Mesa (glsl2): glsl2: Make the dead code handler make its own talloc context .
Eric Anholt
anholt at kemper.freedesktop.org
Tue Jul 27 18:49:59 UTC 2010
Module: Mesa
Branch: glsl2
Commit: 66d4c65ee2c311ea0c71c39a28456d0c11798d6b
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=66d4c65ee2c311ea0c71c39a28456d0c11798d6b
Author: Eric Anholt <eric at anholt.net>
Date: Tue Jul 27 11:28:26 2010 -0700
glsl2: Make the dead code handler make its own talloc context.
This way, we don't need to pass in a parse state, and the context
doesn't grow with the number of passes through optimization.
---
src/glsl/ir_dead_code.cpp | 12 ++++++------
src/glsl/ir_optimization.h | 6 ++----
src/glsl/main.cpp | 2 +-
src/mesa/program/ir_to_mesa.cpp | 2 +-
4 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/src/glsl/ir_dead_code.cpp b/src/glsl/ir_dead_code.cpp
index ea78107..4804407 100644
--- a/src/glsl/ir_dead_code.cpp
+++ b/src/glsl/ir_dead_code.cpp
@@ -146,13 +146,12 @@ ir_dead_code_visitor::visit_leave(ir_assignment *ir)
* for usage on an unlinked instruction stream.
*/
bool
-do_dead_code(struct _mesa_glsl_parse_state *state,
- exec_list *instructions)
+do_dead_code(exec_list *instructions)
{
ir_dead_code_visitor v;
bool progress = false;
- v.mem_ctx = state;
+ v.mem_ctx = talloc_new(NULL);
v.run(instructions);
foreach_iter(exec_list_iterator, iter, v.variable_list) {
@@ -188,6 +187,8 @@ do_dead_code(struct _mesa_glsl_parse_state *state,
progress = true;
}
}
+ talloc_free(v.mem_ctx);
+
return progress;
}
@@ -199,8 +200,7 @@ do_dead_code(struct _mesa_glsl_parse_state *state,
* with global scope.
*/
bool
-do_dead_code_unlinked(struct _mesa_glsl_parse_state *state,
- exec_list *instructions)
+do_dead_code_unlinked(exec_list *instructions)
{
bool progress = false;
@@ -211,7 +211,7 @@ do_dead_code_unlinked(struct _mesa_glsl_parse_state *state,
foreach_iter(exec_list_iterator, sigiter, *f) {
ir_function_signature *sig =
(ir_function_signature *) sigiter.get();
- if (do_dead_code(state, &sig->body))
+ if (do_dead_code(&sig->body))
progress = true;
}
}
diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h
index 4f39565..5dbb025 100644
--- a/src/glsl/ir_optimization.h
+++ b/src/glsl/ir_optimization.h
@@ -33,11 +33,9 @@ bool do_constant_folding(exec_list *instructions);
bool do_constant_variable(exec_list *instructions);
bool do_constant_variable_unlinked(exec_list *instructions);
bool do_copy_propagation(exec_list *instructions);
-bool do_dead_code(struct _mesa_glsl_parse_state *state,
- exec_list *instructions);
+bool do_dead_code(exec_list *instructions);
bool do_dead_code_local(exec_list *instructions);
-bool do_dead_code_unlinked(struct _mesa_glsl_parse_state *state,
- exec_list *instructions);
+bool do_dead_code_unlinked(exec_list *instructions);
bool do_div_to_mul_rcp(exec_list *instructions);
bool do_function_inlining(exec_list *instructions);
bool do_if_return(exec_list *instructions);
diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp
index b629022..08b133f 100644
--- a/src/glsl/main.cpp
+++ b/src/glsl/main.cpp
@@ -162,7 +162,7 @@ compile_shader(struct gl_shader *shader)
progress = do_if_simplification(shader->ir) || progress;
progress = do_copy_propagation(shader->ir) || progress;
progress = do_dead_code_local(shader->ir) || progress;
- progress = do_dead_code_unlinked(state, shader->ir) || progress;
+ progress = do_dead_code_unlinked(shader->ir) || progress;
progress = do_constant_variable_unlinked(shader->ir) || progress;
progress = do_constant_folding(shader->ir) || progress;
progress = do_algebraic(shader->ir) || progress;
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 5cc999c..409b6d7 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -2237,7 +2237,7 @@ _mesa_glsl_compile_shader(GLcontext *ctx, struct gl_shader *shader)
progress = do_if_simplification(shader->ir) || progress;
progress = do_copy_propagation(shader->ir) || progress;
progress = do_dead_code_local(shader->ir) || progress;
- progress = do_dead_code_unlinked(state, shader->ir) || progress;
+ progress = do_dead_code_unlinked(shader->ir) || progress;
progress = do_constant_variable_unlinked(shader->ir) || progress;
progress = do_constant_folding(shader->ir) || progress;
progress = do_algebraic(shader->ir) || progress;
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