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eabd3262 | 1 | /* Definitions of target machine for GNU compiler, for the HP Spectrum. |
cbe34bb5 | 2 | Copyright (C) 1992-2017 Free Software Foundation, Inc. |
8b109b37 | 3 | Contributed by Michael Tiemann (tiemann@cygnus.com) of Cygnus Support |
eabd3262 RK |
4 | and Tim Moore (moore@defmacro.cs.utah.edu) of the Center for |
5 | Software Science at the University of Utah. | |
6 | ||
b7849684 | 7 | This file is part of GCC. |
eabd3262 | 8 | |
b7849684 | 9 | GCC is free software; you can redistribute it and/or modify |
eabd3262 | 10 | it under the terms of the GNU General Public License as published by |
2f83c7d6 | 11 | the Free Software Foundation; either version 3, or (at your option) |
eabd3262 RK |
12 | any later version. |
13 | ||
b7849684 | 14 | GCC is distributed in the hope that it will be useful, |
eabd3262 RK |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
2f83c7d6 NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
eabd3262 | 22 | |
279c9bde | 23 | /* For long call handling. */ |
a02aa5b0 | 24 | extern unsigned long total_code_bytes; |
279c9bde | 25 | |
a2017852 JDA |
26 | #define pa_cpu_attr ((enum attr_cpu)pa_cpu) |
27 | ||
66617831 | 28 | #define TARGET_PA_10 (!TARGET_PA_11 && !TARGET_PA_20) |
520babc7 JL |
29 | |
30 | /* Generate code for the HPPA 2.0 architecture in 64bit mode. */ | |
31 | #ifndef TARGET_64BIT | |
32 | #define TARGET_64BIT 0 | |
33 | #endif | |
ea3bfbfe | 34 | |
fe19a83d | 35 | /* Generate code for ELF32 ABI. */ |
e25724d8 AM |
36 | #ifndef TARGET_ELF32 |
37 | #define TARGET_ELF32 0 | |
38 | #endif | |
39 | ||
3d9268b6 JDA |
40 | /* Generate code for SOM 32bit ABI. */ |
41 | #ifndef TARGET_SOM | |
42 | #define TARGET_SOM 0 | |
43 | #endif | |
44 | ||
d711cf67 JDA |
45 | /* HP-UX UNIX features. */ |
46 | #ifndef TARGET_HPUX | |
47 | #define TARGET_HPUX 0 | |
48 | #endif | |
49 | ||
50 | /* HP-UX 10.10 UNIX 95 features. */ | |
51 | #ifndef TARGET_HPUX_10_10 | |
52 | #define TARGET_HPUX_10_10 0 | |
53 | #endif | |
54 | ||
dfcb2b51 SE |
55 | /* HP-UX 11.* features (11.00, 11.11, 11.23, etc.) */ |
56 | #ifndef TARGET_HPUX_11 | |
57 | #define TARGET_HPUX_11 0 | |
58 | #endif | |
59 | ||
d711cf67 JDA |
60 | /* HP-UX 11i multibyte and UNIX 98 extensions. */ |
61 | #ifndef TARGET_HPUX_11_11 | |
62 | #define TARGET_HPUX_11_11 0 | |
63 | #endif | |
64 | ||
4eec64ff SE |
65 | /* HP-UX 11i multibyte and UNIX 2003 extensions. */ |
66 | #ifndef TARGET_HPUX_11_31 | |
67 | #define TARGET_HPUX_11_31 0 | |
68 | #endif | |
69 | ||
41a1208a JDA |
70 | /* HP-UX long double library. */ |
71 | #ifndef HPUX_LONG_DOUBLE_LIBRARY | |
72 | #define HPUX_LONG_DOUBLE_LIBRARY 0 | |
73 | #endif | |
74 | ||
33a55f29 RH |
75 | /* Linux kernel atomic operation support. */ |
76 | #ifndef TARGET_SYNC_LIBCALL | |
77 | #define TARGET_SYNC_LIBCALL 0 | |
78 | #endif | |
79 | ||
a02aa5b0 JDA |
80 | /* The following three defines are potential target switches. The current |
81 | defines are optimal given the current capabilities of GAS and GNU ld. */ | |
82 | ||
83 | /* Define to a C expression evaluating to true to use long absolute calls. | |
84 | Currently, only the HP assembler and SOM linker support long absolute | |
85 | calls. They are used only in non-pic code. */ | |
86 | #define TARGET_LONG_ABS_CALL (TARGET_SOM && !TARGET_GAS) | |
87 | ||
9dbd54be JDA |
88 | /* Define to a C expression evaluating to true to use long PIC symbol |
89 | difference calls. Long PIC symbol difference calls are only used with | |
90 | the HP assembler and linker. The HP assembler detects this instruction | |
91 | sequence and treats it as long pc-relative call. Currently, GAS only | |
92 | allows a difference of two symbols in the same subspace, and it doesn't | |
93 | detect the sequence as a pc-relative call. */ | |
94 | #define TARGET_LONG_PIC_SDIFF_CALL (!TARGET_GAS && TARGET_HPUX) | |
95 | ||
4af6a063 JDA |
96 | /* Define to a C expression evaluating to true to use SOM secondary |
97 | definition symbols for weak support. Linker support for secondary | |
98 | definition symbols is buggy prior to HP-UX 11.X. */ | |
99 | #define TARGET_SOM_SDEF 0 | |
100 | ||
685d0e07 JDA |
101 | /* Define to a C expression evaluating to true to save the entry value |
102 | of SP in the current frame marker. This is normally unnecessary. | |
103 | However, the HP-UX unwind library looks at the SAVE_SP callinfo flag. | |
104 | HP compilers don't use this flag but it is supported by the assembler. | |
105 | We set this flag to indicate that register %r3 has been saved at the | |
106 | start of the frame. Thus, when the HP unwind library is used, we | |
107 | need to generate additional code to save SP into the frame marker. */ | |
108 | #define TARGET_HPUX_UNWIND_LIBRARY 0 | |
109 | ||
233c0fef | 110 | #ifndef TARGET_DEFAULT |
f4000c0b | 111 | #define TARGET_DEFAULT MASK_GAS |
233c0fef TG |
112 | #endif |
113 | ||
b34ec578 RK |
114 | #ifndef TARGET_CPU_DEFAULT |
115 | #define TARGET_CPU_DEFAULT 0 | |
116 | #endif | |
117 | ||
806bf413 | 118 | #ifndef TARGET_SCHED_DEFAULT |
66617831 | 119 | #define TARGET_SCHED_DEFAULT PROCESSOR_8000 |
d711cf67 JDA |
120 | #endif |
121 | ||
7816bea0 DJ |
122 | /* Support for a compile-time default CPU, et cetera. The rules are: |
123 | --with-schedule is ignored if -mschedule is specified. | |
124 | --with-arch is ignored if -march is specified. */ | |
125 | #define OPTION_DEFAULT_SPECS \ | |
126 | {"arch", "%{!march=*:-march=%(VALUE)}" }, \ | |
127 | {"schedule", "%{!mschedule=*:-mschedule=%(VALUE)}" } | |
128 | ||
f38b27c7 JL |
129 | /* Specify the dialect of assembler to use. New mnemonics is dialect one |
130 | and the old mnemonics are dialect zero. */ | |
131 | #define ASSEMBLER_DIALECT (TARGET_PA_20 ? 1 : 0) | |
132 | ||
ca11c37c | 133 | /* Override some settings from dbxelf.h. */ |
0d381b47 JL |
134 | |
135 | /* We do not have to be compatible with dbx, so we enable gdb extensions | |
136 | by default. */ | |
794b7f56 | 137 | #define DEFAULT_GDB_EXTENSIONS 1 |
233c0fef | 138 | |
0d381b47 JL |
139 | /* This used to be zero (no max length), but big enums and such can |
140 | cause huge strings which killed gas. | |
141 | ||
142 | We also have to avoid lossage in dbxout.c -- it does not compute the | |
143 | string size accurately, so we are real conservative here. */ | |
144 | #undef DBX_CONTIN_LENGTH | |
145 | #define DBX_CONTIN_LENGTH 3000 | |
75600ead | 146 | |
2e7e7121 JL |
147 | /* GDB always assumes the current function's frame begins at the value |
148 | of the stack pointer upon entry to the current function. Accessing | |
6a5c0a8e JL |
149 | local variables and parameters passed on the stack is done using the |
150 | base of the frame + an offset provided by GCC. | |
2e7e7121 JL |
151 | |
152 | For functions which have frame pointers this method works fine; | |
153 | the (frame pointer) == (stack pointer at function entry) and GCC provides | |
154 | an offset relative to the frame pointer. | |
155 | ||
156 | This loses for functions without a frame pointer; GCC provides an offset | |
157 | which is relative to the stack pointer after adjusting for the function's | |
158 | frame size. GDB would prefer the offset to be relative to the value of | |
159 | the stack pointer at the function's entry. Yuk! */ | |
160 | #define DEBUGGER_AUTO_OFFSET(X) \ | |
161 | ((GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) \ | |
ae9d61ab | 162 | + (frame_pointer_needed ? 0 : pa_compute_frame_size (get_frame_size (), 0))) |
2e7e7121 | 163 | |
6a5c0a8e JL |
164 | #define DEBUGGER_ARG_OFFSET(OFFSET, X) \ |
165 | ((GET_CODE (X) == PLUS ? OFFSET : 0) \ | |
ae9d61ab | 166 | + (frame_pointer_needed ? 0 : pa_compute_frame_size (get_frame_size (), 0))) |
6a5c0a8e | 167 | |
c219e1da JDA |
168 | #define TARGET_CPU_CPP_BUILTINS() \ |
169 | do { \ | |
170 | builtin_assert("cpu=hppa"); \ | |
171 | builtin_assert("machine=hppa"); \ | |
172 | builtin_define("__hppa"); \ | |
173 | builtin_define("__hppa__"); \ | |
c219e1da JDA |
174 | if (TARGET_PA_20) \ |
175 | builtin_define("_PA_RISC2_0"); \ | |
176 | else if (TARGET_PA_11) \ | |
177 | builtin_define("_PA_RISC1_1"); \ | |
178 | else \ | |
179 | builtin_define("_PA_RISC1_0"); \ | |
