forked from OSchip/llvm-project
49 lines
2.3 KiB
LLVM
49 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -slp-vectorizer -slp-vectorize-hor -S -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 < %s | FileCheck %s
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; int test(unsigned int *p) {
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; int sum = 0;
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; for (int i = 0; i < 8; i++)
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; sum += p[i];
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; return sum;
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; }
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define i32 @test(i32* nocapture readonly %p) {
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; CHECK-LABEL: @test(
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; CHECK: [[BC:%.*]] = bitcast i32* %p to <8 x i32>*
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; CHECK-NEXT: [[LD:%.*]] = load <8 x i32>, <8 x i32>* [[BC]], align 4
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; CHECK: [[RDX_SHUF:%.*]] = shufflevector <8 x i32> [[LD]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
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; CHECK-NEXT: [[BIN_RDX:%.*]] = add <8 x i32> [[LD]], [[RDX_SHUF]]
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; CHECK-NEXT: [[RDX_SHUF1:%.*]] = shufflevector <8 x i32> [[BIN_RDX]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
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; CHECK-NEXT: [[BIN_RDX2:%.*]] = add <8 x i32> [[BIN_RDX]], [[RDX_SHUF1]]
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; CHECK-NEXT: [[RDX_SHUF3:%.*]] = shufflevector <8 x i32> [[BIN_RDX2]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
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; CHECK-NEXT: [[BIN_RDX4:%.*]] = add <8 x i32> [[BIN_RDX2]], [[RDX_SHUF3]]
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; CHECK-NEXT: [[TMP2:%.*]] = extractelement <8 x i32> [[BIN_RDX4]], i32 0
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; CHECK: ret i32 [[TMP2]]
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;
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entry:
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%0 = load i32, i32* %p, align 4
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%arrayidx.1 = getelementptr inbounds i32, i32* %p, i64 1
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%1 = load i32, i32* %arrayidx.1, align 4
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%mul.18 = add i32 %1, %0
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%arrayidx.2 = getelementptr inbounds i32, i32* %p, i64 2
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%2 = load i32, i32* %arrayidx.2, align 4
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%mul.29 = add i32 %2, %mul.18
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%arrayidx.3 = getelementptr inbounds i32, i32* %p, i64 3
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%3 = load i32, i32* %arrayidx.3, align 4
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%mul.310 = add i32 %3, %mul.29
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%arrayidx.4 = getelementptr inbounds i32, i32* %p, i64 4
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%4 = load i32, i32* %arrayidx.4, align 4
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%mul.411 = add i32 %4, %mul.310
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%arrayidx.5 = getelementptr inbounds i32, i32* %p, i64 5
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%5 = load i32, i32* %arrayidx.5, align 4
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%mul.512 = add i32 %5, %mul.411
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%arrayidx.6 = getelementptr inbounds i32, i32* %p, i64 6
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%6 = load i32, i32* %arrayidx.6, align 4
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%mul.613 = add i32 %6, %mul.512
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%arrayidx.7 = getelementptr inbounds i32, i32* %p, i64 7
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%7 = load i32, i32* %arrayidx.7, align 4
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%mul.714 = add i32 %7, %mul.613
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ret i32 %mul.714
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}
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