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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-10 02:58:51 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-10 02:58:51 +0000 |
| commit | c9df025e33ac435adb3b3318d237c36ca7cec659 (patch) | |
| tree | 80a9dfcbb33fcfa3fbfdff2b2f9e6ba80ed170fc /lib/CodeGen/RegAllocFast.cpp | |
| parent | fdc8f2d2604877d80f64e309d4b03ea67addf037 (diff) | |
| download | llvm-c9df025e33ac435adb3b3318d237c36ca7cec659.tar.gz llvm-c9df025e33ac435adb3b3318d237c36ca7cec659.tar.bz2 llvm-c9df025e33ac435adb3b3318d237c36ca7cec659.tar.xz | |
Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.
These functions not longer assert when passed 0, but simply return false instead.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocFast.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index 6666d9aaf4..57934775e4 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -656,7 +656,8 @@ void RAFast::handleThroughOperands(MachineInstr *MI, MachineOperand &MO = MI->getOperand(i); if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); - if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg)) continue; + if (!TargetRegisterInfo::isVirtualRegister(Reg)) + continue; if (MO.isEarlyClobber() || MI->isRegTiedToDefOperand(i) || (MO.getSubReg() && MI->readsVirtualRegister(Reg))) { if (ThroughRegs.insert(Reg)) @@ -688,7 +689,7 @@ void RAFast::handleThroughOperands(MachineInstr *MI, MachineOperand &MO = MI->getOperand(i); if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); - if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg)) continue; + if (!TargetRegisterInfo::isVirtualRegister(Reg)) continue; if (MO.isUse()) { unsigned DefIdx = 0; if (!MI->isRegTiedToDefOperand(i, &DefIdx)) continue; @@ -794,7 +795,7 @@ void RAFast::AllocateBasicBlock() { MachineOperand &MO = MI->getOperand(i); if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); - if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg)) continue; + if (!TargetRegisterInfo::isVirtualRegister(Reg)) continue; LiveDbgValueMap[Reg] = MI; LiveRegMap::iterator LRI = LiveVirtRegs.find(Reg); if (LRI != LiveVirtRegs.end()) @@ -909,7 +910,7 @@ void RAFast::AllocateBasicBlock() { MachineOperand &MO = MI->getOperand(i); if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); - if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg)) continue; + if (!TargetRegisterInfo::isVirtualRegister(Reg)) continue; if (MO.isUse()) { LiveRegMap::iterator LRI = reloadVirtReg(MI, i, Reg, CopyDst); unsigned PhysReg = LRI->second.PhysReg; |