From 8bc3f94a062776abfaf14201fba37bea5328bf92 Mon Sep 17 00:00:00 2001 From: Kito Cheng Date: Tue, 5 Jul 2022 17:46:31 +0800 Subject: [PATCH] soft-fp: Add fixhf[uns][di|si] and float[uns][di|si]hf Add more IEEE half conversion routines: - Convert 32-bit/64-bit integer to IEEE half. - Convert IEEE half to 32-bit/64-bit integer. They are required by RISC-V _Float16 support, tested with RISC-V GCC. --- soft-fp/fixhfdi.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/fixhfsi.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/fixunshfdi.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/fixunshfsi.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/floatdihf.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/floatsihf.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/floatundihf.c | 45 +++++++++++++++++++++++++++++++++++++++++++ soft-fp/floatunsihf.c | 45 +++++++++++++++++++++++++++++++++++++++++++ 8 files changed, 360 insertions(+) create mode 100644 soft-fp/fixhfdi.c create mode 100644 soft-fp/fixhfsi.c create mode 100644 soft-fp/fixunshfdi.c create mode 100644 soft-fp/fixunshfsi.c create mode 100644 soft-fp/floatdihf.c create mode 100644 soft-fp/floatsihf.c create mode 100644 soft-fp/floatundihf.c create mode 100644 soft-fp/floatunsihf.c diff --git a/soft-fp/fixhfdi.c b/soft-fp/fixhfdi.c new file mode 100644 index 0000000000..630a1e3c5f --- /dev/null +++ b/soft-fp/fixhfdi.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a IEEE half to 64bit signed integer + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +DItype +__fixhfdi (HFtype a) +{ + FP_DECL_EX; + FP_DECL_H (A); + UDItype r; + + FP_INIT_EXCEPTIONS; + FP_UNPACK_RAW_H (A, a); + FP_TO_INT_H (r, A, DI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixhfsi.c b/soft-fp/fixhfsi.c new file mode 100644 index 0000000000..4699a75533 --- /dev/null +++ b/soft-fp/fixhfsi.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a IEEE half to 32bit signed integer + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +SItype +__fixhfsi (HFtype a) +{ + FP_DECL_EX; + FP_DECL_H (A); + USItype r; + + FP_INIT_EXCEPTIONS; + FP_UNPACK_RAW_H (A, a); + FP_TO_INT_H (r, A, SI_BITS, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunshfdi.c b/soft-fp/fixunshfdi.c new file mode 100644 index 0000000000..3ca9c1aee4 --- /dev/null +++ b/soft-fp/fixunshfdi.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE half to 64bit unsigned integer + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +UDItype +__fixunshfdi (HFtype a) +{ + FP_DECL_EX; + FP_DECL_H (A); + UDItype r; + + FP_INIT_EXCEPTIONS; + FP_UNPACK_RAW_H (A, a); + FP_TO_INT_H (r, A, DI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunshfsi.c b/soft-fp/fixunshfsi.c new file mode 100644 index 0000000000..66dd6996ba --- /dev/null +++ b/soft-fp/fixunshfsi.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert IEEE half to 32bit unsigned integer + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +USItype +__fixunshfsi (HFtype a) +{ + FP_DECL_EX; + FP_DECL_H (A); + USItype r; + + FP_INIT_EXCEPTIONS; + FP_UNPACK_RAW_H (A, a); + FP_TO_INT_H (r, A, SI_BITS, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/floatdihf.c b/soft-fp/floatdihf.c new file mode 100644 index 0000000000..284a516cb9 --- /dev/null +++ b/soft-fp/floatdihf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE half + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +HFtype +__floatdihf (DItype i) +{ + FP_DECL_EX; + FP_DECL_H (A); + HFtype a; + + FP_INIT_ROUNDMODE; + FP_FROM_INT_H (A, i, DI_BITS, UDItype); + FP_PACK_RAW_H (a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatsihf.c b/soft-fp/floatsihf.c new file mode 100644 index 0000000000..2caa11d99c --- /dev/null +++ b/soft-fp/floatsihf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE half + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +HFtype +__floatsihf (SItype i) +{ + FP_DECL_EX; + FP_DECL_H (A); + HFtype a; + + FP_INIT_ROUNDMODE; + FP_FROM_INT_H (A, i, SI_BITS, USItype); + FP_PACK_RAW_H (a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatundihf.c b/soft-fp/floatundihf.c new file mode 100644 index 0000000000..f325a8099e --- /dev/null +++ b/soft-fp/floatundihf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 64bit unsigned integer to IEEE half. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +HFtype +__floatundihf (UDItype i) +{ + FP_DECL_EX; + FP_DECL_H (A); + HFtype a; + + FP_INIT_ROUNDMODE; + FP_FROM_INT_H (A, i, DI_BITS, UDItype); + FP_PACK_RAW_H (a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatunsihf.c b/soft-fp/floatunsihf.c new file mode 100644 index 0000000000..8d690a038f --- /dev/null +++ b/soft-fp/floatunsihf.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Convert a 32bit unsigned integer to IEEE half. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "half.h" + +HFtype +__floatunsihf (USItype i) +{ + FP_DECL_EX; + FP_DECL_H (A); + HFtype a; + + FP_INIT_ROUNDMODE; + FP_FROM_INT_H (A, i, SI_BITS, USItype); + FP_PACK_RAW_H (a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +}