diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/insert-const-shuf.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/insert-const-shuf.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/insert-const-shuf.ll b/llvm/test/Transforms/InstCombine/insert-const-shuf.ll index 60f272f1096..3e301e336af 100644 --- a/llvm/test/Transforms/InstCombine/insert-const-shuf.ll +++ b/llvm/test/Transforms/InstCombine/insert-const-shuf.ll @@ -26,6 +26,15 @@ define <4 x float> @twoInserts(<4 x float> %x) { ret <4 x float> %ins2 } +define <4 x i32> @shuffleRetain(<4 x i32> %base) { +; CHECK-LABEL: @shuffleRetain( +; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x i32> %base, <4 x i32> <i32 undef, i32 undef, i32 undef, i32 1>, <4 x i32> <i32 1, i32 2, i32 undef, i32 7> +; CHECK-NEXT: ret <4 x i32> [[SHUF]] +; + %shuf = shufflevector <4 x i32> %base, <4 x i32> <i32 4, i32 3, i32 2, i32 1>, <4 x i32> <i32 1, i32 2, i32 undef, i32 7> + ret <4 x i32> %shuf +} + ; TODO: Transform an arbitrary shuffle with constant into a shuffle that is equivalant to a vector select. define <4 x float> @disguisedSelect(<4 x float> %x) { |
