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simplify some code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45642 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-01-06 01:12:44 +00:00
parent fe71893183
commit 951740afb4
2 changed files with 12 additions and 19 deletions
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24
utils/TableGen/InstrInfoEmitter.cpp
View File

@ -175,10 +175,7 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
else
OS << Inst.Name;
unsigned ItinClass = !IsItineraries ? 0 :
ItinClassNumber(Inst.TheDef->getValueAsDef("Itinerary")->getName());
OS << "\",\t" << ItinClass << ", 0";
OS << "\",\t" << getItinClassNumber(Inst.TheDef) << ", 0";
// Try to determine (from the pattern), if the instruction is a store.
bool isStore = false;
@ -258,28 +255,23 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
}
struct LessRecord {
struct RecordNameComparator {
bool operator()(const Record *Rec1, const Record *Rec2) const {
return Rec1->getName() < Rec2->getName();
}
};
void InstrInfoEmitter::GatherItinClasses() {
std::vector<Record*> DefList =
Records.getAllDerivedDefinitions("InstrItinClass");
IsItineraries = !DefList.empty();
std::sort(DefList.begin(), DefList.end(), RecordNameComparator());
if (!IsItineraries) return;
std::sort(DefList.begin(), DefList.end(), LessRecord());
for (unsigned i = 0, N = DefList.size(); i < N; i++) {
Record *Def = DefList[i];
ItinClassMap[Def->getName()] = i;
}
for (unsigned i = 0, N = DefList.size(); i < N; i++)
ItinClassMap[DefList[i]->getName()] = i;
}
unsigned InstrInfoEmitter::ItinClassNumber(std::string ItinName) {
return ItinClassMap[ItinName];
unsigned InstrInfoEmitter::getItinClassNumber(const Record *InstRec) {
return ItinClassMap[InstRec->getValueAsDef("Itinerary")->getName()];
}
void InstrInfoEmitter::emitShiftedValue(Record *R, StringInit *Val,

7
utils/TableGen/InstrInfoEmitter.h
View File

@ -16,6 +16,7 @@
#define INSTRINFO_EMITTER_H
#include "TableGenBackend.h"
#include "CodeGenDAGPatterns.h"
#include <vector>
#include <map>
@ -28,11 +29,11 @@ class CodeGenInstruction;
class InstrInfoEmitter : public TableGenBackend {
RecordKeeper &Records;
bool IsItineraries;
CodeGenDAGPatterns CDP;
std::map<std::string, unsigned> ItinClassMap;
public:
InstrInfoEmitter(RecordKeeper &R) : Records(R), IsItineraries(false) {}
InstrInfoEmitter(RecordKeeper &R) : Records(R), CDP(R) { }
// run - Output the instruction set description, returning true on failure.
void run(std::ostream &OS);
@ -46,7 +47,7 @@ private:
std::map<std::vector<std::string>, unsigned> &OpInfo,
std::ostream &OS);
void GatherItinClasses();
unsigned ItinClassNumber(std::string ItinName);
unsigned getItinClassNumber(const Record *InstRec);
void emitShiftedValue(Record *R, StringInit *Val, IntInit *Shift,
std::ostream &OS);
std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst);