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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c b/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c new file mode 100644 index 000000000..7337e99b1 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c @@ -0,0 +1,36 @@ +/* { dg-require-effective-target stdint_types } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-options "-O2 -mcpu=power5" } */ + +/* This is a clone of gcc-dg/optimize-bswapdi-1.c, redone to use load and stores + to test whether lwbrx/stwbrx is generated for normal power systems. */ + +#include <stdint.h> +#define __const_swab64(x) ((uint64_t)( \ + (((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \ + (((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ + (((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ + (((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ + (((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ + (((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ + (((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ + (((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56))) + + +/* This byte swap implementation is used by the Linux kernel and the + GNU C library. */ + +uint64_t +swap64_load (uint64_t *in) +{ + return __const_swab64 (*in); +} + +void +swap64_store (uint64_t *out, uint64_t in) +{ + *out = __const_swab64 (in); +} + +/* { dg-final { scan-assembler-times "lwbrx" 2 } } */ +/* { dg-final { scan-assembler-times "stwbrx" 2 } } */ |