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-rw-r--r--libc/src/__support/math/CMakeLists.txt27
-rw-r--r--libc/src/__support/math/cosf16.h106
-rw-r--r--libc/src/__support/math/sincosf16_utils.h (renamed from libc/src/math/generic/sincosf16_utils.h)6
-rw-r--r--libc/src/math/CMakeLists.txt5
-rw-r--r--libc/src/math/bf16fma.h21
-rw-r--r--libc/src/math/bf16fmaf.h21
-rw-r--r--libc/src/math/bf16fmaf128.h21
-rw-r--r--libc/src/math/bf16fmal.h21
-rw-r--r--libc/src/math/generic/CMakeLists.txt95
-rw-r--r--libc/src/math/generic/bf16fma.cpp21
-rw-r--r--libc/src/math/generic/bf16fmaf.cpp21
-rw-r--r--libc/src/math/generic/bf16fmaf128.cpp22
-rw-r--r--libc/src/math/generic/bf16fmal.cpp22
-rw-r--r--libc/src/math/generic/cosf16.cpp81
-rw-r--r--libc/src/math/generic/cospif16.cpp3
-rw-r--r--libc/src/math/generic/sinf16.cpp3
-rw-r--r--libc/src/math/generic/sinpif16.cpp3
-rw-r--r--libc/src/math/generic/tanf16.cpp3
-rw-r--r--libc/src/math/generic/tanpif16.cpp3
19 files changed, 391 insertions, 114 deletions
diff --git a/libc/src/__support/math/CMakeLists.txt b/libc/src/__support/math/CMakeLists.txt
index 2cd064591e97..f4a8ee0fbb41 100644
--- a/libc/src/__support/math/CMakeLists.txt
+++ b/libc/src/__support/math/CMakeLists.txt
@@ -391,6 +391,23 @@ add_header_library(
)
add_header_library(
+ cosf16
+ HDRS
+ cosf16.h
+ DEPENDS
+ .sincosf16_utils
+ libc.hdr.errno_macros
+ libc.hdr.fenv_macros
+ libc.src.__support.FPUtil.cast
+ libc.src.__support.FPUtil.fenv_impl
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.except_value_utils
+ libc.src.__support.FPUtil.multiply_add
+ libc.src.__support.macros.optimization
+ libc.src.__support.macros.properties.types
+)
+
+add_header_library(
erff
HDRS
erff.h
@@ -699,3 +716,13 @@ add_header_library(
libc.src.__support.FPUtil.polyeval
libc.src.__support.common
)
+
+add_header_library(
+ sincosf16_utils
+ HDRS
+ sincosf16_utils.h
+ DEPENDS
+ libc.src.__support.FPUtil.polyeval
+ libc.src.__support.FPUtil.nearest_integer
+ libc.src.__support.common
+)
diff --git a/libc/src/__support/math/cosf16.h b/libc/src/__support/math/cosf16.h
new file mode 100644
index 000000000000..50c9a8f765c2
--- /dev/null
+++ b/libc/src/__support/math/cosf16.h
@@ -0,0 +1,106 @@
+//===-- Implementation header for cosf16 ------------------------*- 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_MATH_COSF16_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_COSF16_H
+
+#include "include/llvm-libc-macros/float16-macros.h"
+
+#ifdef LIBC_TYPES_HAS_FLOAT16
+
+#include "sincosf16_utils.h"
+#include "src/__support/FPUtil/FEnvImpl.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/cast.h"
+#include "src/__support/FPUtil/except_value_utils.h"
+#include "src/__support/FPUtil/multiply_add.h"
+#include "src/__support/macros/optimization.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+namespace math {
