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Date: Tue, 07 Oct 2014 17:38:00 -0000
From: Jeff Law <law@redhat.com>
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To: Joern Rennecke <joern.rennecke@embecosm.com>
CC: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: RFA: fix mode confusion in caller-save.c:replace_reg_with_saved_mem
References: <CAMqJFCrfcoFTagdcAoA6k_kbS=zx80SRYdyiXZ76u8n3YxODSw@mail.gmail.com>	<5432E65B.50809@redhat.com> <CAMqJFCrDG6orf+-tvVAonoW4ca+mQ+-uwio_JqajERxc05n5Uw@mail.gmail.com>
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On 10/06/14 20:57, Joern Rennecke wrote:
> On 6 October 2014 19:58, Jeff Law <law@redhat.com> wrote:
>> What makes word_mode special here?  ie, why is special casing for word_mode
>> the right thing to do?
>
> The patch does not special-case word mode.  The if condition tests if
> smode would
> cover multiple hard registers.
> If that would be the case, smode is replaced with word_mode.
SO I'll ask another way.  Why do you want to change smode to word_mode?

Jeff