llvm-project

9e1a185b - [InstCombine] Fold intrinsics over multi-use selects when the intrinsic is the only user (#172723)

[InstCombine] Fold intrinsics over multi-use selects when the intrinsic is the only user (#172723) Closes #172176. Previously, `FoldOpIntoSelect` wouldn't fold multi-use selects if `MultiUse` wasn't explicitly true. This prevents useful folding when the select is used multiple times in the same intrinsic call. Similar to what is done in `foldOpIntoPhi`, we'll now check that all of the uses come from a single user, rather than checking that there is only one use.