[PATCH] D127474: [SelectionDAG] fold Op0 - (X * MulC) --> Op0 + (X << log2(-MulC))

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/test/CodeGen/RISCV/mul.ll:1584
+
+define i8 @mulsub(i8 %x, i8 %y) nounwind {
+; RV32I-LABEL: mulsub:
----------------
Please rebase this on top of D127475


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127474/new/

https://reviews.llvm.org/D127474