X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FMachineRegisterInfo.cpp;h=e9612f3cfde0866f94f57ccc9df1fe795e27fafe;hb=7ee57ccbc603e74b38e745304694cbb643f4b9f9;hp=6da1b685a91221f4dd92fb436c637d8e00b1445f;hpb=3da024594f8b34fdf9ff24d2400f969ca312ddb8;p=oota-llvm.git

diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp
index 6da1b685a91..e9612f3cfde 100644
--- a/lib/CodeGen/MachineRegisterInfo.cpp
+++ b/lib/CodeGen/MachineRegisterInfo.cpp
@@ -23,22 +23,15 @@ using namespace llvm;
 // Pin the vtable to this file.
 void MachineRegisterInfo::Delegate::anchor() {}
 
-MachineRegisterInfo::MachineRegisterInfo(const TargetMachine &TM)
-  : TM(TM), TheDelegate(nullptr), IsSSA(true), TracksLiveness(true) {
+MachineRegisterInfo::MachineRegisterInfo(const MachineFunction *MF)
+  : MF(MF), TheDelegate(nullptr), IsSSA(true), TracksLiveness(true) {
   VRegInfo.reserve(256);
   RegAllocHints.reserve(256);
   UsedRegUnits.resize(getTargetRegisterInfo()->getNumRegUnits());
   UsedPhysRegMask.resize(getTargetRegisterInfo()->getNumRegs());
 
   // Create the physreg use/def lists.
-  PhysRegUseDefLists =
-    new MachineOperand*[getTargetRegisterInfo()->getNumRegs()];
-  memset(PhysRegUseDefLists, 0,
-         sizeof(MachineOperand*)*getTargetRegisterInfo()->getNumRegs());
-}
-
-MachineRegisterInfo::~MachineRegisterInfo() {
-  delete [] PhysRegUseDefLists;
+  PhysRegUseDefLists.resize(getTargetRegisterInfo()->getNumRegs(), nullptr);
 }
 
 /// setRegClass - Set the register class of the specified virtual register.