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| author | Hao Liu <Hao.Liu@arm.com> | 2014-04-29 01:50:36 +0000 |
|---|---|---|
| committer | Hao Liu <Hao.Liu@arm.com> | 2014-04-29 01:50:36 +0000 |
| commit | cf37110920cb1cc801ea8502fa05cb12aee388c0 (patch) | |
| tree | f1d0f2200c31a54e4bdb9f0d505ece448efe141b /llvm/test/CodeGen/ARM64 | |
| parent | 90d09146e0f89fac7a4bb1d2e29459766fb38165 (diff) | |
| download | bcm5719-llvm-cf37110920cb1cc801ea8502fa05cb12aee388c0.tar.gz bcm5719-llvm-cf37110920cb1cc801ea8502fa05cb12aee388c0.zip | |
[ARM64]Fix a bug when lowering shuffle vector to an EXT instruction.
E.g. Mask like <-1, -1, 1, ...> will generate incorrect EXT index.
llvm-svn: 207485
Diffstat (limited to 'llvm/test/CodeGen/ARM64')
| -rw-r--r-- | llvm/test/CodeGen/ARM64/ext.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM64/ext.ll b/llvm/test/CodeGen/ARM64/ext.ll index 57d6e0c67b1..d368eef172e 100644 --- a/llvm/test/CodeGen/ARM64/ext.ll +++ b/llvm/test/CodeGen/ARM64/ext.ll @@ -65,6 +65,15 @@ define <8 x i8> @test_vextd_undef(<8 x i8>* %A, <8 x i8>* %B) nounwind { ret <8 x i8> %tmp3 } +define <8 x i8> @test_vextd_undef2(<8 x i8>* %A, <8 x i8>* %B) nounwind { +;CHECK-LABEL: test_vextd_undef2: +;CHECK: {{ext.8b.*#6}} + %tmp1 = load <8 x i8>* %A + %tmp2 = load <8 x i8>* %B + %tmp3 = shufflevector <8 x i8> %tmp1, <8 x i8> %tmp2, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 2, i32 3, i32 4, i32 5> + ret <8 x i8> %tmp3 +} + define <16 x i8> @test_vextRq_undef(<16 x i8>* %A, <16 x i8>* %B) nounwind { ;CHECK-LABEL: test_vextRq_undef: ;CHECK: {{ext.16b.*#7}} @@ -74,6 +83,14 @@ define <16 x i8> @test_vextRq_undef(<16 x i8>* %A, <16 x i8>* %B) nounwind { ret <16 x i8> %tmp3 } +define <8 x i16> @test_vextRq_undef2(<8 x i16>* %A) nounwind { +;CHECK-LABEL: test_vextRq_undef2: +;CHECK: {{ext.16b.*#10}} + %tmp1 = load <8 x i16>* %A + %vext = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 1, i32 2, i32 3, i32 4> + ret <8 x i16> %vext; +} + ; Tests for ReconstructShuffle function. Indices have to be carefully ; chosen to reach lowering phase as a BUILD_VECTOR. |
