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Differential D58064 Diff 186284 lib/Bitcode/Reader/BitcodeReader.cpp

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lib/Bitcode/Reader/BitcodeReader.cpp

Show First 20 Lines • Show All 5,361 Lines • ▼ Show 20 Lines while (true) {
Record.clear(); Record.clear();
auto BitCode = Stream.readRecord(Entry.ID, Record); auto BitCode = Stream.readRecord(Entry.ID, Record);
switch (BitCode) { switch (BitCode) {
default: // Default behavior: ignore. default: // Default behavior: ignore.
break; break;
case bitc::FS_FLAGS: { // [flags] case bitc::FS_FLAGS: { // [flags]
uint64_t Flags = Record[0]; uint64_t Flags = Record[0];
// Scan flags. // Scan flags.
assert(Flags <= 0x1f && "Unexpected bits in flag"); assert(Flags <= 0x2f && "Unexpected bits in flag");
// 1 bit: WithGlobalValueDeadStripping flag. // 1 bit: WithGlobalValueDeadStripping flag.
// Set on combined index only. // Set on combined index only.
if (Flags & 0x1) if (Flags & 0x1)
TheIndex.setWithGlobalValueDeadStripping(); TheIndex.setWithGlobalValueDeadStripping();
// 1 bit: SkipModuleByDistributedBackend flag. // 1 bit: SkipModuleByDistributedBackend flag.
// Set on combined index only. // Set on combined index only.
if (Flags & 0x2) if (Flags & 0x2)
TheIndex.setSkipModuleByDistributedBackend(); TheIndex.setSkipModuleByDistributedBackend();
// 1 bit: HasSyntheticEntryCounts flag. // 1 bit: HasSyntheticEntryCounts flag.
// Set on combined index only. // Set on combined index only.
if (Flags & 0x4) if (Flags & 0x4)
TheIndex.setHasSyntheticEntryCounts(); TheIndex.setHasSyntheticEntryCounts();
// 1 bit: DisableSplitLTOUnit flag. // 1 bit: DisableSplitLTOUnit flag.
// Set on per module indexes. It is up to the client to validate // Set on per module indexes. It is up to the client to validate
// the consistency of this flag across modules being linked. // the consistency of this flag across modules being linked.
if (Flags & 0x8) if (Flags & 0x8)
TheIndex.setEnableSplitLTOUnit(); TheIndex.setEnableSplitLTOUnit();
// 1 bit: PartiallySplitLTOUnits flag. // 1 bit: PartiallySplitLTOUnits flag.
// Set on combined index only. // Set on combined index only.
if (Flags & 0x10) if (Flags & 0x10)
TheIndex.setPartiallySplitLTOUnits(); TheIndex.setPartiallySplitLTOUnits();
// 1 bit: FlattenedProfileUsed flag.
// Set on per module indexes. This effectively ORs the flag across all
// modules being linked.
if (Flags & 0x20)
TheIndex.setFlattenedProfileUsed();
break; break;
} }
case bitc::FS_VALUE_GUID: { // [valueid, refguid] case bitc::FS_VALUE_GUID: { // [valueid, refguid]
uint64_t ValueID = Record[0]; uint64_t ValueID = Record[0];
GlobalValue::GUID RefGUID = Record[1]; GlobalValue::GUID RefGUID = Record[1];
ValueIdToValueInfoMap[ValueID] = ValueIdToValueInfoMap[ValueID] =
std::make_pair(TheIndex.getOrInsertValueInfo(RefGUID), RefGUID); std::make_pair(TheIndex.getOrInsertValueInfo(RefGUID), RefGUID);
break; break;
▲ Show 20 Lines • Show All 626 Lines • ▼ Show 20 Lines while (true) {
Record.clear(); Record.clear();
auto BitCode = Stream.readRecord(Entry.ID, Record); auto BitCode = Stream.readRecord(Entry.ID, Record);
switch (BitCode) { switch (BitCode) {
default: // Default behavior: ignore. default: // Default behavior: ignore.
break; break;
case bitc::FS_FLAGS: { // [flags] case bitc::FS_FLAGS: { // [flags]
uint64_t Flags = Record[0]; uint64_t Flags = Record[0];
// Scan flags. // Scan flags.
assert(Flags <= 0x1f && "Unexpected bits in flag"); assert(Flags <= 0x2f && "Unexpected bits in flag");
return Flags & 0x8; return Flags & 0x8;
} }
} }
} }
llvm_unreachable("Exit infinite loop"); llvm_unreachable("Exit infinite loop");
} }
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