macurtis-amd 0c480dd4b6
[clang][CodeGen] cast addr space of ReturnValue if needed (#154380)
Fixes a bug on AMDGPU targets where a pointer was stored as address
space 5, but then loaded as address space 0.

Issue found as part of [Kokkos](https://github.com/kokkos/kokkos)
testing, specifically `hip.atomics` (see
[core/unit_test/TestAtomics.hpp](https://github.com/kokkos/kokkos/blob/develop/core/unit_test/TestAtomics.hpp)).

Issue was introduced by commit
[39ec9de7c230](https://github.com/llvm/llvm-project/commit/39ec9de7c230)
- [clang][CodeGen] sret args should always point to the alloca AS, so
use that (https://github.com/llvm/llvm-project/pull/114062).
2025-08-21 04:38:55 -05:00
..

C language Family Front-end

Welcome to Clang.

This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers: