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- /* Machine description for AArch64 architecture.
- Copyright (C) 2009-2022 Free Software Foundation, Inc.
- Contributed by ARM Ltd.
- This file is part of GCC.
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
- GCC 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 General Public License
- for more details.
- Under Section 7 of GPL version 3, you are granted additional
- permissions described in the GCC Runtime Library Exception, version
- 3.1, as published by the Free Software Foundation.
- You should have received a copy of the GNU General Public License and
- a copy of the GCC Runtime Library Exception along with this program;
- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- <http://www.gnu.org/licenses/>. */
- #define _FP_W_TYPE_SIZE 64
- #define _FP_W_TYPE unsigned long long
- #define _FP_WS_TYPE signed long long
- #define _FP_I_TYPE long long
- typedef int TItype __attribute__ ((mode (TI)));
- typedef unsigned int UTItype __attribute__ ((mode (TI)));
- #define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))
- /* The type of the result of a floating point comparison. This must
- match __libgcc_cmp_return__ in GCC for the target. */
- typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
- #define CMPtype __gcc_CMPtype
- #define _FP_MUL_MEAT_Q(R,X,Y) \
- _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
- #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
- #define _FP_NANFRAC_H ((_FP_QNANBIT_H << 1) - 1)
- #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
- #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1)
- #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1
- #define _FP_NANSIGN_H 0
- #define _FP_NANSIGN_S 0
- #define _FP_NANSIGN_D 0
- #define _FP_NANSIGN_Q 0
- #define _FP_KEEPNANFRACP 1
- #define _FP_QNANNEGATEDP 0
- /* This appears to be in line with the VFP conventions in the v7-a
- ARM-ARM. Need to check with the v8 version. */
- #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
- do { \
- if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
- && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
- { \
- R##_s = Y##_s; \
- _FP_FRAC_COPY_##wc(R,Y); \
- } \
- else \
- { \
- R##_s = X##_s; \
- _FP_FRAC_COPY_##wc(R,X); \
- } \
- R##_c = FP_CLS_NAN; \
- } while (0)
- #define FP_EX_INVALID 0x01
- #define FP_EX_DIVZERO 0x02
- #define FP_EX_OVERFLOW 0x04
- #define FP_EX_UNDERFLOW 0x08
- #define FP_EX_INEXACT 0x10
- #define FP_EX_SHIFT 8
- #define FP_EX_ALL \
- (FP_EX_INVALID | FP_EX_DIVZERO | FP_EX_OVERFLOW | FP_EX_UNDERFLOW \
- | FP_EX_INEXACT)
- #define _FP_TININESS_AFTER_ROUNDING 0
- void __sfp_handle_exceptions (int);
- #define FP_HANDLE_EXCEPTIONS \
- do { \
- if (__builtin_expect (_fex, 0)) \
- __sfp_handle_exceptions (_fex); \
- } while (0)
- #define FP_TRAPPING_EXCEPTIONS ((_fpcr >> FP_EX_SHIFT) & FP_EX_ALL)
- #define FP_RND_NEAREST 0x000000
- #define FP_RND_PINF 0x400000
- #define FP_RND_MINF 0x800000
- #define FP_RND_ZERO 0xc00000
- #define FP_RND_MASK 0xc00000
- #define _FP_DECL_EX \
- unsigned long int _fpcr __attribute__ ((unused)) = FP_RND_NEAREST
- #define FP_INIT_ROUNDMODE \
- do { \
- __asm__ __volatile__ ("mrs %0, fpcr" \
- : "=r" (_fpcr)); \
- } while (0)
- #define FP_ROUNDMODE (_fpcr & FP_RND_MASK)
- #define __LITTLE_ENDIAN 1234
- #define __BIG_ENDIAN 4321
- #if defined __AARCH64EB__
- # define __BYTE_ORDER __BIG_ENDIAN
- #else
- # define __BYTE_ORDER __LITTLE_ENDIAN
- #endif
- /* Define ALIASNAME as a strong alias for NAME. */
- # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
- # define _strong_alias(name, aliasname) \
- extern __typeof (name) aliasname __attribute__ ((alias (#name)));
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