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| author | Eric Anholt <eric@anholt.net> | 2010-10-02 22:57:17 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2012-04-11 18:08:21 -0700 |
| commit | 60177d5e2aec07ed6386a6935b118a356d58c4ec (patch) | |
| tree | a013f97449bccc118aaa9ee42abc01fc22e11e6a /src/glsl/ir_optimization.h | |
| parent | fda662f4dffa658d28ea739dd236fe0350828d59 (diff) | |
| download | external_mesa3d-60177d5e2aec07ed6386a6935b118a356d58c4ec.zip external_mesa3d-60177d5e2aec07ed6386a6935b118a356d58c4ec.tar.gz external_mesa3d-60177d5e2aec07ed6386a6935b118a356d58c4ec.tar.bz2 | |
glsl: Add an array splitting pass.
I've had this code laying around almost done for a long time. The
idea is like opt_structure_splitting, that we've got a bunch of
transforms at the GLSL IR level that only understand scalars and
vectors, which just skip complicated dereferences. While driver
backends may manage some optimization after they split matrices up
themselves, it would be better to bring all of our optimization to
bear on the problem.
While I wasn't expecting changes quite yet, a few programs end up
winning: a gstreamer convolution shader, and the Humus dynamic
branching demo:
Total instructions: 269430 -> 269342
3/2148 programs affected (0.1%)
1498 -> 1410 instructions in affected programs (5.9% reduction)
Diffstat (limited to 'src/glsl/ir_optimization.h')
| -rw-r--r-- | src/glsl/ir_optimization.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h index 085b969..3567835 100644 --- a/src/glsl/ir_optimization.h +++ b/src/glsl/ir_optimization.h @@ -74,6 +74,7 @@ bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz); bool lower_clip_distance(exec_list *instructions); void lower_output_reads(exec_list *instructions); bool optimize_redundant_jumps(exec_list *instructions); +bool optimize_split_arrays(exec_list *instructions, bool linked); ir_rvalue * compare_index_block(exec_list *instructions, ir_variable *index, |