Mesa (glsl-to-tgsi): glsl_to_tgsi: always run copy_propagate() and eliminate_dead_code_advanced()
Bryan Cain
bryanc at kemper.freedesktop.org
Mon Jun 27 22:41:43 UTC 2011
Module: Mesa
Branch: glsl-to-tgsi
Commit: 49f4336ab96df0c907f1ff86a35aaba40ed451d9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=49f4336ab96df0c907f1ff86a35aaba40ed451d9
Author: Bryan Cain <bryancain3 at gmail.com>
Date: Mon Jun 27 17:40:10 2011 -0500
glsl_to_tgsi: always run copy_propagate() and eliminate_dead_code_advanced()
These two passes are written to handle indirect addressing properly.
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index f87c64f..e7d0af8 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -4422,18 +4422,17 @@ get_mesa_program(struct gl_context *ctx,
if (target == GL_VERTEX_PROGRAM_ARB)
v->remove_output_reads(PROGRAM_VARYING);
- /* Perform the simplify_cmp optimization, which is required by r300g. */
+ /* Perform optimizations on the instructions in the glsl_to_tgsi_visitor. */
v->simplify_cmp();
+ v->copy_propagate();
+ while (v->eliminate_dead_code_advanced());
- /* Perform optimizations on the instructions in the glsl_to_tgsi_visitor.
- * FIXME: These passes to optimize temporary registers don't work when there
+ /* FIXME: These passes to optimize temporary registers don't work when there
* is indirect addressing of the temporary register space. We need proper
* array support so that we don't have to give up these passes in every
* shader that uses arrays.
*/
if (!v->indirect_addr_temps) {
- v->copy_propagate();
- while (v->eliminate_dead_code_advanced());
v->eliminate_dead_code();
v->merge_registers();
v->renumber_registers();
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