From: Craig Topper <craig.topper@intel.com>
Date: Fri, 31 Aug 2018 07:05:39 +0000 (+0000)
Subject: [X86] Don't do anything in ReplaceNodeResults for (v2i32 (fptoui/fptosi v2f32)) when... 
X-Git-Tag: llvmorg-8.0.0-rc1~9687
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=83e9f928ba28b7bc6dd6a7f1a255a59f8b6785a8;p=platform%2Fupstream%2Fllvm.git

[X86] Don't do anything in ReplaceNodeResults for (v2i32 (fptoui/fptosi v2f32)) when -x86-experimental-vector-widening-legalization is on.

We don't need to do our own widening, the generic legalizer can do it.

llvm-svn: 341174
---

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index e9949be5..d64f71c 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -25790,14 +25790,14 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N,
         Results.push_back(Res);
         return;
       }
-      if (SrcVT == MVT::v2f32) {
+      if (SrcVT == MVT::v2f32 &&
+          getTypeAction(*DAG.getContext(), MVT::v2i32) != TypeWidenVector) {
         SDValue Idx = DAG.getIntPtrConstant(0, dl);
         SDValue Res = DAG.getNode(ISD::CONCAT_VECTORS, dl, MVT::v4f32, Src,
                                   DAG.getUNDEF(MVT::v2f32));
         Res = DAG.getNode(IsSigned ? ISD::FP_TO_SINT
                                    : ISD::FP_TO_UINT, dl, MVT::v4i32, Res);
-        if (getTypeAction(*DAG.getContext(), MVT::v2i32) != TypeWidenVector)
-          Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i32, Res, Idx);
+        Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i32, Res, Idx);
         Results.push_back(Res);
         return;
       }