+
+LIBC_INLINE static constexpr float16 cosf16(float16 x) {
+#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+ constexpr size_t N_EXCEPTS = 4;
+
+ constexpr fputil::ExceptValues<float16, N_EXCEPTS> COSF16_EXCEPTS{{
+ // (input, RZ output, RU offset, RD offset, RN offset)
+ {0x2b7c, 0x3bfc, 1, 0, 1},
+ {0x4ac1, 0x38b5, 1, 0, 0},
+ {0x5c49, 0xb8c6, 0, 1, 0},
+ {0x7acc, 0xa474, 0, 1, 0},
+ }};
+#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+
+ using namespace sincosf16_internal;
+ using FPBits = fputil::FPBits<float16>;
+ FPBits xbits(x);
+
+ uint16_t x_u = xbits.uintval();
+ uint16_t x_abs = x_u & 0x7fff;
+ float xf = x;
+
+ // Range reduction:
+ // For |x| > pi/32, we perform range reduction as follows:
+ // Find k and y such that:
+ // x = (k + y) * pi/32
+ // k is an integer, |y| < 0.5
+ //
+ // This is done by performing:
+ // k = round(x * 32/pi)
+ // y = x * 32/pi - k
+ //
+ // Once k and y are computed, we then deduce the answer by the cosine of sum
+ // formula:
+ // cos(x) = cos((k + y) * pi/32)
+ // = cos(k * pi/32) * cos(y * pi/32) -
+ // sin(k * pi/32) * sin(y * pi/32)
+
+#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+ // Handle exceptional values
+ if (auto r = COSF16_EXCEPTS.lookup(x_abs); LIBC_UNLIKELY(r.has_value()))
+ return r.value();
+#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
+
+ // cos(+/-0) = 1
+ if (LIBC_UNLIKELY(x_abs == 0U))
+ return fputil::cast<float16>(1.0f);
+
+ // cos(+/-inf) = NaN, and cos(NaN) = NaN
+ if (xbits.is_inf_or_nan()) {
+ if (xbits.is_signaling_nan()) {
+ fputil::raise_except_if_required(FE_INVALID);
+ return FPBits::quiet_nan().get_val();
+ }
+
+ if (xbits.is_inf()) {
+ fputil::set_errno_if_required(EDOM);
+ fputil::raise_except_if_required(FE_INVALID);
+ }
+
+ return x + FPBits::quiet_nan().get_val();
+ }
+
+ float sin_k = 0.0f, cos_k = 0.0f, sin_y = 0.0f, cosm1_y = 0.0f;
+ sincosf16_eval(xf, sin_k, cos_k, sin_y, cosm1_y);
+ // Since, cosm1_y = cos_y - 1, therefore:
+ // cos(x) = cos_k * cos_y - sin_k * sin_y
+ // = cos_k * (cos_y - 1 + 1) - sin_k * sin_y
+ // = cos_k * cosm1_y - sin_k * sin_y + cos_k
+ return fputil::cast<float16>(fputil::multiply_add(
+ cos_k, cosm1_y, fputil::multiply_add(-sin_k, sin_y, cos_k)));
+}
+
+} // namespace math
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LIBC_TYPES_HAS_FLOAT16
+
+#endif // LLVM_LIBC_SRC___SUPPORT_MATH_COSF16_H
diff --git a/libc/src/math/generic/sincosf16_utils.h b/libc/src/__support/math/sincosf16_utils.h
index 05cab09d2089..74f21fd0a9dc 100644
--- a/libc/src/math/generic/sincosf16_utils.h
+++ b/libc/src/__support/math/sincosf16_utils.h
@@ -16,6 +16,8 @@
namespace LIBC_NAMESPACE_DECL {
+namespace sincosf16_internal {
+
// Lookup table for sin(k * pi / 32) with k = 0, ..., 63.
