diff options
Diffstat (limited to 'llvm/lib/CodeGen/ReachingDefAnalysis.cpp')
-rw-r--r-- | llvm/lib/CodeGen/ReachingDefAnalysis.cpp | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/llvm/lib/CodeGen/ReachingDefAnalysis.cpp b/llvm/lib/CodeGen/ReachingDefAnalysis.cpp index d16e90a7e0b4..c850571da2ed 100644 --- a/llvm/lib/CodeGen/ReachingDefAnalysis.cpp +++ b/llvm/lib/CodeGen/ReachingDefAnalysis.cpp @@ -7,6 +7,7 @@ //===----------------------------------------------------------------------===// #include "llvm/ADT/SmallSet.h" +#include "llvm/ADT/SetOperations.h" #include "llvm/CodeGen/LivePhysRegs.h" #include "llvm/CodeGen/ReachingDefAnalysis.h" #include "llvm/CodeGen/TargetRegisterInfo.h" @@ -124,7 +125,7 @@ void ReachingDefAnalysis::processDefs(MachineInstr *MI) { for (MCRegUnitIterator Unit(MO.getReg().asMCReg(), TRI); Unit.isValid(); ++Unit) { // This instruction explicitly defines the current reg unit. - LLVM_DEBUG(dbgs() << printReg(*Unit, TRI) << ":\t" << CurInstr + LLVM_DEBUG(dbgs() << printRegUnit(*Unit, TRI) << ":\t" << CurInstr << '\t' << *MI); // How many instructions since this reg unit was last written? @@ -660,10 +661,7 @@ void ReachingDefAnalysis::collectKilledOperands(MachineInstr *MI, SmallPtrSet<MachineInstr*, 4> Uses; getGlobalUses(Def, PhysReg, Uses); - for (auto *Use : Uses) - if (!Dead.count(Use)) - return false; - return true; + return llvm::set_is_subset(Uses, Dead); }; for (auto &MO : MI->operands()) { @@ -688,9 +686,8 @@ bool ReachingDefAnalysis::isSafeToDefRegAt(MachineInstr *MI, MCRegister PhysReg, if (auto *Def = getReachingLocalMIDef(MI, PhysReg)) { SmallPtrSet<MachineInstr*, 2> Uses; getGlobalUses(Def, PhysReg, Uses); - for (auto *Use : Uses) - if (!Ignore.count(Use)) - return false; + if (!llvm::set_is_subset(Uses, Ignore)) + return false; } else return false; } |