Am 14.02.2013 15:14, schrieb Michel Dänzer:
On Don, 2013-02-14 at 14:35 +0100, Michel Dänzer wrote:
On Don, 2013-02-14 at 11:43 +0100, Christian König wrote:
+ // Only one literal allowed
+ break;
The same literal could be used for several operands though. :)
Basically, it seems like we're pretty close to allowing VSrc for all
VOP* source operands, and doing something like the following
pseudo-code:
for (each VSrc operand) {
if (can be encoded as inline constant)
use inline constant;
if (is immediate &&
(no literal or SGPR yet || value matches literal))
use literal;
if (is VGPR || (is SGPR && no SGPR or literal yet))
use operand directly;
copy immediate/SGPR to VGPR and use the latter;
}
And the corresponding simpler logic for SSrc. But I'm not sure if all of
that can be done in this function.
Yeah, I'm already nearly there (and it also includes folding
ABS/NEG/CLAMP/OMOD). But first things first, I encountered some hangs
with the current code and those need to be fixed first.
Christian.
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