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authorEric Anholt <[email protected]>2010-07-26 23:56:19 -0700
committerEric Anholt <[email protected]>2010-08-09 21:42:17 -0700
commit0ff3b2b344b21ae4a7b62ebba22d7358755c8dfe (patch)
tree1b6ff550d9d51fa39837dcab502a1bafb27e5639 /include
parent5854d4583c6e8885185e12a0636f77489a62e24c (diff)
glsl2: Make ir_algebraic reassociate add/mul operands for constant folding.
It's rather easy to produce two constant multiplies separated by other multiplies while writing a BRDF shader, and non-obvious enough in the resulting codegen that I didn't catch it in my demo code until just recently. Cuts 3 965 instructions from my demo (<1%), and 20 from glsl-fs-raytrace (1.3%).
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