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PR10067: Add missing safety check to call return transformation in MemCpyOpt::process...
authorEli Friedman <eli.friedman@gmail.com>
Thu, 2 Jun 2011 21:24:42 +0000 (21:24 +0000)
committerEli Friedman <eli.friedman@gmail.com>
Thu, 2 Jun 2011 21:24:42 +0000 (21:24 +0000)
commit70d893e84b0de21205ad042c6c00148d0e3cd74e
treef07f97f31afbffebe6158cd2fea7067a6eba3299tree | snapshot
parentcf4cc84738abc5f63a05b0956e756c66c519ded5commit | diff
PR10067: Add missing safety check to call return transformation in MemCpyOpt::processStore.  If something accesses the dest of the "copy" between the call and the copy, the performCallSlotOptzn transformation is not valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132485 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Scalar/MemCpyOptimizer.cpp diff | blob | history
test/Transforms/MemCpyOpt/2011-06-02-CallSlotOverwritten.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors