[libc-commits] [libc] [llvm] [libc][math] Refractor sinhf16 to Header only (PR #177337)
Anikesh Parashar via libc-commits
libc-commits at lists.llvm.org
Thu Jan 22 02:34:27 PST 2026
https://github.com/an1k3sh created https://github.com/llvm/llvm-project/pull/177337
Part of #147386
Separate issue hasn't been created for the task
>From 41e79a5cdb756a64f82f55be98b53da92359d83e Mon Sep 17 00:00:00 2001
From: Anikesh Parashar <anikeshparashar at gmail.com>
Date: Wed, 21 Jan 2026 17:18:45 +0530
Subject: [PATCH] Refractor sinhf16 ##147386
---
libc/shared/math.h | 1 +
libc/shared/math/sinhf16.h | 24 +++
libc/src/__support/math/CMakeLists.txt | 18 ++
libc/src/__support/math/sinhf16.h | 161 ++++++++++++++++++
libc/src/math/generic/CMakeLists.txt | 3 +
libc/src/math/generic/sinhf16.cpp | 141 +--------------
libc/test/shared/CMakeLists.txt | 1 +
libc/test/shared/shared_math_test.cpp | 1 +
.../llvm-project-overlay/libc/BUILD.bazel | 17 ++
9 files changed, 228 insertions(+), 139 deletions(-)
create mode 100644 libc/shared/math/sinhf16.h
create mode 100644 libc/src/__support/math/sinhf16.h
diff --git a/libc/shared/math.h b/libc/shared/math.h
index d58238703701d..612307e897043 100644
--- a/libc/shared/math.h
+++ b/libc/shared/math.h
@@ -79,5 +79,6 @@
#include "math/rsqrtf.h"
#include "math/rsqrtf16.h"
#include "math/sin.h"
+#include "math/sinhf16.h"
#endif // LLVM_LIBC_SHARED_MATH_H
diff --git a/libc/shared/math/sinhf16.h b/libc/shared/math/sinhf16.h
new file mode 100644
index 0000000000000..86f40c9e11377
--- /dev/null
+++ b/libc/shared/math/sinhf16.h
@@ -0,0 +1,24 @@
+//===-- Shared sinhf16 function ------------------------------------*- 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_SHARED_MATH_SINHF16_H
+#define LLVM_LIBC_SHARED_MATH_SINHF16_H
+
+#include "shared/libc_common.h"
+#include "src/__support/math/sinhf16.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+namespace shared {
+using math::sinhf16;
+} // namespace shared
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SHARED_MATH_SINHF16_H
\ No newline at end of file
diff --git a/libc/src/__support/math/CMakeLists.txt b/libc/src/__support/math/CMakeLists.txt
index bf1c4463b8066..21686729a9be1 100644
--- a/libc/src/__support/math/CMakeLists.txt
+++ b/libc/src/__support/math/CMakeLists.txt
@@ -1174,6 +1174,24 @@ add_header_library(
libc.src.__support.macros.optimization
)
+add_header_library(
+ sinhf16
+ HDRS
+ sinhf16.h
+ DEPENDS
+ libc.hdr.errno_macros
+ libc.hdr.fenv_macros
+ libc.src.__support.FPUtil.fenv_impl
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.except_value_utils
