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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/i386/opt-1.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/i386/opt-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/opt-1.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/opt-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/opt-1.c new file mode 100644 index 000000000..2585236a6 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/opt-1.c @@ -0,0 +1,35 @@ +/* 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 --param min-insn-to-prefetch-ratio=0" } */ +/* { 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. */ +void opt3 (void) __attribute__((__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]; +} + +/* This should not vectorize. */ +void +not_opt3 (void) +{ + int i; + + for (i = 0; i < SIZE; i++) + a[i] = b[i] - c[i]; +} + |