[libc-commits] [libc] 10cd96d - [libc][math][c23] Add {frexp, ilogb, llogb, logb, modf}f16 C23 math functions (#94758)
via libc-commits
libc-commits at lists.llvm.org
Mon Jun 10 05:38:50 PDT 2024
Author: OverMighty
Date: 2024-06-10T08:38:47-04:00
New Revision: 10cd96dd3315ca466a56a2ace2627e44bdcba333
URL: https://github.com/llvm/llvm-project/commit/10cd96dd3315ca466a56a2ace2627e44bdcba333
DIFF: https://github.com/llvm/llvm-project/commit/10cd96dd3315ca466a56a2ace2627e44bdcba333.diff
LOG: [libc][math][c23] Add {frexp,ilogb,llogb,logb,modf}f16 C23 math functions (#94758)
Part of #93566.
Added:
libc/src/math/frexpf16.h
libc/src/math/generic/frexpf16.cpp
libc/src/math/generic/ilogbf16.cpp
libc/src/math/generic/llogbf16.cpp
libc/src/math/generic/logbf16.cpp
libc/src/math/generic/modff16.cpp
libc/src/math/ilogbf16.h
libc/src/math/llogbf16.h
libc/src/math/logbf16.h
libc/src/math/modff16.h
libc/test/src/math/smoke/frexpf16_test.cpp
libc/test/src/math/smoke/ilogbf16_test.cpp
libc/test/src/math/smoke/llogbf16_test.cpp
libc/test/src/math/smoke/logbf16_test.cpp
libc/test/src/math/smoke/modff16_test.cpp
Modified:
libc/config/linux/aarch64/entrypoints.txt
libc/config/linux/x86_64/entrypoints.txt
libc/docs/c23.rst
libc/docs/math/index.rst
libc/spec/spec.td
libc/spec/stdc.td
libc/src/__support/FPUtil/CMakeLists.txt
libc/src/__support/FPUtil/ManipulationFunctions.h
libc/src/__support/FPUtil/NormalFloat.h
libc/src/math/CMakeLists.txt
libc/src/math/generic/CMakeLists.txt
libc/test/src/math/smoke/CMakeLists.txt
libc/test/src/math/smoke/FrexpTest.h
libc/test/src/math/smoke/ILogbTest.h
libc/test/src/math/smoke/LogbTest.h
libc/test/src/math/smoke/ModfTest.h
Removed:
################################################################################
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index ee86822d96d91..50e0a6d1017e3 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -516,12 +516,17 @@ if(LIBC_TYPES_HAS_FLOAT16)
libc.src.math.fminimum_magf16
libc.src.math.fminimum_mag_numf16
libc.src.math.fminimum_numf16
+ libc.src.math.frexpf16
libc.src.math.fromfpf16
libc.src.math.fromfpxf16
+ libc.src.math.ilogbf16
+ libc.src.math.llogbf16
libc.src.math.llrintf16
libc.src.math.llroundf16
+ libc.src.math.logbf16
libc.src.math.lrintf16
libc.src.math.lroundf16
+ libc.src.math.modff16
libc.src.math.nanf16
libc.src.math.nearbyintf16
libc.src.math.nextafterf16
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index c4b3b1aece639..31ad0bc412836 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -549,12 +549,17 @@ if(LIBC_TYPES_HAS_FLOAT16)
libc.src.math.fminimum_mag_numf16
libc.src.math.fminimum_numf16
libc.src.math.fmodf16
+ libc.src.math.frexpf16
libc.src.math.fromfpf16
libc.src.math.fromfpxf16
+ libc.src.math.ilogbf16
+ libc.src.math.llogbf16
libc.src.math.llrintf16
libc.src.math.llroundf16
+ libc.src.math.logbf16
libc.src.math.lrintf16
libc.src.math.lroundf16
+ libc.src.math.modff16
libc.src.math.nanf16
libc.src.math.nearbyintf16
libc.src.math.nextafterf16
diff --git a/libc/docs/c23.rst b/libc/docs/c23.rst
index 71232cc004c70..fec9b24bbd581 100644
--- a/libc/docs/c23.rst
+++ b/libc/docs/c23.rst
@@ -50,7 +50,7 @@ Additions:
* issignaling
* issubnormal
* iszero
- * llogb*
+ * llogb* |check|
* pown*
* powr*
* rootn*
diff --git a/libc/docs/math/index.rst b/libc/docs/math/index.rst
index 43f63e910750f..3e122fb8bc26e 100644
--- a/libc/docs/math/index.rst
+++ b/libc/docs/math/index.rst
@@ -160,7 +160,7 @@ Basic Operations
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| fmul | N/A | |check| | | N/A | | 7.12.14.3 | F.10.11 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
-| frexp | |check| | |check| | |check| | | |check| | 7.12.6.7 | F.10.3.7 |
