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vc4: Enable NIR-based loop unrolling. 

This successfully unrolls a new shader in GLB2.7, which also gets that
shader to successfully compile in multithreaded mode.
This commit is contained in:
Eric Anholt 2016-12-27 12:29:09 -08:00
parent 5f323198ea
commit 63e7671c7e
1 changed files with 5 additions and 0 deletions
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5
src/gallium/drivers/vc4/vc4_program.c
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@ -1540,6 +1540,10 @@ vc4_optimize_nir(struct nir_shader *s)
NIR_PASS(progress, s, nir_opt_algebraic);
NIR_PASS(progress, s, nir_opt_constant_folding);
NIR_PASS(progress, s, nir_opt_undef);
NIR_PASS(progress, s, nir_opt_loop_unroll,
nir_var_shader_in |
nir_var_shader_out |
nir_var_local);
} while (progress);
}
@ -2155,6 +2159,7 @@ static const nir_shader_compiler_options nir_options = {
.lower_fsqrt = true,
.lower_negate = true,
.native_integers = true,
.max_unroll_iterations = 32,
};
const void *