[libc-commits] [libc] [libc][math][c23] Add f16{add, sub}f C23 math functions (PR #96787)
via libc-commits
libc-commits at lists.llvm.org
Fri Jun 28 05:36:19 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-libc
Author: OverMighty (overmighty)
<details>
<summary>Changes</summary>
Part of #<!-- -->93566.
---
Patch is 45.39 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/96787.diff
25 Files Affected:
- (modified) libc/config/linux/aarch64/entrypoints.txt (+2)
- (modified) libc/config/linux/x86_64/entrypoints.txt (+2)
- (modified) libc/docs/math/index.rst (+4)
- (modified) libc/spec/stdc.td (+4)
- (modified) libc/src/__support/FPUtil/dyadic_float.h (+2-2)
- (modified) libc/src/__support/FPUtil/generic/CMakeLists.txt (+19)
- (added) libc/src/__support/FPUtil/generic/add_sub.h (+206)
- (modified) libc/src/math/CMakeLists.txt (+4)
- (added) libc/src/math/f16addf.h (+20)
- (added) libc/src/math/f16subf.h (+20)
- (modified) libc/src/math/generic/CMakeLists.txt (+26)
- (added) libc/src/math/generic/f16addf.cpp (+19)
- (added) libc/src/math/generic/f16subf.cpp (+19)
- (added) libc/test/src/math/AddTest.h (+74)
- (modified) libc/test/src/math/CMakeLists.txt (+26)
- (added) libc/test/src/math/SubTest.h (+74)
- (added) libc/test/src/math/f16addf_test.cpp (+13)
- (added) libc/test/src/math/f16subf_test.cpp (+13)
- (added) libc/test/src/math/smoke/AddTest.h (+156)
- (modified) libc/test/src/math/smoke/CMakeLists.txt (+29)
- (added) libc/test/src/math/smoke/SubTest.h (+158)
- (added) libc/test/src/math/smoke/f16addf_test.cpp (+13)
- (added) libc/test/src/math/smoke/f16subf_test.cpp (+13)
- (modified) libc/utils/MPFRWrapper/MPFRUtils.cpp (+16)
- (modified) libc/utils/MPFRWrapper/MPFRUtils.h (+5-1)
``````````diff
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 746cc675e8fcd..79fa361b15190 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -506,9 +506,11 @@ if(LIBC_TYPES_HAS_FLOAT16)
libc.src.math.canonicalizef16
libc.src.math.ceilf16
libc.src.math.copysignf16
+ libc.src.math.f16addf
libc.src.math.f16divf
libc.src.math.f16fmaf
libc.src.math.f16sqrtf
+ libc.src.math.f16subf
libc.src.math.fabsf16
libc.src.math.fdimf16
libc.src.math.floorf16
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 34748ff5950ad..d94a40705b107 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -536,9 +536,11 @@ if(LIBC_TYPES_HAS_FLOAT16)
libc.src.math.canonicalizef16
libc.src.math.ceilf16
libc.src.math.copysignf16
+ libc.src.math.f16addf
libc.src.math.f16divf
libc.src.math.f16fmaf
libc.src.math.f16sqrtf
+ libc.src.math.f16subf
libc.src.math.fabsf16
libc.src.math.fdimf16
libc.src.math.floorf16
diff --git a/libc/docs/math/index.rst b/libc/docs/math/index.rst
index e05149d8e1dc9..6f2b6f01e190c 100644
--- a/libc/docs/math/index.rst
+++ b/libc/docs/math/index.rst
@@ -124,10 +124,14 @@ Basic Operations
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| dsub | N/A | N/A | | N/A | | 7.12.14.2 | F.10.11 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
+| f16add | |check| | | | N/A | | 7.12.14.1 | F.10.11 |
