view gcc/testsuite/gcc.dg/Walloca-7.c @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-do compile } */
/* { dg-require-effective-target alloca } */
/* { dg-options "-Walloca -O0" } */

extern void f(void *);

void foo(void)
{
  // Test that strict -Walloca works even without optimization.
  f (__builtin_alloca(500)); // { dg-warning "use of 'alloca'" }
}

void bar(void)
{
  // Test that we warn on alloca() calls, not just __builtin_alloca calls.
  extern void *alloca(__SIZE_TYPE__);
  f (alloca (123)); // { dg-warning "use of 'alloca'" }
}