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Re: Support for malign-double?
- Subject: Re: Support for malign-double?
- From: Toshiyuki Nakata <nakata at ccm dot cl dot nec dot co dot jp>
- Date: Wed, 09 Sep 1998 19:23:20 +0900
- Cc: gnu-win32 at cygnus dot com
- Cc: nakata at ccm dot cl dot nec dot co dot jp
- Reply-To: Toshiyuki Nakata <nakata at ccm dot cl dot nec dot co dot jp>
Hello:
I had written:
; ; I have one question on performance related issue.
; ;
; ; Do you support -malign-double in mingwin-32 and gnuwin-32 (egcs-1.0.2)?
; ;
;
; ; The reason is that I have been comparing the performance of a user's
; ; application on linux and Winnt and the interesting thing to note is that
; ;
; ; They are comparable for integer performance but linux performance is
; ; about 20% better for floating point intensive application.
;
; Sorry, it seems that this has been fixed for the egcs1.0.2 for gnuwin32 b19
; but not for egcs1.0.2 on ming32.
;
With the newest version of egcs1.1.0 released quite recently by Mumit
(Thank you very much Mumit), common blocks are aligned on an 8byte
boundary for Mingw32 as well.
I got a 20% performance gain on some floating point programs.
Best Regards
Toshiyuki Nakata
-
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