[PATCH] D47237: [DSE] Calloc-strlen optimizations

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

In https://reviews.llvm.org/D47237#1111835, @efriedma wrote:

> I can't imagine a situation where this transform would trigger in practice... but maybe I don't write enough C code.   How often does this trigger on some large codebase, like the LLVM testsuite?


Currently, this is rare, but folding malloc + memset to calloc will bring more hints. This patch also introduces "support for CallInst" in MemoryLocation - what is a nice thing for any future patches.


https://reviews.llvm.org/D47237