forked from OSchip/llvm-project
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
//===-- MBlazeTargetMachine.cpp - Define TargetMachine for MBlaze ---------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Implements the info about MBlaze target spec.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "MBlaze.h"
|
|
#include "MBlazeMCAsmInfo.h"
|
|
#include "MBlazeTargetMachine.h"
|
|
#include "llvm/PassManager.h"
|
|
#include "llvm/Target/TargetRegistry.h"
|
|
using namespace llvm;
|
|
|
|
extern "C" void LLVMInitializeMBlazeTarget() {
|
|
// Register the target.
|
|
RegisterTargetMachine<MBlazeTargetMachine> X(TheMBlazeTarget);
|
|
RegisterAsmInfo<MBlazeMCAsmInfo> A(TheMBlazeTarget);
|
|
}
|
|
|
|
// DataLayout --> Big-endian, 32-bit pointer/ABI/alignment
|
|
// The stack is always 8 byte aligned
|
|
// On function prologue, the stack is created by decrementing
|
|
// its pointer. Once decremented, all references are done with positive
|
|
// offset from the stack/frame pointer, using StackGrowsUp enables
|
|
// an easier handling.
|
|
MBlazeTargetMachine::
|
|
MBlazeTargetMachine(const Target &T, const std::string &TT,
|
|
const std::string &FS):
|
|
LLVMTargetMachine(T, TT),
|
|
Subtarget(TT, FS),
|
|
DataLayout("E-p:32:32-i8:8:8-i16:16:16-i64:32:32-"
|
|
"f64:32:32-v64:32:32-v128:32:32-n32"),
|
|
InstrInfo(*this),
|
|
FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0),
|
|
TLInfo(*this), TSInfo(*this) {
|
|
if (getRelocationModel() == Reloc::Default) {
|
|
setRelocationModel(Reloc::Static);
|
|
}
|
|
|
|
if (getCodeModel() == CodeModel::Default)
|
|
setCodeModel(CodeModel::Small);
|
|
}
|
|
|
|
// Install an instruction selector pass using
|
|
// the ISelDag to gen MBlaze code.
|
|
bool MBlazeTargetMachine::
|
|
addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel) {
|
|
PM.add(createMBlazeISelDag(*this));
|
|
return false;
|
|
}
|
|
|
|
// Implemented by targets that want to run passes immediately before
|
|
// machine code is emitted. return true if -print-machineinstrs should
|
|
// print out the code after the passes.
|
|
bool MBlazeTargetMachine::
|
|
addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel) {
|
|
PM.add(createMBlazeDelaySlotFillerPass(*this));
|
|
return true;
|
|
}
|