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[Bug target/10412] Renesas SH - Incorrect code generation
- From: "aoliva at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Jun 2003 09:38:00 -0000
- Subject: [Bug target/10412] Renesas SH - Incorrect code generation
- References: <20030415115600.10412.shrinivasa@kpitcummins.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10412
------- Additional Comments From aoliva at redhat dot com 2003-06-26 09:38 -------
Subject: Re: Renesas SH - Incorrect code generation
On Jun 26, 2003, "Dhananjay R. Deshpande" <dhananjayd@KPITCummins.com> wrote:
> From: Alexandre Oliva [mailto:aoliva@redhat.com]
> On Jun 26, 2003, "Dhananjay R. Deshpande" <dhananjayd@KPITCummins.com> wrote:
>> Both registers are marked as FIXED but are still allocated in reload
>> stage.
>> This seems wrong. Any idea of why that is so?
> Not exactly clear, but I think as MAC_REGS are marked as
> callee-saved, in the reload stage those are used as being already
> pushed on stack.
My understanding is that, if it's fixed, it shouldn't ever be chosen
by reload.