diff options
Diffstat (limited to 'lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | lib/CodeGen/MachineSink.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp index e5c34201ef..0f3b33f54d 100644 --- a/lib/CodeGen/MachineSink.cpp +++ b/lib/CodeGen/MachineSink.cpp @@ -20,6 +20,7 @@ #include "llvm/CodeGen/Passes.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/MachineDominators.h" +#include "llvm/Analysis/AliasAnalysis.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetMachine.h" @@ -39,6 +40,7 @@ namespace { MachineFunction *CurMF; // Current MachineFunction MachineRegisterInfo *RegInfo; // Machine register information MachineDominatorTree *DT; // Machine dominator tree + AliasAnalysis *AA; BitVector AllocatableSet; // Which physregs are allocatable? public: @@ -50,6 +52,7 @@ namespace { virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesCFG(); MachineFunctionPass::getAnalysisUsage(AU); + AU.addRequired<AliasAnalysis>(); AU.addRequired<MachineDominatorTree>(); AU.addPreserved<MachineDominatorTree>(); } @@ -100,6 +103,7 @@ bool MachineSinking::runOnMachineFunction(MachineFunction &MF) { TRI = TM->getRegisterInfo(); RegInfo = &CurMF->getRegInfo(); DT = &getAnalysis<MachineDominatorTree>(); + AA = &getAnalysis<AliasAnalysis>(); AllocatableSet = TRI->getAllocatableSet(*CurMF); bool EverMadeChange = false; @@ -151,7 +155,7 @@ bool MachineSinking::ProcessBlock(MachineBasicBlock &MBB) { /// instruction out of its current block into a successor. bool MachineSinking::SinkInstruction(MachineInstr *MI, bool &SawStore) { // Check if it's safe to move the instruction. - if (!MI->isSafeToMove(TII, SawStore)) + if (!MI->isSafeToMove(TII, SawStore, AA)) return false; // FIXME: This should include support for sinking instructions within the |