[PATCH] D137157: InstCombine] fold mul with decremented "shl -1" factor (2nd try)

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

Thanks! My testscases seem to run fine with this version of the patch.

(Note, the patch doesn't seem to apply entirely cleanly on current git main; the last hunk of the testcase seems to fail to apply here.)


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https://reviews.llvm.org/D137157