mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-23 01:30:19 +00:00
b2143b6247
isn't a good level of abstraction for memdep. Instead, generalize AliasAnalysis::alias and related interfaces with a new Location class for describing a memory location. For now, this is the same Pointer and Size as before, plus an additional field for a TBAA tag. Also, introduce a fixed MD_tbaa metadata tag kind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113858 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
//===-- llvm/LLVMContext.h - Class for managing "global" state --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares LLVMContext, a container of "global" state in LLVM, such
|
|
// as the global type and constant uniquing tables.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LLVMCONTEXT_H
|
|
#define LLVM_LLVMCONTEXT_H
|
|
|
|
namespace llvm {
|
|
|
|
class LLVMContextImpl;
|
|
class StringRef;
|
|
class Instruction;
|
|
class Module;
|
|
template <typename T> class SmallVectorImpl;
|
|
|
|
/// This is an important class for using LLVM in a threaded context. It
|
|
/// (opaquely) owns and manages the core "global" data of LLVM's core
|
|
/// infrastructure, including the type and constant uniquing tables.
|
|
/// LLVMContext itself provides no locking guarantees, so you should be careful
|
|
/// to have one context per thread.
|
|
class LLVMContext {
|
|
public:
|
|
LLVMContextImpl *const pImpl;
|
|
LLVMContext();
|
|
~LLVMContext();
|
|
|
|
// Pinned metadata names, which always have the same value. This is a
|
|
// compile-time performance optimization, not a correctness optimization.
|
|
enum {
|
|
MD_dbg = 0, // "dbg"
|
|
MD_tbaa = 1 // "tbaa"
|
|
};
|
|
|
|
/// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
|
|
/// This ID is uniqued across modules in the current LLVMContext.
|
|
unsigned getMDKindID(StringRef Name) const;
|
|
|
|
/// getMDKindNames - Populate client supplied SmallVector with the name for
|
|
/// custom metadata IDs registered in this LLVMContext.
|
|
void getMDKindNames(SmallVectorImpl<StringRef> &Result) const;
|
|
|
|
/// setInlineAsmDiagnosticHandler - This method sets a handler that is invoked
|
|
/// when problems with inline asm are detected by the backend. The first
|
|
/// argument is a function pointer (of type SourceMgr::DiagHandlerTy) and the
|
|
/// second is a context pointer that gets passed into the DiagHandler.
|
|
///
|
|
/// LLVMContext doesn't take ownership or interpreter either of these
|
|
/// pointers.
|
|
void setInlineAsmDiagnosticHandler(void *DiagHandler, void *DiagContext = 0);
|
|
|
|
/// getInlineAsmDiagnosticHandler - Return the diagnostic handler set by
|
|
/// setInlineAsmDiagnosticHandler.
|
|
void *getInlineAsmDiagnosticHandler() const;
|
|
|
|
/// getInlineAsmDiagnosticContext - Return the diagnostic context set by
|
|
/// setInlineAsmDiagnosticHandler.
|
|
void *getInlineAsmDiagnosticContext() const;
|
|
|
|
|
|
/// emitError - Emit an error message to the currently installed error handler
|
|
/// with optional location information. This function returns, so code should
|
|
/// be prepared to drop the erroneous construct on the floor and "not crash".
|
|
/// The generated code need not be correct. The error message will be
|
|
/// implicitly prefixed with "error: " and should not end with a ".".
|
|
void emitError(unsigned LocCookie, StringRef ErrorStr);
|
|
void emitError(const Instruction *I, StringRef ErrorStr);
|
|
void emitError(StringRef ErrorStr);
|
|
|
|
private:
|
|
// DO NOT IMPLEMENT
|
|
LLVMContext(LLVMContext&);
|
|
void operator=(LLVMContext&);
|
|
|
|
/// addModule - Register a module as being instantiated in this context. If
|
|
/// the context is deleted, the module will be deleted as well.
|
|
void addModule(Module*);
|
|
|
|
/// removeModule - Unregister a module from this context.
|
|
void removeModule(Module*);
|
|
|
|
// Module needs access to the add/removeModule methods.
|
|
friend class Module;
|
|
};
|
|
|
|
/// getGlobalContext - Returns a global context. This is for LLVM clients that
|
|
/// only care about operating on a single thread.
|
|
extern LLVMContext &getGlobalContext();
|
|
|
|
}
|
|
|
|
#endif
|