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view gcc/testsuite/gcc.dg/Walloc-size-larger-than-17.c @ 144:8f4e72ab4e11

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fix segmentation fault caused by nothing next cur_op to end
author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 21:23:56 +0900
parents 84e7813d76e9
children
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/* PR middle-end/82063 - issues with arguments enabled by -Wall
   { dg-do compile }
   { dg-options "-O -Wno-alloc-size-larger-than -ftrack-macro-expansion=0" } */

typedef __SIZE_TYPE__ size_t;

void sink (void*);

#define T(x) sink (x)

void f (void)
{
  size_t n = 0;
  T (__builtin_malloc (n));

  n = __PTRDIFF_MAX__;
  T (__builtin_malloc (n));

  n += 1;
  T (__builtin_malloc (n));

  n = __SIZE_MAX__ - 1;
  T (__builtin_malloc (n));

  n = __SIZE_MAX__;
  T (__builtin_malloc (n));
}