diff options
Diffstat (limited to 'test/Transforms/InstCombine/x86-avx2.ll')
| -rw-r--r-- | test/Transforms/InstCombine/x86-avx2.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/x86-avx2.ll b/test/Transforms/InstCombine/x86-avx2.ll index 4c13b4c6ae74c..f4045f788e2d2 100644 --- a/test/Transforms/InstCombine/x86-avx2.ll +++ b/test/Transforms/InstCombine/x86-avx2.ll @@ -81,5 +81,29 @@ define <8 x float> @undef_test_vpermps(<8 x float> %a0) { ret <8 x float> %a } +; Verify simplify demanded elts. + +define <8 x i32> @elts_test_vpermd(<8 x i32> %a0, i32 %a1) { +; CHECK-LABEL: @elts_test_vpermd( +; CHECK-NEXT: ret <8 x i32> %a0 +; + %1 = insertelement <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>, i32 %a1, i32 0 + %2 = tail call <8 x i32> @llvm.x86.avx2.permd(<8 x i32> %a0, <8 x i32> %1) + %3 = shufflevector <8 x i32> %2, <8 x i32> undef, <8 x i32> <i32 undef, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> + ret <8 x i32> %3 +} + +define <8 x float> @elts_test_vpermps(<8 x float> %a0, <8 x i32> %a1) { +; CHECK-LABEL: @elts_test_vpermps( +; CHECK-NEXT: [[TMP1:%.*]] = tail call <8 x float> @llvm.x86.avx2.permps(<8 x float> %a0, <8 x i32> %a1) +; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <8 x float> [[TMP1]], <8 x float> undef, <8 x i32> zeroinitializer +; CHECK-NEXT: ret <8 x float> [[TMP2]] +; + %1 = insertelement <8 x i32> %a1, i32 0, i32 7 + %2 = tail call <8 x float> @llvm.x86.avx2.permps(<8 x float> %a0, <8 x i32> %1) + %3 = shufflevector <8 x float> %2, <8 x float> undef, <8 x i32> zeroinitializer + ret <8 x float> %3 +} + declare <8 x i32> @llvm.x86.avx2.permd(<8 x i32>, <8 x i32>) declare <8 x float> @llvm.x86.avx2.permps(<8 x float>, <8 x i32>) |