On Wed, Aug 25, 2021 at 8:36 AM H.J. Lu wrote:
> On Mon, Aug 23, 2021 at 10:55 PM John McCall wrote:
> > On Thu, Jul 29, 2021 at 9:40 AM H.J. Lu wrote:
> >> On Tue, Jul 13, 2021 at 9:24 AM H.J. Lu wrote:
> >> > On Tue, Jul 13, 2021 at 8:41 AM Joseph Myers
> wrote:
> >> > > On Tue, 13 Jul 2021
On Mon, Aug 23, 2021 at 10:55 PM John McCall wrote:
>
> On Thu, Jul 29, 2021 at 9:40 AM H.J. Lu wrote:
>>
>> On Tue, Jul 13, 2021 at 9:24 AM H.J. Lu wrote:
>> >
>> > On Tue, Jul 13, 2021 at 8:41 AM Joseph Myers
>> > wrote:
>> > >
>> > > On Tue, 13 Jul 2021, H.J. Lu wrote:
>> > >
>> > > > On Mo
On Thu, Jul 29, 2021 at 9:40 AM H.J. Lu wrote:
> On Tue, Jul 13, 2021 at 9:24 AM H.J. Lu wrote:
> >
> > On Tue, Jul 13, 2021 at 8:41 AM Joseph Myers
> wrote:
> > >
> > > On Tue, 13 Jul 2021, H.J. Lu wrote:
> > >
> > > > On Mon, Jul 12, 2021 at 8:59 PM Wang, Pengfei <
> pengfei.w...@intel.com> w
atch with the fixes. I also updated the PDF file.
Here is the final patch I checked in. _Complex _Float16 is changed to return
in XMM0 register. The new PDF file is at
https://gitlab.com/x86-psABIs/i386-ABI/-/wikis/Intel386-psABI
--
H.J.
From 4ce1007486d28b13da36bbf216b2e470818d7ee1 Mo
On Tue, Jul 13, 2021 at 8:41 AM Joseph Myers wrote:
>
> On Tue, 13 Jul 2021, H.J. Lu wrote:
>
> > On Mon, Jul 12, 2021 at 8:59 PM Wang, Pengfei
> > wrote:
> > >
> > > > Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
> > >
> > > Can you please explain the behavior here? Is
On Tue, 13 Jul 2021, H.J. Lu wrote:
> On Mon, Jul 12, 2021 at 8:59 PM Wang, Pengfei wrote:
> >
> > > Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
> >
> > Can you please explain the behavior here? Is there difference between
> > _Float16 and _Complex _Float16 when return
om: llvm-dev On Behalf Of H.J. Lu
> > via llvm-dev
> > Sent: Friday, July 2, 2021 6:28 AM
> > To: Joseph Myers
> > Cc: llvm-...@lists.llvm.org; GCC Patches ;
> > GNU C Library ; IA32 System V Application
> > Binary Interface
> > Subject: Re: [llvm-
m-dev] [PATCH] Add optional _Float16 support
On Mon, Jul 12, 2021 at 8:59 PM Wang, Pengfei wrote:
>
> > Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
>
> Can you please explain the behavior here? Is there difference between
> _Float16 and _Complex _Float16 w
2 System V Application Binary
> Interface
> Subject: Re: [llvm-dev] [PATCH] Add optional _Float16 support
>
> On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers wrote:
> >
> > On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
> >
> > > 2. Return _Float16 and _Comple
U C
Library ; IA32 System V Application Binary Interface
Subject: Re: [llvm-dev] [PATCH] Add optional _Float16 support
On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers wrote:
>
> On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
>
> > 2. Return _Float16 and _Complex _Float16 val
On Fri, Jul 02, 2021 at 09:45:46AM +0200, Richard Biener via Gcc-patches wrote:
> > > > are? (If it is restricted to SSE, we can of course ensure relevant
> > > libgcc
> > > > functions are built with SSE enabled, and likewise in glibc if that
> > > > gains
> > > > _Float16 functions, though mayb
On Fri, Jul 2, 2021 at 3:46 PM Richard Biener via llvm-dev
wrote:
>
> On Fri, Jul 2, 2021 at 1:34 AM Jacob Lifshay via Gcc-patches
> wrote:
> >
> > On Thu, Jul 1, 2021, 15:28 H.J. Lu via llvm-dev
> > wrote:
> >
> > > On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers
> > > wrote:
> > > >
> > > > On Th
On Fri, Jul 2, 2021 at 1:34 AM Jacob Lifshay via Gcc-patches
wrote:
>
> On Thu, Jul 1, 2021, 15:28 H.J. Lu via llvm-dev
> wrote:
>
> > On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers
> > wrote:
> > >
> > > On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
> > >
> > > > 2. Return _Float16 and _Compl
On Thu, Jul 1, 2021, 15:28 H.J. Lu via llvm-dev
wrote:
> On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers
> wrote:
> >
> > On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
> >
> > > 2. Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1
> registers.
> >
> > That restricts use of _Float16 to
On Thu, Jul 1, 2021 at 4:02 PM H.J. Lu via llvm-dev
wrote:
> On Thu, Jul 1, 2021 at 3:40 PM Joseph Myers
> wrote:
> >
> > On Thu, 1 Jul 2021, H.J. Lu wrote:
> >
> > > BTW, _Float16 software emulation may require more than just SSE
> > > since we need to do _Float16 load and store with XMM regist
On Thu, Jul 1, 2021 at 3:40 PM Joseph Myers wrote:
>
> On Thu, 1 Jul 2021, H.J. Lu wrote:
>
> > BTW, _Float16 software emulation may require more than just SSE
> > since we need to do _Float16 load and store with XMM registers.
> > There is no 16bit load/store for XMM registers without AVX512FP16.
On Thu, 1 Jul 2021, H.J. Lu wrote:
> BTW, _Float16 software emulation may require more than just SSE
> since we need to do _Float16 load and store with XMM registers.
> There is no 16bit load/store for XMM registers without AVX512FP16.
You should be able to make the move go via general-purpose re
On Thu, Jul 1, 2021 at 3:10 PM Joseph Myers wrote:
>
> On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
>
> > 2. Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
>
> That restricts use of _Float16 to processors with SSE. Is that what we
> want in the ABI, or should _Float1
On Thu, 1 Jul 2021, H.J. Lu via Gcc-patches wrote:
> 2. Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
That restricts use of _Float16 to processors with SSE. Is that what we
want in the ABI, or should _Float16 be available with base 32-bit x86
architecture features only
1. Pass _Float16 and _Complex _Float16 values on stack.
2. Return _Float16 and _Complex _Float16 values in %xmm0/%xmm1 registers.
---
low-level-sys-info.tex | 57 +-
1 file changed, 40 insertions(+), 17 deletions(-)
diff --git a/low-level-sys-info.tex b/low
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