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BitcodeWriter: Refactor common computation of bits required for a type index.

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Suggested by Duncan. Happy to bikeshed the name, cache the result, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230410 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-02-25 00:51:52 +00:00
parent b4ecacfe06
commit 6bc72f8262
3 changed files with 9 additions and 4 deletions
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4
lib/Bitcode/Writer/ValueEnumerator.cpp
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@ -803,3 +803,7 @@ unsigned ValueEnumerator::getGlobalBasicBlockID(const BasicBlock *BB) const {
IncorporateFunctionInfoGlobalBBIDs(BB->getParent(), GlobalBasicBlockIDs);
return getGlobalBasicBlockID(BB);
}
uint64_t ValueEnumerator::computeBitsRequiredForTypeIndicies() const {
return Log2_32_Ceil(getTypes().size() + 1);
}