[flang] finish BIND(C) VALUE derived type passing ABI on X86-64 (#77742) Derived type passed with VALUE in BIND(C) context must be passed like C struct and LLVM is not implementing the ABI for this (it is up to the frontends like clang). Previous patch #75802 implemented the simple cases where the derived type have one field, this patch implements the general case. Note that the generated LLVM IR is compliant from a X86-64 C ABI point of view and compatible with clang generated assembly, but that it is not guaranteed to match the LLVM IR signatures generated by clang for the C equivalent functions because several LLVM IR signatures may lead to the same X86-64 signature.
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.