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Add predicates for checking if a virtual register has a physical

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register mapping or a stack slot mapping.

llvm-svn: 11795
This commit is contained in:
Alkis Evlogimenos 2004-02-24 06:30:36 +00:00
parent 9f2c8c7ea5
commit 042f01039b
1 changed files with 8 additions and 0 deletions
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8
lib/CodeGen/VirtRegMap.h
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@ -57,6 +57,10 @@ namespace llvm {
v2ssMap_(mf.getSSARegMap()->getNumVirtualRegs(), NO_STACK_SLOT) {
}
bool hasPhys(unsigned virtReg) const {
return getPhys(virtReg) != NO_PHYS_REG;
}
unsigned getPhys(unsigned virtReg) const {
assert(MRegisterInfo::isVirtualRegister(virtReg));
return v2pMap_[toIndex(virtReg)];
@ -78,6 +82,10 @@ namespace llvm {
v2pMap_[toIndex(virtReg)] = NO_PHYS_REG;
}
bool hasStackSlot(unsigned virtReg) const {
return getStackSlot(virtReg) != NO_STACK_SLOT;
}
int getStackSlot(unsigned virtReg) const {
assert(MRegisterInfo::isVirtualRegister(virtReg));
return v2ssMap_[toIndex(virtReg)];