[thirdparty/gcc.git] / gcc / config / rs6000 / ppc-asm.h

/* PowerPC asm definitions for GNU C.

Copyright (C) 2002-2020 Free Software Foundation, Inc.

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/>.  */

/* Under winnt, 1) gas supports the following as names and 2) in particular
   defining "toc" breaks the FUNC_START macro as ".toc" becomes ".2" */

#define r0	0
#define sp	1
#define toc	2
#define r3	3
#define r4	4
#define r5	5
#define r6	6
#define r7	7
#define r8	8
#define r9	9
#define r10	10
#define r11	11
#define r12	12
#define r13	13
#define r14	14
#define r15	15
#define r16	16
#define r17	17
#define r18	18
#define r19     19
#define r20	20
#define r21	21
#define r22	22
#define r23	23
#define r24	24
#define r25	25
#define r26	26
#define r27	27
#define r28	28
#define r29	29
#define r30	30
#define r31	31

#define cr0	0
#define cr1	1
#define cr2	2
#define cr3	3
#define cr4	4
#define cr5	5
#define cr6	6
#define cr7	7

#define f0	0
#define f1	1
#define f2	2
#define f3	3
#define f4	4
#define f5	5
#define f6	6
#define f7	7
#define f8	8
#define f9	9
#define f10	10
#define f11	11
#define f12	12
#define f13	13
#define f14	14
#define f15	15
#define f16	16
#define f17	17
#define f18	18
#define f19	19
#define f20	20
#define f21	21
#define f22	22
#define f23	23
#define f24	24
#define f25	25
#define f26	26
#define f27	27
#define f28	28
#define f29	29
#define f30	30
#define f31	31

#ifdef __VSX__
#define f32	32
#define f33	33
#define f34	34
#define f35	35
#define f36	36
#define f37	37
#define f38	38
#define f39	39
#define f40	40
#define f41	41
#define f42	42
#define f43	43
#define f44	44
#define f45	45
#define f46	46
#define f47	47
#define f48	48
#define f49	49
#define f50	50
#define f51	51
#define f52	52
#define f53	53
#define f54	54
#define f55	55
#define f56	56
#define f57	57
#define f58	58
#define f59	59
#define f60	60
#define f61	61
#define f62	62
#define f63	63
#endif

#ifdef __ALTIVEC__
#define v0	0
#define v1	1
#define v2	2
#define v3	3
#define v4	4
#define v5	5
#define v6	6
#define v7	7
#define v8	8
#define v9	9
#define v10	10
#define v11	11
#define v12	12
#define v13	13
#define v14	14
#define v15	15
#define v16	16
#define v17	17
#define v18	18
#define v19	19
#define v20	20
#define v21	21
#define v22	22
#define v23	23
#define v24	24
#define v25	25
#define v26	26
#define v27	27
#define v28	28
#define v29	29
#define v30	30
#define v31	31
#endif

#ifdef __VSX__
#define vs0	0
#define vs1	1
#define vs2	2
#define vs3	3
#define vs4	4
#define vs5	5
#define vs6	6
#define vs7	7
#define vs8	8
#define vs9	9
#define vs10	10
#define vs11	11
#define vs12	12
#define vs13	13
#define vs14	14
#define vs15	15
#define vs16	16
#define vs17	17
#define vs18	18
#define vs19	19
#define vs20	20
#define vs21	21
#define vs22	22
#define vs23	23
#define vs24	24
#define vs25	25
#define vs26	26
#define vs27	27
#define vs28	28
#define vs29	29
#define vs30	30
#define vs31	31
#define vs32	32
#define vs33	33
#define vs34	34
#define vs35	35
#define vs36	36
#define vs37	37
#define vs38	38
#define vs39	39
#define vs40	40
#define vs41	41
#define vs42	42
#define vs43	43
#define vs44	44
#define vs45	45
#define vs46	46
#define vs47	47
#define vs48	48
#define vs49	49
#define vs50	50
#define vs51	51
#define vs52	52
#define vs53	53
#define vs54	54
#define vs55	55
#define vs56	56
#define vs57	57
#define vs58	58
#define vs59	59
#define vs60	60
#define vs61	61
#define vs62	62
#define vs63	63
#endif

/*
 * Macros to glue together two tokens.
 */

#ifdef __STDC__
#define XGLUE(a,b) a##b
#else
#define XGLUE(a,b) a/**/b
#endif

#define GLUE(a,b) XGLUE(a,b)

