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Match more post-indexed ops. 

llvm-svn: 31569
This commit is contained in:
Evan Cheng 2006-11-08 20:27:27 +00:00
parent fd6e54439a
commit 85e54223cd
1 changed files with 6 additions and 2 deletions
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8
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -301,8 +301,12 @@ namespace {
SDOperand BasePtr;
SDOperand Offset;
ISD::MemOpAddrMode AM = ISD::UNINDEXED;
if (TLI.getPostIndexedAddressParts(Op, VT, BasePtr, Offset, AM,DAG) &&
BasePtr == Ptr) {
if (TLI.getPostIndexedAddressParts(Op, VT, BasePtr, Offset, AM,DAG)) {
if (Ptr == Offset)
std::swap(BasePtr, Offset);
if (Ptr != BasePtr)
continue;
// Try turning it into a post-indexed load / store except when
// 1) Op must be independent of N, i.e. Op is neither a predecessor
// nor a successor of N. Otherwise, if Op is folded that would