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Do not allow bytecode files with unresolved references to be read. Doing

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so lets wierd ConstantPlaceholder objects sneak into the system which
confuses it greatly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18487 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-12-04 05:28:27 +00:00
parent 368cb8e67e
commit 02dce169c8
1 changed files with 7 additions and 1 deletions
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8
lib/Bytecode/Reader/Reader.cpp
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@ -1312,7 +1312,7 @@ Constant *BytecodeReader::ParseConstantValue(unsigned TypeID) {
// Construct a ConstantExpr of the appropriate kind // Construct a ConstantExpr of the appropriate kind
if (isExprNumArgs == 1) { // All one-operand expressions if (isExprNumArgs == 1) { // All one-operand expressions
if (Opcode != Instruction::Cast) if (Opcode != Instruction::Cast)
error("Only Cast instruction has one argument for ConstantExpr"); error("Only cast instruction has one argument for ConstantExpr");
Constant* Result = ConstantExpr::getCast(ArgVec[0], getType(TypeID)); Constant* Result = ConstantExpr::getCast(ArgVec[0], getType(TypeID));
if (Handler) Handler->handleConstantExpression(Opcode, ArgVec, Result); if (Handler) Handler->handleConstantExpression(Opcode, ArgVec, Result);
@ -1568,6 +1568,12 @@ void BytecodeReader::ParseConstantPool(ValueTable &Tab,
} }
} }
} }
// After we have finished parsing the constant pool, we had better not have
// any dangling references left.
if (!ConstantFwdRefs.empty())
error("Unresolved constant references exist!");
checkPastBlockEnd("Constant Pool"); checkPastBlockEnd("Constant Pool");
if (Handler) Handler->handleGlobalConstantsEnd(); if (Handler) Handler->handleGlobalConstantsEnd();
} }