1 /* Definitions of target machine for GNU compiler, for IBM RS/6000.
2 Copyright (C) 1992-2017 Free Software Foundation, Inc.
3 Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
9 by the Free Software Foundation; either version 3, or (at your
10 option) any later version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
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.
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/>. */
26 /* Note that some other tm.h files include this one and then override
27 many of the definitions. */
30 #include "config/rs6000/rs6000-opts.h"
33 /* Definitions for the object file format. These are set at
36 #define OBJECT_XCOFF 1
39 #define OBJECT_MACHO 4
41 #define TARGET_ELF (TARGET_OBJECT_FORMAT == OBJECT_ELF)
42 #define TARGET_XCOFF (TARGET_OBJECT_FORMAT == OBJECT_XCOFF)
43 #define TARGET_MACOS (TARGET_OBJECT_FORMAT == OBJECT_PEF)
44 #define TARGET_MACHO (TARGET_OBJECT_FORMAT == OBJECT_MACHO)
51 #define TARGET_AIX_OS 0
54 /* Control whether function entry points use a "dot" symbol when
58 /* Default string to use for cpu if not specified. */
59 #ifndef TARGET_CPU_DEFAULT
60 #define TARGET_CPU_DEFAULT ((char *)0)
63 /* If configured for PPC405, support PPC405CR Erratum77. */
64 #ifdef CONFIG_PPC405CR
65 #define PPC405_ERRATUM77 (rs6000_cpu == PROCESSOR_PPC405)
67 #define PPC405_ERRATUM77 0
70 #ifndef TARGET_PAIRED_FLOAT
71 #define TARGET_PAIRED_FLOAT 0
74 #ifdef HAVE_AS_POPCNTB
75 #define ASM_CPU_POWER5_SPEC "-mpower5"
77 #define ASM_CPU_POWER5_SPEC "-mpower4"
81 #define ASM_CPU_POWER6_SPEC "-mpower6 -maltivec"
83 #define ASM_CPU_POWER6_SPEC "-mpower4 -maltivec"
86 #ifdef HAVE_AS_POPCNTD
87 #define ASM_CPU_POWER7_SPEC "-mpower7"
89 #define ASM_CPU_POWER7_SPEC "-mpower4 -maltivec"
93 #define ASM_CPU_POWER8_SPEC "-mpower8"
95 #define ASM_CPU_POWER8_SPEC ASM_CPU_POWER7_SPEC
99 #define ASM_CPU_POWER9_SPEC "-mpower9"
101 #define ASM_CPU_POWER9_SPEC ASM_CPU_POWER8_SPEC
105 #define ASM_CPU_476_SPEC "-m476"
107 #define ASM_CPU_476_SPEC "-mpower4"
110 /* Common ASM definitions used by ASM_SPEC among the various targets for
111 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to
112 provide the default assembler options if the user uses -mcpu=native, so if
113 you make changes here, make them also there. */
114 #define ASM_CPU_SPEC \
116 %{mpowerpc64*: -mppc64} \
117 %{!mpowerpc64*: %(asm_default)}} \
118 %{mcpu=native: %(asm_cpu_native)} \
119 %{mcpu=cell: -mcell} \
120 %{mcpu=power3: -mppc64} \
121 %{mcpu=power4: -mpower4} \
122 %{mcpu=power5: %(asm_cpu_power5)} \
123 %{mcpu=power5+: %(asm_cpu_power5)} \
124 %{mcpu=power6: %(asm_cpu_power6) -maltivec} \
125 %{mcpu=power6x: %(asm_cpu_power6) -maltivec} \
126 %{mcpu=power7: %(asm_cpu_power7)} \
127 %{mcpu=power8: %(asm_cpu_power8)} \
128 %{mcpu=power9: %(asm_cpu_power9)} \
130 %{mcpu=powerpc: -mppc} \
131 %{mcpu=powerpc64le: %(asm_cpu_power8)} \
132 %{mcpu=rs64a: -mppc64} \
136 %{mcpu=405fp: -m405} \
138 %{mcpu=440fp: -m440} \
140 %{mcpu=464fp: -m440} \
141 %{mcpu=476: %(asm_cpu_476)} \
142 %{mcpu=476fp: %(asm_cpu_476)} \
147 %{mcpu=603e: -mppc} \
148 %{mcpu=ec603e: -mppc} \
150 %{mcpu=604e: -mppc} \
151 %{mcpu=620: -mppc64} \
152 %{mcpu=630: -mppc64} \
156 %{mcpu=7400: -mppc -maltivec} \
157 %{mcpu=7450: -mppc -maltivec} \
158 %{mcpu=G4: -mppc -maltivec} \
163 %{mcpu=970: -mpower4 -maltivec} \
164 %{mcpu=G5: -mpower4 -maltivec} \
165 %{mcpu=8540: -me500} \
166 %{mcpu=8548: -me500} \
167 %{mcpu=e300c2: -me300} \
168 %{mcpu=e300c3: -me300} \
169 %{mcpu=e500mc: -me500mc} \
170 %{mcpu=e500mc64: -me500mc64} \
171 %{mcpu=e5500: -me5500} \
172 %{mcpu=e6500: -me6500} \
173 %{maltivec: -maltivec} \
174 %{mvsx: -mvsx %{!maltivec: -maltivec} %{!mcpu*: %(asm_cpu_power7)}} \
175 %{mpower8-vector|mcrypto|mdirect-move|mhtm: %{!mcpu*: %(asm_cpu_power8)}} \
178 #define CPP_DEFAULT_SPEC ""
180 #define ASM_DEFAULT_SPEC ""
182 /* This macro defines names of additional specifications to put in the specs
183 that can be used in various specifications like CC1_SPEC. Its definition
184 is an initializer with a subgrouping for each command option.
