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Be lazy about loading metadata in IRObjectFile.

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This speeds up llvm-ar building lib64/libclangSema.a with debug IR files
from 8.658015807 seconds to just 0.351036519 seconds :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232221 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-03-13 21:54:20 +00:00
parent fbbc2cc358
commit dc6141a4ff
6 changed files with 15 additions and 2 deletions
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4
lib/Object/IRObjectFile.cpp
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@ -300,7 +300,9 @@ llvm::object::IRObjectFile::create(MemoryBufferRef Object,
std::unique_ptr<MemoryBuffer> Buff(
MemoryBuffer::getMemBuffer(BCOrErr.get(), false));
ErrorOr<Module *> MOrErr = getLazyBitcodeModule(std::move(Buff), Context);
ErrorOr<Module *> MOrErr =
getLazyBitcodeModule(std::move(Buff), Context, nullptr,
/*ShouldLazyLoadMetadata*/ true);
if (std::error_code EC = MOrErr.getError())
return EC;