From 35a5640254d38fcdf73b22a839980aaacd437092 Mon Sep 17 00:00:00 2001 From: Michael Liao Date: Wed, 17 Oct 2012 03:59:18 +0000 Subject: [PATCH] Check SSSE3 instead of SSE4.1 - All shuffle insns required, especially PSHUB, are added in SSSE3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166086 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index fb0fdb3631d..a205aef7427 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -15477,11 +15477,11 @@ static SDValue PerformLOADCombine(SDNode *N, SelectionDAG &DAG, ISD::LoadExtType Ext = Ld->getExtensionType(); // If this is a vector EXT Load then attempt to optimize it using a - // shuffle. We need SSE4 for the shuffles. + // shuffle. We need SSSE3 shuffles. // TODO: It is possible to support ZExt by zeroing the undef values // during the shuffle phase or after the shuffle. if (RegVT.isVector() && RegVT.isInteger() && - Ext == ISD::EXTLOAD && Subtarget->hasSSE41()) { + Ext == ISD::EXTLOAD && Subtarget->hasSSSE3()) { assert(MemVT != RegVT && "Cannot extend to the same type"); assert(MemVT.isVector() && "Must load a vector from memory"); -- 2.34.1