diff options
Diffstat (limited to 'lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp')
-rw-r--r-- | lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp b/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp new file mode 100644 index 0000000000..a08c915bc6 --- /dev/null +++ b/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp @@ -0,0 +1,98 @@ +//===-- 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 "llvm/Module.h" +#include "llvm/Target/TargetRegistry.h" +using namespace llvm; + +Target 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 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); +} |