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glsl: implement arb_shader_ballot builtins using intrinsics

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This commit is contained in:
Nicolai Hähnle
2017-04-19 10:29:30 +02:00
parent 2c30ea3fcd
commit 0aef96e00c
1 changed files with 83 additions and 3 deletions
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86
src/compiler/glsl/builtin_functions.cpp
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@@ -948,8 +948,11 @@ private:
ir_function_signature *_memory_barrier(const char *intrinsic_name,
builtin_available_predicate avail);
ir_function_signature *_ballot_intrinsic();
ir_function_signature *_ballot();
ir_function_signature *_read_first_invocation_intrinsic(const glsl_type *type);
ir_function_signature *_read_first_invocation(const glsl_type *type);
ir_function_signature *_read_invocation_intrinsic(const glsl_type *type);
ir_function_signature *_read_invocation(const glsl_type *type);
ir_function_signature *_shader_clock_intrinsic(builtin_available_predicate avail,
@@ -1202,6 +1205,43 @@ builtin_builder::create_intrinsics()
add_function("__intrinsic_vote_eq",
_vote_intrinsic(vote, ir_intrinsic_vote_eq),
NULL);
add_function("__intrinsic_ballot", _ballot_intrinsic(), NULL);
add_function("__intrinsic_read_invocation",
_read_invocation_intrinsic(glsl_type::float_type),
_read_invocation_intrinsic(glsl_type::vec2_type),
_read_invocation_intrinsic(glsl_type::vec3_type),
_read_invocation_intrinsic(glsl_type::vec4_type),
_read_invocation_intrinsic(glsl_type::int_type),
_read_invocation_intrinsic(glsl_type::ivec2_type),
_read_invocation_intrinsic(glsl_type::ivec3_type),
_read_invocation_intrinsic(glsl_type::ivec4_type),
_read_invocation_intrinsic(glsl_type::uint_type),
_read_invocation_intrinsic(glsl_type::uvec2_type),
_read_invocation_intrinsic(glsl_type::uvec3_type),
_read_invocation_intrinsic(glsl_type::uvec4_type),
NULL);
add_function("__intrinsic_read_first_invocation",
_read_first_invocation_intrinsic(glsl_type::float_type),
_read_first_invocation_intrinsic(glsl_type::vec2_type),
_read_first_invocation_intrinsic(glsl_type::vec3_type),
_read_first_invocation_intrinsic(glsl_type::vec4_type),
_read_first_invocation_intrinsic(glsl_type::int_type),
_read_first_invocation_intrinsic(glsl_type::ivec2_type),
_read_first_invocation_intrinsic(glsl_type::ivec3_type),
_read_first_invocation_intrinsic(glsl_type::ivec4_type),
_read_first_invocation_intrinsic(glsl_type::uint_type),
_read_first_invocation_intrinsic(glsl_type::uvec2_type),
_read_first_invocation_intrinsic(glsl_type::uvec3_type),
_read_first_invocation_intrinsic(glsl_type::uvec4_type),
NULL);
}
/**
@@ -6014,13 +6054,35 @@ builtin_builder::_memory_barrier(const char *intrinsic_name,
return sig;
}
ir_function_signature *
builtin_builder::_ballot_intrinsic()
{
ir_variable *value = in_var(glsl_type::bool_type, "value");
MAKE_INTRINSIC(glsl_type::uint64_t_type, ir_intrinsic_ballot, shader_ballot,
1, value);
return sig;
}
ir_function_signature *
builtin_builder::_ballot()
{
ir_variable *value = in_var(glsl_type::bool_type, "value");
MAKE_SIG(glsl_type::uint64_t_type, shader_ballot, 1, value);
body.emit(ret(expr(ir_unop_ballot, value)));
ir_variable *retval = body.make_temp(glsl_type::uint64_t_type, "retval");
body.emit(call(shader->symbols->get_function("__intrinsic_ballot"),
retval, sig->parameters));
body.emit(ret(retval));
return sig;
}
ir_function_signature *
builtin_builder::_read_first_invocation_intrinsic(const glsl_type *type)
{
ir_variable *value = in_var(type, "value");
MAKE_INTRINSIC(type, ir_intrinsic_read_first_invocation, shader_ballot,
1, value);
return sig;
}
@@ -6030,7 +6092,21 @@ builtin_builder::_read_first_invocation(const glsl_type *type)
ir_variable *value = in_var(type, "value");
MAKE_SIG(type, shader_ballot, 1, value);
body.emit(ret(expr(ir_unop_read_first_invocation, value)));
ir_variable *retval = body.make_temp(type, "retval");
body.emit(call(shader->symbols->get_function("__intrinsic_read_first_invocation"),
retval, sig->parameters));
body.emit(ret(retval));
return sig;
}
ir_function_signature *
builtin_builder::_read_invocation_intrinsic(const glsl_type *type)
{
ir_variable *value = in_var(type, "value");
ir_variable *invocation = in_var(glsl_type::uint_type, "invocation");
MAKE_INTRINSIC(type, ir_intrinsic_read_invocation, shader_ballot,
2, value, invocation);
return sig;
}
@@ -6041,7 +6117,11 @@ builtin_builder::_read_invocation(const glsl_type *type)
ir_variable *invocation = in_var(glsl_type::uint_type, "invocation");
MAKE_SIG(type, shader_ballot, 2, value, invocation);
body.emit(ret(expr(ir_binop_read_invocation, value, invocation)));
ir_variable *retval = body.make_temp(type, "retval");
body.emit(call(shader->symbols->get_function("__intrinsic_read_invocation"),
retval, sig->parameters));
body.emit(ret(retval));
return sig;
}