1 //===-- Unittests for exp10f ----------------------------------------------===// 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 "hdr/math_macros.h" 10 #include "src/__support/FPUtil/FPBits.h" 11 #include "src/errno/libc_errno.h" 12 #include "src/math/exp10f.h" 13 #include "test/UnitTest/FPMatcher.h" 14 #include "test/UnitTest/Test.h" 15 16 #include <stdint.h> 17 18 using LlvmLibcExp10fTest = LIBC_NAMESPACE::testing::FPTest<float>; 19 20 TEST_F(LlvmLibcExp10fTest, SpecialNumbers) { 21 LIBC_NAMESPACE::libc_errno = 0; 22 23 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::exp10f(aNaN)); 24 EXPECT_MATH_ERRNO(0); 25 26 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::exp10f(inf)); 27 EXPECT_MATH_ERRNO(0); 28 29 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::exp10f(neg_inf)); 30 EXPECT_MATH_ERRNO(0); 31 32 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::exp10f(0.0f)); 33 EXPECT_MATH_ERRNO(0); 34 35 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::exp10f(-0.0f)); 36 EXPECT_MATH_ERRNO(0); 37 38 EXPECT_FP_EQ_ALL_ROUNDING(10.0f, LIBC_NAMESPACE::exp10f(1.0f)); 39 EXPECT_FP_EQ_ALL_ROUNDING(100.0f, LIBC_NAMESPACE::exp10f(2.0f)); 40 EXPECT_FP_EQ_ALL_ROUNDING(1000.0f, LIBC_NAMESPACE::exp10f(3.0f)); 41 } 42 43 TEST_F(LlvmLibcExp10fTest, Overflow) { 44 LIBC_NAMESPACE::libc_errno = 0; 45 EXPECT_FP_EQ_WITH_EXCEPTION( 46 inf, LIBC_NAMESPACE::exp10f(FPBits(0x7f7fffffU).get_val()), FE_OVERFLOW); 47 EXPECT_MATH_ERRNO(ERANGE); 48 49 EXPECT_FP_EQ_WITH_EXCEPTION( 50 inf, LIBC_NAMESPACE::exp10f(FPBits(0x43000000U).get_val()), FE_OVERFLOW); 51 EXPECT_MATH_ERRNO(ERANGE); 52 53 EXPECT_FP_EQ_WITH_EXCEPTION( 54 inf, LIBC_NAMESPACE::exp10f(FPBits(0x43000001U).get_val()), FE_OVERFLOW); 55 EXPECT_MATH_ERRNO(ERANGE); 56 } 57 58 #ifdef LIBC_TEST_FTZ_DAZ 59 60 using namespace LIBC_NAMESPACE::testing; 61 62 TEST_F(LlvmLibcExp10fTest, FTZMode) { 63 ModifyMXCSR mxcsr(FTZ); 64 65 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal)); 66 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal)); 67 } 68 69 TEST_F(LlvmLibcExp10fTest, DAZMode) { 70 ModifyMXCSR mxcsr(DAZ); 71 72 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal)); 73 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal)); 74 } 75 76 TEST_F(LlvmLibcExp10fTest, FTZDAZMode) { 77 ModifyMXCSR mxcsr(FTZ | DAZ); 78 79 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal)); 80 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal)); 81 } 82 83 #endif 84