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1 //===-- Utility class to test different flavors of cproj --------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_LIBC_TEST_SRC_COMPLEX_CPROJTEST_H
10 #define LLVM_LIBC_TEST_SRC_COMPLEX_CPROJTEST_H
11 
12 #include "test/UnitTest/FEnvSafeTest.h"
13 #include "test/UnitTest/FPMatcher.h"
14 #include "test/UnitTest/Test.h"
15 
16 #include "hdr/math_macros.h"
17 
18 template <typename CFPT, typename FPT>
19 class CprojTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
20 
21   DECLARE_SPECIAL_CONSTANTS(FPT)
22 
23 public:
24   typedef CFPT (*CprojFunc)(CFPT);
25 
testSpecialNumbers(CprojFunc func)26   void testSpecialNumbers(CprojFunc func) {
27     EXPECT_CFP_EQ(func(CFPT(inf + 9024.2442i)), CFPT(inf + 0.0i));
28     EXPECT_CFP_EQ(func(CFPT(inf - 9024.2442i)), CFPT(inf - 0.0i));
29     EXPECT_CFP_EQ(func(CFPT(neg_inf + 8923.124i)), CFPT(inf + 0.0i));
30     EXPECT_CFP_EQ(func(CFPT(neg_inf - 8923.124i)), CFPT(inf - 0.0i));
31     EXPECT_CFP_EQ(func(CFPT(9024.2442 + inf * 1.0i)), CFPT(inf + 0.0i));
32     EXPECT_CFP_EQ(func(CFPT(9024.2442 + neg_inf * 1.0i)), CFPT(inf - 0.0i));
33     EXPECT_CFP_EQ(func(CFPT(inf + neg_inf * 1.0i)), CFPT(inf - 0.0i));
34     EXPECT_CFP_EQ(func(CFPT(inf + inf * 1.0i)), CFPT(inf + 0.0i));
35     EXPECT_CFP_EQ(func(CFPT(neg_inf + neg_inf * 1.0i)), CFPT(inf - 0.0i));
36     EXPECT_CFP_EQ(func(CFPT(neg_inf + inf * 1.0i)), CFPT(inf + 0.0i));
37     EXPECT_CFP_EQ(func(CFPT(neg_inf + inf * 1.0i)), CFPT(inf + 0.0i));
38     EXPECT_CFP_EQ(func(CFPT(aNaN + inf * 1.0i)), CFPT(inf + 0.0i));
39     EXPECT_CFP_EQ(func(CFPT(aNaN + neg_inf * 1.0i)), CFPT(inf - 0.0i));
40     EXPECT_CFP_EQ(func(CFPT(90.24 + inf * 1.0i)), CFPT(inf + 0.0i));
41     EXPECT_CFP_EQ(func(CFPT(89.12 + neg_inf * 1.0i)), CFPT(inf - 0.0i));
42 
43     EXPECT_CFP_EQ(func(CFPT(aNaN + 67.123i)), CFPT(aNaN + 67.123i));
44     EXPECT_CFP_EQ(func(CFPT(neg_aNaN + 78.319i)), CFPT(neg_aNaN + 78.319i));
45     EXPECT_CFP_EQ(func(CFPT(sNaN + 7813.131i)), CFPT(sNaN + 7813.131i));
46     EXPECT_CFP_EQ(func(CFPT(neg_sNaN + 7824.152i)), CFPT(neg_sNaN + 7824.152i));
47     EXPECT_CFP_EQ(func(CFPT(min_normal + 782.124i)),
48                   CFPT(min_normal + 782.124i));
49     EXPECT_CFP_EQ(func(CFPT(max_normal + 2141.2352i)),
50                   CFPT(max_normal + 2141.2352i));
51     EXPECT_CFP_EQ(func(CFPT(neg_max_normal + 341.134i)),
52                   CFPT(neg_max_normal + 341.134i));
53     EXPECT_CFP_EQ(func(CFPT(min_denormal + 781.142i)),
54                   CFPT(min_denormal + 781.142i));
55     EXPECT_CFP_EQ(func(CFPT(neg_min_denormal + 781.134i)),
56                   CFPT(neg_min_denormal + 781.134i));
57     EXPECT_CFP_EQ(func(CFPT(max_denormal + 1241.112i)),
58                   CFPT(max_denormal + 1241.112i));
59     EXPECT_CFP_EQ(func(CFPT(zero + 121.121i)), CFPT(zero + 121.121i));
60     EXPECT_CFP_EQ(func(CFPT(67.123 + aNaN * 1.0i)), CFPT(67.123 + aNaN * 1.0i));
61     EXPECT_CFP_EQ(func(CFPT(78.319 + neg_aNaN * 1.0i)),
62                   CFPT(78.319 + neg_aNaN * 1.0i));
63     EXPECT_CFP_EQ(func(CFPT(7813.131 + sNaN * 1.0i)),
64                   CFPT(7813.131 + sNaN * 1.0i));
65     EXPECT_CFP_EQ(func(CFPT(7824.152 + neg_sNaN * 1.0i)),
66                   CFPT(7824.152 + neg_sNaN * 1.0i));
67     EXPECT_CFP_EQ(func(CFPT(782.124 + min_normal * 1.0i)),