+| frexp | |check| | |check| | |check| | |check| | |check| | 7.12.6.7 | F.10.3.7 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| fromfp | |check| | |check| | |check| | |check| | |check| | 7.12.9.10 | F.10.6.10 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
@@ -168,23 +168,23 @@ Basic Operations
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| fsub | N/A | | | N/A | | 7.12.14.2 | F.10.11 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
-| ilogb | |check| | |check| | |check| | | |check| | 7.12.6.8 | F.10.3.8 |
+| ilogb | |check| | |check| | |check| | |check| | |check| | 7.12.6.8 | F.10.3.8 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| ldexp | |check| | |check| | |check| | | |check| | 7.12.6.9 | F.10.3.9 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
-| llogb | |check| | |check| | |check| | | |check| | 7.12.6.10 | F.10.3.10 |
+| llogb | |check| | |check| | |check| | |check| | |check| | 7.12.6.10 | F.10.3.10 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| llrint | |check| | |check| | |check| | |check| | |check| | 7.12.9.5 | F.10.6.5 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| llround | |check| | |check| | |check| | |check| | |check| | 7.12.9.7 | F.10.6.7 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
-| logb | |check| | |check| | |check| | | |check| | 7.12.6.17 | F.10.3.17 |
+| logb | |check| | |check| | |check| | |check| | |check| | 7.12.6.17 | F.10.3.17 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| lrint | |check| | |check| | |check| | |check| | |check| | 7.12.9.5 | F.10.6.5 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| lround | |check| | |check| | |check| | |check| | |check| | 7.12.9.7 | F.10.6.7 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
-| modf | |check| | |check| | |check| | | |check| | 7.12.6.18 | F.10.3.18 |
+| modf | |check| | |check| | |check| | |check| | |check| | 7.12.6.18 | F.10.3.18 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
| nan | |check| | |check| | |check| | |check| | |check| | 7.12.11.2 | F.10.8.2 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
diff --git a/libc/spec/spec.td b/libc/spec/spec.td
index 056a3143c5a71..7e1283e67fab2 100644
--- a/libc/spec/spec.td
+++ b/libc/spec/spec.td
@@ -115,6 +115,7 @@ def IntPtr : PtrType<IntType>;
def RestrictedIntPtr : RestrictedPtrType<IntType>;
def FloatPtr : PtrType<FloatType>;
def DoublePtr : PtrType<DoubleType>;
+def Float16Ptr : PtrType<Float16Type>;
def Float128Ptr : PtrType<Float128Type>;
def UnsignedCharPtr : PtrType<UnsignedCharType>;
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index ac16041e44c99..b5b6dbc481bd7 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -487,6 +487,7 @@ def StdC : StandardSpec<"stdc"> {
FunctionSpec<"frexp", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<IntPtr>]>,
FunctionSpec<"frexpf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<IntPtr>]>,
FunctionSpec<"frexpl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<IntPtr>]>,
+ GuardedFunctionSpec<"frexpf16", RetValSpec<Float16Type>, [ArgSpec<Float16Type>, ArgSpec<IntPtr>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"frexpf128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<IntPtr>], "LIBC_TYPES_HAS_FLOAT128">,
FunctionSpec<"fromfp", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>]>,
@@ -519,11 +520,13 @@ def StdC : StandardSpec<"stdc"> {
FunctionSpec<"ilogb", RetValSpec<IntType>, [ArgSpec<DoubleType>]>,
FunctionSpec<"ilogbf", RetValSpec<IntType>, [ArgSpec<FloatType>]>,
FunctionSpec<"ilogbl", RetValSpec<IntType>, [ArgSpec<LongDoubleType>]>,
+ GuardedFunctionSpec<"ilogbf16", RetValSpec<IntType>, [ArgSpec<Float16Type>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"ilogbf128", RetValSpec<IntType>, [ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT128">,
