diff options
Diffstat (limited to 'test/Transforms/InstCombine/vec_shuffle.ll')
| -rw-r--r-- | test/Transforms/InstCombine/vec_shuffle.ll | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/test/Transforms/InstCombine/vec_shuffle.ll b/test/Transforms/InstCombine/vec_shuffle.ll index aaaee3f..29adc1e 100644 --- a/test/Transforms/InstCombine/vec_shuffle.ll +++ b/test/Transforms/InstCombine/vec_shuffle.ll @@ -1,20 +1,25 @@ -; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep vector_shuffle -; END. +; RUN: opt < %s -instcombine -S | FileCheck %s %T = type <4 x float> define %T @test1(%T %v1) { +; CHECK: @test1 +; CHECK: ret %T %v1 %v2 = shufflevector %T %v1, %T undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3> ret %T %v2 } define %T @test2(%T %v1) { +; CHECK: @test2 +; CHECK: ret %T %v1 %v2 = shufflevector %T %v1, %T %v1, <4 x i32> <i32 0, i32 5, i32 2, i32 7> ret %T %v2 } define float @test3(%T %A, %T %B, float %f) { +; CHECK: @test3 +; CHECK: ret float %f %C = insertelement %T %A, float %f, i32 0 %D = shufflevector %T %C, %T %B, <4 x i32> <i32 5, i32 0, i32 2, i32 7> %E = extractelement %T %D, i32 1 @@ -22,18 +27,27 @@ define float @test3(%T %A, %T %B, float %f) { } define i32 @test4(<4 x i32> %X) { +; CHECK: @test4 +; CHECK-NEXT: extractelement +; CHECK-NEXT: ret %tmp152.i53899.i = shufflevector <4 x i32> %X, <4 x i32> undef, <4 x i32> zeroinitializer %tmp34 = extractelement <4 x i32> %tmp152.i53899.i, i32 0 ret i32 %tmp34 } define i32 @test5(<4 x i32> %X) { +; CHECK: @test5 +; CHECK-NEXT: extractelement +; CHECK-NEXT: ret %tmp152.i53899.i = shufflevector <4 x i32> %X, <4 x i32> undef, <4 x i32> <i32 3, i32 2, i32 undef, i32 undef> %tmp34 = extractelement <4 x i32> %tmp152.i53899.i, i32 0 ret i32 %tmp34 } define float @test6(<4 x float> %X) { +; CHECK: @test6 +; CHECK-NEXT: extractelement +; CHECK-NEXT: ret %X1 = bitcast <4 x float> %X to <4 x i32> %tmp152.i53899.i = shufflevector <4 x i32> %X1, <4 x i32> undef, <4 x i32> zeroinitializer %tmp152.i53900.i = bitcast <4 x i32> %tmp152.i53899.i to <4 x float> @@ -42,6 +56,34 @@ define float @test6(<4 x float> %X) { } define <4 x float> @test7(<4 x float> %tmp45.i) { +; CHECK: @test7 +; CHECK-NEXT: ret %T %tmp45.i %tmp1642.i = shufflevector <4 x float> %tmp45.i, <4 x float> undef, <4 x i32> < i32 0, i32 1, i32 6, i32 7 > ret <4 x float> %tmp1642.i } + +; This should turn into a single shuffle. +define <4 x float> @test8(<4 x float> %tmp, <4 x float> %tmp1) { +; CHECK: @test8 +; CHECK-NEXT: shufflevector +; CHECK-NEXT: ret + %tmp4 = extractelement <4 x float> %tmp, i32 1 + %tmp2 = extractelement <4 x float> %tmp, i32 3 + %tmp1.upgrd.1 = extractelement <4 x float> %tmp1, i32 0 + %tmp128 = insertelement <4 x float> undef, float %tmp4, i32 0 + %tmp130 = insertelement <4 x float> %tmp128, float undef, i32 1 + %tmp132 = insertelement <4 x float> %tmp130, float %tmp2, i32 2 + %tmp134 = insertelement <4 x float> %tmp132, float %tmp1.upgrd.1, i32 3 + ret <4 x float> %tmp134 +} + +; Test fold of two shuffles where the first shuffle vectors inputs are a +; different length then the second. +define <4 x i8> @test9(<16 x i8> %tmp6) nounwind { +; CHECK: @test9 +; CHECK-NEXT: shufflevector +; CHECK-NEXT: ret + %tmp7 = shufflevector <16 x i8> %tmp6, <16 x i8> undef, <4 x i32> < i32 13, i32 9, i32 4, i32 13 > ; <<4 x i8>> [#uses=1] + %tmp9 = shufflevector <4 x i8> %tmp7, <4 x i8> undef, <4 x i32> < i32 3, i32 1, i32 2, i32 0 > ; <<4 x i8>> [#uses=1] + ret <4 x i8> %tmp9 +}
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