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nir: Handle array-deref-of-vector case in loop analysis

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SPIR-V can produce those for SSBO and UBO access.  Found when testing
the ARB_gl_spirv series.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This commit is contained in:
Caio Marcelo de Oliveira Filho
2019-03-21 20:37:12 -07:00
parent cdd90a7502
commit e5830e1132
1 changed files with 6 additions and 3 deletions
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9
src/compiler/nir/nir_loop_analyze.c
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@@ -480,9 +480,12 @@ find_array_access_via_induction(loop_info_state *state,
*array_index_out = array_index; *array_index_out = array_index;
nir_deref_instr *parent = nir_deref_instr_parent(d); nir_deref_instr *parent = nir_deref_instr_parent(d);
assert(glsl_type_is_array_or_matrix(parent->type)); if (glsl_type_is_array_or_matrix(parent->type)) {
return glsl_get_length(parent->type);
return glsl_get_length(parent->type); } else {
assert(glsl_type_is_vector(parent->type));
return glsl_get_vector_elements(parent->type);
}
} }
return 0; return 0;