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/*
* Copyright © 2023 Valve Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <gtest/gtest.h>
#include "nir.h"
#include "nir_builder.h"
namespace {
class nir_lower_alu_width_test : public ::testing::Test {
protected:
nir_lower_alu_width_test();
~nir_lower_alu_width_test();
nir_builder b;
};
nir_lower_alu_width_test::nir_lower_alu_width_test()
{
glsl_type_singleton_init_or_ref();
static const nir_shader_compiler_options options = { };
b = nir_builder_init_simple_shader(MESA_SHADER_VERTEX, &options, "nir_lower_alu_width test");
}
nir_lower_alu_width_test::~nir_lower_alu_width_test()
{
ralloc_free(b.shader);
glsl_type_singleton_decref();
}
TEST_F(nir_lower_alu_width_test, fdot_order)
{
nir_variable *res_var = nir_local_variable_create(b.impl, glsl_float_type(), "res");
b.exact = true;
/* If this isn't done in xyz order, it evaluates to infinity. */
nir_ssa_def *val = nir_fdot(
&b, nir_imm_vec3(&b, 1.7014118346046923e+38, 1.7014118346046923e+38, 8.507059173023462e+37),
nir_imm_vec3(&b, -0.5, 1.5, 1.0));
nir_intrinsic_instr *store =
nir_build_store_deref(&b, &nir_build_deref_var(&b, res_var)->dest.ssa, val);
nir_lower_alu_width(b.shader, NULL, NULL);
nir_opt_constant_folding(b.shader);
ASSERT_TRUE(nir_src_is_const(store->src[1]));
EXPECT_EQ(nir_src_as_float(store->src[1]), 2.5521177519070385e+38);
}
}
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