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| author | Paul Redmond <paul.redmond@intel.com> | 2013-01-04 22:10:16 +0000 |
|---|---|---|
| committer | Paul Redmond <paul.redmond@intel.com> | 2013-01-04 22:10:16 +0000 |
| commit | 874f01e9565541992ef6e9b35e83370533dc4ff1 (patch) | |
| tree | 508e4d08aa24debad5841bc517e7d5bb7ba98034 /llvm/test/Transforms/LoopVectorize/gcc-examples.ll | |
| parent | cad9b53c02fc7f4990afd64c59b2b4e44108fe11 (diff) | |
| download | bcm5719-llvm-874f01e9565541992ef6e9b35e83370533dc4ff1.tar.gz bcm5719-llvm-874f01e9565541992ef6e9b35e83370533dc4ff1.zip | |
Do not vectorize loops with subtraction reductions
Since subtraction does not commute the loop vectorizer incorrectly vectorizes
reductions such as x = A[i] - x.
Disabling for now.
llvm-svn: 171537
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/gcc-examples.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/gcc-examples.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/gcc-examples.ll b/llvm/test/Transforms/LoopVectorize/gcc-examples.ll index 652c2a0d025..e52a3f164a3 100644 --- a/llvm/test/Transforms/LoopVectorize/gcc-examples.ll +++ b/llvm/test/Transforms/LoopVectorize/gcc-examples.ll @@ -241,7 +241,7 @@ define void @example8(i32 %x) nounwind uwtable ssp { } ;CHECK: @example9 -;CHECK: phi <4 x i32> +;CHECK-NOT: phi <4 x i32> ;CHECK: ret i32 define i32 @example9() nounwind uwtable readonly ssp { br label %1 |
