_BLOCK_INFO (1 << 7)
+#define SYMBOL_REF_HAS_BLOCK_INFO_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_HAS_BLOCK_INFO) != 0)
+/* Set if this symbol is a section anchor. SYMBOL_REF_ANCHOR_P implies
+ SYMBOL_REF_HAS_BLOCK_INFO_P. */
+#define SYMBOL_FLAG_ANCHOR (1 << 8)
+#define SYMBOL_REF_ANCHOR_P(RTX) \
+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_ANCHOR) != 0)
+
+/* Subsequent bits are available for the target to use. */
+#define SYMBOL_FLAG_MACH_DEP_SHIFT 9
+#define SYMBOL_FLAG_MACH_DEP (1 << SYMBOL_FLAG_MACH_DEP_SHIFT)
+
+/* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the object_block
+ structure to which the symbol belongs, or NULL if it has not been
+ assigned a block. */
+#define SYMBOL_REF_BLOCK(RTX) (BLOCK_SYMBOL_CHECK (RTX)->block)
+
+/* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the offset of RTX from
+ the first object in SYMBOL_REF_BLOCK (RTX). The value is negative if
+ RTX has not yet been assigned to a block, or it has not been given an
+ offset within that block. */
+#define SYMBOL_REF_BLOCK_OFFSET(RTX) (BLOCK_SYMBOL_CHECK (RTX)->offset)
-/* 1 means a SYMBOL_REF has been the library function in emit_library_call. */
-#define SYMBOL_REF_USED(RTX) ((RTX)->used)
+/* Indicate whether the machine has any sort of auto increment addressing.
+ If not, we can avoid checking for REG_INC notes. */
-/* 1 means a SYMBOL_REF is weak. */
-#define SYMBOL_REF_WEAK(RTX) ((RTX)->integrated)
+#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) \
+ || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT) \
+ || defined (HAVE_PRE_MODIFY_DISP) || defined (HAVE_PRE_MODIFY_DISP) \
+ || defined (HAVE_PRE_MODIFY_REG) || defined (HAVE_POST_MODIFY_REG))
+#define AUTO_INC_DEC
+#endif
/* Define a macro to look for REG_INC notes,
but save time on machines where they never exist. */
-/* Don't continue this line--convex cc version 4.1 would lose. */
-#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
+#ifdef AUTO_INC_DEC
#define FIND_REG_INC_NOTE(INSN, REG) \
((REG) != NULL_RTX && REG_P ((REG)) \
? find_regno_note ((INSN), REG_INC, REGNO (REG)) \
#define FIND_REG_INC_NOTE(INSN, REG) 0
#endif
-/* Indicate whether the machine has any sort of auto increment addressing.
- If not, we can avoid checking for REG_INC notes. */
-
-/* Don't continue this line--convex cc version 4.1 would lose. */
-#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
-#define AUTO_INC_DEC
-#endif
-
#ifndef HAVE_PRE_INCREMENT
#define HAVE_PRE_INCREMENT 0
#endif
#ifndef USE_STORE_PRE_DECREMENT
#define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT
#endif
-
-
-/* Accessors for RANGE_INFO. */
-/* For RANGE_{START,END} notes return the RANGE_START note. */
-#define RANGE_INFO_NOTE_START(INSN) XCEXP (INSN, 0, RANGE_INFO)
-
-/* For RANGE_{START,END} notes return the RANGE_START note. */
-#define RANGE_INFO_NOTE_END(INSN) XCEXP (INSN, 1, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, return the vector containing the registers used
- in the range. */
-#define RANGE_INFO_REGS(INSN) XCVEC (INSN, 2, RANGE_INFO)
-#define RANGE_INFO_REGS_REG(INSN, N) XCVECEXP (INSN, 2, N, RANGE_INFO)
-#define RANGE_INFO_NUM_REGS(INSN) XCVECLEN (INSN, 2, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the number of calls within the range. */
-#define RANGE_INFO_NCALLS(INSN) XCINT (INSN, 3, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the number of insns within the range. */
-#define RANGE_INFO_NINSNS(INSN) XCINT (INSN, 4, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, a unique # to identify this range. */
-#define RANGE_INFO_UNIQUE(INSN) XCINT (INSN, 5, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the basic block # the range starts with. */
-#define RANGE_INFO_BB_START(INSN) XCINT (INSN, 6, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the basic block # the range ends with. */
-#define RANGE_INFO_BB_END(INSN) XCINT (INSN, 7, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the loop depth the range is in. */
-#define RANGE_INFO_LOOP_DEPTH(INSN) XCINT (INSN, 8, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the bitmap of live registers at the start
- of the range. */
-#define RANGE_INFO_LIVE_START(INSN) XCBITMAP (INSN, 9, RANGE_INFO)
-
-/* For RANGE_{START,END} notes, the bitmap of live registers at the end
- of the range. */
-#define RANGE_INFO_LIVE_END(INSN) XCBITMAP (INSN, 10, RANGE_INFO)
-
-/* For RANGE_START notes, the marker # of the start of the range. */
-#define RANGE_INFO_MARKER_START(INSN) XCINT (INSN, 11, RANGE_INFO)
-
-/* For RANGE_START notes, the marker # of the end of the range. */
-#define RANGE_INFO_MARKER_END(INSN) XCINT (INSN, 12, RANGE_INFO)
-
-/* Original pseudo register # for a live range note. */
-#define RANGE_REG_PSEUDO(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 0, REG)
-
-/* Pseudo register # original register is copied into or -1. */
-#define RANGE_REG_COPY(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 1, REG)
-
-/* How many times a register in a live range note was referenced. */
-#define RANGE_REG_REFS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 2)
-
-/* How many times a register in a live range note was set. */
-#define RANGE_REG_SETS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 3)
-
-/* How many times a register in a live range note died. */
-#define RANGE_REG_DEATHS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 4)
-
-/* Whether the original value is needed to be copied into the range register at
- the start of the range. */
-#define RANGE_REG_COPY_FLAGS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 5)
-
-/* # of insns the register copy is live over. */
-#define RANGE_REG_LIVE_LENGTH(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 6)
-
-/* # of calls the register copy is live over. */
-#define RANGE_REG_N_CALLS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 7)
-
-/* DECL_NODE pointer of the declaration if the register is a user defined
- variable. */
-#define RANGE_REG_SYMBOL_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 8)
-
-/* BLOCK_NODE pointer to the block the variable is declared in if the
- register is a user defined variable. */
-#define RANGE_REG_BLOCK_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 9)
-
-/* EXPR_LIST of the distinct ranges a variable is in. */
-#define RANGE_VAR_LIST(INSN) (XEXP (INSN, 0))
-
-/* Block a variable is declared in. */
-#define RANGE_VAR_BLOCK(INSN) (XTREE (INSN, 1))
-
-/* # of distinct ranges a variable is in. */
-#define RANGE_VAR_NUM(INSN) (XINT (INSN, 2))
-
-/* For a NOTE_INSN_LIVE note, the registers which are currently live. */
-#define RANGE_LIVE_BITMAP(INSN) (XBITMAP (INSN, 0))
-
-/* For a NOTE_INSN_LIVE note, the original basic block number. */
-#define RANGE_LIVE_ORIG_BLOCK(INSN) (XINT (INSN, 1))
-
-/* Determine if the insn is a PHI node. */
-#define PHI_NODE_P(X) \
- ((X) && GET_CODE (X) == INSN \
- && GET_CODE (PATTERN (X)) == SET \
- && GET_CODE (SET_SRC (PATTERN (X))) == PHI)
\f
-/* Nonzero if we need to distinguish between the return value of this function
- and the return value of a function called by this function. This helps
- integrate.c.
