1 //===-- SPUTargetMachine.cpp - Define TargetMachine for Cell SPU ----------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Top-level implementation for the Cell SPU target.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "SPU.h"
15 #include "SPUTargetMachine.h"
16 #include "llvm/PassManager.h"
17 #include "llvm/CodeGen/RegAllocRegistry.h"
18 #include "llvm/CodeGen/SchedulerRegistry.h"
19 #include "llvm/Target/TargetRegistry.h"
20
21 using namespace llvm;
22
LLVMInitializeCellSPUTarget()23 extern "C" void LLVMInitializeCellSPUTarget() {
24 // Register the target.
25 RegisterTargetMachine<SPUTargetMachine> X(TheCellSPUTarget);
26 }
27
28 const std::pair<unsigned, int> *
getCalleeSaveSpillSlots(unsigned & NumEntries) const29 SPUFrameLowering::getCalleeSaveSpillSlots(unsigned &NumEntries) const {
30 NumEntries = 1;
31 return &LR[0];
32 }
33
SPUTargetMachine(const Target & T,StringRef TT,StringRef CPU,StringRef FS,Reloc::Model RM)34 SPUTargetMachine::SPUTargetMachine(const Target &T, StringRef TT,
35 StringRef CPU,StringRef FS, Reloc::Model RM)
36 : LLVMTargetMachine(T, TT, CPU, FS, RM),
37 Subtarget(TT, CPU, FS),
38 DataLayout(Subtarget.getTargetDataString()),
39 InstrInfo(*this),
40 FrameLowering(Subtarget),
41 TLInfo(*this),
42 TSInfo(*this),
43 InstrItins(Subtarget.getInstrItineraryData()) {
44 }
45
46 //===----------------------------------------------------------------------===//
47 // Pass Pipeline Configuration
48 //===----------------------------------------------------------------------===//
49
addInstSelector(PassManagerBase & PM,CodeGenOpt::Level OptLevel)50 bool SPUTargetMachine::addInstSelector(PassManagerBase &PM,
51 CodeGenOpt::Level OptLevel) {
52 // Install an instruction selector.
53 PM.add(createSPUISelDag(*this));
54 return false;
55 }
56
57 // passes to run just before printing the assembly
58 bool SPUTargetMachine::
addPreEmitPass(PassManagerBase & PM,CodeGenOpt::Level OptLevel)59 addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel)
60 {
61 //align instructions with nops/lnops for dual issue
62 PM.add(createSPUNopFillerPass(*this));
63 return true;
64 }
65