From 6a2479d61804e6cfc7389e1185139d0c8be758e3 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Fri, 25 Mar 2016 10:35:03 -0700 Subject: [PATCH] nir/builder: Add a helper for storing to variable derefs Reviewed-by: Rob Clark --- src/compiler/nir/nir_builder.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h index 4df79f58a7e..e9c409b8d12 100644 --- a/src/compiler/nir/nir_builder.h +++ b/src/compiler/nir/nir_builder.h @@ -398,6 +398,22 @@ nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value, nir_builder_instr_insert(build, &store->instr); } +static inline void +nir_store_deref_var(nir_builder *build, nir_deref_var *deref, + nir_ssa_def *value, unsigned writemask) +{ + const unsigned num_components = + glsl_get_vector_elements(nir_deref_tail(&deref->deref)->type); + + nir_intrinsic_instr *store = + nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_var); + store->num_components = num_components; + store->const_index[0] = writemask & ((1 << num_components) - 1); + store->variables[0] = nir_deref_as_var(nir_copy_deref(store, &deref->deref)); + store->src[0] = nir_src_for_ssa(value); + nir_builder_instr_insert(build, &store->instr); +} + static inline void nir_copy_deref_var(nir_builder *build, nir_deref_var *dest, nir_deref_var *src) { -- 2.30.2