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Implement reading of arbitrary precision integers. 

llvm-svn: 34718
This commit is contained in:
Reid Spencer 2007-02-28 02:25:48 +00:00
parent 90c26a31ac
commit b5cf20c939
1 changed files with 9 additions and 4 deletions
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13
llvm/lib/Bytecode/Reader/Reader.cpp
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@ -1264,8 +1264,14 @@ Value *BytecodeReader::ParseConstantPoolValue(unsigned TypeID) {
error("Invalid constant integer read.");
Result = ConstantInt::get(IT, Val);
if (Handler) Handler->handleConstantValue(Result);
} else
assert(0 && "Integer types > 64 bits not supported");
} else {
uint32_t numWords = read_vbr_uint();
uint64_t *data = new uint64_t[numWords];
for (uint32_t i = 0; i < numWords; ++i)
data[i] = read_vbr_uint64();
Result = ConstantInt::get(IT, APInt(IT->getBitWidth(), numWords, data));
if (Handler) Handler->handleConstantValue(Result);
}
break;
}
case Type::FloatTyID: {
@ -1356,8 +1362,7 @@ Value *BytecodeReader::ParseConstantPoolValue(unsigned TypeID) {
// to a null value in a way that isn't predicted when a .bc file is initially
// produced.
assert((!isa<Constant>(Result) || !cast<Constant>(Result)->isNullValue()) ||
!hasImplicitNull(TypeID) &&
"Cannot read null values from bytecode!");
!hasImplicitNull(TypeID) && "Cannot read null values from bytecode!");
return Result;
}