forked from OSchip/llvm-project
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
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//===-- ARMTargetInfo.cpp - ARM Target Implementation ---------------------===//
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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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#include "llvm/Module.h"
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#include "llvm/Target/TargetRegistry.h"
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using namespace llvm;
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Target TheARMTarget;
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static unsigned ARM_JITMatchQuality() {
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#if defined(__arm__)
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return 10;
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#endif
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return 0;
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}
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static unsigned ARM_TripleMatchQuality(const std::string &TT) {
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// Match arm-foo-bar, as well as things like armv5blah-*
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if (TT.size() >= 4 &&
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(TT.substr(0, 4) == "arm-" || TT.substr(0, 4) == "armv"))
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return 20;
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return 0;
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}
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static unsigned ARM_ModuleMatchQuality(const Module &M) {
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// Check for a triple match.
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if (unsigned Q = ARM_TripleMatchQuality(M.getTargetTriple()))
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return Q;
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// Otherwise if the target triple is non-empty, we don't match.
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if (!M.getTargetTriple().empty()) return 0;
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if (M.getEndianness() == Module::LittleEndian &&
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M.getPointerSize() == Module::Pointer32)
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return 10; // Weak match
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else if (M.getEndianness() != Module::AnyEndianness ||
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M.getPointerSize() != Module::AnyPointerSize)
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return 0; // Match for some other target
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return ARM_JITMatchQuality()/2;
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}
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Target TheThumbTarget;
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static unsigned Thumb_JITMatchQuality() {
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#if defined(__thumb__)
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return 10;
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#endif
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return 0;
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}
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static unsigned Thumb_TripleMatchQuality(const std::string &TT) {
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// Match thumb-foo-bar, as well as things like thumbv5blah-*
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if (TT.size() >= 6 &&
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(TT.substr(0, 6) == "thumb-" || TT.substr(0, 6) == "thumbv"))
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return 20;
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return 0;
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}
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static unsigned Thumb_ModuleMatchQuality(const Module &M) {
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// Check for a triple match.
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if (unsigned Q = Thumb_TripleMatchQuality(M.getTargetTriple()))
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return Q;
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// Otherwise if the target triple is non-empty, we don't match.
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if (!M.getTargetTriple().empty()) return 0;
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if (M.getEndianness() == Module::LittleEndian &&
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M.getPointerSize() == Module::Pointer32)
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return 10; // Weak match
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else if (M.getEndianness() != Module::AnyEndianness ||
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M.getPointerSize() != Module::AnyPointerSize)
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return 0; // Match for some other target
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return Thumb_JITMatchQuality()/2;
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}
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extern "C" void LLVMInitializeARMTargetInfo() {
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TargetRegistry::RegisterTarget(TheARMTarget, "arm",
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"ARM",
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&ARM_TripleMatchQuality,
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&ARM_ModuleMatchQuality,
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&ARM_JITMatchQuality);
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TargetRegistry::RegisterTarget(TheThumbTarget, "thumb",
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"Thumb",
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&Thumb_TripleMatchQuality,
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&Thumb_ModuleMatchQuality,
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&Thumb_JITMatchQuality);
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}
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