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glsl: implement arb_shader_group_vote builtins via intrinsics

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Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle
2017-04-19 10:17:19 +02:00
parent 944455217b
commit 2c30ea3fcd
1 changed files with 32 additions and 6 deletions
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38
src/compiler/glsl/builtin_functions.cpp
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@@ -957,7 +957,9 @@ private:
ir_function_signature *_shader_clock(builtin_available_predicate avail,
const glsl_type *type);
ir_function_signature *_vote(enum ir_expression_operation opcode);
ir_function_signature *_vote_intrinsic(builtin_available_predicate avail,
enum ir_intrinsic_id id);
ir_function_signature *_vote(const char *intrinsic_name);
#undef B0
#undef B1
@@ -1190,6 +1192,16 @@ builtin_builder::create_intrinsics()
_shader_clock_intrinsic(shader_clock,
glsl_type::uvec2_type),
NULL);
add_function("__intrinsic_vote_all",
_vote_intrinsic(vote, ir_intrinsic_vote_all),
NULL);
add_function("__intrinsic_vote_any",
_vote_intrinsic(vote, ir_intrinsic_vote_any),
NULL);
add_function("__intrinsic_vote_eq",
_vote_intrinsic(vote, ir_intrinsic_vote_eq),
NULL);
}
/**
@@ -3168,9 +3180,9 @@ builtin_builder::create_builtins()
glsl_type::uint64_t_type),
NULL);
add_function("anyInvocationARB", _vote(ir_unop_vote_any), NULL);
add_function("allInvocationsARB", _vote(ir_unop_vote_all), NULL);
add_function("allInvocationsEqualARB", _vote(ir_unop_vote_eq), NULL);
add_function("anyInvocationARB", _vote("__intrinsic_vote_any"), NULL);
add_function("allInvocationsARB", _vote("__intrinsic_vote_all"), NULL);
add_function("allInvocationsEqualARB", _vote("__intrinsic_vote_eq"), NULL);
add_function("__builtin_idiv64",
generate_ir::idiv64(mem_ctx, integer_functions_supported),
@@ -6062,12 +6074,26 @@ builtin_builder::_shader_clock(builtin_available_predicate avail,
}
ir_function_signature *
builtin_builder::_vote(enum ir_expression_operation opcode)
builtin_builder::_vote_intrinsic(builtin_available_predicate avail,
enum ir_intrinsic_id id)
{
ir_variable *value = in_var(glsl_type::bool_type, "value");
MAKE_INTRINSIC(glsl_type::bool_type, id, avail, 1, value);
return sig;
}
ir_function_signature *
builtin_builder::_vote(const char *intrinsic_name)
{
ir_variable *value = in_var(glsl_type::bool_type, "value");
MAKE_SIG(glsl_type::bool_type, vote, 1, value);
body.emit(ret(expr(opcode, value)));
ir_variable *retval = body.make_temp(glsl_type::bool_type, "retval");
body.emit(call(shader->symbols->get_function(intrinsic_name),
retval, sig->parameters));
body.emit(ret(retval));
return sig;
}