[PATCH] D89885: [MemLoc] Adjust memccpy support in MemoryLocation::getForArgument
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 28 04:38:27 PDT 2020
fhahn added inline comments.
================
Comment at: llvm/lib/Analysis/MemoryLocation.cpp:261
+ if (ArgIdx == 0)
+ // It is not known how many bytes are written to the dest arg.
+ break;
----------------
I think it might be slightly better to mention here that we only know an upper bound on the number of bytes written and this upper bound is unsafe to use for writes.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D89885/new/
https://reviews.llvm.org/D89885
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