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author | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
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committer | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
commit | 5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd (patch) | |
tree | 88fa5be8f6cf6e9a222e79c8806f29c8841925d1 /lib/CodeGen/PeepholeOptimizer.cpp | |
parent | 5729c5848c74a2413cc1d32a5f3c746aff5d9ccc (diff) | |
download | llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.gz llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.bz2 llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.xz |
Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.
For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PeepholeOptimizer.cpp')
-rw-r--r-- | lib/CodeGen/PeepholeOptimizer.cpp | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp index bbc7ce2d0a..2a5652ac3d 100644 --- a/lib/CodeGen/PeepholeOptimizer.cpp +++ b/lib/CodeGen/PeepholeOptimizer.cpp @@ -292,7 +292,7 @@ bool PeepholeOptimizer::OptimizeBitcastInstr(MachineInstr *MI, assert(Def && Src && "Malformed bitcast instruction!"); MachineInstr *DefMI = MRI->getVRegDef(Src); - if (!DefMI || !DefMI->getDesc().isBitcast()) + if (!DefMI || !DefMI->isBitcast()) return false; unsigned SrcSrc = 0; @@ -353,7 +353,7 @@ bool PeepholeOptimizer::isMoveImmediate(MachineInstr *MI, SmallSet<unsigned, 4> &ImmDefRegs, DenseMap<unsigned, MachineInstr*> &ImmDefMIs) { const MCInstrDesc &MCID = MI->getDesc(); - if (!MCID.isMoveImmediate()) + if (!MI->isMoveImmediate()) return false; if (MCID.getNumDefs() != 1) return false; @@ -428,9 +428,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { continue; } - const MCInstrDesc &MCID = MI->getDesc(); - - if (MCID.isBitcast()) { + if (MI->isBitcast()) { if (OptimizeBitcastInstr(MI, MBB)) { // MI is deleted. LocalMIs.erase(MI); @@ -438,7 +436,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { MII = First ? I->begin() : llvm::next(PMII); continue; } - } else if (MCID.isCompare()) { + } else if (MI->isCompare()) { if (OptimizeCmpInstr(MI, MBB)) { // MI is deleted. LocalMIs.erase(MI); |