Mesa (master): glsl2: Perform initial bits of loop analysis during compilation

[Ian Romanick]

Module: Mesa
Branch: master
Commit: 8df2dbf91ddfd0c1590e33015e85470b67e69319
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8df2dbf91ddfd0c1590e33015e85470b67e69319

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Thu Aug 26 16:45:22 2010 -0700

glsl2: Perform initial bits of loop analysis during compilation

---

 src/glsl/glsl_parser_extras.cpp |    5 +++++
 src/glsl/main.cpp               |    5 +++++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index bc56e4f..2d045ac 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -34,6 +34,7 @@ extern "C" {
 #include "glsl_parser_extras.h"
 #include "glsl_parser.h"
 #include "ir_optimization.h"
+#include "loop_analysis.h"
 
 _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct __GLcontextRec *ctx,
 					       GLenum target, void *mem_ctx)
@@ -739,6 +740,10 @@ do_common_optimization(exec_list *ir, bool linked)
    progress = do_swizzle_swizzle(ir) || progress;
    progress = do_noop_swizzle(ir) || progress;
 
+   loop_state *ls = analyze_loop_variables(ir);
+   progress = set_loop_controls(ir, ls) || progress;
+   delete ls;
+
    return progress;
 }
 
diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp
index cb9f8a5..411bc08 100644
--- a/src/glsl/main.cpp
+++ b/src/glsl/main.cpp
@@ -35,6 +35,7 @@
 #include "ir_optimization.h"
 #include "ir_print_visitor.h"
 #include "program.h"
+#include "loop_analysis.h"
 
 extern "C" struct gl_shader *
 _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
@@ -174,6 +175,10 @@ compile_shader(struct gl_shader *shader)
 	 progress = do_vec_index_to_swizzle(shader->ir) || progress;
 	 progress = do_vec_index_to_cond_assign(shader->ir) || progress;
 	 progress = do_swizzle_swizzle(shader->ir) || progress;
+
+	 loop_state *ls = analyze_loop_variables(shader->ir);
+	 set_loop_controls(shader->ir, ls);
+	 delete ls;
       } while (progress);
 
       validate_ir_tree(shader->ir);