1/* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */ 2/* { dg-require-effective-target stdint_types } */ 3/* { dg-options "-O2 -fdump-rtl-combine" } */ 4/* { dg-additional-options "-march=z900" { target s390-*-* } } */ 5 6/* The test is similiar to builtin-bswap-6.c but returns 1/2 instead 7 of 0/1 to prevent GCC from calculating the return value with 8 arithmetic instead of a comparison. This requires the optimization 9 level to be bumped up to -O2 at least for x86_64. */ 10 11#include <stdint.h> 12 13#define BS(X) __builtin_bswap32(X) 14 15int foo1 (uint32_t a) 16{ 17 if (BS (a) == 0xA0000) 18 return 1; 19 return 2; 20} 21 22int foo2 (uint32_t a) 23{ 24 if (BS (a) != 0xA0000) 25 return 1; 26 return 2; 27} 28 29int foo3 (uint32_t a, uint32_t b) 30{ 31 if (BS (a) == BS (b)) 32 return 1; 33 return 2; 34} 35 36int foo4 (uint32_t a, uint32_t b) 37{ 38 if (BS (a) != BS (b)) 39 return 1; 40 return 2; 41} 42 43/* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */ 44/* { dg-final { cleanup-rtl-dump "combine" } } */ 45