diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp b/contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp index 8964269..a54217f 100644 --- a/contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp +++ b/contrib/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp @@ -13,14 +13,14 @@ #define DEBUG_TYPE "codegen-dce" #include "llvm/CodeGen/Passes.h" -#include "llvm/Pass.h" +#include "llvm/ADT/Statistic.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineRegisterInfo.h" +#include "llvm/Pass.h" #include "llvm/Support/Debug.h" #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"); @@ -99,15 +99,6 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) { // Start out assuming that reserved registers are live out of this block. LivePhysRegs = MRI->getReservedRegs(); - // Also add any explicit live-out physregs for this block. - if (!MBB->empty() && MBB->back().isReturn()) - for (MachineRegisterInfo::liveout_iterator LOI = MRI->liveout_begin(), - LOE = MRI->liveout_end(); LOI != LOE; ++LOI) { - unsigned Reg = *LOI; - if (TargetRegisterInfo::isPhysicalRegister(Reg)) - LivePhysRegs.set(Reg); - } - // Add live-ins from sucessors to LivePhysRegs. Normally, physregs are not // live across blocks, but some targets (x86) can have flags live out of a // block. |
