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https://github.com/c64scene-ar/llvm-6502.git
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4a971705bc
It was just a less powerful and more confusing version of MCCFIInstruction. A side effect is that, since MCCFIInstruction uses dwarf register numbers, calls to getDwarfRegNum are pushed out, which should allow further simplifications. I left the MachineModuleInfo::addFrameMove interface unchanged since this patch was already fairly big. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
//===-- SystemZTargetMachine.cpp - Define TargetMachine for SystemZ -------===//
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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 "SystemZTargetMachine.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/Support/TargetRegistry.h"
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using namespace llvm;
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extern "C" void LLVMInitializeSystemZTarget() {
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// Register the target.
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RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget);
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}
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SystemZTargetMachine::SystemZTargetMachine(const Target &T, StringRef TT,
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StringRef CPU, StringRef FS,
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const TargetOptions &Options,
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Reloc::Model RM,
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CodeModel::Model CM,
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CodeGenOpt::Level OL)
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: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
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Subtarget(TT, CPU, FS),
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// Make sure that global data has at least 16 bits of alignment by default,
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// so that we can refer to it using LARL. We don't have any special
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// requirements for stack variables though.
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DL("E-p:64:64:64-i1:8:16-i8:8:16-i16:16-i32:32-i64:64"
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"-f32:32-f64:64-f128:64-a0:8:16-n32:64"),
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InstrInfo(*this), TLInfo(*this), TSInfo(*this),
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FrameLowering(*this, Subtarget) {
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initAsmInfo();
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}
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namespace {
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/// SystemZ Code Generator Pass Configuration Options.
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class SystemZPassConfig : public TargetPassConfig {
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public:
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SystemZPassConfig(SystemZTargetMachine *TM, PassManagerBase &PM)
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: TargetPassConfig(TM, PM) {}
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SystemZTargetMachine &getSystemZTargetMachine() const {
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return getTM<SystemZTargetMachine>();
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}
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virtual bool addInstSelector();
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};
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} // end anonymous namespace
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bool SystemZPassConfig::addInstSelector() {
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addPass(createSystemZISelDag(getSystemZTargetMachine(), getOptLevel()));
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return false;
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}
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TargetPassConfig *SystemZTargetMachine::createPassConfig(PassManagerBase &PM) {
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return new SystemZPassConfig(this, PM);
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}
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