diff options
| author | Matt Turner <[email protected]> | 2015-09-23 12:44:44 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2015-10-05 14:31:26 -0700 |
| commit | 617eb5e6c3058730c118b9178b50f2ab82f6932d (patch) | |
| tree | 535261b50e23084c9b2ab496afb8dfc1a98474d3 /src/glsl/ir_optimization.h | |
| parent | 5a360dcad1fdb91f9129cb21775b9af60cbf57e4 (diff) | |
glsl: Remove CSE pass.
With NIR, it actually hurts things.
total instructions in shared programs: 6529329 -> 6528888 (-0.01%)
instructions in affected programs: 14833 -> 14392 (-2.97%)
helped: 299
HURT: 1
In all affected programs I inspected (including the single hurt one) the
pass CSE'd some multiplies and caused some reassociation (e.g., caused
(A * B) * C to be A * (B * C)) when the original intermediate result was
reused elsewhere.
Acked-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/glsl/ir_optimization.h')
| -rw-r--r-- | src/glsl/ir_optimization.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h index 265b2234cb6..ce5c4929bfb 100644 --- a/src/glsl/ir_optimization.h +++ b/src/glsl/ir_optimization.h @@ -87,7 +87,6 @@ bool do_constant_variable_unlinked(exec_list *instructions); bool do_copy_propagation(exec_list *instructions); bool do_copy_propagation_elements(exec_list *instructions); bool do_constant_propagation(exec_list *instructions); -bool do_cse(exec_list *instructions); void do_dead_builtin_varyings(struct gl_context *ctx, gl_shader *producer, gl_shader *consumer, unsigned num_tfeedback_decls, |