Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.c-torture/execute/pr61306-1.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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#ifdef __INT32_TYPE__ typedef __INT32_TYPE__ int32_t; #else typedef int int32_t; #endif #ifdef __UINT32_TYPE__ typedef __UINT32_TYPE__ uint32_t; #else typedef unsigned uint32_t; #endif #define __fake_const_swab32(x) ((uint32_t)( \ (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \ (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \ (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \ (( (int32_t)(x) & (int32_t)0xff000000UL) >> 24))) /* Previous version of bswap optimization failed to consider sign extension and as a result would replace an expression *not* doing a bswap by a bswap. */ __attribute__ ((noinline, noclone)) uint32_t fake_bswap32 (uint32_t in) { return __fake_const_swab32 (in); } int main(void) { if (sizeof (int32_t) * __CHAR_BIT__ != 32) return 0; if (sizeof (uint32_t) * __CHAR_BIT__ != 32) return 0; if (fake_bswap32 (0x87654321) != 0xffffff87) __builtin_abort (); return 0; }