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MachineRegisterInfo: Make it clear that hints are for vregs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233986 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2015-04-03 00:18:33 +00:00
parent 7d4d5d39cf
commit b2e4ca21f4
1 changed files with 10 additions and 7 deletions
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17
include/llvm/CodeGen/MachineRegisterInfo.h
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@ -620,22 +620,25 @@ public:
/// setRegAllocationHint - Specify a register allocation hint for the
/// specified virtual register.
void setRegAllocationHint(unsigned Reg, unsigned Type, unsigned PrefReg) {
RegAllocHints[Reg].first = Type;
RegAllocHints[Reg].second = PrefReg;
void setRegAllocationHint(unsigned VReg, unsigned Type, unsigned PrefReg) {
assert(TargetRegisterInfo::isVirtualRegister(VReg));
RegAllocHints[VReg].first = Type;
RegAllocHints[VReg].second = PrefReg;
}
/// getRegAllocationHint - Return the register allocation hint for the
/// specified virtual register.
std::pair<unsigned, unsigned>
getRegAllocationHint(unsigned Reg) const {
return RegAllocHints[Reg];
getRegAllocationHint(unsigned VReg) const {
assert(TargetRegisterInfo::isVirtualRegister(VReg));
return RegAllocHints[VReg];
}
/// getSimpleHint - Return the preferred register allocation hint, or 0 if a
/// standard simple hint (Type == 0) is not set.
unsigned getSimpleHint(unsigned Reg) const {
std::pair<unsigned, unsigned> Hint = getRegAllocationHint(Reg);
unsigned getSimpleHint(unsigned VReg) const {
assert(TargetRegisterInfo::isVirtualRegister(VReg));
std::pair<unsigned, unsigned> Hint = getRegAllocationHint(VReg);
return Hint.first ? 0 : Hint.second;
}