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https://github.com/c64scene-ar/llvm-6502.git
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be8cc2a3de
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===-- PIC16TargetMachine.cpp - Define TargetMachine for PIC16 -----------===//
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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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// Top-level implementation for the PIC16 target.
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//
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//===----------------------------------------------------------------------===//
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#include "PIC16.h"
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#include "PIC16TargetAsmInfo.h"
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#include "PIC16TargetMachine.h"
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/Target/TargetAsmInfo.h"
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#include "llvm/Target/TargetMachineRegistry.h"
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using namespace llvm;
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/// PIC16TargetMachineModule - Note that this is used on hosts that
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/// cannot link in a library unless there are references into the
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/// library. In particular, it seems that it is not possible to get
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/// things to work on Win32 without this. Though it is unused, do not
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/// remove it.
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extern "C" int PIC16TargetMachineModule;
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int PIC16TargetMachineModule = 0;
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// Register the targets
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static RegisterTarget<PIC16TargetMachine>
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X("pic16", "PIC16 14-bit [experimental].");
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static RegisterTarget<CooperTargetMachine>
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Y("cooper", "PIC16 Cooper [experimental].");
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// PIC16TargetMachine - Traditional PIC16 Machine.
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PIC16TargetMachine::PIC16TargetMachine(const Module &M, const std::string &FS,
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bool Cooper)
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: Subtarget(M, FS, Cooper),
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DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
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InstrInfo(*this), TLInfo(*this),
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FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0) { }
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// CooperTargetMachine - Uses the same PIC16TargetMachine, but makes IsCooper
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// as true.
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CooperTargetMachine::CooperTargetMachine(const Module &M, const std::string &FS)
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: PIC16TargetMachine(M, FS, true) {}
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const TargetAsmInfo *PIC16TargetMachine::createTargetAsmInfo() const {
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return new PIC16TargetAsmInfo(*this);
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}
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bool PIC16TargetMachine::addInstSelector(PassManagerBase &PM,
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unsigned OptLevel) {
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// Install an instruction selector.
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PM.add(createPIC16ISelDag(*this));
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return false;
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}
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bool PIC16TargetMachine::
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addAssemblyEmitter(PassManagerBase &PM, unsigned OptLevel, bool Verbose,
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raw_ostream &Out) {
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// Output assembly language.
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PM.add(createPIC16CodePrinterPass(Out, *this, OptLevel, Verbose));
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return false;
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}
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