From: Jason Ekstrand Date: Sat, 10 Dec 2016 19:32:29 +0000 (-0800) Subject: nir/builder: Add a load_deref_var helper X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=75a6707984d520d70df14fca46f29ac9e4e7e8d9;p=mesa.git nir/builder: Add a load_deref_var helper Reviewed-by: Timothy Arceri --- diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h index 2ea9af1e63d..1da30ab8fc1 100644 --- a/src/compiler/nir/nir_builder.h +++ b/src/compiler/nir/nir_builder.h @@ -411,6 +411,22 @@ nir_load_var(nir_builder *build, nir_variable *var) return &load->dest.ssa; } +static inline nir_ssa_def * +nir_load_deref_var(nir_builder *build, nir_deref_var *deref) +{ + const struct glsl_type *type = nir_deref_tail(&deref->deref)->type; + const unsigned num_components = glsl_get_vector_elements(type); + + nir_intrinsic_instr *load = + nir_intrinsic_instr_create(build->shader, nir_intrinsic_load_var); + load->num_components = num_components; + load->variables[0] = nir_deref_var_clone(deref, load); + nir_ssa_dest_init(&load->instr, &load->dest, num_components, + glsl_get_bit_size(type), NULL); + nir_builder_instr_insert(build, &load->instr); + return &load->dest.ssa; +} + static inline void nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value, unsigned writemask)