5f53e85f8a
Need to use original reduced value, not the one the compiler gets after reduction, it may be replaced by the extractelement instruction already.
59 lines
2.3 KiB
LLVM
59 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S --passes=slp-vectorizer -mtriple=x86_64-unknown-linux-gnu -mattr=+avx < %s | FileCheck %s
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define i32 @foo() {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[TMP0:%.*]] = extractelement <2 x i32> zeroinitializer, i32 0
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; CHECK-NEXT: [[TMP1:%.*]] = or <4 x i32> zeroinitializer, zeroinitializer
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; CHECK-NEXT: [[TMP2:%.*]] = extractelement <4 x i32> [[TMP1]], i32 0
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; CHECK-NEXT: [[TMP3:%.*]] = mul <4 x i32> [[TMP1]], zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = add <4 x i32> [[TMP3]], zeroinitializer
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; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.vector.reduce.mul.v4i32(<4 x i32> [[TMP4]])
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; CHECK-NEXT: [[OP_RDX:%.*]] = mul i32 0, [[TMP5]]
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; CHECK-NEXT: [[OP_RDX1:%.*]] = mul i32 [[OP_RDX]], 0
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; CHECK-NEXT: [[OP_RDX2:%.*]] = mul i32 [[TMP0]], [[TMP0]]
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; CHECK-NEXT: [[OP_RDX3:%.*]] = mul i32 [[TMP0]], [[TMP0]]
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; CHECK-NEXT: [[OP_RDX4:%.*]] = mul i32 [[OP_RDX1]], [[OP_RDX2]]
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; CHECK-NEXT: [[OP_RDX5:%.*]] = mul i32 [[OP_RDX3]], [[TMP2]]
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; CHECK-NEXT: [[OP_RDX6:%.*]] = mul i32 [[OP_RDX4]], [[OP_RDX5]]
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; CHECK-NEXT: ret i32 [[OP_RDX6]]
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;
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bb:
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%inst5 = add i32 0, 0
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%0 = extractelement <2 x i32> zeroinitializer, i32 0
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%inst7 = mul i32 %0, %inst5
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%1 = extractelement <2 x i32> zeroinitializer, i32 0
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%inst13 = mul i32 %1, %inst7
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%inst14 = mul i32 %inst13, 0
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%2 = extractelement <2 x i32> zeroinitializer, i32 0
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%inst19 = mul i32 %2, %inst14
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%inst20 = mul i32 %inst19, 0
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%3 = extractelement <2 x i32> zeroinitializer, i32 0
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%inst26 = mul i32 %3, %inst20
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%inst27 = mul i32 %inst26, 0
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%4 = or <4 x i32> zeroinitializer, zeroinitializer
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%5 = extractelement <4 x i32> %4, i32 0
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%inst31 = mul i32 %5, 0
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%inst32 = add i32 %inst31, 0
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%inst33 = mul i32 %5, %inst27
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%inst34 = mul i32 %inst33, %inst32
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%6 = extractelement <4 x i32> %4, i32 1
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%inst39 = mul i32 %6, 0
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%inst40 = add i32 %inst39, 0
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%inst41 = mul i32 0, %inst34
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%inst42 = mul i32 %inst41, %inst40
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%7 = extractelement <4 x i32> %4, i32 2
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%inst47 = mul i32 %7, 0
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%inst48 = add i32 %inst47, 0
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%inst49 = mul i32 0, %inst42
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%inst50 = mul i32 %inst49, %inst48
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%8 = extractelement <4 x i32> %4, i32 3
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%inst55 = mul i32 %8, 0
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%inst56 = add i32 %inst55, 0
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%inst57 = mul i32 0, %inst50
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%inst58 = mul i32 %inst57, %inst56
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ret i32 %inst58
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}
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