/* Machine description for AArch64 architecture.
- Copyright (C) 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+ Copyright (C) 2009-2020 Free Software Foundation, Inc.
Contributed by ARM Ltd.
- This file is part of GCC.
+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 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.
+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.
- You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING3. If not see
- <http://www.gnu.org/licenses/>. */
+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
-#define _FP_WS_TYPE signed long
-#define _FP_I_TYPE int
+#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 _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_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 { \
- const float fp_max = __FLT_MAX__; \
- const float fp_min = __FLT_MIN__; \
- const float fp_1e32 = 1.0e32f; \
- const float fp_zero = 0.0; \
- const float fp_one = 1.0; \
- unsigned fpsr; \
- if (_fex & FP_EX_INVALID) \
- { \
- __asm__ __volatile__ ("fdiv\ts0, %s0, %s0" \
- : \
- : "w" (fp_zero) \
- : "s0"); \
- __asm__ __volatile__ ("mrs\t%0, fpsr" : "=r" (fpsr)); \
- } \
- if (_fex & FP_EX_DIVZERO) \
- { \
- __asm__ __volatile__ ("fdiv\ts0, %s0, %s1" \
- : \
- : "w" (fp_one), "w" (fp_zero) \
- : "s0"); \
- __asm__ __volatile__ ("mrs\t%0, fpsr" : "=r" (fpsr)); \
- } \
- if (_fex & FP_EX_OVERFLOW) \
- { \
- __asm__ __volatile__ ("fadd\ts0, %s0, %s1" \
- : \
- : "w" (fp_max), "w" (fp_1e32) \
- : "s0"); \
- __asm__ __volatile__ ("mrs\t%0, fpsr" : "=r" (fpsr)); \
- } \
- if (_fex & FP_EX_UNDERFLOW) \
- { \
- __asm__ __volatile__ ("fmul\ts0, %s0, %s0" \
- : \
- : "w" (fp_min) \
- : "s0"); \
- __asm__ __volatile__ ("mrs\t%0, fpsr" : "=r" (fpsr)); \
- } \
- if (_fex & FP_EX_INEXACT) \
- { \
- __asm__ __volatile__ ("fsub\ts0, %s0, %s1" \
- : \
- : "w" (fp_max), "w" (fp_one) \
- : "s0"); \
- __asm__ __volatile__ ("mrs\t%0, fpsr" : "=r" (fpsr)); \
- } \
+#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 0
-#define FP_RND_ZERO 0xc00000
+#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
: "=r" (_fpcr)); \
} while (0)
-#define FP_ROUNDMODE (_fpcr & 0xc00000)
+#define FP_ROUNDMODE (_fpcr & FP_RND_MASK)
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
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