/*
 * Macros to begin and end a function written in assembler.  If -mcall-aixdesc
 * or -mcall-nt, create a function descriptor with the given name, and create
 * the real function with one or two leading periods respectively.
 */

#if defined(__powerpc64__) && _CALL_ELF == 2

/* Defining "toc" above breaks @toc in assembler code.  */
#undef toc

#define FUNC_NAME(name) GLUE(__USER_LABEL_PREFIX__,name)
#define JUMP_TARGET(name) FUNC_NAME(name)
#define FUNC_START(name) \
	.type FUNC_NAME(name),@function; \
	.globl FUNC_NAME(name); \
FUNC_NAME(name): \
0:	addis 2,12,(.TOC.-0b)@ha; \
	addi 2,2,(.TOC.-0b)@l; \
	.localentry FUNC_NAME(name),.-FUNC_NAME(name)

#define HIDDEN_FUNC(name) \
  FUNC_START(name) \
  .hidden FUNC_NAME(name);

#define FUNC_END(name) \
	.size FUNC_NAME(name),.-FUNC_NAME(name)

#elif defined (__powerpc64__)

#define FUNC_NAME(name) GLUE(.,name)
#define JUMP_TARGET(name) FUNC_NAME(name)
#define FUNC_START(name) \
	.section ".opd","aw"; \
name: \
	.quad GLUE(.,name); \
	.quad .TOC.@tocbase; \
	.quad 0; \
	.previous; \
	.type GLUE(.,name),@function; \
	.globl name; \
	.globl GLUE(.,name); \
GLUE(.,name):

#define HIDDEN_FUNC(name) \
  FUNC_START(name) \
  .hidden name;	\
  .hidden GLUE(.,name);

#define FUNC_END(name) \
GLUE(.L,name): \
	.size GLUE(.,name),GLUE(.L,name)-GLUE(.,name)

#elif defined(_CALL_AIXDESC)

#ifdef _RELOCATABLE
#define DESC_SECTION ".got2"
#else
#define DESC_SECTION ".got1"
#endif

#define FUNC_NAME(name) GLUE(.,name)
#define JUMP_TARGET(name) FUNC_NAME(name)
#define FUNC_START(name) \
	.section DESC_SECTION,"aw"; \
name: \
	.long GLUE(.,name); \
	.long _GLOBAL_OFFSET_TABLE_; \
	.long 0; \
	.previous; \
	.type GLUE(.,name),@function; \
	.globl name; \
	.globl GLUE(.,name); \
GLUE(.,name):

#define HIDDEN_FUNC(name) \
  FUNC_START(name) \
  .hidden name; \
  .hidden GLUE(.,name);

#define FUNC_END(name) \
GLUE(.L,name): \
	.size GLUE(.,name),GLUE(.L,name)-GLUE(.,name)

#else

#define FUNC_NAME(name) GLUE(__USER_LABEL_PREFIX__,name)
#if defined __PIC__ || defined __pic__
#define JUMP_TARGET(name) FUNC_NAME(name@plt)
#else
#define JUMP_TARGET(name) FUNC_NAME(name)
#endif
#define FUNC_START(name) \
	.type FUNC_NAME(name),@function; \
	.globl FUNC_NAME(name); \
FUNC_NAME(name):

#define HIDDEN_FUNC(name) \
  FUNC_START(name) \
  .hidden FUNC_NAME(name);

#define FUNC_END(name) \
GLUE(.L,name): \
	.size FUNC_NAME(name),GLUE(.L,name)-FUNC_NAME(name)
#endif

#ifdef IN_GCC
/* For HAVE_GAS_CFI_DIRECTIVE.  */
#include "auto-host.h"

#ifdef HAVE_GAS_CFI_DIRECTIVE
# define CFI_STARTPROC			.cfi_startproc
# define CFI_ENDPROC			.cfi_endproc
# define CFI_OFFSET(reg, off)		.cfi_offset reg, off
# define CFI_DEF_CFA_REGISTER(reg)	.cfi_def_cfa_register reg
# define CFI_RESTORE(reg)		.cfi_restore reg
#else
# define CFI_STARTPROC
# define CFI_ENDPROC
# define CFI_OFFSET(reg, off)
# define CFI_DEF_CFA_REGISTER(reg)
# define CFI_RESTORE(reg)
#endif
#endif

