From: Alexey Bataev <a.bataev@hotmail.com>
Date: Mon, 6 Mar 2017 16:26:00 +0000 (+0000)
Subject: [SLP] A test for vectorization of users of extractelement instructions,
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5645eb34af0a91046107c432dd7545922c433ebb;p=llvm

[SLP] A test for vectorization of users of extractelement instructions,
NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297024 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/SLPVectorizer/X86/vector.ll b/test/Transforms/SLPVectorizer/X86/vector.ll
index 02a18979c65..e1f3fa50ccd 100644
--- a/test/Transforms/SLPVectorizer/X86/vector.ll
+++ b/test/Transforms/SLPVectorizer/X86/vector.ll
@@ -1,14 +1,49 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -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"
 
 ; Make sure that we are not crashing or changing the code.
-;CHECK: test
-;CHECK: icmp
-;CHECK: ret
 define void @test(<4 x i32> %in, <4 x i32> %in2) {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:    [[K:%.*]] = icmp eq <4 x i32> [[IN:%.*]], [[IN2:%.*]]
+; CHECK-NEXT:    ret void
+;
   %k = icmp eq <4 x i32> %in, %in2
   ret void
 }
 
+define i1 @cmpv2f32(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @cmpv2f32(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[X0:%.*]] = extractelement <2 x i32> [[X:%.*]], i32 0
+; CHECK-NEXT:    [[Y0:%.*]] = extractelement <2 x i32> [[Y:%.*]], i32 0
+; CHECK-NEXT:    [[CMP0:%.*]] = icmp eq i32 [[X0]], [[Y0]]
+; CHECK-NEXT:    br i1 [[CMP0]], label [[IF:%.*]], label [[ENDIF:%.*]]
+; CHECK:       if:
+; CHECK-NEXT:    [[X1:%.*]] = extractelement <2 x i32> [[X]], i32 1
+; CHECK-NEXT:    [[Y1:%.*]] = extractelement <2 x i32> [[Y]], i32 1
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i32 [[X1]], [[Y1]]
+; CHECK-NEXT:    br label [[ENDIF]]
+; CHECK:       endif:
+; CHECK-NEXT:    [[AND_OF_CMPS:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[CMP1]], [[IF]] ]
+; CHECK-NEXT:    ret i1 [[AND_OF_CMPS]]
+;
+  entry:
+  %x0 = extractelement <2 x i32> %x, i32 0
+  %y0 = extractelement <2 x i32> %y, i32 0
+  %cmp0 = icmp eq i32 %x0, %y0
+  br i1 %cmp0, label %if, label %endif
+
+  if:
+  %x1 = extractelement <2 x i32> %x, i32 1
+  %y1 = extractelement <2 x i32> %y, i32 1
+  %cmp1 = icmp eq i32 %x1, %y1
+  br label %endif
+
+  endif:
+  %and_of_cmps = phi i1 [ false, %entry ], [ %cmp1, %if ]
+  ret i1 %and_of_cmps
+}
+