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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-01 20:36:54 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-01 20:36:54 +0000 |
| commit | 92a0083944c2ac5ab5b7b54d88113f41862eaaef (patch) | |
| tree | 80e6295842a883a4d1fdcc735dd7963fe6e5abfc /llvm/lib/CodeGen/MachineCSE.cpp | |
| parent | e5476db2d8627a82b9af6fc2f153a3f130f0e770 (diff) | |
| download | bcm5719-llvm-92a0083944c2ac5ab5b7b54d88113f41862eaaef.tar.gz bcm5719-llvm-92a0083944c2ac5ab5b7b54d88113f41862eaaef.zip | |
Switch some getAliasSet clients to MCRegAliasIterator.
MCRegAliasIterator can optionally visit the register itself, allowing
for simpler code.
llvm-svn: 157837
Diffstat (limited to 'llvm/lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineCSE.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp index a63688e9ec6..f2539baabd8 100644 --- a/llvm/lib/CodeGen/MachineCSE.cpp +++ b/llvm/lib/CodeGen/MachineCSE.cpp @@ -216,11 +216,10 @@ bool MachineCSE::hasLivePhysRegDefUses(const MachineInstr *MI, if (MO.isDef() && (MO.isDead() || isPhysDefTriviallyDead(Reg, I, MBB->end()))) continue; - PhysRefs.insert(Reg); + for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) + PhysRefs.insert(*AI); if (MO.isDef()) PhysDefs.push_back(Reg); - for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) - PhysRefs.insert(*Alias); } return !PhysRefs.empty(); |
