const uint16_t *SubRegIndices; // Pointer to the subreg lookup
// array.
unsigned NumSubRegIndices; // Number of subreg indices.
+ const uint16_t *RegEncodingTable; // Pointer to array of register
+ // encodings.
unsigned L2DwarfRegsSize;
unsigned EHL2DwarfRegsSize;
const MCRegisterClass *C, unsigned NC,
const uint16_t *RL,
const uint16_t *SubIndices,
- unsigned NumIndices) {
+ unsigned NumIndices,
+ const uint16_t *RET) {
Desc = D;
NumRegs = NR;
RAReg = RA;
NumClasses = NC;
SubRegIndices = SubIndices;
NumSubRegIndices = NumIndices;
+ RegEncodingTable = RET;
}
/// mapLLVMRegsToDwarfRegs - Used to initialize LLVM register to Dwarf
assert(i < getNumRegClasses() && "Register Class ID out of range");
return Classes[i];
}
+
+ /// getEncodingValue - Returns the encoding for RegNo
+ uint16_t getEncodingValue(unsigned RegNo) const {
+ assert(RegNo < NumRegs &&
+ "Attempting to get encoding for invalid register number!");
+ return RegEncodingTable[RegNo];
+ }
+
};
} // End llvm namespace
EmitRegMappingTables(OS, Regs, false);
+ // Emit Reg encoding table
+ OS << "extern const uint16_t " << TargetName;
+ OS << "RegEncodingTable[] = {\n";
+ // Add entry for NoRegister
+ OS << " 0,\n";
+ for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
+ Record *Reg = Regs[i]->TheDef;
+ BitsInit *BI = Reg->getValueAsBitsInit("HWEncoding");
+ uint64_t Value = 0;
+ for (unsigned b = 0, be = BI->getNumBits(); b != be; ++b) {
+ if (BitInit *B = dynamic_cast<BitInit*>(BI->getBit(b)))
+ Value |= (uint64_t)B->getValue() << b;
+ }
+ OS << " " << Value << ",\n";
+ }
+ OS << "};\n"; // End of HW encoding table
+
// MCRegisterInfo initialization routine.
OS << "static inline void Init" << TargetName
<< "MCRegisterInfo(MCRegisterInfo *RI, unsigned RA, "
<< RegisterClasses.size() << ", " << TargetName << "RegLists, ";
if (SubRegIndices.size() != 0)
OS << "(uint16_t*)" << TargetName << "SubRegTable, "
- << SubRegIndices.size() << ");\n\n";
+ << SubRegIndices.size() << ",\n";
else
- OS << "NULL, 0);\n\n";
+ OS << "NULL, 0,\n";
+
+ OS << " " << TargetName << "RegEncodingTable);\n\n";
EmitRegMapping(OS, Regs, false);
if (SubRegIndices.size() != 0)
OS << "extern const uint16_t *get" << TargetName
<< "SubRegTable();\n";
+ OS << "extern const uint16_t " << TargetName << "RegEncodingTable[];\n";
EmitRegMappingTables(OS, Regs, true);
<< " ";
if (SubRegIndices.size() != 0)
OS << "get" << TargetName << "SubRegTable(), "
- << SubRegIndices.size() << ");\n\n";
+ << SubRegIndices.size() << ",\n";
else
- OS << "NULL, 0);\n\n";
+ OS << "NULL, 0,\n";
+
+ OS << " " << TargetName << "RegEncodingTable);\n\n";
EmitRegMapping(OS, Regs, true);