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| //===-- llvm/Support/CodeGen.h - CodeGen Concepts ---------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file define some types which define code generation concepts. For
// example, relocation model.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_CODEGEN_H
#define LLVM_SUPPORT_CODEGEN_H
namespace llvm {
// Relocation model types.
namespace Reloc {
// Cannot be named PIC due to collision with -DPIC
enum Model { Static, PIC_, DynamicNoPIC, ROPI, RWPI, ROPI_RWPI };
}
// Code model types.
namespace CodeModel {
// Sync changes with CodeGenCWrappers.h.
enum Model { Tiny, Small, Kernel, Medium, Large };
}
namespace PICLevel {
// This is used to map -fpic/-fPIC.
enum Level { NotPIC=0, SmallPIC=1, BigPIC=2 };
}
namespace PIELevel {
enum Level { Default=0, Small=1, Large=2 };
}
// TLS models.
namespace TLSModel {
enum Model {
GeneralDynamic,
LocalDynamic,
InitialExec,
LocalExec
};
}
// Code generation optimization level.
namespace CodeGenOpt {
enum Level {
None = 0, // -O0
Less = 1, // -O1
Default = 2, // -O2, -Os
Aggressive = 3 // -O3
};
}
// Specify effect of frame pointer elimination optimization.
namespace FramePointer {
enum FP {All, NonLeaf, None};
}
} // end llvm namespace
#endif
|