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Code Issues Projects Releases Wiki Activity

Move to ISelLowering.

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llvm-svn: 140754
This commit is contained in:
Bill Wendling 2011-09-29 01:13:55 +00:00
parent 4966d44b44
commit cc7e50a465
3 changed files with 0 additions and 131 deletions
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1
lib/Target/ARM/ARM.h
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@ -41,7 +41,6 @@ FunctionPass *createARMLoadStoreOptimizationPass(bool PreAlloc = false);
FunctionPass *createARMExpandPseudoPass();
FunctionPass *createARMGlobalMergePass(const TargetLowering* tli);
FunctionPass *createARMConstantIslandPass();
FunctionPass *createARMSjLjLoweringPass();
FunctionPass *createNEONMoveFixPass();
FunctionPass *createMLxExpansionPass();
FunctionPass *createThumb2ITBlockPass();

128
lib/Target/ARM/ARMSjLjLoweringPass.cpp
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@ -1,128 +0,0 @@
//===-- ARMSjLjLoweringPass.cpp - ARM SjLj Lowering Pass ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains a pass that lowers the SjLj exception handling into
// machine instructions.
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "arm-sjlj-lowering"
#include "ARM.h"
#include "llvm/Function.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
// Hidden options for the new EH stuff.
static cl::opt<bool>
EnableNewSjLjEHPrepare("enable-new-sjlj-eh", cl::Hidden,
cl::desc("Use the new SjLj EH preparation pass"));
namespace {
class ARMSjLjLowering : public MachineFunctionPass {
Type *FunctionCtxTy;
LLVMContext *Context;
MachineFunction *MF;
const Function *F;
const TargetLowering *TLI;
const TargetInstrInfo *TII;
const TargetRegisterInfo *TRI;
/// setupFunctionContext - Setup the function context on the stack. Some of
/// the fields were set by the SjLj EH prepare pass.
int setupFunctionContext();
public:
static char ID;
ARMSjLjLowering() : MachineFunctionPass(ID) {}
virtual bool runOnMachineFunction(MachineFunction &mf);
virtual const char *getPassName() const {
return "ARM setjmp/longjmp exception handling lowering pass";
}
};
char ARMSjLjLowering::ID = 0;
} // end anonymous namespace
FunctionPass *llvm::createARMSjLjLoweringPass() {
return new ARMSjLjLowering();
}
bool ARMSjLjLowering::runOnMachineFunction(MachineFunction &mf) {
if (!EnableNewSjLjEHPrepare) return false;
MF = &mf;
F = MF->getFunction();
Context = &F->getContext();
TLI = MF->getTarget().getTargetLowering();
TII = MF->getTarget().getInstrInfo();
TRI = MF->getTarget().getRegisterInfo();
// Perform the lowering only if there are invokes.
bool HasInvokes = false;
for (Function::const_iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
if (isa<InvokeInst>(BB->getTerminator())) {
HasInvokes = true;
break;
}
if (!HasInvokes) return false;
int FrameIdx = setupFunctionContext(); (void)FrameIdx;
return true;
}
/// setupFunctionContext - Create the function context on the stack.
int ARMSjLjLowering::setupFunctionContext() {
// struct _Unwind_FunctionContext {
// // next function in stack of handlers.
// struct _Unwind_FunctionContext *prev;
//
// // set by calling function before registering to be the landing pad.
// uintptr_t resumeLocation;
//
// // set by personality handler to be parameters passed to landing pad
// // function.
// uintptr_t resumeParameters[4];
//
// // set by calling function before registering
// __personality_routine personality; // arm offset=24
//
// uintptr_t lsda // arm offset=28
//
// // variable length array, contains registers to restore
// // 0 = r7, 1 = pc, 2 = sp
// void *jbuf[]; // 5 for GCC compatibility.
// };
Type *VoidPtrTy = Type::getInt8PtrTy(*Context);
Type *Int32Ty = Type::getInt32Ty(*Context);
FunctionCtxTy =
StructType::get(VoidPtrTy, // prev
Int32Ty, // resumeLocation
ArrayType::get(Int32Ty, 4), // resumeParameters
VoidPtrTy, // personality
VoidPtrTy, // lsda
ArrayType::get(VoidPtrTy, 5), // jbuf
NULL);
uint64_t TySize = TLI->getTargetData()->getTypeAllocSize(FunctionCtxTy);
unsigned Align = TLI->getTargetData()->getPrefTypeAlignment(FunctionCtxTy);
return MF->getFrameInfo()->CreateStackObject(TySize, Align, false, false);
}

2
lib/Target/ARM/ARMTargetMachine.cpp
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@ -108,8 +108,6 @@ bool ARMBaseTargetMachine::addPreRegAlloc(PassManagerBase &PM,
PM.add(createARMLoadStoreOptimizationPass(true));
if (OptLevel != CodeGenOpt::None && Subtarget.isCortexA9())
PM.add(createMLxExpansionPass());
if (getMCAsmInfo()->getExceptionHandlingType() == ExceptionHandling::SjLj)
PM.add(createARMSjLjLoweringPass());
return true;
}