180 | } while (0) | |
181 | ||
182 | /* An old set of OS defines for various BSD-like systems. */ | |
183 | #define TARGET_OS_CPP_BUILTINS() \ | |
184 | do \ | |
185 | { \ | |
186 | builtin_define_std ("REVARGV"); \ | |
187 | builtin_define_std ("hp800"); \ | |
188 | builtin_define_std ("hp9000"); \ | |
189 | builtin_define_std ("hp9k8"); \ | |
04df6730 | 190 | if (!c_dialect_cxx () && !flag_iso) \ |
c219e1da JDA |
191 | builtin_define ("hppa"); \ |
192 | builtin_define_std ("spectrum"); \ | |
193 | builtin_define_std ("unix"); \ | |
194 | builtin_assert ("system=bsd"); \ | |
195 | builtin_assert ("system=unix"); \ | |
196 | } \ | |
197 | while (0) | |
233c0fef | 198 | |
233c0fef | 199 | #define CC1_SPEC "%{pg:} %{p:}" |
5a1c10de | 200 | |
ad238e4b | 201 | #define LINK_SPEC "%{mlinker-opt:-O} %{!shared:-u main} %{shared:-b}" |
233c0fef | 202 | |
0fffa5e1 RK |
203 | /* We don't want -lg. */ |
204 | #ifndef LIB_SPEC | |
205 | #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" | |
206 | #endif | |
207 | ||
233c0fef TG |
208 | /* Make gcc agree with <machine/ansi.h> */ |
209 | ||
210 | #define SIZE_TYPE "unsigned int" | |
211 | #define PTRDIFF_TYPE "int" | |
3c9a7b64 JL |
212 | #define WCHAR_TYPE "unsigned int" |
213 | #define WCHAR_TYPE_SIZE 32 | |
eabd3262 RK |
214 | \f |
215 | /* target machine storage layout */ | |
d1b38208 | 216 | typedef struct GTY(()) machine_function |
9a55eab3 JDA |
217 | { |
218 | /* Flag indicating that a .NSUBSPA directive has been output for | |
219 | this function. */ | |
220 | int in_nsubspa; | |
221 | } machine_function; | |
eabd3262 | 222 | |
9f9fba36 TG |
223 | /* Define this macro if it is advisable to hold scalars in registers |
224 | in a wider mode than that declared by the program. In such cases, | |
225 | the value is constrained to be within the bounds of the declared | |
226 | type, but kept valid in the wider mode. The signedness of the | |
227 | extension may differ from that of the type. */ | |
228 | ||
229 | #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ | |
230 | if (GET_MODE_CLASS (MODE) == MODE_INT \ | |
d7735a07 | 231 | && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ |
690d4228 | 232 | (MODE) = word_mode; |
9f9fba36 | 233 | |
eabd3262 RK |
234 | /* Define this if most significant bit is lowest numbered |
235 | in instructions that operate on numbered bit-fields. */ | |
236 | #define BITS_BIG_ENDIAN 1 | |
237 | ||
238 | /* Define this if most significant byte of a word is the lowest numbered. */ | |
23643037 | 239 | /* That is true on the HP-PA. */ |
eabd3262 RK |
240 | #define BYTES_BIG_ENDIAN 1 |
241 | ||
242 | /* Define this if most significant word of a multiword number is lowest | |
243 | numbered. */ | |
eabd3262 RK |
244 | #define WORDS_BIG_ENDIAN 1 |
245 | ||
520babc7 | 246 | #define MAX_BITS_PER_WORD 64 |
eabd3262 RK |
247 | |
248 | /* Width of a word, in units (bytes). */ | |
520babc7 | 249 | #define UNITS_PER_WORD (TARGET_64BIT ? 8 : 4) |
83c32f2e JDA |
250 | |
251 | /* Minimum number of units in a word. If this is undefined, the default | |
252 | is UNITS_PER_WORD. Otherwise, it is the constant value that is the | |
253 | smallest value that UNITS_PER_WORD can have at run-time. | |
254 | ||
255 | FIXME: This needs to be 4 when TARGET_64BIT is true to suppress the | |
256 | building of various TImode routines in libgcc. The HP runtime | |
257 | specification doesn't provide the alignment requirements and calling | |
258 | conventions for TImode variables. */ | |
520babc7 | 259 | #define MIN_UNITS_PER_WORD 4 |
eabd3262 | 260 | |
4ea42eba OH |
261 | /* The widest floating point format supported by the hardware. Note that |
262 | setting this influences some Ada floating point type sizes, currently | |
263 | required for GNAT to operate properly. */ | |
264 | #define WIDEST_HARDWARE_FP_SIZE 64 | |
265 | ||
eabd3262 | 266 | /* Allocation boundary (in *bits*) for storing arguments in argument list. */ |
cb16fe9f | 267 | #define PARM_BOUNDARY BITS_PER_WORD |
eabd3262 RK |
268 | |
269 | /* Largest alignment required for any stack parameter, in bits. | |
270 | Don't define this if it is equal to PARM_BOUNDARY */ | |
d6567b3a | 271 | #define MAX_PARM_BOUNDARY BIGGEST_ALIGNMENT |
eabd3262 | 272 | |
981e5cd9 JL |
273 | /* Boundary (in *bits*) on which stack pointer is always aligned; |
274 | certain optimizations in combine depend on this. | |
275 | ||
b0d7ef9a JDA |
276 | The HP-UX runtime documents mandate 64-byte and 16-byte alignment for |
277 | the stack on the 32 and 64-bit ports, respectively. However, we | |
278 | are only guaranteed that the stack is aligned to BIGGEST_ALIGNMENT | |
279 | in main. Thus, we treat the former as the preferred alignment. */ | |
d6567b3a | 280 | #define STACK_BOUNDARY BIGGEST_ALIGNMENT |
b0d7ef9a | 281 | #define PREFERRED_STACK_BOUNDARY (TARGET_64BIT ? 128 : 512) |
79109502 | 282 | |
eabd3262 | 283 | /* Allocation boundary (in *bits*) for the code of a function. */ |
d6567b3a | 284 | #define FUNCTION_BOUNDARY BITS_PER_WORD |
eabd3262 RK |
285 | |
286 | /* Alignment of field after `int : 0' in a structure. */ | |
287 | #define EMPTY_FIELD_BOUNDARY 32 | |
288 | ||
289 | /* Every structure's size must be a multiple of this. */ | |
290 | #define STRUCTURE_SIZE_BOUNDARY 8 | |
291 | ||
43a88a8c | 292 | /* A bit-field declared as `int' forces `int' alignment for the struct. */ |
eabd3262 RK |
293 | #define PCC_BITFIELD_TYPE_MATTERS 1 |
294 | ||
df74f099 JDA |
295 | /* No data type wants to be aligned rounder than this. The long double |
296 | type has 16-byte alignment on the 64-bit target even though it was never | |
297 | implemented in hardware. The software implementation only needs 8-byte | |
2bc99a1a | 298 | alignment. This matches the biggest alignment of the HP compilers. */ |
d6567b3a | 299 | #define BIGGEST_ALIGNMENT (2 * BITS_PER_WORD) |
eabd3262 | 300 | |
df74f099 JDA |
301 | /* Alignment, in bits, a C conformant malloc implementation has to provide. |
302 | The HP-UX malloc implementation provides a default alignment of 8 bytes. | |
2bc99a1a JDA |
303 | It should be 16 bytes on the 64-bit target since long double has 16-byte |
304 | alignment. It can be increased with mallopt but it's non critical since | |
305 | long double was never implemented in hardware. The glibc implementation | |
306 | currently provides 8-byte alignment. It should be 16 bytes since various | |
307 | POSIX types such as pthread_mutex_t require 16-byte alignment. Again, | |
308 | this is non critical since 16-byte alignment is no longer needed for | |
309 | atomic operations. */ | |
310 | #define MALLOC_ABI_ALIGNMENT (TARGET_SOM ? 64 : 128) | |
df74f099 | 311 | |
eabd3262 RK |
312 | /* Make arrays of chars word-aligned for the same reasons. */ |
313 | #define DATA_ALIGNMENT(TYPE, ALIGN) \ | |
314 | (TREE_CODE (TYPE) == ARRAY_TYPE \ | |
315 | && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ | |
316 | && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) | |
317 | ||
eabd3262 RK |
318 | /* Set this nonzero if move instructions will actually fail to work |
319 | when given unaligned data. */ | |
320 | #define STRICT_ALIGNMENT 1 | |
321 | ||
eabd3262 RK |
322 | /* Specify the registers used for certain standard purposes. |
323 | The values of these macros are register numbers. */ | |
324 | ||
3f8f5a3f | 325 | /* The HP-PA pc isn't overloaded on a register that the compiler knows about. */ |
eabd3262 RK |
326 | /* #define PC_REGNUM */ |
327 | ||
328 | /* Register to use for pushing function arguments. */ | |
329 | #define STACK_POINTER_REGNUM 30 | |
330 | ||
bc707992 JDA |
331 | /* Fixed register for local variable access. Always eliminated. */ |
332 | #define FRAME_POINTER_REGNUM (TARGET_64BIT ? 61 : 89) | |
333 | ||
eabd3262 | 334 | /* Base register for access to local variables of the function. */ |
bc707992 | 335 | #define HARD_FRAME_POINTER_REGNUM 3 |
eabd3262 | 336 | |
b5395c33 SE |
337 | /* Don't allow hard registers to be renamed into r2 unless r2 |
338 | is already live or already being saved (due to eh). */ | |
339 | ||
340 | #define HARD_REGNO_RENAME_OK(OLD_REG, NEW_REG) \ | |
e3b5732b | 341 | ((NEW_REG) != 2 || df_regs_ever_live_p (2) || crtl->calls_eh_return) |
b5395c33 | 342 | |