++------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| f16div | |check| | | | N/A | | 7.12.14.4 | F.10.11 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| f16fma | |check| | | | N/A | | 7.12.14.5 | F.10.11 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
+| f16sub | |check| | | | N/A | | 7.12.14.2 | F.10.11 |
++------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| fabs | |check| | |check| | |check| | |check| | |check| | 7.12.7.3 | F.10.4.3 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| fadd | N/A | | | N/A | | 7.12.14.1 | F.10.11 |
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index 651f49deef4c1..39ea8ff68bb4f 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -726,6 +726,10 @@ def StdC : StandardSpec<"stdc"> {
GuardedFunctionSpec<"setpayloadsigf16", RetValSpec<IntType>, [ArgSpec<Float16Ptr>, ArgSpec<Float16Type>], "LIBC_TYPES_HAS_FLOAT16">,
+ GuardedFunctionSpec<"f16addf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
+
+ GuardedFunctionSpec<"f16subf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
+
GuardedFunctionSpec<"f16divf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"f16sqrtf", RetValSpec<Float16Type>, [ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
diff --git a/libc/src/__support/FPUtil/dyadic_float.h b/libc/src/__support/FPUtil/dyadic_float.h
index 1e1bec676d444..fb1b22467f940 100644
--- a/libc/src/__support/FPUtil/dyadic_float.h
+++ b/libc/src/__support/FPUtil/dyadic_float.h
@@ -156,13 +156,13 @@ template <size_t Bits> struct DyadicFloat {
// d_lo is denormal, but the output is normal.
int scale_up_exponent = 1 - exp_lo;
T scale_up_factor =
- FPBits<T>::create_value(sign,
+ FPBits<T>::create_value(Sign::POS,
static_cast<output_bits_t>(
FPBits<T>::EXP_BIAS + scale_up_exponent),
IMPLICIT_MASK)
.get_val();
T scale_down_factor =
- FPBits<T>::create_value(sign,
+ FPBits<T>::create_value(Sign::POS,
static_cast<output_bits_t>(
FPBits<T>::EXP_BIAS - scale_up_exponent),
IMPLICIT_MASK)
diff --git a/libc/src/__support/FPUtil/generic/CMakeLists.txt b/libc/src/__support/FPUtil/generic/CMakeLists.txt
index 33b2564bfa087..5b8e09e5a47b4 100644
--- a/libc/src/__support/FPUtil/generic/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/generic/CMakeLists.txt
@@ -46,6 +46,25 @@ add_header_library(
libc.src.__support.macros.optimization
)
+add_header_library(
+ add_sub
+ HDRS
+ add_sub.h
+ DEPENDS
+ libc.hdr.errno_macros
+ libc.hdr.fenv_macros
+ libc.src.__support.CPP.algorithm
+ libc.src.__support.CPP.bit
+ libc.src.__support.CPP.type_traits
+ libc.src.__support.FPUtil.basic_operations
+ libc.src.__support.FPUtil.fenv_impl
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.dyadic_float
+ libc.src.__support.FPUtil.rounding_mode
+ libc.src.__support.macros.attributes
+ libc.src.__support.macros.optimization
+)
+
add_header_library(
div
HDRS
diff --git a/libc/src/__support/FPUtil/generic/add_sub.h b/libc/src/__support/FPUtil/generic/add_sub.h
new file mode 100644
index 0000000000000..6d640026e2927
--- /dev/null
+++ b/libc/src/__support/FPUtil/generic/add_sub.h
@@ -0,0 +1,206 @@
