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[libc][math][c23] Add ufromfpxf16 C23 math function
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12 files changed

+125
-44
lines changed

12 files changed

+125
-44
lines changed

‎libc/config/linux/aarch64/entrypoints.txt

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@@ -514,6 +514,7 @@ if(LIBC_TYPES_HAS_FLOAT16)
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libc.src.math.roundevenf16
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libc.src.math.truncf16
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libc.src.math.ufromfpf16
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libc.src.math.ufromfpxf16
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)
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endif()
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‎libc/config/linux/x86_64/entrypoints.txt

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@@ -547,6 +547,7 @@ if(LIBC_TYPES_HAS_FLOAT16)
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libc.src.math.roundevenf16
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libc.src.math.truncf16
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libc.src.math.ufromfpf16
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libc.src.math.ufromfpxf16
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)
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endif()
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‎libc/docs/c23.rst

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@@ -58,6 +58,7 @@ Additions:
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* fromfp* |check|
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* ufromfp* |check|
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* fromfpx* |check|
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* ufromfpx* |check|
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* nextup*
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* nextdown*
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* canonicalize*

‎libc/docs/math/index.rst

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@@ -214,7 +214,7 @@ Basic Operations
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| ufromfp | |check| | |check| | |check| | |check| | |check| | 7.12.9.10 | F.10.6.10 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| ufromfpx | |check| | |check| | |check| | | |check| | 7.12.9.11 | F.10.6.11 |
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| ufromfpx | |check| | |check| | |check| | |check| | |check| | 7.12.9.11 | F.10.6.11 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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‎libc/spec/stdc.td

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@@ -494,7 +494,8 @@ def StdC : StandardSpec<"stdc"> {
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FunctionSpec<"ufromfpx", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>]>,
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FunctionSpec<"ufromfpxf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>]>,
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FunctionSpec<"ufromfpxl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>]>,
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GuardedFunctionSpec<"ufromfpxf128", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>], "LIBC_TYPES_HAS_FLOAT128">,
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GuardedFunctionSpec<"ufromfpxf16", RetValSpec<Float16Type>, [ArgSpec<Float16Type>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>], "LIBC_TYPES_HAS_FLOAT16">,
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GuardedFunctionSpec<"ufromfpxf128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<IntType>, ArgSpec<UnsignedIntType>], "LIBC_TYPES_HAS_FLOAT128">,
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FunctionSpec<"hypot", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>]>,
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FunctionSpec<"hypotf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<FloatType>]>,

‎libc/src/math/CMakeLists.txt

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@@ -355,4 +355,5 @@ add_math_entrypoint_object(ufromfpf128)
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add_math_entrypoint_object(ufromfpx)
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add_math_entrypoint_object(ufromfpxf)
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add_math_entrypoint_object(ufromfpxl)
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add_math_entrypoint_object(ufromfpxf16)
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add_math_entrypoint_object(ufromfpxf128)

‎libc/src/math/generic/CMakeLists.txt

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@@ -2901,6 +2901,19 @@ add_entrypoint_object(
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-O3
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)
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add_entrypoint_object(
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ufromfpxf16
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SRCS
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ufromfpxf16.cpp
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HDRS
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../ufromfpxf16.h
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DEPENDS
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libc.src.__support.macros.properties.types
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libc.src.__support.FPUtil.nearest_integer_operations
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COMPILE_OPTIONS
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-O3
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)
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add_entrypoint_object(
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ufromfpxf128
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SRCS

‎libc/src/math/generic/ufromfpxf16.cpp

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//===-- Implementation of ufromfpxf16 function ----------------------------===//
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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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#include "src/math/ufromfpxf16.h"
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#include "src/__support/FPUtil/NearestIntegerOperations.h"
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#include "src/__support/common.h"
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namespace LIBC_NAMESPACE {
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LLVM_LIBC_FUNCTION(float16, ufromfpxf16,
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(float16 x, int rnd, unsigned int width)) {
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return fputil::fromfpx</*IsSigned=*/false>(x, rnd, width);
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}
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} // namespace LIBC_NAMESPACE

‎libc/src/math/ufromfpxf16.h

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//===-- Implementation header for ufromfpxf16 -------------------*- 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_UFROMFPXF16_H
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#define LLVM_LIBC_SRC_MATH_UFROMFPXF16_H
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#include "src/__support/macros/properties/types.h"
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namespace LIBC_NAMESPACE {
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float16 ufromfpxf16(float16 x, int rnd, unsigned int width);
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} // namespace LIBC_NAMESPACE
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#endif // LLVM_LIBC_SRC_MATH_UFROMFPXF16_H

‎libc/test/src/math/smoke/CMakeLists.txt

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@@ -1286,6 +1286,18 @@ add_fp_unittest(
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libc.src.math.ufromfpxl
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)
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add_fp_unittest(
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ufromfpxf16_test
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SUITE
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libc-math-smoke-tests
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SRCS
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ufromfpxf16_test.cpp
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HDRS
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UfromfpxTest.h
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DEPENDS
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libc.src.math.ufromfpxf16
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)
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add_fp_unittest(
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ufromfpxf128_test
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SUITE

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