+ libc.src.__support.FPUtil.rounding_mode
+ libc.src.__support.common
+ libc.src.__support.macros.config
+ libc.src.__support.macros.optimization
+ libc.src.__support.math.expxf16_utils
+
+)
+
add_header_library(
dfmal
HDRS
diff --git a/libc/src/__support/math/sinhf16.h b/libc/src/__support/math/sinhf16.h
new file mode 100644
index 0000000000000..3a0e293b85ea8
--- /dev/null
+++ b/libc/src/__support/math/sinhf16.h
@@ -0,0 +1,161 @@
+//===-- Half-precision sinh(x) 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC___SUPPORT_MATH_SINHF16_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_SINHF16_H
+
+#include "hdr/errno_macros.h"
+#include "hdr/fenv_macros.h"
+#include "src/__support/FPUtil/FEnvImpl.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/except_value_utils.h"
+#include "src/__support/FPUtil/rounding_mode.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/optimization.h"
+#include "src/__support/math/expxf16_utils.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+namespace math {
+
+#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+static constexpr fputil::ExceptValues<float16, 17> SINHF16_EXCEPTS_POS = {{
+ // x = 0x1.714p-5, sinhf16(x) = 0x1.714p-5 (RZ)
+ {0x29c5U, 0x29c5U, 1U, 0U, 1U},
+ // x = 0x1.25p-4, sinhf16(x) = 0x1.25p-4 (RZ)
+ {0x2c94U, 0x2c94U, 1U, 0U, 1U},
+ // x = 0x1.f5p-4, sinhf16(x) = 0x1.f64p-4 (RZ)
+ {0x2fd4U, 0x2fd9U, 1U, 0U, 0U},
+ // x = 0x1.b1cp-3, sinhf16(x) = 0x1.b4cp-3 (RZ)
+ {0x32c7U, 0x32d3U, 1U, 0U, 1U},
+ // x = 0x1.6e8p-2, sinhf16(x) = 0x1.764p-2 (RZ)
+ {0x35baU, 0x35d9U, 1U, 0U, 1U},
+ // x = 0x1.6b4p-1, sinhf16(x) = 0x1.8a4p-1 (RZ)
+ {0x39adU, 0x3a29U, 1U, 0U, 1U},
+ // x = 0x1.a58p-1, sinhf16(x) = 0x1.d68p-1 (RZ)
+ {0x3a96U, 0x3b5aU, 1U, 0U, 1U},
+ // x = 0x1.574p+0, sinhf16(x) = 0x1.c78p+0 (RZ)
+ {0x3d5dU, 0x3f1eU, 1U, 0U, 1U},
+ // x = 0x1.648p+1, sinhf16(x) = 0x1.024p+3 (RZ)
+ {0x4192U, 0x4809U, 1U, 0U, 0U},
+ // x = 0x1.cdcp+1, sinhf16(x) = 0x1.26cp+4 (RZ)
+ {0x4337U, 0x4c9bU, 1U, 0U, 0U},
+ // x = 0x1.d0cp+1, sinhf16(x) = 0x1.2d8p+4 (RZ)
+ {0x4343U, 0x4cb6U, 1U, 0U, 1U},
+ // x = 0x1.018p+2, sinhf16(x) = 0x1.bfp+4 (RZ)
+ {0x4406U, 0x4efcU, 1U, 0U, 0U},
+ // x = 0x1.2fcp+2, sinhf16(x) = 0x1.cc4p+5 (RZ)
+ {0x44bfU, 0x5331U, 1U, 0U, 1U},
+ // x = 0x1.4ecp+2, sinhf16(x) = 0x1.75cp+6 (RZ)
+ {0x453bU, 0x55d7U, 1U, 0U, 0U},
+ // x = 0x1.8a4p+2, sinhf16(x) = 0x1.d94p+7 (RZ)
+ {0x4629U, 0x5b65U, 1U, 0U, 1U},
+ // x = 0x1.5fp+3, sinhf16(x) = 0x1.c54p+14 (RZ)
+ {0x497cU, 0x7715U, 1U, 0U, 1U},
+ // x = 0x1.3c8p+1, sinhf16(x) = 0x1.78ap+2 (RZ)
+ {0x40f2U, 0x45e2U, 1U, 0U, 1U},
