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freedreno: Enable the nir_opt_algebraic_late() pass.

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Reviewed-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Daniel Schürmann 2019-09-27 12:49:06 +02:00
parent d54ae70ee7
commit 10e508c815
1 changed files with 14 additions and 0 deletions
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14
src/freedreno/ir3/ir3_nir.c
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@ -263,6 +263,20 @@ ir3_optimize_nir(struct ir3_shader *shader, nir_shader *s,
if (ubo_progress || idiv_progress)
ir3_optimize_loop(s);
/* Do late algebraic optimization to turn add(a, neg(b)) back into
* subs, then the mandatory cleanup after algebraic. Note that it may
* produce fnegs, and if so then we need to keep running to squash
* fneg(fneg(a)).
*/
bool more_late_algebraic = true;
while (more_late_algebraic) {
more_late_algebraic = OPT(s, nir_opt_algebraic_late);
OPT_V(s, nir_opt_constant_folding);
OPT_V(s, nir_copy_prop);
OPT_V(s, nir_opt_dce);
OPT_V(s, nir_opt_cse);
}
OPT_V(s, nir_remove_dead_variables, nir_var_function_temp);
OPT_V(s, nir_opt_sink, nir_move_const_undef);