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authorEric Anholt <[email protected]>2012-02-23 11:51:04 -0800
committerEric Anholt <[email protected]>2012-05-17 10:05:23 -0700
commit05c200bac049ed4760f0af6786e463e2520b9c9c (patch)
tree3628b7cc2b72e515027218f05c8dec523f9e0b40 /doxygen/header.html
parentf220f73b9c5aca16ca21ea8bbbbf8718703b12cf (diff)
glsl: Improve the local dead code optimization to eliminate unused channels.
Total instructions: 261582 -> 261316 135/2147 programs affected (6.3%) 36752 -> 36486 instructions in affected programs (0.7% reduction) This excludes a tropics shader that now gets 16-wide mode and throws off the numbers. 5 shaders are hurt: two extra MOVs in 4 tropics shaders it looks like because we don't split register names according to independent webs, and one gstreamer shader where it looks like try_rewrite_rhs_to_dst() is falling on its face. This should also help avoid a regression in VSes from idr's ARB programs to GLSL work.
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