Florian Hahn 8eaf38e0eb
[CodeExtractor] Use subset of function attributes for extracted function. ...
In addition to target-dependent attributes, we can also preserve a
white-listed subset of target independent function attributes. The white-list
excludes problematic attributes, most prominently:
* attributes related to memory accesses, as alloca instructions
could be moved in/out of the extracted block
* control-flow dependent attributes, like no_return or thunk, as the
relerelevant instructions might or might not get extracted.
Thanks @efriedma and @aemerson for providing a set of attributes that cannot be
propagated.
Reviewers: efriedma, davidxl, davide, silvas
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D41334
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321961 91177308-0d34-0410-b5e6-96231b3b80d8
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