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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/i386/opt-2.c | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.target/i386/opt-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/opt-2.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/opt-2.c b/gcc/testsuite/gcc.target/i386/opt-2.c new file mode 100644 index 000000000..d2791e071 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/opt-2.c @@ -0,0 +1,38 @@ +/* Test the attribute((optimize)) really works. Do this test by checking + whether we vectorize a simple loop. */ +/* { dg-do compile } */ +/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8" } */ +/* { dg-final { scan-assembler "prefetcht0" } } */ +/* { dg-final { scan-assembler "addps" } } */ +/* { dg-final { scan-assembler "subss" } } */ + +#define SIZE 10240 +float a[SIZE] __attribute__((__aligned__(32))); +float b[SIZE] __attribute__((__aligned__(32))); +float c[SIZE] __attribute__((__aligned__(32))); + +/* This should vectorize. */ +#pragma GCC push_options +#pragma GCC optimize (3, "unroll-all-loops", "-fprefetch-loop-arrays") + +void +opt3 (void) +{ + int i; + + for (i = 0; i < SIZE; i++) + a[i] = b[i] + c[i]; +} + +#pragma GCC pop_options + +/* This should not vectorize. */ +void +not_opt3 (void) +{ + int i; + + for (i = 0; i < SIZE; i++) + a[i] = b[i] - c[i]; +} + |