llvm-project

877c39aa - [OpenMPIRBuilder] Handle empty blocks in restoreIPandDebugLoc (#212535)

[OpenMPIRBuilder] Handle empty blocks in restoreIPandDebugLoc (#212535) `restoreIPandDebugLoc` previously only recovered a debug location when the insertion block was non-empty, using its last instruction. For an empty block it left the current debug location unchanged so instructions emitted afterwards could have wrong debug location. This PR enhance `restoreIPandDebugLoc` to also handle the empty-block case: when the insertion point is at the end of an empty block, synthesize a location scoped to the parent function's subprogram provided the function has debug metadata. This helps us get a valid debug location when we switch to `CodeGenIP` in `emitOffloadingArrays` even when `CodeGenIP` is pointing to an empty `BB`. Fixes https://github.com/llvm/llvm-project/issues/212488 Co-authored-by: Cursor <cursoragent@cursor.com>