I found it with the lldb test suite. I also checked the value Mac and Linux initialised the register to & found it to be zero.
Andrew > On 14 Sep 2021, at 14:42, Ronald Klop <[email protected]> wrote: > > Hi, > > Do you have an example of this software? Just for my understanding. > > Ronald. > > Van: Andrew Turner <[email protected]> > Datum: dinsdag, 14 september 2021 14:53 > Aan: [email protected], [email protected], > [email protected] > Onderwerp: git: fd860ace3bde - main - Remove the DN flag from the initial > arm64 fpcr value > > The branch main has been updated by andrew: > > URL: > https://cgit.FreeBSD.org/src/commit/?id=fd860ace3bded96bee0e5c090a5a4d8b085b700c > > <https://cgit.freebsd.org/src/commit/?id=fd860ace3bded96bee0e5c090a5a4d8b085b700c> > > commit fd860ace3bded96bee0e5c090a5a4d8b085b700c > Author: Andrew Turner <[email protected]> > AuthorDate: 2021-08-25 10:05:55 +0000 > Commit: Andrew Turner <[email protected]> > CommitDate: 2021-09-14 12:52:48 +0000 > > Remove the DN flag from the initial arm64 fpcr value > > This fixes software that expects NaN values to propagate. > > Sponsored by: The FreeBSD Foundation > --- > sys/arm64/include/vfp.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/sys/arm64/include/vfp.h b/sys/arm64/include/vfp.h > index 629b1b7fadf4..bee0121d9d2a 100644 > --- a/sys/arm64/include/vfp.h > +++ b/sys/arm64/include/vfp.h > @@ -35,7 +35,7 @@ > #define VFPCR_AHP (0x04000000) /* alt. half-precision: */ > #define VFPCR_DN (0x02000000) /* default NaN enable */ > #define VFPCR_FZ (0x01000000) /* flush to zero enabled */ > -#define VFPCR_INIT VFPCR_DN /* Default fpcr after exec */ > +#define VFPCR_INIT 0 /* Default fpcr after exec */ > > #define VFPCR_RMODE_OFF 22 /* rounding mode offset */ > #define VFPCR_RMODE_MASK (0x00c00000) /* rounding mode mask */ > _______________________________________________ > [email protected] mailing list > https://lists.freebsd.org/mailman/listinfo/dev-commits-src-all > <https://lists.freebsd.org/mailman/listinfo/dev-commits-src-all> > To unsubscribe, send any mail to "[email protected]" _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-all To unsubscribe, send any mail to "[email protected]"
