On Tue, Dec 15, 2015 at 12:06 AM, Steve Ellcey wrote:
> On Mon, 2015-12-14 at 09:57 +0100, Richard Biener wrote:
>
>> I don't know enough to assess the effect of this but
>>
>> 1) not all archs can do auto-incdec so either the comment is misleading
>> or the test should probably be amended
>> 2)
On Mon, 2015-12-14 at 09:57 +0100, Richard Biener wrote:
> I don't know enough to assess the effect of this but
>
> 1) not all archs can do auto-incdec so either the comment is misleading
> or the test should probably be amended
> 2) I wonder why with the comment ("during the loop") you exclude
On Sat, Dec 12, 2015 at 12:48 AM, Steve Ellcey wrote:
> On Wed, 2015-12-09 at 11:24 +0100, Richard Biener wrote:
>
>> > This second case (without the preference for the original IV)
>> > generates better code on MIPS because the final assembly
>> > has the increment instructions between the loads
On Wed, 2015-12-09 at 11:24 +0100, Richard Biener wrote:
> > This second case (without the preference for the original IV)
> > generates better code on MIPS because the final assembly
> > has the increment instructions between the loads and the tests
> > of the values being loaded and so there is
On Tue, Dec 8, 2015 at 7:56 PM, Steve Ellcey wrote:
> I have an ivopts optimization question/proposal. When compiling the
> attached program the ivopts pass prefers the original ivs over new ivs
> and that causes us to generate less efficient code on MIPS. It may
> affect other platforms too.
>
