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intel/compiler: Run extra fp64 lowering pass on devices that don't support int64.

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In some cases nir_lower_int64 will emit fp64 operations which aren't
natively supported on any Intel hardware (e.g. ftrunc, frem).  An
extra pass of nir_opt_algebraic (for frem) and nir_lower_doubles is
required in order to take care of them.  This fixes several int64
test-cases on MTL hardware.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Mykhailo Skorokhodov <mykhailo.skorokhodov@globallogic.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19390>
This commit is contained in:
Francisco Jerez
2022-10-28 17:02:13 -07:00
committed by Marge Bot
parent e14f85366e
commit 5d4df3ac23
1 changed files with 4 additions and 1 deletions
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5
src/intel/compiler/brw_nir.c
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@@ -951,7 +951,10 @@ brw_preprocess_nir(const struct brw_compiler *compiler, nir_shader *nir,
brw_nir_optimize(nir, compiler, is_scalar, true); brw_nir_optimize(nir, compiler, is_scalar, true);
OPT(nir_lower_doubles, softfp64, nir->options->lower_doubles_options); OPT(nir_lower_doubles, softfp64, nir->options->lower_doubles_options);
OPT(nir_lower_int64); if (OPT(nir_lower_int64)) {
OPT(nir_opt_algebraic);
OPT(nir_lower_doubles, softfp64, nir->options->lower_doubles_options);
}
OPT(nir_lower_bit_size, lower_bit_size_callback, (void *)compiler); OPT(nir_lower_bit_size, lower_bit_size_callback, (void *)compiler);