1 //===-- Utility class to test ceil[f|l] -------------------------*- 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 #include "utils/FPUtil/TestHelpers.h" 10 #include "utils/MPFRWrapper/MPFRUtils.h" 11 #include "utils/UnitTest/Test.h" 12 13 #include <math.h> 14 15 namespace mpfr = __llvm_libc::testing::mpfr; 16 17 template <typename T> class CeilTest : public __llvm_libc::testing::Test { 18 19 DECLARE_SPECIAL_CONSTANTS(T) 20 21 public: 22 typedef T (*CeilFunc)(T); 23 testSpecialNumbers(CeilFunc func)24 void testSpecialNumbers(CeilFunc func) { 25 EXPECT_FP_EQ(zero, func(zero)); 26 EXPECT_FP_EQ(negZero, func(negZero)); 27 28 EXPECT_FP_EQ(inf, func(inf)); 29 EXPECT_FP_EQ(negInf, func(negInf)); 30 31 EXPECT_FP_EQ(aNaN, func(aNaN)); 32 } 33 testRoundedNumbers(CeilFunc func)34 void testRoundedNumbers(CeilFunc func) { 35 EXPECT_FP_EQ(T(1.0), func(T(1.0))); 36 EXPECT_FP_EQ(T(-1.0), func(T(-1.0))); 37 EXPECT_FP_EQ(T(10.0), func(T(10.0))); 38 EXPECT_FP_EQ(T(-10.0), func(T(-10.0))); 39 EXPECT_FP_EQ(T(1234.0), func(T(1234.0))); 40 EXPECT_FP_EQ(T(-1234.0), func(T(-1234.0))); 41 } 42 testFractions(CeilFunc func)43 void testFractions(CeilFunc func) { 44 EXPECT_FP_EQ(T(1.0), func(T(0.5))); 45 EXPECT_FP_EQ(T(-0.0), func(T(-0.5))); 46 EXPECT_FP_EQ(T(1.0), func(T(0.115))); 47 EXPECT_FP_EQ(T(-0.0), func(T(-0.115))); 48 EXPECT_FP_EQ(T(1.0), func(T(0.715))); 49 EXPECT_FP_EQ(T(-0.0), func(T(-0.715))); 50 EXPECT_FP_EQ(T(2.0), func(T(1.3))); 51 EXPECT_FP_EQ(T(-1.0), func(T(-1.3))); 52 EXPECT_FP_EQ(T(2.0), func(T(1.5))); 53 EXPECT_FP_EQ(T(-1.0), func(T(-1.5))); 54 EXPECT_FP_EQ(T(2.0), func(T(1.75))); 55 EXPECT_FP_EQ(T(-1.0), func(T(-1.75))); 56 EXPECT_FP_EQ(T(11.0), func(T(10.32))); 57 EXPECT_FP_EQ(T(-10.0), func(T(-10.32))); 58 EXPECT_FP_EQ(T(11.0), func(T(10.65))); 59 EXPECT_FP_EQ(T(-10.0), func(T(-10.65))); 60 EXPECT_FP_EQ(T(1235.0), func(T(1234.38))); 61 EXPECT_FP_EQ(T(-1234.0), func(T(-1234.38))); 62 EXPECT_FP_EQ(T(1235.0), func(T(1234.96))); 63 EXPECT_FP_EQ(T(-1234.0), func(T(-1234.96))); 64 } 65 testRange(CeilFunc func)66 void testRange(CeilFunc func) { 67 constexpr UIntType count = 10000000; 68 constexpr UIntType step = UIntType(-1) / count; 69 for (UIntType i = 0, v = 0; i <= count; ++i, v += step) { 70 T x = T(FPBits(v)); 71 if (isnan(x) || isinf(x)) 72 continue; 73 74 ASSERT_MPFR_MATCH(mpfr::Operation::Ceil, x, func(x), 0.0); 75 } 76 } 77 }; 78 79 #define LIST_CEIL_TESTS(T, func) \ 80 using LlvmLibcCeilTest = CeilTest<T>; \ 81 TEST_F(LlvmLibcCeilTest, SpecialNumbers) { testSpecialNumbers(&func); } \ 82 TEST_F(LlvmLibcCeilTest, RoundedNubmers) { testRoundedNumbers(&func); } \ 83 TEST_F(LlvmLibcCeilTest, Fractions) { testFractions(&func); } \ 84 TEST_F(LlvmLibcCeilTest, Range) { testRange(&func); } 85