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-rw-r--r--test/Transforms/SLPVectorizer/X86/diamond.ll32
1 files changed, 30 insertions, 2 deletions
diff --git a/test/Transforms/SLPVectorizer/X86/diamond.ll b/test/Transforms/SLPVectorizer/X86/diamond.ll
index 49c8712d20..8959b0d9ee 100644
--- a/test/Transforms/SLPVectorizer/X86/diamond.ll
+++ b/test/Transforms/SLPVectorizer/X86/diamond.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
+; 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"
@@ -74,6 +74,34 @@ entry:
%add20 = mul i32 %3, %mul238
%arrayidx21 = getelementptr inbounds i32* %B, i64 3
store i32 %add20, i32* %arrayidx21, align 4
- ret i32 %0 ;<--------- This value has multiple users and can't be vectorized.
+ 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: @extr_user1
+; CHECK: store <4 x i32>
+; CHECK-NEXT: extractelement <4 x i32>
+; CHECK: ret
+define i32 @extr_user1(i32* noalias nocapture %B, i32* noalias nocapture %A, i32 %n, i32 %m) {
+entry:
+ %0 = load 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* %A, i64 1
+ %1 = load i32* %arrayidx4, align 4
+ %add8 = mul i32 %1, %mul238
+ %arrayidx9 = getelementptr inbounds i32* %B, i64 1
+ store i32 %add8, i32* %arrayidx9, align 4
+ %arrayidx10 = getelementptr inbounds i32* %A, i64 2
+ %2 = load i32* %arrayidx10, align 4
+ %add14 = mul i32 %2, %mul238
+ %arrayidx15 = getelementptr inbounds i32* %B, i64 2
+ store i32 %add14, i32* %arrayidx15, align 4
+ %arrayidx16 = getelementptr inbounds i32* %A, i64 3
+ %3 = load i32* %arrayidx16, align 4
+ %add20 = mul i32 %3, %mul238
+ %arrayidx21 = getelementptr inbounds i32* %B, i64 3
+ store i32 %add20, i32* %arrayidx21, align 4
+ ret i32 %1 ;<--------- This value has multiple users
+}