186 Each subgrouping contains a string constant, that defines the
187 specification name, and a string constant that used by the GCC driver
190 Do not define this macro if it does not need to do anything. */
192 #define SUBTARGET_EXTRA_SPECS
194 #define EXTRA_SPECS \
195 { "cpp_default", CPP_DEFAULT_SPEC }, \
196 { "asm_cpu", ASM_CPU_SPEC }, \
197 { "asm_cpu_native", ASM_CPU_NATIVE_SPEC }, \
198 { "asm_default", ASM_DEFAULT_SPEC }, \
199 { "cc1_cpu", CC1_CPU_SPEC }, \
200 { "asm_cpu_power5", ASM_CPU_POWER5_SPEC }, \
201 { "asm_cpu_power6", ASM_CPU_POWER6_SPEC }, \
202 { "asm_cpu_power7", ASM_CPU_POWER7_SPEC }, \
203 { "asm_cpu_power8", ASM_CPU_POWER8_SPEC }, \
204 { "asm_cpu_power9", ASM_CPU_POWER9_SPEC }, \
205 { "asm_cpu_476", ASM_CPU_476_SPEC }, \
206 SUBTARGET_EXTRA_SPECS
208 /* -mcpu=native handling only makes sense with compiler running on
209 an PowerPC chip. If changing this condition, also change
210 the condition in driver-rs6000.c. */
211 #if defined(__powerpc__) || defined(__POWERPC__) || defined(_AIX)
212 /* In driver-rs6000.c. */
213 extern const char *host_detect_local_cpu (int argc
, const char **argv
);
214 #define EXTRA_SPEC_FUNCTIONS \
215 { "local_cpu_detect", host_detect_local_cpu },
216 #define HAVE_LOCAL_CPU_DETECT
217 #define ASM_CPU_NATIVE_SPEC "%:local_cpu_detect(asm)"
220 #define ASM_CPU_NATIVE_SPEC "%(asm_default)"
224 #ifdef HAVE_LOCAL_CPU_DETECT
225 #define CC1_CPU_SPEC \
226 "%{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)} \
227 %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
229 #define CC1_CPU_SPEC ""
233 /* Architecture type. */
235 /* Define TARGET_MFCRF if the target assembler does not support the
236 optional field operand for mfcr. */
238 #ifndef HAVE_AS_MFCRF
240 #define TARGET_MFCRF 0
243 /* Define TARGET_POPCNTB if the target assembler does not support the
244 popcount byte instruction. */
246 #ifndef HAVE_AS_POPCNTB
247 #undef TARGET_POPCNTB
248 #define TARGET_POPCNTB 0
251 /* Define TARGET_FPRND if the target assembler does not support the
252 fp rounding instructions. */
254 #ifndef HAVE_AS_FPRND
256 #define TARGET_FPRND 0
259 /* Define TARGET_CMPB if the target assembler does not support the
264 #define TARGET_CMPB 0
267 /* Define TARGET_MFPGPR if the target assembler does not support the
268 mffpr and mftgpr instructions. */
270 #ifndef HAVE_AS_MFPGPR
272 #define TARGET_MFPGPR 0
275 /* Define TARGET_DFP if the target assembler does not support decimal
276 floating point instructions. */
282 /* Define TARGET_POPCNTD if the target assembler does not support the
283 popcount word and double word instructions. */
285 #ifndef HAVE_AS_POPCNTD
286 #undef TARGET_POPCNTD
287 #define TARGET_POPCNTD 0
290 /* Define the ISA 2.07 flags as 0 if the target assembler does not support the
291 waitasecond instruction. Allow -mpower8-fusion, since it does not add new
294 #ifndef HAVE_AS_POWER8
295 #undef TARGET_DIRECT_MOVE
298 #undef TARGET_P8_VECTOR
299 #define TARGET_DIRECT_MOVE 0
300 #define TARGET_CRYPTO 0
302 #define TARGET_P8_VECTOR 0
305 /* Define the ISA 3.0 flags as 0 if the target assembler does not support
306 Power9 instructions. Allow -mpower9-fusion, since it does not add new
307 instructions. Allow -misel, since it predates ISA 3.0 and does
308 not require any Power9 features. */
310 #ifndef HAVE_AS_POWER9
311 #undef TARGET_FLOAT128_HW
313 #undef TARGET_P9_VECTOR
314 #undef TARGET_P9_MINMAX
315 #undef TARGET_P9_MISC
316 #define TARGET_FLOAT128_HW 0
317 #define TARGET_MODULO 0
318 #define TARGET_P9_VECTOR 0
319 #define TARGET_P9_MINMAX 0
320 #define TARGET_P9_MISC 0
323 /* Define TARGET_LWSYNC_INSTRUCTION if the assembler knows about lwsync. If
