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move some code around, fix a bug in the reader reading globalinits (which

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I just introduced), stub out function reading, purge aggregate values from
the value table before reading functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36463 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-04-26 03:27:58 +00:00
parent eb0107af86
commit 198f34ac35
5 changed files with 123 additions and 69 deletions
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14
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -408,10 +408,10 @@ bool BitcodeReader::ResolveGlobalAndAliasInits() {
AliasInitWorklist.swap(AliasInits);
while (!GlobalInitWorklist.empty()) {
unsigned ValID = GlobalInits.back().second;
unsigned ValID = GlobalInitWorklist.back().second;
if (ValID >= ValueList.size()) {
// Not ready to resolve this yet, it requires something later in the file.
GlobalInitWorklist.push_back(GlobalInits.back());
GlobalInits.push_back(GlobalInitWorklist.back());
} else {
if (Constant *C = dyn_cast<Constant>(ValueList[ValID]))
GlobalInitWorklist.back().first->setInitializer(C);
@ -826,7 +826,7 @@ bool BitcodeReader::ParseModule(BitstreamReader &Stream,
break;
}
// ALIAS: [alias type, aliasee val#, linkage]
case bitc::MODULE_CODE_ALIAS:
case bitc::MODULE_CODE_ALIAS: {
if (Record.size() < 3)
return Error("Invalid MODULE_ALIAS record");
const Type *Ty = getTypeByID(Record[0]);
@ -839,6 +839,14 @@ bool BitcodeReader::ParseModule(BitstreamReader &Stream,
AliasInits.push_back(std::make_pair(NewGA, Record[1]));
break;
}
/// MODULE_CODE_PURGEVALS: [numvals]
case bitc::MODULE_CODE_PURGEVALS:
// Trim down the value list to the specified size.
if (Record.size() < 1 || Record[0] > ValueList.size())
return Error("Invalid MODULE_PURGEVALS record");
ValueList.shrinkTo(Record[0]);
break;
}
Record.clear();
}

5
lib/Bitcode/Reader/BitcodeReader.h
View File

@ -41,6 +41,11 @@ public:
Value *back() const { return Uses.back(); }
void pop_back() { Uses.pop_back(); --NumOperands; }
bool empty() const { return NumOperands == 0; }
void shrinkTo(unsigned N) {
assert(N < NumOperands && "Invalid shrinkTo request!");
Uses.resize(N);
NumOperands = N;
}
virtual void print(std::ostream&) const {}
Constant *getConstantFwdRef(unsigned Idx, const Type *Ty);