68                   CFPT(782.124 + min_normal * 1.0i));
69     EXPECT_CFP_EQ(func(CFPT(2141.2352 + max_normal * 1.0i)),
70                   CFPT(2141.2352 + max_normal * 1.0i));
71     EXPECT_CFP_EQ(func(CFPT(341.134 + neg_max_normal * 1.0i)),
72                   CFPT(341.134 + neg_max_normal * 1.0i));
73     EXPECT_CFP_EQ(func(CFPT(781.142 + min_denormal * 1.0i)),
74                   CFPT(781.142 + min_denormal * 1.0i));
75     EXPECT_CFP_EQ(func(CFPT(781.134 + neg_min_denormal * 1.0i)),
76                   CFPT(781.134 + neg_min_denormal * 1.0i));
77     EXPECT_CFP_EQ(func(CFPT(1241.112 + max_denormal * 1.0i)),
78                   CFPT(1241.112 + max_denormal * 1.0i));
79     EXPECT_CFP_EQ(func(CFPT(121.121 + zero * 1.0i)),
80                   CFPT(121.121 + zero * 1.0i));
81     EXPECT_CFP_EQ(func(CFPT(0.0 - 0.0i)), CFPT(0.0 - 0.0i));
82     EXPECT_CFP_EQ(func(CFPT(0.0 + 0.0i)), CFPT(0.0 + 0.0i));
83     EXPECT_CFP_EQ(func(CFPT(-0.0 - 0.0i)), CFPT(-0.0 - 0.0i));
84     EXPECT_CFP_EQ(func(CFPT(-0.0 + 0.0i)), CFPT(-0.0 + 0.0i));
85   }
86 
testRoundedNumbers(CprojFunc func)87   void testRoundedNumbers(CprojFunc func) {
88     EXPECT_CFP_EQ(func((CFPT)(4523.1413 + 12413.1414i)),
89                   CFPT(4523.1413 + 12413.1414i));
90     EXPECT_CFP_EQ(func((CFPT)(-4523.1413 + 12413.1414i)),
91                   CFPT(-4523.1413 + 12413.1414i));
92     EXPECT_CFP_EQ(func((CFPT)(4523.1413 - 12413.1414i)),
93                   CFPT(4523.1413 - 12413.1414i));
94     EXPECT_CFP_EQ(func((CFPT)(-4523.1413 - 12413.1414i)),
95                   CFPT(-4523.1413 - 12413.1414i));
96 
97     EXPECT_CFP_EQ(func((CFPT)(3210.5678 + 9876.5432i)),
98                   CFPT(3210.5678 + 9876.5432i));
99     EXPECT_CFP_EQ(func((CFPT)(-3210.5678 + 9876.5432i)),
100                   CFPT(-3210.5678 + 9876.5432i));
101     EXPECT_CFP_EQ(func((CFPT)(3210.5678 - 9876.5432i)),
102                   CFPT(3210.5678 - 9876.5432i));
103     EXPECT_CFP_EQ(func((CFPT)(-3210.5678 - 9876.5432i)),
104                   CFPT(-3210.5678 - 9876.5432i));
105 
106     EXPECT_CFP_EQ(func((CFPT)(1234.4321 + 4321.1234i)),
107                   CFPT(1234.4321 + 4321.1234i));
108     EXPECT_CFP_EQ(func((CFPT)(-1234.4321 + 4321.1234i)),
109                   CFPT(-1234.4321 + 4321.1234i));
110     EXPECT_CFP_EQ(func((CFPT)(1234.4321 - 4321.1234i)),
111                   CFPT(1234.4321 - 4321.1234i));
112     EXPECT_CFP_EQ(func((CFPT)(-1234.4321 - 4321.1234i)),
113                   CFPT(-1234.4321 - 4321.1234i));
114 
115     EXPECT_CFP_EQ(func((CFPT)(6789.1234 + 8765.6789i)),
116                   CFPT(6789.1234 + 8765.6789i));
117     EXPECT_CFP_EQ(func((CFPT)(-6789.1234 + 8765.6789i)),
118                   CFPT(-6789.1234 + 8765.6789i));
119     EXPECT_CFP_EQ(func((CFPT)(6789.1234 - 8765.6789i)),
120                   CFPT(6789.1234 - 8765.6789i));
121     EXPECT_CFP_EQ(func((CFPT)(-6789.1234 - 8765.6789i)),
122                   CFPT(-6789.1234 - 8765.6789i));
123   }
124 };
125 
126 #define LIST_CPROJ_TESTS(U, T, func)                                           \
127   using LlvmLibcCprojTest = CprojTest<U, T>;                                   \
128   TEST_F(LlvmLibcCprojTest, SpecialNumbers) { testSpecialNumbers(&func); }     \
129   TEST_F(LlvmLibcCprojTest, RoundedNumbers) { testRoundedNumbers(&func); }
130 
131 #endif // LLVM_LIBC_TEST_SRC_COMPLEX_CPROJTEST_H
132