- This is 1 until after the rtl generation pass. */
-extern int rtx_equal_function_value_matters;
-
/* Nonzero when we are generating CONCATs. */
extern int generating_concat_p;
+/* Nonzero when we are expanding trees to RTL. */
+extern int currently_expanding_to_rtl;
+
/* Generally useful functions. */
/* In expmed.c */
-extern int ceil_log2 PARAMS ((unsigned HOST_WIDE_INT));
-
-#define plus_constant(X, C) plus_constant_wide ((X), (HOST_WIDE_INT) (C))
-
-/* In builtins.c */
-extern rtx expand_builtin_expect_jump PARAMS ((tree, rtx, rtx));
+extern int ceil_log2 (unsigned HOST_WIDE_INT);
/* In explow.c */
-extern void set_stack_check_libfunc PARAMS ((rtx));
-extern HOST_WIDE_INT trunc_int_for_mode PARAMS ((HOST_WIDE_INT,
- enum machine_mode));
-extern rtx plus_constant_wide PARAMS ((rtx, HOST_WIDE_INT));
-extern rtx plus_constant_for_output_wide PARAMS ((rtx, HOST_WIDE_INT));
-extern void optimize_save_area_alloca PARAMS ((rtx));
+extern void set_stack_check_libfunc (rtx);
+extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode);
+extern rtx plus_constant (rtx, HOST_WIDE_INT);
/* In emit-rtl.c */
-extern rtx gen_rtx PARAMS ((enum rtx_code,
- enum machine_mode, ...));
-extern rtvec gen_rtvec PARAMS ((int, ...));
-extern rtx copy_insn_1 PARAMS ((rtx));
-extern rtx copy_insn PARAMS ((rtx));
-extern rtx gen_int_mode PARAMS ((HOST_WIDE_INT,
- enum machine_mode));
+extern rtx gen_blockage (void);
+extern rtvec gen_rtvec (int, ...);
+extern rtx copy_insn_1 (rtx);
+extern rtx copy_insn (rtx);
+extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
+extern rtx emit_copy_of_insn_after (rtx, rtx);
+extern void set_reg_attrs_from_value (rtx, rtx);
+extern void set_mem_attrs_from_reg (rtx, rtx);
+extern void set_reg_attrs_for_parm (rtx, rtx);
+extern void adjust_reg_mode (rtx, enum machine_mode);
+extern int mem_expr_equal_p (const_tree, const_tree);
/* In rtl.c */
-extern rtx rtx_alloc PARAMS ((RTX_CODE));
-extern rtvec rtvec_alloc PARAMS ((int));
-extern rtx copy_rtx PARAMS ((rtx));
+extern rtx rtx_alloc_stat (RTX_CODE MEM_STAT_DECL);
+#define rtx_alloc(c) rtx_alloc_stat (c MEM_STAT_INFO)
+
+extern rtvec rtvec_alloc (int);
+extern bool shared_const_p (const_rtx);
+extern rtx copy_rtx (rtx);
+extern void dump_rtx_statistics (void);
/* In emit-rtl.c */
-extern rtx copy_rtx_if_shared PARAMS ((rtx));
+extern rtx copy_rtx_if_shared (rtx);
/* In rtl.c */
-extern rtx copy_most_rtx PARAMS ((rtx, rtx));
-extern rtx shallow_copy_rtx PARAMS ((rtx));
-extern int rtx_equal_p PARAMS ((rtx, rtx));
+extern unsigned int rtx_size (const_rtx);
+extern rtx shallow_copy_rtx_stat (const_rtx MEM_STAT_DECL);
+#define shallow_copy_rtx(a) shallow_copy_rtx_stat (a MEM_STAT_INFO)
+extern int rtx_equal_p (const_rtx, const_rtx);
/* In emit-rtl.c */
-extern rtvec gen_rtvec_v PARAMS ((int, rtx *));
-extern rtx gen_reg_rtx PARAMS ((enum machine_mode));
-extern rtx gen_label_rtx PARAMS ((void));
-extern int subreg_hard_regno PARAMS ((rtx, int));
-extern rtx gen_lowpart_common PARAMS ((enum machine_mode, rtx));
-extern rtx gen_lowpart PARAMS ((enum machine_mode, rtx));
+extern rtvec gen_rtvec_v (int, rtx *);
+extern rtx gen_reg_rtx (enum machine_mode);
+extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int);
+extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int);
+extern rtx gen_reg_rtx_and_attrs (rtx);
+extern rtx gen_label_rtx (void);
+extern rtx gen_lowpart_common (enum machine_mode, rtx);
/* In cse.c */
-extern rtx gen_lowpart_if_possible PARAMS ((enum machine_mode, rtx));
+extern rtx gen_lowpart_if_possible (enum machine_mode, rtx);
/* In emit-rtl.c */
-extern rtx gen_highpart PARAMS ((enum machine_mode, rtx));
-extern rtx gen_highpart_mode PARAMS ((enum machine_mode,
- enum machine_mode, rtx));
-extern rtx gen_realpart PARAMS ((enum machine_mode, rtx));
-extern rtx gen_imagpart PARAMS ((enum machine_mode, rtx));
-extern rtx operand_subword PARAMS ((rtx, unsigned int, int,
- enum machine_mode));
-extern rtx constant_subword PARAMS ((rtx, int,
- enum machine_mode));
+extern rtx gen_highpart (enum machine_mode, rtx);
+extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx);
+extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode);
/* In emit-rtl.c */
-extern rtx operand_subword_force PARAMS ((rtx, unsigned int,
- enum machine_mode));
-extern int subreg_lowpart_p PARAMS ((rtx));
-extern unsigned int subreg_lowpart_offset PARAMS ((enum machine_mode,
- enum machine_mode));
-extern unsigned int subreg_highpart_offset PARAMS ((enum machine_mode,
- enum machine_mode));
-extern rtx make_safe_from PARAMS ((rtx, rtx));
-extern rtx convert_memory_address PARAMS ((enum machine_mode, rtx));
-extern rtx get_insns PARAMS ((void));
-extern const char *get_insn_name PARAMS ((int));
-extern rtx get_last_insn PARAMS ((void));
-extern rtx get_last_insn_anywhere PARAMS ((void));
-extern void start_sequence PARAMS ((void));
-extern void push_to_sequence PARAMS ((rtx));
-extern void end_sequence PARAMS ((void));
-extern void push_to_full_sequence PARAMS ((rtx, rtx));
-extern void end_full_sequence PARAMS ((rtx*, rtx*));
-extern rtx gen_sequence PARAMS ((void));
+extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode);
+extern int subreg_lowpart_p (const_rtx);
+extern unsigned int subreg_lowpart_offset (enum machine_mode,
+ enum machine_mode);
+extern unsigned int subreg_highpart_offset (enum machine_mode,
+ enum machine_mode);
+extern int byte_lowpart_offset (enum machine_mode, enum machine_mode);
+extern rtx make_safe_from (rtx, rtx);
+extern rtx convert_memory_address (enum machine_mode, rtx);
+extern rtx get_insns (void);
+extern const char *get_insn_name (int);
+extern rtx get_last_insn (void);
+extern rtx get_last_insn_anywhere (void);
+extern rtx get_first_nonnote_insn (void);
+extern rtx get_last_nonnote_insn (void);
+extern void start_sequence (void);
+extern void push_to_sequence (rtx);
+extern void push_to_sequence2 (rtx, rtx);
+extern void end_sequence (void);
+extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT,
+ enum machine_mode);
+
+/* In loop-iv.c */
+
+extern rtx lowpart_subreg (enum machine_mode, rtx, enum machine_mode);
/* In varasm.c */
-extern rtx immed_double_const PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
-extern rtx mem_for_const_double PARAMS ((rtx));
-extern rtx force_const_mem PARAMS ((enum machine_mode, rtx));
+extern rtx force_const_mem (enum machine_mode, rtx);
/* In varasm.c */
-extern rtx get_pool_constant PARAMS ((rtx));
-extern rtx get_pool_constant_mark PARAMS ((rtx, bool *));
-extern enum machine_mode get_pool_mode PARAMS ((rtx));
-extern rtx get_pool_constant_for_function PARAMS ((struct function *, rtx));
-extern enum machine_mode get_pool_mode_for_function PARAMS ((struct function *, rtx));
-extern int get_pool_offset PARAMS ((rtx));
-extern rtx simplify_subtraction PARAMS ((rtx));
+
+struct function;
+extern rtx get_pool_constant (rtx);
+extern rtx get_pool_constant_mark (rtx, bool *);
+extern enum machine_mode get_pool_mode (const_rtx);
+extern rtx simplify_subtraction (rtx);
/* In function.c */
-extern rtx assign_stack_local PARAMS ((enum machine_mode,
- HOST_WIDE_INT, int));
-extern rtx assign_stack_temp PARAMS ((enum machine_mode,
- HOST_WIDE_INT, int));
-extern rtx assign_stack_temp_for_type PARAMS ((enum machine_mode,
- HOST_WIDE_INT, int, tree));
-extern rtx assign_temp PARAMS ((tree, int, int, int));
+extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int);
+extern rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int, bool);
+extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT, int);
+extern rtx assign_stack_temp_for_type (enum machine_mode,
+ HOST_WIDE_INT, int, tree);
+extern rtx assign_temp (tree, int, int, int);
+
/* In emit-rtl.c */
-extern rtx emit_insn_before PARAMS ((rtx, rtx));
-extern rtx emit_jump_insn_before PARAMS ((rtx, rtx));
-extern rtx emit_call_insn_before PARAMS ((rtx, rtx));
