| /* { dg-do compile { target arm*-*-* alpha*-*-* ia64*-*-* i?86-*-* x86_64-*-* s390x-*-* powerpc*-*-* rs6000-*-* } } */ |
| /* { dg-require-effective-target stdint_types } */ |
| /* { dg-require-effective-target lp64 } */ |
| /* { dg-options "-O2 -fdump-rtl-combine" } */ |
| |
| /* The test is similiar to builtin-bswap-7.c but returns 1/2 instead |
| of 0/1 to prevent GCC from calculating the return value with |
| arithmetic instead of a comparison. This requires the optimization |
| level to be bumped up to -O2 at least for x86_64. */ |
| |
| #include <stdint.h> |
| |
| #define BS(X) __builtin_bswap64(X) |
| |
| int foo1 (uint64_t a) |
| { |
| if (BS (a) == 0xA00000000) |
| return 1; |
| return 2; |
| } |
| |
| int foo2 (uint64_t a) |
| { |
| if (BS (a) != 0xA00000000) |
| return 1; |
| return 2; |
| } |
| |
| int foo3 (uint64_t a, uint64_t b) |
| { |
| if (BS (a) == BS (b)) |
| return 1; |
| return 2; |
| } |
| |
| int foo4 (uint64_t a, uint64_t b) |
| { |
| if (BS (a) != BS (b)) |
| return 1; |
| return 2; |
| } |
| |
| /* { dg-final { scan-rtl-dump-not "bswapdi" "combine" } } */ |
