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

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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
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9
lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -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;