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comparison gcc/testsuite/gcc.dg/Walloc-size-larger-than-10.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* PR middle-end/82063 - issues with arguments enabled by -Wall
2 { dg-do compile { target lp64 } }
3 { dg-options "-O -Walloc-size-larger-than=1PiB -ftrack-macro-expansion=0" } */
4
5 typedef __SIZE_TYPE__ size_t;
6
7 void sink (void*);
8
9 #define T(x) sink (x)
10
11 void f (void)
12 {
13 size_t n = 0;
14 T (__builtin_malloc (n));
15
16 n = (size_t)1024 * 1024 * 1024 * 1024 * 1024; /* 1 pebibyte (PiB) */
17 T (__builtin_malloc (n));
18
19 n += 1;
20 T (__builtin_malloc (n)); /* { dg-warning "argument 1 value .1125899906842625. exceeds maximum object size 1125899906842624" } */
21
22 n = __PTRDIFF_MAX__;
23 T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size" } */
24
25 n = __SIZE_MAX__;
26 T (__builtin_malloc (n)); /* { dg-warning "exceeds maximum object size" } */
27 }