#if defined __linux__ && !defined __powerpc64__
	.section .note.GNU-stack
	.previous
#endif
Commit	Line	Data
ad41bd84 JM	1	/* PowerPC asm definitions for GNU C.
ad41bd84 JM	2
8d9254fc	3	Copyright (C) 2002-2020 Free Software Foundation, Inc.
ad41bd84 JM	4
	5	This file is part of GCC.
	6
	7	GCC is free software; you can redistribute it and/or modify it under
	8	the terms of the GNU General Public License as published by the Free
	9	Software Foundation; either version 3, or (at your option) any later
	10	version.
	11
	12	GCC is distributed in the hope that it will be useful, but WITHOUT ANY
	13	WARRANTY; without even the implied warranty of MERCHANTABILITY or
	14	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	15	for more details.
	16
	17	Under Section 7 of GPL version 3, you are granted additional
	18	permissions described in the GCC Runtime Library Exception, version
	19	3.1, as published by the Free Software Foundation.
	20
	21	You should have received a copy of the GNU General Public License and
	22	a copy of the GCC Runtime Library Exception along with this program;
	23	see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	24	<http://www.gnu.org/licenses/>. */
	25
a0d66c8d	26	/* Under winnt, 1) gas supports the following as names and 2) in particular
8e05e5dd MM	27	defining "toc" breaks the FUNC_START macro as ".toc" becomes ".2" */
8e05e5dd MM	28
482cfaf8 MM	29	#define r0 0
	30	#define sp 1
	31	#define toc 2
	32	#define r3 3
	33	#define r4 4
	34	#define r5 5
	35	#define r6 6
	36	#define r7 7
	37	#define r8 8
	38	#define r9 9
	39	#define r10 10
	40	#define r11 11
	41	#define r12 12
	42	#define r13 13
	43	#define r14 14
	44	#define r15 15
	45	#define r16 16
	46	#define r17 17
	47	#define r18 18
	48	#define r19 19
	49	#define r20 20
	50	#define r21 21
	51	#define r22 22
	52	#define r23 23
	53	#define r24 24
	54	#define r25 25
	55	#define r26 26
	56	#define r27 27
	57	#define r28 28
	58	#define r29 29
	59	#define r30 30
	60	#define r31 31
eaf1bcf1 MM	61
	62	#define cr0 0
	63	#define cr1 1
	64	#define cr2 2
	65	#define cr3 3
	66	#define cr4 4
	67	#define cr5 5
	68	#define cr6 6
	69	#define cr7 7
	70
	71	#define f0 0
	72	#define f1 1
	73	#define f2 2
	74	#define f3 3
	75	#define f4 4
	76	#define f5 5
	77	#define f6 6
	78	#define f7 7
	79	#define f8 8
	80	#define f9 9
	81	#define f10 10
	82	#define f11 11
	83	#define f12 12
	84	#define f13 13
	85	#define f14 14
	86	#define f15 15
	87	#define f16 16
	88	#define f17 17
	89	#define f18 18
29e6733c	90	#define f19 19
eaf1bcf1 MM	91	#define f20 20
	92	#define f21 21
	93	#define f22 22
	94	#define f23 23
	95	#define f24 24
	96	#define f25 25
	97	#define f26 26
	98	#define f27 27
	99	#define f28 28
	100	#define f29 29
	101	#define f30 30
	102	#define f31 31
482cfaf8	103
29e6733c MM	104	#ifdef __VSX__
	105	#define f32 32
	106	#define f33 33
	107	#define f34 34
	108	#define f35 35
	109	#define f36 36
	110	#define f37 37
	111	#define f38 38
	112	#define f39 39
	113	#define f40 40
	114	#define f41 41
	115	#define f42 42
	116	#define f43 43
	117	#define f44 44
	118	#define f45 45
	119	#define f46 46
	120	#define f47 47
	121	#define f48 48
	122	#define f49 49
fc3605f1	123	#define f50 50
29e6733c MM	124	#define f51 51
