From: Nathan Chancellor <natechancellor@gmail.com>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: arnd@arndb.de, David1.Zhou@amd.com, Hawking.Zhang@amd.com,
airlied@linux.ie, alexander.deucher@amd.com,
amd-gfx@lists.freedesktop.org, christian.koenig@amd.com,
clang-built-linux@googlegroups.com, daniel@ffwll.ch,
dri-devel@lists.freedesktop.org, le.ma@amd.com,
linux-kernel@vger.kernel.org, ray.huang@amd.com
Subject: Re: [PATCH 6/6] [RESEND] drm/amdgpu: work around llvm bug #42576
Date: Wed, 2 Oct 2019 10:07:33 -0700 [thread overview]
Message-ID: <20191002170733.GB1076951@archlinux-threadripper> (raw)
In-Reply-To: <20191002165137.15726-1-ndesaulniers@google.com>
On Wed, Oct 02, 2019 at 09:51:37AM -0700, 'Nick Desaulniers' via Clang Built Linux wrote:
> > Apparently this bug is still present in both the released clang-9
> > and the current development version of clang-10.
> > I was hoping we would not need a workaround in clang-9+, but
> > it seems that we do.
>
> I think I'd rather:
> 1. mark AMDGPU BROKEN if CC_IS_CLANG. There are numerous other issues building
> a working driver here.
The only reason I am not thrilled about this is we will lose out on
warning coverage while the compiler bug gets fixed. I think the AMDGPU
drivers have been the single biggest source of clang warnings.
I think something like:
depends on CC_IS_GCC || (CC_IS_CLANG && COMPILE_TEST)
would end up avoiding the runtime issues and give us warning coverage.
The only issue is that we would still need this patch...
Cheers,
Nathan
next prev parent reply other threads:[~2019-10-02 17:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-02 12:01 [PATCH 0/6] amdgpu build fixes Arnd Bergmann
2019-10-02 12:01 ` [PATCH 1/6] drm/amdgpu: make pmu support optional, again Arnd Bergmann
2019-10-02 12:01 ` [PATCH 2/6] drm/amdgpu: hide another #warning Arnd Bergmann
2019-10-02 12:01 ` [PATCH 3/6] drm/amdgpu: display_mode_vba_21: remove uint typedef Arnd Bergmann
2019-10-02 12:01 ` [PATCH 4/6] drm/amd/display: fix dcn21 Makefile for clang Arnd Bergmann
2019-10-02 14:17 ` Alex Deucher
2019-10-02 14:51 ` Arnd Bergmann
2019-10-02 15:12 ` Alex Deucher
2019-10-02 15:39 ` Arnd Bergmann
2019-10-02 16:33 ` Alex Deucher
2019-10-02 21:14 ` Nick Desaulniers
2019-10-02 21:24 ` Alex Deucher
2019-10-02 21:27 ` Nick Desaulniers
2019-10-02 12:01 ` [PATCH 5/6] [RESEND] drm/amd/display: hide an unused variable Arnd Bergmann
2019-10-02 12:01 ` [PATCH 6/6] [RESEND] drm/amdgpu: work around llvm bug #42576 Arnd Bergmann
2019-10-02 16:51 ` Nick Desaulniers
2019-10-02 17:07 ` Nathan Chancellor [this message]
2019-10-02 21:06 ` Nick Desaulniers
2019-10-02 18:47 ` [PATCH 0/6] amdgpu build fixes Alex Deucher
2019-10-02 18:53 ` Arnd Bergmann
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