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Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.

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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
This commit is contained in:
Jakob Stoklund Olesen
2011-01-10 02:58:51 +00:00
parent fdc8f2d260
commit c9df025e33
20 changed files with 39 additions and 43 deletions
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3
lib/CodeGen/RegAllocLinearScan.cpp
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@@ -1421,8 +1421,7 @@ unsigned RALinScan::getFreePhysReg(LiveInterval* cur,
std::pair<unsigned, unsigned> Hint = mri_->getRegAllocationHint(cur->reg);
// Resolve second part of the hint (if possible) given the current allocation.
unsigned physReg = Hint.second;
if (physReg &&
TargetRegisterInfo::isVirtualRegister(physReg) && vrm_->hasPhys(physReg))
if (TargetRegisterInfo::isVirtualRegister(physReg) && vrm_->hasPhys(physReg))
physReg = vrm_->getPhys(physReg);
TargetRegisterClass::iterator I, E;