support/regression/tests/gcc-torture-execute-20020213-1.c


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/*
   20020213-1.c from the execute part of the gcc torture suite.
 */

#include <testfwk.h>

#ifdef __SDCC
#pragma std_c99
#endif

#pragma disable_warning 85

/* PR c/5681
   This testcase failed on IA-32 at -O0, because safe_from_p
   incorrectly assumed it is safe to first write into a.a2 b-1
   and then read the original value from it.  */

int bar (float);

struct A {
  float a1;
  int a2;
} a;

int b;

void foo (void)
{
  a.a2 = bar (a.a1);
  a.a2 = a.a2 < b - 1 ? a.a2 : b - 1;
  if (a.a2 >= b - 1)
    ASSERT (0);
}

int bar (float x)
{
  return 2241;
}

void
testTortureExecute (void)
{
  a.a1 = 1.0f;
  b = 3384;
  foo ();
}