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| author | Hao Liu <Hao.Liu@arm.com> | 2014-01-08 03:06:15 +0000 |
|---|---|---|
| committer | Hao Liu <Hao.Liu@arm.com> | 2014-01-08 03:06:15 +0000 |
| commit | 9e0fd27ce7cd1a7b1a316760de7cf4795799af26 (patch) | |
| tree | f1cd511714086451117a7b032671a928d3dbc3d5 /test | |
| parent | 476136e951595540917a6bc6f05817540986b8fb (diff) | |
| download | llvm-9e0fd27ce7cd1a7b1a316760de7cf4795799af26.tar.gz llvm-9e0fd27ce7cd1a7b1a316760de7cf4795799af26.tar.bz2 llvm-9e0fd27ce7cd1a7b1a316760de7cf4795799af26.tar.xz | |
Fix a bug about generating undef operand when optimising shuffle vector and insert element in instruction combine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198730 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/vec_shuffle.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/vec_shuffle.ll b/test/Transforms/InstCombine/vec_shuffle.ll index 3ee43dc63a..a409a911ef 100644 --- a/test/Transforms/InstCombine/vec_shuffle.ll +++ b/test/Transforms/InstCombine/vec_shuffle.ll @@ -228,3 +228,20 @@ define <4 x float> @test15b(<4 x float> %LHS, <4 x float> %RHS) { ret <4 x float> %tmp5 } +define <1 x i32> @test16a(i32 %ele) { +; CHECK-LABEL: @test16a( +; CHECK-NEXT: ret <1 x i32> <i32 2> + %tmp0 = insertelement <2 x i32> <i32 1, i32 undef>, i32 %ele, i32 1 + %tmp1 = shl <2 x i32> %tmp0, <i32 1, i32 1> + %tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <1 x i32> <i32 0> + ret <1 x i32> %tmp2 +} + +define <4 x i8> @test16b(i8 %ele) { +; CHECK-LABEL: @test16b( +; CHECK-NEXT: ret <4 x i8> <i8 2, i8 2, i8 2, i8 2> + %tmp0 = insertelement <8 x i8> <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 undef, i8 1>, i8 %ele, i32 6 + %tmp1 = shl <8 x i8> %tmp0, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1> + %tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 4> + ret <4 x i8> %tmp2 +}
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