Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | //===-- Floating point environment manipulation functions -------*- 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_SRC___SUPPORT_FPUTIL_FENVIMPL_H |
| 10 | #define LLVM_LIBC_SRC___SUPPORT_FPUTIL_FENVIMPL_H |
| 11 | |
| 12 | #include "hdr/fenv_macros.h" |
| 13 | #include "hdr/math_macros.h" |
| 14 | #include "hdr/types/fenv_t.h" |
| 15 | #include "src/__support/libc_errno.h" |
| 16 | #include "src/__support/macros/attributes.h" // LIBC_INLINE |
| 17 | #include "src/__support/macros/config.h" |
| 18 | #include "src/__support/macros/properties/architectures.h" |
| 19 | |
| 20 | #if defined(LIBC_TARGET_ARCH_IS_AARCH64) && defined(__ARM_FP) |
| 21 | #if defined(__APPLE__) |
| 22 | #include "aarch64/fenv_darwin_impl.h" |
| 23 | #else |
| 24 | #include "aarch64/FEnvImpl.h" |
| 25 | #endif |
| 26 | |
| 27 | // The extra !defined(APPLE) condition is to cause x86_64 MacOS builds to use |
| 28 | // the dummy implementations below. Once a proper x86_64 darwin fenv is set up, |
| 29 | // the apple condition here should be removed. |
| 30 | #elif defined(LIBC_TARGET_ARCH_IS_X86) && !defined(__APPLE__) |
| 31 | #include "x86_64/FEnvImpl.h" |
| 32 | #elif defined(LIBC_TARGET_ARCH_IS_ARM) && defined(__ARM_FP) |
| 33 | #include "arm/FEnvImpl.h" |
| 34 | #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV) && defined(__riscv_flen) |
| 35 | #include "riscv/FEnvImpl.h" |
| 36 | #else |
| 37 | |
| 38 | namespace LIBC_NAMESPACE_DECL { |
| 39 | namespace fputil { |
| 40 | |
| 41 | // All dummy functions silently succeed. |
| 42 | |
| 43 | LIBC_INLINE int clear_except(int) { return 0; } |
| 44 | |
| 45 | LIBC_INLINE int test_except(int) { return 0; } |
| 46 | |
| 47 | LIBC_INLINE int get_except() { return 0; } |
| 48 | |
| 49 | LIBC_INLINE int set_except(int) { return 0; } |
| 50 | |
| 51 | LIBC_INLINE int raise_except(int) { return 0; } |
| 52 | |
| 53 | LIBC_INLINE int enable_except(int) { return 0; } |
| 54 | |
| 55 | LIBC_INLINE int disable_except(int) { return 0; } |
| 56 | |
| 57 | LIBC_INLINE int get_round() { return FE_TONEAREST; } |
| 58 | |
| 59 | LIBC_INLINE int set_round(int rounding_mode) { |
| 60 | return (rounding_mode == FE_TONEAREST) ? 0 : 1; |
| 61 | } |
| 62 | |
| 63 | LIBC_INLINE int get_env(fenv_t *) { return 0; } |
| 64 | |
| 65 | LIBC_INLINE int set_env(const fenv_t *) { return 0; } |
| 66 | |
| 67 | } // namespace fputil |
| 68 | } // namespace LIBC_NAMESPACE_DECL |
| 69 | #endif |
| 70 | |
| 71 | namespace LIBC_NAMESPACE_DECL { |
| 72 | namespace fputil { |
| 73 | |
| 74 | LIBC_INLINE int clear_except_if_required(int excepts) { |
| 75 | if (math_errhandling & MATH_ERREXCEPT) |
| 76 | return clear_except(excepts); |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | LIBC_INLINE int set_except_if_required(int excepts) { |
| 81 | if (math_errhandling & MATH_ERREXCEPT) |
| 82 | return set_except(excepts); |
| 83 | return 0; |
| 84 | } |
| 85 | |
| 86 | LIBC_INLINE int raise_except_if_required(int excepts) { |
| 87 | if (math_errhandling & MATH_ERREXCEPT) |
| 88 | return raise_except(excepts); |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | LIBC_INLINE void set_errno_if_required(int err) { |
| 93 | if (math_errhandling & MATH_ERRNO) |
| 94 | libc_errno = err; |
| 95 | } |
| 96 | |
| 97 | } // namespace fputil |
| 98 | } // namespace LIBC_NAMESPACE_DECL |
| 99 | |
| 100 | #endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_FENVIMPL_H |
| 101 |
Warning: This file is not a C or C++ file. It does not have highlighting.