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llvm-project/llvm/test/Transforms/SLPVectorizer/X86/pr42022.ll
Philip Reames 7d6e8f2a96 [slp] Delete dead scalar instructions feeding vectorized instructions 
If we vectorize a e.g. store, we leave around a bunch of getelementptrs for the individual scalar stores which we removed. We can go ahead and delete them as well.

This is purely for test output quality and readability. It should have no effect in any sane pipeline.

Differential Revision: https://reviews.llvm.org/D122493
2022-03-28 20:10:13 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -S -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; See https://reviews.llvm.org/D70068 and https://reviews.llvm.org/D70587 for context
; Checks that vector insertvalues into the struct become SLP seeds.
define { <2 x float>, <2 x float> } @StructOfVectors(float *%Ptr) {
; CHECK-LABEL: @StructOfVectors(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds float, float* [[PTR:%.*]], i64 0
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[GEP0]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fadd fast <4 x float> [[TMP2]], <float 1.100000e+01, float 1.200000e+01, float 1.300000e+01, float 1.400000e+01>
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x float> [[TMP3]], i32 0
; CHECK-NEXT: [[VECIN0:%.*]] = insertelement <2 x float> undef, float [[TMP4]], i64 0
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x float> [[TMP3]], i32 1
; CHECK-NEXT: [[VECIN1:%.*]] = insertelement <2 x float> [[VECIN0]], float [[TMP5]], i64 1
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x float> [[TMP3]], i32 2
; CHECK-NEXT: [[VECIN2:%.*]] = insertelement <2 x float> undef, float [[TMP6]], i64 0
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x float> [[TMP3]], i32 3
; CHECK-NEXT: [[VECIN3:%.*]] = insertelement <2 x float> [[VECIN2]], float [[TMP7]], i64 1
; CHECK-NEXT: [[RET0:%.*]] = insertvalue { <2 x float>, <2 x float> } undef, <2 x float> [[VECIN1]], 0
; CHECK-NEXT: [[RET1:%.*]] = insertvalue { <2 x float>, <2 x float> } [[RET0]], <2 x float> [[VECIN3]], 1
; CHECK-NEXT: ret { <2 x float>, <2 x float> } [[RET1]]
;
%GEP0 = getelementptr inbounds float, float* %Ptr, i64 0
%L0 = load float, float * %GEP0
%GEP1 = getelementptr inbounds float, float* %Ptr, i64 1
%L1 = load float, float * %GEP1
%GEP2 = getelementptr inbounds float, float* %Ptr, i64 2
%L2 = load float, float * %GEP2
%GEP3 = getelementptr inbounds float, float* %Ptr, i64 3
%L3 = load float, float * %GEP3
%Fadd0 = fadd fast float %L0, 1.1e+01
%Fadd1 = fadd fast float %L1, 1.2e+01
%Fadd2 = fadd fast float %L2, 1.3e+01
%Fadd3 = fadd fast float %L3, 1.4e+01
%VecIn0 = insertelement <2 x float> undef, float %Fadd0, i64 0
%VecIn1 = insertelement <2 x float> %VecIn0, float %Fadd1, i64 1
%VecIn2 = insertelement <2 x float> undef, float %Fadd2, i64 0
