6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

Bug fix. Passive nodes are not in SUnitMap.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43922 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-11-09 01:27:11 +00:00
parent 77819419b8
commit 7da8f399bf
3 changed files with 20 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
View File

@@ -156,7 +156,7 @@ void ScheduleDAGRRList::CommuteNodesToReducePressure() {
continue;
SDNode *OpN = SU->Node->getOperand(j).Val;
SUnit *OpSU = SUnitMap[OpN][SU->InstanceNo];
SUnit *OpSU = isPassiveNode(OpN) ? NULL : SUnitMap[OpN][SU->InstanceNo];
if (OpSU && OperandSeen.count(OpSU) == 1) {
// Ok, so SU is not the last use of OpSU, but SU is two-address so
// it will clobber OpSU. Try to commute SU if no other source operands
@@ -165,7 +165,7 @@ void ScheduleDAGRRList::CommuteNodesToReducePressure() {
for (unsigned k = 0; k < NumOps; ++k) {
if (k != j) {
OpN = SU->Node->getOperand(k).Val;
OpSU = SUnitMap[OpN][SU->InstanceNo];
OpSU = isPassiveNode(OpN) ? NULL : SUnitMap[OpN][SU->InstanceNo];
if (OpSU && OperandSeen.count(OpSU) == 1) {
DoCommute = false;
break;
@@ -1252,7 +1252,8 @@ bool BURegReductionPriorityQueue<SF>::canClobber(SUnit *SU, SUnit *Op) {
for (unsigned i = 0; i != NumOps; ++i) {
if (TII->getOperandConstraint(Opc, i+NumRes, TOI::TIED_TO) != -1) {
SDNode *DU = SU->Node->getOperand(i).Val;
if (Op == (*SUnitMap)[DU][SU->InstanceNo])
if ((*SUnitMap).find(DU) != (*SUnitMap).end() &&
Op == (*SUnitMap)[DU][SU->InstanceNo])
return true;
}
}
@@ -1298,6 +1299,8 @@ void BURegReductionPriorityQueue<SF>::AddPseudoTwoAddrDeps() {
for (unsigned j = 0; j != NumOps; ++j) {
if (TII->getOperandConstraint(Opc, j+NumRes, TOI::TIED_TO) != -1) {
SDNode *DU = SU->Node->getOperand(j).Val;
if ((*SUnitMap).find(DU) == (*SUnitMap).end())
continue;
SUnit *DUSU = (*SUnitMap)[DU][SU->InstanceNo];
if (!DUSU) continue;
for (SUnit::succ_iterator I = DUSU->Succs.begin(),E = DUSU->Succs.end();