diff options
| author | Eric Anholt <[email protected]> | 2010-08-09 17:03:46 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2010-08-09 19:21:18 -0700 |
| commit | 8bebbeb7c5b26ec9166a4644a2c051238d18509b (patch) | |
| tree | f2f663f93e10674b2e39f3c1a44a0e8a57060b1b /src/glsl/linker.cpp | |
| parent | 81996ae8618759cf7fdd033042a96f3014659f6c (diff) | |
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/glsl/linker.cpp')
| -rw-r--r-- | src/glsl/linker.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp index e93c2f55549..52c93227888 100644 --- a/src/glsl/linker.cpp +++ b/src/glsl/linker.cpp @@ -1296,6 +1296,7 @@ link_shaders(struct gl_shader_program *prog) progress = do_dead_code_local(ir) || progress; progress = do_dead_code(ir) || progress; progress = do_tree_grafting(ir) || progress; + progress = do_constant_propagation(ir) || progress; progress = do_constant_variable(ir) || progress; progress = do_constant_folding(ir) || progress; progress = do_algebraic(ir) || progress; |