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Diffstat (limited to 'test/Transforms/SLPVectorizer/X86/diamond.ll')
| -rw-r--r-- | test/Transforms/SLPVectorizer/X86/diamond.ll | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/test/Transforms/SLPVectorizer/X86/diamond.ll b/test/Transforms/SLPVectorizer/X86/diamond.ll new file mode 100644 index 0000000000000..8e85cb6c9b8f8 --- /dev/null +++ b/test/Transforms/SLPVectorizer/X86/diamond.ll @@ -0,0 +1,78 @@ +; RUN: opt < %s -basicaa -slp-vectorizer -dce -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: @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* %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 0 +} + + +; int foo_fail(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: @foo_fail +; CHECK-NOT: load <4 x i32> +; CHECK: ret +define i32 @foo_fail(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 %0 ;<--------- This value has multiple users and can't be vectorized. +} + |