Date: Sun, 11 Apr 2010 20:10:04 GMT From: dfilter@FreeBSD.ORG (dfilter service) To: freebsd-sparc64@FreeBSD.org Subject: Re: sparc64/144900: commit references a PR Message-ID: <201004112010.o3BKA4Xl024023@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR sparc64/144900; it has been noted by GNATS. From: dfilter@FreeBSD.ORG (dfilter service) To: bug-followup@FreeBSD.org Cc: Subject: Re: sparc64/144900: commit references a PR Date: Sun, 11 Apr 2010 20:09:15 +0000 (UTC) Author: marius Date: Sun Apr 11 20:08:54 2010 New Revision: 206490 URL: http://svn.freebsd.org/changeset/base/206490 Log: While SPARC V9 allows tininess to be detected either before or after rounding (impl. dep. #55), the SPARC JPS1 responsible for SPARC64 and UltraSPARC processors defines that in all cases tininess is detected before rounding therefore rounding up to the smallest normalized number should set the underflow flag. This change is needed for using SoftFloat on sparc64 for reference purposes. PR: 144900 Submitted by: Peter Jeremy Modified: head/lib/libc/softfloat/softfloat-specialize Modified: head/lib/libc/softfloat/softfloat-specialize ============================================================================== --- head/lib/libc/softfloat/softfloat-specialize Sun Apr 11 19:58:01 2010 (r206489) +++ head/lib/libc/softfloat/softfloat-specialize Sun Apr 11 20:08:54 2010 (r206490) @@ -44,6 +44,9 @@ Underflow tininess-detection mode, stati #ifdef SOFTFLOAT_FOR_GCC static #endif +#ifdef __sparc64__ +int8 float_detect_tininess = float_tininess_before_rounding; +#else int8 float_detect_tininess = float_tininess_after_rounding; /* _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201004112010.o3BKA4Xl024023>