llvm-project

6d23ac1a - [DebugInfo] Update policy for when to merge locations (#115349)

[DebugInfo] Update policy for when to merge locations (#115349) Following discussions on PR #114231 this patch changes the policy on merging locations, making the rule that new instructions should use a merge of the locations of all the instructions whose output is produced by the new instructions; in the case where only one instruction's output is produced, as in most InstCombine optimizations, we use only that instruction's location.