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3 commits

Author SHA1 Message Date
Eric Anholt
f8d2cfe4a6 glsl2: Handle plain variable copies in struct splitting. 
glsl-fs-raytrace goes from 620 Mesa IR instructions out of the
compiler to 585.
 2010-08-08 23:45:58 -07:00
Eric Anholt
0a0ab121f8 ir_structure_splitting: Massive fixing to this. 
I'd missed putting in the actual "find structures to split" part, so
most of the code didn't do anything.  I was running on too large of an
app and assuming the lack of progress was elsewhere.
 2010-08-05 13:40:09 -07:00
Eric Anholt
7f7eaf0285 ir_structure_splitting: New pass to chop structures into their components. 
This doesn't do anything if your structure goes through an uninlined
function call or if whole-structure assignment occurs.  As such, the
impact is limited, at least until we do some global copy propagation
to reduce whole-structure assignment.
 2010-08-05 12:56:03 -07:00