// Table is generated with Sollya as follows:
// > display = hexadecimmal;
@@ -66,7 +68,7 @@ LIBC_INLINE int32_t range_reduction_sincosf16(float x, float &y) {
return static_cast<int32_t>(kd);
}
-static LIBC_INLINE void sincosf16_poly_eval(int32_t k, float y, float &sin_k,
+LIBC_INLINE static void sincosf16_poly_eval(int32_t k, float y, float &sin_k,
float &cos_k, float &sin_y,
float &cosm1_y) {
@@ -107,6 +109,8 @@ LIBC_INLINE void sincospif16_eval(float xf, float &sin_k, float &cos_k,
sincosf16_poly_eval(k, y, sin_k, cos_k, sin_y, cosm1_y);
}
+} // namespace sincosf16_internal
+
} // namespace LIBC_NAMESPACE_DECL
#endif // LLVM_LIBC_SRC_MATH_GENERIC_SINCOSF16_UTILS_H
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index 2cf5ae5eab72..8db5901afa9c 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -584,6 +584,11 @@ add_math_entrypoint_object(bf16divf)
add_math_entrypoint_object(bf16divl)
add_math_entrypoint_object(bf16divf128)
+add_math_entrypoint_object(bf16fma)
+add_math_entrypoint_object(bf16fmaf)
+add_math_entrypoint_object(bf16fmal)
+add_math_entrypoint_object(bf16fmaf128)
+
add_math_entrypoint_object(bf16mul)
add_math_entrypoint_object(bf16mulf)
add_math_entrypoint_object(bf16mull)
diff --git a/libc/src/math/bf16fma.h b/libc/src/math/bf16fma.h
new file mode 100644
index 000000000000..aa54956ef478
--- /dev/null
+++ b/libc/src/math/bf16fma.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for bf16fma -----------------------*- 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_BF16FMA_H
+#define LLVM_LIBC_SRC_MATH_BF16FMA_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 bf16fma(double x, double y, double z);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_BF16FMA_H
diff --git a/libc/src/math/bf16fmaf.h b/libc/src/math/bf16fmaf.h
new file mode 100644
index 000000000000..e8582bd6dff5
--- /dev/null
+++ b/libc/src/math/bf16fmaf.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for bf16fmaf ----------------------*- 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_BF16FMAF_H
+#define LLVM_LIBC_SRC_MATH_BF16FMAF_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 bf16fmaf(float x, float y, float z);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_BF16FMAF_H
diff --git a/libc/src/math/bf16fmaf128.h b/libc/src/math/bf16fmaf128.h
new file mode 100644
index 000000000000..4215e54c82ff
--- /dev/null
+++ b/libc/src/math/bf16fmaf128.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for bf16fmaf128 -------------------*- 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_BF16FMAF128_H
+#define LLVM_LIBC_SRC_MATH_BF16FMAF128_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 bf16fmaf128(float128 x, float128 y, float128 z);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_BF16FMAF128_H
diff --git a/libc/src/math/bf16fmal.h b/libc/src/math/bf16fmal.h
new file mode 100644
index 000000000000..b92f17b7ee8d
--- /dev/null
+++ b/libc/src/math/bf16fmal.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for bf16fmal ----------------------*- 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_BF16FMAL_H
+#define LLVM_LIBC_SRC_MATH_BF16FMAL_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 bf16fmal(long double x, long double y, long double z);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_BF16FMAL_H