324 not, generate the lwsync code as an integer constant. */
325 #ifdef HAVE_AS_LWSYNC
326 #define TARGET_LWSYNC_INSTRUCTION 1
328 #define TARGET_LWSYNC_INSTRUCTION 0
331 /* Define TARGET_TLS_MARKERS if the target assembler does not support
332 arg markers for __tls_get_addr calls. */
333 #ifndef HAVE_AS_TLS_MARKERS
334 #undef TARGET_TLS_MARKERS
335 #define TARGET_TLS_MARKERS 0
337 #define TARGET_TLS_MARKERS tls_markers
340 #ifndef TARGET_SECURE_PLT
341 #define TARGET_SECURE_PLT 0
344 #ifndef TARGET_CMODEL
345 #define TARGET_CMODEL CMODEL_SMALL
348 #define TARGET_32BIT (! TARGET_64BIT)
351 #define HAVE_AS_TLS 0
354 #ifndef TARGET_LINK_STACK
355 #define TARGET_LINK_STACK 0
358 #ifndef SET_TARGET_LINK_STACK
359 #define SET_TARGET_LINK_STACK(X) do { } while (0)
362 #ifndef TARGET_FLOAT128_ENABLE_TYPE
363 #define TARGET_FLOAT128_ENABLE_TYPE 0
366 /* Return 1 for a symbol ref for a thread-local storage symbol. */
367 #define RS6000_SYMBOL_REF_TLS_P(RTX) \
368 (GET_CODE (RTX) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (RTX) != 0)
371 /* For libgcc2 we make sure this is a compile time constant */
372 #if defined (__64BIT__) || defined (__powerpc64__) || defined (__ppc64__)
373 #undef TARGET_POWERPC64
374 #define TARGET_POWERPC64 1
376 #undef TARGET_POWERPC64
377 #define TARGET_POWERPC64 0
380 /* The option machinery will define this. */
383 #define TARGET_DEFAULT (MASK_MULTIPLE | MASK_STRING)
385 /* FPU operations supported.
386 Each use of TARGET_SINGLE_FLOAT or TARGET_DOUBLE_FLOAT must
387 also test TARGET_HARD_FLOAT. */
388 #define TARGET_SINGLE_FLOAT 1
389 #define TARGET_DOUBLE_FLOAT 1
390 #define TARGET_SINGLE_FPU 0
391 #define TARGET_SIMPLE_FPU 0
392 #define TARGET_XILINX_FPU 0
394 /* Define generic processor types based upon current deployment. */
395 #define PROCESSOR_COMMON PROCESSOR_PPC601
396 #define PROCESSOR_POWERPC PROCESSOR_PPC604
397 #define PROCESSOR_POWERPC64 PROCESSOR_RS64A
399 /* Define the default processor. This is overridden by other tm.h files. */
400 #define PROCESSOR_DEFAULT PROCESSOR_PPC603
401 #define PROCESSOR_DEFAULT64 PROCESSOR_RS64A
403 /* Specify the dialect of assembler to use. Only new mnemonics are supported
404 starting with GCC 4.8, i.e. just one dialect, but for backwards
405 compatibility with older inline asm ASSEMBLER_DIALECT needs to be
407 #define ASSEMBLER_DIALECT 1
410 #define MASK_DEBUG_STACK 0x01 /* debug stack applications */
411 #define MASK_DEBUG_ARG 0x02 /* debug argument handling */
412 #define MASK_DEBUG_REG 0x04 /* debug register handling */
413 #define MASK_DEBUG_ADDR 0x08 /* debug memory addressing */
414 #define MASK_DEBUG_COST 0x10 /* debug rtx codes */
415 #define MASK_DEBUG_TARGET 0x20 /* debug target attribute/pragma */
416 #define MASK_DEBUG_BUILTIN 0x40 /* debug builtins */
417 #define MASK_DEBUG_ALL (MASK_DEBUG_STACK \
422 | MASK_DEBUG_TARGET \
423 | MASK_DEBUG_BUILTIN)
425 #define TARGET_DEBUG_STACK (rs6000_debug & MASK_DEBUG_STACK)
426 #define TARGET_DEBUG_ARG (rs6000_debug & MASK_DEBUG_ARG)
427 #define TARGET_DEBUG_REG (rs6000_debug & MASK_DEBUG_REG)
428 #define TARGET_DEBUG_ADDR (rs6000_debug & MASK_DEBUG_ADDR)
429 #define TARGET_DEBUG_COST (rs6000_debug & MASK_DEBUG_COST)
430 #define TARGET_DEBUG_TARGET (rs6000_debug & MASK_DEBUG_TARGET)
431 #define TARGET_DEBUG_BUILTIN (rs6000_debug & MASK_DEBUG_BUILTIN)
433 /* Helper macros for TFmode. Quad floating point (TFmode) can be either IBM
434 long double format that uses a pair of doubles, or IEEE 128-bit floating
435 point. KFmode was added as a way to represent IEEE 128-bit floating point,
436 even if the default for long double is the IBM long double format.
