mirror of
https://github.com/c64scene-ar/llvm-6502.git
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98a366d547
which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
//===-- IA64TargetMachine.cpp - Define TargetMachine for IA64 -------------===//
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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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//
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// This file implements the IA64 specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#include "IA64TargetAsmInfo.h"
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#include "IA64TargetMachine.h"
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#include "IA64.h"
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/Target/TargetMachineRegistry.h"
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using namespace llvm;
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/// IA64TargetMachineModule - Note that this is used on hosts that cannot link
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/// in a library unless there are references into the library. In particular,
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/// it seems that it is not possible to get things to work on Win32 without
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/// this. Though it is unused, do not remove it.
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extern "C" int IA64TargetMachineModule;
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int IA64TargetMachineModule = 0;
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static RegisterTarget<IA64TargetMachine> X("ia64",
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"IA-64 (Itanium) [experimental]");
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const TargetAsmInfo *IA64TargetMachine::createTargetAsmInfo() const {
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return new IA64TargetAsmInfo(*this);
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}
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unsigned IA64TargetMachine::getModuleMatchQuality(const Module &M) {
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// we match [iI][aA]*64
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bool seenIA64=false;
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std::string TT = M.getTargetTriple();
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if (TT.size() >= 4) {
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if( (TT[0]=='i' || TT[0]=='I') &&
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(TT[1]=='a' || TT[1]=='A') ) {
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for(unsigned int i=2; i<(TT.size()-1); i++)
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if(TT[i]=='6' && TT[i+1]=='4')
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seenIA64=true;
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}
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if (seenIA64)
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return 20; // strong match
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}
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// If the target triple is something non-ia64, we don't match.
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if (!TT.empty()) return 0;
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#if defined(__ia64__) || defined(__IA64__)
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return 5;
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#else
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return 0;
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#endif
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}
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/// IA64TargetMachine ctor - Create an LP64 architecture model
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///
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IA64TargetMachine::IA64TargetMachine(const Module &M, const std::string &FS)
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: DataLayout("e-f80:128:128"),
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FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
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TLInfo(*this) { // FIXME? check this stuff
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}
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//===----------------------------------------------------------------------===//
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// Pass Pipeline Configuration
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//===----------------------------------------------------------------------===//
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bool IA64TargetMachine::addInstSelector(PassManagerBase &PM,
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CodeGenOpt::Level OptLevel){
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PM.add(createIA64DAGToDAGInstructionSelector(*this));
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return false;
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}
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bool IA64TargetMachine::addPreEmitPass(PassManagerBase &PM,
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CodeGenOpt::Level OptLevel) {
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// Make sure everything is bundled happily
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PM.add(createIA64BundlingPass(*this));
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return true;
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}
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bool IA64TargetMachine::addAssemblyEmitter(PassManagerBase &PM,
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CodeGenOpt::Level OptLevel,
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bool Verbose,
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raw_ostream &Out) {
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PM.add(createIA64CodePrinterPass(Out, *this, OptLevel, Verbose));
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return false;
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}
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