FunctionSpec<"llogb", RetValSpec<LongType>, [ArgSpec<DoubleType>]>,
FunctionSpec<"llogbf", RetValSpec<LongType>, [ArgSpec<FloatType>]>,
FunctionSpec<"llogbl", RetValSpec<LongType>, [ArgSpec<LongDoubleType>]>,
+ GuardedFunctionSpec<"llogbf16", RetValSpec<LongType>, [ArgSpec<Float16Type>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"llogbf128", RetValSpec<LongType>, [ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT128">,
FunctionSpec<"ldexp", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<IntType>]>,
@@ -546,11 +549,13 @@ def StdC : StandardSpec<"stdc"> {
FunctionSpec<"logb", RetValSpec<DoubleType>, [ArgSpec<DoubleType>]>,
FunctionSpec<"logbf", RetValSpec<FloatType>, [ArgSpec<FloatType>]>,
FunctionSpec<"logbl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>]>,
+ GuardedFunctionSpec<"logbf16", RetValSpec<Float16Type>, [ArgSpec<Float16Type>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"logbf128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT128">,
FunctionSpec<"modf", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<DoublePtr>]>,
FunctionSpec<"modff", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<FloatPtr>]>,
FunctionSpec<"modfl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoublePtr>]>,
+ GuardedFunctionSpec<"modff16", RetValSpec<Float16Type>, [ArgSpec<Float16Type>, ArgSpec<Float16Ptr>], "LIBC_TYPES_HAS_FLOAT16">,
GuardedFunctionSpec<"modff128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Ptr>], "LIBC_TYPES_HAS_FLOAT128">,
FunctionSpec<"cos", RetValSpec<DoubleType>, [ArgSpec<DoubleType>]>,
diff --git a/libc/src/__support/FPUtil/CMakeLists.txt b/libc/src/__support/FPUtil/CMakeLists.txt
index 01ca4254c7996..1744f8cf626f3 100644
--- a/libc/src/__support/FPUtil/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/CMakeLists.txt
@@ -217,6 +217,7 @@ add_header_library(
.nearest_integer_operations
.normal_float
libc.hdr.math_macros
+ libc.src.__support.CPP.algorithm
libc.src.__support.CPP.bit
libc.src.__support.CPP.limits
libc.src.__support.CPP.type_traits
diff --git a/libc/src/__support/FPUtil/ManipulationFunctions.h b/libc/src/__support/FPUtil/ManipulationFunctions.h
index a289c2ef70467..f695b83fb0b0b 100644
--- a/libc/src/__support/FPUtil/ManipulationFunctions.h
+++ b/libc/src/__support/FPUtil/ManipulationFunctions.h
@@ -16,6 +16,7 @@
#include "rounding_mode.h"
#include "hdr/math_macros.h"
+#include "src/__support/CPP/algorithm.h"
#include "src/__support/CPP/bit.h"
#include "src/__support/CPP/limits.h" // INT_MAX, INT_MIN
#include "src/__support/CPP/type_traits.h"
@@ -102,7 +103,7 @@ intlogb(U x) {
return IntLogbConstants<T>::T_MAX;
}
- DyadicFloat<FPBits<U>::STORAGE_LEN> normal(bits.get_val());
+ DyadicFloat<cpp::max(FPBits<U>::STORAGE_LEN, 32)> normal(bits.get_val());
int exponent = normal.get_unbiased_exponent();
// The C standard does not specify the return value when an exponent is
// out of int range. However, XSI conformance required that INT_MAX or
@@ -138,7 +139,7 @@ LIBC_INLINE constexpr T logb(T x) {
return FPBits<T>::inf().get_val();
}
- DyadicFloat<FPBits<T>::STORAGE_LEN> normal(bits.get_val());
+ DyadicFloat<cpp::max(FPBits<T>::STORAGE_LEN, 32)> normal(bits.get_val());
return static_cast<T>(normal.get_unbiased_exponent());
}
diff --git a/libc/src/__support/FPUtil/NormalFloat.h b/libc/src/__support/FPUtil/NormalFloat.h
index 8bc1fecd653bf..33529d5e9b80a 100644
--- a/libc/src/__support/FPUtil/NormalFloat.h
+++ b/libc/src/__support/FPUtil/NormalFloat.h
@@ -110,9 +110,11 @@ template <typename T> struct NormalFloat {
if (shift <= FPBits<T>::FRACTION_LEN + 1) {
// Generate a subnormal number. Might lead to loss of precision.
