Richard Biener writes:
> On Fri, Sep 13, 2013 at 10:33 AM, Richard Sandiford
> wrote:
>> Richard Biener writes:
Yeah. I don't think it makes sense to canonise PSI to 32 bits when we
know it has fewer than 32 bits. It's still going to be wrong, and will
still defeat one of the ma
On Fri, Sep 13, 2013 at 10:33 AM, Richard Sandiford
wrote:
> Richard Biener writes:
>>> Yeah. I don't think it makes sense to canonise PSI to 32 bits when we
>>> know it has fewer than 32 bits. It's still going to be wrong, and will
>>> still defeat one of the main purposes of canonical constan
Richard Biener writes:
>> Yeah. I don't think it makes sense to canonise PSI to 32 bits when we
>> know it has fewer than 32 bits. It's still going to be wrong, and will
>> still defeat one of the main purposes of canonical constants, which is
>> to make equality obvious. E.g. we'd still treat
On Fri, Sep 13, 2013 at 10:08 AM, Richard Sandiford
wrote:
> Richard Biener writes:
(what about partial integer modes which have weird precision (none)?)
>>>
>>> We don't really model that properly yet. Partial modes are just defined
>>> using something like:
>>>
>>> PARTIAL_INT_MODE (SI);
Richard Biener writes:
>>> (what about partial integer modes which have weird precision (none)?)
>>
>> We don't really model that properly yet. Partial modes are just defined
>> using something like:
>>
>> PARTIAL_INT_MODE (SI);
>>
>> i.e. without the partial precision. But trunc_int_for_mode is
On Thu, Sep 12, 2013 at 6:19 PM, Richard Sandiford
wrote:
> Richard Biener writes:
>> On Wed, Sep 11, 2013 at 8:39 PM, Richard Sandiford
>> wrote:
>>> Graham Stott writes:
Hi Richard,
There is some minor testsuite fallout with these patches on MIPS a
couple of tests (see bel
Richard Biener writes:
> On Wed, Sep 11, 2013 at 8:39 PM, Richard Sandiford
> wrote:
>> Graham Stott writes:
>>> Hi Richard,
>>>
>>> There is some minor testsuite fallout with these patches on MIPS a
>>> couple of tests (see below)ICE ingen_int_mode () in both these ICE the
>>> mode is CCmode.
>
Stott
Cc: James Greenhalgh ; "gcc-patches@gcc.gnu.org"
Sent: Wednesday, 11 September 2013, 19:39
Subject: Re: Using gen_int_mode instead of GEN_INT minot testsuite fallout on
MIPS
Graham Stott writes:
> Hi Richard,
>
> There is some minor testsuite fallout with these patches
On Wed, Sep 11, 2013 at 8:39 PM, Richard Sandiford
wrote:
> Graham Stott writes:
>> Hi Richard,
>>
>> There is some minor testsuite fallout with these patches on MIPS a
>> couple of tests (see below)ICE ingen_int_mode () in both these ICE the
>> mode is CCmode.
>
> Hmm, interesting. I suppose ge
Hi Richard,
Thanks I'll give a go tomorrow.
Not sure why it has only been seen/reported for MIPS so far
I can't see why it can't happen in other backends.
Cheers
Graham
Graham Stott writes:
> Hi Richard,
>
> There is some minor testsuite fallout with these patches on MIPS a
> couple of tests (see below)ICE ingen_int_mode () in both these ICE the
> mode is CCmode.
Hmm, interesting. I suppose gen_int_mode should handle CC modes,
since there's no other constant rt
Hi Richard,
There is some minor testsuite fallout with these patches on MIPS a
couple of tests (see below)ICE ingen_int_mode () in both these ICE the mode is
CCmode.
Here we arrive at gen_int_mode () via a use of plus_constant () is cse.c
with a register with CCmode called from find_reg_offset
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