+}};
+
+static constexpr fputil::ExceptValues<float16, 13> SINHF16_EXCEPTS_NEG = {{
+ // x = -0x1.714p-5, sinhf16(x) = -0x1.714p-5 (RZ)
+ {0xa9c5U, 0xa9c5U, 0U, 1U, 1U},
+ // x = -0x1.25p-4, sinhf16(x) = -0x1.25p-4 (RZ)
+ {0xac94U, 0xac94U, 0U, 1U, 1U},
+ // x = -0x1.f5p-4, sinhf16(x) = -0x1.f64p-4 (RZ)
+ {0xafd4U, 0xafd9U, 0U, 1U, 0U},
+ // x = -0x1.6e8p-2, sinhf16(x) = -0x1.764p-2 (RZ)
+ {0xb5baU, 0xb5d9U, 0U, 1U, 1U},
+ // x = -0x1.a58p-1, sinhf16(x) = -0x1.d68p-1 (RZ)
+ {0xba96U, 0xbb5aU, 0U, 1U, 1U},
+ // x = -0x1.cdcp+1, sinhf16(x) = -0x1.26cp+4 (RZ)
+ {0xc337U, 0xcc9bU, 0U, 1U, 0U},
+ // x = -0x1.d0cp+1, sinhf16(x) = -0x1.2d8p+4 (RZ)
+ {0xc343U, 0xccb6U, 0U, 1U, 1U},
+ // x = -0x1.018p+2, sinhf16(x) = -0x1.bfp+4 (RZ)
+ {0xc406U, 0xcefcU, 0U, 1U, 0U},
+ // x = -0x1.2fcp+2, sinhf16(x) = -0x1.cc4p+5 (RZ)
+ {0xc4bfU, 0xd331U, 0U, 1U, 1U},
+ // x = -0x1.4ecp+2, sinhf16(x) = -0x1.75cp+6 (RZ)
+ {0xc53bU, 0xd5d7U, 0U, 1U, 0U},
+ // x = -0x1.8a4p+2, sinhf16(x) = -0x1.d94p+7 (RZ)
+ {0xc629U, 0xdb65U, 0U, 1U, 1U},
+ // x = -0x1.5fp+3, sinhf16(x) = -0x1.c54p+14 (RZ)
+ {0xc97cU, 0xf715U, 0U, 1U, 1U},
+ // x = -0x1.3c8p+1, sinhf16(x) = -0x1.78ap+2 (RZ)
+ {0xc0f2U, 0xc5e2U, 0U, 1U, 1U},
+}};
+#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+
+static constexpr float16 sinhf16(float16 x) {
+ using namespace math::expxf16_internal;
+ using FPBits = fputil::FPBits<float16>;
+ FPBits x_bits(x);
+
+ uint16_t x_u = x_bits.uintval();
+ uint16_t x_abs = x_u & 0x7fffU;
+
+ // When |x| = 0, or -2^(-14) <= x <= -2^(-9), or |x| >= asinh(2^16), or x is
+ // NaN.
+ if (LIBC_UNLIKELY(x_abs == 0U || (x_u >= 0x8400U && x_u <= 0xa400U) ||
+ x_abs >= 0x49e5U)) {
+ // sinh(NaN) = NaN
+ if (x_bits.is_nan()) {
+ if (x_bits.is_signaling_nan()) {
+ fputil::raise_except_if_required(FE_INVALID);
+ return FPBits::quiet_nan().get_val();
+ }
+
+ return x;
+ }
+
+ // sinh(+/-0) = sinh(+/-0)
+ if (x_abs == 0U)
+ return FPBits::zero(x_bits.sign()).get_val();
+
+ // When |x| >= asinh(2^16).
+ if (x_abs >= 0x49e5U) {
+ // sinh(+/-inf) = +/-inf
+ if (x_bits.is_inf())
+ return FPBits::inf(x_bits.sign()).get_val();
+
+ int rounding_mode = fputil::quick_get_round();
+ if (rounding_mode == FE_TONEAREST ||
+ (x_bits.is_pos() && rounding_mode == FE_UPWARD) ||
+ (x_bits.is_neg() && rounding_mode == FE_DOWNWARD)) {
+ fputil::set_errno_if_required(ERANGE);
+ fputil::raise_except_if_required(FE_OVERFLOW | FE_INEXACT);
+ return FPBits::inf(x_bits.sign()).get_val();
+ }
+ return FPBits::max_normal(x_bits.sign()).get_val();
+ }
+
+ // When -2^(-14) <= x <= -2^(-9).
