6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-15 05:24:01 +00:00
Code Issues Projects Releases Wiki Activity

Push LLVMContexts through the IntegerType APIs.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2009-08-13 21:58:54 +00:00
parent d163e8b14c
commit 1d0be15f89
160 changed files with 1984 additions and 1597 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
lib/Transforms/Utils/LowerInvoke.cpp
View File

@ -115,7 +115,8 @@ FunctionPass *llvm::createLowerInvokePass(const TargetLowering *TLI) {
// doInitialization - Make sure that there is a prototype for abort in the
// current module.
bool LowerInvoke::doInitialization(Module &M) {
const Type *VoidPtrTy = PointerType::getUnqual(Type::Int8Ty);
const Type *VoidPtrTy =
PointerType::getUnqual(Type::getInt8Ty(M.getContext()));
AbortMessage = 0;
if (ExpensiveEHSupport) {
// Insert a type for the linked list of jump buffers.
@ -164,7 +165,8 @@ bool LowerInvoke::doInitialization(Module &M) {
}
// We need the 'write' and 'abort' functions for both models.
AbortFn = M.getOrInsertFunction("abort", Type::VoidTy, (Type *)0);
AbortFn = M.getOrInsertFunction("abort", Type::getVoidTy(M.getContext()),
(Type *)0);
#if 0 // "write" is Unix-specific.. code is going away soon anyway.
WriteFn = M.getOrInsertFunction("write", Type::VoidTy, Type::Int32Ty,
VoidPtrTy, Type::Int32Ty, (Type *)0);
@ -179,26 +181,30 @@ void LowerInvoke::createAbortMessage(Module *M) {
// The abort message for expensive EH support tells the user that the
// program 'unwound' without an 'invoke' instruction.
Constant *Msg =
ConstantArray::get("ERROR: Exception thrown, but not caught!\n");
ConstantArray::get(M->getContext(),
"ERROR: Exception thrown, but not caught!\n");
AbortMessageLength = Msg->getNumOperands()-1; // don't include \0
GlobalVariable *MsgGV = new GlobalVariable(*M, Msg->getType(), true,
GlobalValue::InternalLinkage,
Msg, "abortmsg");
std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::Int32Ty));
std::vector<Constant*> GEPIdx(2,
Constant::getNullValue(Type::getInt32Ty(M->getContext())));
AbortMessage = ConstantExpr::getGetElementPtr(MsgGV, &GEPIdx[0], 2);
} else {
// The abort message for cheap EH support tells the user that EH is not
// enabled.
Constant *Msg =
ConstantArray::get("Exception handler needed, but not enabled."
ConstantArray::get(M->getContext(),
"Exception handler needed, but not enabled."
"Recompile program with -enable-correct-eh-support.\n");
AbortMessageLength = Msg->getNumOperands()-1; // don't include \0
GlobalVariable *MsgGV = new GlobalVariable(*M, Msg->getType(), true,
GlobalValue::InternalLinkage,
Msg, "abortmsg");
std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::Int32Ty));
std::vector<Constant*> GEPIdx(2, Constant::getNullValue(
Type::getInt32Ty(M->getContext())));
AbortMessage = ConstantExpr::getGetElementPtr(MsgGV, &GEPIdx[0], 2);
}
}
@ -250,8 +256,9 @@ bool LowerInvoke::insertCheapEHSupport(Function &F) {
// Insert a return instruction. This really should be a "barrier", as it
// is unreachable.
ReturnInst::Create(F.getReturnType() == Type::VoidTy ? 0 :
Constant::getNullValue(F.getReturnType()), UI);
ReturnInst::Create(F.getContext(),
F.getReturnType() == Type::getVoidTy(F.getContext()) ?
0 : Constant::getNullValue(F.getReturnType()), UI);
// Remove the unwind instruction now.
BB->getInstList().erase(UI);
@ -266,7 +273,8 @@ bool LowerInvoke::insertCheapEHSupport(Function &F) {
void LowerInvoke::rewriteExpensiveInvoke(InvokeInst *II, unsigned InvokeNo,
AllocaInst *InvokeNum,
SwitchInst *CatchSwitch) {
ConstantInt *InvokeNoC = ConstantInt::get(Type::Int32Ty, InvokeNo);
ConstantInt *InvokeNoC = ConstantInt::get(Type::getInt32Ty(II->getContext()),
InvokeNo);
// If the unwind edge has phi nodes, split the edge.
if (isa<PHINode>(II->getUnwindDest()->begin())) {
@ -285,7 +293,8 @@ void LowerInvoke::rewriteExpensiveInvoke(InvokeInst *II, unsigned InvokeNo,
BasicBlock::iterator NI = II->getNormalDest()->getFirstNonPHI();
// nonvolatile.
new StoreInst(Constant::getNullValue(Type::Int32Ty), InvokeNum, false, NI);
new StoreInst(Constant::getNullValue(Type::getInt32Ty(II->getContext())),
InvokeNum, false, NI);
// Add a switch case to our unwind block.
