typedef const TargetRegisterClass * const * regclass_iterator;
private:
const TargetRegisterDesc *Desc; // Pointer to the descriptor array
+ const char *const *SubRegIndexNames; // Names of subreg indexes.
unsigned NumRegs; // Number of entries in the array
regclass_iterator RegClassBegin, RegClassEnd; // List of regclasses
TargetRegisterInfo(const TargetRegisterDesc *D, unsigned NR,
regclass_iterator RegClassBegin,
regclass_iterator RegClassEnd,
+ const char *const *subregindexnames,
int CallFrameSetupOpcode = -1,
int CallFrameDestroyOpcode = -1,
const unsigned* subregs = 0,
return NumRegs;
}
+ /// getSubRegIndexName - Return the human-readable symbolic target-specific
+ /// name for the specified SubRegIndex.
+ const char *getSubRegIndexName(unsigned SubIdx) const {
+ assert(SubIdx && "This is not a subregister index");
+ return SubRegIndexNames[SubIdx-1];
+ }
+
/// regsOverlap - Returns true if the two registers are equal or alias each
/// other. The registers may be virtual register.
bool regsOverlap(unsigned regA, unsigned regB) const {
OS << "%physreg" << getReg();
}
- if (getSubReg() != 0)
- OS << ':' << getSubReg();
+ if (getSubReg() != 0) {
+ if (TM)
+ OS << ':' << TM->getRegisterInfo()->getSubRegIndexName(getSubReg());
+ else
+ OS << ':' << getSubReg();
+ }
if (isDef() || isKill() || isDead() || isImplicit() || isUndef() ||
isEarlyClobber()) {
TargetRegisterInfo::TargetRegisterInfo(const TargetRegisterDesc *D, unsigned NR,
regclass_iterator RCB, regclass_iterator RCE,
+ const char *const *subregindexnames,
int CFSO, int CFDO,
const unsigned* subregs, const unsigned subregsize,
const unsigned* superregs, const unsigned superregsize,
: SubregHash(subregs), SubregHashSize(subregsize),
SuperregHash(superregs), SuperregHashSize(superregsize),
AliasesHash(aliases), AliasesHashSize(aliasessize),
- Desc(D), NumRegs(NR), RegClassBegin(RCB), RegClassEnd(RCE) {
+ Desc(D), SubRegIndexNames(subregindexnames), NumRegs(NR),
+ RegClassBegin(RCB), RegClassEnd(RCE) {
assert(NumRegs < FirstVirtualRegister &&
"Target has too many physical registers!");
OS << "Empty_SuperRegsSet },\n";
}
OS << " };\n"; // End of register descriptors...
+
+ // Emit SubRegIndex names, skipping 0
+ const std::vector<Record*> SubRegIndices = Target.getSubRegIndices();
+ OS << "\n const char *const SubRegIndexTable[] = { \"";
+ for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) {
+ OS << SubRegIndices[i]->getName();
+ if (i+1 != e)
+ OS << "\", \"";
+ }
+ OS << "\" };\n\n";
OS << "}\n\n"; // End of anonymous namespace...
std::string ClassName = Target.getName() + "GenRegisterInfo";
OS << ClassName << "::" << ClassName
<< "(int CallFrameSetupOpcode, int CallFrameDestroyOpcode)\n"
<< " : TargetRegisterInfo(RegisterDescriptors, " << Registers.size()+1
- << ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n "
+ << ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n"
+ << " SubRegIndexTable,\n"
<< " CallFrameSetupOpcode, CallFrameDestroyOpcode,\n"
<< " SubregHashTable, SubregHashTableSize,\n"
<< " SuperregHashTable, SuperregHashTableSize,\n"