+ if (fputil::fenv_is_round_down())
+ return FPBits(static_cast<uint16_t>(x_u + 1)).get_val();
+ return FPBits(static_cast<uint16_t>(x_u)).get_val();
+ }
+
+#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+ if (x_bits.is_pos()) {
+ if (auto r = SINHF16_EXCEPTS_POS.lookup(x_u); LIBC_UNLIKELY(r.has_value()))
+ return r.value();
+ } else {
+ if (auto r = SINHF16_EXCEPTS_NEG.lookup(x_u); LIBC_UNLIKELY(r.has_value()))
+ return r.value();
+ }
+#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+
+ return eval_sinh_or_cosh</*IsSinh=*/true>(x);
+}
+
+} // namespace math
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC___SUPPORT_MATH_SINHF16_H
\ No newline at end of file
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index b578d1805f2a8..2a439478b6e21 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -4214,6 +4214,9 @@ add_entrypoint_object(
libc.src.__support.FPUtil.rounding_mode
libc.src.__support.macros.optimization
libc.src.__support.math.expxf16_utils
+ libc.src.__support.common
+ libc.src.__support.macros.config
+ libc.src.__support.math.sinhf16
)
add_entrypoint_object(
diff --git a/libc/src/math/generic/sinhf16.cpp b/libc/src/math/generic/sinhf16.cpp
index f6b5c9bea16b0..1dd15016fc818 100644
--- a/libc/src/math/generic/sinhf16.cpp
+++ b/libc/src/math/generic/sinhf16.cpp
@@ -7,147 +7,10 @@
//===----------------------------------------------------------------------===//
#include "src/math/sinhf16.h"
-#include "hdr/errno_macros.h"
-#include "hdr/fenv_macros.h"
-#include "src/__support/FPUtil/FEnvImpl.h"
-#include "src/__support/FPUtil/FPBits.h"
-#include "src/__support/FPUtil/except_value_utils.h"
-#include "src/__support/FPUtil/rounding_mode.h"
-#include "src/__support/common.h"
-#include "src/__support/macros/config.h"
-#include "src/__support/macros/optimization.h"
-#include "src/__support/math/expxf16_utils.h"
+#include "src/__support/math/sinhf16.h"
namespace LIBC_NAMESPACE_DECL {
-#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-static constexpr fputil::ExceptValues<float16, 17> SINHF16_EXCEPTS_POS = {{
- // x = 0x1.714p-5, sinhf16(x) = 0x1.714p-5 (RZ)
- {0x29c5U, 0x29c5U, 1U, 0U, 1U},
- // x = 0x1.25p-4, sinhf16(x) = 0x1.25p-4 (RZ)
- {0x2c94U, 0x2c94U, 1U, 0U, 1U},
- // x = 0x1.f5p-4, sinhf16(x) = 0x1.f64p-4 (RZ)
- {0x2fd4U, 0x2fd9U, 1U, 0U, 0U},
- // x = 0x1.b1cp-3, sinhf16(x) = 0x1.b4cp-3 (RZ)
- {0x32c7U, 0x32d3U, 1U, 0U, 1U},
- // x = 0x1.6e8p-2, sinhf16(x) = 0x1.764p-2 (RZ)
- {0x35baU, 0x35d9U, 1U, 0U, 1U},
- // x = 0x1.6b4p-1, sinhf16(x) = 0x1.8a4p-1 (RZ)
- {0x39adU, 0x3a29U, 1U, 0U, 1U},
- // x = 0x1.a58p-1, sinhf16(x) = 0x1.d68p-1 (RZ)
- {0x3a96U, 0x3b5aU, 1U, 0U, 1U},
- // x = 0x1.574p+0, sinhf16(x) = 0x1.c78p+0 (RZ)
- {0x3d5dU, 0x3f1eU, 1U, 0U, 1U},
