diff options
Diffstat (limited to 'lib/CodeGen/DeadMachineInstructionElim.cpp')
| -rw-r--r-- | lib/CodeGen/DeadMachineInstructionElim.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp index 9d7ec06..a0544d0 100644 --- a/lib/CodeGen/DeadMachineInstructionElim.cpp +++ b/lib/CodeGen/DeadMachineInstructionElim.cpp @@ -11,6 +11,7 @@ // //===----------------------------------------------------------------------===// +#define DEBUG_TYPE "codegen-dce" #include "llvm/CodeGen/Passes.h" #include "llvm/Pass.h" #include "llvm/CodeGen/MachineFunctionPass.h" @@ -19,8 +20,11 @@ #include "llvm/Support/raw_ostream.h" #include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetMachine.h" +#include "llvm/ADT/Statistic.h" using namespace llvm; +STATISTIC(NumDeletes, "Number of dead instructions deleted"); + namespace { class DeadMachineInstructionElim : public MachineFunctionPass { virtual bool runOnMachineFunction(MachineFunction &MF); @@ -126,6 +130,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) { DEBUG(dbgs() << "DeadMachineInstructionElim: DELETING: " << *MI); AnyChanges = true; MI->eraseFromParent(); + ++NumDeletes; MIE = MBB->rend(); // MII is now pointing to the next instruction to process, // so don't increment it. |