437 Similarly IFmode is the IBM long double format even if the default is IEEE
438 128-bit. Don't allow IFmode if -msoft-float. */
439 #define FLOAT128_IEEE_P(MODE) \
440 ((TARGET_IEEEQUAD && ((MODE) == TFmode || (MODE) == TCmode)) \
441 || ((MODE) == KFmode) || ((MODE) == KCmode))
443 #define FLOAT128_IBM_P(MODE) \
444 ((!TARGET_IEEEQUAD && ((MODE) == TFmode || (MODE) == TCmode)) \
445 || (TARGET_HARD_FLOAT && ((MODE) == IFmode || (MODE) == ICmode)))
447 /* Helper macros to say whether a 128-bit floating point type can go in a
448 single vector register, or whether it needs paired scalar values. */
449 #define FLOAT128_VECTOR_P(MODE) (TARGET_FLOAT128_TYPE && FLOAT128_IEEE_P (MODE))
451 #define FLOAT128_2REG_P(MODE) \
452 (FLOAT128_IBM_P (MODE) \
453 || ((MODE) == TDmode) \
454 || (!TARGET_FLOAT128_TYPE && FLOAT128_IEEE_P (MODE)))
456 /* Return true for floating point that does not use a vector register. */
457 #define SCALAR_FLOAT_MODE_NOT_VECTOR_P(MODE) \
458 (SCALAR_FLOAT_MODE_P (MODE) && !FLOAT128_VECTOR_P (MODE))
460 /* Describe the vector unit used for arithmetic operations. */
461 extern enum rs6000_vector rs6000_vector_unit
[];
463 #define VECTOR_UNIT_NONE_P(MODE) \
464 (rs6000_vector_unit[(MODE)] == VECTOR_NONE)
466 #define VECTOR_UNIT_VSX_P(MODE) \
467 (rs6000_vector_unit[(MODE)] == VECTOR_VSX)
469 #define VECTOR_UNIT_P8_VECTOR_P(MODE) \
470 (rs6000_vector_unit[(MODE)] == VECTOR_P8_VECTOR)
472 #define VECTOR_UNIT_ALTIVEC_P(MODE) \
473 (rs6000_vector_unit[(MODE)] == VECTOR_ALTIVEC)
475 #define VECTOR_UNIT_VSX_OR_P8_VECTOR_P(MODE) \
476 (IN_RANGE ((int)rs6000_vector_unit[(MODE)], \
478 (int)VECTOR_P8_VECTOR))
480 /* VECTOR_UNIT_ALTIVEC_OR_VSX_P is used in places where we are using either
481 altivec (VMX) or VSX vector instructions. P8 vector support is upwards
482 compatible, so allow it as well, rather than changing all of the uses of the
484 #define VECTOR_UNIT_ALTIVEC_OR_VSX_P(MODE) \
485 (IN_RANGE ((int)rs6000_vector_unit[(MODE)], \
486 (int)VECTOR_ALTIVEC, \
487 (int)VECTOR_P8_VECTOR))
489 /* Describe whether to use VSX loads or Altivec loads. For now, just use the
490 same unit as the vector unit we are using, but we may want to migrate to
491 using VSX style loads even for types handled by altivec. */
492 extern enum rs6000_vector rs6000_vector_mem
[];
494 #define VECTOR_MEM_NONE_P(MODE) \
495 (rs6000_vector_mem[(MODE)] == VECTOR_NONE)
497 #define VECTOR_MEM_VSX_P(MODE) \
498 (rs6000_vector_mem[(MODE)] == VECTOR_VSX)
500 #define VECTOR_MEM_P8_VECTOR_P(MODE) \
501 (rs6000_vector_mem[(MODE)] == VECTOR_VSX)
503 #define VECTOR_MEM_ALTIVEC_P(MODE) \
504 (rs6000_vector_mem[(MODE)] == VECTOR_ALTIVEC)
506 #define VECTOR_MEM_VSX_OR_P8_VECTOR_P(MODE) \
507 (IN_RANGE ((int)rs6000_vector_mem[(MODE)], \
509 (int)VECTOR_P8_VECTOR))
511 #define VECTOR_MEM_ALTIVEC_OR_VSX_P(MODE) \
512 (IN_RANGE ((int)rs6000_vector_mem[(MODE)], \
513 (int)VECTOR_ALTIVEC, \
514 (int)VECTOR_P8_VECTOR))
516 /* Return the alignment of a given vector type, which is set based on the
517 vector unit use. VSX for instance can load 32 or 64 bit aligned words
518 without problems, while Altivec requires 128-bit aligned vectors. */
519 extern int rs6000_vector_align
[];
521 #define VECTOR_ALIGN(MODE) \
522 ((rs6000_vector_align[(MODE)] != 0) \
523 ? rs6000_vector_align[(MODE)] \
524 : (int)GET_MODE_BITSIZE ((MODE)))
526 /* Determine the element order to use for vector instructions. By
527 default we use big-endian element order when targeting big-endian,
528 and little-endian element order when targeting little-endian. For
529 programs being ported from BE Power to LE Power, it can sometimes
530 be useful to use big-endian element order when targeting little-endian.