- // x = 0x1.648p+1, sinhf16(x) = 0x1.024p+3 (RZ)
- {0x4192U, 0x4809U, 1U, 0U, 0U},
- // x = 0x1.cdcp+1, sinhf16(x) = 0x1.26cp+4 (RZ)
- {0x4337U, 0x4c9bU, 1U, 0U, 0U},
- // x = 0x1.d0cp+1, sinhf16(x) = 0x1.2d8p+4 (RZ)
- {0x4343U, 0x4cb6U, 1U, 0U, 1U},
- // x = 0x1.018p+2, sinhf16(x) = 0x1.bfp+4 (RZ)
- {0x4406U, 0x4efcU, 1U, 0U, 0U},
- // x = 0x1.2fcp+2, sinhf16(x) = 0x1.cc4p+5 (RZ)
- {0x44bfU, 0x5331U, 1U, 0U, 1U},
- // x = 0x1.4ecp+2, sinhf16(x) = 0x1.75cp+6 (RZ)
- {0x453bU, 0x55d7U, 1U, 0U, 0U},
- // x = 0x1.8a4p+2, sinhf16(x) = 0x1.d94p+7 (RZ)
- {0x4629U, 0x5b65U, 1U, 0U, 1U},
- // x = 0x1.5fp+3, sinhf16(x) = 0x1.c54p+14 (RZ)
- {0x497cU, 0x7715U, 1U, 0U, 1U},
- // x = 0x1.3c8p+1, sinhf16(x) = 0x1.78ap+2 (RZ)
- {0x40f2U, 0x45e2U, 1U, 0U, 1U},
-}};
-
-static constexpr fputil::ExceptValues<float16, 13> SINHF16_EXCEPTS_NEG = {{
- // x = -0x1.714p-5, sinhf16(x) = -0x1.714p-5 (RZ)
- {0xa9c5U, 0xa9c5U, 0U, 1U, 1U},
- // x = -0x1.25p-4, sinhf16(x) = -0x1.25p-4 (RZ)
- {0xac94U, 0xac94U, 0U, 1U, 1U},
- // x = -0x1.f5p-4, sinhf16(x) = -0x1.f64p-4 (RZ)
- {0xafd4U, 0xafd9U, 0U, 1U, 0U},
- // x = -0x1.6e8p-2, sinhf16(x) = -0x1.764p-2 (RZ)
- {0xb5baU, 0xb5d9U, 0U, 1U, 1U},
- // x = -0x1.a58p-1, sinhf16(x) = -0x1.d68p-1 (RZ)
- {0xba96U, 0xbb5aU, 0U, 1U, 1U},
- // x = -0x1.cdcp+1, sinhf16(x) = -0x1.26cp+4 (RZ)
- {0xc337U, 0xcc9bU, 0U, 1U, 0U},
- // x = -0x1.d0cp+1, sinhf16(x) = -0x1.2d8p+4 (RZ)
- {0xc343U, 0xccb6U, 0U, 1U, 1U},
- // x = -0x1.018p+2, sinhf16(x) = -0x1.bfp+4 (RZ)
- {0xc406U, 0xcefcU, 0U, 1U, 0U},
- // x = -0x1.2fcp+2, sinhf16(x) = -0x1.cc4p+5 (RZ)
- {0xc4bfU, 0xd331U, 0U, 1U, 1U},
- // x = -0x1.4ecp+2, sinhf16(x) = -0x1.75cp+6 (RZ)
- {0xc53bU, 0xd5d7U, 0U, 1U, 0U},
- // x = -0x1.8a4p+2, sinhf16(x) = -0x1.d94p+7 (RZ)
- {0xc629U, 0xdb65U, 0U, 1U, 1U},
- // x = -0x1.5fp+3, sinhf16(x) = -0x1.c54p+14 (RZ)
- {0xc97cU, 0xf715U, 0U, 1U, 1U},
- // x = -0x1.3c8p+1, sinhf16(x) = -0x1.78ap+2 (RZ)
- {0xc0f2U, 0xc5e2U, 0U, 1U, 1U},
-}};
-#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-
-LLVM_LIBC_FUNCTION(float16, sinhf16, (float16 x)) {
- using namespace math::expxf16_internal;
- using FPBits = fputil::FPBits<float16>;
- FPBits x_bits(x);
-
- uint16_t x_u = x_bits.uintval();
- uint16_t x_abs = x_u & 0x7fffU;
-
- // When |x| = 0, or -2^(-14) <= x <= -2^(-9), or |x| >= asinh(2^16), or x is
- // NaN.
- if (LIBC_UNLIKELY(x_abs == 0U || (x_u >= 0x8400U && x_u <= 0xa400U) ||
- x_abs >= 0x49e5U)) {
- // sinh(NaN) = NaN
- if (x_bits.is_nan()) {
- if (x_bits.is_signaling_nan()) {
- fputil::raise_except_if_required(FE_INVALID);
- return FPBits::quiet_nan().get_val();
- }
-
- return x;
- }
-
- // sinh(+/-0) = sinh(+/-0)
- if (x_abs == 0U)
- return FPBits::zero(x_bits.sign()).get_val();
-
- // When |x| >= asinh(2^16).
