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Re: [Patch Vax] zero/sign extend patterns need to be SUBREG aware
- From: Matt Thomas <matt at 3am-software dot com>
- To: Jan-Benedict Glaw <jbglaw at lug-owl dot de>
- Cc: James Greenhalgh <james dot greenhalgh at arm dot com>, gcc-patches at gcc dot gnu dot org
- Date: Fri, 19 Jun 2015 09:30:21 -0700
- Subject: Re: [Patch Vax] zero/sign extend patterns need to be SUBREG aware
- Authentication-results: sourceware.org; auth=none
- References: <1434448728-13318-1-git-send-email-james dot greenhalgh at arm dot com> <20150619155105 dot GK16812 at lug-owl dot de>
> On Jun 19, 2015, at 8:51 AM, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
>
> Hi James,
>
> On Tue, 2015-06-16 10:58:48 +0100, James Greenhalgh <james.greenhalgh@arm.com> wrote:
>> The testcase in this patch, from libgcc, causes an ICE in the Vax
>> build.
> [...]
>> As far as I know, reload is going to get rid of these SUBREGs
>> for us, so we don't need to modify the output statement.
>>
>> Tested that this restores the VAX build and that the code-gen is
>> sensible for the testcase.
>>
>> OK?
>
> Looks good to me, but Matt has to ACK this fix.
I so ACK.