Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/builtin-memchr-2.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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/* Verify that memchr calls with the address of a constant character are folded as expected even at -O0. { dg-do compile } { dg-options "-O0 -Wall -fdump-tree-gimple" } */ typedef __SIZE_TYPE__ size_t; typedef __WCHAR_TYPE__ wchar_t; extern void* memchr (const void*, int, size_t); extern int printf (const char*, ...); extern void abort (void); #define A(expr) \ ((expr) \ ? (void)0 \ : (printf ("assertion failed on line %i: %s\n", \ __LINE__, #expr), \ abort ())) const char nul = 0; const char cha = 'a'; const struct { char c; } snul = { 0 }, schb = { 'b' }, sarr[] = { { 0 }, { 'c' } }; void test_memchr_cst_char (void) { A (&nul == memchr (&nul, 0, 1)); A (!memchr (&nul, 'a', 1)); A (&cha == memchr (&cha, 'a', 1)); A (!memchr (&cha, 0, 1)); A (&snul.c == memchr (&snul.c, 0, 1)); A (!memchr (&snul.c, 'a', 1)); A (&schb.c == memchr (&schb.c, 'b', 1)); A (!memchr (&schb.c, 0, 1)); A (&sarr[0].c == memchr (&sarr[0].c, 0, 1)); A (!memchr (&sarr[0].c, 'a', 1)); A (&sarr[1].c == memchr (&sarr[1].c, 'c', 1)); A (!memchr (&sarr[1].c, 0, 1)); } /* { dg-final { scan-tree-dump-not "abort" "gimple" } } */