1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s 3 4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 5target triple = "x86_64-apple-macosx10.8.0" 6 7; int foo(int * restrict B, int * restrict A, int n, int m) { 8; B[0] = n * A[0] + m * A[0]; 9; B[1] = n * A[1] + m * A[1]; 10; B[2] = n * A[2] + m * A[2]; 11; B[3] = n * A[3] + m * A[3]; 12; return 0; 13; } 14 15define i32 @foo(ptr noalias nocapture %B, ptr noalias nocapture %A, i32 %n, i32 %m) #0 { 16; CHECK-LABEL: @foo( 17; CHECK-NEXT: entry: 18; CHECK-NEXT: [[MUL238:%.*]] = add i32 [[M:%.*]], [[N:%.*]] 19; CHECK-NEXT: [[TMP0:%.*]] = load <4 x i32>, ptr [[A:%.*]], align 4 20; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x i32> poison, i32 [[MUL238]], i32 0 21; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer 22; CHECK-NEXT: [[TMP3:%.*]] = mul <4 x i32> [[TMP0]], [[TMP2]] 23; CHECK-NEXT: store <4 x i32> [[TMP3]], ptr [[B:%.*]], align 4 24; CHECK-NEXT: ret i32 0 25; 26entry: 27 %0 = load i32, ptr %A, align 4 28 %mul238 = add i32 %m, %n 29 %add = mul i32 %0, %mul238 30 store i32 %add, ptr %B, align 4 31 %arrayidx4 = getelementptr inbounds i32, ptr %A, i64 1 32 %1 = load i32, ptr %arrayidx4, align 4 33 %add8 = mul i32 %1, %mul238 34 %arrayidx9 = getelementptr inbounds i32, ptr %B, i64 1 35 store i32 %add8, ptr %arrayidx9, align 4 36 %arrayidx10 = getelementptr inbounds i32, ptr %A, i64 2 37 %2 = load i32, ptr %arrayidx10, align 4 38 %add14 = mul i32 %2, %mul238 39 %arrayidx15 = getelementptr inbounds i32, ptr %B, i64 2 40 store i32 %add14, ptr %arrayidx15, align 4 41 %arrayidx16 = getelementptr inbounds i32, ptr %A, i64 3 42 %3 = load i32, ptr %arrayidx16, align 4 43 %add20 = mul i32 %3, %mul238 44 %arrayidx21 = getelementptr inbounds i32, ptr %B, i64 3 45 store i32 %add20, ptr %arrayidx21, align 4 46 ret i32 0 47} 48 49 50; int extr_user(int * restrict B, int * restrict A, int n, int m) { 51; B[0] = n * A[0] + m * A[0]; 52; B[1] = n * A[1] + m * A[1]; 53; B[2] = n * A[2] + m * A[2]; 54; B[3] = n * A[3] + m * A[3]; 55; return A[0]; 56; } 57 58define i32 @extr_user(ptr noalias nocapture %B, ptr noalias nocapture %A, i32 %n, i32 %m) { 59; CHECK-LABEL: @extr_user( 60; CHECK-NEXT: entry: 61; CHECK-NEXT: [[MUL238:%.*]] = add i32 [[M:%.*]], [[N:%.*]] 62; CHECK-NEXT: [[TMP0:%.*]] = load <4 x i32>, ptr [[A:%.*]], align 4 63; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4 64; CHECK-NEXT: [[TMP2:%.*]] = insertelement <4 x i32> poison, i32 [[MUL238]], i32 0 65; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <4 x i32> [[TMP2]], <4 x i32> poison, <4 x i32> zeroinitializer 66; CHECK-NEXT: [[TMP4:%.*]] = mul <4 x i32> [[TMP0]], [[TMP3]] 67; CHECK-NEXT: store <4 x i32> [[TMP4]], ptr [[B:%.*]], align 4 68; CHECK-NEXT: ret i32 [[TMP1]] 69; 70entry: 71 %0 = load i32, ptr %A, align 4 72 %mul238 = add i32 %m, %n 73 %add = mul i32 %0, %mul238 74 store i32 %add, ptr %B, align 4 75 %arrayidx4 = getelementptr inbounds i32, ptr %A, i64 1 76 %1 = load i32, ptr %arrayidx4, align 4 77 %add8 = mul i32 %1, %mul238 78 %arrayidx9 = getelementptr inbounds i32, ptr %B, i64 1 79 store i32 %add8, ptr %arrayidx9, align 4 80 %arrayidx10 = getelementptr inbounds i32, ptr %A, i64 2 81 %2 = load i32, ptr %arrayidx10, align 4 82 %add14 = mul i32 %2, %mul238 83 %arrayidx15 = getelementptr inbounds i32, ptr %B, i64 2 84 store i32 %add14, ptr %arrayidx15, align 4 85 %arrayidx16 = getelementptr inbounds i32, ptr %A, i64 3 86 %3 = load i32, ptr %arrayidx16, align 4 87 %add20 = mul i32 %3, %mul238 88 %arrayidx21 = getelementptr inbounds i32, ptr %B, i64 3 89 store i32 %add20, ptr %arrayidx21, align 4 90 ret i32 %0 ;<--------- This value has multiple users 91} 92 93; In this example we have an external user that is not the first element in the vector. 94define i32 @extr_user1(ptr noalias nocapture %B, ptr noalias nocapture %A, i32 %n, i32 %m) { 95; CHECK-LABEL: @extr_user1( 96; CHECK-NEXT: entry: 97; CHECK-NEXT: [[MUL238:%.*]] = add i32 [[M:%.*]], [[N:%.*]] 98; CHECK-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 1 99; CHECK-NEXT: [[TMP0:%.*]] = load <4 x i32>, ptr [[A]], align 4 100; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX4]], align 4 101; CHECK-NEXT: [[TMP2:%.*]] = insertelement <4 x i32> poison, i32 [[MUL238]], i32 0 102; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <4 x i32> [[TMP2]], <4 x i32> poison, <4 x i32> zeroinitializer 103; CHECK-NEXT: [[TMP4:%.*]] = mul <4 x i32> [[TMP0]], [[TMP3]] 104; CHECK-NEXT: store <4 x i32> [[TMP4]], ptr [[B:%.*]], align 4 105; CHECK-NEXT: ret i32 [[TMP1]] 106; 107entry: 108 %0 = load i32, ptr %A, align 4 109 %mul238 = add i32 %m, %n 110 %add = mul i32 %0, %mul238 111 store i32 %add, ptr %B, align 4 112 %arrayidx4 = getelementptr inbounds i32, ptr %A, i64 1 113 %1 = load i32, ptr %arrayidx4, align 4 114 %add8 = mul i32 %1, %mul238 115 %arrayidx9 = getelementptr inbounds i32, ptr %B, i64 1 116 store i32 %add8, ptr %arrayidx9, align 4 117 %arrayidx10 = getelementptr inbounds i32, ptr %A, i64 2 118 %2 = load i32, ptr %arrayidx10, align 4 119 %add14 = mul i32 %2, %mul238 120 %arrayidx15 = getelementptr inbounds i32, ptr %B, i64 2 121 store i32 %add14, ptr %arrayidx15, align 4 122 %arrayidx16 = getelementptr inbounds i32, ptr %A, i64 3 123 %3 = load i32, ptr %arrayidx16, align 4 124 %add20 = mul i32 %3, %mul238 125 %arrayidx21 = getelementptr inbounds i32, ptr %B, i64 3 126 store i32 %add20, ptr %arrayidx21, align 4 127 ret i32 %1 ;<--------- This value has multiple users 128} 129