gcc/testsuite/gcc.dg/ipa/propalign-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-early-inlining -fdump-ipa-cp -fdump-tree-optimized" } */
   3
   4 #include <stdint.h>
   5
   6 extern int fail_the_test(void *);
   7 extern int pass_the_test(void *);
   8 extern int diversion (void *);
   9
  10 static int __attribute__((noinline))
  11 foo (void *p)
  12 {
  13   uintptr_t a = (uintptr_t) p;
  14
  15   if (a % 4)
  16     return fail_the_test (p);
  17   else
  18     return pass_the_test (p);
  19 }
  20
  21 int
  22 bar (void)
  23 {
  24   double buf[8] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  25   return foo (&buf);
  26 }
  27
  28
  29 /* { dg-final { scan-ipa-dump "Adjusting alignment of param" "cp" } } */
  30 /* { dg-final { scan-tree-dump-not "fail_the_test" "optimized" } } */
  31 /* { dg-final { cleanup-ipa-dump "cp" } } */
  32 /* { dg-final { cleanup-tree-dump "optimized" } } */