eabd3262 | 343 | /* Base register for access to arguments of the function. */ |
747e2d0e | 344 | #define ARG_POINTER_REGNUM (TARGET_64BIT ? 29 : 3) |
eabd3262 RK |
345 | |
346 | /* Register in which static-chain is passed to a function. */ | |
747e2d0e | 347 | #define STATIC_CHAIN_REGNUM (TARGET_64BIT ? 31 : 29) |
eabd3262 | 348 | |
3cf7104e | 349 | /* Register used to address the offset table for position-independent |
eabd3262 | 350 | data references. */ |
3cf7104e JDA |
351 | #define PIC_OFFSET_TABLE_REGNUM \ |
352 | (flag_pic ? (TARGET_64BIT ? 27 : 19) : INVALID_REGNUM) | |
eabd3262 | 353 | |
6bb36601 | 354 | #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1 |
eabd3262 | 355 | |
d777856d JDA |
356 | /* Function to return the rtx used to save the pic offset table register |
357 | across function calls. */ | |
984514ac | 358 | extern rtx hppa_pic_save_rtx (void); |
eabd3262 | 359 | |
451d86c2 | 360 | #define DEFAULT_PCC_STRUCT_RETURN 0 |
520babc7 | 361 | |
eabd3262 RK |
362 | /* Register in which address to store a structure value |
363 | is passed to a function. */ | |
3f12cd9b | 364 | #define PA_STRUCT_VALUE_REGNUM 28 |
e25724d8 | 365 | |
bc707992 JDA |
366 | /* Definitions for register eliminations. |
367 | ||
368 | We have two registers that can be eliminated. First, the frame pointer | |
369 | register can often be eliminated in favor of the stack pointer register. | |
370 | Secondly, the argument pointer register can always be eliminated in the | |
371 | 32-bit runtimes. */ | |
372 | ||
373 | /* This is an array of structures. Each structure initializes one pair | |
374 | of eliminable registers. The "from" register number is given first, | |
375 | followed by "to". Eliminations of the same "from" register are listed | |
376 | in order of preference. | |
377 | ||
378 | The argument pointer cannot be eliminated in the 64-bit runtime. It | |
379 | is the same register as the hard frame pointer in the 32-bit runtime. | |
380 | So, it does not need to be listed. */ | |
381 | #define ELIMINABLE_REGS \ | |
382 | {{ HARD_FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
383 | { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
384 | { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM} } | |
385 | ||
386 | /* Define the offset between two registers, one to be eliminated, | |
387 | and the other its replacement, at the start of a routine. */ | |
388 | #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
389 | ((OFFSET) = pa_initial_elimination_offset(FROM, TO)) | |
390 | ||
e25724d8 AM |
391 | /* Describe how we implement __builtin_eh_return. */ |
392 | #define EH_RETURN_DATA_REGNO(N) \ | |
47a4976f | 393 | ((N) < 3 ? (N) + 20 : (N) == 3 ? 31 : INVALID_REGNUM) |
e25724d8 | 394 | #define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 29) |
16c16a24 | 395 | #define EH_RETURN_HANDLER_RTX pa_eh_return_handler_rtx () |
823fbbce | 396 | |
9fb1c9db JDA |
397 | /* Offset from the frame pointer register value to the top of stack. */ |
398 | #define FRAME_POINTER_CFA_OFFSET(FNDECL) 0 | |
399 | ||
bc707992 JDA |
400 | /* The maximum number of hard registers that can be saved in the call |
401 | frame. The soft frame pointer is not included. */ | |
402 | #define DWARF_FRAME_REGISTERS (FIRST_PSEUDO_REGISTER - 1) | |
403 | ||
9fb1c9db JDA |
404 | /* A C expression whose value is RTL representing the location of the |
405 | incoming return address at the beginning of any function, before the | |
406 | prologue. You only need to define this macro if you want to support | |
407 | call frame debugging information like that provided by DWARF 2. */ | |
408 | #define INCOMING_RETURN_ADDR_RTX (gen_rtx_REG (word_mode, 2)) | |
409 | #define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2)) | |
410 | ||
411 | /* A C expression whose value is an integer giving a DWARF 2 column | |
412 | number that may be used as an alternate return column. This should | |
413 | be defined only if DWARF_FRAME_RETURN_COLUMN is set to a general | |
414 | register, but an alternate column needs to be used for signal frames. | |
415 | ||
416 | Column 0 is not used but unfortunately its register size is set to | |
417 | 4 bytes (sizeof CCmode) so it can't be used on 64-bit targets. */ | |
bc707992 | 418 | #define DWARF_ALT_FRAME_RETURN_COLUMN (FIRST_PSEUDO_REGISTER - 1) |
9fb1c9db JDA |
419 | |
420 | /* This macro chooses the encoding of pointers embedded in the exception | |
421 | handling sections. If at all possible, this should be defined such | |
422 | that the exception handling section will not require dynamic relocations, | |
423 | and so may be read-only. | |
424 | ||
425 | Because the HP assembler auto aligns, it is necessary to use | |
426 | DW_EH_PE_aligned. It's not possible to make the data read-only | |
427 | on the HP-UX SOM port since the linker requires fixups for label | |
428 | differences in different sections to be word aligned. However, | |
429 | the SOM linker can do unaligned fixups for absolute pointers. | |
430 | We also need aligned pointers for global and function pointers. | |
431 | ||
432 | Although the HP-UX 64-bit ELF linker can handle unaligned pc-relative | |
433 | fixups, the runtime doesn't have a consistent relationship between | |
434 | text and data for dynamically loaded objects. Thus, it's not possible | |
435 | to use pc-relative encoding for pointers on this target. It may be | |
436 | possible to use segment relative encodings but GAS doesn't currently | |
437 | have a mechanism to generate these encodings. For other targets, we | |
438 | use pc-relative encoding for pointers. If the pointer might require | |
439 | dynamic relocation, we make it indirect. */ | |
440 | #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ | |
441 | (TARGET_GAS && !TARGET_HPUX \ | |
442 | ? (DW_EH_PE_pcrel \ | |
443 | | ((GLOBAL) || (CODE) == 2 ? DW_EH_PE_indirect : 0) \ | |
444 | | (TARGET_64BIT ? DW_EH_PE_sdata8 : DW_EH_PE_sdata4)) \ | |
445 | : (!TARGET_GAS || (GLOBAL) || (CODE) == 2 \ | |
446 | ? DW_EH_PE_aligned : DW_EH_PE_absptr)) | |
447 | ||
448 | /* Handle special EH pointer encodings. Absolute, pc-relative, and | |
449 | indirect are handled automatically. We output pc-relative, and | |
450 | indirect pc-relative ourself since we need some special magic to | |
451 | generate pc-relative relocations, and to handle indirect function | |
452 | pointers. */ | |
453 | #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ | |
454 | do { \ | |
455 | if (((ENCODING) & 0x70) == DW_EH_PE_pcrel) \ | |
456 | { \ | |
457 | fputs (integer_asm_op (SIZE, FALSE), FILE); \ | |
458 | if ((ENCODING) & DW_EH_PE_indirect) \ | |
ae9d61ab | 459 | output_addr_const (FILE, pa_get_deferred_plabel (ADDR)); \ |
9fb1c9db JDA |
460 | else \ |
461 | assemble_name (FILE, XSTR ((ADDR), 0)); \ | |
462 | fputs ("+8-$PIC_pcrel$0", FILE); \ | |
463 | goto DONE; \ | |
464 | } \ | |
465 | } while (0) | |
eabd3262 | 466 | \f |
eabd3262 | 467 | |
88624c0e JL |
468 | /* The class value for index registers, and the one for base regs. */ |
469 | #define INDEX_REG_CLASS GENERAL_REGS | |
470 | #define BASE_REG_CLASS GENERAL_REGS | |
471 | ||
472 | #define FP_REG_CLASS_P(CLASS) \ | |
473 | ((CLASS) == FP_REGS || (CLASS) == FPUPPER_REGS) | |
474 | ||
475 | /* True if register is floating-point. */ | |
476 | #define FP_REGNO_P(N) ((N) >= FP_REG_FIRST && (N) <= FP_REG_LAST) | |
477 | ||
4b0d3cbe MM |
478 | #define MAYBE_FP_REG_CLASS_P(CLASS) \ |
479 | reg_classes_intersect_p ((CLASS), FP_REGS) | |
480 | ||
eabd3262 RK |
481 | \f |
482 | /* Stack layout; function entry, exit and calling. */ | |
483 | ||
484 | /* Define this if pushing a word on the stack | |
485 | makes the stack pointer a smaller address. */ | |
486 | /* #define STACK_GROWS_DOWNWARD */ | |
487 | ||
488 | /* Believe it or not. */ | |
376bddab | 489 | #define ARGS_GROW_DOWNWARD 1 |
eabd3262 | 490 | |
a4d05547 | 491 | /* Define this to nonzero if the nominal address of the stack frame |
eabd3262 RK |
492 | is at the high-address end of the local variables; |
493 | that is, each additional local variable allocated | |
494 | goes at a more negative offset in the frame. */ | |
f62c8a5c | 495 | #define FRAME_GROWS_DOWNWARD 0 |
eabd3262 RK |