// We round to nearest and round halfway cases to even.
- const StorageType shift_out_mask = (StorageType(1) << shift) - 1;
+ const StorageType shift_out_mask =
+ static_cast<StorageType>(StorageType(1) << shift) - 1;
const StorageType shift_out_value = mantissa & shift_out_mask;
- const StorageType halfway_value = StorageType(1) << (shift - 1);
+ const StorageType halfway_value =
+ static_cast<StorageType>(StorageType(1) << (shift - 1));
result.set_biased_exponent(0);
result.set_mantissa(mantissa >> shift);
StorageType new_mantissa = result.get_mantissa();
@@ -135,7 +137,8 @@ template <typename T> struct NormalFloat {
}
}
- result.set_biased_exponent(exponent + FPBits<T>::EXP_BIAS);
+ result.set_biased_exponent(
+ static_cast<StorageType>(exponent + FPBits<T>::EXP_BIAS));
result.set_mantissa(mantissa);
return result.get_val();
}
@@ -155,7 +158,7 @@ template <typename T> struct NormalFloat {
// Normalize subnormal numbers.
if (bits.is_subnormal()) {
unsigned shift = evaluate_normalization_shift(bits.get_mantissa());
- mantissa = StorageType(bits.get_mantissa()) << shift;
+ mantissa = static_cast<StorageType>(bits.get_mantissa() << shift);
exponent = 1 - FPBits<T>::EXP_BIAS - shift;
} else {
exponent = bits.get_biased_exponent() - FPBits<T>::EXP_BIAS;
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index 68b8924460bf4..f8582d8d42683 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -191,6 +191,7 @@ add_math_entrypoint_object(fmodf128)
add_math_entrypoint_object(frexp)
add_math_entrypoint_object(frexpf)
add_math_entrypoint_object(frexpl)
+add_math_entrypoint_object(frexpf16)
add_math_entrypoint_object(frexpf128)
add_math_entrypoint_object(fromfp)
@@ -211,11 +212,13 @@ add_math_entrypoint_object(hypotf)
add_math_entrypoint_object(ilogb)
add_math_entrypoint_object(ilogbf)
add_math_entrypoint_object(ilogbl)
+add_math_entrypoint_object(ilogbf16)
add_math_entrypoint_object(ilogbf128)
add_math_entrypoint_object(llogb)
add_math_entrypoint_object(llogbf)
add_math_entrypoint_object(llogbl)
+add_math_entrypoint_object(llogbf16)
add_math_entrypoint_object(llogbf128)
add_math_entrypoint_object(ldexp)
@@ -238,6 +241,7 @@ add_math_entrypoint_object(logf)
add_math_entrypoint_object(logb)
add_math_entrypoint_object(logbf)
add_math_entrypoint_object(logbl)
+add_math_entrypoint_object(logbf16)
add_math_entrypoint_object(logbf128)
add_math_entrypoint_object(llrint)
@@ -267,6 +271,7 @@ add_math_entrypoint_object(lroundf128)
add_math_entrypoint_object(modf)
add_math_entrypoint_object(modff)
add_math_entrypoint_object(modfl)
+add_math_entrypoint_object(modff16)
add_math_entrypoint_object(modff128)
add_math_entrypoint_object(nan)
diff --git a/libc/src/math/frexpf16.h b/libc/src/math/frexpf16.h
new file mode 100644
index 0000000000000..dc1898cc5f702
--- /dev/null
+++ b/libc/src/math/frexpf16.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for frexpf16 ----------------------*- 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_FREXPF16_H
+#define LLVM_LIBC_SRC_MATH_FREXPF16_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float16 frexpf16(float16 x, int *exp);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_FREXPF16_H
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 4f94468939ed8..caaa0ac23dc7a 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -1301,6 +1301,19 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ frexpf16
+ SRCS
+ frexpf16.cpp
+ HDRS
+ ../frexpf16.h
+ COMPILE_OPTIONS
+ -O3
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
frexpf128
SRCS
@@ -1350,6 +1363,19 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ ilogbf16
+ SRCS
+ ilogbf16.cpp
+ HDRS
+ ../ilogbf16.h
+ COMPILE_OPTIONS
+ -O3
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
ilogbf128
SRCS
@@ -1399,6 +1425,19 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ llogbf16
+ SRCS
+ llogbf16.cpp
+ HDRS
+ ../llogbf16.h
+ COMPILE_OPTIONS
+ -O3
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
llogbf128
SRCS
@@ -1672,6 +1711,19 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ logbf16