-extern rtx emit_barrier_before PARAMS ((rtx));
-extern rtx emit_label_before PARAMS ((rtx, rtx));
-extern rtx emit_note_before PARAMS ((int, rtx));
-extern rtx emit_insn_after PARAMS ((rtx, rtx));
-extern rtx emit_jump_insn_after PARAMS ((rtx, rtx));
-extern rtx emit_barrier_after PARAMS ((rtx));
-extern rtx emit_label_after PARAMS ((rtx, rtx));
-extern rtx emit_note_after PARAMS ((int, rtx));
-extern rtx emit_line_note_after PARAMS ((const char *, int, rtx));
-extern rtx emit_insn PARAMS ((rtx));
-extern rtx emit_insns PARAMS ((rtx));
-extern rtx emit_insns_before PARAMS ((rtx, rtx));
-extern rtx emit_insns_after PARAMS ((rtx, rtx));
-extern rtx emit_jump_insn PARAMS ((rtx));
-extern rtx emit_call_insn PARAMS ((rtx));
-extern rtx emit_label PARAMS ((rtx));
-extern rtx emit_barrier PARAMS ((void));
-extern rtx emit_line_note PARAMS ((const char *, int));
-extern rtx emit_note PARAMS ((const char *, int));
-extern rtx emit_line_note_force PARAMS ((const char *, int));
-extern rtx make_insn_raw PARAMS ((rtx));
-extern rtx previous_insn PARAMS ((rtx));
-extern rtx next_insn PARAMS ((rtx));
-extern rtx prev_nonnote_insn PARAMS ((rtx));
-extern rtx next_nonnote_insn PARAMS ((rtx));
-extern rtx prev_real_insn PARAMS ((rtx));
-extern rtx next_real_insn PARAMS ((rtx));
-extern rtx prev_active_insn PARAMS ((rtx));
-extern rtx next_active_insn PARAMS ((rtx));
-extern int active_insn_p PARAMS ((rtx));
-extern rtx prev_label PARAMS ((rtx));
-extern rtx next_label PARAMS ((rtx));
-extern rtx next_cc0_user PARAMS ((rtx));
-extern rtx prev_cc0_setter PARAMS ((rtx));
+extern rtx emit_insn_before (rtx, rtx);
+extern rtx emit_insn_before_noloc (rtx, rtx, struct basic_block_def *);
+extern rtx emit_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_jump_insn_before (rtx, rtx);
+extern rtx emit_jump_insn_before_noloc (rtx, rtx);
+extern rtx emit_jump_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_call_insn_before (rtx, rtx);
+extern rtx emit_call_insn_before_noloc (rtx, rtx);
+extern rtx emit_call_insn_before_setloc (rtx, rtx, int);
+extern rtx emit_barrier_before (rtx);
+extern rtx emit_label_before (rtx, rtx);
+extern rtx emit_note_before (enum insn_note, rtx);
+extern rtx emit_insn_after (rtx, rtx);
+extern rtx emit_insn_after_noloc (rtx, rtx, struct basic_block_def *);
+extern rtx emit_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_jump_insn_after (rtx, rtx);
+extern rtx emit_jump_insn_after_noloc (rtx, rtx);
+extern rtx emit_jump_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_call_insn_after (rtx, rtx);
+extern rtx emit_call_insn_after_noloc (rtx, rtx);
+extern rtx emit_call_insn_after_setloc (rtx, rtx, int);
+extern rtx emit_barrier_after (rtx);
+extern rtx emit_label_after (rtx, rtx);
+extern rtx emit_note_after (enum insn_note, rtx);
+extern rtx emit_insn (rtx);
+extern rtx emit_jump_insn (rtx);
+extern rtx emit_call_insn (rtx);
+extern rtx emit_label (rtx);
+extern rtx emit_barrier (void);
+extern rtx emit_note (enum insn_note);
+extern rtx emit_note_copy (rtx);
+extern rtx gen_clobber (rtx);
+extern rtx emit_clobber (rtx);
+extern rtx gen_use (rtx);
+extern rtx emit_use (rtx);
+extern rtx make_insn_raw (rtx);
+extern rtx make_jump_insn_raw (rtx);
+extern void add_function_usage_to (rtx, rtx);
+extern rtx last_call_insn (void);
+extern rtx previous_insn (rtx);
+extern rtx next_insn (rtx);
+extern rtx prev_nonnote_insn (rtx);
+extern rtx next_nonnote_insn (rtx);
+extern rtx prev_real_insn (rtx);
+extern rtx next_real_insn (rtx);
+extern rtx prev_active_insn (rtx);
+extern rtx next_active_insn (rtx);
+extern int active_insn_p (const_rtx);
+extern rtx prev_label (rtx);
+extern rtx next_label (rtx);
+extern rtx skip_consecutive_labels (rtx);
+extern rtx next_cc0_user (rtx);
+extern rtx prev_cc0_setter (rtx);
+
+/* In cfglayout.c */
+extern int insn_line (const_rtx);
+extern const char * insn_file (const_rtx);
+extern location_t locator_location (int);
+extern int locator_line (int);
+extern const char * locator_file (int);
+extern bool locator_eq (int, int);
+extern int prologue_locator, epilogue_locator;
/* In jump.c */
-extern rtx next_nondeleted_insn PARAMS ((rtx));
-extern enum rtx_code reverse_condition PARAMS ((enum rtx_code));
-extern enum rtx_code reverse_condition_maybe_unordered PARAMS ((enum rtx_code));
-extern enum rtx_code swap_condition PARAMS ((enum rtx_code));
-extern enum rtx_code unsigned_condition PARAMS ((enum rtx_code));
-extern enum rtx_code signed_condition PARAMS ((enum rtx_code));
-extern void mark_jump_label PARAMS ((rtx, rtx, int));
-extern void cleanup_barriers PARAMS ((void));
+extern enum rtx_code reverse_condition (enum rtx_code);
+extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code);
+extern enum rtx_code swap_condition (enum rtx_code);
+extern enum rtx_code unsigned_condition (enum rtx_code);
+extern enum rtx_code signed_condition (enum rtx_code);
+extern void mark_jump_label (rtx, rtx, int);
+extern unsigned int cleanup_barriers (void);
/* In jump.c */
-extern bool squeeze_notes PARAMS ((rtx *, rtx *));
-extern rtx delete_related_insns PARAMS ((rtx));
-extern void delete_jump PARAMS ((rtx));
-extern void delete_barrier PARAMS ((rtx));
-extern rtx get_label_before PARAMS ((rtx));
-extern rtx get_label_after PARAMS ((rtx));
-extern rtx follow_jumps PARAMS ((rtx));
+extern rtx delete_related_insns (rtx);
/* In recog.c */
-extern rtx *find_constant_term_loc PARAMS ((rtx *));
+extern rtx *find_constant_term_loc (rtx *);
/* In emit-rtl.c */
-extern rtx try_split PARAMS ((rtx, rtx, int));
+extern rtx try_split (rtx, rtx, int);
extern int split_branch_probability;
/* In unknown file */
-extern rtx split_insns PARAMS ((rtx, rtx));
+extern rtx split_insns (rtx, rtx);
/* In simplify-rtx.c */
-extern rtx simplify_unary_operation PARAMS ((enum rtx_code,
- enum machine_mode, rtx,
- enum machine_mode));
-extern rtx simplify_binary_operation PARAMS ((enum rtx_code,
- enum machine_mode, rtx,
- rtx));
-extern rtx simplify_ternary_operation PARAMS ((enum rtx_code,
- enum machine_mode,
- enum machine_mode, rtx, rtx,
- rtx));
-extern rtx simplify_relational_operation PARAMS ((enum rtx_code,
- enum machine_mode, rtx,
- rtx));
-extern rtx simplify_gen_binary PARAMS ((enum rtx_code,
- enum machine_mode,
- rtx, rtx));
-extern rtx simplify_gen_unary PARAMS ((enum rtx_code,
- enum machine_mode, rtx,
- enum machine_mode));
-extern rtx simplify_gen_ternary PARAMS ((enum rtx_code,
- enum machine_mode,
- enum machine_mode,
- rtx, rtx, rtx));
-extern rtx simplify_gen_relational PARAMS ((enum rtx_code,
- enum machine_mode,
- enum machine_mode,
- rtx, rtx));
-extern rtx simplify_subreg PARAMS ((enum machine_mode,
- rtx,
- enum machine_mode,
- unsigned int));
-extern rtx simplify_gen_subreg PARAMS ((enum machine_mode,
- rtx,
- enum machine_mode,
- unsigned int));
-extern rtx simplify_replace_rtx PARAMS ((rtx, rtx, rtx));
-extern rtx simplify_rtx PARAMS ((rtx));
-extern rtx avoid_constant_pool_reference PARAMS ((rtx));
-
-/* In function.c */
-extern rtx gen_mem_addressof PARAMS ((rtx, tree));
-
-/* In regclass.c */
-extern enum machine_mode choose_hard_reg_mode PARAMS ((unsigned int,
- unsigned int));
+extern rtx simplify_const_unary_operation (enum rtx_code, enum machine_mode,
+ rtx, enum machine_mode);
+extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx,
+ enum machine_mode);
+extern rtx simplify_const_binary_operation (enum rtx_code, enum machine_mode,
+ rtx, rtx);
+extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx,
+ rtx);
+extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode,
+ enum machine_mode, rtx, rtx, rtx);
+extern rtx simplify_const_relational_operation (enum rtx_code,
+ enum machine_mode, rtx, rtx);
+extern rtx simplify_relational_operation (enum rtx_code, enum machine_mode,
+ enum machine_mode, rtx, rtx);
+extern rtx simplify_gen_binary (enum rtx_code, enum machine_mode, rtx, rtx);