496 | |
497 | /* Offset within stack frame to start allocating local variables at. | |
498 | If FRAME_GROWS_DOWNWARD, this is the offset to the END of the | |
499 | first local allocated. Otherwise, it is the offset to the BEGINNING | |
95f3f59e JDA |
500 | of the first local allocated. |
501 | ||
502 | On the 32-bit ports, we reserve one slot for the previous frame | |
503 | pointer and one fill slot. The fill slot is for compatibility | |
504 | with HP compiled programs. On the 64-bit ports, we reserve one | |
505 | slot for the previous frame pointer. */ | |
506 | #define STARTING_FRAME_OFFSET 8 | |
507 | ||
508 | /* Define STACK_ALIGNMENT_NEEDED to zero to disable final alignment | |
509 | of the stack. The default is to align it to STACK_BOUNDARY. */ | |
510 | #define STACK_ALIGNMENT_NEEDED 0 | |
eabd3262 RK |
511 | |
512 | /* If we generate an insn to push BYTES bytes, | |
513 | this says how many the stack pointer really advances by. | |
3f8f5a3f | 514 | On the HP-PA, don't define this because there are no push insns. */ |
eabd3262 RK |
515 | /* #define PUSH_ROUNDING(BYTES) */ |
516 | ||
517 | /* Offset of first parameter from the argument pointer register value. | |
518 | This value will be negated because the arguments grow down. | |
519 | Also note that on STACK_GROWS_UPWARD machines (such as this one) | |
520 | this is the distance from the frame pointer to the end of the first | |
521 | argument, not it's beginning. To get the real offset of the first | |
8c417c25 | 522 | argument, the size of the argument must be added. */ |
eabd3262 | 523 | |
520babc7 | 524 | #define FIRST_PARM_OFFSET(FNDECL) (TARGET_64BIT ? -64 : -32) |
eabd3262 | 525 | |
eabd3262 RK |
526 | /* When a parameter is passed in a register, stack space is still |
527 | allocated for it. */ | |
520babc7 | 528 | #define REG_PARM_STACK_SPACE(DECL) (TARGET_64BIT ? 64 : 16) |
eabd3262 RK |
529 | |
530 | /* Define this if the above stack space is to be considered part of the | |
531 | space allocated by the caller. */ | |
81464b2c | 532 | #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 |
eabd3262 RK |
533 | |
534 | /* Keep the stack pointer constant throughout the function. | |
535 | This is both an optimization and a necessity: longjmp | |
536 | doesn't behave itself when the stack pointer moves within | |
537 | the function! */ | |
f73ad30e | 538 | #define ACCUMULATE_OUTGOING_ARGS 1 |
5a1c10de TG |
539 | |
540 | /* The weird HPPA calling conventions require a minimum of 48 bytes on | |
eabd3262 RK |
541 | the stack: 16 bytes for register saves, and 32 bytes for magic. |
542 | This is the difference between the logical top of stack and the | |
685d0e07 JDA |
543 | actual sp. |
544 | ||
545 | On the 64-bit port, the HP C compiler allocates a 48-byte frame | |
546 | marker, although the runtime documentation only describes a 16 | |
547 | byte marker. For compatibility, we allocate 48 bytes. */ | |
520babc7 | 548 | #define STACK_POINTER_OFFSET \ |
38173d38 | 549 | (TARGET_64BIT ? -(crtl->outgoing_args_size + 48): -32) |
eabd3262 RK |
550 | |
551 | #define STACK_DYNAMIC_OFFSET(FNDECL) \ | |
520babc7 JL |
552 | (TARGET_64BIT \ |
553 | ? (STACK_POINTER_OFFSET) \ | |
38173d38 | 554 | : ((STACK_POINTER_OFFSET) - crtl->outgoing_args_size)) |
eabd3262 | 555 | |
eabd3262 RK |
556 | \f |
557 | /* Define a data type for recording info about an argument list | |
558 | during the scan of that argument list. This data type should | |
559 | hold all necessary information about the function itself | |
560 | and about the args processed so far, enough to enable macros | |
561 | such as FUNCTION_ARG to determine where the next arg should go. | |
562 | ||
c328adfa | 563 | On the HP-PA, the WORDS field holds the number of words |
eabd3262 | 564 | of arguments scanned so far (including the invisible argument, |
c328adfa JDA |
565 | if any, which holds the structure-value-address). Thus, 4 or |
566 | more means all following args should go on the stack. | |
567 | ||
568 | The INCOMING field tracks whether this is an "incoming" or | |
569 | "outgoing" argument. | |
570 | ||
026c3cfd | 571 | The INDIRECT field indicates whether this is an indirect |
c328adfa JDA |
572 | call or not. |
573 | ||
574 | The NARGS_PROTOTYPE field indicates that an argument does not | |
575 | have a prototype when it less than or equal to 0. */ | |
576 | ||
577 | struct hppa_args {int words, nargs_prototype, incoming, indirect; }; | |
2822d96e JL |
578 | |
579 | #define CUMULATIVE_ARGS struct hppa_args | |
eabd3262 RK |
580 | |
581 | /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
582 | for a call to a function whose data type is FNTYPE. | |
2822d96e | 583 | For a library call, FNTYPE is 0. */ |
eabd3262 | 584 | |
0f6937fe | 585 | #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \ |
2822d96e | 586 | (CUM).words = 0, \ |
c328adfa | 587 | (CUM).incoming = 0, \ |
563a317a | 588 | (CUM).indirect = (FNTYPE) && !(FNDECL), \ |
f4da8dce | 589 | (CUM).nargs_prototype = (FNTYPE && prototype_p (FNTYPE) \ |
2822d96e JL |
590 | ? (list_length (TYPE_ARG_TYPES (FNTYPE)) - 1 \ |
591 | + (TYPE_MODE (TREE_TYPE (FNTYPE)) == BLKmode \ | |
3f12cd9b | 592 | || pa_return_in_memory (TREE_TYPE (FNTYPE), 0))) \ |
2822d96e JL |
593 | : 0) |
594 | ||
595 | ||
596 | ||
597 | /* Similar, but when scanning the definition of a procedure. We always | |
bd625e21 | 598 | set NARGS_PROTOTYPE large so we never return a PARALLEL. */ |
2822d96e JL |
599 | |
600 | #define INIT_CUMULATIVE_INCOMING_ARGS(CUM,FNTYPE,IGNORE) \ | |
601 | (CUM).words = 0, \ | |
c328adfa | 602 | (CUM).incoming = 1, \ |
a5bbd4b8 | 603 | (CUM).indirect = 0, \ |
2822d96e | 604 | (CUM).nargs_prototype = 1000 |
eabd3262 | 605 | |
9dff28ab JDA |
606 | /* Figure out the size in words of the function argument. The size |
607 | returned by this macro should always be greater than zero because | |
608 | we pass variable and zero sized objects by reference. */ | |
eabd3262 RK |
609 | |
610 | #define FUNCTION_ARG_SIZE(MODE, TYPE) \ | |
d7735a07 | 611 | ((((MODE) != BLKmode \ |
6e9c53b4 | 612 | ? (HOST_WIDE_INT) GET_MODE_SIZE (MODE) \ |
d7735a07 | 613 | : int_size_in_bytes (TYPE)) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
eabd3262 | 614 | |
eabd3262 RK |
615 | /* Determine where to put an argument to a function. |
616 | Value is zero to push the argument on the stack, | |
617 | or a hard register in which to store the argument. | |
618 | ||
619 | MODE is the argument's machine mode. | |
620 | TYPE is the data type of the argument (as a tree). | |
621 | This is null for libcalls where that information may | |
622 | not be available. | |
623 | CUM is a variable of type CUMULATIVE_ARGS which gives info about | |
624 | the preceding args and about the function being called. | |
625 | NAMED is nonzero if this argument is a named parameter | |
2822d96e | 626 | (otherwise it is an extra parameter matching an ellipsis). |
eabd3262 | 627 | |
2822d96e | 628 | On the HP-PA the first four words of args are normally in registers |
eabd3262 | 629 | and the rest are pushed. But any arg that won't entirely fit in regs |
3d247e85 TM |
630 | is pushed. |
631 | ||
99977c61 RS |
632 | Arguments passed in registers are either 1 or 2 words long. |
633 | ||
634 | The caller must make a distinction between calls to explicitly named | |
635 | functions and calls through pointers to functions -- the conventions | |
636 | are different! Calls through pointers to functions only use general | |
279c9bde | 637 | registers for the first four argument words. |
eabd3262 | 638 | |
2822d96e JL |
639 | Of course all this is different for the portable runtime model |
640 | HP wants everyone to use for ELF. Ugh. Here's a quick description | |
641 | of how it's supposed to work. | |
642 | ||
643 | 1) callee side remains unchanged. It expects integer args to be | |
644 | in the integer registers, float args in the float registers and | |
645 | unnamed args in integer registers. | |
646 | ||
647 | 2) caller side now depends on if the function being called has | |
648 | a prototype in scope (rather than if it's being called indirectly). | |
649 | ||
650 | 2a) If there is a prototype in scope, then arguments are passed | |
