6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Replace EVT with MVT in isVectorShift. Keeps compiler from generating unneeded checks and handling for extended types.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188362 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2013-08-14 06:21:10 +00:00
parent cc60bbc739
commit d36b53e764
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Target/X86/X86ISelLowering.cpp
View File

@ -5076,7 +5076,8 @@ bool isShuffleMaskConsecutive(ShuffleVectorSDNode *SVOp,
/// logical left shift of a vector.
static bool isVectorShiftRight(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG,
bool &isLeft, SDValue &ShVal, unsigned &ShAmt) {
unsigned NumElems = SVOp->getValueType(0).getVectorNumElements();
unsigned NumElems =
SVOp->getValueType(0).getSimpleVT().getVectorNumElements();
unsigned NumZeros = getNumOfConsecutiveZeros(
SVOp, NumElems, false /* check zeros from right */, DAG,
SVOp->getMaskElt(0));
@ -5110,7 +5111,8 @@ static bool isVectorShiftRight(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG,
/// logical left shift of a vector.
static bool isVectorShiftLeft(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG,
bool &isLeft, SDValue &ShVal, unsigned &ShAmt) {
unsigned NumElems = SVOp->getValueType(0).getVectorNumElements();
unsigned NumElems =
SVOp->getValueType(0).getSimpleVT().getVectorNumElements();
unsigned NumZeros = getNumOfConsecutiveZeros(
SVOp, NumElems, true /* check zeros from left */, DAG,
NumElems - SVOp->getMaskElt(NumElems - 1) - 1);
@ -5146,7 +5148,7 @@ static bool isVectorShift(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG,
bool &isLeft, SDValue &ShVal, unsigned &ShAmt) {
// Although the logic below support any bitwidth size, there are no
// shift instructions which handle more than 128-bit vectors.
if (!SVOp->getValueType(0).is128BitVector())
if (!SVOp->getValueType(0).getSimpleVT().is128BitVector())
return false;
if (isVectorShiftLeft(SVOp, DAG, isLeft, ShVal, ShAmt) ||