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nir: Add nir_builder helpers for creating load_const intrinsics. 

Both prog->nir and tgsi->nir will want to use these.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Kenneth Graunke 2015-03-25 02:11:52 -07:00
parent 74fd226e34
commit 75c922e0fe
1 changed files with 35 additions and 0 deletions
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35
src/glsl/nir/nir_builder.h
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@ -47,6 +47,41 @@ nir_builder_insert_after_cf_list(nir_builder *build,
build->cf_node_list = cf_node_list;
}
static inline nir_ssa_def *
nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value)
{
nir_load_const_instr *load_const =
nir_load_const_instr_create(build->shader, num_components);
if (!load_const)
return NULL;
load_const->value = value;
nir_instr_insert_after_cf_list(build->cf_node_list, &load_const->instr);
return &load_const->def;
}
static inline nir_ssa_def *
nir_imm_float(nir_builder *build, float x)
{
nir_const_value v = { { .f = {x, 0, 0, 0} } };
return nir_build_imm(build, 1, v);
}
static inline nir_ssa_def *
nir_imm_vec4(nir_builder *build, float x, float y, float z, float w)
{
nir_const_value v = { { .f = {x, y, z, w} } };
return nir_build_imm(build, 4, v);
}
static inline nir_ssa_def *
nir_imm_int(nir_builder *build, int x)
{
nir_const_value v = { { .i = {x, 0, 0, 0} } };
return nir_build_imm(build, 1, v);
}
static inline nir_ssa_def *
nir_build_alu(nir_builder *build, nir_op op, nir_ssa_def *src0,