In my code:
int a = 10;
then in the program I won't use the variable of a, but the open64 will
eliminate the statement of a = 10. I have tried the option of :
-WOPT:dse=off:dce=off:dce_alias=off:dce_global=off:dce_branch=off:bdce=off:epre=off:ivar_pre=off:lpre=off
-IPA:dve=off:fold_cvt=off.
but it does not work, any suggestions ?
----- Original Message -----
From: eirc.lew
To: Fred Chow ; open64-devel@lists.sourceforge.net
Sent: Friday, August 20, 2010 10:01 AM
Subject: Re: [Open64-devel] How can I filter the constant propagation
optimization in open64
Hi, all
Is there a document of command options about opt and LNO, now I have one
from AMD, but it did not have all the options, for example, there is no
-WOPT:icopy=off:copy=off in this document!
Eric
----- Original Message -----
From: Fred Chow
To: open64-devel@lists.sourceforge.net
Sent: Tuesday, August 17, 2010 6:02 PM
Subject: Re: [Open64-devel] How can I filter the constant propagation
optimization in open64
Just add the flags -WOPT:icopy=off:copy=off to turn off copy propagation.
Fred
On 08/17/2010 12:39 AM, eirc.lew wrote:
Hi, all
for example:
int a;
int c;
a = 5;
int b;
b += a + c;
after open64 has compiled, in the whirl it is: b += 5 + c;
but what I want is: it is still b + = a + c;
any suggestions ?
Eric
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