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 70e5bf682ed9..e12bee4ab8f4 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -278,16 +278,6 @@ add_entrypoint_object(
libc.src.__support.FPUtil.generic.add_sub
)
-add_header_library(
- sincosf16_utils
- HDRS
- sincosf16_utils.h
- DEPENDS
- libc.src.__support.FPUtil.polyeval
- libc.src.__support.FPUtil.nearest_integer
- libc.src.__support.common
-)
-
add_entrypoint_object(
cos
SRCS
@@ -315,16 +305,7 @@ add_entrypoint_object(
HDRS
../cosf16.h
DEPENDS
- .sincosf16_utils
- libc.hdr.errno_macros
- libc.hdr.fenv_macros
- libc.src.__support.FPUtil.cast
- libc.src.__support.FPUtil.fenv_impl
- libc.src.__support.FPUtil.fp_bits
- libc.src.__support.FPUtil.except_value_utils
- libc.src.__support.FPUtil.multiply_add
- libc.src.__support.macros.optimization
- libc.src.__support.macros.properties.types
+ libc.src.__support.math.cosf16
)
add_entrypoint_object(
@@ -349,7 +330,6 @@ add_entrypoint_object(
HDRS
../cospif16.h
DEPENDS
- .sincosf16_utils
libc.hdr.errno_macros
libc.hdr.fenv_macros
libc.src.__support.FPUtil.cast
@@ -357,6 +337,7 @@ add_entrypoint_object(
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.multiply_add
libc.src.__support.macros.optimization
+ libc.src.__support.math.sincosf16_utils
)
add_entrypoint_object(
@@ -405,7 +386,6 @@ add_entrypoint_object(
HDRS
../sinf16.h
DEPENDS
- .sincosf16_utils
libc.hdr.errno_macros
libc.hdr.fenv_macros
libc.src.__support.FPUtil.cast
@@ -415,6 +395,7 @@ add_entrypoint_object(
libc.src.__support.FPUtil.multiply_add
libc.src.__support.macros.optimization
libc.src.__support.macros.properties.types
+ libc.src.__support.math.sincosf16_utils
COMPILE_OPTIONS
${libc_opt_high_flag}
)
@@ -482,7 +463,6 @@ add_entrypoint_object(
HDRS
../sinpif16.h
DEPENDS
- .sincosf16_utils
libc.hdr.errno_macros
libc.hdr.fenv_macros
libc.src.__support.FPUtil.cast
@@ -490,6 +470,7 @@ add_entrypoint_object(
libc.src.__support.FPUtil.fp_bits
libc.src.__support.FPUtil.multiply_add
libc.src.__support.macros.optimization
+ libc.src.__support.math.sincosf16_utils
)
add_entrypoint_object(
@@ -538,7 +519,6 @@ add_entrypoint_object(
HDRS
../tanf16.h
DEPENDS
- .sincosf16_utils
libc.hdr.errno_macros
libc.hdr.fenv_macros
libc.src.__support.FPUtil.cast
@@ -548,6 +528,7 @@ add_entrypoint_object(
libc.src.__support.FPUtil.multiply_add
libc.src.__support.macros.optimization
libc.src.__support.macros.properties.types
+ libc.src.__support.math.sincosf16_utils
)
add_entrypoint_object(
@@ -572,7 +553,6 @@ add_entrypoint_object(
HDRS
../tanpif16.h
DEPENDS
- .sincosf16_utils
libc.hdr.errno_macros
libc.hdr.fenv_macros
libc.src.__support.FPUtil.cast
@@ -581,6 +561,7 @@ add_entrypoint_object(
libc.src.__support.FPUtil.except_value_utils
libc.src.__support.FPUtil.multiply_add
libc.src.__support.macros.optimization
+ libc.src.__support.math.sincosf16_utils
)
add_entrypoint_object(
@@ -5106,15 +5087,57 @@ add_entrypoint_object(
)
add_entrypoint_object(
- bf16sub
+ bf16fma
SRCS
- bf16sub.cpp
+ bf16fma.cpp
HDRS
- ../bf16sub.h
+ ../bf16fma.h
DEPENDS
libc.src.__support.common
libc.src.__support.FPUtil.bfloat16
- libc.src.__support.FPUtil.generic.add_sub
+ libc.src.__support.FPUtil.fma
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+)
+
+add_entrypoint_object(
+ bf16fmaf
+ SRCS
+ bf16fmaf.cpp
+ HDRS
+ ../bf16fmaf.h
+ DEPENDS
+ libc.src.__support.common
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.fma