531 This is set via -maltivec=be, for example. */
532 #define VECTOR_ELT_ORDER_BIG \
533 (BYTES_BIG_ENDIAN || (rs6000_altivec_element_order == 2))
535 /* Element number of the 64-bit value in a 128-bit vector that can be accessed
536 with scalar instructions. */
537 #define VECTOR_ELEMENT_SCALAR_64BIT ((BYTES_BIG_ENDIAN) ? 0 : 1)
539 /* Element number of the 64-bit value in a 128-bit vector that can be accessed
540 with the ISA 3.0 MFVSRLD instructions. */
541 #define VECTOR_ELEMENT_MFVSRLD_64BIT ((BYTES_BIG_ENDIAN) ? 1 : 0)
543 /* Alignment options for fields in structures for sub-targets following
545 ALIGN_POWER word-aligns FP doubles (default AIX ABI).
546 ALIGN_NATURAL doubleword-aligns FP doubles (align to object size).
548 Override the macro definitions when compiling libobjc to avoid undefined
549 reference to rs6000_alignment_flags due to library's use of GCC alignment
550 macros which use the macros below. */
552 #ifndef IN_TARGET_LIBS
553 #define MASK_ALIGN_POWER 0x00000000
554 #define MASK_ALIGN_NATURAL 0x00000001
555 #define TARGET_ALIGN_NATURAL (rs6000_alignment_flags & MASK_ALIGN_NATURAL)
557 #define TARGET_ALIGN_NATURAL 0
560 #define TARGET_LONG_DOUBLE_128 (rs6000_long_double_type_size == 128)
561 #define TARGET_IEEEQUAD rs6000_ieeequad
562 #define TARGET_ALTIVEC_ABI rs6000_altivec_abi
563 #define TARGET_LDBRX (TARGET_POPCNTD || rs6000_cpu == PROCESSOR_CELL)
565 /* ISA 2.01 allowed FCFID to be done in 32-bit, previously it was 64-bit only.
566 Enable 32-bit fcfid's on any of the switches for newer ISA machines or
568 #define TARGET_FCFID (TARGET_POWERPC64 \
569 || TARGET_PPC_GPOPT /* 970/power4 */ \
570 || TARGET_POPCNTB /* ISA 2.02 */ \
571 || TARGET_CMPB /* ISA 2.05 */ \
572 || TARGET_POPCNTD /* ISA 2.06 */ \
573 || TARGET_XILINX_FPU)
575 #define TARGET_FCTIDZ TARGET_FCFID
576 #define TARGET_STFIWX TARGET_PPC_GFXOPT
577 #define TARGET_LFIWAX TARGET_CMPB
578 #define TARGET_LFIWZX TARGET_POPCNTD
579 #define TARGET_FCFIDS TARGET_POPCNTD
580 #define TARGET_FCFIDU TARGET_POPCNTD
581 #define TARGET_FCFIDUS TARGET_POPCNTD
582 #define TARGET_FCTIDUZ TARGET_POPCNTD
583 #define TARGET_FCTIWUZ TARGET_POPCNTD
584 #define TARGET_CTZ TARGET_MODULO
585 #define TARGET_EXTSWSLI (TARGET_MODULO && TARGET_POWERPC64)
586 #define TARGET_MADDLD (TARGET_MODULO && TARGET_POWERPC64)
588 #define TARGET_XSCVDPSPN (TARGET_DIRECT_MOVE || TARGET_P8_VECTOR)
589 #define TARGET_XSCVSPDPN (TARGET_DIRECT_MOVE || TARGET_P8_VECTOR)
590 #define TARGET_VADDUQM (TARGET_P8_VECTOR && TARGET_POWERPC64)
591 #define TARGET_DIRECT_MOVE_128 (TARGET_P9_VECTOR && TARGET_DIRECT_MOVE \
593 #define TARGET_VEXTRACTUB (TARGET_P9_VECTOR && TARGET_DIRECT_MOVE \
596 /* Whether we should avoid (SUBREG:SI (REG:SF) and (SUBREG:SF (REG:SI). */
597 #define TARGET_NO_SF_SUBREG TARGET_DIRECT_MOVE_64BIT
598 #define TARGET_ALLOW_SF_SUBREG (!TARGET_DIRECT_MOVE_64BIT)
600 /* This wants to be set for p8 and newer. On p7, overlapping unaligned
602 #define TARGET_EFFICIENT_OVERLAPPING_UNALIGNED TARGET_EFFICIENT_UNALIGNED_VSX
604 /* Byte/char syncs were added as phased in for ISA 2.06B, but are not present
605 in power7, so conditionalize them on p8 features. TImode syncs need quad
607 #define TARGET_SYNC_HI_QI (TARGET_QUAD_MEMORY \
608 || TARGET_QUAD_MEMORY_ATOMIC \
609 || TARGET_DIRECT_MOVE)
611 #define TARGET_SYNC_TI TARGET_QUAD_MEMORY_ATOMIC
613 /* Power7 has both 32-bit load and store integer for the FPRs, so we don't need
614 to allocate the SDmode stack slot to get the value into the proper location
616 #define TARGET_NO_SDMODE_STACK (TARGET_LFIWZX && TARGET_STFIWX && TARGET_DFP)
618 /* ISA 3.0 has new min/max functions that don't need fast math that are being
619 phased in. Min/max using FSEL or XSMAXDP/XSMINDP do not return the correct
620 answers if the arguments are not in the normal range. */
