1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 1989-2013 Free Software Foundation, Inc.
4 */
5
6#ifndef __ASM_LIBGCC_H
7#define __ASM_LIBGCC_H
8
9#define UNITS_PER_WORD 4	/* for ARC */
10#define BITS_PER_UNIT 8		/* for ARC */
11
12#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
13
14#define MIN_UNITS_PER_WORD UNITS_PER_WORD
15
16/* Work out the largest "word" size that we can deal with on this target.  */
17#if MIN_UNITS_PER_WORD > 4
18# define LIBGCC2_MAX_UNITS_PER_WORD 8
19#elif (MIN_UNITS_PER_WORD > 2 \
20       || (MIN_UNITS_PER_WORD > 1 && __SIZEOF_LONG_LONG__ > 4))
21# define LIBGCC2_MAX_UNITS_PER_WORD 4
22#else
23# define LIBGCC2_MAX_UNITS_PER_WORD MIN_UNITS_PER_WORD
24#endif
25
26/* Work out what word size we are using for this compilation.
27   The value can be set on the command line.  */
28#ifndef LIBGCC2_UNITS_PER_WORD
29#define LIBGCC2_UNITS_PER_WORD LIBGCC2_MAX_UNITS_PER_WORD
30#endif
31
32typedef		 int QItype	__attribute__ ((mode (QI)));
33typedef unsigned int UQItype	__attribute__ ((mode (QI)));
34typedef		 int HItype	__attribute__ ((mode (HI)));
35typedef unsigned int UHItype	__attribute__ ((mode (HI)));
36#if MIN_UNITS_PER_WORD > 1
37/* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1.  */
38typedef		 int SItype	__attribute__ ((mode (SI)));
39typedef unsigned int USItype	__attribute__ ((mode (SI)));
40#if __SIZEOF_LONG_LONG__ > 4
41/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2.  */
42typedef		 int DItype	__attribute__ ((mode (DI)));
43typedef unsigned int UDItype	__attribute__ ((mode (DI)));
44#if MIN_UNITS_PER_WORD > 4
45/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4.  */
46typedef		 int TItype	__attribute__ ((mode (TI)));
47typedef unsigned int UTItype	__attribute__ ((mode (TI)));
48#endif
49#endif
50#endif
51
52#if LIBGCC2_UNITS_PER_WORD == 8
53#define W_TYPE_SIZE (8 * BITS_PER_UNIT)
54#define Wtype	DItype
55#define UWtype	UDItype
56#define HWtype	DItype
57#define UHWtype	UDItype
58#define DWtype	TItype
59#define UDWtype	UTItype
60#ifdef LIBGCC2_GNU_PREFIX
61#define __NW(a,b)	__gnu_ ## a ## di ## b
62#define __NDW(a,b)	__gnu_ ## a ## ti ## b
63#else
64#define __NW(a,b)	__ ## a ## di ## b
65#define __NDW(a,b)	__ ## a ## ti ## b
66#endif
67#elif LIBGCC2_UNITS_PER_WORD == 4
68#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
69#define Wtype	SItype
70#define UWtype	USItype
71#define HWtype	SItype
72#define UHWtype	USItype
73#define DWtype	DItype
74#define UDWtype	UDItype
75#ifdef LIBGCC2_GNU_PREFIX
76#define __NW(a,b)	__gnu_ ## a ## si ## b
77#define __NDW(a,b)	__gnu_ ## a ## di ## b
78#else
79#define __NW(a,b)	__ ## a ## si ## b
80#define __NDW(a,b)	__ ## a ## di ## b
81#endif
82#elif LIBGCC2_UNITS_PER_WORD == 2
83#define W_TYPE_SIZE (2 * BITS_PER_UNIT)
84#define Wtype	HItype
85#define UWtype	UHItype
86#define HWtype	HItype
87#define UHWtype	UHItype
88#define DWtype	SItype
89#define UDWtype	USItype
90#ifdef LIBGCC2_GNU_PREFIX
91#define __NW(a,b)	__gnu_ ## a ## hi ## b
92#define __NDW(a,b)	__gnu_ ## a ## si ## b
93#else
94#define __NW(a,b)	__ ## a ## hi ## b
95#define __NDW(a,b)	__ ## a ## si ## b
96#endif
97#else
98#define W_TYPE_SIZE BITS_PER_UNIT
99#define Wtype	QItype
100#define UWtype  UQItype
101#define HWtype	QItype
102#define UHWtype	UQItype
103#define DWtype	HItype
104#define UDWtype	UHItype
105#ifdef LIBGCC2_GNU_PREFIX
106#define __NW(a,b)	__gnu_ ## a ## qi ## b
107#define __NDW(a,b)	__gnu_ ## a ## hi ## b
108#else
109#define __NW(a,b)	__ ## a ## qi ## b
110#define __NDW(a,b)	__ ## a ## hi ## b
111#endif
112#endif
113
114typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
115
116#if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
117	struct DWstruct {Wtype high, low;};
118#else
119	struct DWstruct {Wtype low, high;};
120#endif
121
122/* We need this union to unpack/pack DImode values, since we don't have
123   any arithmetic yet.  Incoming DImode parameters are stored into the
124   `ll' field, and the unpacked result is read from the struct `s'.  */
125
126typedef union {
127	struct DWstruct s;
128	DWtype ll;
129} DWunion;
130
131#endif /* __ASM_LIBGCC_H */
132