derek.holloway
7502bf64a4
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35 lines
1.7 KiB
LLVM
35 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -passes=instcombine -S < %s | FileCheck %s
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define void @test_undef(ptr %in_ptr, ptr %out_ptr) {
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; CHECK-LABEL: define void @test_undef(
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; CHECK-SAME: ptr [[IN_PTR:%.*]], ptr [[OUT_PTR:%.*]]) {
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; CHECK-NEXT: [[A:%.*]] = load <4 x float>, ptr [[IN_PTR]], align 16
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; CHECK-NEXT: [[D:%.*]] = shufflevector <4 x float> [[A]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: store <4 x float> [[D]], ptr [[OUT_PTR]], align 16
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; CHECK-NEXT: ret void
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;
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%A = load <4 x float>, ptr %in_ptr, align 16
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%B = shufflevector <4 x float> %A, <4 x float> undef, <4 x i32> <i32 0, i32 0, i32 undef, i32 undef>
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%C = shufflevector <4 x float> %B, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 4, i32 undef>
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%D = shufflevector <4 x float> %C, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
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store <4 x float> %D, ptr %out_ptr
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ret void
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}
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define void @test_poison(ptr %in_ptr, ptr %out_ptr) {
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; CHECK-LABEL: define void @test_poison(
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; CHECK-SAME: ptr [[IN_PTR:%.*]], ptr [[OUT_PTR:%.*]]) {
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; CHECK-NEXT: [[A:%.*]] = load <4 x float>, ptr [[IN_PTR]], align 16
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; CHECK-NEXT: [[D:%.*]] = shufflevector <4 x float> [[A]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: store <4 x float> [[D]], ptr [[OUT_PTR]], align 16
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; CHECK-NEXT: ret void
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;
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%A = load <4 x float>, ptr %in_ptr, align 16
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%B = shufflevector <4 x float> %A, <4 x float> poison, <4 x i32> <i32 0, i32 0, i32 undef, i32 undef>
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%C = shufflevector <4 x float> %B, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 4, i32 undef>
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%D = shufflevector <4 x float> %C, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
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store <4 x float> %D, ptr %out_ptr
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ret void
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}
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