CatchSwitch->addCase(InvokeNoC, II->getUnwindDest());
@ -474,8 +483,8 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
"jblink", F.begin()->begin());
std::vector<Value*> Idx;
Idx.push_back(Constant::getNullValue(Type::Int32Ty));
Idx.push_back(ConstantInt::get(Type::Int32Ty, 1));
Idx.push_back(Constant::getNullValue(Type::getInt32Ty(F.getContext())));
Idx.push_back(ConstantInt::get(Type::getInt32Ty(F.getContext()), 1));
OldJmpBufPtr = GetElementPtrInst::Create(JmpBuf, Idx.begin(), Idx.end(),
"OldBuf",
EntryBB->getTerminator());
@ -490,20 +499,21 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
// Create the catch block. The catch block is basically a big switch
// statement that goes to all of the invoke catch blocks.
BasicBlock *CatchBB = BasicBlock::Create("setjmp.catch", &F);
BasicBlock *CatchBB =
BasicBlock::Create(F.getContext(), "setjmp.catch", &F);
// Create an alloca which keeps track of which invoke is currently
// executing. For normal calls it contains zero.
AllocaInst *InvokeNum = new AllocaInst(Type::Int32Ty, 0,
AllocaInst *InvokeNum = new AllocaInst(Type::getInt32Ty(F.getContext()), 0,
"invokenum",EntryBB->begin());
new StoreInst(ConstantInt::get(Type::Int32Ty, 0), InvokeNum, true,
EntryBB->getTerminator());
new StoreInst(ConstantInt::get(Type::getInt32Ty(F.getContext()), 0),
InvokeNum, true, EntryBB->getTerminator());
// Insert a load in the Catch block, and a switch on its value. By default,
// we go to a block that just does an unwind (which is the correct action
// for a standard call).
BasicBlock *UnwindBB = BasicBlock::Create("unwindbb", &F);
Unwinds.push_back(new UnwindInst(UnwindBB));
BasicBlock *UnwindBB = BasicBlock::Create(F.getContext(), "unwindbb", &F);
Unwinds.push_back(new UnwindInst(F.getContext(), UnwindBB));
Value *CatchLoad = new LoadInst(InvokeNum, "invoke.num", true, CatchBB);
SwitchInst *CatchSwitch =
@ -515,11 +525,12 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
BasicBlock *ContBlock = EntryBB->splitBasicBlock(EntryBB->getTerminator(),
"setjmp.cont");
Idx[1] = ConstantInt::get(Type::Int32Ty, 0);
Idx[1] = ConstantInt::get(Type::getInt32Ty(F.getContext()), 0);
Value *JmpBufPtr = GetElementPtrInst::Create(JmpBuf, Idx.begin(), Idx.end(),
"TheJmpBuf",
EntryBB->getTerminator());
JmpBufPtr = new BitCastInst(JmpBufPtr, PointerType::getUnqual(Type::Int8Ty),
JmpBufPtr = new BitCastInst(JmpBufPtr,
PointerType::getUnqual(Type::getInt8Ty(F.getContext())),
"tmp", EntryBB->getTerminator());
Value *SJRet = CallInst::Create(SetJmpFn, JmpBufPtr, "sjret",
EntryBB->getTerminator());
@ -545,9 +556,10 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
// Create three new blocks, the block to load the jmpbuf ptr and compare
// against null, the block to do the longjmp, and the error block for if it
// is null. Add them at the end of the function because they are not hot.
BasicBlock *UnwindHandler = BasicBlock::Create("dounwind", &F);
BasicBlock *UnwindBlock = BasicBlock::Create("unwind", &F);
BasicBlock *TermBlock = BasicBlock::Create("unwinderror", &F);
BasicBlock *UnwindHandler = BasicBlock::Create(F.getContext(),
"dounwind", &F);
BasicBlock *UnwindBlock = BasicBlock::Create(F.getContext(), "unwind", &F);
BasicBlock *TermBlock = BasicBlock::Create(F.getContext(), "unwinderror", &F);
// If this function contains an invoke, restore the old jumpbuf ptr.
Value *BufPtr;
@ -568,18 +580,19 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
// Create the block to do the longjmp.
// Get a pointer to the jmpbuf and longjmp.
std::vector<Value*> Idx;
Idx.push_back(Constant::getNullValue(Type::Int32Ty));
Idx.push_back(ConstantInt::get(Type::Int32Ty, 0));
Idx.push_back(Constant::getNullValue(Type::getInt32Ty(F.getContext())));
Idx.push_back(ConstantInt::get(Type::getInt32Ty(F.getContext()), 0));
Idx[0] = GetElementPtrInst::Create(BufPtr, Idx.begin(), Idx.end(), "JmpBuf",
UnwindBlock);
Idx[0] = new BitCastInst(Idx[0], PointerType::getUnqual(Type::Int8Ty),
Idx[0] = new BitCastInst(Idx[0],
PointerType::getUnqual(Type::getInt8Ty(F.getContext())),
"tmp", UnwindBlock);
Idx[1] = ConstantInt::get(Type::Int32Ty, 1);
Idx[1] = ConstantInt::get(Type::getInt32Ty(F.getContext()), 1);
CallInst::Create(LongJmpFn, Idx.begin(), Idx.end(), "", UnwindBlock);
new UnreachableInst(UnwindBlock);
new UnreachableInst(F.getContext(), UnwindBlock);
// Set up the term block ("throw without a catch").
new UnreachableInst(TermBlock);
new UnreachableInst(F.getContext(), TermBlock);
// Insert a new call to write(2, AbortMessage, AbortMessageLength);
writeAbortMessage(TermBlock->getTerminator());