%VecIn3 = insertelement <2 x float> %VecIn2, float %Fadd3, i64 1
%Ret0 = insertvalue {<2 x float>, <2 x float>} undef, <2 x float> %VecIn1, 0
%Ret1 = insertvalue {<2 x float>, <2 x float>} %Ret0, <2 x float> %VecIn3, 1
ret {<2 x float>, <2 x float>} %Ret1
}
%StructTy = type { float, float}
define [2 x %StructTy] @ArrayOfStruct(float *%Ptr) {
; CHECK-LABEL: @ArrayOfStruct(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds float, float* [[PTR:%.*]], i64 0
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[GEP0]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fadd fast <4 x float> [[TMP2]], <float 1.100000e+01, float 1.200000e+01, float 1.300000e+01, float 1.400000e+01>
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x float> [[TMP3]], i32 0
; CHECK-NEXT: [[STRUCTIN0:%.*]] = insertvalue [[STRUCTTY:%.*]] undef, float [[TMP4]], 0
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x float> [[TMP3]], i32 1
; CHECK-NEXT: [[STRUCTIN1:%.*]] = insertvalue [[STRUCTTY]] [[STRUCTIN0]], float [[TMP5]], 1
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x float> [[TMP3]], i32 2
; CHECK-NEXT: [[STRUCTIN2:%.*]] = insertvalue [[STRUCTTY]] undef, float [[TMP6]], 0
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x float> [[TMP3]], i32 3
; CHECK-NEXT: [[STRUCTIN3:%.*]] = insertvalue [[STRUCTTY]] [[STRUCTIN2]], float [[TMP7]], 1
; CHECK-NEXT: [[RET0:%.*]] = insertvalue [2 x %StructTy] undef, [[STRUCTTY]] [[STRUCTIN1]], 0
; CHECK-NEXT: [[RET1:%.*]] = insertvalue [2 x %StructTy] [[RET0]], [[STRUCTTY]] [[STRUCTIN3]], 1
; CHECK-NEXT: ret [2 x %StructTy] [[RET1]]
;
%GEP0 = getelementptr inbounds float, float* %Ptr, i64 0
%L0 = load float, float * %GEP0
%GEP1 = getelementptr inbounds float, float* %Ptr, i64 1
%L1 = load float, float * %GEP1
%GEP2 = getelementptr inbounds float, float* %Ptr, i64 2
%L2 = load float, float * %GEP2
%GEP3 = getelementptr inbounds float, float* %Ptr, i64 3
%L3 = load float, float * %GEP3
%Fadd0 = fadd fast float %L0, 1.1e+01
%Fadd1 = fadd fast float %L1, 1.2e+01
%Fadd2 = fadd fast float %L2, 1.3e+01
%Fadd3 = fadd fast float %L3, 1.4e+01
%StructIn0 = insertvalue %StructTy undef, float %Fadd0, 0
%StructIn1 = insertvalue %StructTy %StructIn0, float %Fadd1, 1
%StructIn2 = insertvalue %StructTy undef, float %Fadd2, 0
%StructIn3 = insertvalue %StructTy %StructIn2, float %Fadd3, 1
%Ret0 = insertvalue [2 x %StructTy] undef, %StructTy %StructIn1, 0
%Ret1 = insertvalue [2 x %StructTy] %Ret0, %StructTy %StructIn3, 1
ret [2 x %StructTy] %Ret1
}
define {%StructTy, %StructTy} @StructOfStruct(float *%Ptr) {
; CHECK-LABEL: @StructOfStruct(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds float, float* [[PTR:%.*]], i64 0
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[GEP0]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fadd fast <4 x float> [[TMP2]], <float 1.100000e+01, float 1.200000e+01, float 1.300000e+01, float 1.400000e+01>
