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| author | Marek Olšák <maraeo@gmail.com> | 2013-06-12 13:23:48 +0200 |
|---|---|---|
| committer | Marek Olšák <maraeo@gmail.com> | 2013-07-02 17:02:14 +0200 |
| commit | b3d8b4c0b423539f17c13713673cfeb6d66ff7ed (patch) | |
| tree | 58ea816c6292ff40f5b820a1bdc2398b78708ebd /src/glsl/ir_optimization.h | |
| parent | 3c555827c3e2fdb84ee4b4b8fd8296985cbb1fda (diff) | |
glsl/linker: eliminate unused and set-but-unused built-in varyings
This eliminates built-in varyings such as gl_Color, gl_SecondaryColor,
gl_TexCoord, and gl_FogFragCoord if they are unused by the next stage or
not written at all (e.g. gl_TexCoord elements). The gl_TexCoord array is
broken down into separate vec4s if needed.
v2: - use a switch statement in varying_info_visitor::visit(ir_variable*)
- use snprintf
- disable the optimization for GLES2
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Diffstat (limited to 'src/glsl/ir_optimization.h')
| -rw-r--r-- | src/glsl/ir_optimization.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h index d38d5e3036..fad6f1bfe5 100644 --- a/src/glsl/ir_optimization.h +++ b/src/glsl/ir_optimization.h @@ -76,6 +76,10 @@ 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); +void do_dead_builtin_varyings(struct gl_context *ctx, + exec_list *producer, exec_list *consumer, + unsigned num_tfeedback_decls, + class tfeedback_decl *tfeedback_decls); bool do_dead_code(exec_list *instructions, bool uniform_locations_assigned); bool do_dead_code_local(exec_list *instructions); bool do_dead_code_unlinked(exec_list *instructions); |