[PATCH] D101391: [DSE] Eliminate zero memset after calloc
Nikita Popov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 27 13:16:49 PDT 2021
nikic added a comment.
I think it would be good to add a negative test where there is a store to the calloc in the meantime.
================
Comment at: llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp:1783
+ if (DefUOInst && isCallocLikeFn(DefUOInst, &TLI)) {
+
+ auto *UnderlyingDef = cast<MemoryDef>(MSSA.getMemoryAccess(DefUOInst));
----------------
nit: unnecessary newline.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D101391/new/
https://reviews.llvm.org/D101391
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