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Remove VirtRegMap::getRegAllocPref(). 

Now that there can be multiple hint registers from targets, it doesn't
make sense to have a function that returns 'the' preferred register.

llvm-svn: 169190
This commit is contained in:
Jakob Stoklund Olesen 2012-12-04 00:35:59 +00:00
parent 3bcdfc0ec1
commit 084665fa6d
2 changed files with 0 additions and 14 deletions
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3
llvm/include/llvm/CodeGen/VirtRegMap.h
View File

@ -126,9 +126,6 @@ namespace llvm {
grow();
}
/// @brief returns the register allocation preference.
unsigned getRegAllocPref(unsigned virtReg);
/// @brief returns true if VirtReg is assigned to its preferred physreg.
bool hasPreferredPhys(unsigned VirtReg);

11
llvm/lib/CodeGen/VirtRegMap.cpp
View File

@ -77,17 +77,6 @@ unsigned VirtRegMap::createSpillSlot(const TargetRegisterClass *RC) {
return SS;
}
unsigned VirtRegMap::getRegAllocPref(unsigned virtReg) {
std::pair<unsigned, unsigned> Hint = MRI->getRegAllocationHint(virtReg);
unsigned physReg = Hint.second;
if (TargetRegisterInfo::isVirtualRegister(physReg) && hasPhys(physReg))
physReg = getPhys(physReg);
if (Hint.first == 0)
return (TargetRegisterInfo::isPhysicalRegister(physReg))
? physReg : 0;
return TRI->ResolveRegAllocHint(Hint.first, physReg, *MF);
}
bool VirtRegMap::hasPreferredPhys(unsigned VirtReg) {
unsigned Hint = MRI->getSimpleHint(VirtReg);
if (!Hint)