[PATCH] D129636: Fix a LSR debug invariance issue
Jeremy Morse via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 13 05:59:09 PDT 2022
jmorse added a comment.
Thanks for hunting this down, caching layers affecting codegen sounds hard to debug.
I'm no SCEV expert, so a couple of possibly obvious questions:
- Is it safe to store the SCEV* for a Value that's then forgotten?
- Is there a risk that the presence of debug-info will now cause a SCEV to be forgotten that _should_ have been remembered, because of unconditionally forgetting a SCEV if it's used by debug-info?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D129636/new/
https://reviews.llvm.org/D129636
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