maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[X86] Removed duplicate code. 

llvm-svn: 265274
This commit is contained in:
Simon Pilgrim 2016-04-03 20:40:35 +00:00
parent c6065e3a25
commit 0edd3d771a
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
llvm/lib/Target/X86/X86ISelLowering.cpp
View File

@ -28507,20 +28507,20 @@ static SDValue combineVectorTruncation(SDNode *N, SelectionDAG &DAG,
static SDValue combineTruncate(SDNode *N, SelectionDAG &DAG,
const X86Subtarget &Subtarget) {
EVT VT = N->getValueType(0);
SDValue Src = N->getOperand(0);
SDLoc DL(N);
// Try to detect AVG pattern first.
if (SDValue Avg = detectAVGPattern(Src, N->getValueType(0), DAG,
Subtarget, SDLoc(N)))
if (SDValue Avg = detectAVGPattern(Src, VT, DAG, Subtarget, DL))
return Avg;
// The bitcast source is a direct mmx result.
// Detect bitcasts between i32 to x86mmx
if (Src.getOpcode() == ISD::BITCAST && N->getValueType(0) == MVT::i32) {
if (Src.getOpcode() == ISD::BITCAST && VT == MVT::i32) {
SDValue BCSrc = Src.getOperand(0);
if (BCSrc.getValueType() == MVT::x86mmx)
return DAG.getNode(X86ISD::MMX_MOVD2W, SDLoc(N), MVT::i32, BCSrc);
return DAG.getNode(X86ISD::MMX_MOVD2W, DL, MVT::i32, BCSrc);
}
return combineVectorTruncation(N, DAG, Subtarget);