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| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c new file mode 100644 index 000000000..9dcd824c6 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-3.c @@ -0,0 +1,36 @@ +/* { dg-require-effective-target stdint_types } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-options "-O2 -mcpu=power7" } */ + +/* This is a clone of gcc-dg/optimize-bswapdi-1.c, redone to use load and stores + to test whether ldbrx/stdbrx is generated for power7. */ + +#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 "ldbrx" } } */ +/* { dg-final { scan-assembler "stdbrx" } } */ |