| ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s |
| |
| target 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" |
| target triple = "x86_64-apple-macosx10.8.0" |
| |
| ; int foo(int * restrict B, int * restrict A, int n, int m) { |
| ; B[0] = n * A[0] + m * A[0]; |
| ; B[1] = n * A[1] + m * A[1]; |
| ; B[2] = n * A[2] + m * A[2]; |
| ; B[3] = n * A[3] + m * A[3]; |
| ; return 0; |
| ; } |
| |
| ; CHECK-LABEL: @foo( |
| ; CHECK: load <4 x i32> |
| ; CHECK: mul <4 x i32> |
| ; CHECK: store <4 x i32> |
| ; CHECK: ret |
| define i32 @foo(i32* noalias nocapture %B, i32* noalias nocapture %A, i32 %n, i32 %m) #0 { |
| entry: |
| %0 = load i32, i32* %A, align 4 |
| %mul238 = add i32 %m, %n |
| %add = mul i32 %0, %mul238 |
| store i32 %add, i32* %B, align 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 1 |
| %1 = load i32, i32* %arrayidx4, align 4 |
| %add8 = mul i32 %1, %mul238 |
| %arrayidx9 = getelementptr inbounds i32, i32* %B, i64 1 |
| store i32 %add8, i32* %arrayidx9, align 4 |
| %arrayidx10 = getelementptr inbounds i32, i32* %A, i64 2 |
| %2 = load i32, i32* %arrayidx10, align 4 |
| %add14 = mul i32 %2, %mul238 |
| %arrayidx15 = getelementptr inbounds i32, i32* %B, i64 2 |
| store i32 %add14, i32* %arrayidx15, align 4 |
| %arrayidx16 = getelementptr inbounds i32, i32* %A, i64 3 |
| %3 = load i32, i32* %arrayidx16, align 4 |
| %add20 = mul i32 %3, %mul238 |
| %arrayidx21 = getelementptr inbounds i32, i32* %B, i64 3 |
| store i32 %add20, i32* %arrayidx21, align 4 |
| ret i32 0 |
| } |
| |
| |
| ; int extr_user(int * restrict B, int * restrict A, int n, int m) { |
| ; B[0] = n * A[0] + m * A[0]; |
| ; B[1] = n * A[1] + m * A[1]; |
| ; B[2] = n * A[2] + m * A[2]; |
| ; B[3] = n * A[3] + m * A[3]; |
| ; return A[0]; |
| ; } |
| |
| ; CHECK-LABEL: @extr_user( |
| ; CHECK: load <4 x i32> |
| ; CHECK: store <4 x i32> |
| ; CHECK: extractelement <4 x i32> |
| ; CHECK-NEXT: ret |
| define i32 @extr_user(i32* noalias nocapture %B, i32* noalias nocapture %A, i32 %n, i32 %m) { |
| entry: |
| %0 = load i32, i32* %A, align 4 |
| %mul238 = add i32 %m, %n |
| %add = mul i32 %0, %mul238 |
| store i32 %add, i32* %B, align 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 1 |
| %1 = load i32, i32* %arrayidx4, align 4 |
| %add8 = mul i32 %1, %mul238 |
| %arrayidx9 = getelementptr inbounds i32, i32* %B, i64 1 |
| store i32 %add8, i32* %arrayidx9, align 4 |
| %arrayidx10 = getelementptr inbounds i32, i32* %A, i64 2 |
| %2 = load i32, i32* %arrayidx10, align 4 |
| %add14 = mul i32 %2, %mul238 |
| %arrayidx15 = getelementptr inbounds i32, i32* %B, i64 2 |
| store i32 %add14, i32* %arrayidx15, align 4 |
| %arrayidx16 = getelementptr inbounds i32, i32* %A, i64 3 |
| %3 = load i32, i32* %arrayidx16, align 4 |
| %add20 = mul i32 %3, %mul238 |
| %arrayidx21 = getelementptr inbounds i32, i32* %B, i64 3 |
| store i32 %add20, i32* %arrayidx21, align 4 |
| ret i32 %0 ;<--------- This value has multiple users |
| } |
| |
| ; In this example we have an external user that is not the first element in the vector. |
| ; CHECK-LABEL: @extr_user1( |
| ; CHECK: load <4 x i32> |
| ; CHECK: store <4 x i32> |
| ; CHECK: extractelement <4 x i32> |
| ; CHECK-NEXT: ret |
| define i32 @extr_user1(i32* noalias nocapture %B, i32* noalias nocapture %A, i32 %n, i32 %m) { |
| entry: |
| %0 = load i32, i32* %A, align 4 |
| %mul238 = add i32 %m, %n |
| %add = mul i32 %0, %mul238 |
| store i32 %add, i32* %B, align 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 1 |
| %1 = load i32, i32* %arrayidx4, align 4 |
| %add8 = mul i32 %1, %mul238 |
| %arrayidx9 = getelementptr inbounds i32, i32* %B, i64 1 |
| store i32 %add8, i32* %arrayidx9, align 4 |
| %arrayidx10 = getelementptr inbounds i32, i32* %A, i64 2 |
| %2 = load i32, i32* %arrayidx10, align 4 |
| %add14 = mul i32 %2, %mul238 |
| %arrayidx15 = getelementptr inbounds i32, i32* %B, i64 2 |
| store i32 %add14, i32* %arrayidx15, align 4 |
| %arrayidx16 = getelementptr inbounds i32, i32* %A, i64 3 |
| %3 = load i32, i32* %arrayidx16, align 4 |
| %add20 = mul i32 %3, %mul238 |
| %arrayidx21 = getelementptr inbounds i32, i32* %B, i64 3 |
| store i32 %add20, i32* %arrayidx21, align 4 |
| ret i32 %1 ;<--------- This value has multiple users |
| } |