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//===--- CodeGenOptions.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the CodeGenOptions interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_CODEGEN_CODEGENOPTIONS_H
#define LLVM_CLANG_CODEGEN_CODEGENOPTIONS_H
#include <string>
#include <vector>
namespace clang {
/// CodeGenOptions - Track various options which control how the code
/// is optimized and passed to the backend.
class CodeGenOptions {
public:
enum InliningMethod {
NoInlining, // Perform no inlining whatsoever.
NormalInlining, // Use the standard function inlining pass.
OnlyAlwaysInlining // Only run the always inlining pass.
};
unsigned DebugInfo : 1; /// Should generate deubg info (-g).
unsigned DisableLLVMOpts : 1; /// Don't run any optimizations, for use in
/// getting .bc files that correspond to the
/// internal state before optimizations are
/// done.
unsigned DisableRedZone : 1; /// Set when -mno-red-zone is enabled.
unsigned MergeAllConstants : 1; /// Merge identical constants.
unsigned NoCommon : 1; /// Set when -fno-common or C++ is enabled.
unsigned NoImplicitFloat : 1; /// Set when -mno-implicit-float is enabled.
unsigned OptimizationLevel : 3; /// The -O[0-4] option specified.
unsigned OptimizeSize : 1; /// If -Os is specified.
unsigned SimplifyLibCalls : 1; /// Should standard library calls be treated
/// specially.
unsigned TimePasses : 1; /// Set when -ftime-report is enabled.
unsigned UnitAtATime : 1; /// Unused. For mirroring GCC optimization
/// selection.
unsigned UnrollLoops : 1; /// Control whether loops are unrolled.
unsigned VerifyModule : 1; /// Control whether the module should be run
/// through the LLVM Verifier.
/// Inlining - The kind of inlining to perform.
InliningMethod Inlining;
public:
CodeGenOptions() {
OptimizationLevel = 0;
OptimizeSize = 0;
DebugInfo = 0;
UnitAtATime = 1;
SimplifyLibCalls = UnrollLoops = 0;
VerifyModule = 1;
TimePasses = 0;
NoCommon = 0;
Inlining = NoInlining;
DisableRedZone = 0;
NoImplicitFloat = 0;
MergeAllConstants = 1;
DisableLLVMOpts = 0;
}
};
} // end namespace clang
#endif
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