+ SRCS
+ logbf16.cpp
+ HDRS
+ ../logbf16.h
+ COMPILE_OPTIONS
+ -O3
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
logbf128
SRCS
@@ -1681,6 +1733,7 @@ add_entrypoint_object(
COMPILE_OPTIONS
-O3
DEPENDS
+ libc.src.__support.macros.properties.types
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1720,6 +1773,19 @@ add_entrypoint_object(
-O3
)
+add_entrypoint_object(
+ modff16
+ SRCS
+ modff16.cpp
+ HDRS
+ ../modff16.h
+ DEPENDS
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.manipulation_functions
+ COMPILE_OPTIONS
+ -O3
+)
+
add_entrypoint_object(
modff128
SRCS
diff --git a/libc/src/math/generic/frexpf16.cpp b/libc/src/math/generic/frexpf16.cpp
new file mode 100644
index 0000000000000..2d29c07c7217d
--- /dev/null
+++ b/libc/src/math/generic/frexpf16.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of frexpf16 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/frexpf16.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float16, frexpf16, (float16 x, int *exp)) {
+ return fputil::frexp(x, *exp);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/ilogbf16.cpp b/libc/src/math/generic/ilogbf16.cpp
new file mode 100644
index 0000000000000..87e43f8a5ada3
--- /dev/null
+++ b/libc/src/math/generic/ilogbf16.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of ilogbf16 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/ilogbf16.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(int, ilogbf16, (float16 x)) {
+ return fputil::intlogb<int>(x);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/llogbf16.cpp b/libc/src/math/generic/llogbf16.cpp
new file mode 100644
index 0000000000000..b7a21b95604d7
--- /dev/null
+++ b/libc/src/math/generic/llogbf16.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of llogbf16 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/llogbf16.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(long, llogbf16, (float16 x)) {
+ return fputil::intlogb<long>(x);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/logbf16.cpp b/libc/src/math/generic/logbf16.cpp
new file mode 100644
index 0000000000000..52eb9ac6a342d
--- /dev/null
+++ b/libc/src/math/generic/logbf16.cpp
@@ -0,0 +1,17 @@
+//===-- Implementation of logbf16 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/logbf16.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float16, logbf16, (float16 x)) { return fputil::logb(x); }
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/modff16.cpp b/libc/src/math/generic/modff16.cpp
new file mode 100644
index 0000000000000..50cc5b5783ade
--- /dev/null
+++ b/libc/src/math/generic/modff16.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of modff16 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/modff16.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float16, modff16, (float16 x, float16 *iptr)) {
+ return fputil::modf(x, *iptr);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/ilogbf16.h b/libc/src/math/ilogbf16.h
new file mode 100644
index 0000000000000..4884a140cb4f6
--- /dev/null
+++ b/libc/src/math/ilogbf16.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for ilogbf16 ----------------------*- 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_ILOGBF16_H
+#define LLVM_LIBC_SRC_MATH_ILOGBF16_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+int ilogbf16(float16 x);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_ILOGBF16_H
diff --git a/libc/src/math/llogbf16.h b/libc/src/math/llogbf16.h
new file mode 100644
index 0000000000000..267ae410a31d8
--- /dev/null
+++ b/libc/src/math/llogbf16.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for llogbf16 ----------------------*- 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_LLOGBF16_H
+#define LLVM_LIBC_SRC_MATH_LLOGBF16_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+long llogbf16(float16 x);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_LLOGBF16_H
diff --git a/libc/src/math/logbf16.h b/libc/src/math/logbf16.h
new file mode 100644
index 0000000000000..8082e06c33d52
--- /dev/null
