Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / rs6000 / darwin-vecsave.asm

diff --git a/gcc/config/rs6000/darwin-vecsave.asm b/gcc/config/rs6000/darwin-vecsave.asm
new file mode 100644 (file)
index 0000000..0a46be2
--- /dev/null
+++ b/gcc/config/rs6000/darwin-vecsave.asm
@@ -0,0 +1,155 @@
+/*  This file contains the vector save and restore routines.
+ *
+ *   Copyright (C) 2004, 2009 Free Software Foundation, Inc.
+ * 
+ * This file 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 3, or (at your option) any
+ * later version.
+ * 
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * Under Section 7 of GPL version 3, you are granted additional
+ * permissions described in the GCC Runtime Library Exception, version
+ * 3.1, as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License and
+ * a copy of the GCC Runtime Library Exception along with this program;
+ * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */ 
+
+/* Vector save/restore routines for Darwin.  Note that each vector
+   save/restore requires 2 instructions (8 bytes.)
+
+   THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE
+   ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31,
+   for example.  For FP reg saves/restores, it takes one instruction
+   (4 bytes) to do the operation; for Vector regs, 2 instructions are
+   required (8 bytes.).   */
+
+       .machine ppc7400
+.text
+       .align 2
+
+.private_extern saveVEC
+saveVEC:
+       li r11,-192
+       stvx v20,r11,r0
+       li r11,-176
+       stvx v21,r11,r0
+       li r11,-160
+       stvx v22,r11,r0
+       li r11,-144
+       stvx v23,r11,r0
+       li r11,-128
+       stvx v24,r11,r0
+       li r11,-112
+       stvx v25,r11,r0
+       li r11,-96
+       stvx v26,r11,r0
+       li r11,-80
+       stvx v27,r11,r0
+       li r11,-64
+       stvx v28,r11,r0
+       li r11,-48
+       stvx v29,r11,r0
+       li r11,-32
+       stvx v30,r11,r0
+       li r11,-16
+       stvx v31,r11,r0
+       blr
+
+.private_extern restVEC
+restVEC:
+       li r11,-192
+       lvx v20,r11,r0
+       li r11,-176
+       lvx v21,r11,r0
+       li r11,-160
+       lvx v22,r11,r0
+       li r11,-144
+       lvx v23,r11,r0
+       li r11,-128
+       lvx v24,r11,r0
+       li r11,-112
+       lvx v25,r11,r0
+       li r11,-96
+       lvx v26,r11,r0
+       li r11,-80
+       lvx v27,r11,r0
+       li r11,-64
+       lvx v28,r11,r0
+       li r11,-48
+       lvx v29,r11,r0
+       li r11,-32
+       lvx v30,r11,r0
+       li r11,-16
+       lvx v31,r11,r0
+       blr
+
+/* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11.  */
+
+.private_extern saveVEC_vr11
+saveVEC_vr11:
+       li r11,-192
+       stvx v20,r11,r0
+       li r11,-176
+       stvx v21,r11,r0
+       li r11,-160
+       stvx v22,r11,r0
+       li r11,-144
+       stvx v23,r11,r0
+       li r11,-128
+       stvx v24,r11,r0
+       li r11,-112
+       stvx v25,r11,r0
+       li r11,-96
+       stvx v26,r11,r0
+       li r11,-80
+       stvx v27,r11,r0
+       li r11,-64
+       stvx v28,r11,r0
+       li r11,-48
+       stvx v29,r11,r0
+       li r11,-32
+       stvx v30,r11,r0
+       li r11,-16
+       stvx v31,r11,r0
+       mfspr r11,VRsave
+       blr
+
+/* As restVec, but the original VRsave value passed in R10.  */
+
+.private_extern restVEC_vr10
+restVEC_vr10:
+       li r11,-192
+       lvx v20,r11,r0
+       li r11,-176
+       lvx v21,r11,r0
+       li r11,-160
+       lvx v22,r11,r0
+       li r11,-144
+       lvx v23,r11,r0
+       li r11,-128
+       lvx v24,r11,r0
+       li r11,-112
+       lvx v25,r11,r0
+       li r11,-96
+       lvx v26,r11,r0
+       li r11,-80
+       lvx v27,r11,r0
+       li r11,-64
+       lvx v28,r11,r0
+       li r11,-48
+       lvx v29,r11,r0
+       li r11,-32
+       lvx v30,r11,r0
+       li r11,-16
+       lvx v31,r11,r0
+                               /* restore VRsave from R10.  */
+       mtspr VRsave,r10
+       blr