	125	#define f52 52
	126	#define f53 53
	127	#define f54 54
	128	#define f55 55
	129	#define f56 56
	130	#define f57 57
	131	#define f58 58
	132	#define f59 59
	133	#define f60 60
	134	#define f61 61
	135	#define f62 62
	136	#define f63 63
	137	#endif
	138
	139	#ifdef __ALTIVEC__
	140	#define v0 0
	141	#define v1 1
	142	#define v2 2
	143	#define v3 3
	144	#define v4 4
	145	#define v5 5
	146	#define v6 6
	147	#define v7 7
	148	#define v8 8
	149	#define v9 9
	150	#define v10 10
	151	#define v11 11
	152	#define v12 12
	153	#define v13 13
	154	#define v14 14
	155	#define v15 15
	156	#define v16 16
	157	#define v17 17
	158	#define v18 18
	159	#define v19 19
	160	#define v20 20
	161	#define v21 21
	162	#define v22 22
	163	#define v23 23
	164	#define v24 24
	165	#define v25 25
	166	#define v26 26
	167	#define v27 27
	168	#define v28 28
	169	#define v29 29
	170	#define v30 30
	171	#define v31 31
	172	#endif
	173
	174	#ifdef __VSX__
	175	#define vs0 0
	176	#define vs1 1
	177	#define vs2 2
	178	#define vs3 3
	179	#define vs4 4
	180	#define vs5 5
	181	#define vs6 6
	182	#define vs7 7
	183	#define vs8 8
	184	#define vs9 9
	185	#define vs10 10
	186	#define vs11 11
	187	#define vs12 12
188	#define vs13 13
189	#define vs14 14
190	#define vs15 15
191	#define vs16 16
192	#define vs17 17
193	#define vs18 18
194	#define vs19 19
195	#define vs20 20
196	#define vs21 21
197	#define vs22 22
198	#define vs23 23
199	#define vs24 24
200	#define vs25 25
201	#define vs26 26
202	#define vs27 27
203	#define vs28 28
204	#define vs29 29
205	#define vs30 30
206	#define vs31 31
207	#define vs32 32
208	#define vs33 33
209	#define vs34 34
210	#define vs35 35
211	#define vs36 36
212	#define vs37 37
213	#define vs38 38
214	#define vs39 39
215	#define vs40 40
216	#define vs41 41
217	#define vs42 42
218	#define vs43 43
219	#define vs44 44
220	#define vs45 45
221	#define vs46 46
222	#define vs47 47
223	#define vs48 48
224	#define vs49 49
fc3605f1	225	#define vs50 50
29e6733c MM	226	#define vs51 51
	227	#define vs52 52
	228	#define vs53 53
	229	#define vs54 54
	230	#define vs55 55
	231	#define vs56 56
	232	#define vs57 57
	233	#define vs58 58
	234	#define vs59 59
	235	#define vs60 60
	236	#define vs61 61
	237	#define vs62 62
	238	#define vs63 63
	239	#endif
	240
482cfaf8 MM	241	/*
	242	* Macros to glue together two tokens.
	243	*/
	244
	245	#ifdef __STDC__
	246	#define XGLUE(a,b) a##b
	247	#else
	248	#define XGLUE(a,b) a/**/b
	249	#endif
	250
	251	#define GLUE(a,b) XGLUE(a,b)
	252
	253	/*
	254	* Macros to begin and end a function written in assembler. If -mcall-aixdesc
	255	* or -mcall-nt, create a function descriptor with the given name, and create
	256	* the real function with one or two leading periods respectively.
	257	*/
	258
b54214fe UW	259	#if defined(__powerpc64__) && _CALL_ELF == 2
	260
	261	/* Defining "toc" above breaks @toc in assembler code. */
	262	#undef toc
	263
	264	#define FUNC_NAME(name) GLUE(__USER_LABEL_PREFIX__,name)
	265	#define JUMP_TARGET(name) FUNC_NAME(name)
	266	#define FUNC_START(name) \
	267	.type FUNC_NAME(name),@function; \
	268	.globl FUNC_NAME(name); \
	269	FUNC_NAME(name): \
	270	0: addis 2,12,(.TOC.-0b)@ha; \
	271	addi 2,2,(.TOC.-0b)@l; \
