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As a follow up of the bad alloc handler patch, this patch introduces nullptr checks on pointers returned from the
malloc/realloc/calloc functions. In addition some memory size assignments are moved behind the allocation
of the corresponding memory to fulfill exception safe memory management (RAII).
patch by Klaus Kretzschmar
Differential Revision: https://reviews.llvm.org/D35414
llvm-svn: 308576
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Summary:
If malloc/realloc fails then the SmallVector becomes unusable since begin() and
end() will return NULL. This is unlikely to occur but was the cause of recent
bugpoint test failures on my machine.
It is not clear whether not checking for malloc/realloc failure is a deliberate
decision and adding checks has the potential to impact compiler performance.
Therefore, this patch only adds the check to builds with assertions enabled for
the moment.
Reviewers: bkramer
Reviewed By: bkramer
Subscribers: bkramer, llvm-commits
Differential Revision: http://reviews.llvm.org/D9520
llvm-svn: 239392
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forcing 16-byte alignment. This fixes misaligned SmallVector accesses via ExtractValueInst's SmallVector data member.
llvm-svn: 162331
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capacity and remove the workaround in SmallVector<T,0>. There are some
theoretical benefits to a N->2N+1 growth policy anyway.
llvm-svn: 112870
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realloc implementation can try to expand the allocated memory block in-place,
avoiding the copy.
llvm-svn: 105605
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SmallVectorBase::grow_pod out of line, finally satisfying PR3758.
llvm-svn: 91529
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