6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-18 11:24:01 +00:00
Code Issues Projects Releases Wiki Activity

In CheckForLiveRegDef use TRI->getOverlaps.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122473 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2010-12-23 03:43:21 +00:00
parent 1b1658741a
commit cb7947b81b
1 changed files with 9 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
View File

@ -659,15 +659,18 @@ static void CheckForLiveRegDef(SUnit *SU, unsigned Reg,
SmallSet<unsigned, 4> &RegAdded, SmallSet<unsigned, 4> &RegAdded,
SmallVector<unsigned, 4> &LRegs, SmallVector<unsigned, 4> &LRegs,
const TargetRegisterInfo *TRI) { const TargetRegisterInfo *TRI) {
if (LiveRegDefs[Reg] && LiveRegDefs[Reg] != SU) { for (const unsigned *AliasI = TRI->getOverlaps(Reg); *AliasI; ++AliasI) {
// Check if Ref is live.
if (!LiveRegDefs[Reg]) continue;
// Allow multiple uses of the same def.
if (LiveRegDefs[Reg] == SU) continue;
// Add Reg to the set of interfering live regs.
if (RegAdded.insert(Reg)) if (RegAdded.insert(Reg))
LRegs.push_back(Reg); LRegs.push_back(Reg);
} }
for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
if (LiveRegDefs[*Alias] && LiveRegDefs[*Alias] != SU) {
if (RegAdded.insert(*Alias))
LRegs.push_back(*Alias);
}
} }
/// DelayForLiveRegsBottomUp - Returns true if it is necessary to delay /// DelayForLiveRegsBottomUp - Returns true if it is necessary to delay