* Does -mfpmath=sse include SSE2?
@ 2002-12-30 10:04 Scott Robert Ladd
2002-12-30 10:21 ` R. Kelley Cook
0 siblings, 1 reply; 3+ messages in thread
From: Scott Robert Ladd @ 2002-12-30 10:04 UTC (permalink / raw)
To: gcc List
On a Pentium 4 system, does the switch -mfpmath=sse cause the compiler to
generate code using SSE2 instructions for calculations involving doubles?
Note: I've also specified -march=pentium4 -mcpu=pentium4.
..Scott
--
Scott Robert Ladd
Coyote Gulch Productions, http://www.coyotegulch.com
No ads -- just very free (and somewhat unusual) code.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Does -mfpmath=sse include SSE2?
2002-12-30 10:04 Does -mfpmath=sse include SSE2? Scott Robert Ladd
@ 2002-12-30 10:21 ` R. Kelley Cook
2002-12-30 11:30 ` Scott Robert Ladd
0 siblings, 1 reply; 3+ messages in thread
From: R. Kelley Cook @ 2002-12-30 10:21 UTC (permalink / raw)
To: Scott Robert Ladd, gcc
> On a Pentium 4 system, does the switch -mfpmath=sse cause the
compiler > to generate code using SSE2 instructions for calculations
involving
> doubles?
>
> Note: I've also specified -march=pentium4 -mcpu=pentium4.
Yes.
BTW, feel free to send patches for clearer documentation. The docs on
some of the new options are a bit muddled.
Kelley Cook
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: Does -mfpmath=sse include SSE2?
2002-12-30 10:21 ` R. Kelley Cook
@ 2002-12-30 11:30 ` Scott Robert Ladd
0 siblings, 0 replies; 3+ messages in thread
From: Scott Robert Ladd @ 2002-12-30 11:30 UTC (permalink / raw)
To: R. Kelley Cook, gcc
> From: gcc-owner@gcc.gnu.org [mailto:gcc-owner@gcc.gnu.org]On Behalf Of
> R. Kelley Cook
>
> Yes.
I'd hoped it did.
When time permits, I'm testing a variety of options in combinations, trying
to figure out what affects what (so to speak ;).
> BTW, feel free to send patches for clearer documentation. The docs on
> some of the new options are a bit muddled.
When I have a clear idea about the various options and their interactions,
I'm going to write up an article for my web site -- and I'll also submit a
patch for the docs to reflect what I'm finding out. I've learnjed a lot of
bits and pieces over the last few months; I might as well pass it along.
..Scott
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-12-30 10:04 Does -mfpmath=sse include SSE2? Scott Robert Ladd
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2002-12-30 11:30 ` Scott Robert Ladd
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