621 #define TARGET_MINMAX_SF (TARGET_SF_FPR && TARGET_PPC_GFXOPT \
622 && (TARGET_P9_MINMAX || !flag_trapping_math))
624 #define TARGET_MINMAX_DF (TARGET_DF_FPR && TARGET_PPC_GFXOPT \
625 && (TARGET_P9_MINMAX || !flag_trapping_math))
627 /* In switching from using target_flags to using rs6000_isa_flags, the options
628 machinery creates OPTION_MASK_<xxx> instead of MASK_<xxx>. For now map
629 OPTION_MASK_<xxx> back into MASK_<xxx>. */
630 #define MASK_ALTIVEC OPTION_MASK_ALTIVEC
631 #define MASK_CMPB OPTION_MASK_CMPB
632 #define MASK_CRYPTO OPTION_MASK_CRYPTO
633 #define MASK_DFP OPTION_MASK_DFP
634 #define MASK_DIRECT_MOVE OPTION_MASK_DIRECT_MOVE
635 #define MASK_DLMZB OPTION_MASK_DLMZB
636 #define MASK_EABI OPTION_MASK_EABI
637 #define MASK_FLOAT128_KEYWORD OPTION_MASK_FLOAT128_KEYWORD
638 #define MASK_FLOAT128_HW OPTION_MASK_FLOAT128_HW
639 #define MASK_FPRND OPTION_MASK_FPRND
640 #define MASK_P8_FUSION OPTION_MASK_P8_FUSION
641 #define MASK_HARD_FLOAT OPTION_MASK_HARD_FLOAT
642 #define MASK_HTM OPTION_MASK_HTM
643 #define MASK_ISEL OPTION_MASK_ISEL
644 #define MASK_MFCRF OPTION_MASK_MFCRF
645 #define MASK_MFPGPR OPTION_MASK_MFPGPR
646 #define MASK_MULHW OPTION_MASK_MULHW
647 #define MASK_MULTIPLE OPTION_MASK_MULTIPLE
648 #define MASK_NO_UPDATE OPTION_MASK_NO_UPDATE
649 #define MASK_P8_VECTOR OPTION_MASK_P8_VECTOR
650 #define MASK_P9_VECTOR OPTION_MASK_P9_VECTOR
651 #define MASK_P9_MISC OPTION_MASK_P9_MISC
652 #define MASK_POPCNTB OPTION_MASK_POPCNTB
653 #define MASK_POPCNTD OPTION_MASK_POPCNTD
654 #define MASK_PPC_GFXOPT OPTION_MASK_PPC_GFXOPT
655 #define MASK_PPC_GPOPT OPTION_MASK_PPC_GPOPT
656 #define MASK_RECIP_PRECISION OPTION_MASK_RECIP_PRECISION
657 #define MASK_SOFT_FLOAT OPTION_MASK_SOFT_FLOAT
658 #define MASK_STRICT_ALIGN OPTION_MASK_STRICT_ALIGN
659 #define MASK_STRING OPTION_MASK_STRING
660 #define MASK_UPDATE OPTION_MASK_UPDATE
661 #define MASK_VSX OPTION_MASK_VSX
664 #define MASK_POWERPC64 OPTION_MASK_POWERPC64
668 #define MASK_64BIT OPTION_MASK_64BIT
671 #ifdef TARGET_LITTLE_ENDIAN
672 #define MASK_LITTLE_ENDIAN OPTION_MASK_LITTLE_ENDIAN
675 #ifdef TARGET_REGNAMES
676 #define MASK_REGNAMES OPTION_MASK_REGNAMES
679 #ifdef TARGET_PROTOTYPE
680 #define MASK_PROTOTYPE OPTION_MASK_PROTOTYPE
684 #define RS6000_BTM_MODULO OPTION_MASK_MODULO
688 /* For power systems, we want to enable Altivec and VSX builtins even if the
689 user did not use -maltivec or -mvsx to allow the builtins to be used inside
690 of #pragma GCC target or the target attribute to change the code level for a
691 given system. The Paired builtins are only enabled if you configure the
692 compiler for those builtins, and those machines don't support altivec or
695 #define TARGET_EXTRA_BUILTINS (!TARGET_PAIRED_FLOAT \
696 && ((TARGET_POWERPC64 \
697 || TARGET_PPC_GPOPT /* 970/power4 */ \
698 || TARGET_POPCNTB /* ISA 2.02 */ \
699 || TARGET_CMPB /* ISA 2.05 */ \
700 || TARGET_POPCNTD /* ISA 2.06 */ \
703 || TARGET_HARD_FLOAT)))
705 /* E500 cores only support plain "sync", not lwsync. */
706 #define TARGET_NO_LWSYNC (rs6000_cpu == PROCESSOR_PPC8540 \
707 || rs6000_cpu == PROCESSOR_PPC8548)
710 /* Whether SF/DF operations are supported by the normal floating point unit
711 (or the vector/scalar unit). */
712 #define TARGET_SF_FPR (TARGET_HARD_FLOAT && TARGET_SINGLE_FLOAT)
713 #define TARGET_DF_FPR (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT)
715 /* Whether SF/DF operations are supported by any hardware. */
716 #define TARGET_SF_INSN TARGET_SF_FPR
717 #define TARGET_DF_INSN TARGET_DF_FPR
719 /* Which machine supports the various reciprocal estimate instructions. */
720 #define TARGET_FRES (TARGET_HARD_FLOAT && TARGET_PPC_GFXOPT \
721 && TARGET_SINGLE_FLOAT)
723 #define TARGET_FRE (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT \
724 && (TARGET_POPCNTB || VECTOR_UNIT_VSX_P (DFmode)))
726 #define TARGET_FRSQRTES (TARGET_HARD_FLOAT && TARGET_POPCNTB \
