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authorSanjay Patel <spatel@rotateright.com>2017-02-13 23:10:51 +0000
committerSanjay Patel <spatel@rotateright.com>2017-02-13 23:10:51 +0000
commit4f74216da08f8ae1947a858dbb0c4912f21141d4 (patch)
treeaef84f1bfcc11be8204046f3ca79ad10df264115 /clang/lib/Parse/ParseDecl.cpp
parente1958a083a78f33566fd2b40838c10864807b9e2 (diff)
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[FunctionAttrs] try to extend nonnull-ness of arguments from a callsite back to its parent function
As discussed here: http://lists.llvm.org/pipermail/llvm-dev/2016-December/108182.html ...we should be able to propagate 'nonnull' info from a callsite back to its parent. The original motivation for this patch is our botched optimization of "dyn_cast" (PR28430), but this won't solve that problem. The transform is currently disabled by default while we wait for clang to work-around potential security problems: http://lists.llvm.org/pipermail/cfe-dev/2017-January/052066.html Differential Revision: https://reviews.llvm.org/D27855 llvm-svn: 294998
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