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	Commit message (Collapse)	Author	Age	Files	Lines
*	glsl/opt_cpe: Fix a crash when a kill kills for two reasons.	Eric Anholt	2011-04-13	1	-1/+3
\| \| \| \| \| \| \|	Fixes glsl-copy-propagation-loop-2 when this optimization pass is re-enabled. Reported-by: David Lamparter <[email protected]>
*	glsl/opt_cpe: Kill when the assignment isn't something we recognize.	Eric Anholt	2011-04-13	1	-2/+9
\| \| \| \| \| \| \| \| \|	A few GLES2 tests tripped over this when using array dereferences to hit channels on the LHS (see piglit test glsl-copy-propagation-vector-indexing). We wouldn't find the ir_dereference_variable, and assume that that meant that it wasn't an assignment to a scalar/vector, and thus not notice that the variable had been changed.
*	glsl: Remove extra checks for constant true assignment conditions.	Eric Anholt	2011-02-04	1	-5/+2
\| \| \| \|	These are already stripped by opt_constant_folding.cpp.
*	glsl: Add a new opt_copy_propagation variant that does it channel-wise.	Eric Anholt	2011-02-04	1	-0/+461
	This patch cleans up many of the extra copies in GLSL IR introduced by i965's scalarizing passes. It doesn't result in a statistically significant performance difference on nexuiz high settings (n=3) or my demo (n=10), due to brw_fs.cpp's register coalescing covering most of those extra moves anyway. However, it does make the debug of wine's GLSL shaders much more tractable, and reduces instruction count of glsl-fs-convolution-2 from 376 to 288.