Mesa (glsl2): glsl2: Do algebraic optimizations after linking as well.

[Eric Anholt]

Module: Mesa
Branch: glsl2
Commit: f6b03f323500c71fc20c0d64c618d9aa73ced5b4
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f6b03f323500c71fc20c0d64c618d9aa73ced5b4

Author: Eric Anholt <eric at anholt.net>
Date:   Sat Jul 31 15:47:35 2010 -0700

glsl2: Do algebraic optimizations after linking as well.

Linking brings in inlining of builtins, so we weren't catching the
(rcp(/sqrt(x)) -> rsq(x)) without it.

---

 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 9b47e47..9d53197 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -1289,6 +1289,7 @@ link_shaders(struct gl_shader_program *prog)
 	 progress = do_tree_grafting(ir) || progress;
 	 progress = do_constant_variable_unlinked(ir) || progress;
 	 progress = do_constant_folding(ir) || progress;
+	 progress = do_algebraic(ir) || progress;
 	 progress = do_if_return(ir) || progress;
 #if 0
 	 if (ctx->Shader.EmitNoIfs)