On Sun, Oct 6, 2019 at 4:32 PM Richard Sandiford
wrote:
>
> Uros Bizjak writes:
> This caused:
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91994
> >>
> >> Thanks for reducing & tracking down the underlying cause.
> >>
> >>> This change doesn't work with -mzeroupper. When -mze
Uros Bizjak writes:
This caused:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91994
>>
>> Thanks for reducing & tracking down the underlying cause.
>>
>>> This change doesn't work with -mzeroupper. When -mzeroupper is used,
>>> upper bits of vector registers are clobbered upon call
>>> This caused:
>>>
>>> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91994
>
> Thanks for reducing & tracking down the underlying cause.
>
>> This change doesn't work with -mzeroupper. When -mzeroupper is used,
>> upper bits of vector registers are clobbered upon callee return if any
>> MM/ZMM re
"H.J. Lu" writes:
> On Fri, Oct 4, 2019 at 11:03 AM H.J. Lu wrote:
>>
>> On Wed, Sep 11, 2019 at 12:14 PM Richard Sandiford
>> wrote:
>> >
>> > lra_reg has an actual_call_used_reg_set field that is only used during
>> > inheritance. This in turn required a special lra_create_live_ranges
>> > pa
On Fri, Oct 4, 2019 at 11:03 AM H.J. Lu wrote:
>
> On Wed, Sep 11, 2019 at 12:14 PM Richard Sandiford
> wrote:
> >
> > lra_reg has an actual_call_used_reg_set field that is only used during
> > inheritance. This in turn required a special lra_create_live_ranges
> > pass for flag_ipa_ra to set up
On Wed, Sep 11, 2019 at 12:14 PM Richard Sandiford
wrote:
>
> lra_reg has an actual_call_used_reg_set field that is only used during
> inheritance. This in turn required a special lra_create_live_ranges
> pass for flag_ipa_ra to set up this field. This patch instead makes
> the inheritance code
On 9/11/19 1:14 PM, Richard Sandiford wrote:
> lra_reg has an actual_call_used_reg_set field that is only used during
> inheritance. This in turn required a special lra_create_live_ranges
> pass for flag_ipa_ra to set up this field. This patch instead makes
> the inheritance code do its own live
lra_reg has an actual_call_used_reg_set field that is only used during
inheritance. This in turn required a special lra_create_live_ranges
pass for flag_ipa_ra to set up this field. This patch instead makes
the inheritance code do its own live register tracking, using the
same ABI-mask-and-clobbe
