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BitcodeWriter: Split out writeMetadataRecords, NFC 

Besides being a nice cleanup, this is preparation for reusing the code
in function metadata blocks.

llvm-svn: 264555
This commit is contained in:
Duncan P. N. Exon Smith 2016-03-27 23:53:30 +00:00
parent 5465f0adc4
commit 80d153f6aa
1 changed files with 17 additions and 9 deletions
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26
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -1391,21 +1391,18 @@ static void writeMetadataStrings(ArrayRef<const Metadata *> Strings,
Record.clear();
}
static void WriteModuleMetadata(const Module &M,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (VE.getMDs().empty() && M.named_metadata_empty())
static void writeMetadataRecords(ArrayRef<const Metadata *> MDs,
const ValueEnumerator &VE,
BitstreamWriter &Stream,
SmallVectorImpl<uint64_t> &Record) {
if (MDs.empty())
return;
Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
// Initialize MDNode abbreviations.
#define HANDLE_MDNODE_LEAF(CLASS) unsigned CLASS##Abbrev = 0;
#include "llvm/IR/Metadata.def"
SmallVector<uint64_t, 64> Record;
writeMetadataStrings(VE.getMDStrings(), Stream, Record);
for (const Metadata *MD : VE.getNonMDStrings()) {
for (const Metadata *MD : MDs) {
if (const MDNode *N = dyn_cast<MDNode>(MD)) {
assert(N->isResolved() && "Expected forward references to be resolved");
@ -1421,7 +1418,18 @@ static void WriteModuleMetadata(const Module &M,
}
WriteValueAsMetadata(cast<ConstantAsMetadata>(MD), VE, Stream, Record);
}
}
static void WriteModuleMetadata(const Module &M,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (VE.getMDs().empty() && M.named_metadata_empty())
return;
Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
SmallVector<uint64_t, 64> Record;
writeMetadataStrings(VE.getMDStrings(), Stream, Record);
writeMetadataRecords(VE.getNonMDStrings(), VE, Stream, Record);
writeNamedMetadata(M, VE, Stream, Record);
Stream.ExitBlock();
}