On Mon, 25 Mar 2019 at 14:32, Steve Kargl
wrote:
>
> This is now
>
> https://bugs.llvm.org/show_bug.cgi?id=41224
Thanks for submitting a bug report to LLVM, I hope it gets some traction.
___
freebsd-toolchain@freebsd.org mailing list
On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
> All,
>
> There seems to an optimization bug with clang on
>
> % uname -a
> FreeBSD mobile 13.0-CURRENT FreeBSD 13.0-CURRENT r344653 MOBILE i386
>
> IOW, if you do numerica work on i386, you may want to check your
> results.
This
On 3/14/19 1:08 PM, Steve Kargl wrote:
> On Fri, Mar 15, 2019 at 05:50:37AM +1100, Peter Jeremy wrote:
>> On 2019-Mar-13 23:30:07 -0700, Steve Kargl
>> wrote:
>>> AFAICT, all libm float routines need to be modified to conditional
>>> include ieeefp.h and call fpsetprec(FP_PD). This will work
On Thu, Mar 14, 2019 at 12:59:14PM -0700, John Baldwin wrote:
> On 3/14/19 12:20 PM, Konstantin Belousov wrote:
> > On Fri, Mar 15, 2019 at 05:50:37AM +1100, Peter Jeremy wrote:
> >> On 2019-Mar-13 23:30:07 -0700, Steve Kargl
> >> wrote:
> >>> AFAICT, all libm float routines need to be modified
On Fri, Mar 15, 2019 at 05:50:37AM +1100, Peter Jeremy wrote:
> On 2019-Mar-13 23:30:07 -0700, Steve Kargl
> wrote:
> >AFAICT, all libm float routines need to be modified to conditional
> >include ieeefp.h and call fpsetprec(FP_PD). This will work around
> >issues is FP and libm. FreeBSD needs
On 3/14/19 12:20 PM, Konstantin Belousov wrote:
> On Fri, Mar 15, 2019 at 05:50:37AM +1100, Peter Jeremy wrote:
>> On 2019-Mar-13 23:30:07 -0700, Steve Kargl
>> wrote:
>>> AFAICT, all libm float routines need to be modified to conditional
>>> include ieeefp.h and call fpsetprec(FP_PD). This
On Fri, Mar 15, 2019 at 05:50:37AM +1100, Peter Jeremy wrote:
> On 2019-Mar-13 23:30:07 -0700, Steve Kargl
> wrote:
> >AFAICT, all libm float routines need to be modified to conditional
> >include ieeefp.h and call fpsetprec(FP_PD). This will work around
> >issues is FP and libm. FreeBSD needs
On 2019-Mar-13 23:30:07 -0700, Steve Kargl
wrote:
>AFAICT, all libm float routines need to be modified to conditional
>include ieeefp.h and call fpsetprec(FP_PD). This will work around
>issues is FP and libm. FreeBSD needs to issue an erratum about
>the numerical issues with clang.
I vaguely
On Wed, Mar 13, 2019 at 11:30:07PM -0700, Steve Kargl wrote:
>
> Spent a couple hours wandering in contrib/llvm. Have no idea
> how to fix clang to actually work on i386/387. Any ideas
> would be welcomed.
