diff options
author | Kenneth Graunke <kenneth@whitecape.org> | 2015-05-12 01:53:24 -0700 |
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committer | Kenneth Graunke <kenneth@whitecape.org> | 2015-09-11 00:04:17 -0700 |
commit | cb2b118e4017b1cd90dcc02e688d859b2709465e (patch) | |
tree | 40a4e20dc5f3998dec7e0cfa99fbf10a50136f36 | |
parent | 4654439fdd766f79a78fe0d812fd916f5815e7e6 (diff) |
nir/builder: Add nir_load_var() and nir_store_var() helpers.
These provide a convenient way to do simple variable loads and stores.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
-rw-r--r-- | src/glsl/nir/nir_builder.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_builder.h b/src/glsl/nir/nir_builder.h index ba988d71dde..ffa31c90a45 100644 --- a/src/glsl/nir/nir_builder.h +++ b/src/glsl/nir/nir_builder.h @@ -234,4 +234,31 @@ nir_ssa_for_src(nir_builder *build, nir_src src, int num_components) return nir_imov_alu(build, alu, num_components); } +static inline nir_ssa_def * +nir_load_var(nir_builder *build, nir_variable *var) +{ + const unsigned num_components = glsl_get_vector_elements(var->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_create(load, var); + nir_ssa_dest_init(&load->instr, &load->dest, num_components, 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) +{ + const unsigned num_components = glsl_get_vector_elements(var->type); + + nir_intrinsic_instr *store = + nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_var); + store->num_components = num_components; + store->variables[0] = nir_deref_var_create(store, var); + store->src[0] = nir_src_for_ssa(value); + nir_builder_instr_insert(build, &store->instr); +} + #endif /* NIR_BUILDER_H */ |