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radv,aco: scalarize all phis via nir_lower_phis_to_scalar()

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This allows to remove some ACO code which did so previously.

Totals from 93 (0.06% of 149839) affected shaders (Navi2):
CodeSize: 582424 -> 582348 (-0.01%); split: -0.10%, +0.08%
Instrs: 107083 -> 107011 (-0.07%); split: -0.08%, +0.01%
Latency: 483338 -> 484881 (+0.32%); split: -0.09%, +0.40%
InvThroughput: 101129 -> 101532 (+0.40%); split: -0.03%, +0.42%
Copies: 9893 -> 9774 (-1.20%); split: -1.28%, +0.08%
Branches: 2862 -> 2858 (-0.14%)
PreSGPRs: 3342 -> 3339 (-0.09%)
PreVGPRs: 4567 -> 4565 (-0.04%)

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11181>
This commit is contained in:
Daniel Schürmann
2021-06-04 11:11:52 +02:00
committed by Marge Bot
parent 057a702a3f
commit dc807dff3e
3 changed files with 2 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/amd/compiler/aco_instruction_selection_setup.cpp
+1 -1
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@@ -509,7 +509,7 @@ setup_nir(isel_context *ctx, nir_shader *nir)
setup_variables(ctx, nir);
nir_convert_to_lcssa(nir, true, false);
nir_lower_phis_to_scalar(nir, false);
nir_lower_phis_to_scalar(nir, true);
nir_function_impl *func = nir_shader_get_entrypoint(nir);
nir_index_ssa_defs(func);