HomePhabricator

[DebugInfo][LoopVectorize] Preserve DL in generated phi instruction

Description

[DebugInfo][LoopVectorize] Preserve DL in generated phi instruction

When creating phi instructions to resume at the scalar part of the loop,
copy the DebugLoc from the original phi over to the new one.

Differential Revision: https://reviews.llvm.org/D48769