conditional move
Frost, Gary
Gary.Frost at amd.com
Fri May 24 08:17:47 PDT 2013
Presumably, ternaries are good candidates for this.
boolean isOdd(int i){
boolean odd=((i%2)!=0)?0:1;
return odd;
}
-----Original Message-----
From: graal-dev-bounces at openjdk.java.net [mailto:graal-dev-bounces at openjdk.java.net] On Behalf Of Lukas Stadler
Sent: Friday, May 24, 2013 3:51 AM
To: Deneau, Tom
Cc: graal-dev at openjdk.java.net
Subject: Re: conditional move
The ConditionalNode is most of the time not created by the GraphBuilder directly, but it will appear later when a simple if/then/else is canonicalized.
So a simple snippet that boils down to a conditional move could look like this:
public static int testSnippet(int i) {
if (i == 0) {
return 1;
} else {
return 2;
}
}
- Lukas
On May 24, 2013, at 1:04 AM, "Deneau, Tom" <tom.deneau at amd.com> wrote:
> While compiling a larger chunk of code we were handed a
> ConditionalMove node (which we have not implemented yet). I would
> like to make a smaller test case for this but java patterns that I
> thought would be mapping to conditional move aren't doing so. What
> would be a typical small test case for generating the ConditionalMove node?
>
> -- Tom Deneau
>
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