+//===-- Add and subtract IEEE 754 floating-point numbers --------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC___SUPPORT_FPUTIL_GENERIC_ADD_SUB_H
+#define LLVM_LIBC_SRC___SUPPORT_FPUTIL_GENERIC_ADD_SUB_H
+
+#include "hdr/errno_macros.h"
+#include "hdr/fenv_macros.h"
+#include "src/__support/CPP/algorithm.h"
+#include "src/__support/CPP/bit.h"
+#include "src/__support/CPP/type_traits.h"
+#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/FPUtil/FEnvImpl.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/dyadic_float.h"
+#include "src/__support/FPUtil/rounding_mode.h"
+#include "src/__support/macros/attributes.h"
+#include "src/__support/macros/optimization.h"
+
+namespace LIBC_NAMESPACE::fputil::generic {
+
+template <bool IsSub, typename OutType, typename InType>
+LIBC_INLINE cpp::enable_if_t<cpp::is_floating_point_v<OutType> &&
+ cpp::is_floating_point_v<InType> &&
+ sizeof(OutType) <= sizeof(InType),
+ OutType>
+add_or_sub(InType x, InType y) {
+ using OutFPBits = FPBits<OutType>;
+ using OutStorageType = typename OutFPBits::StorageType;
+ using InFPBits = FPBits<InType>;
+ using InStorageType = typename InFPBits::StorageType;
+
+ constexpr int GUARD_BITS_LEN = 3;
+ constexpr int RESULT_FRACTION_LEN = InFPBits::FRACTION_LEN + GUARD_BITS_LEN;
+ constexpr int RESULT_MANTISSA_LEN = RESULT_FRACTION_LEN + 1;
+
+ using DyadicFloat =
+ DyadicFloat<cpp::bit_ceil(static_cast<size_t>(RESULT_MANTISSA_LEN))>;
+
+ InFPBits x_bits(x);
+ InFPBits y_bits(y);
+
+ bool is_effectively_add = (x_bits.sign() == y_bits.sign()) ^ IsSub;
+
+ if (LIBC_UNLIKELY(x_bits.is_inf_or_nan() || y_bits.is_inf_or_nan() ||
+ x_bits.is_zero() || y_bits.is_zero())) {
+ if (x_bits.is_nan() || y_bits.is_nan()) {
+ if (x_bits.is_signaling_nan() || y_bits.is_signaling_nan())
+ raise_except_if_required(FE_INVALID);
+
+ if (x_bits.is_quiet_nan()) {
+ InStorageType x_payload = static_cast<InStorageType>(getpayload(x));
+ if ((x_payload & ~(OutFPBits::FRACTION_MASK >> 1)) == 0)
+ return OutFPBits::quiet_nan(x_bits.sign(),
+ static_cast<OutStorageType>(x_payload))
+ .get_val();
+ }
+
+ if (y_bits.is_quiet_nan()) {
+ InStorageType y_payload = static_cast<InStorageType>(getpayload(y));
+ if ((y_payload & ~(OutFPBits::FRACTION_MASK >> 1)) == 0)
+ return OutFPBits::quiet_nan(y_bits.sign(),
+ static_cast<OutStorageType>(y_payload))
+ .get_val();
+ }
+
+ return OutFPBits::quiet_nan().get_val();
+ }
+
+ if (x_bits.is_inf()) {
+ if (y_bits.is_inf()) {
+ if (!is_effectively_add) {
+ raise_except_if_required(FE_INVALID);
+ return OutFPBits::quiet_nan().get_val();
+ }
+
+ return OutFPBits::inf(x_bits.sign()).get_val();
+ }
+
+ return OutFPBits::inf(x_bits.sign()).get_val();
+ }
+
+ if (y_bits.is_inf())
+ return OutFPBits::inf(y_bits.sign()).get_val();
+
+ if (x_bits.is_zero()) {
+ if (y_bits.is_zero()) {
+ switch (quick_get_round()) {
+ case FE_DOWNWARD:
+ return OutFPBits::zero(Sign::NEG).get_val();
+ default:
+ return OutFPBits::zero(Sign::POS).get_val();
+ }
+ }
+
+ // volatile prevents Clang from converting tmp to OutType and then
+ // immediately back to InType before negating it, resulting in double
+ // rounding.
