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//===--- BackendUtil.h - LLVM Backend Utilities -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_CODEGEN_BACKEND_UTIL_H
#define LLVM_CLANG_CODEGEN_BACKEND_UTIL_H
namespace llvm {
class Module;
class raw_ostream;
}
namespace clang {
class Diagnostic;
class CodeGenOptions;
class TargetOptions;
class Decl;
enum BackendAction {
Backend_EmitAssembly, ///< Emit native assembly files
Backend_EmitBC, ///< Emit LLVM bitcode files
Backend_EmitLL, ///< Emit human-readable LLVM assembly
Backend_EmitNothing, ///< Don't emit anything (benchmarking mode)
Backend_EmitMCNull, ///< Run CodeGen, but don't emit anything
Backend_EmitObj ///< Emit native object files
};
void EmitBackendOutput(Diagnostic &Diags, const CodeGenOptions &CGOpts,
const TargetOptions &TOpts, llvm::Module *M,
BackendAction Action, llvm::raw_ostream *OS);
/// \brief Determines if the decl can be CodeGen'ed or deserialized from PCH
/// lazily, only when used; this is only relevant for function or file scoped
/// var definitions.
///
/// \returns true if the function/var must be CodeGen'ed/deserialized even if
/// it is not used.
bool DeclIsRequiredFunctionOrFileScopedVar(const Decl *D);
}
#endif
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