[OpenMP] Fix debug locations in GPU reductions (#228622) GPU reduction codegen temporarily switches the IRBuilder to AllocaIP to create reduction storage. In Clang, AllocaIP points before the unlocated allocapt marker, which clears the current debug location. Restoring the insertion point does not restore the debug location, so the following inlinable runtime calls lack !dbg. Use InsertPointGuard for temporary alloca insertion regions, preserving both the caller insertion point and debug location. Remove redundant saveIP/restoreIP pairs around helper emitters that already use InsertPointGuard internally to preserve the builder state. Add an OpenMPIRBuilder unit test that models Clang's allocapt insertion point and verifies the expected runtime call has a valid debug location. Assisted by gpt-5.6. --------- Co-authored-by: Abid Qadeer <HafizAbid.Qadeer@amd.com>
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.