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nir: allow to fine tune unrolling for loops with soft fp64 ops

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Lowered fp64 ops can blow up the loop bodies while still being
suitable for unrolling.
Allow for using different parameters to unroll loops with
soft fp64.

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18863>
This commit is contained in:
SoroushIMG
2022-09-29 15:04:21 +01:00
committed by Marge Bot
parent 121f30005f
commit 1e8e785a07
3 changed files with 7 additions and 1 deletions
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4
src/compiler/glsl/gl_nir_linker.c
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@@ -111,7 +111,9 @@ gl_nir_opts(nir_shader *nir)
NIR_PASS(progress, nir, nir_opt_undef);
NIR_PASS(progress, nir, nir_opt_conditional_discard);
if (nir->options->max_unroll_iterations) {
if (nir->options->max_unroll_iterations ||
(nir->options->max_unroll_iterations_fp64 &&
(nir->options->lower_doubles_options & nir_lower_fp64_full_software))) {
NIR_PASS(progress, nir, nir_opt_loop_unroll);
}
} while (progress);