mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
//===-- llvm/SlotCalculator.h - Calculate value slots ------------*- C++ -*-==//
|
|
//
|
|
// This class calculates the slots that values will land in. This is useful for
|
|
// when writing bytecode or assembly out, because you have to know these things.
|
|
//
|
|
// Specifically, this class calculates the "type plane numbering" that you see
|
|
// for a function if you strip out all of the symbols in it. For assembly
|
|
// writing, this is used when a symbol does not have a name. For bytecode
|
|
// writing, this is always used, and the symbol table is added on later.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SLOTCALCULATOR_H
|
|
#define LLVM_SLOTCALCULATOR_H
|
|
|
|
#include <vector>
|
|
#include <map>
|
|
class Value;
|
|
class Module;
|
|
class Function;
|
|
class SymbolTable;
|
|
|
|
class SlotCalculator {
|
|
const Module *TheModule;
|
|
bool IgnoreNamedNodes; // Shall we not count named nodes?
|
|
|
|
typedef std::vector<const Value*> TypePlane;
|
|
std::vector<TypePlane> Table;
|
|
std::map<const Value *, unsigned> NodeMap;
|
|
|
|
// ModuleLevel - Used to keep track of which values belong to the module,
|
|
// and which values belong to the currently incorporated function.
|
|
//
|
|
std::vector<unsigned> ModuleLevel;
|
|
|
|
public:
|
|
SlotCalculator(const Module *M, bool IgnoreNamed);
|
|
// Start out in incorp state
|
|
SlotCalculator(const Function *M, bool IgnoreNamed);
|
|
inline ~SlotCalculator() {}
|
|
|
|
// getValSlot returns < 0 on error!
|
|
int getValSlot(const Value *D) const;
|
|
|
|
inline unsigned getNumPlanes() const { return Table.size(); }
|
|
inline unsigned getModuleLevel(unsigned Plane) const {
|
|
return Plane < ModuleLevel.size() ? ModuleLevel[Plane] : 0;
|
|
}
|
|
|
|
inline const TypePlane &getPlane(unsigned Plane) const {
|
|
return Table[Plane];
|
|
}
|
|
|
|
// If you'd like to deal with a function, use these two methods to get its
|
|
// data into the SlotCalculator!
|
|
//
|
|
void incorporateFunction(const Function *F);
|
|
void purgeFunction();
|
|
|
|
protected:
|
|
// insertVal - Insert a value into the value table... Return the slot that it
|
|
// occupies, or -1 if the declaration is to be ignored because of the
|
|
// IgnoreNamedNodes flag.
|
|
//
|
|
int insertVal(const Value *D, bool dontIgnore = false);
|
|
|
|
// insertValue - Values can be crammed into here at will... if they haven't
|
|
// been inserted already, they get inserted, otherwise they are ignored.
|
|
//
|
|
int insertValue(const Value *D);
|
|
|
|
// doInsertVal - Small helper function to be called only be insertVal.
|
|
int doInsertVal(const Value *D);
|
|
|
|
// processModule - Process all of the module level function declarations and
|
|
// types that are available.
|
|
//
|
|
void processModule();
|
|
|
|
// processSymbolTable - Insert all of the values in the specified symbol table
|
|
// into the values table...
|
|
//
|
|
void processSymbolTable(const SymbolTable *ST);
|
|
void processSymbolTableConstants(const SymbolTable *ST);
|
|
};
|
|
|
|
#endif
|