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| author | David Majnemer <david.majnemer@gmail.com> | 2016-07-14 06:58:37 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-07-14 06:58:37 +0000 |
| commit | 17a95aaa7b63bb7f41be61dc5327c9ea46765c6a (patch) | |
| tree | a88f3470c69433de0bba5e755afaefbae784856a /llvm/test/Transforms/InstSimplify/call.ll | |
| parent | 6840f1150f5c550d62aececfa8e061465574deb6 (diff) | |
| download | bcm5719-llvm-17a95aaa7b63bb7f41be61dc5327c9ea46765c6a.tar.gz bcm5719-llvm-17a95aaa7b63bb7f41be61dc5327c9ea46765c6a.zip | |
Simplify llvm.masked.load w/ undef masks
We can always pick the passthru value if the mask is undef: we are
permitted to treat the mask as-if it were filled with zeros.
llvm-svn: 275379
Diffstat (limited to 'llvm/test/Transforms/InstSimplify/call.ll')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/call.ll | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstSimplify/call.ll b/llvm/test/Transforms/InstSimplify/call.ll index e0a071a3bb1..988ec2b71c5 100644 --- a/llvm/test/Transforms/InstSimplify/call.ll +++ b/llvm/test/Transforms/InstSimplify/call.ll @@ -213,6 +213,13 @@ define <8 x i32> @partial_masked_load() { ret <8 x i32> %masked.load } +define <8 x i32> @masked_load_undef_mask(<8 x i32>* %V) { +; CHECK-LABEL: @masked_load_undef_mask( +; CHECK: ret <8 x i32> <i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0> + %masked.load = call <8 x i32> @llvm.masked.load.v8i32.p0v8i32(<8 x i32>* %V, i32 4, <8 x i1> undef, <8 x i32> <i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0>) + ret <8 x i32> %masked.load +} + declare noalias i8* @malloc(i64) declare <8 x i32> @llvm.masked.load.v8i32.p0v8i32(<8 x i32>*, i32, <8 x i1>, <8 x i32>) |