+++ b/libc/src/math/logbf16.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for logbf16 -----------------------*- 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_LOGBF16_H
+#define LLVM_LIBC_SRC_MATH_LOGBF16_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float16 logbf16(float16 x);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_LOGBF16_H
diff --git a/libc/src/math/modff16.h b/libc/src/math/modff16.h
new file mode 100644
index 0000000000000..a3017c5a92a64
--- /dev/null
+++ b/libc/src/math/modff16.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for modff16 -----------------------*- 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_MODFF16_H
+#define LLVM_LIBC_SRC_MATH_MODFF16_H
+
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE {
+
+float16 modff16(float16 x, float16 *iptr);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_MODFF16_H
diff --git a/libc/test/src/math/smoke/CMakeLists.txt b/libc/test/src/math/smoke/CMakeLists.txt
index cc0e00aeb1dd2..84aa76c0a0881 100644
--- a/libc/test/src/math/smoke/CMakeLists.txt
+++ b/libc/test/src/math/smoke/CMakeLists.txt
@@ -1091,6 +1091,18 @@ add_fp_unittest(
libc.src.math.frexpl
)
+add_fp_unittest(
+ frexpf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ frexpf16_test.cpp
+ HDRS
+ FrexpTest.h
+ DEPENDS
+ libc.src.math.frexpf16
+)
+
add_fp_unittest(
frexpf128_test
SUITE
@@ -1353,7 +1365,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.ilogb
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1368,7 +1380,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.ilogbf
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1383,7 +1395,22 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.ilogbl
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
+add_fp_unittest(
+ ilogbf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ ilogbf16_test.cpp
+ HDRS
+ ILogbTest.h
+ DEPENDS
+ libc.src.math.ilogbf16
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1398,7 +1425,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.ilogbf128
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1413,7 +1440,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.llogb
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1428,7 +1455,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.llogbf
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1443,7 +1470,22 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.llogbl
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
+add_fp_unittest(
+ llogbf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ llogbf16_test.cpp
+ HDRS
+ ILogbTest.h
+ DEPENDS
+ libc.src.math.llogbf16
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1458,7 +1500,7 @@ add_fp_unittest(
ILogbTest.h
DEPENDS
libc.src.math.llogbf128
- libc.src.__support.CPP.limits
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1529,8 +1571,11 @@ add_fp_unittest(
libc-math-smoke-tests
SRCS
logb_test.cpp
+ HDRS
+ LogbTest.h
DEPENDS
libc.src.math.logb
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1540,8 +1585,11 @@ add_fp_unittest(
libc-math-smoke-tests
SRCS
logbf_test.cpp
+ HDRS
+ LogbTest.h
DEPENDS
libc.src.math.logbf
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1555,6 +1603,21 @@ add_fp_unittest(
LogbTest.h
DEPENDS
libc.src.math.logbl
+ libc.src.__support.CPP.algorithm
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
+add_fp_unittest(
+ logbf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ logbf16_test.cpp
+ HDRS
+ LogbTest.h
+ DEPENDS
+ libc.src.math.logbf16
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1564,8 +1627,11 @@ add_fp_unittest(
libc-math-smoke-tests
SRCS
logbf128_test.cpp
+ HDRS
+ LogbTest.h
DEPENDS
libc.src.math.logbf128
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.manipulation_functions
)
@@ -1579,6 +1645,7 @@ add_fp_unittest(
ModfTest.h
DEPENDS
libc.src.math.modf
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.basic_operations
libc.src.__support.FPUtil.nearest_integer_operations
)
@@ -1593,6 +1660,7 @@ add_fp_unittest(
ModfTest.h
DEPENDS
libc.src.math.modff
