From: Bernd Schmidt <bschmidt@redhat.com>
To: Andreas Schwab <schwab@linux-m68k.org>,
Kelvin Nilsen <kdnilsen@linux.vnet.ibm.com>
Cc: gcc-patches@gcc.gnu.org, law@redhat.com
Subject: Re: [PATCH v4] PR48344: Fix unrecognizable insn error with -fstack-limit-register=r2
Date: Thu, 13 Oct 2016 10:58:00 -0000 [thread overview]
Message-ID: <53c5ba51-2216-be0f-a574-772d217e7dd0@redhat.com> (raw)
In-Reply-To: <87shsh88c6.fsf@linux-m68k.org>
On 09/30/2016 10:02 PM, Andreas Schwab wrote:
> On Feb 11 2016, Kelvin Nilsen <kdnilsen@linux.vnet.ibm.com> wrote:
>
>> * opts-global.c (handle_common_deferred_options): Introduce and
>> initialize two global variables to remember command-line options
>> specifying a stack-limiting register.
>> * opts.h: Add extern declarations of the two new global variables.
>> * emit-rtl.c (init_emit_once): Initialize the stack_limit_rtx
>> variable based on the values of the two new global variables.
>
> That breaks gcc.target/m68k/stack-limit-1.c:
>
> /daten/aranym/gcc/test/gcc/testsuite/gcc.target/m68k/stack-limit-1.c: In function 'dummy':
> /daten/aranym/gcc/test/gcc/testsuite/gcc.target/m68k/stack-limit-1.c:6:1: error: unrecognizable insn:
> (insn 10 9 11 (trap_if (ltu (cc0)
> (const_int 0 [0]))
> (const_int 1 [0x1])) /daten/aranym/gcc/test/gcc/testsuite/gcc.target/m68k/stack-limit-1.c:6 -1
> (nil))
> /daten/aranym/gcc/test/gcc/testsuite/gcc.target/m68k/stack-limit-1.c:6:1: internal compiler error: in extract_insn, at recog.c:2287
>
Please file a PR if this isn't fixed yet.
Bernd
next prev parent reply other threads:[~2016-10-13 10:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-11 15:12 Kelvin Nilsen
2016-02-11 15:42 ` Bernd Schmidt
2016-09-30 20:11 ` Andreas Schwab
2016-10-13 10:58 ` Bernd Schmidt [this message]
2016-10-13 20:23 ` Andreas Schwab
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