diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/TableGen/RegisterInfoEmitter.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/utils/TableGen/RegisterInfoEmitter.cpp b/utils/TableGen/RegisterInfoEmitter.cpp index 5d92693..156c145 100644 --- a/utils/TableGen/RegisterInfoEmitter.cpp +++ b/utils/TableGen/RegisterInfoEmitter.cpp @@ -80,6 +80,8 @@ void RegisterInfoEmitter::runHeader(raw_ostream &OS) { << "(int CallFrameSetupOpcode = -1, int CallFrameDestroyOpcode = -1);\n" << " virtual int getDwarfRegNumFull(unsigned RegNum, " << "unsigned Flavour) const;\n" + << " virtual int getLLVMRegNumFull(unsigned DwarfRegNum, " + << "unsigned Flavour) const;\n" << " virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const = 0;\n" << " virtual bool needsStackRealignment(const MachineFunction &) const\n" << " { return false; }\n" @@ -989,6 +991,33 @@ void RegisterInfoEmitter::run(raw_ostream &OS) { for (unsigned i = I->second.size(), e = maxLength; i != e; ++i) I->second.push_back(-1); + // Emit reverse information about the dwarf register numbers. + OS << "int " << ClassName << "::getLLVMRegNumFull(unsigned DwarfRegNum, " + << "unsigned Flavour) const {\n" + << " switch (Flavour) {\n" + << " default:\n" + << " assert(0 && \"Unknown DWARF flavour\");\n" + << " return -1;\n"; + + for (unsigned i = 0, e = maxLength; i != e; ++i) { + OS << " case " << i << ":\n" + << " switch (DwarfRegNum) {\n" + << " default:\n" + << " assert(0 && \"Invalid DwarfRegNum\");\n" + << " return -1;\n"; + + for (DwarfRegNumsMapTy::iterator + I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) { + int DwarfRegNo = I->second[i]; + if (DwarfRegNo >= 0) + OS << " case " << DwarfRegNo << ":\n" + << " return " << getQualifiedName(I->first) << ";\n"; + } + OS << " };\n"; + } + + OS << " };\n}\n\n"; + for (unsigned i = 0, e = Regs.size(); i != e; ++i) { Record *Reg = Regs[i].TheDef; const RecordVal *V = Reg->getValue("DwarfAlias"); |