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Convert a few std::strings to StringRef.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212342 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-07-04 14:12:46 +00:00
parent 2d1f275c99
commit 9f72a18a50
4 changed files with 29 additions and 17 deletions
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29
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -71,6 +71,15 @@ static bool ConvertToString(ArrayRef<uint64_t> Record, unsigned Idx,
return false;
}
ErrorOr<StringRef> BitcodeReader::convertToStringRef(ArrayRef<uint64_t> Record,
unsigned Idx) {
if (Idx > Record.size())
return Error(InvalidRecord);
return StringRef((char*)&Record[Idx], Record.size() - Idx);
}
static GlobalValue::LinkageTypes GetDecodedLinkage(unsigned Val) {
switch (Val) {
default: // Map unknown/new linkages to external
@ -2116,13 +2125,13 @@ std::error_code BitcodeReader::ParseBitcodeInto(Module *M) {
}
}
ErrorOr<std::string> BitcodeReader::parseModuleTriple() {
ErrorOr<StringRef> BitcodeReader::parseModuleTriple() {
if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
return Error(InvalidRecord);
SmallVector<uint64_t, 64> Record;
std::string Triple;
StringRef Triple;
// Read all the records for this module.
while (1) {
BitstreamEntry Entry = Stream.advanceSkippingSubblocks();
@ -2142,10 +2151,10 @@ ErrorOr<std::string> BitcodeReader::parseModuleTriple() {
switch (Stream.readRecord(Entry.ID, Record)) {
default: break; // Default behavior, ignore unknown content.
case bitc::MODULE_CODE_TRIPLE: { // TRIPLE: [strchr x N]
std::string S;
if (ConvertToString(Record, 0, S))
return Error(InvalidRecord);
Triple = S;
ErrorOr<StringRef> S = convertToStringRef(Record, 0);
if (std::error_code EC = S.getError())
return EC;
Triple = S.get();
break;
}
}
@ -2154,7 +2163,7 @@ ErrorOr<std::string> BitcodeReader::parseModuleTriple() {
return Triple;
}
ErrorOr<std::string> BitcodeReader::parseTriple() {
ErrorOr<StringRef> BitcodeReader::parseTriple() {
if (std::error_code EC = InitStream())
return EC;
@ -3469,10 +3478,10 @@ ErrorOr<Module *> llvm::parseBitcodeFile(MemoryBuffer *Buffer,
return M;
}
std::string llvm::getBitcodeTargetTriple(MemoryBuffer *Buffer,
LLVMContext &Context) {
StringRef llvm::getBitcodeTargetTriple(MemoryBuffer *Buffer,
LLVMContext &Context) {
BitcodeReader *R = new BitcodeReader(Buffer, Context);
ErrorOr<std::string> Triple = R->parseTriple();
ErrorOr<StringRef> Triple = R->parseTriple();
R->releaseBuffer();
delete R;
if (Triple.getError())