#ifndef LLVM_LLVMCONTEXT_H
#define LLVM_LLVMCONTEXT_H
-#include "llvm/Support/DataTypes.h"
-#include <vector>
-#include <string>
+#include "llvm/Support/Compiler.h"
namespace llvm {
-class APFloat;
-class APInt;
-class ArrayType;
-class Constant;
-class ConstantAggregateZero;
-class ConstantArray;
-class ConstantFP;
-class ConstantInt;
-class ConstantPointerNull;
-class ConstantStruct;
-class ConstantVector;
-class FunctionType;
-class IntegerType;
-struct LLVMContextImpl;
-class MDNode;
-class MDString;
-class OpaqueType;
-class PointerType;
+class LLVMContextImpl;
class StringRef;
-class StructType;
-class Type;
-class UndefValue;
-class Use;
-class Value;
-class VectorType;
+class Twine;
+class Instruction;
+class Module;
+class SMDiagnostic;
+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.
-struct LLVMContext {
- LLVMContextImpl* pImpl;
-
+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"
+ MD_prof = 2, // "prof"
+ MD_fpmath = 3, // "fpmath"
+ MD_range = 4, // "range"
+ MD_tbaa_struct = 5 // "tbaa.struct"
+ };
+
+ /// 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;
+
+
+ typedef void (*DiagHandlerTy)(const SMDiagnostic&, void *Context,
+ unsigned LocCookie);
+
+ /// setDiagnosticHandler - This method sets a handler that is invoked
+ /// when problems are detected by the backend. The first argument is a
+ /// function pointer and the second is a context pointer that gets passed
+ /// into the DiagHandler.
+ ///
+ /// LLVMContext doesn't take ownership or interpret either of these
+ /// pointers.
+ void setDiagnosticHandler(DiagHandlerTy DiagHandler, void *DiagContext = 0);
+
+ /// getDiagnosticHandler - Return the diagnostic handler set by
+ /// setDiagnosticHandler.
+ DiagHandlerTy getDiagnosticHandler() const;
+
+ /// getDiagnosticContext - Return the diagnostic context set by
+ /// setDiagnosticHandler.
+ void *getDiagnosticContext() const;
+
+ /// FIXME: Temporary copies of the old names; to be removed as soon as
+ /// clang switches to the new ones.
+ typedef DiagHandlerTy InlineAsmDiagHandlerTy;
+ void setInlineAsmDiagnosticHandler(InlineAsmDiagHandlerTy DiagHandler,
+ void *DiagContext = 0) {
+ setDiagnosticHandler(DiagHandler, DiagContext);
+ }
+ InlineAsmDiagHandlerTy getInlineAsmDiagnosticHandler() const {
+ return getDiagnosticHandler();
+ }
+ void *getInlineAsmDiagnosticContext() const {
+ return getDiagnosticContext();
+ }
+
+ /// 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, const Twine &ErrorStr);
+ void emitError(const Instruction *I, const Twine &ErrorStr);
+ void emitError(const Twine &ErrorStr);
+
+ /// emitWarning - This is similar to emitError but it emits a warning instead
+ /// of an error.
+ void emitWarning(unsigned LocCookie, const Twine &ErrorStr);
+ void emitWarning(const Instruction *I, const Twine &ErrorStr);
+ void emitWarning(const Twine &ErrorStr);
+
+private:
+ LLVMContext(LLVMContext&) LLVM_DELETED_FUNCTION;
+ void operator=(LLVMContext&) LLVM_DELETED_FUNCTION;
+
+ /// 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;
};
-/// FOR BACKWARDS COMPATIBILITY - Returns a global context.
-extern LLVMContext& getGlobalContext();
+/// getGlobalContext - Returns a global context. This is for LLVM clients that
+/// only care about operating on a single thread.
+extern LLVMContext &getGlobalContext();
}