651 | according to their type (ints in integer registers, floats in float | |
652 | registers, unnamed args in integer registers. | |
653 | ||
654 | 2b) If there is no prototype in scope, then floating point arguments | |
655 | are passed in both integer and float registers. egad. | |
656 | ||
657 | FYI: The portable parameter passing conventions are almost exactly like | |
658 | the standard parameter passing conventions on the RS6000. That's why | |
659 | you'll see lots of similar code in rs6000.h. */ | |
a40ed31b | 660 | |
7ea18c08 JDA |
661 | /* Specify padding for the last element of a block move between registers |
662 | and memory. | |
663 | ||
664 | The 64-bit runtime specifies that objects need to be left justified | |
665 | (i.e., the normal justification for a big endian target). The 32-bit | |
666 | runtime specifies right justification for objects smaller than 64 bits. | |
667 | We use a DImode register in the parallel for 5 to 7 byte structures | |
668 | so that there is only one element. This allows the object to be | |
669 | correctly padded. */ | |
ae8c9754 | 670 | #define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \ |
76b0cbf8 | 671 | targetm.calls.function_arg_padding ((MODE), (TYPE)) |
7ea18c08 | 672 | |
eabd3262 | 673 | \f |
1c7a8112 | 674 | /* On HPPA, we emit profiling code as rtl via PROFILE_HOOK rather than |
f6f315fe AM |
675 | as assembly via FUNCTION_PROFILER. Just output a local label. |
676 | We can't use the function label because the GAS SOM target can't | |
677 | handle the difference of a global symbol and a local symbol. */ | |
eabd3262 | 678 | |
f6f315fe AM |
679 | #ifndef FUNC_BEGIN_PROLOG_LABEL |
680 | #define FUNC_BEGIN_PROLOG_LABEL "LFBP" | |
681 | #endif | |
682 | ||
683 | #define FUNCTION_PROFILER(FILE, LABEL) \ | |
4977bab6 | 684 | (*targetm.asm_out.internal_label) (FILE, FUNC_BEGIN_PROLOG_LABEL, LABEL) |
eabd3262 | 685 | |
1c7a8112 | 686 | #define PROFILE_HOOK(label_no) hppa_profile_hook (label_no) |
b7849684 | 687 | void hppa_profile_hook (int label_no); |
eabd3262 | 688 | |
8f949e7e JDA |
689 | /* The profile counter if emitted must come before the prologue. */ |
690 | #define PROFILE_BEFORE_PROLOGUE 1 | |
691 | ||
3674b34d JDA |
692 | /* We never want final.c to emit profile counters. When profile |
693 | counters are required, we have to defer emitting them to the end | |
694 | of the current file. */ | |
695 | #define NO_PROFILE_COUNTERS 1 | |
696 | ||
eabd3262 RK |
697 | /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, |
698 | the stack pointer does not matter. The value is tested only in | |
699 | functions that have frame pointers. | |
700 | No definition is equivalent to always zero. */ | |
701 | ||
702 | extern int may_call_alloca; | |
eabd3262 RK |
703 | |
704 | #define EXIT_IGNORE_STACK \ | |
705 | (get_frame_size () != 0 \ | |
e3b5732b | 706 | || cfun->calls_alloca || crtl->outgoing_args_size) |
eabd3262 | 707 | |
3914c31f JDA |
708 | /* Length in units of the trampoline for entering a nested function. */ |
709 | ||
710 | #define TRAMPOLINE_SIZE (TARGET_64BIT ? 72 : 52) | |
afcc28b2 | 711 | |
859c146c | 712 | /* Alignment required by the trampoline. */ |
afcc28b2 | 713 | |
859c146c | 714 | #define TRAMPOLINE_ALIGNMENT BITS_PER_WORD |
f16fe394 | 715 | |
3914c31f JDA |
716 | /* Minimum length of a cache line. A length of 16 will work on all |
717 | PA-RISC processors. All PA 1.1 processors have a cache line of | |
718 | 32 bytes. Most but not all PA 2.0 processors have a cache line | |
719 | of 64 bytes. As cache flushes are expensive and we don't support | |
720 | PA 1.0, we use a minimum length of 32. */ | |
721 | ||
722 | #define MIN_CACHELINE_SIZE 32 | |
eabd3262 | 723 | |
eabd3262 | 724 | \f |
51c2de46 | 725 | /* Addressing modes, and classification of registers for them. |
eabd3262 | 726 | |
51c2de46 JQ |
727 | Using autoincrement addressing modes on PA8000 class machines is |
728 | not profitable. */ | |
eabd3262 | 729 | |
42a21f70 JQ |
730 | #define HAVE_POST_INCREMENT (pa_cpu < PROCESSOR_8000) |
731 | #define HAVE_POST_DECREMENT (pa_cpu < PROCESSOR_8000) | |
51c2de46 | 732 | |
42a21f70 JQ |
733 | #define HAVE_PRE_DECREMENT (pa_cpu < PROCESSOR_8000) |
734 | #define HAVE_PRE_INCREMENT (pa_cpu < PROCESSOR_8000) | |
eabd3262 RK |
735 | |
736 | /* Macros to check register numbers against specific register classes. */ | |
737 | ||
6af713e4 JDA |
738 | /* The following macros assume that X is a hard or pseudo reg number. |
739 | They give nonzero only if X is a hard reg of the suitable class | |
eabd3262 RK |
740 | or a pseudo reg currently allocated to a suitable hard reg. |
741 | Since they use reg_renumber, they are safe only once reg_renumber | |
aeb9f7cf SB |
742 | has been allocated, which happens in reginfo.c during register |
743 | allocation. */ | |
eabd3262 | 744 | |
6af713e4 JDA |
745 | #define REGNO_OK_FOR_INDEX_P(X) \ |
746 | ((X) && ((X) < 32 \ | |
bc707992 JDA |
747 | || ((X) == FRAME_POINTER_REGNUM) \ |
748 | || ((X) >= FIRST_PSEUDO_REGISTER \ | |
6af713e4 JDA |
749 | && reg_renumber \ |
750 | && (unsigned) reg_renumber[X] < 32))) | |
751 | #define REGNO_OK_FOR_BASE_P(X) \ | |
752 | ((X) && ((X) < 32 \ | |
bc707992 JDA |
753 | || ((X) == FRAME_POINTER_REGNUM) \ |
754 | || ((X) >= FIRST_PSEUDO_REGISTER \ | |
6af713e4 JDA |
755 | && reg_renumber \ |
756 | && (unsigned) reg_renumber[X] < 32))) | |
757 | #define REGNO_OK_FOR_FP_P(X) \ | |
758 | (FP_REGNO_P (X) \ | |
759 | || (X >= FIRST_PSEUDO_REGISTER \ | |
760 | && reg_renumber \ | |
761 | && FP_REGNO_P (reg_renumber[X]))) | |
eabd3262 RK |
762 | |
763 | /* Now macros that check whether X is a register and also, | |
764 | strictly, whether it is in a specified class. | |
765 | ||
38e01259 | 766 | These macros are specific to the HP-PA, and may be used only |
eabd3262 RK |
767 | in code for printing assembler insns and in conditions for |
768 | define_optimization. */ | |
769 | ||
770 | /* 1 if X is an fp register. */ | |
771 | ||
772 | #define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X))) | |
773 | \f | |
774 | /* Maximum number of registers that can appear in a valid memory address. */ | |
775 | ||
776 | #define MAX_REGS_PER_ADDRESS 2 | |
777 | ||
d92f4df0 JDA |
778 | /* TLS symbolic reference. */ |
779 | #define PA_SYMBOL_REF_TLS_P(X) \ | |
780 | (GET_CODE (X) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (X) != 0) | |
51076f96 | 781 | |
901a8cea JL |
782 | /* Recognize any constant value that is a valid address except |
783 | for symbolic addresses. We get better CSE by rejecting them | |
6eff269e BK |
784 | here and allowing hppa_legitimize_address to break them up. We |
785 | use most of the constants accepted by CONSTANT_P, except CONST_DOUBLE. */ | |
eabd3262 | 786 | |
901a8cea | 787 | #define CONSTANT_ADDRESS_P(X) \ |
51076f96 RC |
788 | ((GET_CODE (X) == LABEL_REF \ |
789 | || (GET_CODE (X) == SYMBOL_REF && !SYMBOL_REF_TLS_MODEL (X)) \ | |
d92f4df0 | 790 | || GET_CODE (X) == CONST_INT \ |
093a6c99 | 791 | || (GET_CODE (X) == CONST && !tls_referenced_p (X)) \ |
6e11a328 | 792 | || GET_CODE (X) == HIGH) \ |
ae9d61ab JDA |
793 | && (reload_in_progress || reload_completed \ |
794 | || ! pa_symbolic_expression_p (X))) | |
6eff269e | 795 | |
a4295210 | 796 | /* A C expression that is nonzero if we are using the new HP assembler. */ |
520babc7 | 797 | |
8d913d99 AM |
798 | #ifndef NEW_HP_ASSEMBLER |
799 | #define NEW_HP_ASSEMBLER 0 | |
f45ebe47 | 800 | #endif |
a4295210 JDA |
801 | |
802 | /* The macros below define the immediate range for CONST_INTS on | |
803 | the 64-bit port. Constants in this range can be loaded in three | |
804 | instructions using a ldil/ldo/depdi sequence. Constants outside | |
805 | this range are forced to the constant pool prior to reload. */ | |
806 | ||
807 | #define MAX_LEGIT_64BIT_CONST_INT ((HOST_WIDE_INT) 32 << 31) | |
50fa47d9 JL |
808 | #define MIN_LEGIT_64BIT_CONST_INT \ |
809 | ((HOST_WIDE_INT)((unsigned HOST_WIDE_INT) -32 << 31)) | |
a4295210 JDA |
810 | #define LEGITIMATE_64BIT_CONST_INT_P(X) \ |
811 | ((X) >= MIN_LEGIT_64BIT_CONST_INT && (X) < MAX_LEGIT_64BIT_CONST_INT) | |
812 | ||
744b2d61 JDA |
813 | /* Target flags set on a symbol_ref. */ |
814 | ||