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+)
+
+add_entrypoint_object(
+ bf16fmal
+ SRCS
+ bf16fmal.cpp
+ HDRS
+ ../bf16fmal.h
+ DEPENDS
+ libc.src.__support.common
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.fma
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+)
+
+add_entrypoint_object(
+ bf16fmaf128
+ SRCS
+ bf16fmaf128.cpp
+ HDRS
+ ../bf16fmaf128.h
+ DEPENDS
+ libc.src.__support.common
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.fma
libc.src.__support.macros.config
libc.src.__support.macros.properties.types
)
@@ -5176,6 +5199,20 @@ add_entrypoint_object(
)
add_entrypoint_object(
+ bf16sub
+ SRCS
+ bf16sub.cpp
+ HDRS
+ ../bf16sub.h
+ DEPENDS
+ libc.src.__support.common
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.generic.add_sub
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+)
+
+add_entrypoint_object(
bf16subf
SRCS
bf16subf.cpp
diff --git a/libc/src/math/generic/bf16fma.cpp b/libc/src/math/generic/bf16fma.cpp
new file mode 100644
index 000000000000..0f0fe8658dde
--- /dev/null
+++ b/libc/src/math/generic/bf16fma.cpp
@@ -0,0 +1,21 @@
+//===-- Implementation of bf16fma 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/bf16fma.h"
+#include "src/__support/FPUtil/FMA.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, bf16fma, (double x, double y, double z)) {
+ return fputil::fma<bfloat16>(x, y, z);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/bf16fmaf.cpp b/libc/src/math/generic/bf16fmaf.cpp
new file mode 100644
index 000000000000..739691cc5011
--- /dev/null
+++ b/libc/src/math/generic/bf16fmaf.cpp
@@ -0,0 +1,21 @@
+//===-- Implementation of bf16fmaf 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/bf16fmaf.h"
+#include "src/__support/FPUtil/FMA.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, bf16fmaf, (float x, float y, float z)) {
+ return fputil::fma<bfloat16>(x, y, z);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/bf16fmaf128.cpp b/libc/src/math/generic/bf16fmaf128.cpp
new file mode 100644
index 000000000000..a29a0b0b2727
--- /dev/null
+++ b/libc/src/math/generic/bf16fmaf128.cpp
@@ -0,0 +1,22 @@
+//===-- Implementation of bf16fmaf128 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/bf16fmaf128.h"
+#include "src/__support/FPUtil/FMA.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, bf16fmaf128,
+ (float128 x, float128 y, float128 z)) {
+ return fputil::fma<bfloat16>(x, y, z);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/bf16fmal.cpp b/libc/src/math/generic/bf16fmal.cpp
new file mode 100644
index 000000000000..f31ec6904760
--- /dev/null
+++ b/libc/src/math/generic/bf16fmal.cpp
@@ -0,0 +1,22 @@
+//===-- Implementation of bf16fmal 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/bf16fmal.h"
+
+#include "src/__support/FPUtil/FMA.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, bf16fmal,
+ (long double x, long double y, long double z)) {
+ return fputil::fma<bfloat16>(x, y, z);
+}
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/cosf16.cpp b/libc/src/math/generic/cosf16.cpp
index 99bb03eb7142..031c3e131d97 100644
--- a/libc/src/math/generic/cosf16.cpp
+++ b/libc/src/math/generic/cosf16.cpp
@@ -7,87 +7,10 @@
//===----------------------------------------------------------------------===//
#include "src/math/cosf16.h"
-#include "hdr/errno_macros.h"