+extern rtx simplify_gen_unary (enum rtx_code, enum machine_mode, rtx,
+ enum machine_mode);
+extern rtx simplify_gen_ternary (enum rtx_code, enum machine_mode,
+ enum machine_mode, rtx, rtx, rtx);
+extern rtx simplify_gen_relational (enum rtx_code, enum machine_mode,
+ enum machine_mode, rtx, rtx);
+extern rtx simplify_subreg (enum machine_mode, rtx, enum machine_mode,
+ unsigned int);
+extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode,
+ unsigned int);
+extern rtx simplify_replace_rtx (rtx, const_rtx, rtx);
+extern rtx simplify_rtx (const_rtx);
+extern rtx avoid_constant_pool_reference (rtx);
+extern bool mode_signbit_p (enum machine_mode, const_rtx);
+
+/* In reginfo.c */
+extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int,
+ bool);
/* In emit-rtl.c */
-extern rtx set_unique_reg_note PARAMS ((rtx, enum reg_note, rtx));
+extern rtx set_unique_reg_note (rtx, enum reg_note, rtx);
+extern void set_insn_deleted (rtx);
/* Functions in rtlanal.c */
: NULL_RTX)
#define single_set_1(I) single_set_2 (I, PATTERN (I))
-extern int rtx_addr_can_trap_p PARAMS ((rtx));
-extern int rtx_unstable_p PARAMS ((rtx));
-extern int rtx_varies_p PARAMS ((rtx, int));
-extern int rtx_addr_varies_p PARAMS ((rtx, int));
-extern HOST_WIDE_INT get_integer_term PARAMS ((rtx));
-extern rtx get_related_value PARAMS ((rtx));
-extern rtx get_jump_table_offset PARAMS ((rtx, rtx *));
-extern int reg_mentioned_p PARAMS ((rtx, rtx));
-extern int count_occurrences PARAMS ((rtx, rtx, int));
-extern int reg_referenced_p PARAMS ((rtx, rtx));
-extern int reg_used_between_p PARAMS ((rtx, rtx, rtx));
-extern int reg_referenced_between_p PARAMS ((rtx, rtx, rtx));
-extern int reg_set_between_p PARAMS ((rtx, rtx, rtx));
-extern int regs_set_between_p PARAMS ((rtx, rtx, rtx));
-extern int commutative_operand_precedence PARAMS ((rtx));
-extern int swap_commutative_operands_p PARAMS ((rtx, rtx));
-extern int modified_between_p PARAMS ((rtx, rtx, rtx));
-extern int no_labels_between_p PARAMS ((rtx, rtx));
-extern int no_jumps_between_p PARAMS ((rtx, rtx));
-extern int modified_in_p PARAMS ((rtx, rtx));
-extern int insn_dependent_p PARAMS ((rtx, rtx));
-extern int reg_set_p PARAMS ((rtx, rtx));
-extern rtx single_set_2 PARAMS ((rtx, rtx));
-extern int multiple_sets PARAMS ((rtx));
-extern int set_noop_p PARAMS ((rtx));
-extern int noop_move_p PARAMS ((rtx));
-extern rtx find_last_value PARAMS ((rtx, rtx *, rtx, int));
-extern int refers_to_regno_p PARAMS ((unsigned int, unsigned int,
- rtx, rtx *));
-extern int reg_overlap_mentioned_p PARAMS ((rtx, rtx));
-extern rtx set_of PARAMS ((rtx, rtx));
-extern void note_stores PARAMS ((rtx,
- void (*) (rtx, rtx, void *),
- void *));
-extern void note_uses PARAMS ((rtx *,
- void (*) (rtx *, void *),
- void *));
-extern rtx reg_set_last PARAMS ((rtx, rtx));
-extern int dead_or_set_p PARAMS ((rtx, rtx));
-extern int dead_or_set_regno_p PARAMS ((rtx, unsigned int));
-extern rtx find_reg_note PARAMS ((rtx, enum reg_note, rtx));
-extern rtx find_regno_note PARAMS ((rtx, enum reg_note,
- unsigned int));
-extern rtx find_reg_equal_equiv_note PARAMS ((rtx));
-extern int find_reg_fusage PARAMS ((rtx, enum rtx_code, rtx));
-extern int find_regno_fusage PARAMS ((rtx, enum rtx_code,
- unsigned int));
-extern int pure_call_p PARAMS ((rtx));
-extern void remove_note PARAMS ((rtx, rtx));
-extern int side_effects_p PARAMS ((rtx));
-extern int volatile_refs_p PARAMS ((rtx));
-extern int volatile_insn_p PARAMS ((rtx));
-extern int may_trap_p PARAMS ((rtx));
-extern int inequality_comparisons_p PARAMS ((rtx));
-extern rtx replace_rtx PARAMS ((rtx, rtx, rtx));
-extern rtx replace_regs PARAMS ((rtx, rtx *, unsigned int,
- int));
-extern int computed_jump_p PARAMS ((rtx));
-typedef int (*rtx_function) PARAMS ((rtx *, void *));
-extern int for_each_rtx PARAMS ((rtx *, rtx_function, void *));
-extern rtx regno_use_in PARAMS ((unsigned int, rtx));
-extern int auto_inc_p PARAMS ((rtx));
-extern int in_expr_list_p PARAMS ((rtx, rtx));
-extern void remove_node_from_expr_list PARAMS ((rtx, rtx *));
-extern int insns_safe_to_move_p PARAMS ((rtx, rtx, rtx *));
-extern int loc_mentioned_in_p PARAMS ((rtx *, rtx));
-extern rtx find_first_parameter_load PARAMS ((rtx, rtx));
-
-/* flow.c */
-
-extern rtx find_use_as_address PARAMS ((rtx, rtx, HOST_WIDE_INT));
-void init_EXPR_INSN_LIST_cache PARAMS ((void));
-void free_EXPR_LIST_list PARAMS ((rtx *));
-void free_INSN_LIST_list PARAMS ((rtx *));
-void free_EXPR_LIST_node PARAMS ((rtx));
-void free_INSN_LIST_node PARAMS ((rtx));
-rtx alloc_INSN_LIST PARAMS ((rtx, rtx));
-rtx alloc_EXPR_LIST PARAMS ((int, rtx, rtx));
-
-/* regclass.c */
-
-/* Maximum number of parallel sets and clobbers in any insn in this fn.
- Always at least 3, since the combiner could put that many togetherm
- and we want this to remain correct for all the remaining passes. */
-
-extern int max_parallel;
-
+/* Structure used for passing data to REPLACE_LABEL. */
+typedef struct replace_label_data
+{
+ rtx r1;
+ rtx r2;
+ bool update_label_nuses;
+} replace_label_data;
+
+extern int rtx_addr_can_trap_p (const_rtx);
+extern bool nonzero_address_p (const_rtx);
+extern int rtx_unstable_p (const_rtx);
+extern bool rtx_varies_p (const_rtx, bool);
+extern bool rtx_addr_varies_p (const_rtx, bool);
+extern HOST_WIDE_INT get_integer_term (const_rtx);
+extern rtx get_related_value (const_rtx);
+extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT);
+extern void split_const (rtx, rtx *, rtx *);
+extern int reg_mentioned_p (const_rtx, const_rtx);
+extern int count_occurrences (const_rtx, const_rtx, int);
+extern int reg_referenced_p (const_rtx, const_rtx);
+extern int reg_used_between_p (const_rtx, const_rtx, const_rtx);
+extern int reg_set_between_p (const_rtx, const_rtx, const_rtx);
+extern int commutative_operand_precedence (rtx);
+extern bool swap_commutative_operands_p (rtx, rtx);
+extern int modified_between_p (const_rtx, const_rtx, const_rtx);
+extern int no_labels_between_p (const_rtx, const_rtx);
+extern int modified_in_p (const_rtx, const_rtx);
+extern int reg_set_p (const_rtx, const_rtx);
+extern rtx single_set_2 (const_rtx, const_rtx);
+extern int multiple_sets (const_rtx);
+extern int set_noop_p (const_rtx);
+extern int noop_move_p (const_rtx);
+extern rtx find_last_value (rtx, rtx *, rtx, int);
+extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *);
+extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
+extern const_rtx set_of (const_rtx, const_rtx);
+extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
+extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
+extern int dead_or_set_p (const_rtx, const_rtx);
+extern int dead_or_set_regno_p (const_rtx, unsigned int);
+extern rtx find_reg_note (const_rtx, enum reg_note, const_rtx);
+extern rtx find_regno_note (const_rtx, enum reg_note, unsigned int);
+extern rtx find_reg_equal_equiv_note (const_rtx);
+extern rtx find_constant_src (const_rtx);
+extern int find_reg_fusage (const_rtx, enum rtx_code, const_rtx);
+extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int);
+extern void add_reg_note (rtx, enum reg_note, rtx);
+extern void remove_note (rtx, const_rtx);
+extern void remove_reg_equal_equiv_notes (rtx);
+extern int side_effects_p (const_rtx);
+extern int volatile_refs_p (const_rtx);
+extern int volatile_insn_p (const_rtx);
+extern int may_trap_p_1 (const_rtx, unsigned);
+extern int may_trap_p (const_rtx);
+extern int may_trap_or_fault_p (const_rtx);
+extern int inequality_comparisons_p (const_rtx);
+extern rtx replace_rtx (rtx, rtx, rtx);
+extern int replace_label (rtx *, void *);
+extern int rtx_referenced_p (rtx, rtx);
+extern bool tablejump_p (const_rtx, rtx *, rtx *);
+extern int computed_jump_p (const_rtx);
+
+typedef int (*rtx_function) (rtx *, void *);
+extern int for_each_rtx (rtx *, rtx_function, void *);
+
+typedef int (*rtx_equal_p_callback_function) (const_rtx *, const_rtx *,
+ rtx *, rtx *);
