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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 | f152fe8d487c46873bbdd4abab43200f783e978b (patch) | |
| tree | 42739be7996946e18e2b54ca3c1d801a96f73207 /lib/CodeGen/MachineCSE.cpp | |
| parent | 73c2f7f5ed767a6fc062fd198551be902b7b7d5b (diff) | |
| download | llvm-f152fe8d487c46873bbdd4abab43200f783e978b.tar.gz llvm-f152fe8d487c46873bbdd4abab43200f783e978b.tar.bz2 llvm-f152fe8d487c46873bbdd4abab43200f783e978b.tar.xz | |
Switch some getAliasSet clients to MCRegAliasIterator.
MCRegAliasIterator can optionally visit the register itself, allowing
for simpler code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157837 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index a63688e9ec..f2539baabd 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/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(); |