-#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
-#include "src/__support/FPUtil/FEnvImpl.h"
-#include "src/__support/FPUtil/FPBits.h"
-#include "src/__support/FPUtil/cast.h"
-#include "src/__support/FPUtil/except_value_utils.h"
-#include "src/__support/FPUtil/multiply_add.h"
-#include "src/__support/macros/optimization.h"
+#include "src/__support/math/cosf16.h"
namespace LIBC_NAMESPACE_DECL {
-#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-constexpr size_t N_EXCEPTS = 4;
-
-constexpr fputil::ExceptValues<float16, N_EXCEPTS> COSF16_EXCEPTS{{
- // (input, RZ output, RU offset, RD offset, RN offset)
- {0x2b7c, 0x3bfc, 1, 0, 1},
- {0x4ac1, 0x38b5, 1, 0, 0},
- {0x5c49, 0xb8c6, 0, 1, 0},
- {0x7acc, 0xa474, 0, 1, 0},
-}};
-#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-
-LLVM_LIBC_FUNCTION(float16, cosf16, (float16 x)) {
- using FPBits = fputil::FPBits<float16>;
- FPBits xbits(x);
-
- uint16_t x_u = xbits.uintval();
- uint16_t x_abs = x_u & 0x7fff;
- float xf = x;
-
- // Range reduction:
- // For |x| > pi/32, we perform range reduction as follows:
- // Find k and y such that:
- // x = (k + y) * pi/32
- // k is an integer, |y| < 0.5
- //
- // This is done by performing:
- // k = round(x * 32/pi)
- // y = x * 32/pi - k
- //
- // Once k and y are computed, we then deduce the answer by the cosine of sum
- // formula:
- // cos(x) = cos((k + y) * pi/32)
- // = cos(k * pi/32) * cos(y * pi/32) -
- // sin(k * pi/32) * sin(y * pi/32)
-
-#ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
- // Handle exceptional values
- if (auto r = COSF16_EXCEPTS.lookup(x_abs); LIBC_UNLIKELY(r.has_value()))
- return r.value();
-#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
-
- // cos(+/-0) = 1
- if (LIBC_UNLIKELY(x_abs == 0U))
- return fputil::cast<float16>(1.0f);
-
- // cos(+/-inf) = NaN, and cos(NaN) = NaN
- if (xbits.is_inf_or_nan()) {
- if (xbits.is_signaling_nan()) {
- fputil::raise_except_if_required(FE_INVALID);
- return FPBits::quiet_nan().get_val();
- }
-
- if (xbits.is_inf()) {
- fputil::set_errno_if_required(EDOM);
- fputil::raise_except_if_required(FE_INVALID);
- }
-
- return x + FPBits::quiet_nan().get_val();
- }
-
- float sin_k, cos_k, sin_y, cosm1_y;
- sincosf16_eval(xf, sin_k, cos_k, sin_y, cosm1_y);
- // Since, cosm1_y = cos_y - 1, therefore:
- // cos(x) = cos_k * cos_y - sin_k * sin_y
- // = cos_k * (cos_y - 1 + 1) - sin_k * sin_y
- // = cos_k * cosm1_y - sin_k * sin_y + cos_k
- return fputil::cast<float16>(fputil::multiply_add(
- cos_k, cosm1_y, fputil::multiply_add(-sin_k, sin_y, cos_k)));
-}
+LLVM_LIBC_FUNCTION(float16, cosf16, (float16 x)) { return math::cosf16(x); }
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/cospif16.cpp b/libc/src/math/generic/cospif16.cpp
index 9dc25920d5cf..c99285b25c10 100644
--- a/libc/src/math/generic/cospif16.cpp
+++ b/libc/src/math/generic/cospif16.cpp
@@ -9,16 +9,17 @@
#include "src/math/cospif16.h"
#include "hdr/errno_macros.h"
#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/cast.h"
#include "src/__support/FPUtil/multiply_add.h"
#include "src/__support/macros/optimization.h"
+#include "src/__support/math/sincosf16_utils.h"
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(float16, cospif16, (float16 x)) {
+ using namespace sincosf16_internal;
using FPBits = typename fputil::FPBits<float16>;
FPBits xbits(x);
