mirror of
https://github.com/c64scene-ar/llvm-6502.git
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4cb1e13769
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76344 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
//===-- X86TargetInfo.cpp - X86 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 llvm::TheX86_32Target;
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static unsigned X86_32_JITMatchQuality() {
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#if defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
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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 X86_32_TripleMatchQuality(const std::string &TT) {
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// We strongly match "i[3-9]86-*".
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if (TT.size() >= 5 && TT[0] == 'i' && TT[2] == '8' && TT[3] == '6' &&
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TT[4] == '-' && TT[1] - '3' < 6)
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return 20;
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return 0;
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}
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static unsigned X86_32_ModuleMatchQuality(const Module &M) {
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// Check for a triple match.
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if (unsigned Q = X86_32_TripleMatchQuality(M.getTargetTriple()))
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return Q;
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// If the target triple is something non-X86, 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 X86_32_JITMatchQuality()/2;
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}
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Target llvm::TheX86_64Target;
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static unsigned X86_64_JITMatchQuality() {
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#if defined(__x86_64__) || defined(_M_AMD64)
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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 X86_64_TripleMatchQuality(const std::string &TT) {
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// We strongly match "x86_64-*".
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if (TT.size() >= 7 && TT[0] == 'x' && TT[1] == '8' && TT[2] == '6' &&
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TT[3] == '_' && TT[4] == '6' && TT[5] == '4' && TT[6] == '-')
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return 20;
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return 0;
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}
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static unsigned X86_64_ModuleMatchQuality(const Module &M) {
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// Check for a triple match.
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if (unsigned Q = X86_64_TripleMatchQuality(M.getTargetTriple()))
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return Q;
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// If the target triple is something non-X86-64, 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::Pointer64)
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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 X86_64_JITMatchQuality()/2;
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}
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extern "C" void LLVMInitializeX86TargetInfo() {
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TargetRegistry::RegisterTarget(TheX86_32Target, "x86",
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"32-bit X86: Pentium-Pro and above",
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&X86_32_TripleMatchQuality,
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&X86_32_ModuleMatchQuality,
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&X86_32_JITMatchQuality);
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TargetRegistry::RegisterTarget(TheX86_64Target, "x86-64",
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"64-bit X86: EM64T and AMD64",
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&X86_64_TripleMatchQuality,
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&X86_64_ModuleMatchQuality,
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&X86_64_JITMatchQuality);
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}
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