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-rw-r--r--lib/Transforms/Utils/LowerInvoke.cpp107
1 files changed, 62 insertions, 45 deletions
diff --git a/lib/Transforms/Utils/LowerInvoke.cpp b/lib/Transforms/Utils/LowerInvoke.cpp
index 1f6b1a2a6846..9a3de2649244 100644
--- a/lib/Transforms/Utils/LowerInvoke.cpp
+++ b/lib/Transforms/Utils/LowerInvoke.cpp
@@ -40,6 +40,7 @@
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
#include "llvm/Intrinsics.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
@@ -114,7 +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 =
+ Type::getInt8PtrTy(M.getContext());
AbortMessage = 0;
if (ExpensiveEHSupport) {
// Insert a type for the linked list of jump buffers.
@@ -125,9 +127,9 @@ bool LowerInvoke::doInitialization(Module &M) {
{ // The type is recursive, so use a type holder.
std::vector<const Type*> Elements;
Elements.push_back(JmpBufTy);
- OpaqueType *OT = OpaqueType::get();
+ OpaqueType *OT = OpaqueType::get(M.getContext());
Elements.push_back(PointerType::getUnqual(OT));
- PATypeHolder JBLType(StructType::get(Elements));
+ PATypeHolder JBLType(StructType::get(M.getContext(), Elements));
OT->refineAbstractTypeTo(JBLType.get()); // Complete the cycle.
JBLinkTy = JBLType.get();
M.addTypeName("llvm.sjljeh.jmpbufty", JBLinkTy);
@@ -138,10 +140,10 @@ bool LowerInvoke::doInitialization(Module &M) {
// Now that we've done that, insert the jmpbuf list head global, unless it
// already exists.
if (!(JBListHead = M.getGlobalVariable("llvm.sjljeh.jblist", PtrJBList))) {
- JBListHead = new GlobalVariable(PtrJBList, false,
+ JBListHead = new GlobalVariable(M, PtrJBList, false,
GlobalValue::LinkOnceAnyLinkage,
Constant::getNullValue(PtrJBList),
- "llvm.sjljeh.jblist", &M);
+ "llvm.sjljeh.jblist");
}
// VisualStudio defines setjmp as _setjmp via #include <csetjmp> / <setjmp.h>,
@@ -163,7 +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);
@@ -178,26 +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(Msg->getType(), true,
+ GlobalVariable *MsgGV = new GlobalVariable(*M, Msg->getType(), true,
GlobalValue::InternalLinkage,
- Msg, "abortmsg", M);
- std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::Int32Ty));
+ Msg, "abortmsg");
+ 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. Recompile"
- " program with -enable-correct-eh-support.\n");
+ 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(Msg->getType(), true,
+ GlobalVariable *MsgGV = new GlobalVariable(*M, Msg->getType(), true,
GlobalValue::InternalLinkage,
- Msg, "abortmsg", M);
- std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::Int32Ty));
+ Msg, "abortmsg");
+ std::vector<Constant*> GEPIdx(2, Constant::getNullValue(
+ Type::getInt32Ty(M->getContext())));
AbortMessage = ConstantExpr::getGetElementPtr(MsgGV, &GEPIdx[0], 2);
}
}
@@ -249,8 +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);
@@ -265,7 +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())) {
@@ -284,7 +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());
@@ -469,13 +479,15 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
// alloca because the value needs to be live across invokes.
unsigned Align = TLI ? TLI->getJumpBufAlignment() : 0;
AllocaInst *JmpBuf =
- new AllocaInst(JBLinkTy, 0, Align, "jblink", F.begin()->begin());
+ new AllocaInst(JBLinkTy, 0, Align,
+ "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());
+ "OldBuf",
+ EntryBB->getTerminator());
// Copy the JBListHead to the alloca.
Value *OldBuf = new LoadInst(JBListHead, "oldjmpbufptr", true,
@@ -487,20 +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, "invokenum",
- EntryBB->begin());
- new StoreInst(ConstantInt::get(Type::Int32Ty, 0), InvokeNum, true,
- EntryBB->getTerminator());
+ AllocaInst *InvokeNum = new AllocaInst(Type::getInt32Ty(F.getContext()), 0,
+ "invokenum",EntryBB->begin());
+ 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 =
@@ -512,19 +525,21 @@ 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,
+ Type::getInt8PtrTy(F.getContext()),
"tmp", EntryBB->getTerminator());
Value *SJRet = CallInst::Create(SetJmpFn, JmpBufPtr, "sjret",
EntryBB->getTerminator());
// Compare the return value to zero.
- Value *IsNormal = new ICmpInst(ICmpInst::ICMP_EQ, SJRet,
+ Value *IsNormal = new ICmpInst(EntryBB->getTerminator(),
+ ICmpInst::ICMP_EQ, SJRet,
Constant::getNullValue(SJRet->getType()),
- "notunwind", EntryBB->getTerminator());
+ "notunwind");
// Nuke the uncond branch.
EntryBB->getTerminator()->eraseFromParent();
@@ -541,9 +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;
@@ -556,26 +572,27 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
}
// Load the JBList, if it's null, then there was no catch!
- Value *NotNull = new ICmpInst(ICmpInst::ICMP_NE, BufPtr,
+ Value *NotNull = new ICmpInst(*UnwindHandler, ICmpInst::ICMP_NE, BufPtr,
Constant::getNullValue(BufPtr->getType()),
- "notnull", UnwindHandler);
+ "notnull");
BranchInst::Create(UnwindBlock, TermBlock, NotNull, UnwindHandler);
// 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],
+ Type::getInt8PtrTy(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());
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 14:23:10 +0000