diff --git a/libc/src/math/generic/sinf16.cpp b/libc/src/math/generic/sinf16.cpp
index 28debbd52a9a..2b579202ea11 100644
--- a/libc/src/math/generic/sinf16.cpp
+++ b/libc/src/math/generic/sinf16.cpp
@@ -9,13 +9,13 @@
#include "src/math/sinf16.h"
#include "hdr/errno_macros.h"
#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/cast.h"
#include "src/__support/FPUtil/except_value_utils.h"
#include "src/__support/FPUtil/multiply_add.h"
#include "src/__support/macros/optimization.h"
+#include "src/__support/math/sincosf16_utils.h"
namespace LIBC_NAMESPACE_DECL {
@@ -32,6 +32,7 @@ constexpr fputil::ExceptValues<float16, N_EXCEPTS> SINF16_EXCEPTS{{
#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
LLVM_LIBC_FUNCTION(float16, sinf16, (float16 x)) {
+ using namespace sincosf16_internal;
using FPBits = fputil::FPBits<float16>;
FPBits xbits(x);
diff --git a/libc/src/math/generic/sinpif16.cpp b/libc/src/math/generic/sinpif16.cpp
index 68af484a6c5d..311e6f989ebf 100644
--- a/libc/src/math/generic/sinpif16.cpp
+++ b/libc/src/math/generic/sinpif16.cpp
@@ -9,15 +9,16 @@
#include "src/math/sinpif16.h"
#include "hdr/errno_macros.h"
#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/cast.h"
#include "src/__support/FPUtil/multiply_add.h"
+#include "src/__support/math/sincosf16_utils.h"
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(float16, sinpif16, (float16 x)) {
+ using namespace sincosf16_internal;
using FPBits = typename fputil::FPBits<float16>;
FPBits xbits(x);
diff --git a/libc/src/math/generic/tanf16.cpp b/libc/src/math/generic/tanf16.cpp
index 229f4a363670..20323a88f352 100644
--- a/libc/src/math/generic/tanf16.cpp
+++ b/libc/src/math/generic/tanf16.cpp
@@ -9,13 +9,13 @@
#include "src/math/tanf16.h"
#include "hdr/errno_macros.h"
#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/cast.h"
#include "src/__support/FPUtil/except_value_utils.h"
#include "src/__support/FPUtil/multiply_add.h"
#include "src/__support/macros/optimization.h"
+#include "src/__support/math/sincosf16_utils.h"
namespace LIBC_NAMESPACE_DECL {
@@ -37,6 +37,7 @@ constexpr fputil::ExceptValues<float16, N_EXCEPTS> TANF16_EXCEPTS{{
#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
LLVM_LIBC_FUNCTION(float16, tanf16, (float16 x)) {
+ using namespace sincosf16_internal;
using FPBits = fputil::FPBits<float16>;
FPBits xbits(x);
diff --git a/libc/src/math/generic/tanpif16.cpp b/libc/src/math/generic/tanpif16.cpp
index 792d405b1bb9..b137b09860f7 100644
--- a/libc/src/math/generic/tanpif16.cpp
+++ b/libc/src/math/generic/tanpif16.cpp
@@ -9,13 +9,13 @@
#include "src/math/tanpif16.h"
#include "hdr/errno_macros.h"
#include "hdr/fenv_macros.h"
-#include "sincosf16_utils.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/__support/FPUtil/cast.h"
#include "src/__support/FPUtil/except_value_utils.h"
#include "src/__support/FPUtil/multiply_add.h"
#include "src/__support/macros/optimization.h"
+#include "src/__support/math/sincosf16_utils.h"
namespace LIBC_NAMESPACE_DECL {
@@ -39,6 +39,7 @@ constexpr fputil::ExceptValues<float16, N_EXCEPTS> TANPIF16_EXCEPTS{{
#endif // !LIBC_MATH_HAS_SKIP_ACCURATE_PASS
LLVM_LIBC_FUNCTION(float16, tanpif16, (float16 x)) {
+ using namespace sincosf16_internal;
using FPBits = typename fputil::FPBits<float16>;
FPBits xbits(x);
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-01 18:51:25 +0000