7d6e8f2a96
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
107 lines
4.6 KiB
LLVM
107 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -mtriple=x86_64-unknown -mattr=+avx -slp-vectorizer | FileCheck %s
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;void jumble (int * restrict A, int * restrict B) {
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; int tmp0 = A[10]*A[0];
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; int tmp1 = A[11]*A[1];
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; int tmp2 = A[12]*A[3];
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; int tmp3 = A[13]*A[2];
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; B[0] = tmp0;
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; B[1] = tmp1;
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; B[2] = tmp2;
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; B[3] = tmp3;
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;}
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; Function Attrs: norecurse nounwind uwtable
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define void @jumble1(i32* noalias nocapture readonly %A, i32* noalias nocapture %B) {
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; CHECK-LABEL: @jumble1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 10
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
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; CHECK-NEXT: [[TMP1:%.*]] = load <4 x i32>, <4 x i32>* [[TMP0]], align 4
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[A]] to <4 x i32>*
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; CHECK-NEXT: [[TMP3:%.*]] = load <4 x i32>, <4 x i32>* [[TMP2]], align 4
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; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP3]], <4 x i32> poison, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
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; CHECK-NEXT: [[TMP4:%.*]] = mul nsw <4 x i32> [[TMP1]], [[SHUFFLE]]
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; CHECK-NEXT: [[TMP5:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
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; CHECK-NEXT: store <4 x i32> [[TMP4]], <4 x i32>* [[TMP5]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 10
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%0 = load i32, i32* %arrayidx, align 4
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%1 = load i32, i32* %A, align 4
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%mul = mul nsw i32 %0, %1
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 11
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%2 = load i32, i32* %arrayidx2, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 1
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%3 = load i32, i32* %arrayidx3, align 4
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%mul4 = mul nsw i32 %2, %3
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%arrayidx5 = getelementptr inbounds i32, i32* %A, i64 12
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%4 = load i32, i32* %arrayidx5, align 4
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%arrayidx6 = getelementptr inbounds i32, i32* %A, i64 3
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%5 = load i32, i32* %arrayidx6, align 4
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%mul7 = mul nsw i32 %4, %5
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%arrayidx8 = getelementptr inbounds i32, i32* %A, i64 13
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%6 = load i32, i32* %arrayidx8, align 4
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%arrayidx9 = getelementptr inbounds i32, i32* %A, i64 2
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%7 = load i32, i32* %arrayidx9, align 4
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%mul10 = mul nsw i32 %6, %7
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store i32 %mul, i32* %B, align 4
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%arrayidx12 = getelementptr inbounds i32, i32* %B, i64 1
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store i32 %mul4, i32* %arrayidx12, align 4
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%arrayidx13 = getelementptr inbounds i32, i32* %B, i64 2
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store i32 %mul7, i32* %arrayidx13, align 4
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%arrayidx14 = getelementptr inbounds i32, i32* %B, i64 3
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store i32 %mul10, i32* %arrayidx14, align 4
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ret void
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}
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;Reversing the operand of MUL
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; Function Attrs: norecurse nounwind uwtable
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define void @jumble2(i32* noalias nocapture readonly %A, i32* noalias nocapture %B) {
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; CHECK-LABEL: @jumble2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 10
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
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; CHECK-NEXT: [[TMP1:%.*]] = load <4 x i32>, <4 x i32>* [[TMP0]], align 4
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[A]] to <4 x i32>*
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; CHECK-NEXT: [[TMP3:%.*]] = load <4 x i32>, <4 x i32>* [[TMP2]], align 4
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; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP3]], <4 x i32> poison, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
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; CHECK-NEXT: [[TMP4:%.*]] = mul nsw <4 x i32> [[SHUFFLE]], [[TMP1]]
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; CHECK-NEXT: [[TMP5:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
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; CHECK-NEXT: store <4 x i32> [[TMP4]], <4 x i32>* [[TMP5]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 10
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%0 = load i32, i32* %arrayidx, align 4
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%1 = load i32, i32* %A, align 4
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%mul = mul nsw i32 %1, %0
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 11
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%2 = load i32, i32* %arrayidx2, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 1
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%3 = load i32, i32* %arrayidx3, align 4
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%mul4 = mul nsw i32 %3, %2
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%arrayidx5 = getelementptr inbounds i32, i32* %A, i64 12
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%4 = load i32, i32* %arrayidx5, align 4
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%arrayidx6 = getelementptr inbounds i32, i32* %A, i64 3
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%5 = load i32, i32* %arrayidx6, align 4
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%mul7 = mul nsw i32 %5, %4
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%arrayidx8 = getelementptr inbounds i32, i32* %A, i64 13
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%6 = load i32, i32* %arrayidx8, align 4
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%arrayidx9 = getelementptr inbounds i32, i32* %A, i64 2
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%7 = load i32, i32* %arrayidx9, align 4
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%mul10 = mul nsw i32 %7, %6
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store i32 %mul, i32* %B, align 4
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%arrayidx12 = getelementptr inbounds i32, i32* %B, i64 1
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store i32 %mul4, i32* %arrayidx12, align 4
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%arrayidx13 = getelementptr inbounds i32, i32* %B, i64 2
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store i32 %mul7, i32* %arrayidx13, align 4
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%arrayidx14 = getelementptr inbounds i32, i32* %B, i64 3
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store i32 %mul10, i32* %arrayidx14, align 4
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ret void
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}
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