From 2d0cab9d3ddcc0d3a5ea1313316fa92df0caec07 Mon Sep 17 00:00:00 2001 From: Alexey Bataev Date: Mon, 15 Nov 2021 12:09:32 -0800 Subject: [PATCH] [SLP][NFC]Add a test for extra shuffle emission, NFC. --- .../X86/diamond_broadcast_extra_shuffle.ll | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 llvm/test/Transforms/SLPVectorizer/X86/diamond_broadcast_extra_shuffle.ll diff --git a/llvm/test/Transforms/SLPVectorizer/X86/diamond_broadcast_extra_shuffle.ll b/llvm/test/Transforms/SLPVectorizer/X86/diamond_broadcast_extra_shuffle.ll new file mode 100644 index 0000000..accc40b --- /dev/null +++ b/llvm/test/Transforms/SLPVectorizer/X86/diamond_broadcast_extra_shuffle.ll @@ -0,0 +1,35 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-unknown-linux -slp-threshold=-2 | FileCheck %s + +define i32 @diamond_broadcast(i32* noalias nocapture %B, i32* noalias nocapture %A) { +; CHECK-LABEL: @diamond_broadcast( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[LD:%.*]] = load i32, i32* [[A:%.*]], align 4 +; CHECK-NEXT: [[ARRAYIDX9:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 1 +; CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 2 +; CHECK-NEXT: [[TMP0:%.*]] = insertelement <4 x i32> poison, i32 [[LD]], i32 0 +; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP0]], <4 x i32> poison, <4 x i32> zeroinitializer +; CHECK-NEXT: [[SHUFFLE1:%.*]] = shufflevector <4 x i32> [[TMP0]], <4 x i32> poison, <4 x i32> +; CHECK-NEXT: [[TMP1:%.*]] = mul <4 x i32> [[SHUFFLE]], [[SHUFFLE1]] +; CHECK-NEXT: [[ARRAYIDX21:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 3 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[B]] to <4 x i32>* +; CHECK-NEXT: store <4 x i32> [[TMP1]], <4 x i32>* [[TMP2]], align 4 +; CHECK-NEXT: ret i32 0 +; +entry: + %ld = load i32, i32* %A, align 4 + %mul = mul i32 %ld, %ld + store i32 %mul, i32* %B, align 4 + %mul8 = mul i32 %ld, %ld + %arrayidx9 = getelementptr inbounds i32, i32* %B, i64 1 + store i32 %mul8, i32* %arrayidx9, align 4 + %mul14 = mul i32 %ld, %ld + %arrayidx15 = getelementptr inbounds i32, i32* %B, i64 2 + store i32 %mul14, i32* %arrayidx15, align 4 + %mul20 = mul i32 %ld, undef + %arrayidx21 = getelementptr inbounds i32, i32* %B, i64 3 + store i32 %mul20, i32* %arrayidx21, align 4 + ret i32 0 +} + + -- 2.7.4