815 | /* Set by ASM_OUTPUT_SYMBOL_REF when a symbol_ref is output. */ | |
816 | #define SYMBOL_FLAG_REFERENCED (1 << SYMBOL_FLAG_MACH_DEP_SHIFT) | |
817 | #define SYMBOL_REF_REFERENCED_P(RTX) \ | |
818 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_REFERENCED) != 0) | |
819 | ||
5b281141 | 820 | /* Defines for constraints.md. */ |
eabd3262 | 821 | |
d8f95bed JDA |
822 | /* Return 1 iff OP is a scaled or unscaled index address. */ |
823 | #define IS_INDEX_ADDR_P(OP) \ | |
824 | (GET_CODE (OP) == PLUS \ | |
825 | && GET_MODE (OP) == Pmode \ | |
826 | && (GET_CODE (XEXP (OP, 0)) == MULT \ | |
827 | || GET_CODE (XEXP (OP, 1)) == MULT \ | |
828 | || (REG_P (XEXP (OP, 0)) \ | |
829 | && REG_P (XEXP (OP, 1))))) | |
830 | ||
831 | /* Return 1 iff OP is a LO_SUM DLT address. */ | |
832 | #define IS_LO_SUM_DLT_ADDR_P(OP) \ | |
833 | (GET_CODE (OP) == LO_SUM \ | |
834 | && GET_MODE (OP) == Pmode \ | |
835 | && REG_P (XEXP (OP, 0)) \ | |
836 | && REG_OK_FOR_BASE_P (XEXP (OP, 0)) \ | |
837 | && GET_CODE (XEXP (OP, 1)) == UNSPEC) | |
838 | ||
6982c5d4 JDA |
839 | /* Nonzero if 14-bit offsets can be used for all loads and stores. |
840 | This is not possible when generating PA 1.x code as floating point | |
841 | loads and stores only support 5-bit offsets. Note that we do not | |
1a04ac2b JDA |
842 | forbid the use of 14-bit offsets for integer modes. Instead, we |
843 | use secondary reloads to fix REG+D memory addresses for integer | |
844 | mode floating-point loads and stores. | |
6982c5d4 JDA |
845 | |
846 | FIXME: the ELF32 linker clobbers the LSB of the FP register number | |
847 | in PA 2.0 floating-point insns with long displacements. This is | |
848 | because R_PARISC_DPREL14WR and other relocations like it are not | |
849 | yet supported by GNU ld. For now, we reject long displacements | |
850 | on this target. */ | |
851 | ||
852 | #define INT14_OK_STRICT \ | |
853 | (TARGET_SOFT_FLOAT \ | |
854 | || TARGET_DISABLE_FPREGS \ | |
855 | || (TARGET_PA_20 && !TARGET_ELF32)) | |
856 | ||
16594451 JL |
857 | /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx |
858 | and check its validity for a certain class. | |
859 | We have two alternate definitions for each of them. | |
860 | The usual definition accepts all pseudo regs; the other rejects | |
861 | them unless they have been allocated suitable hard regs. | |
16594451 JL |
862 | |
863 | Most source files want to accept pseudo regs in the hope that | |
864 | they will get allocated to the class that the insn wants them to be in. | |
865 | Source files for reload pass need to be strict. | |
866 | After reload, it makes no difference, since pseudo regs have | |
867 | been eliminated by then. */ | |
ec241c19 | 868 | |
eabd3262 RK |
869 | /* Nonzero if X is a hard reg that can be used as an index |
870 | or if it is a pseudo reg. */ | |
871 | #define REG_OK_FOR_INDEX_P(X) \ | |
bc707992 JDA |
872 | (REGNO (X) && (REGNO (X) < 32 \ |
873 | || REGNO (X) == FRAME_POINTER_REGNUM \ | |
874 | || REGNO (X) >= FIRST_PSEUDO_REGISTER)) | |
6982c5d4 | 875 | |
eabd3262 RK |
876 | /* Nonzero if X is a hard reg that can be used as a base reg |
877 | or if it is a pseudo reg. */ | |
878 | #define REG_OK_FOR_BASE_P(X) \ | |
bc707992 JDA |
879 | (REGNO (X) && (REGNO (X) < 32 \ |
880 | || REGNO (X) == FRAME_POINTER_REGNUM \ | |
881 | || REGNO (X) >= FIRST_PSEUDO_REGISTER)) | |
eabd3262 | 882 | |
eabd3262 | 883 | /* Nonzero if X is a hard reg that can be used as an index. */ |
1a04ac2b | 884 | #define STRICT_REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) |
6982c5d4 | 885 | |
eabd3262 | 886 | /* Nonzero if X is a hard reg that can be used as a base reg. */ |
1a04ac2b | 887 | #define STRICT_REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) |
eabd3262 | 888 | |
520babc7 | 889 | #define VAL_5_BITS_P(X) ((unsigned HOST_WIDE_INT)(X) + 0x10 < 0x20) |
eabd3262 RK |
890 | #define INT_5_BITS(X) VAL_5_BITS_P (INTVAL (X)) |
891 | ||
520babc7 | 892 | #define VAL_U5_BITS_P(X) ((unsigned HOST_WIDE_INT)(X) < 0x20) |
eabd3262 RK |
893 | #define INT_U5_BITS(X) VAL_U5_BITS_P (INTVAL (X)) |
894 | ||
f6f94d94 JDA |
895 | #define VAL_U6_BITS_P(X) ((unsigned HOST_WIDE_INT)(X) < 0x40) |
896 | #define INT_U6_BITS(X) VAL_U6_BITS_P (INTVAL (X)) | |
897 | ||
520babc7 | 898 | #define VAL_11_BITS_P(X) ((unsigned HOST_WIDE_INT)(X) + 0x400 < 0x800) |
eabd3262 RK |
899 | #define INT_11_BITS(X) VAL_11_BITS_P (INTVAL (X)) |
900 | ||
520babc7 | 901 | #define VAL_14_BITS_P(X) ((unsigned HOST_WIDE_INT)(X) + 0x2000 < 0x4000) |
eabd3262 RK |
902 | #define INT_14_BITS(X) VAL_14_BITS_P (INTVAL (X)) |
903 | ||
a4295210 JDA |
904 | #if HOST_BITS_PER_WIDE_INT > 32 |
905 | #define VAL_32_BITS_P(X) \ | |
906 | ((unsigned HOST_WIDE_INT)(X) + ((unsigned HOST_WIDE_INT) 1 << 31) \ | |
907 | < (unsigned HOST_WIDE_INT) 2 << 31) | |
908 | #else | |
909 | #define VAL_32_BITS_P(X) 1 | |
910 | #endif | |
911 | #define INT_32_BITS(X) VAL_32_BITS_P (INTVAL (X)) | |
912 | ||
d8f95bed JDA |
913 | /* These are the modes that we allow for scaled indexing. */ |
914 | #define MODE_OK_FOR_SCALED_INDEXING_P(MODE) \ | |
915 | ((TARGET_64BIT && (MODE) == DImode) \ | |
916 | || (MODE) == SImode \ | |
917 | || (MODE) == HImode \ | |
6982c5d4 JDA |
918 | || (MODE) == SFmode \ |
919 | || (MODE) == DFmode) | |
d8f95bed JDA |
920 | |
921 | /* These are the modes that we allow for unscaled indexing. */ | |
922 | #define MODE_OK_FOR_UNSCALED_INDEXING_P(MODE) \ | |
923 | ((TARGET_64BIT && (MODE) == DImode) \ | |
924 | || (MODE) == SImode \ | |
925 | || (MODE) == HImode \ | |
926 | || (MODE) == QImode \ | |
6982c5d4 JDA |
927 | || (MODE) == SFmode \ |
928 | || (MODE) == DFmode) | |
d8f95bed | 929 | |
1a04ac2b JDA |
930 | /* Try a machine-dependent way of reloading an illegitimate address |
931 | operand. If we find one, push the reload and jump to WIN. This | |
932 | macro is used in only one place: `find_reloads_address' in reload.c. */ | |
933 | ||
934 | #define LEGITIMIZE_RELOAD_ADDRESS(AD, MODE, OPNUM, TYPE, IND_L, WIN) \ | |
935 | do { \ | |
936 | rtx new_ad = pa_legitimize_reload_address (AD, MODE, OPNUM, TYPE, IND_L); \ | |
937 | if (new_ad) \ | |
938 | { \ | |
939 | AD = new_ad; \ | |
940 | goto WIN; \ | |
941 | } \ | |
cc46ae8e JL |
942 | } while (0) |
943 | ||
eabd3262 | 944 | \f |
ae46c4e0 | 945 | #define TARGET_ASM_SELECT_SECTION pa_select_section |
774acadf | 946 | |
62910663 JDA |
947 | /* Return a nonzero value if DECL has a section attribute. */ |
948 | #define IN_NAMED_SECTION_P(DECL) \ | |
949 | ((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \ | |
f961457f | 950 | && DECL_SECTION_NAME (DECL) != NULL) |
62910663 | 951 | |
e7eacc8e JL |
952 | /* Define this macro if references to a symbol must be treated |
953 | differently depending on something about the variable or | |
954 | function named by the symbol (such as what section it is in). | |
955 | ||
956 | The macro definition, if any, is executed immediately after the | |
957 | rtl for DECL or other node is created. | |
958 | The value of the rtl will be a `mem' whose address is a | |
959 | `symbol_ref'. | |
960 | ||
961 | The usual thing for this macro to do is to a flag in the | |
962 | `symbol_ref' (such as `SYMBOL_REF_FLAG') or to store a modified | |
963 | name string in the `symbol_ref' (if one bit is not enough | |
964 | information). | |
965 | ||
966 | On the HP-PA we use this to indicate if a symbol is in text or | |
fe19a83d | 967 | data space. Also, function labels need special treatment. */ |
e7eacc8e JL |
968 | |
969 | #define TEXT_SPACE_P(DECL)\ | |
970 | (TREE_CODE (DECL) == FUNCTION_DECL \ | |
971 | || (TREE_CODE (DECL) == VAR_DECL \ | |
972 | && TREE_READONLY (DECL) && ! TREE_SIDE_EFFECTS (DECL) \ | |
ae9d61ab | 973 | && (! DECL_INITIAL (DECL) || ! pa_reloc_needed (DECL_INITIAL (DECL))) \ |
e7eacc8e | 974 | && !flag_pic) \ |
6615c446 | 975 | || CONSTANT_CLASS_P (DECL)) |
e7eacc8e | 976 | |
10d17cb7 | 977 | #define FUNCTION_NAME_P(NAME) (*(NAME) == '@') |
e7eacc8e | 978 | |
cb4d476c | 979 | /* Specify the machine mode that this machine uses for the index in the |
33e67557 SB |
980 | tablejump instruction. We use a 32-bit absolute address for non-pic code, |
981 | and a 32-bit offset for 32 and 64-bit pic code. */ | |
982 | #define CASE_VECTOR_MODE SImode | |
