[Pkg-rust-maintainers] Bug#898982: rustc: Please re-add workaround for LLVM bug 11663

[John Paul Adrian Glaubitz]

Source: rustc
Severity: normal
User: debian-sparc at lists.debian.org
Usertags: sparc64

Hello!

With Rust 1.25, upstream unfortunately accidentally dropped an important
workaround in compiler-rt which is necessary for the Rust compiler to
work correctly on various targets including mips64, riscv64 and sparc64.

The patch can be found in [1]. Please re-add the hunk to "int_lib.h"
in compiler-rt, both for Rust 1.25 and 1.26.

The workaround is being upstreamed with LLVM, but it has not fully
landed there yet [2, 3]. It has been partially fixed, but not
completely.

Thanks,
Adrian

> [1] https://github.com/rust-lang/compiler-rt/pull/35/files
> [2] https://reviews.llvm.org/D42902
> [3] https://reviews.llvm.org/D43146

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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