727 && TARGET_PPC_GFXOPT && TARGET_SINGLE_FLOAT)
729 #define TARGET_FRSQRTE (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT \
730 && (TARGET_PPC_GFXOPT || VECTOR_UNIT_VSX_P (DFmode)))
732 /* Conditions to allow TOC fusion for loading/storing integers. */
733 #define TARGET_TOC_FUSION_INT (TARGET_P8_FUSION \
734 && TARGET_TOC_FUSION \
735 && (TARGET_CMODEL != CMODEL_SMALL) \
738 /* Conditions to allow TOC fusion for loading/storing floating point. */
739 #define TARGET_TOC_FUSION_FP (TARGET_P9_FUSION \
740 && TARGET_TOC_FUSION \
741 && (TARGET_CMODEL != CMODEL_SMALL) \
742 && TARGET_POWERPC64 \
743 && TARGET_HARD_FLOAT \
744 && TARGET_SINGLE_FLOAT \
745 && TARGET_DOUBLE_FLOAT)
747 /* Macro to say whether we can do optimizations where we need to do parts of
748 the calculation in 64-bit GPRs and then is transfered to the vector
749 registers. Do not allow -maltivec=be for these optimizations, because it
750 adds to the complexity of the code. */
751 #define TARGET_DIRECT_MOVE_64BIT (TARGET_DIRECT_MOVE \
752 && TARGET_P8_VECTOR \
753 && TARGET_POWERPC64 \
754 && (rs6000_altivec_element_order != 2))
756 /* Whether the various reciprocal divide/square root estimate instructions
757 exist, and whether we should automatically generate code for the instruction
759 #define RS6000_RECIP_MASK_HAVE_RE 0x1 /* have RE instruction. */
760 #define RS6000_RECIP_MASK_AUTO_RE 0x2 /* generate RE by default. */
761 #define RS6000_RECIP_MASK_HAVE_RSQRTE 0x4 /* have RSQRTE instruction. */
762 #define RS6000_RECIP_MASK_AUTO_RSQRTE 0x8 /* gen. RSQRTE by default. */
764 extern unsigned char rs6000_recip_bits
[];
766 #define RS6000_RECIP_HAVE_RE_P(MODE) \
767 (rs6000_recip_bits[(int)(MODE)] & RS6000_RECIP_MASK_HAVE_RE)
769 #define RS6000_RECIP_AUTO_RE_P(MODE) \
770 (rs6000_recip_bits[(int)(MODE)] & RS6000_RECIP_MASK_AUTO_RE)
772 #define RS6000_RECIP_HAVE_RSQRTE_P(MODE) \
773 (rs6000_recip_bits[(int)(MODE)] & RS6000_RECIP_MASK_HAVE_RSQRTE)
775 #define RS6000_RECIP_AUTO_RSQRTE_P(MODE) \
776 (rs6000_recip_bits[(int)(MODE)] & RS6000_RECIP_MASK_AUTO_RSQRTE)
778 /* The default CPU for TARGET_OPTION_OVERRIDE. */
779 #define OPTION_TARGET_CPU_DEFAULT TARGET_CPU_DEFAULT
782 #define REGISTER_TARGET_PRAGMAS() do { \
783 c_register_pragma (0, "longcall", rs6000_pragma_longcall); \
784 targetm.target_option.pragma_parse = rs6000_pragma_target_parse; \
785 targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin; \
786 rs6000_target_modify_macros_ptr = rs6000_target_modify_macros; \
789 /* Target #defines. */
790 #define TARGET_CPU_CPP_BUILTINS() \
791 rs6000_cpu_cpp_builtins (pfile)
793 /* This is used by rs6000_cpu_cpp_builtins to indicate the byte order
794 we're compiling for. Some configurations may need to override it. */
795 #define RS6000_CPU_CPP_ENDIAN_BUILTINS() \
798 if (BYTES_BIG_ENDIAN) \
800 builtin_define ("__BIG_ENDIAN__"); \
801 builtin_define ("_BIG_ENDIAN"); \
802 builtin_assert ("machine=bigendian"); \
806 builtin_define ("__LITTLE_ENDIAN__"); \
807 builtin_define ("_LITTLE_ENDIAN"); \
808 builtin_assert ("machine=littleendian"); \
813 /* Target machine storage layout. */
815 /* Define this macro if it is advisable to hold scalars in registers
816 in a wider mode than that declared by the program. In such cases,
817 the value is constrained to be within the bounds of the declared
818 type, but kept valid in the wider mode. The signedness of the
819 extension may differ from that of the type. */
821 #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \
822 if (GET_MODE_CLASS (MODE) == MODE_INT \
823 && GET_MODE_SIZE (MODE) < (TARGET_32BIT ? 4 : 8)) \
824 (MODE) = TARGET_32BIT ? SImode : DImode;
826 /* Define this if most significant bit is lowest numbered
827 in instructions that operate on numbered bit-fields. */
828 /* That is true on RS/6000. */
