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