This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math

From: Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>
To: Richard Guenther <rguenther at suse dot de>
Cc: gcc-patches at gcc dot gnu dot org
Date: Thu, 19 Oct 2006 09:37:08 +0200
Subject: Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
References: <Pine.LNX.4.64.0610181606580.8942@zhemvz.fhfr.qr> <EEA92755-FDBD-4FF8-AAAB-ACBB9461A6F7@adacore.com> <Pine.LNX.4.64.0610181714060.8942@zhemvz.fhfr.qr> <219C12D7-DF7B-485F-BABF-68994D87B2CD@adacore.com> <17718.20959.7821.986853@zebedee.pink> <Pine.LNX.4.64.0610181818450.8942@zhemvz.fhfr.qr>

which would be fine (as we can restrict the inline expansion to
-fno-rounding-math then, which is the default).  Now on to a way
to tell real.c to do nextafter (0.5, 0.0) ...

(1 - eps) / 2 will do.

Paolo

References:
- [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Richard Guenther
- Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Geert Bosch
- Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Richard Guenther
- Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Geert Bosch
- Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Andrew Haley
- Re: [PATCH][4.3] Expand lround inline for x86_64/i?86 SSE math
  - From: Richard Guenther

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]