From: Peter Zijlstra <peterz@infradead.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: linux-kernel@vger.kernel.org,
Josh Poimboeuf <jpoimboe@redhat.com>,
linux-toolchains@vger.kernel.org
Subject: Re: objtool warning, branch, patch, and .config (GCC bug)
Date: Thu, 26 May 2022 10:08:49 +0200 [thread overview]
Message-ID: <20220526080849.GF6479@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <20220526080313.GM2578@worktop.programming.kicks-ass.net>
On Thu, May 26, 2022 at 10:03:13AM +0200, Peter Zijlstra wrote:
> Which is just bloody weird/broken if you ask me. What's worse, GCC-10
> does the same. Only when I use GCC-11 do I get sensible code again:
Just to clarify, I can reproduce using:
gcc-9 (Debian 9.4.0-5) 9.4.0
gcc-10 (Debian 10.3.0-15) 10.3.0
The good compiler is:
gcc-11 (Debian 11.3.0-1) 11.3.0
next prev parent reply other threads:[~2022-05-26 8:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220525173332.GA4008581@paulmck-ThinkPad-P17-Gen-1>
[not found] ` <20220525173444.GA4010526@paulmck-ThinkPad-P17-Gen-1>
2022-05-26 8:03 ` objtool warning, branch, patch, and .config (GCC bug) Peter Zijlstra
2022-05-26 8:08 ` Peter Zijlstra [this message]
2022-05-26 9:02 ` Jakub Jelinek
[not found] ` <20220526094124.GN2578@worktop.programming.kicks-ass.net>
2022-05-26 11:32 ` Jakub Jelinek
2022-05-26 11:54 ` Peter Zijlstra
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