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https://github.com/c64scene-ar/llvm-6502.git
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b972f95b15
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2213 91177308-0d34-0410-b5e6-96231b3b80d8
122 lines
4.5 KiB
C++
122 lines
4.5 KiB
C++
//===-- ExecutionAnnotations.h ---------------------------------*- C++ -*--===//
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//
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// This header file defines annotations used by the execution engine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLI_EXECUTION_ANNOTATIONS_H
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#define LLI_EXECUTION_ANNOTATIONS_H
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//===----------------------------------------------------------------------===//
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// Support for MethodInfo annotations
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//===----------------------------------------------------------------------===//
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// This annotation (attached only to Function objects) is used to cache useful
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// information about the function, including the number of types present in the
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// function, and the number of values for each type.
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//
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// This annotation object is created on demand, and attaches other annotation
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// objects to the instructions in the function when it's created.
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//
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static AnnotationID MethodInfoAID(
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AnnotationManager::getID("Interpreter::FunctionInfo"));
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struct MethodInfo : public Annotation {
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MethodInfo(Function *F);
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std::vector<unsigned> NumPlaneElements;
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// Create - Factory function to allow MethodInfo annotations to be
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// created on demand.
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//
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static Annotation *Create(AnnotationID AID, const Annotable *O, void *) {
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assert(AID == MethodInfoAID);
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return new MethodInfo(cast<Function>((Value*)O)); // Simply invoke the ctor
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}
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private:
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unsigned getValueSlot(const Value *V);
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};
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//===----------------------------------------------------------------------===//
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// Support for the SlotNumber annotation
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//===----------------------------------------------------------------------===//
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// This annotation (attached only to Argument & Instruction objects) is used to
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// hold the the slot number for the value in its type plane.
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//
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// Entities have this annotation attached to them when the containing
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// function has it's MethodInfo created (by the MethodInfo ctor).
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//
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static AnnotationID SlotNumberAID(
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AnnotationManager::getID("Interpreter::SlotNumber"));
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struct SlotNumber : public Annotation {
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unsigned SlotNum; // Ranges from 0->
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SlotNumber(unsigned sn) : Annotation(SlotNumberAID),
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SlotNum(sn) {}
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};
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//===----------------------------------------------------------------------===//
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// Support for the InstNumber annotation
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//===----------------------------------------------------------------------===//
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// This annotation (attached only to Instruction objects) is used to hold the
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// instruction number of the instruction, and the slot number for the value in
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// its type plane. InstNumber's are used for user interaction, and for
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// calculating which value slot to store the result of the instruction in.
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//
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// Instructions have this annotation attached to them when the containing
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// function has it's MethodInfo created (by the MethodInfo ctor).
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//
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struct InstNumber : public SlotNumber {
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unsigned InstNum; // Ranges from 1->
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InstNumber(unsigned in, unsigned sn) : SlotNumber(sn), InstNum(in) {}
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};
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//===----------------------------------------------------------------------===//
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// Support for the Breakpoint annotation
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//===----------------------------------------------------------------------===//
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static AnnotationID BreakpointAID(
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AnnotationManager::getID("Interpreter::Breakpoint"));
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// Just use an Annotation directly, Breakpoint is currently just a marker
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//===----------------------------------------------------------------------===//
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// Support for the GlobalAddress annotation
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//===----------------------------------------------------------------------===//
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// This annotation (attached only to GlobalValue objects) is used to hold the
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// address of the chunk of memory that represents a global value. For
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// Functions, this pointer is the Function object pointer that represents it.
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// For global variables, this is the dynamically allocated (and potentially
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// initialized) chunk of memory for the global. This annotation is created on
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// demand.
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//
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static AnnotationID GlobalAddressAID(
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AnnotationManager::getID("Interpreter::GlobalAddress"));
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struct GlobalAddress : public Annotation {
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void *Ptr; // The pointer itself
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bool Delete; // Should I delete them memory on destruction?
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GlobalAddress(void *ptr, bool d) : Annotation(GlobalAddressAID), Ptr(ptr),
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Delete(d) {}
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~GlobalAddress() { if (Delete) free(Ptr); }
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// Create - Factory function to allow GlobalAddress annotations to be
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// created on demand.
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//
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static Annotation *Create(AnnotationID AID, const Annotable *O, void *);
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};
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#endif
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