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