cb4d476c JDA |
983 | |
984 | /* Jump tables must be 32-bit aligned, no matter the size of the element. */ | |
937ac3f9 JL |
985 | #define ADDR_VEC_ALIGN(ADDR_VEC) 2 |
986 | ||
eabd3262 RK |
987 | /* Define this as 1 if `char' should by default be signed; else as 0. */ |
988 | #define DEFAULT_SIGNED_CHAR 1 | |
989 | ||
990 | /* Max number of bytes we can move from memory to memory | |
991 | in one reasonably fast instruction. */ | |
992 | #define MOVE_MAX 8 | |
993 | ||
68944452 JL |
994 | /* Higher than the default as we prefer to use simple move insns |
995 | (better scheduling and delay slot filling) and because our | |
520babc7 JL |
996 | built-in block move is really a 2X unrolled loop. |
997 | ||
998 | Believe it or not, this has to be big enough to allow for copying all | |
999 | arguments passed in registers to avoid infinite recursion during argument | |
1000 | setup for a function call. Why? Consider how we copy the stack slots | |
1001 | reserved for parameters when they may be trashed by a call. */ | |
e04ad03d | 1002 | #define MOVE_RATIO(speed) (TARGET_64BIT ? 8 : 4) |
68944452 | 1003 | |
9a63901f RK |
1004 | /* Define if operations between registers always perform the operation |
1005 | on the full register even if a narrower mode is specified. */ | |
9e11bfef | 1006 | #define WORD_REGISTER_OPERATIONS 1 |
9a63901f RK |
1007 | |
1008 | /* Define if loading in MODE, an integral mode narrower than BITS_PER_WORD | |
1009 | will either zero-extend or sign-extend. The value of this macro should | |
1010 | be the code that says which one of the two operations is implicitly | |
f822d252 | 1011 | done, UNKNOWN if none. */ |
9a63901f | 1012 | #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND |
eabd3262 RK |
1013 | |
1014 | /* Nonzero if access to memory by bytes is slow and undesirable. */ | |
1015 | #define SLOW_BYTE_ACCESS 1 | |
1016 | ||
eabd3262 RK |
1017 | /* Specify the machine mode that pointers have. |
1018 | After generation of rtl, the compiler makes no further distinction | |
1019 | between pointers and any other objects of this machine mode. */ | |
0a16ce6f | 1020 | #define Pmode word_mode |
eabd3262 | 1021 | |
eabd3262 RK |
1022 | /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE, |
1023 | return the mode to be used for the comparison. For floating-point, CCFPmode | |
1024 | should be used. CC_NOOVmode should be used when the first operand is a | |
1025 | PLUS, MINUS, or NEG. CCmode should be used when no special processing is | |
1026 | needed. */ | |
b565a316 | 1027 | #define SELECT_CC_MODE(OP,X,Y) \ |
eabd3262 RK |
1028 | (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT ? CCFPmode : CCmode) \ |
1029 | ||
1030 | /* A function address in a call instruction | |
1031 | is a byte address (for indexing purposes) | |
1032 | so give the MEM rtx a byte's mode. */ | |
1033 | #define FUNCTION_MODE SImode | |
5a1c10de | 1034 | |
eabd3262 RK |
1035 | /* Define this if addresses of constant functions |
1036 | shouldn't be put through pseudo regs where they can be cse'd. | |
1037 | Desirable on machines where ordinary constants are expensive | |
1038 | but a CALL with constant address is cheap. */ | |
1e8552c2 | 1039 | #define NO_FUNCTION_CSE 1 |
eabd3262 | 1040 | |
d969caf8 | 1041 | /* Define this to be nonzero if shift instructions ignore all but the low-order |
fe19a83d | 1042 | few bits. */ |
d969caf8 | 1043 | #define SHIFT_COUNT_TRUNCATED 1 |
e061ef25 | 1044 | |
3e47bea8 | 1045 | /* Adjust the cost of branches. */ |
3a4fd356 | 1046 | #define BRANCH_COST(speed_p, predictable_p) (pa_cpu == PROCESSOR_8000 ? 2 : 1) |
3e47bea8 | 1047 | |
04664e24 RS |
1048 | /* Handling the special cases is going to get too complicated for a macro, |
1049 | just call `pa_adjust_insn_length' to do the real work. */ | |
ab11fb42 JDA |
1050 | #define ADJUST_INSN_LENGTH(INSN, LENGTH) \ |
1051 | ((LENGTH) = pa_adjust_insn_length ((INSN), (LENGTH))) | |
04664e24 | 1052 | |
72abf941 JL |
1053 | /* Millicode insns are actually function calls with some special |
1054 | constraints on arguments and register usage. | |
1055 | ||
1056 | Millicode calls always expect their arguments in the integer argument | |
1057 | registers, and always return their result in %r29 (ret1). They | |
7d8b1412 AM |
1058 | are expected to clobber their arguments, %r1, %r29, and the return |
1059 | pointer which is %r31 on 32-bit and %r2 on 64-bit, and nothing else. | |
72abf941 | 1060 | |
2561a923 JL |
1061 | This macro tells reorg that the references to arguments and |
1062 | millicode calls do not appear to happen until after the millicode call. | |
1063 | This allows reorg to put insns which set the argument registers into the | |
1064 | delay slot of the millicode call -- thus they act more like traditional | |
1065 | CALL_INSNs. | |
1066 | ||
1e5f1716 | 1067 | Note we cannot consider side effects of the insn to be delayed because |
2561a923 JL |
1068 | the branch and link insn will clobber the return pointer. If we happened |
1069 | to use the return pointer in the delay slot of the call, then we lose. | |
72abf941 JL |
1070 | |
1071 | get_attr_type will try to recognize the given insn, so make sure to | |
d0ca05ef RS |
1072 | filter out things it will not accept -- SEQUENCE, USE and CLOBBER insns |
1073 | in particular. */ | |
ae9d61ab | 1074 | #define INSN_REFERENCES_ARE_DELAYED(X) (pa_insn_refs_are_delayed (X)) |
72abf941 | 1075 | |
eabd3262 RK |
1076 | \f |
1077 | /* Control the assembler format that we output. */ | |
1078 | ||
e08fde98 JDA |
1079 | /* A C string constant describing how to begin a comment in the target |
1080 | assembler language. The compiler assumes that the comment will end at | |
1081 | the end of the line. */ | |
1082 | ||
1083 | #define ASM_COMMENT_START ";" | |
1084 | ||
eabd3262 RK |
1085 | /* Output to assembler file text saying following lines |
1086 | may contain character constants, extra white space, comments, etc. */ | |
1087 | ||
1088 | #define ASM_APP_ON "" | |
1089 | ||
1090 | /* Output to assembler file text saying following lines | |
1091 | no longer contain unusual constructs. */ | |
1092 | ||
1093 | #define ASM_APP_OFF "" | |
1094 | ||
eabd3262 RK |
1095 | /* This is how to output the definition of a user-level label named NAME, |
1096 | such as the label on a static function or variable NAME. */ | |
1097 | ||
179cd3d3 JDA |
1098 | #define ASM_OUTPUT_LABEL(FILE,NAME) \ |
1099 | do { \ | |
1100 | assemble_name ((FILE), (NAME)); \ | |
1101 | if (TARGET_GAS) \ | |
1102 | fputs (":\n", (FILE)); \ | |
1103 | else \ | |
1104 | fputc ('\n', (FILE)); \ | |
1105 | } while (0) | |
eabd3262 | 1106 | |
eabd3262 RK |
1107 | /* This is how to output a reference to a user-level label named NAME. |
1108 | `assemble_name' uses this. */ | |
1109 | ||
1110 | #define ASM_OUTPUT_LABELREF(FILE,NAME) \ | |
7830ba7b JDA |
1111 | do { \ |
1112 | const char *xname = (NAME); \ | |
1113 | if (FUNCTION_NAME_P (NAME)) \ | |
1114 | xname += 1; \ | |
1115 | if (xname[0] == '*') \ | |
1116 | xname += 1; \ | |
1117 | else \ | |
1118 | fputs (user_label_prefix, FILE); \ | |
1119 | fputs (xname, FILE); \ | |
1120 | } while (0) | |
eabd3262 | 1121 | |
744b2d61 JDA |
1122 | /* This how we output the symbol_ref X. */ |
1123 | ||
1124 | #define ASM_OUTPUT_SYMBOL_REF(FILE,X) \ | |
1125 | do { \ | |
1126 | SYMBOL_REF_FLAGS (X) |= SYMBOL_FLAG_REFERENCED; \ | |
1127 | assemble_name (FILE, XSTR (X, 0)); \ | |
1128 | } while (0) | |
1129 | ||
eabd3262 RK |
1130 | /* This is how to store into the string LABEL |
1131 | the symbol_ref name of an internal numbered label where | |
1132 | PREFIX is the class of label and NUM is the number within the class. | |
1133 | This is suitable for output with `assemble_name'. */ | |
1134 | ||
1135 | #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ | |
e59f7d3d | 1136 | sprintf (LABEL, "*%c$%s%04ld", (PREFIX)[0], (PREFIX) + 1, (long)(NUM)) |
eabd3262 | 1137 | |
179cd3d3 JDA |
1138 | /* Output the definition of a compiler-generated label named NAME. */ |
1139 | ||
1140 | #define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME) \ | |
1141 | do { \ | |
1142 | assemble_name_raw ((FILE), (NAME)); \ | |
1143 | if (TARGET_GAS) \ | |