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x float> [[TMP3]], i32 0
; CHECK-NEXT: [[STRUCTIN0:%.*]] = insertvalue [[STRUCTTY:%.*]] undef, float [[TMP4]], 0
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x float> [[TMP3]], i32 1
; CHECK-NEXT: [[STRUCTIN1:%.*]] = insertvalue [[STRUCTTY]] [[STRUCTIN0]], float [[TMP5]], 1
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x float> [[TMP3]], i32 2
; CHECK-NEXT: [[STRUCTIN2:%.*]] = insertvalue [[STRUCTTY]] undef, float [[TMP6]], 0
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x float> [[TMP3]], i32 3
; CHECK-NEXT: [[STRUCTIN3:%.*]] = insertvalue [[STRUCTTY]] [[STRUCTIN2]], float [[TMP7]], 1
; CHECK-NEXT: [[RET0:%.*]] = insertvalue { [[STRUCTTY]], [[STRUCTTY]] } undef, [[STRUCTTY]] [[STRUCTIN1]], 0
; CHECK-NEXT: [[RET1:%.*]] = insertvalue { [[STRUCTTY]], [[STRUCTTY]] } [[RET0]], [[STRUCTTY]] [[STRUCTIN3]], 1
; CHECK-NEXT: ret { [[STRUCTTY]], [[STRUCTTY]] } [[RET1]]
;
%GEP0 = getelementptr inbounds float, float* %Ptr, i64 0
%L0 = load float, float * %GEP0
%GEP1 = getelementptr inbounds float, float* %Ptr, i64 1
%L1 = load float, float * %GEP1
%GEP2 = getelementptr inbounds float, float* %Ptr, i64 2
%L2 = load float, float * %GEP2
%GEP3 = getelementptr inbounds float, float* %Ptr, i64 3
%L3 = load float, float * %GEP3
%Fadd0 = fadd fast float %L0, 1.1e+01
%Fadd1 = fadd fast float %L1, 1.2e+01
%Fadd2 = fadd fast float %L2, 1.3e+01
%Fadd3 = fadd fast float %L3, 1.4e+01
%StructIn0 = insertvalue %StructTy undef, float %Fadd0, 0
%StructIn1 = insertvalue %StructTy %StructIn0, float %Fadd1, 1
%StructIn2 = insertvalue %StructTy undef, float %Fadd2, 0
%StructIn3 = insertvalue %StructTy %StructIn2, float %Fadd3, 1
%Ret0 = insertvalue {%StructTy, %StructTy} undef, %StructTy %StructIn1, 0
%Ret1 = insertvalue {%StructTy, %StructTy} %Ret0, %StructTy %StructIn3, 1
ret {%StructTy, %StructTy} %Ret1
}
define {%StructTy, float, float} @NonHomogeneousStruct(float *%Ptr) {
; CHECK-LABEL: @NonHomogeneousStruct(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds float, float* [[PTR:%.*]], i64 0
; CHECK-NEXT: [[L0:%.*]] = load float, float* [[GEP0]], align 4
; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds float, float* [[PTR]], i64 1
; CHECK-NEXT: [[L1:%.*]] = load float, float* [[GEP1]], align 4
; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds float, float* [[PTR]], i64 2
; CHECK-NEXT: [[L2:%.*]] = load float, float* [[GEP2]], align 4
; CHECK-NEXT: [[GEP3:%.*]] = getelementptr inbounds float, float* [[PTR]], i64 3
; CHECK-NEXT: [[L3:%.*]] = load float, float* [[GEP3]], align 4
; CHECK-NEXT: [[FADD0:%.*]] = fadd fast float [[L0]], 1.100000e+01
; CHECK-NEXT: [[FADD1:%.*]] = fadd fast float [[L1]], 1.200000e+01
; CHECK-NEXT: [[FADD2:%.*]] = fadd fast float [[L2]], 1.300000e+01
; CHECK-NEXT: [[FADD3:%.*]] = fadd fast float [[L3]], 1.400000e+01
; CHECK-NEXT: [[STRUCTIN0:%.*]] = insertvalue [[STRUCTTY:%.*]] undef, float [[FADD0]], 0
