Imported gcc-4.4.3

[msp430-gcc.git] / libmudflap / testsuite / libmudflap.c / pass23-frag.c

diff --git a/libmudflap/testsuite/libmudflap.c/pass23-frag.c b/libmudflap/testsuite/libmudflap.c/pass23-frag.c
new file mode 100644 (file)
index 0000000..f27c223
--- /dev/null
+++ b/libmudflap/testsuite/libmudflap.c/pass23-frag.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+int main ()
+{
+struct foo {
+  int part1: 8;
+  int nothing : 1;
+  int part2 : 5;
+  int lots_more_nothing : 3;
+  int some_padding; /* for 64-bit hosts */
+  float some_more_nothing;
+  double yet_more_nothing;
+};
+
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
+
+struct foo* q = (struct foo *) malloc (offsetof (struct foo, some_more_nothing));
+q->nothing = 1; /* touch q */ 
+/* The RHS of the following expression is meant to trigger a
+   fold-const.c mapping the expression to a BIT_FIELD_REF.  It glues
+   together the accesses to the two non-neighbouring bitfields into a
+   single bigger boolean test. */
+q->lots_more_nothing = (q->part1 == 13 && q->part2 == 7);
+free (q);
+
+
+return 0;
+}