File: pr23848-1.c

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gcc-arm-none-eabi 15%3A14.2.rel1-1
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/* PR middle-end/23848 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
/* { dg-require-effective-target alloca } */

void bar1 (char *, int);
void foo1 (int size)
{
  char temp[size];
  temp[size-1] = '\0';
  bar1 (temp, size);
}

void bar2 (char *, char *, char *, char *, int);
void foo2 (int size)
{
  char temp[size];
  temp[size-1] = '\0';
  {
    char temp2[size];
    {
      char temp3[size];
      {
	char temp4[size];
	bar2 (temp, temp2, temp3, temp4, size);
      }
    }
  }
}

/* { dg-final { scan-tree-dump-not "__builtin_stack_save" "optimized"} } */
/* { dg-final { scan-tree-dump-not "__builtin_stack_restore" "optimized"} } */