diff options
| author | Ben Cheng <bccheng@google.com> | 2013-03-28 11:14:20 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2013-03-28 12:40:33 -0700 |
| commit | af0c51ac87ab2a87caa03fa108f0d164987a2764 (patch) | |
| tree | 4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c | |
| parent | d87cae247d39ebf4f5a6bf25c932a14d2fdb9384 (diff) | |
| download | toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.gz toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.bz2 toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.zip | |
[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c')
| -rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c new file mode 100644 index 000000000..b34fafc52 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/pr53397-2.c @@ -0,0 +1,28 @@ +/* Not prefetching when the step is loop variant. */ +/* { dg-do compile } */ +/* { dg-require-effective-target sse2 } */ +/* { dg-options "-O3 -msse2 -fprefetch-loop-arrays -fdump-tree-aprefetch-details --param min-insn-to-prefetch-ratio=3 --param simultaneous-prefetches=10 -fdump-tree-aprefetch-details" } */ + +double data[16384]; +void donot_prefetch_when_non_constant_step_is_variant(int step, int n) +{ + int a; + int b; + for (a = 1; a < step; a++,step*=2) { + for (b = 0; b < n; b += 2 * step) { + + int i = 2*(b + a); + int j = 2*(b + a + step); + + + data[j] = data[i]; + data[j+1] = data[i+1]; + } + } +} + +/* { dg-final { scan-tree-dump "Not prefetching" "aprefetch" } } */ +/* { dg-final { scan-tree-dump "loop variant step" "aprefetch" } } */ + +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ + |