From: Nick Desaulniers <ndesaulniers@google.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: joel@jms.id.au, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 5/5] powerpc: Remove -mno-sched-epilog
Date: Fri, 14 Sep 2018 11:03:38 -0700 [thread overview]
Message-ID: <CAKwvOdn-e60VSvUzmSLGx6yx-wUzSaEtdA3q5xyZ+G_++nQSJg@mail.gmail.com> (raw)
In-Reply-To: <20180914150629.405c12cc@roar.ozlabs.ibm.com>
On Thu, Sep 13, 2018 at 9:07 PM Joel Stanley <joel@jms.id.au> wrote:
> Last time this was proposed there was an issue reported:
>
> https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-September/121214.html
Heh, did PASemi sell boxes? Interesting, I'll have to read up on my history.
On Thu, Sep 13, 2018 at 10:06 PM Nicholas Piggin <npiggin@gmail.com> wrote:
> I don't think we can remove it completely because up to at least 4.6
> maybe 4.8 has problems.
>
> I have a few patches lying around I started looking at this... I'll
> send them.
Yeah, it's too bad the link above doesn't mention gcc version.
The gcc bugreport mentions fixing the bug in
7563dc64585324f443f5ac107eb6d89ee813a2d2, not sure how to check what
release version of gcc that is? (Do they tag releases?)
Nick, do you have a test case or more context about this still being
an issue in gcc 4.8? (maybe I should wait for your patch series?)
--
Thanks,
~Nick Desaulniers
next prev parent reply other threads:[~2018-09-14 18:03 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 4:06 [PATCH v2 0/5] powerpc: Clang build fixes Joel Stanley
2018-09-14 4:06 ` [PATCH v2 1/5] powerpc/Makefiles: Fix clang/llvm build Joel Stanley
2018-09-14 17:41 ` Nick Desaulniers
2018-09-20 7:04 ` Joel Stanley
2018-09-14 4:06 ` [PATCH v2 2/5] powerpc/boot: Fix crt0.S syntax for clang Joel Stanley
2018-09-14 17:47 ` Nick Desaulniers
2018-09-14 21:08 ` Segher Boessenkool
2018-09-17 20:41 ` Nick Desaulniers
2018-09-18 1:08 ` Joel Stanley
2018-09-18 10:53 ` Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 3/5] powerpc/boot: Ensure _zimage_start is a weak symbol Joel Stanley
2018-09-14 17:50 ` Nick Desaulniers
2018-09-20 4:21 ` [v2,3/5] " Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 4/5] powerpc: Fix duplicate const clang warning in user access code Joel Stanley
2018-09-14 17:57 ` Nick Desaulniers
2018-09-19 7:45 ` Joel Stanley
2018-09-20 4:54 ` Christophe LEROY
2018-09-20 12:35 ` Michael Ellerman
2018-09-20 4:21 ` [v2, " Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 5/5] powerpc: Remove -mno-sched-epilog Joel Stanley
2018-09-14 5:06 ` Nicholas Piggin
2018-09-14 18:03 ` Nick Desaulniers [this message]
2018-09-14 20:43 ` Nicholas Piggin
2018-09-14 21:18 ` Segher Boessenkool
2018-09-14 22:20 ` Nick Desaulniers
2018-09-15 1:04 ` Segher Boessenkool
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