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//===-- ExecutionAnnotations.h ---------------------------------*- C++ -*--===//
//
// This header file defines annotations used by the execution engine.
//
//===----------------------------------------------------------------------===//
#ifndef LLI_EXECUTION_ANNOTATIONS_H
#define LLI_EXECUTION_ANNOTATIONS_H
//===----------------------------------------------------------------------===//
// Support for MethodInfo annotations
//===----------------------------------------------------------------------===//
// This annotation (attached only to Method objects) is used to cache useful
// information about the method, including the number of types present in the
// method, and the number of values for each type.
//
// This annotation object is created on demand, and attaches other annotation
// objects to the instructions in the method when it's created.
//
static AnnotationID MethodInfoAID(
AnnotationManager::getID("Interpreter::MethodInfo"));
struct MethodInfo : public Annotation {
MethodInfo(Method *M);
vector<unsigned> NumPlaneElements;
// Create - Factory function to allow MethodInfo annotations to be
// created on demand.
//
static Annotation *Create(AnnotationID AID, const Annotable *O, void *) {
assert(AID == MethodInfoAID);
return new MethodInfo(cast<Method>((Value*)O)); // Simply invoke the ctor
}
private:
unsigned getValueSlot(const Value *V);
};
//===----------------------------------------------------------------------===//
// Support for the SlotNumber annotation
//===----------------------------------------------------------------------===//
// This annotation (attached only to MethodArgument & Instruction objects) is
// used to hold the the slot number for the value in its type plane.
//
// Entities have this annotation attached to them when the containing
// method has it's MethodInfo created (by the MethodInfo ctor).
//
static AnnotationID SlotNumberAID(
AnnotationManager::getID("Interpreter::SlotNumber"));
struct SlotNumber : public Annotation {
unsigned SlotNum; // Ranges from 0->
SlotNumber(unsigned sn) : Annotation(SlotNumberAID),
SlotNum(sn) {}
};
//===----------------------------------------------------------------------===//
// Support for the InstNumber annotation
//===----------------------------------------------------------------------===//
// This annotation (attached only to Instruction objects) is used to hold the
// instruction number of the instruction, and the slot number for the value in
// its type plane. InstNumber's are used for user interaction, and for
// calculating which value slot to store the result of the instruction in.
//
// Instructions have this annotation attached to them when the containing method
// has it's MethodInfo created (by the MethodInfo ctor).
//
struct InstNumber : public SlotNumber {
unsigned InstNum; // Ranges from 1->
InstNumber(unsigned in, unsigned sn) : SlotNumber(sn), InstNum(in) {}
};
//===----------------------------------------------------------------------===//
// Support for the Breakpoint annotation
//===----------------------------------------------------------------------===//
static AnnotationID BreakpointAID(
AnnotationManager::getID("Interpreter::Breakpoint"));
// Just use an Annotation directly, Breakpoint is currently just a marker
//===----------------------------------------------------------------------===//
// Support for the GlobalAddress annotation
//===----------------------------------------------------------------------===//
// This annotation (attached only to GlobalValue objects) is used to hold the
// address of the chunk of memory that represents a global value. For Method's,
// this pointer is the Method object pointer that represents it. For global
// variables, this is the dynamically allocated (and potentially initialized)
// chunk of memory for the global. This annotation is created on demand.
//
static AnnotationID GlobalAddressAID(
AnnotationManager::getID("Interpreter::GlobalAddress"));
struct GlobalAddress : public Annotation {
void *Ptr; // The pointer itself
bool Delete; // Should I delete them memory on destruction?
GlobalAddress(void *ptr, bool d) : Annotation(GlobalAddressAID), Ptr(ptr),
Delete(d) {}
~GlobalAddress() { if (Delete) free(Ptr); }
// Create - Factory function to allow GlobalAddress annotations to be
// created on demand.
//
static Annotation *Create(AnnotationID AID, const Annotable *O, void *);
};
#endif
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