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nir/opt_vectorize_io: optionally don't vectorize IO with different types

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Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11443

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29895>
This commit is contained in:
Marek Olšák 2024-07-07 07:50:38 -04:00 • committed by Marge Bot
parent 07ef1a8124
commit d90080b51b
3 changed files with 29 additions and 1 deletions
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3
src/amd/common/ac_shader_util.c
View file

@ -99,7 +99,8 @@ void ac_set_nir_options(struct radeon_info *info, bool use_llvm,
options->io_options = nir_io_has_flexible_input_interpolation_except_flat |
(info->gfx_level >= GFX8 ? nir_io_16bit_input_output_support : 0) |
nir_io_prefer_scalar_fs_inputs |
nir_io_mix_convergent_flat_with_interpolated;
nir_io_mix_convergent_flat_with_interpolated |
nir_io_vectorizer_ignores_types;
}
bool

8
src/compiler/nir/nir.h
View file

@ -3727,6 +3727,14 @@ typedef enum {
*/
nir_io_mix_convergent_flat_with_interpolated = BITFIELD_BIT(5),
/**
* Whether src_type and dest_type of IO intrinsics are irrelevant and
* should be ignored by nir_opt_vectorize_io. All drivers that always treat
* load_input and store_output as untyped and load_interpolated_input as
* float##bit_size should set this.
*/
nir_io_vectorizer_ignores_types = BITFIELD_BIT(6),
/* Options affecting the GLSL compiler are below. */
/**

19
src/compiler/nir/nir_opt_vectorize_io.c
View file

@ -76,6 +76,25 @@ compare_is_not_vectorizable(nir_intrinsic_instr *a, nir_intrinsic_instr *b)
sem0.high_16bits != sem1.high_16bits)
return sem0.high_16bits > sem1.high_16bits ? 1 : -1;
nir_shader *shader =
nir_cf_node_get_function(&a->instr.block->cf_node)->function->shader;
/* Compare the types. */
if (!(shader->options->io_options & nir_io_vectorizer_ignores_types)) {
unsigned type_a, type_b;
if (nir_intrinsic_has_src_type(a)) {
type_a = nir_intrinsic_src_type(a);
type_b = nir_intrinsic_src_type(b);
} else {
type_a = nir_intrinsic_dest_type(a);
type_b = nir_intrinsic_dest_type(b);
}
if (type_a != type_b)
return type_a > type_b ? 1 : -1;
}
return 0;
}