[all-commits] [llvm/llvm-project] 22dfa1: [mlir] Fold ceil/floordiv with negative RHS. (#97031)
Johannes Reifferscheid via All-commits
all-commits at lists.llvm.org
Sun Jun 30 02:53:25 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 22dfa1aa2c6b4026b4a5d1f594197ee22af3136d
https://github.com/llvm/llvm-project/commit/22dfa1aa2c6b4026b4a5d1f594197ee22af3136d
Author: Johannes Reifferscheid <jreiffers at google.com>
Date: 2024-06-30 (Sun, 30 Jun 2024)
Changed paths:
M mlir/lib/IR/AffineExpr.cpp
M mlir/unittests/IR/AffineExprTest.cpp
Log Message:
-----------
[mlir] Fold ceil/floordiv with negative RHS. (#97031)
Currently, we only fold if the RHS is a positive constant. There doesn't
seem to be a good reason to do that. The comment claims that division by
negative values is undefined, but I suspect that was just copied over
from the `mod` simplifier.
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