diff options
| author | Devang Patel <dpatel@apple.com> | 2010-06-02 23:05:04 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-06-02 23:05:04 +0000 |
| commit | 6209869f83979319e2e5791382f09b83e54191e0 (patch) | |
| tree | 834ba2acc95eeea1ba39031a2c266569ca8ade0a /lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 05c68374c1c73599a0b7044ad09fb4827d128ec5 (diff) | |
Speedup bitcode writer. Do not walk all values for all functions to emit function local metadata. In one testcase, probably worst case scenario, the 70x speed up is seen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105360 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index 860b7e9a68..98d567e767 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -577,10 +577,9 @@ static void WriteFunctionLocalMetadata(const Function &F, BitstreamWriter &Stream) { bool StartedMetadataBlock = false; SmallVector<uint64_t, 64> Record; - const ValueEnumerator::ValueList &Vals = VE.getMDValues(); - + const SmallVector<const MDNode *, 8> &Vals = VE.getFunctionLocalMDValues(); for (unsigned i = 0, e = Vals.size(); i != e; ++i) - if (const MDNode *N = dyn_cast<MDNode>(Vals[i].first)) + if (const MDNode *N = Vals[i]) if (N->isFunctionLocal() && N->getFunction() == &F) { if (!StartedMetadataBlock) { Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); @@ -588,7 +587,7 @@ static void WriteFunctionLocalMetadata(const Function &F, } WriteMDNode(N, VE, Stream, Record); } - + if (StartedMetadataBlock) Stream.ExitBlock(); } |