gcc/testsuite/gcc.dg/tree-ssa/20040713-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Os" } */
   3
   4 /* Extracted from PR 16443.  Contributed by Volker Reichelt.
   5    Scanning of __asm__ operands wasn't considering call-clobbered
   6    variables discovered before the aliasing pass.  This was causing a
   7    crash in verify_ssa() because 'p' was not being given an SSA_NAME.  */
   8
   9 void foo(char *p)
  10 {
  11     __asm__ ("" ::: "memory");
  12 }
  13
  14 void bar()
  15 {
  16     static char *p;
  17     foo(p);
  18 }