mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
bc641b9d8b
Make the CBE and V9 backends create their own, since they're the only ones that use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26974 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
//===-- TargetMachine.cpp - General Target Information ---------------------==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file describes the general parts of a Target machine.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Target/TargetMachine.h"
|
|
#include "llvm/Target/TargetOptions.h"
|
|
#include "llvm/Type.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
using namespace llvm;
|
|
|
|
//---------------------------------------------------------------------------
|
|
// Command-line options that tend to be useful on more than one back-end.
|
|
//
|
|
|
|
namespace llvm {
|
|
bool PrintMachineCode;
|
|
bool NoFramePointerElim;
|
|
bool NoExcessFPPrecision;
|
|
bool UnsafeFPMath;
|
|
Reloc::Model RelocationModel;
|
|
};
|
|
namespace {
|
|
cl::opt<bool, true> PrintCode("print-machineinstrs",
|
|
cl::desc("Print generated machine code"),
|
|
cl::location(PrintMachineCode), cl::init(false));
|
|
|
|
cl::opt<bool, true>
|
|
DisableFPElim("disable-fp-elim",
|
|
cl::desc("Disable frame pointer elimination optimization"),
|
|
cl::location(NoFramePointerElim),
|
|
cl::init(false));
|
|
cl::opt<bool, true>
|
|
DisableExcessPrecision("disable-excess-fp-precision",
|
|
cl::desc("Disable optimizations that may increase FP precision"),
|
|
cl::location(NoExcessFPPrecision),
|
|
cl::init(false));
|
|
cl::opt<bool, true>
|
|
EnableUnsafeFPMath("enable-unsafe-fp-math",
|
|
cl::desc("Enable optimizations that may decrease FP precision"),
|
|
cl::location(UnsafeFPMath),
|
|
cl::init(false));
|
|
cl::opt<llvm::Reloc::Model, true>
|
|
DefRelocationModel(
|
|
"relocation-model",
|
|
cl::desc("Choose relocation model"),
|
|
cl::location(RelocationModel),
|
|
cl::init(Reloc::Default),
|
|
cl::values(
|
|
clEnumValN(Reloc::Default, "default",
|
|
"Target default relocation model"),
|
|
clEnumValN(Reloc::Static, "static",
|
|
"Non-relocatable code"),
|
|
clEnumValN(Reloc::PIC, "pic",
|
|
"Fully relocatable, position independent code"),
|
|
clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
|
|
"Relocatable external references, non-relocatable code"),
|
|
clEnumValEnd));
|
|
};
|
|
|
|
//---------------------------------------------------------------------------
|
|
// TargetMachine Class
|
|
//
|
|
TargetMachine::TargetMachine(const std::string &name, bool LittleEndian,
|
|
unsigned char PtrSize, unsigned char PtrAl,
|
|
unsigned char DoubleAl, unsigned char FloatAl,
|
|
unsigned char LongAl, unsigned char IntAl,
|
|
unsigned char ShortAl, unsigned char ByteAl,
|
|
unsigned char BoolAl)
|
|
: Name(name), DataLayout(name, LittleEndian,
|
|
PtrSize, PtrAl, DoubleAl, FloatAl, LongAl,
|
|
IntAl, ShortAl, ByteAl, BoolAl) {
|
|
}
|
|
|
|
TargetMachine::TargetMachine(const std::string &name, const TargetData &TD)
|
|
: Name(name), DataLayout(TD) {
|
|
}
|
|
|
|
TargetMachine::TargetMachine(const std::string &name, const Module &M)
|
|
: Name(name), DataLayout(name, &M) {
|
|
}
|
|
|
|
TargetMachine::~TargetMachine() {
|
|
}
|
|
|
|
/// getRelocationModel - Returns the code generation relocation model. The
|
|
/// choices are static, PIC, and dynamic-no-pic, and target default.
|
|
Reloc::Model TargetMachine::getRelocationModel() {
|
|
return RelocationModel;
|
|
}
|
|
|
|
/// setRelocationModel - Sets the code generation relocation model.
|
|
void TargetMachine::setRelocationModel(Reloc::Model Model) {
|
|
RelocationModel = Model;
|
|
}
|