+extern int rtx_equal_p_cb (const_rtx, const_rtx,
+ rtx_equal_p_callback_function);
+
+typedef int (*hash_rtx_callback_function) (const_rtx, enum machine_mode, rtx *,
+ enum machine_mode *);
+extern unsigned hash_rtx_cb (const_rtx, enum machine_mode, int *, int *,
+ bool, hash_rtx_callback_function);
+
+extern rtx regno_use_in (unsigned int, rtx);
+extern int auto_inc_p (const_rtx);
+extern int in_expr_list_p (const_rtx, const_rtx);
+extern void remove_node_from_expr_list (const_rtx, rtx *);
+extern int loc_mentioned_in_p (rtx *, const_rtx);
+extern rtx find_first_parameter_load (rtx, rtx);
+extern bool keep_with_call_p (const_rtx);
+extern bool label_is_jump_target_p (const_rtx, const_rtx);
+extern int insn_rtx_cost (rtx, bool);
+
+/* Given an insn and condition, return a canonical description of
+ the test being made. */
+extern rtx canonicalize_condition (rtx, rtx, int, rtx *, rtx, int, int);
+
+/* Given a JUMP_INSN, return a canonical description of the test
+ being made. */
+extern rtx get_condition (rtx, rtx *, int, int);
+
+/* lists.c */
+
+extern void free_EXPR_LIST_list (rtx *);
+extern void free_INSN_LIST_list (rtx *);
+extern void free_EXPR_LIST_node (rtx);
+extern void free_INSN_LIST_node (rtx);
+extern rtx alloc_INSN_LIST (rtx, rtx);
+extern rtx alloc_EXPR_LIST (int, rtx, rtx);
+extern void remove_free_INSN_LIST_elem (rtx, rtx *);
+extern rtx remove_list_elem (rtx, rtx *);
+extern rtx remove_free_INSN_LIST_node (rtx *);
+extern rtx remove_free_EXPR_LIST_node (rtx *);
+
+
+/* reginfo.c */
+
+/* Initialize may_move_cost and friends for mode M. */
+extern void init_move_cost (enum machine_mode);
+/* Allocate register info memory. */
+extern void allocate_reg_info (void);
+/* Resize reg info. */
+extern void resize_reg_info (void);
/* Free up register info memory. */
-extern void free_reg_info PARAMS ((void));
+extern void free_reg_info (void);
/* recog.c */
-extern int asm_noperands PARAMS ((rtx));
-extern const char *decode_asm_operands PARAMS ((rtx, rtx *, rtx **,
- const char **,
- enum machine_mode *));
-
-extern enum reg_class reg_preferred_class PARAMS ((int));
-extern enum reg_class reg_alternate_class PARAMS ((int));
+extern int asm_noperands (const_rtx);
+extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **,
+ enum machine_mode *, location_t *);
-extern rtx get_first_nonparm_insn PARAMS ((void));
+extern enum reg_class reg_preferred_class (int);
+extern enum reg_class reg_alternate_class (int);
+extern void setup_reg_classes (int, enum reg_class, enum reg_class);
-extern void split_all_insns PARAMS ((int));
-extern void split_all_insns_noflow PARAMS ((void));
+extern void split_all_insns (void);
+extern unsigned int split_all_insns_noflow (void);
#define MAX_SAVED_CONST_INT 64
-extern rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
+extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
#define const0_rtx (const_int_rtx[MAX_SAVED_CONST_INT])
#define const1_rtx (const_int_rtx[MAX_SAVED_CONST_INT+1])
#define const2_rtx (const_int_rtx[MAX_SAVED_CONST_INT+2])
#define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1])
-extern rtx const_true_rtx;
+extern GTY(()) rtx const_true_rtx;
-extern rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
+extern GTY(()) rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
/* Returns a constant 0 rtx in mode MODE. Integer modes are treated the
same as VOIDmode. */
};
/* Pointers to standard pieces of rtx are stored here. */
-extern rtx global_rtl[GR_MAX];
+extern GTY(()) rtx global_rtl[GR_MAX];
/* Standard pieces of rtx, to be substituted directly into things. */
#define pc_rtx (global_rtl[GR_PC])
#define hard_frame_pointer_rtx (global_rtl[GR_HARD_FRAME_POINTER])
#define arg_pointer_rtx (global_rtl[GR_ARG_POINTER])
-extern rtx pic_offset_table_rtx;
-extern rtx struct_value_rtx;
-extern rtx struct_value_incoming_rtx;
-extern rtx static_chain_rtx;
-extern rtx static_chain_incoming_rtx;
-extern rtx return_address_pointer_rtx;
+extern GTY(()) rtx pic_offset_table_rtx;
+extern GTY(()) rtx static_chain_rtx;
+extern GTY(()) rtx static_chain_incoming_rtx;
+extern GTY(()) rtx return_address_pointer_rtx;
/* Include the RTL generation functions. */
-#ifndef NO_GENRTL_H
+#ifndef GENERATOR_FILE
#include "genrtl.h"
+#undef gen_rtx_ASM_INPUT
+#define gen_rtx_ASM_INPUT(MODE, ARG0) \
+ gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0)
+#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \
+ gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC))
#endif
/* There are some RTL codes that require special attention; the
generation functions included above do the raw handling. If you
- add to this list, modify special_rtx in gengenrtl.c as well. You
- should also modify gen_rtx to use the special function. */
+ add to this list, modify special_rtx in gengenrtl.c as well. */
-extern rtx gen_rtx_CONST_DOUBLE PARAMS ((enum machine_mode,
- HOST_WIDE_INT, HOST_WIDE_INT));
-extern rtx gen_rtx_CONST_INT PARAMS ((enum machine_mode, HOST_WIDE_INT));
-extern rtx gen_raw_REG PARAMS ((enum machine_mode, int));
-extern rtx gen_rtx_REG PARAMS ((enum machine_mode, int));
-extern rtx gen_rtx_SUBREG PARAMS ((enum machine_mode, rtx, int));
-extern rtx gen_rtx_MEM PARAMS ((enum machine_mode, rtx));
+extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT);
+extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec);
+extern rtx gen_raw_REG (enum machine_mode, int);
+extern rtx gen_rtx_REG (enum machine_mode, unsigned);
+extern rtx gen_rtx_SUBREG (enum machine_mode, rtx, int);
+extern rtx gen_rtx_MEM (enum machine_mode, rtx);
-extern rtx gen_lowpart_SUBREG PARAMS ((enum machine_mode, rtx));
-
-/* We need the cast here to ensure that we get the same result both with
- and without prototypes. */
-#define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (HOST_WIDE_INT) (N))
+#define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (N))
/* Virtual registers are used during RTL generation to refer to locations into
the stack frame when the actual location isn't known until RTL generation
#define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3)
/* This points to the Canonical Frame Address of the function. This
- should corrospond to the CFA produced by INCOMING_FRAME_SP_OFFSET,
+ should correspond to the CFA produced by INCOMING_FRAME_SP_OFFSET,
but is calculated relative to the arg pointer for simplicity; the
frame pointer nor stack pointer are necessarily fixed relative to
the CFA until after reload. */
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
/* Nonzero if REGNUM is a pointer into the stack frame. */
-#define REGNO_PTR_FRAME_P(REGNUM) \
+#define REGNO_PTR_FRAME_P(REGNUM) \
((REGNUM) == STACK_POINTER_REGNUM \
|| (REGNUM) == FRAME_POINTER_REGNUM \
|| (REGNUM) == HARD_FRAME_POINTER_REGNUM \
/* REGNUM never really appearing in the INSN stream. */
#define INVALID_REGNUM (~(unsigned int) 0)
-extern rtx find_next_ref PARAMS ((rtx, rtx));
-
-extern rtx output_constant_def PARAMS ((tree, int));
-extern rtx immed_real_const PARAMS ((tree));
-
-/* Define a default value for STORE_FLAG_VALUE. */
-
-#ifndef STORE_FLAG_VALUE
-#define STORE_FLAG_VALUE 1
-#endif
-
-/* Nonzero after the second flow pass has completed.
- Set to 1 or 0 by toplev.c */
-extern int flow2_completed;
+extern rtx output_constant_def (tree, int);
+extern rtx lookup_constant_def (tree);
/* Nonzero after end of reload pass.
Set to 1 or 0 by reload1.c. */
extern int reload_completed;
+/* Nonzero after thread_prologue_and_epilogue_insns has run. */
+extern int epilogue_completed;
+
/* Set to 1 while reload_as_needed is operating.
Required by some machines to handle any generated moves differently. */
extern int reload_in_progress;
+/* This macro indicates whether you may create a new
+ pseudo-register. */
+
+#define can_create_pseudo_p() (!reload_in_progress && !reload_completed)
+
+#ifdef STACK_REGS
+/* Nonzero after end of regstack pass.
