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linker: Do post-link lowering and optimization

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The lowering code should probably be moved elsewhere.
This commit is contained in:
Ian Romanick 2010-07-20 13:36:32 -07:00
parent 60e2d06d1c
commit a7ba9a7919
1 changed files with 38 additions and 0 deletions
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38
src/glsl/linker.cpp
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@ -80,6 +80,7 @@ extern "C" {
#include "hash_table.h"
#include "shader_api.h"
#include "linker.h"
#include "ir_optimization.h"
/**
* Visitor that determines whether or not a variable is ever written.
@ -1223,6 +1224,43 @@ link_shaders(struct gl_shader_program *prog)
}
/* FINISHME: Perform whole-program optimization here. */
for (unsigned i = 0; i < prog->_NumLinkedShaders; i++) {
/* Optimization passes */
bool progress;
exec_list *ir = prog->_LinkedShaders[i]->ir;
/* Lowering */
do_mat_op_to_vec(ir);
do_mod_to_fract(ir);
do_div_to_mul_rcp(ir);
do {
progress = false;
progress = do_function_inlining(ir) || progress;
progress = do_if_simplification(ir) || progress;
progress = do_copy_propagation(ir) || progress;
progress = do_dead_code_local(ir) || progress;
#if 0
progress = do_dead_code_unlinked(state, ir) || progress;
#endif
progress = do_constant_variable_unlinked(ir) || progress;
progress = do_constant_folding(ir) || progress;
progress = do_if_return(ir) || progress;
#if 0
if (ctx->Shader.EmitNoIfs)
progress = do_if_to_cond_assign(ir) || progress;
#endif
progress = do_vec_index_to_swizzle(ir) || progress;
/* Do this one after the previous to let the easier pass handle
* constant vector indexing.
*/
progress = do_vec_index_to_cond_assign(ir) || progress;
progress = do_swizzle_swizzle(ir) || progress;
} while (progress);
}
assign_uniform_locations(prog);