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Fix typos in the comments. 

llvm-svn: 126565
This commit is contained in:
Nadav Rotem 2011-02-27 07:40:43 +00:00
parent 98eecaf0a9
commit b00913028f
1 changed files with 7 additions and 4 deletions
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11
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -3726,7 +3726,8 @@ SDValue DAGCombiner::visitSIGN_EXTEND(SDNode *N) {
// fold (sext (load x)) -> (sext (truncate (sextload x)))
// None of the supported targets knows how to perform load and sign extend
// in one instruction. We only perform this transformation on scalars.
// on vectors in one instruction. We only perform this transformation on
// scalars.
if (ISD::isNON_EXTLoad(N0.getNode()) && !VT.isVector() &&
((!LegalOperations && !cast<LoadSDNode>(N0)->isVolatile()) ||
TLI.isLoadExtLegal(ISD::SEXTLOAD, N0.getValueType()))) {
@ -3930,7 +3931,8 @@ SDValue DAGCombiner::visitZERO_EXTEND(SDNode *N) {
// fold (zext (load x)) -> (zext (truncate (zextload x)))
// None of the supported targets knows how to perform load and vector_zext
// in one instruction. We only perform this transformation on scalar zext.
// on vectors in one instruction. We only perform this transformation on
// scalars.
if (ISD::isNON_EXTLoad(N0.getNode()) && !VT.isVector() &&
((!LegalOperations && !cast<LoadSDNode>(N0)->isVolatile()) ||
TLI.isLoadExtLegal(ISD::ZEXTLOAD, N0.getValueType()))) {
@ -4139,7 +4141,8 @@ SDValue DAGCombiner::visitANY_EXTEND(SDNode *N) {
// fold (aext (load x)) -> (aext (truncate (extload x)))
// None of the supported targets knows how to perform load and any_ext
// in one instruction. We only perform this transformation on scalars.
// on vectors in one instruction. We only perform this transformation on
// scalars.
if (ISD::isNON_EXTLoad(N0.getNode()) && !VT.isVector() &&
((!LegalOperations && !cast<LoadSDNode>(N0)->isVolatile()) ||
TLI.isLoadExtLegal(ISD::EXTLOAD, N0.getValueType()))) {
@ -4552,7 +4555,7 @@ SDValue DAGCombiner::visitTRUNCATE(SDNode *N) {
// See if we can simplify the input to this truncate through knowledge that
// only the low bits are being used.
// For example "trunc (or (shl x, 8), y)" // -> trunc y
// Currenly we only perform this optimization on scalars because vectors
// Currently we only perform this optimization on scalars because vectors
// may have different active low bits.
if (!VT.isVector()) {
SDValue Shorter =