[PATCH] D101176: [SimplifyLibCalls] Transform malloc to calloc with redundant memsets elimination (PR25892)
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu May 6 13:04:31 PDT 2021
efriedma added a comment.
> some kind of matching for icmp+br pattern.
Do you actually need to check this? The transform is correct either way... although maybe it's a bit dubious to transform malloc->calloc if the memset is rarely executed and/or smaller than the allocation.
DSE currently includes optimizations for memset of calloc.
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https://reviews.llvm.org/D101176/new/
https://reviews.llvm.org/D101176
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