	272	.localentry FUNC_NAME(name),.-FUNC_NAME(name)
	273
	274	#define HIDDEN_FUNC(name) \
	275	FUNC_START(name) \
	276	.hidden FUNC_NAME(name);
	277
	278	#define FUNC_END(name) \
	279	.size FUNC_NAME(name),.-FUNC_NAME(name)
	280
	281	#elif defined (__powerpc64__)
	282
482cfaf8	283	#define FUNC_NAME(name) GLUE(.,name)
8a155ecc	284	#define JUMP_TARGET(name) FUNC_NAME(name)
482cfaf8	285	#define FUNC_START(name) \
9739c90c	286	.section ".opd","aw"; \
482cfaf8	287	name: \
9739c90c JJ	288	.quad GLUE(.,name); \
	289	.quad .TOC.@tocbase; \
	290	.quad 0; \
482cfaf8 MM	291	.previous; \
	292	.type GLUE(.,name),@function; \
	293	.globl name; \
	294	.globl GLUE(.,name); \
	295	GLUE(.,name):
	296
1590a115 NF	297	#define HIDDEN_FUNC(name) \
	298	FUNC_START(name) \
	299	.hidden name; \
	300	.hidden GLUE(.,name);
	301
482cfaf8 MM	302	#define FUNC_END(name) \
	303	GLUE(.L,name): \
	304	.size GLUE(.,name),GLUE(.L,name)-GLUE(.,name)
	305
9739c90c JJ	306	#elif defined(_CALL_AIXDESC)
	307
	308	#ifdef _RELOCATABLE
	309	#define DESC_SECTION ".got2"
	310	#else
	311	#define DESC_SECTION ".got1"
	312	#endif
	313
710fdaad	314	#define FUNC_NAME(name) GLUE(.,name)
34d1b01d	315	#define JUMP_TARGET(name) FUNC_NAME(name)
710fdaad	316	#define FUNC_START(name) \
9739c90c	317	.section DESC_SECTION,"aw"; \
710fdaad	318	name: \
9739c90c JJ	319	.long GLUE(.,name); \
	320	.long _GLOBAL_OFFSET_TABLE_; \
	321	.long 0; \
710fdaad DE	322	.previous; \
	323	.type GLUE(.,name),@function; \
	324	.globl name; \
	325	.globl GLUE(.,name); \
	326	GLUE(.,name):
	327
1590a115 NF	328	#define HIDDEN_FUNC(name) \
	329	FUNC_START(name) \
	330	.hidden name; \
	331	.hidden GLUE(.,name);
	332
710fdaad DE	333	#define FUNC_END(name) \
	334	GLUE(.L,name): \
	335	.size GLUE(.,name),GLUE(.L,name)-GLUE(.,name)
	336
482cfaf8	337	#else
9739c90c	338
79f4e1c0	339	#define FUNC_NAME(name) GLUE(__USER_LABEL_PREFIX__,name)
8a155ecc FS	340	#if defined __PIC__ \|\| defined __pic__
	341	#define JUMP_TARGET(name) FUNC_NAME(name@plt)
	342	#else
	343	#define JUMP_TARGET(name) FUNC_NAME(name)
	344	#endif
482cfaf8	345	#define FUNC_START(name) \
79f4e1c0 GK	346	.type FUNC_NAME(name),@function; \
	347	.globl FUNC_NAME(name); \
	348	FUNC_NAME(name):
482cfaf8	349
1590a115 NF	350	#define HIDDEN_FUNC(name) \
	351	FUNC_START(name) \
	352	.hidden FUNC_NAME(name);
	353
482cfaf8 MM	354	#define FUNC_END(name) \
482cfaf8 MM	355	GLUE(.L,name): \
79f4e1c0	356	.size FUNC_NAME(name),GLUE(.L,name)-FUNC_NAME(name)
482cfaf8	357	#endif
3edc56a9	358
16702e19	359	#ifdef IN_GCC
ff35822b JJ	360	/* For HAVE_GAS_CFI_DIRECTIVE. */
	361	#include "auto-host.h"
	362
	363	#ifdef HAVE_GAS_CFI_DIRECTIVE
	364	# define CFI_STARTPROC .cfi_startproc
	365	# define CFI_ENDPROC .cfi_endproc
	366	# define CFI_OFFSET(reg, off) .cfi_offset reg, off
	367	# define CFI_DEF_CFA_REGISTER(reg) .cfi_def_cfa_register reg
	368	# define CFI_RESTORE(reg) .cfi_restore reg
	369	#else
	370	# define CFI_STARTPROC
	371	# define CFI_ENDPROC
	372	# define CFI_OFFSET(reg, off)
	373	# define CFI_DEF_CFA_REGISTER(reg)
	374	# define CFI_RESTORE(reg)
	375	#endif
16702e19	376	#endif
ff35822b	377
3edc56a9 JJ	378	#if defined __linux__ && !defined __powerpc64__
	379	.section .note.GNU-stack
	380	.previous
	381	#endif