6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-12 13:38:21 +00:00
Code Issues Projects Releases Wiki Activity

Add an unwind_to field to basic blocks, making them Users instead of Values.

Browse Source 
This is the first checkin for PR1269, the new EH infrastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47802 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2008-03-02 02:48:09 +00:00
parent fe0753efba
commit fc82fabe00
10 changed files with 146 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -1216,6 +1216,15 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
CurBB = FunctionBBs[0];
continue;
case bitc::FUNC_CODE_INST_BB_UNWINDDEST: // BB_UNWINDDEST: [bb#]
if (CurBB->getUnwindDest())
return Error("Only permit one BB_UNWINDDEST per BB");
if (Record.size() != 1)
return Error("Invalid BB_UNWINDDEST record");
CurBB->setUnwindDest(getBasicBlock(Record[0]));
continue;
case bitc::FUNC_CODE_INST_BINOP: { // BINOP: [opval, ty, opval, opcode]
unsigned OpNum = 0;
Value *LHS, *RHS;

9
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -969,13 +969,20 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
unsigned InstID = CstEnd;
// Finally, emit all the instructions, in order.
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
if (const BasicBlock *unwindDest = BB->getUnwindDest()) {
Vals.push_back(VE.getValueID(unwindDest));
Stream.EmitRecord(bitc::FUNC_CODE_INST_BB_UNWINDDEST, Vals);
Vals.clear();
}
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
I != E; ++I) {
WriteInstruction(*I, InstID, VE, Stream, Vals);
if (I->getType() != Type::VoidTy)
++InstID;
}
}
// Emit names for all the instructions etc.
WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream);