[PATCH] D104075: [ScalarEvolution] Merge howManyGreaterThans with howManyLessThans.
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jun 11 10:11:17 PDT 2021
efriedma added inline comments.
================
Comment at: llvm/lib/Analysis/ScalarEvolution.cpp:11566
+ ? getNotSCEV(getSMinExpr(getNotSCEV(RHS), getNotSCEV(Start)))
+ : getNotSCEV(getUMinExpr(getNotSCEV(RHS), getNotSCEV(Start)));
+ }
----------------
nikic wrote:
> I'm confused by what you're doing here. `getNotSCEV` has a fold that does `~umin(~x, ~y)` to `umax(x, y)`, so the structure you're using here should get undone?
`getNotSCEV(RHS)` and `getNotSCEV(Start)` will likely be simplified.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D104075/new/
https://reviews.llvm.org/D104075
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