- if (x_abs >= 0x49e5U) {
- // sinh(+/-inf) = +/-inf
- if (x_bits.is_inf())
- return FPBits::inf(x_bits.sign()).get_val();
-
- int rounding_mode = fputil::quick_get_round();
- if (rounding_mode == FE_TONEAREST ||
- (x_bits.is_pos() && rounding_mode == FE_UPWARD) ||
- (x_bits.is_neg() && rounding_mode == FE_DOWNWARD)) {
- fputil::set_errno_if_required(ERANGE);
- fputil::raise_except_if_required(FE_OVERFLOW | FE_INEXACT);
- return FPBits::inf(x_bits.sign()).get_val();
- }
- return FPBits::max_normal(x_bits.sign()).get_val();
- }
-
- // When -2^(-14) <= x <= -2^(-9).
- if (fputil::fenv_is_round_down())
- return FPBits(static_cast<uint16_t>(x_u + 1)).get_val();
- return FPBits(static_cast<uint16_t>(x_u)).get_val();
- }
-
-#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
- if (x_bits.is_pos()) {
- if (auto r = SINHF16_EXCEPTS_POS.lookup(x_u); LIBC_UNLIKELY(r.has_value()))
- return r.value();
- } else {
- if (auto r = SINHF16_EXCEPTS_NEG.lookup(x_u); LIBC_UNLIKELY(r.has_value()))
- return r.value();
- }
-#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-
- return eval_sinh_or_cosh</*IsSinh=*/true>(x);
-}
+LLVM_LIBC_FUNCTION(float16, sinhf16, (float16 x)) { return math::sinhf16(x); }
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/test/shared/CMakeLists.txt b/libc/test/shared/CMakeLists.txt
index cfc2eda1aaec9..3d66bf2a9d6c9 100644
--- a/libc/test/shared/CMakeLists.txt
+++ b/libc/test/shared/CMakeLists.txt
@@ -75,4 +75,5 @@ add_fp_unittest(
libc.src.__support.math.rsqrtf
libc.src.__support.math.rsqrtf16
libc.src.__support.math.sin
+ libc.src.__support.math.sinhf16
)
diff --git a/libc/test/shared/shared_math_test.cpp b/libc/test/shared/shared_math_test.cpp
index 88e6ecc98a0a7..ea32ec05c389c 100644
--- a/libc/test/shared/shared_math_test.cpp
+++ b/libc/test/shared/shared_math_test.cpp
@@ -32,6 +32,7 @@ TEST(LlvmLibcSharedMathTest, AllFloat16) {
EXPECT_FP_EQ(0x0p+0f16, LIBC_NAMESPACE::shared::exp2m1f16(0.0f16));
EXPECT_FP_EQ(0x1p+0f16, LIBC_NAMESPACE::shared::expf16(0.0f16));
EXPECT_FP_EQ(0x0p+0f16, LIBC_NAMESPACE::shared::expm1f16(0.0f16));
+ EXPECT_FP_EQ(0x0p+0f16, LIBC_NAMESPACE::shared::sinhf16(0.0f16));
EXPECT_FP_EQ(float16(10.0), LIBC_NAMESPACE::shared::f16fma(2.0, 3.0, 4.0));
diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index 90b1da0e3376e..180073f5503eb 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -3321,6 +3321,23 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "__support_math_sinhf16",
+ hdrs = ["src/__support/math/sinhf16.h"],
+ deps = [
+ ":hdr_errno_macros",
+ ":hdr_fenv_macros",
+ ":__support_fputil_except_value_utils",
+ ":__support_fputil_fenv_impl",
+ ":__support_fputil_fp_bits",
+ ":__support_fputil_rounding_mode",
+ ":__support_common",
+ ":__support_macros_config",
+ ":__support_macros_optimization",
+ ":__support_math_expxf16_utils",
+ ],
+)
+
libc_support_library(
name = "__support_math_sinhfcoshf_utils",
hdrs = ["src/__support/math/sinhfcoshf_utils.h"],
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