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| author | Eric Anholt <eric@anholt.net> | 2010-08-09 17:03:46 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-08-09 19:21:18 -0700 |
| commit | 8bebbeb7c5b26ec9166a4644a2c051238d18509b (patch) | |
| tree | f2f663f93e10674b2e39f3c1a44a0e8a57060b1b /src/mesa/program | |
| parent | 81996ae8618759cf7fdd033042a96f3014659f6c (diff) | |
| download | external_mesa3d-8bebbeb7c5b26ec9166a4644a2c051238d18509b.zip external_mesa3d-8bebbeb7c5b26ec9166a4644a2c051238d18509b.tar.gz external_mesa3d-8bebbeb7c5b26ec9166a4644a2c051238d18509b.tar.bz2 | |
glsl2: Add constant propagation.
Whereas constant folding evaluates constant expressions at rvalue
nodes, constant propagation tracks constant components of vectors
across execution to replace (possibly swizzled) variable dereferences
with constant values, triggering possible constant folding or reduced
variable liveness.
Diffstat (limited to 'src/mesa/program')
| -rw-r--r-- | src/mesa/program/ir_to_mesa.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index c6856eb..5a272ab 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -2581,6 +2581,7 @@ _mesa_glsl_compile_shader(GLcontext *ctx, struct gl_shader *shader) progress = do_dead_code_local(shader->ir) || progress; progress = do_dead_code_unlinked(shader->ir) || progress; progress = do_tree_grafting(shader->ir) || progress; + progress = do_constant_propagation(shader->ir) || progress; progress = do_constant_variable_unlinked(shader->ir) || progress; progress = do_constant_folding(shader->ir) || progress; progress = do_algebraic(shader->ir) || progress; |