+ Set to 1 or 0 by reg-stack.c. */
+extern int regstack_completed;
+#endif
+
/* If this is nonzero, we do not bother generating VOLATILE
around volatile memory references, and we are willing to
output indirect addresses. If cse is to follow, we reject
the same indirect address eventually. */
extern int cse_not_expected;
-/* Set to nonzero before life analysis to indicate that it is unsafe to
- generate any new pseudo registers. */
-extern int no_new_pseudos;
-
/* Translates rtx code to tree code, for those codes needed by
REAL_ARITHMETIC. The function returns an int because the caller may not
know what `enum tree_code' means. */
-extern int rtx_to_tree_code PARAMS ((enum rtx_code));
-
-/* In tree.c */
-struct obstack;
-extern void gcc_obstack_init PARAMS ((struct obstack *));
+extern int rtx_to_tree_code (enum rtx_code);
/* In cse.c */
-struct cse_basic_block_data;
-
-/* Return the right cost to give to an operation
- to make the cost of the corresponding register-to-register instruction
- N times that of a fast register-to-register instruction. */
-#define COSTS_N_INSNS(N) ((N) * 4)
-
-/* Maximum cost of a rtl expression. This value has the special meaning
- not to use an rtx with this cost under any circumstances. */
-#define MAX_COST INT_MAX
-
-extern int rtx_cost PARAMS ((rtx, enum rtx_code));
-extern int address_cost PARAMS ((rtx, enum machine_mode));
-extern void delete_trivially_dead_insns PARAMS ((rtx, int, int));
-#ifdef BUFSIZ
-extern int cse_main PARAMS ((rtx, int, int, FILE *));
-#endif
-extern void cse_end_of_basic_block PARAMS ((rtx,
- struct cse_basic_block_data *,
- int, int, int));
+extern int delete_trivially_dead_insns (rtx, int);
+extern int cse_main (rtx, int);
+extern int exp_equiv_p (const_rtx, const_rtx, int, bool);
+extern unsigned hash_rtx (const_rtx x, enum machine_mode, int *, int *, bool);
/* In jump.c */
-extern int comparison_dominates_p PARAMS ((enum rtx_code, enum rtx_code));
-extern int condjump_p PARAMS ((rtx));
-extern int any_condjump_p PARAMS ((rtx));
-extern int any_uncondjump_p PARAMS ((rtx));
-extern int safe_to_remove_jump_p PARAMS ((rtx));
-extern rtx pc_set PARAMS ((rtx));
-extern rtx condjump_label PARAMS ((rtx));
-extern int simplejump_p PARAMS ((rtx));
-extern int returnjump_p PARAMS ((rtx));
-extern int tablejump_p PARAMS ((rtx));
-extern int onlyjump_p PARAMS ((rtx));
-extern int only_sets_cc0_p PARAMS ((rtx));
-extern int sets_cc0_p PARAMS ((rtx));
-extern int invert_jump_1 PARAMS ((rtx, rtx));
-extern int invert_jump PARAMS ((rtx, rtx, int));
-extern int rtx_renumbered_equal_p PARAMS ((rtx, rtx));
-extern int true_regnum PARAMS ((rtx));
-extern unsigned int reg_or_subregno PARAMS ((rtx));
-extern int redirect_jump_1 PARAMS ((rtx, rtx));
-extern int redirect_jump PARAMS ((rtx, rtx, int));
-extern void rebuild_jump_labels PARAMS ((rtx));
-extern enum rtx_code reversed_comparison_code PARAMS ((rtx, rtx));
-extern enum rtx_code reversed_comparison_code_parts PARAMS ((enum rtx_code,
- rtx, rtx, rtx));
-extern void delete_for_peephole PARAMS ((rtx, rtx));
-extern int condjump_in_parallel_p PARAMS ((rtx));
-extern void never_reached_warning PARAMS ((rtx, rtx));
-extern void purge_line_number_notes PARAMS ((rtx));
-extern void copy_loop_headers PARAMS ((rtx));
+extern int comparison_dominates_p (enum rtx_code, enum rtx_code);
+extern int condjump_p (const_rtx);
+extern int any_condjump_p (const_rtx);
+extern int any_uncondjump_p (const_rtx);
+extern rtx pc_set (const_rtx);
+extern rtx condjump_label (const_rtx);
+extern int simplejump_p (const_rtx);
+extern int returnjump_p (rtx);
+extern int onlyjump_p (const_rtx);
+extern int only_sets_cc0_p (const_rtx);
+extern int sets_cc0_p (const_rtx);
+extern int invert_jump_1 (rtx, rtx);
+extern int invert_jump (rtx, rtx, int);
+extern int rtx_renumbered_equal_p (const_rtx, const_rtx);
+extern int true_regnum (const_rtx);
+extern unsigned int reg_or_subregno (const_rtx);
+extern int redirect_jump_1 (rtx, rtx);
+extern void redirect_jump_2 (rtx, rtx, rtx, int, int);
+extern int redirect_jump (rtx, rtx, int);
+extern void rebuild_jump_labels (rtx);
+extern rtx reversed_comparison (const_rtx, enum machine_mode);
+extern enum rtx_code reversed_comparison_code (const_rtx, const_rtx);
+extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, const_rtx,
+ const_rtx, const_rtx);
+extern void delete_for_peephole (rtx, rtx);
+extern int condjump_in_parallel_p (const_rtx);
/* In emit-rtl.c. */
-extern int max_reg_num PARAMS ((void));
-extern int max_label_num PARAMS ((void));
-extern int get_first_label_num PARAMS ((void));
-extern void delete_insns_since PARAMS ((rtx));
-extern void mark_reg_pointer PARAMS ((rtx, int));
-extern void mark_user_reg PARAMS ((rtx));
-extern void reset_used_flags PARAMS ((rtx));
-extern void reorder_insns PARAMS ((rtx, rtx, rtx));
-extern void reorder_insns_nobb PARAMS ((rtx, rtx, rtx));
-extern int get_max_uid PARAMS ((void));
-extern int in_sequence_p PARAMS ((void));
-extern void force_next_line_note PARAMS ((void));
-extern void clear_emit_caches PARAMS ((void));
-extern void init_emit PARAMS ((void));
-extern void init_emit_once PARAMS ((int));
-extern void push_topmost_sequence PARAMS ((void));
-extern void pop_topmost_sequence PARAMS ((void));
-extern int subreg_realpart_p PARAMS ((rtx));
-extern void reverse_comparison PARAMS ((rtx));
-extern void set_new_first_and_last_insn PARAMS ((rtx, rtx));
-extern void set_new_first_and_last_label_num PARAMS ((int, int));
-extern void set_new_last_label_num PARAMS ((int));
-extern void unshare_all_rtl_again PARAMS ((rtx));
-extern void set_last_insn PARAMS ((rtx));
-extern void link_cc0_insns PARAMS ((rtx));
-extern void add_insn PARAMS ((rtx));
-extern void add_insn_before PARAMS ((rtx, rtx));
-extern void add_insn_after PARAMS ((rtx, rtx));
-extern void remove_insn PARAMS ((rtx));
-extern void reorder_insns_with_line_notes PARAMS ((rtx, rtx, rtx));
-extern void emit_insn_after_with_line_notes PARAMS ((rtx, rtx, rtx));
-extern enum rtx_code classify_insn PARAMS ((rtx));
-extern rtx emit PARAMS ((rtx));
-/* Query and clear/ restore no_line_numbers. This is used by the
- switch / case handling in stmt.c to give proper line numbers in
- warnings about unreachable code. */
-int force_line_numbers PARAMS ((void));
-void restore_line_number_status PARAMS ((int old_value));
-extern void renumber_insns PARAMS ((FILE *));
-extern void remove_unnecessary_notes PARAMS ((void));
-extern rtx delete_insn PARAMS ((rtx));
-extern void delete_insn_chain PARAMS ((rtx, rtx));
-
-/* In combine.c */
-extern int combine_instructions PARAMS ((rtx, unsigned int));
-extern unsigned int extended_count PARAMS ((rtx, enum machine_mode, int));
-extern rtx remove_death PARAMS ((unsigned int, rtx));
-#ifdef BUFSIZ
-extern void dump_combine_stats PARAMS ((FILE *));
-extern void dump_combine_total_stats PARAMS ((FILE *));
-#endif
-
-/* In sched.c. */
-#ifdef BUFSIZ
-extern void schedule_insns PARAMS ((FILE *));
-extern void schedule_ebbs PARAMS ((FILE *));
-#endif
-extern void fix_sched_param PARAMS ((const char *, const char *));
+extern int max_reg_num (void);
+extern int max_label_num (void);
+extern int get_first_label_num (void);
+extern void maybe_set_first_label_num (rtx);
+extern void delete_insns_since (rtx);
+extern void mark_reg_pointer (rtx, int);
+extern void mark_user_reg (rtx);
+extern void reset_used_flags (rtx);
+extern void set_used_flags (rtx);
+extern void reorder_insns (rtx, rtx, rtx);
+extern void reorder_insns_nobb (rtx, rtx, rtx);
+extern int get_max_uid (void);
+extern int in_sequence_p (void);
+extern void force_next_line_note (void);
+extern void init_emit (void);
+extern void init_emit_regs (void);
+extern void init_emit_once (int);
+extern void push_topmost_sequence (void);
+extern void pop_topmost_sequence (void);
