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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
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
//===-- AlphaTargetInfo.cpp - Alpha 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 "Alpha.h"
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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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llvm::Target llvm::TheAlphaTarget;
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static unsigned Alpha_JITMatchQuality() {
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#ifdef __alpha
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return 10;
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#else
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return 0;
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#endif
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}
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static unsigned Alpha_TripleMatchQuality(const std::string &TT) {
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// We strongly match "alpha*".
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if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
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TT[3] == 'h' && TT[4] == 'a')
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return 20;
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return 0;
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}
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static unsigned Alpha_ModuleMatchQuality(const Module &M) {
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// Check for a triple match.
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if (unsigned Q = Alpha_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::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 Alpha_JITMatchQuality()/2;
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}
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extern "C" void LLVMInitializeAlphaTargetInfo() {
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TargetRegistry::RegisterTarget(TheAlphaTarget, "alpha",
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"Alpha [experimental]",
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&Alpha_TripleMatchQuality,
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&Alpha_ModuleMatchQuality,
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&Alpha_JITMatchQuality);
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}
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