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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-15 21:57:41 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-15 21:57:41 +0000 |
| commit | fb9ebbf236974beac31705eaeb9f50ab585af6ab (patch) | |
| tree | 7d01bb6c43ca1854b208c80f34b6158644eb78f9 /lib/CodeGen/LiveVariables.cpp | |
| parent | e4f273908bd37df5f0f6b2c575dcb2af99f6b85b (diff) | |
| download | llvm-fb9ebbf236974beac31705eaeb9f50ab585af6ab.tar.gz llvm-fb9ebbf236974beac31705eaeb9f50ab585af6ab.tar.bz2 llvm-fb9ebbf236974beac31705eaeb9f50ab585af6ab.tar.xz | |
Switch most getReservedRegs() clients to the MRI equivalent.
Using the cached bit vector in MRI avoids comstantly allocating and
recomputing the reserved register bit vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165983 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveVariables.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index 7359bb92a1..6ea933d430 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -503,8 +503,6 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) { MRI = &mf.getRegInfo(); TRI = MF->getTarget().getRegisterInfo(); - ReservedRegisters = TRI->getReservedRegs(mf); - unsigned NumRegs = TRI->getNumRegs(); PhysRegDef = new MachineInstr*[NumRegs]; PhysRegUse = new MachineInstr*[NumRegs]; @@ -588,7 +586,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) { unsigned MOReg = UseRegs[i]; if (TargetRegisterInfo::isVirtualRegister(MOReg)) HandleVirtRegUse(MOReg, MBB, MI); - else if (!ReservedRegisters[MOReg]) + else if (!MRI->isReserved(MOReg)) HandlePhysRegUse(MOReg, MI); } @@ -601,7 +599,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &mf) { unsigned MOReg = DefRegs[i]; if (TargetRegisterInfo::isVirtualRegister(MOReg)) HandleVirtRegDef(MOReg, MI); - else if (!ReservedRegisters[MOReg]) + else if (!MRI->isReserved(MOReg)) HandlePhysRegDef(MOReg, MI, Defs); } UpdatePhysRegDefs(MI, Defs); |