+extern void set_new_first_and_last_insn (rtx, rtx);
+extern unsigned int unshare_all_rtl (void);
+extern void unshare_all_rtl_again (rtx);
+extern void unshare_all_rtl_in_chain (rtx);
+extern void verify_rtl_sharing (void);
+extern void set_first_insn (rtx);
+extern void set_last_insn (rtx);
+extern void link_cc0_insns (rtx);
+extern void add_insn (rtx);
+extern void add_insn_before (rtx, rtx, struct basic_block_def *);
+extern void add_insn_after (rtx, rtx, struct basic_block_def *);
+extern void remove_insn (rtx);
+extern rtx emit (rtx);
+extern rtx delete_insn (rtx);
+extern rtx entry_of_function (void);
+extern void emit_insn_at_entry (rtx);
+extern void delete_insn_chain (rtx, rtx, bool);
+extern rtx unlink_insn_chain (rtx, rtx);
+extern rtx delete_insn_and_edges (rtx);
+extern void delete_insn_chain_and_edges (rtx, rtx);
+extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
+extern rtx gen_const_mem (enum machine_mode, rtx);
+extern rtx gen_frame_mem (enum machine_mode, rtx);
+extern rtx gen_tmp_stack_mem (enum machine_mode, rtx);
+extern bool validate_subreg (enum machine_mode, enum machine_mode,
+ const_rtx, unsigned int);
+
+/* In combine.c */
+extern unsigned int extended_count (const_rtx, enum machine_mode, int);
+extern rtx remove_death (unsigned int, rtx);
+extern void dump_combine_stats (FILE *);
+extern void dump_combine_total_stats (FILE *);
+
+/* In cfgcleanup.c */
+extern void delete_dead_jumptables (void);
+
+/* In sched-vis.c. */
+extern void debug_bb_n_slim (int);
+extern void debug_bb_slim (struct basic_block_def *);
+extern void print_rtl_slim (FILE *, rtx, rtx, int, int);
+extern void print_rtl_slim_with_bb (FILE *, rtx, int);
+extern void dump_insn_slim (FILE *f, rtx x);
+extern void debug_insn_slim (rtx x);
+
+/* In sched-rgn.c. */
+extern void schedule_insns (void);
+
+/* In sched-ebb.c. */
+extern void schedule_ebbs (void);
+
+/* In haifa-sched.c. */
+extern void fix_sched_param (const char *, const char *);
+
+/* In sel-sched-dump.c. */
+extern void sel_sched_fix_param (const char *param, const char *val);
/* In print-rtl.c */
extern const char *print_rtx_head;
-extern void debug_rtx PARAMS ((rtx));
-extern void debug_rtx_list PARAMS ((rtx, int));
-extern void debug_rtx_range PARAMS ((rtx, rtx));
-extern rtx debug_rtx_find PARAMS ((rtx, int));
-#ifdef BUFSIZ
-extern void print_mem_expr PARAMS ((FILE *, tree));
-extern void print_rtl PARAMS ((FILE *, rtx));
-extern void print_simple_rtl PARAMS ((FILE *, rtx));
-extern int print_rtl_single PARAMS ((FILE *, rtx));
-extern void print_inline_rtx PARAMS ((FILE *, rtx, int));
-#endif
-
-/* In loop.c */
-extern void init_loop PARAMS ((void));
-extern rtx libcall_other_reg PARAMS ((rtx, rtx));
-#ifdef BUFSIZ
-extern void loop_optimize PARAMS ((rtx, FILE *, int));
-#endif
-extern void record_excess_regs PARAMS ((rtx, rtx, rtx *));
+extern void debug_rtx (const_rtx);
+extern void debug_rtx_list (const_rtx, int);
+extern void debug_rtx_range (const_rtx, const_rtx);
+extern const_rtx debug_rtx_find (const_rtx, int);
+extern void print_mem_expr (FILE *, const_tree);
+extern void print_rtl (FILE *, const_rtx);
+extern void print_simple_rtl (FILE *, const_rtx);
+extern int print_rtl_single (FILE *, const_rtx);
+extern void print_inline_rtx (FILE *, const_rtx, int);
/* In function.c */
-extern void reposition_prologue_and_epilogue_notes PARAMS ((rtx));
-extern void thread_prologue_and_epilogue_insns PARAMS ((rtx));
-extern int prologue_epilogue_contains PARAMS ((rtx));
-extern int sibcall_epilogue_contains PARAMS ((rtx));
-extern void preserve_rtl_expr_result PARAMS ((rtx));
-extern void mark_temp_addr_taken PARAMS ((rtx));
-extern void update_temp_slot_address PARAMS ((rtx, rtx));
-extern void purge_addressof PARAMS ((rtx));
-extern void purge_hard_subreg_sets PARAMS ((rtx));
+extern void reposition_prologue_and_epilogue_notes (void);
+extern int prologue_epilogue_contains (const_rtx);
+extern int sibcall_epilogue_contains (const_rtx);
+extern void mark_temp_addr_taken (rtx);
+extern void update_temp_slot_address (rtx, rtx);
/* In stmt.c */
-extern void set_file_and_line_for_stmt PARAMS ((const char *, int));
-extern void expand_null_return PARAMS ((void));
-extern void emit_jump PARAMS ((rtx));
-extern int preserve_subexpressions_p PARAMS ((void));
+extern void expand_null_return (void);
+extern void expand_naked_return (void);
+extern void emit_jump (rtx);
/* In expr.c */
-extern void move_by_pieces PARAMS ((rtx, rtx,
- unsigned HOST_WIDE_INT,
- unsigned int));
-
-/* In flow.c */
-extern void recompute_reg_usage PARAMS ((rtx, int));
-extern int initialize_uninitialized_subregs PARAMS ((void));
-#ifdef BUFSIZ
-extern void print_rtl_with_bb PARAMS ((FILE *, rtx));
-extern void dump_flow_info PARAMS ((FILE *));
-#endif
+extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT,
+ unsigned int, int);
+
+/* In cfgrtl.c */
+extern void print_rtl_with_bb (FILE *, const_rtx);
+
+/* In cfg.c. */
+extern void dump_reg_info (FILE *);
+extern void dump_flow_info (FILE *, int);
/* In expmed.c */
-extern void init_expmed PARAMS ((void));
-extern void expand_inc PARAMS ((rtx, rtx));
-extern void expand_dec PARAMS ((rtx, rtx));
-extern rtx expand_mult_highpart PARAMS ((enum machine_mode, rtx,
- unsigned HOST_WIDE_INT, rtx,
- int, int));
+extern void init_expmed (void);
+extern void expand_inc (rtx, rtx);
+extern void expand_dec (rtx, rtx);
/* In gcse.c */
-#ifdef BUFSIZ
-extern int gcse_main PARAMS ((rtx, FILE *));
-#endif
+extern bool can_copy_p (enum machine_mode);
+extern rtx fis_get_condition (rtx);
-/* In global.c */
-extern void mark_elimination PARAMS ((int, int));
-#ifdef BUFSIZ
-extern int global_alloc PARAMS ((FILE *));
-extern void dump_global_regs PARAMS ((FILE *));
-#endif
+/* In ira.c */
#ifdef HARD_CONST
-extern void retry_global_alloc PARAMS ((int, HARD_REG_SET));
+extern HARD_REG_SET eliminable_regset;
#endif
-extern void build_insn_chain PARAMS ((rtx));
-
-/* In regclass.c */
-extern int reg_classes_intersect_p PARAMS ((enum reg_class, enum reg_class));
-extern int reg_class_subset_p PARAMS ((enum reg_class, enum reg_class));
-extern void globalize_reg PARAMS ((int));
-extern void init_regs PARAMS ((void));
-extern void init_reg_sets PARAMS ((void));
-extern void regset_release_memory PARAMS ((void));
-extern void regclass_init PARAMS ((void));
-extern void regclass PARAMS ((rtx, int, FILE *));
-extern void reg_scan PARAMS ((rtx, unsigned int, int));
-extern void reg_scan_update PARAMS ((rtx, rtx, unsigned int));
-extern void fix_register PARAMS ((const char *, int, int));
-
-extern void delete_null_pointer_checks PARAMS ((rtx));
-
-/* In regmove.c */
-#ifdef BUFSIZ
-extern void regmove_optimize PARAMS ((rtx, int, FILE *));
+extern void mark_elimination (int, int);
+
+/* In reginfo.c */
+extern int reg_classes_intersect_p (enum reg_class, enum reg_class);
+extern int reg_class_subset_p (enum reg_class, enum reg_class);
+extern void globalize_reg (int);
+extern void init_reg_modes_target (void);
+extern void init_regs (void);
+extern void reinit_regs (void);
+extern void init_fake_stack_mems (void);
+extern void save_register_info (void);
+extern void init_reg_sets (void);
+extern void regclass (rtx, int);
+extern void reg_scan (rtx, unsigned int);
+extern void fix_register (const char *, int, int);
+#ifdef HARD_CONST
+extern void cannot_change_mode_set_regs (HARD_REG_SET *,
+ enum machine_mode, unsigned int);
#endif
-extern void combine_stack_adjustments PARAMS ((void));
+extern bool invalid_mode_change_p (unsigned int, enum reg_class,
+ enum machine_mode);
/* In reorg.c */
-#ifdef BUFSIZ
-extern void dbr_schedule PARAMS ((rtx, FILE *));
-#endif
-
-/* In local-alloc.c */
-#ifdef BUFSIZ
-extern void dump_local_alloc PARAMS ((FILE *));
-#endif
-extern int local_alloc PARAMS ((void));