1144 | fputs (":\n", (FILE)); \ | |
1145 | else \ | |
1146 | fputc ('\n', (FILE)); \ | |
1147 | } while (0) | |
1148 | ||
5eb99654 | 1149 | #define TARGET_ASM_GLOBALIZE_LABEL pa_globalize_label |
e7eacc8e | 1150 | |
eabd3262 | 1151 | #define ASM_OUTPUT_ASCII(FILE, P, SIZE) \ |
ae9d61ab | 1152 | pa_output_ascii ((FILE), (P), (SIZE)) |
eabd3262 | 1153 | |
cb4d476c | 1154 | /* Jump tables are always placed in the text section. Technically, it |
33e67557 SB |
1155 | is possible to put them in the readonly data section. This has the |
1156 | benefit of getting the table out of .text and reducing branch lengths | |
1157 | as a result. | |
1158 | ||
1159 | The downside is that an additional insn (addil) is needed to access | |
1160 | the table when generating PIC code. The address difference table | |
1161 | also has to use 32-bit pc-relative relocations. Currently, GAS does | |
1162 | not support these relocations, although it is easily modified to do | |
1163 | this operation. | |
1164 | ||
cb4d476c JDA |
1165 | The table entries need to look like "$L1+(.+8-$L0)-$PIC_pcrel$0" |
1166 | when using ELF GAS. A simple difference can be used when using | |
1167 | SOM GAS or the HP assembler. The final downside is GDB complains | |
1168 | about the nesting of the label for the table when debugging. */ | |
eabd3262 | 1169 | |
75197b37 | 1170 | #define JUMP_TABLES_IN_TEXT_SECTION 1 |
63671b34 | 1171 | |
cb4d476c | 1172 | /* This is how to output an element of a case-vector that is absolute. */ |
cface026 | 1173 | |
cb4d476c | 1174 | #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ |
33e67557 | 1175 | fprintf (FILE, "\t.word L$%04d\n", VALUE) |
cb4d476c JDA |
1176 | |
1177 | /* This is how to output an element of a case-vector that is relative. | |
1178 | Since we always place jump tables in the text section, the difference | |
1179 | is absolute and requires no relocation. */ | |
eabd3262 | 1180 | |
33f7f353 | 1181 | #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
33e67557 | 1182 | fprintf (FILE, "\t.word L$%04d-L$%04d\n", VALUE, REL) |
eabd3262 | 1183 | |
3ba07ad3 JDA |
1184 | /* This is how to output an absolute case-vector. */ |
1185 | ||
1186 | #define ASM_OUTPUT_ADDR_VEC(LAB,BODY) \ | |
1187 | pa_output_addr_vec ((LAB),(BODY)) | |
1188 | ||
1189 | /* This is how to output a relative case-vector. */ | |
1190 | ||
1191 | #define ASM_OUTPUT_ADDR_DIFF_VEC(LAB,BODY) \ | |
1192 | pa_output_addr_diff_vec ((LAB),(BODY)) | |
1193 | ||
cb4d476c JDA |
1194 | /* This is how to output an assembler line that says to advance the |
1195 | location counter to a multiple of 2**LOG bytes. */ | |
eabd3262 RK |
1196 | |
1197 | #define ASM_OUTPUT_ALIGN(FILE,LOG) \ | |
1198 | fprintf (FILE, "\t.align %d\n", (1<<(LOG))) | |
1199 | ||
1200 | #define ASM_OUTPUT_SKIP(FILE,SIZE) \ | |
16998094 | 1201 | fprintf (FILE, "\t.blockz " HOST_WIDE_INT_PRINT_UNSIGNED"\n", \ |
78cabff8 | 1202 | (unsigned HOST_WIDE_INT)(SIZE)) |
eabd3262 | 1203 | |
d4482715 JDA |
1204 | /* This says how to output an assembler line to define an uninitialized |
1205 | global variable with size SIZE (in bytes) and alignment ALIGN (in bits). | |
1206 | This macro exists to properly support languages like C++ which do not | |
1207 | have common data. */ | |
1208 | ||
1209 | #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
1210 | pa_asm_output_aligned_bss (FILE, NAME, SIZE, ALIGN) | |
1211 | ||
6b282118 JL |
1212 | /* This says how to output an assembler line to define a global common symbol |
1213 | with size SIZE (in bytes) and alignment ALIGN (in bits). */ | |
a291e551 | 1214 | |
d4482715 JDA |
1215 | #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ |
1216 | pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN) | |
a291e551 | 1217 | |
6b282118 | 1218 | /* This says how to output an assembler line to define a local common symbol |
d4482715 JDA |
1219 | with size SIZE (in bytes) and alignment ALIGN (in bits). This macro |
1220 | controls how the assembler definitions of uninitialized static variables | |
1221 | are output. */ | |
eabd3262 | 1222 | |
d4482715 JDA |
1223 | #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ |
1224 | pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN) | |
1225 | ||
5921f26b | 1226 | /* All HP assemblers use "!" to separate logical lines. */ |
980d8882 | 1227 | #define IS_ASM_LOGICAL_LINE_SEPARATOR(C, STR) ((C) == '!') |
5921f26b | 1228 | |
eabd3262 RK |
1229 | /* Print operand X (an rtx) in assembler syntax to file FILE. |
1230 | CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. | |
1231 | For `%' followed by punctuation, CODE is the punctuation and X is null. | |
1232 | ||
3f8f5a3f | 1233 | On the HP-PA, the CODE can be `r', meaning this is a register-only operand |
eabd3262 RK |
1234 | and an immediate zero should be represented as `r0'. |
1235 | ||
1236 | Several % codes are defined: | |
1237 | O an operation | |
1238 | C compare conditions | |
1239 | N extract conditions | |
1240 | M modifier to handle preincrement addressing for memory refs. | |
1241 | F modifier to handle preincrement addressing for fp memory refs */ | |
1242 | ||
ae9d61ab | 1243 | #define PRINT_OPERAND(FILE, X, CODE) pa_print_operand (FILE, X, CODE) |
eabd3262 RK |
1244 | |
1245 | \f | |
1246 | /* Print a memory address as an operand to reference that memory location. */ | |
1247 | ||
1248 | #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ | |
03eb45c1 | 1249 | { rtx addr = ADDR; \ |
eabd3262 RK |
1250 | switch (GET_CODE (addr)) \ |
1251 | { \ | |
1252 | case REG: \ | |
d2d28085 | 1253 | fprintf (FILE, "0(%s)", reg_names [REGNO (addr)]); \ |
eabd3262 RK |
1254 | break; \ |
1255 | case PLUS: \ | |
03eb45c1 NS |
1256 | gcc_assert (GET_CODE (XEXP (addr, 1)) == CONST_INT); \ |
1257 | fprintf (FILE, "%d(%s)", (int)INTVAL (XEXP (addr, 1)), \ | |
1258 | reg_names [REGNO (XEXP (addr, 0))]); \ | |
eabd3262 RK |
1259 | break; \ |
1260 | case LO_SUM: \ | |
519104fe | 1261 | if (!symbolic_operand (XEXP (addr, 1), VOIDmode)) \ |
0f8f654e RK |
1262 | fputs ("R'", FILE); \ |
1263 | else if (flag_pic == 0) \ | |
1264 | fputs ("RR'", FILE); \ | |
7ee72796 | 1265 | else \ |
6bb36601 | 1266 | fputs ("RT'", FILE); \ |
ae9d61ab | 1267 | pa_output_global_address (FILE, XEXP (addr, 1), 0); \ |
eabd3262 RK |
1268 | fputs ("(", FILE); \ |
1269 | output_operand (XEXP (addr, 0), 0); \ | |
1270 | fputs (")", FILE); \ | |
1271 | break; \ | |
09a1d028 | 1272 | case CONST_INT: \ |
4a0a75dd | 1273 | fprintf (FILE, HOST_WIDE_INT_PRINT_DEC "(%%r0)", INTVAL (addr)); \ |
09a1d028 | 1274 | break; \ |
eabd3262 RK |
1275 | default: \ |
1276 | output_addr_const (FILE, addr); \ | |
1277 | }} | |
1278 | ||
1279 | \f | |
e99d6592 MS |
1280 | /* Find the return address associated with the frame given by |
1281 | FRAMEADDR. */ | |
1282 | #define RETURN_ADDR_RTX(COUNT, FRAMEADDR) \ | |
ae9d61ab | 1283 | (pa_return_addr_rtx (COUNT, FRAMEADDR)) |
bbe79f84 MS |
1284 | |
1285 | /* Used to mask out junk bits from the return address, such as | |
1286 | processor state, interrupt status, condition codes and the like. */ | |
e99d6592 MS |
1287 | #define MASK_RETURN_ADDR \ |
1288 | /* The privilege level is in the two low order bits, mask em out \ | |
bbe79f84 | 1289 | of the return address. */ \ |
2a2ea744 | 1290 | (GEN_INT (-4)) |
27a36778 | 1291 | |
bf97847b JDA |
1292 | /* We need a libcall to canonicalize function pointers on TARGET_ELF32. */ |
1293 | #define CANONICALIZE_FUNCPTR_FOR_COMPARE_LIBCALL \ | |
1294 | "__canonicalize_funcptr_for_compare" | |
51076f96 RC |
1295 | |
1296 | #ifdef HAVE_AS_TLS | |
1297 | #undef TARGET_HAVE_TLS | |
1298 | #define TARGET_HAVE_TLS true | |
1299 | #endif | |
a43434ff JDA |
1300 | |
1301 | /* The maximum offset in bytes for a PA 1.X pc-relative call to the | |
1302 | head of the preceding stub table. The selected offsets have been | |
1303 | chosen so that approximately one call stub is allocated for every | |
1304 | 86.7 instructions. A long branch stub is two instructions when | |
1305 | not generating PIC code. For HP-UX and ELF targets, PIC stubs are | |
1306 | seven and four instructions, respectively. */ | |
1307 | #define MAX_PCREL17F_OFFSET \ | |
1308 | (flag_pic ? (TARGET_HPUX ? 198164 : 221312) : 240000) |