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.basic_operations
libc.src.__support.FPUtil.nearest_integer_operations
)
@@ -1607,6 +1675,22 @@ add_fp_unittest(
ModfTest.h
DEPENDS
libc.src.math.modfl
+ libc.src.__support.CPP.algorithm
+ libc.src.__support.FPUtil.basic_operations
+ libc.src.__support.FPUtil.nearest_integer_operations
+)
+
+add_fp_unittest(
+ modff16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ modff16_test.cpp
+ HDRS
+ ModfTest.h
+ DEPENDS
+ libc.src.math.modff16
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.basic_operations
libc.src.__support.FPUtil.nearest_integer_operations
)
@@ -1621,6 +1705,7 @@ add_fp_unittest(
ModfTest.h
DEPENDS
libc.src.math.modff128
+ libc.src.__support.CPP.algorithm
libc.src.__support.FPUtil.basic_operations
libc.src.__support.FPUtil.nearest_integer_operations
)
diff --git a/libc/test/src/math/smoke/FrexpTest.h b/libc/test/src/math/smoke/FrexpTest.h
index e9e496422f732..fc2313a94ef09 100644
--- a/libc/test/src/math/smoke/FrexpTest.h
+++ b/libc/test/src/math/smoke/FrexpTest.h
@@ -6,7 +6,6 @@
//
//===----------------------------------------------------------------------===//
-#include "src/__support/FPUtil/BasicOperations.h"
#include "test/UnitTest/FEnvSafeTest.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
diff --git a/libc/test/src/math/smoke/ILogbTest.h b/libc/test/src/math/smoke/ILogbTest.h
index 05f906b69947b..3315ac2cbbc64 100644
--- a/libc/test/src/math/smoke/ILogbTest.h
+++ b/libc/test/src/math/smoke/ILogbTest.h
@@ -9,7 +9,7 @@
#ifndef LLVM_LIBC_TEST_SRC_MATH_ILOGBTEST_H
#define LLVM_LIBC_TEST_SRC_MATH_ILOGBTEST_H
-#include "src/__support/CPP/limits.h" // INT_MAX
+#include "src/__support/CPP/algorithm.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/ManipulationFunctions.h"
#include "test/UnitTest/FEnvSafeTest.h"
@@ -76,10 +76,12 @@ class LlvmLibcILogbTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
void test_subnormal_range(Func func) {
constexpr StorageType MIN_SUBNORMAL = FPBits::min_subnormal().uintval();
constexpr StorageType MAX_SUBNORMAL = FPBits::max_subnormal().uintval();
- constexpr StorageType COUNT = 10'001;
- constexpr StorageType STEP = (MAX_SUBNORMAL - MIN_SUBNORMAL) / COUNT;
+ constexpr int COUNT = 10'001;
+ constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(
+ static_cast<StorageType>((MAX_SUBNORMAL - MIN_SUBNORMAL) / COUNT),
+ StorageType(1));
for (StorageType v = MIN_SUBNORMAL; v <= MAX_SUBNORMAL; v += STEP) {
- FPBits x_bits = FPBits(v);
+ FPBits x_bits(v);
if (x_bits.is_zero() || x_bits.is_inf_or_nan())
continue;
@@ -94,10 +96,12 @@ class LlvmLibcILogbTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
void test_normal_range(Func func) {
constexpr StorageType MIN_NORMAL = FPBits::min_normal().uintval();
constexpr StorageType MAX_NORMAL = FPBits::max_normal().uintval();
- constexpr StorageType COUNT = 10'001;
- constexpr StorageType STEP = (MAX_NORMAL - MIN_NORMAL) / COUNT;
+ constexpr int COUNT = 10'001;
+ constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(
+ static_cast<StorageType>((MAX_NORMAL - MIN_NORMAL) / COUNT),
+ StorageType(1));
for (StorageType v = MIN_NORMAL; v <= MAX_NORMAL; v += STEP) {
- FPBits x_bits = FPBits(v);
+ FPBits x_bits(v);
if (x_bits.is_zero() || x_bits.is_inf_or_nan())
continue;
diff --git a/libc/test/src/math/smoke/LogbTest.h b/libc/test/src/math/smoke/LogbTest.h
index 4938fcf8f6f16..0bb6e12665b93 100644
--- a/libc/test/src/math/smoke/LogbTest.h
+++ b/libc/test/src/math/smoke/LogbTest.h
@@ -6,6 +6,7 @@
//
//===----------------------------------------------------------------------===//
+#include "src/__support/CPP/algorithm.h"
#include "src/__support/FPUtil/ManipulationFunctions.h"
#include "test/UnitTest/FEnvSafeTest.h"
#include "test/UnitTest/FPMatcher.h"
@@ -69,10 +70,12 @@ class LogbTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
void testRange(LogbFunc func) {
using StorageType = typename FPBits::StorageType;
- constexpr StorageType COUNT = 100'000;
- constexpr StorageType STEP = STORAGE_MAX / COUNT;
