From: Alexey Bataev <a.bataev@hotmail.com>
Date: Mon, 13 Feb 2017 19:08:19 +0000 (+0000)
Subject: [SLP] Test for extractelement cost fix.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=aa5c0a0385fe9e3196a192cd311e6c74ea3bd879;p=llvm

[SLP] Test for extractelement cost fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294980 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/SLPVectorizer/X86/extractelement.ll b/test/Transforms/SLPVectorizer/X86/extractelement.ll
new file mode 100644
index 00000000000..264444447b6
--- /dev/null
+++ b/test/Transforms/SLPVectorizer/X86/extractelement.ll
@@ -0,0 +1,20 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-unknown-linux -march=core-avx2 | FileCheck %s
+
+define float @f(<2 x float> %x) {
+; CHECK-LABEL: @f(
+; CHECK-NEXT:    [[X0:%.*]] = extractelement <2 x float> [[X:%.*]], i32 0
+; CHECK-NEXT:    [[X1:%.*]] = extractelement <2 x float> [[X]], i32 1
+; CHECK-NEXT:    [[X0X0:%.*]] = fmul float [[X0]], [[X0]]
+; CHECK-NEXT:    [[X1X1:%.*]] = fmul float [[X1]], [[X1]]
+; CHECK-NEXT:    [[ADD:%.*]] = fadd float [[X0X0]], [[X1X1]]
+; CHECK-NEXT:    ret float [[ADD]]
+;
+  %x0 = extractelement <2 x float> %x, i32 0
+  %x1 = extractelement <2 x float> %x, i32 1
+  %x0x0 = fmul float %x0, %x0
+  %x1x1 = fmul float %x1, %x1
+  %add = fadd float %x0x0, %x1x1
+  ret float %add
+}
+