Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/builtin-bswap-6.c @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 /* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */ | |
| 2 /* { dg-require-effective-target stdint_types } */ | |
| 3 /* { dg-options "-O -fdump-rtl-combine" } */ | |
| 4 | |
| 5 /* The branch cost setting prevents the return value from being | |
| 6 calculated with arithmetic instead of doing a compare. */ | |
| 7 /* { dg-additional-options "-march=z900 -mbranch-cost=0" { target s390*-*-* } } */ | |
| 8 | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #define BS(X) __builtin_bswap32(X) | |
| 12 | |
| 13 int foo1 (uint32_t a) | |
| 14 { | |
| 15 if (BS (a) == 0xA0000) | |
| 16 return 1; | |
| 17 return 0; | |
| 18 } | |
| 19 | |
| 20 int foo2 (uint32_t a) | |
| 21 { | |
| 22 if (BS (a) != 0xA0000) | |
| 23 return 1; | |
| 24 return 0; | |
| 25 } | |
| 26 | |
| 27 int foo3 (uint32_t a, uint32_t b) | |
| 28 { | |
| 29 if (BS (a) == BS (b)) | |
| 30 return 1; | |
| 31 return 0; | |
| 32 } | |
| 33 | |
| 34 int foo4 (uint32_t a, uint32_t b) | |
| 35 { | |
| 36 if (BS (a) != BS (b)) | |
| 37 return 1; | |
| 38 return 0; | |
| 39 } | |
| 40 | |
| 41 /* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */ |