| 1 | //===-- Unittests for nanl ------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "hdr/signal_macros.h" |
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| 10 | #include "src/__support/FPUtil/FPBits.h" |
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| 11 | #include "src/__support/macros/sanitizer.h" |
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| 12 | #include "src/math/nanl.h" |
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| 13 | #include "test/UnitTest/FEnvSafeTest.h" |
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| 14 | #include "test/UnitTest/FPMatcher.h" |
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| 15 | #include "test/UnitTest/Test.h" |
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| 16 | |
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| 17 | #if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64) |
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| 18 | #define SELECT_LONG_DOUBLE(val, _, __) val |
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| 19 | #elif defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80) |
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| 20 | #define SELECT_LONG_DOUBLE(_, val, __) val |
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| 21 | #elif defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128) |
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| 22 | #define SELECT_LONG_DOUBLE(_, __, val) val |
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| 23 | #else |
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| 24 | #error "Unknown long double type" |
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| 25 | #endif |
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| 26 | |
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| 27 | class LlvmLibcNanlTest : public LIBC_NAMESPACE::testing::FEnvSafeTest { |
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| 28 | public: |
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| 29 | using StorageType = LIBC_NAMESPACE::fputil::FPBits<long double>::StorageType; |
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| 30 | |
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| 31 | void run_test(const char *input_str, StorageType bits) { |
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| 32 | long double result = LIBC_NAMESPACE::nanl(input_str); |
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| 33 | auto actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(result); |
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| 34 | auto expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(bits); |
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| 35 | EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval()); |
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| 36 | } |
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| 37 | }; |
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| 38 | |
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| 39 | TEST_F(LlvmLibcNanlTest, NCharSeq) { |
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| 40 | run_test("" , |
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| 41 | SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40), |
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| 42 | (UInt128(0x7fff800000000000) << 64))); |
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| 43 | run_test("1234" , SELECT_LONG_DOUBLE( |
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| 44 | 0x7ff80000000004d2, |
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| 45 | (UInt128(0x7fffc00000) << 40) + UInt128(0x4d2), |
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| 46 | (UInt128(0x7fff800000000000) << 64) + UInt128(0x4d2))); |
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| 47 | run_test("0x1234" , |
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| 48 | SELECT_LONG_DOUBLE(0x7ff8000000001234, |
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| 49 | (UInt128(0x7fffc00000) << 40) + UInt128(0x1234), |
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| 50 | (UInt128(0x7fff800000000000) << 64) + |
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| 51 | UInt128(0x1234))); |
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| 52 | run_test("1a" , |
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| 53 | SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40), |
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| 54 | (UInt128(0x7fff800000000000) << 64))); |
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| 55 | run_test("1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM_" , |
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| 56 | SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40), |
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| 57 | (UInt128(0x7fff800000000000) << 64))); |
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| 58 | run_test("10000000000000000000000000000000000000000000000000" , |
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| 59 | SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40), |
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| 60 | (UInt128(0x7fff800000000000) << 64))); |
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| 61 | } |
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| 62 | |
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| 63 | TEST_F(LlvmLibcNanlTest, RandomString) { |
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| 64 | StorageType expected = |
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| 65 | SELECT_LONG_DOUBLE(0x7ff8000000000000, (UInt128(0x7fffc00000) << 40), |
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| 66 | (UInt128(0x7fff800000000000) << 64)); |
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| 67 | |
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| 68 | run_test(" 1234" , expected); |
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| 69 | run_test("-1234" , expected); |
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| 70 | run_test("asd&f" , expected); |
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| 71 | run_test("123 " , expected); |
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| 72 | } |
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| 73 | |
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| 74 | #if defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER) |
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| 75 | TEST_F(LlvmLibcNanlTest, InvalidInput) { |
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| 76 | EXPECT_DEATH([] { LIBC_NAMESPACE::nanl(nullptr); }, WITH_SIGNAL(-1)); |
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| 77 | } |
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| 78 | #endif // LIBC_HAS_ADDRESS_SANITIZER |
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| 79 | |
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