; CHECK-NEXT: [[STRUCTIN1:%.*]] = insertvalue [[STRUCTTY]] [[STRUCTIN0]], float [[FADD1]], 1
; CHECK-NEXT: [[RET0:%.*]] = insertvalue { [[STRUCTTY]], float, float } undef, [[STRUCTTY]] [[STRUCTIN1]], 0
; CHECK-NEXT: [[RET1:%.*]] = insertvalue { [[STRUCTTY]], float, float } [[RET0]], float [[FADD2]], 1
; CHECK-NEXT: [[RET2:%.*]] = insertvalue { [[STRUCTTY]], float, float } [[RET1]], float [[FADD3]], 2
; CHECK-NEXT: ret { [[STRUCTTY]], float, float } [[RET2]]
;
%GEP0 = getelementptr inbounds float, float* %Ptr, i64 0
%L0 = load float, float * %GEP0
%GEP1 = getelementptr inbounds float, float* %Ptr, i64 1
%L1 = load float, float * %GEP1
%GEP2 = getelementptr inbounds float, float* %Ptr, i64 2
%L2 = load float, float * %GEP2
%GEP3 = getelementptr inbounds float, float* %Ptr, i64 3
%L3 = load float, float * %GEP3
%Fadd0 = fadd fast float %L0, 1.1e+01
%Fadd1 = fadd fast float %L1, 1.2e+01
%Fadd2 = fadd fast float %L2, 1.3e+01
%Fadd3 = fadd fast float %L3, 1.4e+01
%StructIn0 = insertvalue %StructTy undef, float %Fadd0, 0
%StructIn1 = insertvalue %StructTy %StructIn0, float %Fadd1, 1
%Ret0 = insertvalue {%StructTy, float, float} undef, %StructTy %StructIn1, 0
%Ret1 = insertvalue {%StructTy, float, float} %Ret0, float %Fadd2, 1
%Ret2 = insertvalue {%StructTy, float, float} %Ret1, float %Fadd3, 2
ret {%StructTy, float, float} %Ret2
}
%Struct1Ty = type { i16, i16 }
%Struct2Ty = type { %Struct1Ty, %Struct1Ty}
define {%Struct2Ty, %Struct2Ty} @StructOfStructOfStruct(i16 *%Ptr) {
; CHECK-LABEL: @StructOfStructOfStruct(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds i16, i16* [[PTR:%.*]], i64 0
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i16* [[GEP0]] to <8 x i16>*
; CHECK-NEXT: [[TMP2:%.*]] = load <8 x i16>, <8 x i16>* [[TMP1]], align 2
; CHECK-NEXT: [[TMP3:%.*]] = add <8 x i16> [[TMP2]], <i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7, i16 8>
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <8 x i16> [[TMP3]], i32 0
; CHECK-NEXT: [[STRUCTIN0:%.*]] = insertvalue [[STRUCT1TY:%.*]] undef, i16 [[TMP4]], 0
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <8 x i16> [[TMP3]], i32 1
; CHECK-NEXT: [[STRUCTIN1:%.*]] = insertvalue [[STRUCT1TY]] [[STRUCTIN0]], i16 [[TMP5]], 1
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <8 x i16> [[TMP3]], i32 2
; CHECK-NEXT: [[STRUCTIN2:%.*]] = insertvalue [[STRUCT1TY]] undef, i16 [[TMP6]], 0
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <8 x i16> [[TMP3]], i32 3
; CHECK-NEXT: [[STRUCTIN3:%.*]] = insertvalue [[STRUCT1TY]] [[STRUCTIN2]], i16 [[TMP7]], 1
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <8 x i16> [[TMP3]], i32 4
; CHECK-NEXT: [[STRUCTIN4:%.*]] = insertvalue [[STRUCT1TY]] undef, i16 [[TMP8]], 0
; CHECK-NEXT: [[TMP9:%.*]] = extractelement <8 x i16> [[TMP3]], i32 5
; CHECK-NEXT: [[STRUCTIN5:%.*]] = insertvalue [[STRUCT1TY]] [[STRUCTIN4]], i16 [[TMP9]], 1