-extern int function_invariant_p PARAMS ((rtx));
-
-/* In profile.c */
-extern void init_branch_prob PARAMS ((const char *));
-extern void branch_prob PARAMS ((void));
-extern void end_branch_prob PARAMS ((void));
-extern void output_func_start_profiler PARAMS ((void));
-
-/* In reg-stack.c */
-#ifdef BUFSIZ
-extern void reg_to_stack PARAMS ((rtx, FILE *));
-#endif
+extern void dbr_schedule (rtx);
-/* In fold-const.c */
-extern int add_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *));
-extern int neg_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *));
-extern int mul_double PARAMS ((unsigned HOST_WIDE_INT,
- HOST_WIDE_INT,
- unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *));
-extern void lshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, unsigned int,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *, int));
-extern void rshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, unsigned int,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *, int));
-extern void lrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, unsigned int,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *));
-extern void rrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, unsigned int,
- unsigned HOST_WIDE_INT *,
- HOST_WIDE_INT *));
+/* In reload1.c */
+extern int function_invariant_p (const_rtx);
/* In calls.c */
enum libcall_type
LCT_NORMAL = 0,
LCT_CONST = 1,
LCT_PURE = 2,
- LCT_CONST_MAKE_BLOCK = 3,
- LCT_PURE_MAKE_BLOCK = 4,
- LCT_NORETURN = 5,
- LCT_THROW = 6,
- LCT_ALWAYS_RETURN = 7,
- LCT_RETURNS_TWICE = 8
+ LCT_NORETURN = 3,
+ LCT_THROW = 4,
+ LCT_RETURNS_TWICE = 5
};
-extern void emit_library_call PARAMS ((rtx, enum libcall_type,
- enum machine_mode, int,
- ...));
-extern rtx emit_library_call_value PARAMS ((rtx, rtx, enum libcall_type,
- enum machine_mode, int,
- ...));
-
-/* In unroll.c */
-extern int set_dominates_use PARAMS ((int, int, int, rtx, rtx));
+extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int,
+ ...);
+extern rtx emit_library_call_value (rtx, rtx, enum libcall_type,
+ enum machine_mode, int, ...);
/* In varasm.c */
-extern int in_data_section PARAMS ((void));
-extern void init_varasm_once PARAMS ((void));
-
+extern void init_varasm_once (void);
+extern enum tls_model decl_default_tls_model (const_tree);
+
/* In rtl.c */
-extern void init_rtl PARAMS ((void));
-extern void traverse_md_constants PARAMS ((int (*) (void **, void *),
- void *));
+extern void traverse_md_constants (int (*) (void **, void *), void *);
struct md_constant { char *name, *value; };
-#ifdef BUFSIZ
-extern int read_skip_spaces PARAMS ((FILE *));
-extern rtx read_rtx PARAMS ((FILE *));
-#endif
-
+/* In read-rtl.c */
+extern int read_skip_spaces (FILE *);
+extern bool read_rtx (FILE *, rtx *, int *);
+extern void copy_rtx_ptr_loc (const void *, const void *);
+extern void print_rtx_ptr_loc (const void *);
+extern const char *join_c_conditions (const char *, const char *);
+extern void print_c_condition (const char *);
extern const char *read_rtx_filename;
extern int read_rtx_lineno;
-/* Redefine abort to report an internal error w/o coredump, and
- reporting the location of the error in the source file. This logic
- is duplicated in rtl.h and tree.h because every file that needs the
- special abort includes one or both. toplev.h gets too few files,
- system.h gets too many. */
-
-extern void fancy_abort PARAMS ((const char *, int, const char *))
- ATTRIBUTE_NORETURN;
-#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
-
/* In alias.c */
-extern void clear_reg_alias_info PARAMS ((rtx));
-extern rtx canon_rtx PARAMS ((rtx));
-extern int true_dependence PARAMS ((rtx, enum machine_mode, rtx,
- int (*)(rtx, int)));
-extern rtx get_addr PARAMS ((rtx));
-extern int canon_true_dependence PARAMS ((rtx, enum machine_mode, rtx,
- rtx, int (*)(rtx, int)));
-extern int read_dependence PARAMS ((rtx, rtx));
-extern int anti_dependence PARAMS ((rtx, rtx));
-extern int output_dependence PARAMS ((rtx, rtx));
-extern void mark_constant_function PARAMS ((void));
-extern void init_alias_once PARAMS ((void));
-extern void init_alias_analysis PARAMS ((void));
-extern void end_alias_analysis PARAMS ((void));
-extern rtx addr_side_effect_eval PARAMS ((rtx, int, int));
-
-/* In sibcall.c */
-typedef enum {
- sibcall_use_normal = 1,
- sibcall_use_tail_recursion,
- sibcall_use_sibcall
-} sibcall_use_t;
-
-extern void optimize_sibling_and_tail_recursive_calls PARAMS ((void));
-extern void replace_call_placeholder PARAMS ((rtx, sibcall_use_t));
+extern rtx canon_rtx (rtx);
+extern int true_dependence (const_rtx, enum machine_mode, const_rtx, bool (*)(const_rtx, bool));
+extern rtx get_addr (rtx);
+extern int canon_true_dependence (const_rtx, enum machine_mode, rtx, const_rtx,
+ rtx, bool (*)(const_rtx, bool));
+extern int read_dependence (const_rtx, const_rtx);
+extern int anti_dependence (const_rtx, const_rtx);
+extern int output_dependence (const_rtx, const_rtx);
+extern void init_alias_target (void);
+extern void init_alias_analysis (void);
+extern void end_alias_analysis (void);
+extern bool memory_modified_in_insn_p (const_rtx, const_rtx);
+extern rtx find_base_term (rtx);
+extern rtx gen_hard_reg_clobber (enum machine_mode, unsigned int);
+extern rtx get_reg_known_value (unsigned int);
+extern bool get_reg_known_equiv_p (unsigned int);
#ifdef STACK_REGS
-extern int stack_regs_mentioned PARAMS ((rtx insn));
+extern int stack_regs_mentioned (const_rtx insn);
#endif
/* In toplev.c */
-extern rtx stack_limit_rtx;
+extern GTY(()) rtx stack_limit_rtx;
+
+/* In predict.c */
+extern void invert_br_probabilities (rtx);
+extern bool expensive_function_p (int);
+/* In cfgexpand.c */
+extern void add_reg_br_prob_note (rtx last, int probability);
-/* In regrename.c */
-extern void regrename_optimize PARAMS ((void));
-extern void copyprop_hardreg_forward PARAMS ((void));
+/* In var-tracking.c */
+extern unsigned int variable_tracking_main (void);
-/* In ifcvt.c */
-extern void if_convert PARAMS ((int));
+/* In stor-layout.c. */
+extern void get_mode_bounds (enum machine_mode, int, enum machine_mode,
+ rtx *, rtx *);
+
+/* In loop-unswitch.c */
+extern rtx reversed_condition (rtx);
+extern rtx compare_and_jump_seq (rtx, rtx, enum rtx_code, rtx, int, rtx);
+
+/* In loop-iv.c */
+extern rtx canon_condition (rtx);
+extern void simplify_using_condition (rtx, rtx *, struct bitmap_head_def *);
+
+/* In final.c */
+extern unsigned int compute_alignments (void);
+\f
+struct rtl_hooks
+{
+ rtx (*gen_lowpart) (enum machine_mode, rtx);
+ rtx (*gen_lowpart_no_emit) (enum machine_mode, rtx);
+ rtx (*reg_nonzero_bits) (const_rtx, enum machine_mode, const_rtx, enum machine_mode,
+ unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *);
+ rtx (*reg_num_sign_bit_copies) (const_rtx, enum machine_mode, const_rtx, enum machine_mode,
+ unsigned int, unsigned int *);
+ bool (*reg_truncated_to_mode) (enum machine_mode, const_rtx);
+
+ /* Whenever you add entries here, make sure you adjust rtlhooks-def.h. */
+};
+
+/* Each pass can provide its own. */
+extern struct rtl_hooks rtl_hooks;
+
+/* ... but then it has to restore these. */
+extern const struct rtl_hooks general_rtl_hooks;
+
+/* Keep this for the nonce. */
+#define gen_lowpart rtl_hooks.gen_lowpart
+
+extern void insn_locators_alloc (void);
+extern void insn_locators_free (void);
+extern void insn_locators_finalize (void);
+extern void set_curr_insn_source_location (location_t);
+extern void set_curr_insn_block (tree);
+extern int curr_insn_locator (void);
+extern bool optimize_insn_for_size_p (void);
+extern bool optimize_insn_for_speed_p (void);
-/* In predict.c */
-extern void invert_br_probabilities PARAMS ((rtx));
-extern bool expensive_function_p PARAMS ((int));
#endif /* ! GCC_RTL_H */
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