+ volatile InType tmp = y;
+ if constexpr (IsSub)
+ tmp = -tmp;
+ return static_cast<OutType>(tmp);
+ }
+
+ if (y_bits.is_zero()) {
+ volatile InType tmp = y;
+ if constexpr (IsSub)
+ tmp = -tmp;
+ return static_cast<OutType>(tmp);
+ }
+ }
+
+ InType x_abs = x_bits.abs().get_val();
+ InType y_abs = y_bits.abs().get_val();
+
+ if (x_abs == y_abs && !is_effectively_add) {
+ switch (quick_get_round()) {
+ case FE_DOWNWARD:
+ return OutFPBits::zero(Sign::NEG).get_val();
+ default:
+ return OutFPBits::zero(Sign::POS).get_val();
+ }
+ }
+
+ Sign result_sign = Sign::POS;
+
+ if (x_abs > y_abs) {
+ result_sign = x_bits.sign();
+ } else if (x_abs < y_abs) {
+ if (is_effectively_add)
+ result_sign = y_bits.sign();
+ else if (y_bits.is_pos())
+ result_sign = Sign::NEG;
+ } else if (is_effectively_add) {
+ result_sign = x_bits.sign();
+ }
+
+ InFPBits max_bits(cpp::max(x_abs, y_abs));
+ InFPBits min_bits(cpp::min(x_abs, y_abs));
+
+ InStorageType result_mant;
+
+ if (max_bits.is_subnormal()) {
+ // min_bits must be subnormal too.
+
+ if (is_effectively_add)
+ result_mant = max_bits.get_mantissa() + min_bits.get_mantissa();
+ else
+ result_mant = max_bits.get_mantissa() - min_bits.get_mantissa();
+
+ result_mant <<= GUARD_BITS_LEN;
+ } else {
+ InStorageType max_mant = max_bits.get_explicit_mantissa() << GUARD_BITS_LEN;
+ InStorageType min_mant = min_bits.get_explicit_mantissa() << GUARD_BITS_LEN;
+ int alignment =
+ max_bits.get_biased_exponent() - min_bits.get_biased_exponent();
+
+ InStorageType aligned_min_mant =
+ min_mant >> cpp::min(alignment, RESULT_MANTISSA_LEN);
+ bool aligned_min_mant_sticky;
+
+ if (alignment <= 3)
+ aligned_min_mant_sticky = false;
+ else if (alignment <= InFPBits::FRACTION_LEN + 3)
+ aligned_min_mant_sticky =
+ (min_mant << (InFPBits::STORAGE_LEN - alignment)) != 0;
+ else
+ aligned_min_mant_sticky = true;
+
+ if (is_effectively_add)
+ result_mant = max_mant + (aligned_min_mant | aligned_min_mant_sticky);
+ else
+ result_mant = max_mant - (aligned_min_mant | aligned_min_mant_sticky);
+ }
+
+ int result_exp = max_bits.get_exponent() - RESULT_FRACTION_LEN;
+ DyadicFloat result(result_sign, result_exp, result_mant);
+ return result.template as<OutType, /*ShouldSignalExceptions=*/true>();
+}
+
+template <typename OutType, typename InType>
+LIBC_INLINE cpp::enable_if_t<cpp::is_floating_point_v<OutType> &&
+ cpp::is_floating_point_v<InType> &&
+ sizeof(OutType) <= sizeof(InType),
+ OutType>
+add(InType x, InType y) {
+ return add_or_sub</*IsSub=*/false, OutType>(x, y);
+}
+
+template <typename OutType, typename InType>
+LIBC_INLINE cpp::enable_if_t<cpp::is_floating_point_v<OutType> &&
+ cpp::is_floating_point_v<InType> &&
+ sizeof(OutType) <= sizeof(InType),
+ OutType>
+sub(InType x, InType y) {
+ return add_or_sub</*IsSub=*/true, OutType>(x, y);
+}
+
+} // namespace LIBC_NAMESPACE::fputil::generic
+
+#endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_GENERIC_ADD_SUB_H
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index 711cbf8bbfdca..d3af54194b567 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -99,12 +99,16 @@ add_math_entrypoint_object(exp10f)
add_math_entrypoint_object(expm1)
add_math_entrypoint_object(expm1f)
+add_math_entrypoint_object(f16addf)
+
add_math_entrypoint_object(f16divf)
add_math_entrypoint_object(f16fmaf)
add_math_entrypoint_object(f16sqrtf)
+add_math_entrypoint_object(f16subf)
+
add_math_entrypoint_object(fabs)
add_math_entrypoint_object(fabsf)
add_math_entrypoint_object(fabsl)
diff --git a/libc/src/math/f16addf.h b/libc/src/math/f16addf.h
new file mode 100644
index 0000000000000..31d0e786584e6
--- /dev/null