; CHECK-NEXT: [[TMP10:%.*]] = extractelement <8 x i16> [[TMP3]], i32 6
; CHECK-NEXT: [[STRUCTIN6:%.*]] = insertvalue [[STRUCT1TY]] undef, i16 [[TMP10]], 0
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <8 x i16> [[TMP3]], i32 7
; CHECK-NEXT: [[STRUCTIN7:%.*]] = insertvalue [[STRUCT1TY]] [[STRUCTIN6]], i16 [[TMP11]], 1
; CHECK-NEXT: [[STRUCT2IN0:%.*]] = insertvalue [[STRUCT2TY:%.*]] undef, [[STRUCT1TY]] [[STRUCTIN1]], 0
; CHECK-NEXT: [[STRUCT2IN1:%.*]] = insertvalue [[STRUCT2TY]] [[STRUCT2IN0]], [[STRUCT1TY]] [[STRUCTIN3]], 1
; CHECK-NEXT: [[STRUCT2IN2:%.*]] = insertvalue [[STRUCT2TY]] undef, [[STRUCT1TY]] [[STRUCTIN5]], 0
; CHECK-NEXT: [[STRUCT2IN3:%.*]] = insertvalue [[STRUCT2TY]] [[STRUCT2IN2]], [[STRUCT1TY]] [[STRUCTIN7]], 1
; CHECK-NEXT: [[RET0:%.*]] = insertvalue { [[STRUCT2TY]], [[STRUCT2TY]] } undef, [[STRUCT2TY]] [[STRUCT2IN1]], 0
; CHECK-NEXT: [[RET1:%.*]] = insertvalue { [[STRUCT2TY]], [[STRUCT2TY]] } [[RET0]], [[STRUCT2TY]] [[STRUCT2IN3]], 1
; CHECK-NEXT: ret { [[STRUCT2TY]], [[STRUCT2TY]] } [[RET1]]
;
%GEP0 = getelementptr inbounds i16, i16* %Ptr, i64 0
%L0 = load i16, i16 * %GEP0
%GEP1 = getelementptr inbounds i16, i16* %Ptr, i64 1
%L1 = load i16, i16 * %GEP1
%GEP2 = getelementptr inbounds i16, i16* %Ptr, i64 2
%L2 = load i16, i16 * %GEP2
%GEP3 = getelementptr inbounds i16, i16* %Ptr, i64 3
%L3 = load i16, i16 * %GEP3
%GEP4 = getelementptr inbounds i16, i16* %Ptr, i64 4
%L4 = load i16, i16 * %GEP4
%GEP5 = getelementptr inbounds i16, i16* %Ptr, i64 5
%L5 = load i16, i16 * %GEP5
%GEP6 = getelementptr inbounds i16, i16* %Ptr, i64 6
%L6 = load i16, i16 * %GEP6
%GEP7 = getelementptr inbounds i16, i16* %Ptr, i64 7
%L7 = load i16, i16 * %GEP7
%Fadd0 = add i16 %L0, 1
%Fadd1 = add i16 %L1, 2
%Fadd2 = add i16 %L2, 3
%Fadd3 = add i16 %L3, 4
%Fadd4 = add i16 %L4, 5
%Fadd5 = add i16 %L5, 6
%Fadd6 = add i16 %L6, 7
%Fadd7 = add i16 %L7, 8
%StructIn0 = insertvalue %Struct1Ty undef, i16 %Fadd0, 0
%StructIn1 = insertvalue %Struct1Ty %StructIn0, i16 %Fadd1, 1
%StructIn2 = insertvalue %Struct1Ty undef, i16 %Fadd2, 0
%StructIn3 = insertvalue %Struct1Ty %StructIn2, i16 %Fadd3, 1
%StructIn4 = insertvalue %Struct1Ty undef, i16 %Fadd4, 0
%StructIn5 = insertvalue %Struct1Ty %StructIn4, i16 %Fadd5, 1
%StructIn6 = insertvalue %Struct1Ty undef, i16 %Fadd6, 0
%StructIn7 = insertvalue %Struct1Ty %StructIn6, i16 %Fadd7, 1
%Struct2In0 = insertvalue %Struct2Ty undef, %Struct1Ty %StructIn1, 0
%Struct2In1 = insertvalue %Struct2Ty %Struct2In0, %Struct1Ty %StructIn3, 1
%Struct2In2 = insertvalue %Struct2Ty undef, %Struct1Ty %StructIn5, 0
%Struct2In3 = insertvalue %Struct2Ty %Struct2In2, %Struct1Ty %StructIn7, 1
%Ret0 = insertvalue {%Struct2Ty, %Struct2Ty} undef, %Struct2Ty %Struct2In1, 0
%Ret1 = insertvalue {%Struct2Ty, %Struct2Ty} %Ret0, %Struct2Ty %Struct2In3, 1
ret {%Struct2Ty, %Struct2Ty} %Ret1
}
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