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Date: Thu, 8 May 2025 17:43:08 +0100
From: Nathan Chancellor <nathan@kernel.org>
To: kernel test robot <lkp@intel.com>
Cc: Marco Crivellari <marco.crivellari@suse.com>, llvm@lists.linux.dev,
	oe-kbuild-all@lists.linux.dev,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	"Maciej W. Rozycki" <macro@orcam.me.uk>
Subject: Re: [linux-next:master 5904/8679] <instantiation>:7:11: error:
 expected an immediate
Message-ID: <20250508164308.GC834338@ax162>
References: <202505071331.Z0N2eSkr-lkp@intel.com>
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In-Reply-To: <202505071331.Z0N2eSkr-lkp@intel.com>

On Wed, May 07, 2025 at 01:49:02PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   0a00723f4c2d0b273edd0737f236f103164a08eb
> commit: 56651128e2fbad80f632f388d6bf1f39c928267a [5904/8679] MIPS: Fix idle VS timer enqueue
> config: mips-gpr_defconfig (https://download.01.org/0day-ci/archive/20250507/202505071331.Z0N2eSkr-lkp@intel.com/config)
> compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505071331.Z0N2eSkr-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202505071331.Z0N2eSkr-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
> >> <instantiation>:7:11: error: expected an immediate
>     ori $26, r4k_wait_idle_size - 2
>              ^
>    <instantiation>:10:13: error: expected an immediate
>     addiu $26, r4k_wait_exit - r4k_wait_insn + 2
>                ^
>    <instantiation>:10:29: error: expected an immediate
>     addiu $26, r4k_wait_exit - r4k_wait_insn + 2
>                                ^
> >> <instantiation>:7:11: error: expected an immediate
>     ori $26, r4k_wait_idle_size - 2
>              ^
>    <instantiation>:10:13: error: expected an immediate
>     addiu $26, r4k_wait_exit - r4k_wait_insn + 2
>                ^
>    <instantiation>:10:29: error: expected an immediate
>     addiu $26, r4k_wait_exit - r4k_wait_insn + 2
>                                ^

I do not see this with tip of tree LLVM. It seems this was only recently
supported in the integrated assembler:

https://github.com/llvm/llvm-project/commit/b65e0947cade9bd39036a7700b54c1df4ec00756

If it is not easy to work around, we can probably just leave it broken
and tell anybody who notices to upgrade their compiler.

Cheers,
Nathan