Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/lto/pr61886_0.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-lto-do link } */ /* { dg-lto-options { { -flto -O2 -Werror } } } */ typedef __SIZE_TYPE__ size_t; typedef struct _IO_FILE FILE; #define STRING1(a) #a #define STRING2(a) STRING1(a) extern size_t fread (void *__restrict __ptr, size_t __ptrlen, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ (STRING2(__USER_LABEL_PREFIX__) "fread") __attribute__ ((__warn_unused_result__)); extern size_t fread_warn (void *__restrict __ptr, size_t __ptrlen, size_t __size, size_t __n, FILE *__restrict __stream) __asm__ (STRING2(__USER_LABEL_PREFIX__) "fread") __attribute__ ((__warn_unused_result__)) __attribute__((__warning__ ("fread called with bigger size * nmemb than length " "of destination buffer"))); extern __inline __attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__)) __attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__)) size_t local_fread (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) { if (__builtin_object_size (__ptr, 0) != (size_t) -1) { if (!__builtin_constant_p (__size) || !__builtin_constant_p (__n) || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2))) return fread (__ptr, __builtin_object_size (__ptr, 0), __size, __n, __stream); if (__size * __n > __builtin_object_size (__ptr, 0)) return fread_warn (__ptr, __builtin_object_size (__ptr, 0), __size, __n, __stream); } } volatile size_t nmemb; FILE *fp; int main () { char file_contents[4096]; /* We shouldn't get this resolved to a call to fread_warn. */ return local_fread (file_contents, 1, nmemb, fp); }