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893f22f882
Summary: This makes PIC levels a Module flag attribute, which can be queried by the backend. The flag is named `PIC Level`, and can have a value of: 0 - Backend-default 1 - Small-model (-fpic) 2 - Large-model (-fPIC) These match the `-pic-level' command line argument for clang, and the value of the preprocessor macro `__PIC__'. Test Plan: New flags tests specific for the 'PIC Level' module flag. Tests to be added as part of a future commit for PowerPC, which will use this new API. Reviewers: rafael, echristo Reviewed By: rafael, echristo Subscribers: rafael, llvm-commits Differential Revision: http://reviews.llvm.org/D5882 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221510 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
//===-- llvm/Support/CodeGen.h - CodeGen Concepts ---------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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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#include "llvm-c/TargetMachine.h"
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#include "llvm/Support/ErrorHandling.h"
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namespace llvm {
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// Relocation model types.
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namespace Reloc {
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enum Model { Default, Static, PIC_, DynamicNoPIC };
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}
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// Code model types.
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namespace CodeModel {
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enum Model { Default, JITDefault, Small, Kernel, Medium, Large };
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}
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namespace PICLevel {
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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, // -O0
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Less, // -O1
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Default, // -O2, -Os
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Aggressive // -O3
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};
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}
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// Create wrappers for C Binding types (see CBindingWrapping.h).
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inline CodeModel::Model unwrap(LLVMCodeModel Model) {
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switch (Model) {
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case LLVMCodeModelDefault:
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return CodeModel::Default;
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case LLVMCodeModelJITDefault:
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return CodeModel::JITDefault;
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case LLVMCodeModelSmall:
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return CodeModel::Small;
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case LLVMCodeModelKernel:
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return CodeModel::Kernel;
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case LLVMCodeModelMedium:
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return CodeModel::Medium;
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case LLVMCodeModelLarge:
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return CodeModel::Large;
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}
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return CodeModel::Default;
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}
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inline LLVMCodeModel wrap(CodeModel::Model Model) {
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switch (Model) {
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case CodeModel::Default:
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return LLVMCodeModelDefault;
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case CodeModel::JITDefault:
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return LLVMCodeModelJITDefault;
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case CodeModel::Small:
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return LLVMCodeModelSmall;
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case CodeModel::Kernel:
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return LLVMCodeModelKernel;
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case CodeModel::Medium:
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return LLVMCodeModelMedium;
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case CodeModel::Large:
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return LLVMCodeModelLarge;
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}
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llvm_unreachable("Bad CodeModel!");
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}
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} // end llvm namespace
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#endif
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