156 lines
5 KiB
C
156 lines
5 KiB
C
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/* softfp machine description for PA-RISC.
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Copyright (C) 2009-2022 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifdef __LP64__
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#define _FP_W_TYPE_SIZE 64
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#define _FP_W_TYPE unsigned long
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#define _FP_WS_TYPE signed long
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#define _FP_I_TYPE long
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typedef int TItype __attribute__ ((mode (TI)));
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typedef unsigned int UTItype __attribute__ ((mode (TI)));
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#define TI_BITS (__CHAR_BIT__ * (int) sizeof (TItype))
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#define _FP_MUL_MEAT_S(R,X,Y) \
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_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
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#define _FP_MUL_MEAT_D(R,X,Y) \
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_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
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#define _FP_MUL_MEAT_Q(R,X,Y) \
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_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
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#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y)
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#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
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#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
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#define _FP_NANFRAC_S (_FP_QNANBIT_S - 1)
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#define _FP_NANFRAC_D (_FP_QNANBIT_D - 1)
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#define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1
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#else
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#define _FP_W_TYPE_SIZE 32
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#define _FP_W_TYPE unsigned int
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#define _FP_WS_TYPE signed int
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#define _FP_I_TYPE int
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#define _FP_MUL_MEAT_S(R,X,Y) \
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_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
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#define _FP_MUL_MEAT_D(R,X,Y) \
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_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
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#define _FP_MUL_MEAT_Q(R,X,Y) \
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_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
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#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y)
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#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
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#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
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#define _FP_NANFRAC_S (_FP_QNANBIT_S - 1)
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#define _FP_NANFRAC_D (_FP_QNANBIT_D - 1), -1
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#define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1, -1, -1
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#endif
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/* The type of the result of a floating point comparison. This must
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match __libgcc_cmp_return__ in GCC for the target. */
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typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
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#define CMPtype __gcc_CMPtype
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#define _FP_NANSIGN_S 0
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#define _FP_NANSIGN_D 0
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#define _FP_NANSIGN_Q 0
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#define _FP_KEEPNANFRACP 1
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#define _FP_QNANNEGATEDP 1
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/* Comment from glibc: */
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/* From my experiments it seems X is chosen unless one of the
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NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */
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# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
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do { \
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if ((_FP_FRAC_HIGH_RAW_##fs(X) | \
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_FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \
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{ \
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R##_s = _FP_NANSIGN_##fs; \
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_FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \
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} \
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else \
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{ \
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R##_s = X##_s; \
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_FP_FRAC_COPY_##wc(R,X); \
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} \
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R##_c = FP_CLS_NAN; \
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} while (0)
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#define FP_RND_NEAREST (0 << 9)
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#define FP_RND_ZERO (1 << 9)
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#define FP_RND_PINF (2 << 9)
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#define FP_RND_MINF (3 << 9)
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#define FP_RND_MASK (3 << 9)
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#define FP_EX_INEXACT 0x01
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#define FP_EX_UNDERFLOW 0x02
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#define FP_EX_OVERFLOW 0x04
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#define FP_EX_DIVZERO 0x08
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#define FP_EX_INVALID 0x10
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#define FP_EX_ALL 0x1F
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#define FP_EX_SHIFT 27
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#define _FP_TININESS_AFTER_ROUNDING 1
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#define _FP_DECL_EX \
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unsigned int _fcsr __attribute__ ((unused)) = FP_RND_NEAREST
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/* Get floating-point status. */
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#define _FPU_GETCW(cw) \
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({ \
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union { unsigned long long __fpreg; \
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unsigned int __halfreg[2]; } __fullfp; \
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/* Get the current status word. */ \
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__asm__ ("fstd %%fr0,0(%1)\n\t" \
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"fldd 0(%1),%%fr0\n\t" \
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: "=m" (__fullfp.__fpreg) \
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: "r" (&__fullfp.__fpreg) \
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: "%r0"); \
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cw = __fullfp.__halfreg[0]; \
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})
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#define FP_INIT_ROUNDMODE _FPU_GETCW(_fcsr)
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#define FP_ROUNDMODE (_fcsr & FP_RND_MASK)
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#define FP_TRAPPING_EXCEPTIONS (_fcsr & FP_EX_ALL)
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void __sfp_handle_exceptions (int);
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#define FP_HANDLE_EXCEPTIONS \
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do { \
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if (__builtin_expect (_fex, 0)) \
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__sfp_handle_exceptions (_fex); \
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} while (0)
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#define __LITTLE_ENDIAN 1234
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#define __BIG_ENDIAN 4321
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#define __BYTE_ORDER __BIG_ENDIAN
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/* Define ALIASNAME as a strong alias for NAME. */
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# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
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# define _strong_alias(name, aliasname) \
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extern __typeof (name) aliasname __attribute__ ((alias (#name)));
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