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//===-- ARMTargetInfo.cpp - ARM Target Implementation ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ARM.h"
#include "llvm/Module.h"
#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
Target llvm::TheARMTarget;
static unsigned ARM_JITMatchQuality() {
#if defined(__arm__)
return 10;
#endif
return 0;
}
static unsigned ARM_TripleMatchQuality(const std::string &TT) {
// Match arm-foo-bar, as well as things like armv5blah-*
if (TT.size() >= 4 &&
(TT.substr(0, 4) == "arm-" || TT.substr(0, 4) == "armv"))
return 20;
return 0;
}
static unsigned ARM_ModuleMatchQuality(const Module &M) {
// Check for a triple match.
if (unsigned Q = ARM_TripleMatchQuality(M.getTargetTriple()))
return Q;
// Otherwise if the target triple is non-empty, we don't match.
if (!M.getTargetTriple().empty()) return 0;
if (M.getEndianness() == Module::LittleEndian &&
M.getPointerSize() == Module::Pointer32)
return 10; // Weak match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return ARM_JITMatchQuality()/2;
}
Target llvm::TheThumbTarget;
static unsigned Thumb_JITMatchQuality() {
#if defined(__thumb__)
return 10;
#endif
return 0;
}
static unsigned Thumb_TripleMatchQuality(const std::string &TT) {
// Match thumb-foo-bar, as well as things like thumbv5blah-*
if (TT.size() >= 6 &&
(TT.substr(0, 6) == "thumb-" || TT.substr(0, 6) == "thumbv"))
return 20;
return 0;
}
static unsigned Thumb_ModuleMatchQuality(const Module &M) {
// Check for a triple match.
if (unsigned Q = Thumb_TripleMatchQuality(M.getTargetTriple()))
return Q;
// Otherwise if the target triple is non-empty, we don't match.
if (!M.getTargetTriple().empty()) return 0;
if (M.getEndianness() == Module::LittleEndian &&
M.getPointerSize() == Module::Pointer32)
return 10; // Weak match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return Thumb_JITMatchQuality()/2;
}
extern "C" void LLVMInitializeARMTargetInfo() {
TargetRegistry::RegisterTarget(TheARMTarget, "arm",
"ARM",
&ARM_TripleMatchQuality,
&ARM_ModuleMatchQuality,
&ARM_JITMatchQuality);
TargetRegistry::RegisterTarget(TheThumbTarget, "thumb",
"Thumb",
&Thumb_TripleMatchQuality,
&Thumb_ModuleMatchQuality,
&Thumb_JITMatchQuality);
}
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