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| author | Evan Cheng <evan.cheng@apple.com> | 2009-02-04 09:21:58 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-02-04 09:21:58 +0000 |
| commit | 5caa883afc2c768c293757d4ca30d85b9094e876 (patch) | |
| tree | 2450fe71a11290677baa518a53f069a5ddc7d8c7 | |
| parent | 45e94d68d7c99235cf4decc72812445b214df40e (diff) | |
| download | external_llvm-5caa883afc2c768c293757d4ca30d85b9094e876.zip external_llvm-5caa883afc2c768c293757d4ca30d85b9094e876.tar.gz external_llvm-5caa883afc2c768c293757d4ca30d85b9094e876.tar.bz2 | |
Don't call isInvariantLoad twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63729 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/MachineLICM.cpp | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp index 0a9f720..10ee8d6 100644 --- a/lib/CodeGen/MachineLICM.cpp +++ b/lib/CodeGen/MachineLICM.cpp @@ -276,18 +276,11 @@ static bool HasOnlyPHIUses(unsigned Reg, MachineRegisterInfo *RegInfo) { bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); - bool isInvLoad = false; - if (TID.mayLoad()) { - isInvLoad = TII->isInvariantLoad(&MI); - if (!isInvLoad) - return false; - } - // FIXME: For now, only hoist re-materilizable instructions. LICM will // increase register pressure. We want to make sure it doesn't increase // spilling. - if (!isInvLoad && (!TID.isRematerializable() || - !TII->isTriviallyReMaterializable(&MI))) + if (!TID.mayLoad() && (!TID.isRematerializable() || + !TII->isTriviallyReMaterializable(&MI))) return false; if (!TID.isAsCheapAsAMove()) |