- for (StorageType i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
- FPBits x_bits = FPBits(v);
+ constexpr int COUNT = 100'000;
+ constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(
+ static_cast<StorageType>(STORAGE_MAX / COUNT), StorageType(1));
+ StorageType v = 0;
+ for (int i = 0; i <= COUNT; ++i, v += STEP) {
+ FPBits x_bits(v);
if (x_bits.is_zero() || x_bits.is_inf_or_nan())
continue;
diff --git a/libc/test/src/math/smoke/ModfTest.h b/libc/test/src/math/smoke/ModfTest.h
index 85db2d6d967b2..6226e5d55f40c 100644
--- a/libc/test/src/math/smoke/ModfTest.h
+++ b/libc/test/src/math/smoke/ModfTest.h
@@ -6,6 +6,7 @@
//
//===----------------------------------------------------------------------===//
+#include "src/__support/CPP/algorithm.h"
#include "src/__support/FPUtil/BasicOperations.h"
#include "src/__support/FPUtil/NearestIntegerOperations.h"
#include "test/UnitTest/FEnvSafeTest.h"
@@ -83,10 +84,12 @@ class ModfTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
}
void testRange(ModfFunc func) {
- constexpr StorageType COUNT = 100'000;
- constexpr StorageType STEP = STORAGE_MAX / COUNT;
- for (StorageType i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
- FPBits x_bits = FPBits(v);
+ constexpr int COUNT = 100'000;
+ constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(
+ static_cast<StorageType>(STORAGE_MAX / COUNT), StorageType(1));
+ StorageType v = 0;
+ for (int i = 0; i <= COUNT; ++i, v += STEP) {
+ FPBits x_bits(v);
if (x_bits.is_zero() || x_bits.is_inf_or_nan())
continue;
diff --git a/libc/test/src/math/smoke/frexpf16_test.cpp b/libc/test/src/math/smoke/frexpf16_test.cpp
new file mode 100644
index 0000000000000..4d5492c8cf0c0
--- /dev/null
+++ b/libc/test/src/math/smoke/frexpf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for frexpf16 --------------------------------------------===//
+//
+// 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 "FrexpTest.h"
+
+#include "src/math/frexpf16.h"
+
+LIST_FREXP_TESTS(float16, LIBC_NAMESPACE::frexpf16);
diff --git a/libc/test/src/math/smoke/ilogbf16_test.cpp b/libc/test/src/math/smoke/ilogbf16_test.cpp
new file mode 100644
index 0000000000000..e046709523202
--- /dev/null
+++ b/libc/test/src/math/smoke/ilogbf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for ilogbf16 --------------------------------------------===//
+//
+// 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 "ILogbTest.h"
+
+#include "src/math/ilogbf16.h"
+
+LIST_INTLOGB_TESTS(int, float16, LIBC_NAMESPACE::ilogbf16);
diff --git a/libc/test/src/math/smoke/llogbf16_test.cpp b/libc/test/src/math/smoke/llogbf16_test.cpp
new file mode 100644
index 0000000000000..8907681024b1b
--- /dev/null
+++ b/libc/test/src/math/smoke/llogbf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for llogbf16 --------------------------------------------===//
+//
+// 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 "ILogbTest.h"
+
+#include "src/math/llogbf16.h"
+
+LIST_INTLOGB_TESTS(long, float16, LIBC_NAMESPACE::llogbf16);
diff --git a/libc/test/src/math/smoke/logbf16_test.cpp b/libc/test/src/math/smoke/logbf16_test.cpp
new file mode 100644
index 0000000000000..cfc1a0521b339
--- /dev/null
+++ b/libc/test/src/math/smoke/logbf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for logbf16 ---------------------------------------------===//
+//
+// 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 "LogbTest.h"
+
+#include "src/math/logbf16.h"
+
+LIST_LOGB_TESTS(float16, LIBC_NAMESPACE::logbf16)
diff --git a/libc/test/src/math/smoke/modff16_test.cpp b/libc/test/src/math/smoke/modff16_test.cpp
new file mode 100644
index 0000000000000..7093377182306
--- /dev/null
+++ b/libc/test/src/math/smoke/modff16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for modff16 ---------------------------------------------===//
+//
+// 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 "ModfTest.h"
+
+#include "src/math/modff16.h"
+
+LIST_MODF_TESTS(float16, LIBC_NAMESPACE::modff16)
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