support/regression/tests/gcc-torture-execute-20030913-1.c


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/*
   20030913-1.c from the execute part of the gcc torture tests.
 */

#include <testfwk.h>

#ifdef __SDCC
#pragma std_c99
#endif

/* Assignments via pointers pointing to global variables were being killed
   by SSA-DCE.  Test contributed by Paul Brook <paul@nowt.org>  */

int globl;

void
fn2(int ** q)
{
  *q = &globl;
}

void foo(void)
{
  int *p;

  fn2(&p);

  *p=42;
}

void
testTortureExecute (void)
{
  foo();
  ASSERT(globl == 42);
  return;
}