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annotate include/llvm/Support/CodeGen.h @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 803732b1fca8
children
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1 //===-- llvm/Support/CodeGen.h - CodeGen Concepts ---------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file define some types which define code generation concepts. For
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10 // example, relocation model.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #ifndef LLVM_SUPPORT_CODEGEN_H
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15 #define LLVM_SUPPORT_CODEGEN_H
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16
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17 namespace llvm {
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18
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19 // Relocation model types.
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20 namespace Reloc {
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21 // Cannot be named PIC due to collision with -DPIC
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22 enum Model { Static, PIC_, DynamicNoPIC, ROPI, RWPI, ROPI_RWPI };
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23 }
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24
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25 // Code model types.
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26 namespace CodeModel {
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27 // Sync changes with CodeGenCWrappers.h.
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28 enum Model { Tiny, Small, Kernel, Medium, Large };
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29 }
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31 namespace PICLevel {
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32 // This is used to map -fpic/-fPIC.
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33 enum Level { NotPIC=0, SmallPIC=1, BigPIC=2 };
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34 }
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35
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36 namespace PIELevel {
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37 enum Level { Default=0, Small=1, Large=2 };
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38 }
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39
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40 // TLS models.
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41 namespace TLSModel {
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42 enum Model {
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43 GeneralDynamic,
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44 LocalDynamic,
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45 InitialExec,
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46 LocalExec
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47 };
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48 }
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49
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50 // Code generation optimization level.
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51 namespace CodeGenOpt {
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52 enum Level {
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53 None = 0, // -O0
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54 Less = 1, // -O1
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55 Default = 2, // -O2, -Os
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56 Aggressive = 3 // -O3
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57 };
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58 }
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59
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60 // Specify effect of frame pointer elimination optimization.
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61 namespace FramePointer {
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62 enum FP {All, NonLeaf, None};
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63 }
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64
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65 } // end llvm namespace
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66
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67 #endif