[thirdparty/gcc.git] / gcc / testsuite / gcc.dg / Walloc-size-larger-than-5.c

/* PR middle-end/82063 - issues with arguments enabled by -Wall
   { dg-do compile }
   { dg-require-effective-target size32plus }
   { dg-options "-O -Walloc-size-larger-than=1MB -ftrack-macro-expansion=0" } */

void sink (void*);

#define T(x) sink (x)

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

  n = 1000 * 1000;   /* 1 megabyte (MB) */
  T (__builtin_malloc (n));

  n += 1;
  T (__builtin_malloc (n));   /* { dg-warning "argument 1 value .1000001. exceeds maximum object size 1000000" } */

  n = __PTRDIFF_MAX__;
  T (__builtin_malloc (n));   /* { dg-warning "exceeds maximum object size 1000000" } */

  n = __SIZE_MAX__;
  T (__builtin_malloc (n));   /* { dg-warning "exceeds maximum object size 1000000" } */
}
Commit	Line	Data
d258f4aa MS	1	/* PR middle-end/82063 - issues with arguments enabled by -Wall
d258f4aa MS	2	{ dg-do compile }
f4a14e09	3	{ dg-require-effective-target size32plus }
d258f4aa MS	4	{ dg-options "-O -Walloc-size-larger-than=1MB -ftrack-macro-expansion=0" } */
	5
	6	void sink (void*);
	7
	8	#define T(x) sink (x)
	9
	10	void f (void)
	11	{
	12	__SIZE_TYPE__ n = 0;
	13	T (__builtin_malloc (n));
	14
	15	n = 1000 * 1000; /* 1 megabyte (MB) */
	16	T (__builtin_malloc (n));
	17
	18	n += 1;
	19	T (__builtin_malloc (n)); /* { dg-warning "argument 1 value .1000001. exceeds maximum object size 1000000" } */
	20
	21	n = __PTRDIFF_MAX__;
	22	T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size 1000000" } */
	23
	24	n = __SIZE_MAX__;
	25	T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size 1000000" } */
	26	}