+++ b/libc/src/math/f16addf.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for f16addf -----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_MATH_F16ADDF_H
+#define LLVM_LIBC_SRC_MATH_F16ADDF_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float16 f16addf(float x, float y);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_F16ADDF_H
diff --git a/libc/src/math/f16subf.h b/libc/src/math/f16subf.h
new file mode 100644
index 0000000000000..1d04a4c952d17
--- /dev/null
+++ b/libc/src/math/f16subf.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for f16subf -----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_MATH_F16SUBF_H
+#define LLVM_LIBC_SRC_MATH_F16SUBF_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float16 f16subf(float x, float y);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_F16SUBF_H
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 41a77c8710f6b..a143730aaf9bb 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -3754,6 +3754,32 @@ add_entrypoint_object(
-O3
)
+add_entrypoint_object(
+ f16addf
+ SRCS
+ f16addf.cpp
+ HDRS
+ ../f16addf.h
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.generic.add_sub
+ COMPILE_OPTIONS
+ -O3
+)
+
+add_entrypoint_object(
+ f16subf
+ SRCS
+ f16subf.cpp
+ HDRS
+ ../f16subf.h
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.generic.add_sub
+ COMPILE_OPTIONS
+ -O3
+)
+
add_entrypoint_object(
f16divf
SRCS
diff --git a/libc/src/math/generic/f16addf.cpp b/libc/src/math/generic/f16addf.cpp
new file mode 100644
index 0000000000000..f1761a193985d
--- /dev/null
+++ b/libc/src/math/generic/f16addf.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of f16addf function --------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/math/f16addf.h"
+#include "src/__support/FPUtil/generic/add_sub.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float16, f16addf, (float x, float y)) {
+ return fputil::generic::add<float16>(x, y);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/f16subf.cpp b/libc/src/math/generic/f16subf.cpp
new file mode 100644
index 0000000000000..e4532a456b7b8
--- /dev/null
+++ b/libc/src/math/generic/f16subf.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of f16subf function --------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/math/f16subf.h"
+#include "src/__support/FPUtil/generic/add_sub.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float16, f16subf, (float x, float y)) {
+ return fputil::generic::sub<float16>(x, y);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/test/src/math/AddTest.h b/libc/test/src/math/AddTest.h
new file mode 100644
index 0000000000000..df0ef66cfeefa
--- /dev/null
+++ b/libc/test/src/math/AddTest.h
@@ -0,0 +1,74 @@
+//===-- Utility class to test different flavors of float add ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_TEST_SRC_MATH_ADDTEST_H
+#define LLVM_LIBC_TEST_SRC_MATH_ADDTEST_H
+
+#include "test/UnitTest/FEnvSafeTest.h"
+#include "test/UnitTest/FPMatcher.h"
+#include "test/UnitTest/Test.h"
+#include "utils/MPFRWrapper/MPFRUtils.h"
+
+namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
+
+template <typename OutType, typename InType>
+class AddTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
+
+ struct InConstants {
+ DECLARE_SPECIAL_CONSTANTS(InType)
+ };
+
+ using InFPBits = typename InConstants::FPBits;
+ using InStorageType = typename InConstants::StorageType;
+
+ static constexpr InStorageType IN_MAX_NORMAL_U =
+ InFPBits::max_normal().uintval();
+ static constexpr InStorageType IN_MIN_NORMAL_U =
+ InFPBits::min_normal().uintval()...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/96787
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