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glsl_to_tgsi: always run copy_propagate() and eliminate_dead_code_advanced()

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These two passes are written to handle indirect addressing properly.
This commit is contained in:
Bryan Cain 2011-06-27 17:40:10 -05:00
parent 4c8b6a2868
commit 9c2810103d
1 changed files with 4 additions and 5 deletions
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9
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
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@ -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();