[NFC][DebugInfo] Make some block-start-position methods return iterators (#124287) As part of the "RemoveDIs" work to eliminate debug intrinsics, we're replacing methods that use Instruction*'s as positions with iterators. A number of these (such as getFirstNonPHIOrDbg) are sufficiently infrequently used that we can just replace the pointer-returning version with an iterator-returning version, hopefully without much/any disruption. Thus this patch has getFirstNonPHIOrDbg and getFirstNonPHIOrDbgOrLifetime return an iterator, and updates all call-sites. There are no concerns about the iterators returned being converted to Instruction*'s and losing the debug-info bit: because the methods skip debug intrinsics, the iterator head bit is always false anyway.
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.