>
> AFAICT, all libm float routines need to be modified to conditional
> include
On Wed, Mar 13, 2019 at 02:24:55PM -0700, Steve Kargl wrote:
> On Wed, Mar 13, 2019 at 10:16:12AM -0700, John Baldwin wrote:
> > On 3/13/19 9:40 AM, Steve Kargl wrote:
> > > On Wed, Mar 13, 2019 at 09:32:57AM -0700, John Baldwin wrote:
> > >> On 3/13/19 8:16 AM, Steve Kargl wrote:
> > >>> On Tue,
On Wed, Mar 13, 2019 at 10:16:12AM -0700, John Baldwin wrote:
> On 3/13/19 9:40 AM, Steve Kargl wrote:
> > On Wed, Mar 13, 2019 at 09:32:57AM -0700, John Baldwin wrote:
> >> On 3/13/19 8:16 AM, Steve Kargl wrote:
> >>> On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
>
> gcc8
Hi John,
On Wed, Mar 13, 2019 at 10:17 AM John Baldwin wrote:
> One issue I'm aware of is that clang does not have any support for the
> special arrangement FreeBSD/i386 uses where it uses different precision
> for registers vs in-memory for some of the floating point types (GCC has
> a special
On 3/13/19 9:40 AM, Steve Kargl wrote:
> On Wed, Mar 13, 2019 at 09:32:57AM -0700, John Baldwin wrote:
>> On 3/13/19 8:16 AM, Steve Kargl wrote:
>>> On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
gcc8 --version
gcc8 (FreeBSD Ports Collection) 8.3.0
gcc8
On Wed, Mar 13, 2019 at 09:32:57AM -0700, John Baldwin wrote:
> On 3/13/19 8:16 AM, Steve Kargl wrote:
> > On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
> >>
> >> gcc8 --version
> >> gcc8 (FreeBSD Ports Collection) 8.3.0
> >>
> >> gcc8 -fno-builtin -o z a.c -lm && ./z
> >> gcc8 -O
On 3/13/19 8:16 AM, Steve Kargl wrote:
> On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
>>
>> gcc8 --version
>> gcc8 (FreeBSD Ports Collection) 8.3.0
>>
>> gcc8 -fno-builtin -o z a.c -lm && ./z
>> gcc8 -O -fno-builtin -o z a.c -lm && ./z
>> gcc8 -O2 -fno-builtin -o z a.c -lm && ./z
On Wed, Mar 13, 2019 at 04:56:26PM +0100, Hans Petter Selasky wrote:
> On 3/13/19 4:50 PM, Steve Kargl wrote:
> > Using sin() and cos() directly as in
> >
> > /* Double precision csinh() without using C's double complex.s */
> > void
> > dp_csinh(double x, double y, double *re, double *im)
> > {
On 3/13/19 4:50 PM, Steve Kargl wrote:
Using sin() and cos() directly as in
/* Double precision csinh() without using C's double complex.s */
void
dp_csinh(double x, double y, double *re, double *im)
{
double c, s;
*re = sinh(x) * cos(y);
*im = cosh(x) * sin(y);
}
does not change
On Wed, Mar 13, 2019 at 04:41:51PM +0100, Hans Petter Selasky wrote:
> On 3/13/19 4:16 PM, Steve Kargl wrote:
> > On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
> >>
> >> gcc8 --version
> >> gcc8 (FreeBSD Ports Collection) 8.3.0
> >>
> >> gcc8 -fno-builtin -o z a.c -lm && ./z
> >>
On 3/13/19 4:16 PM, Steve Kargl wrote:
On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
gcc8 --version
gcc8 (FreeBSD Ports Collection) 8.3.0
gcc8 -fno-builtin -o z a.c -lm && ./z
gcc8 -O -fno-builtin -o z a.c -lm && ./z
gcc8 -O2 -fno-builtin -o z a.c -lm && ./z
gcc8 -O3
On Tue, Mar 12, 2019 at 07:45:41PM -0700, Steve Kargl wrote:
> All,
>
> There seems to an optimization bug with clang on
>
> % uname -a
> FreeBSD mobile 13.0-CURRENT FreeBSD 13.0-CURRENT r344653 MOBILE i386
>
> IOW, if you do numerica work on i386, you may want to check your
> results.
>
>
All,
There seems to an optimization bug with clang on
% uname -a
FreeBSD mobile 13.0-CURRENT FreeBSD 13.0-CURRENT r344653 MOBILE i386
IOW, if you do numerica work on i386, you may want to check your
results.
The program demonstrating the issue is at the end of this email.
gcc8 --version
gcc8
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