* gcc 3.4 and -O4/-O5
@ 2003-11-23 20:21 Jack Howarth
2003-11-24 14:42 ` Gerald Pfeifer
0 siblings, 1 reply; 2+ messages in thread
From: Jack Howarth @ 2003-11-23 20:21 UTC (permalink / raw)
To: gcc
Does anyone know what the status is of optimizations
above -O3 in gcc 3.4? Are there really any done at
-O4 or -O5? Also since I am using mainly g77 at the moment
I guess they would have to be in the backend of the
compiler to have any effect. Thanks in advance for any
information.
Jack
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: gcc 3.4 and -O4/-O5
2003-11-23 20:21 gcc 3.4 and -O4/-O5 Jack Howarth
@ 2003-11-24 14:42 ` Gerald Pfeifer
0 siblings, 0 replies; 2+ messages in thread
From: Gerald Pfeifer @ 2003-11-24 14:42 UTC (permalink / raw)
To: Jack Howarth; +Cc: gcc
On Sun, 23 Nov 2003, Jack Howarth wrote:
> Does anyone know what the status is of optimizations
> above -O3 in gcc 3.4? Are there really any done at -O4 or -O5?
-On, for n > 3 is just another way of writing -O3.
Gerald
^ permalink raw reply [flat|nested] 2+ messages in thread
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