1 /*
2 * Copyright © 2023 Valve Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "nir_test.h"
25
26 namespace {
27
28 class nir_lower_alu_width_test : public nir_test {
29 protected:
nir_lower_alu_width_test()30 nir_lower_alu_width_test()
31 : nir_test::nir_test("nir_lower_alu_width_test")
32 {
33 }
34 };
35
TEST_F(nir_lower_alu_width_test,fdot_order)36 TEST_F(nir_lower_alu_width_test, fdot_order)
37 {
38 nir_variable *res_var = nir_local_variable_create(b->impl, glsl_float_type(), "res");
39
40 b->exact = true;
41
42 /* If this isn't done in xyz order, it evaluates to infinity. */
43 nir_def *val = nir_fdot(
44 b, nir_imm_vec3(b, 1.7014118346046923e+38, 1.7014118346046923e+38, 8.507059173023462e+37),
45 nir_imm_vec3(b, -0.5, 1.5, 1.0));
46 nir_intrinsic_instr *store =
47 nir_build_store_deref(b, &nir_build_deref_var(b, res_var)->def, val);
48
49 nir_lower_alu_width(b->shader, NULL, NULL);
50 nir_opt_constant_folding(b->shader);
51
52 ASSERT_TRUE(nir_src_is_const(store->src[1]));
53 EXPECT_EQ(nir_src_as_float(store->src[1]), 2.5521177519070385e+38);
54 }
55
56 }
57