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[libc][math][c23] Add f16{add,sub}{,l,f128} C23 math functions (#97072)
Part of #93566.
1 parent 4b28b3f commit 4e56724

31 files changed

+605
-2
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‎libc/config/linux/aarch64/entrypoints.txt‎

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@@ -508,12 +508,14 @@ if(LIBC_TYPES_HAS_FLOAT16)
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libc.src.math.canonicalizef16
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libc.src.math.ceilf16
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libc.src.math.copysignf16
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libc.src.math.f16add
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libc.src.math.f16addf
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libc.src.math.f16div
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libc.src.math.f16divf
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libc.src.math.f16fmaf
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libc.src.math.f16sqrt
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libc.src.math.f16sqrtf
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libc.src.math.f16sub
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libc.src.math.f16subf
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libc.src.math.fabsf16
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libc.src.math.fdimf16

‎libc/config/linux/x86_64/entrypoints.txt‎

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@@ -538,7 +538,9 @@ if(LIBC_TYPES_HAS_FLOAT16)
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libc.src.math.canonicalizef16
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libc.src.math.ceilf16
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libc.src.math.copysignf16
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libc.src.math.f16add
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libc.src.math.f16addf
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libc.src.math.f16addl
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libc.src.math.f16div
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libc.src.math.f16divf
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libc.src.math.f16divl
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libc.src.math.f16sqrt
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libc.src.math.f16sqrtf
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libc.src.math.f16sqrtl
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libc.src.math.f16sub
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libc.src.math.f16subf
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libc.src.math.f16subl
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libc.src.math.fabsf16
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libc.src.math.fdimf16
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libc.src.math.floorf16
@@ -601,9 +605,11 @@ if(LIBC_TYPES_HAS_FLOAT16)
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if(LIBC_TYPES_HAS_FLOAT128)
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list(APPEND TARGET_LIBM_ENTRYPOINTS
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# math.h C23 mixed _Float16 and _Float128 entrypoints
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libc.src.math.f16addf128
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libc.src.math.f16divf128
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libc.src.math.f16fmaf128
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libc.src.math.f16sqrtf128
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libc.src.math.f16subf128
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)
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endif()
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endif()

‎libc/docs/math/index.rst‎

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@@ -124,13 +124,13 @@ Basic Operations
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| dsub | N/A | N/A | | N/A | | 7.12.14.2 | F.10.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| f16add | |check|\* | | | N/A | | 7.12.14.1 | F.10.11 |
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| f16add | |check|\* | |check|\* | |check|\* | N/A | |check| | 7.12.14.1 | F.10.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| f16div | |check|\* | |check|\* | |check|\* | N/A | |check| | 7.12.14.4 | F.10.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| f16fma | |check| | |check| | |check| | N/A | |check| | 7.12.14.5 | F.10.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| f16sub | |check|\* | | | N/A | | 7.12.14.2 | F.10.11 |
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| f16sub | |check|\* | |check|\* | |check|\* | N/A | |check| | 7.12.14.2 | F.10.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| fabs | |check| | |check| | |check| | |check| | |check| | 7.12.7.3 | F.10.4.3 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+

‎libc/spec/llvm_libc_ext.td‎

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@@ -57,9 +57,13 @@ def LLVMLibcExt : StandardSpec<"llvm_libc_ext"> {
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[], // Types
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[], // Enumerations
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[
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GuardedFunctionSpec<"f16add", RetValSpec<Float16Type>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16addf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16addl", RetValSpec<Float16Type>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16sub", RetValSpec<Float16Type>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16subf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16subl", RetValSpec<Float16Type>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16div", RetValSpec<Float16Type>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16divf", RetValSpec<Float16Type>, [ArgSpec<FloatType>, ArgSpec<FloatType>], "LIBC_TYPES_HAS_FLOAT16">,

‎libc/spec/stdc.td‎

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@@ -729,6 +729,10 @@ def StdC : StandardSpec<"stdc"> {
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GuardedFunctionSpec<"setpayloadsigf16", RetValSpec<IntType>, [ArgSpec<Float16Ptr>, ArgSpec<Float16Type>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"f16addf128", RetValSpec<Float16Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT16_AND_FLOAT128">,
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GuardedFunctionSpec<"f16subf128", RetValSpec<Float16Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT16_AND_FLOAT128">,
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GuardedFunctionSpec<"f16divf128", RetValSpec<Float16Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT16_AND_FLOAT128">,
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GuardedFunctionSpec<"f16sqrtf128", RetValSpec<Float16Type>, [ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT16_AND_FLOAT128">,

‎libc/src/math/CMakeLists.txt‎

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@@ -99,7 +99,10 @@ add_math_entrypoint_object(exp10f)
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add_math_entrypoint_object(expm1)
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add_math_entrypoint_object(expm1f)
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add_math_entrypoint_object(f16add)
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add_math_entrypoint_object(f16addf)
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add_math_entrypoint_object(f16addl)
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add_math_entrypoint_object(f16addf128)
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add_math_entrypoint_object(f16div)
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add_math_entrypoint_object(f16divf)
@@ -116,7 +119,10 @@ add_math_entrypoint_object(f16sqrtf)
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add_math_entrypoint_object(f16sqrtl)
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add_math_entrypoint_object(f16sqrtf128)
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add_math_entrypoint_object(f16sub)
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add_math_entrypoint_object(f16subf)
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add_math_entrypoint_object(f16subl)
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add_math_entrypoint_object(f16subf128)
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add_math_entrypoint_object(fabs)
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add_math_entrypoint_object(fabsf)

‎libc/src/math/f16add.h‎

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//===-- Implementation header for f16add ------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_SRC_MATH_F16ADD_H
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#define LLVM_LIBC_SRC_MATH_F16ADD_H
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#include "src/__support/macros/properties/types.h"
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namespace LIBC_NAMESPACE {
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float16 f16add(double x, double y);
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} // namespace LIBC_NAMESPACE
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#endif // LLVM_LIBC_SRC_MATH_F16ADD_H

‎libc/src/math/f16addf128.h‎

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//===-- Implementation header for f16addf128 --------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_SRC_MATH_F16ADDF128_H
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#define LLVM_LIBC_SRC_MATH_F16ADDF128_H
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#include "src/__support/macros/properties/types.h"
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namespace LIBC_NAMESPACE {
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float16 f16addf128(float128 x, float128 y);
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} // namespace LIBC_NAMESPACE
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#endif // LLVM_LIBC_SRC_MATH_F16ADDF128_H

‎libc/src/math/f16addl.h‎

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//===-- Implementation header for f16addl -----------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_SRC_MATH_F16ADDL_H
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#define LLVM_LIBC_SRC_MATH_F16ADDL_H
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#include "src/__support/macros/properties/types.h"
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namespace LIBC_NAMESPACE {
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float16 f16addl(long double x, long double y);
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} // namespace LIBC_NAMESPACE
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#endif // LLVM_LIBC_SRC_MATH_F16ADDL_H

‎libc/src/math/f16sub.h‎

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//===-- Implementation header for f16sub ------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_SRC_MATH_F16SUB_H
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#define LLVM_LIBC_SRC_MATH_F16SUB_H
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#include "src/__support/macros/properties/types.h"
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namespace LIBC_NAMESPACE {
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float16 f16sub(double x, double y);
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} // namespace LIBC_NAMESPACE
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#endif // LLVM_LIBC_SRC_MATH_F16SUB_H

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