829 #define BITS_BIG_ENDIAN 1
831 /* Define this if most significant byte of a word is the lowest numbered. */
832 /* That is true on RS/6000. */
833 #define BYTES_BIG_ENDIAN 1
835 /* Define this if most significant word of a multiword number is lowest
838 For RS/6000 we can decide arbitrarily since there are no machine
839 instructions for them. Might as well be consistent with bits and bytes. */
840 #define WORDS_BIG_ENDIAN 1
842 /* This says that for the IBM long double the larger magnitude double
843 comes first. It's really a two element double array, and arrays
844 don't index differently between little- and big-endian. */
845 #define LONG_DOUBLE_LARGE_FIRST 1
847 #define MAX_BITS_PER_WORD 64
849 /* Width of a word, in units (bytes). */
850 #define UNITS_PER_WORD (! TARGET_POWERPC64 ? 4 : 8)
852 #define MIN_UNITS_PER_WORD UNITS_PER_WORD
854 #define MIN_UNITS_PER_WORD 4
856 #define UNITS_PER_FP_WORD 8
857 #define UNITS_PER_ALTIVEC_WORD 16
858 #define UNITS_PER_VSX_WORD 16
859 #define UNITS_PER_PAIRED_WORD 8
861 /* Type used for ptrdiff_t, as a string used in a declaration. */
862 #define PTRDIFF_TYPE "int"
864 /* Type used for size_t, as a string used in a declaration. */
865 #define SIZE_TYPE "long unsigned int"
867 /* Type used for wchar_t, as a string used in a declaration. */
868 #define WCHAR_TYPE "short unsigned int"
870 /* Width of wchar_t in bits. */
871 #define WCHAR_TYPE_SIZE 16
873 /* A C expression for the size in bits of the type `short' on the
874 target machine. If you don't define this, the default is half a
875 word. (If this would be less than one storage unit, it is
876 rounded up to one unit.) */
877 #define SHORT_TYPE_SIZE 16
879 /* A C expression for the size in bits of the type `int' on the
880 target machine. If you don't define this, the default is one
882 #define INT_TYPE_SIZE 32
884 /* A C expression for the size in bits of the type `long' on the
885 target machine. If you don't define this, the default is one
887 #define LONG_TYPE_SIZE (TARGET_32BIT ? 32 : 64)
889 /* A C expression for the size in bits of the type `long long' on the
890 target machine. If you don't define this, the default is two
892 #define LONG_LONG_TYPE_SIZE 64
894 /* A C expression for the size in bits of the type `float' on the
895 target machine. If you don't define this, the default is one
897 #define FLOAT_TYPE_SIZE 32
899 /* A C expression for the size in bits of the type `double' on the
900 target machine. If you don't define this, the default is two
902 #define DOUBLE_TYPE_SIZE 64
904 /* A C expression for the size in bits of the type `long double' on
905 the target machine. If you don't define this, the default is two
907 #define LONG_DOUBLE_TYPE_SIZE rs6000_long_double_type_size
909 /* Work around rs6000_long_double_type_size dependency in ada/targtyps.c. */
910 #define WIDEST_HARDWARE_FP_SIZE 64
912 /* Width in bits of a pointer.
913 See also the macro `Pmode' defined below. */
914 extern unsigned rs6000_pointer_size
;
915 #define POINTER_SIZE rs6000_pointer_size
917 /* Allocation boundary (in *bits*) for storing arguments in argument list. */
918 #define PARM_BOUNDARY (TARGET_32BIT ? 32 : 64)
920 /* Boundary (in *bits*) on which stack pointer should be aligned. */
921 #define STACK_BOUNDARY \
922 ((TARGET_32BIT && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI && !TARGET_VSX) \
925 /* Allocation boundary (in *bits*) for the code of a function. */
926 #define FUNCTION_BOUNDARY 32
928 /* No data type wants to be aligned rounder than this. */
929 #define BIGGEST_ALIGNMENT 128
931 /* Alignment of field after `int : 0' in a structure. */
932 #define EMPTY_FIELD_BOUNDARY 32
934 /* Every structure's size must be a multiple of this. */
935 #define STRUCTURE_SIZE_BOUNDARY 8
937 /* A bit-field declared as `int' forces `int' alignment for the struct. */
938 #define PCC_BITFIELD_TYPE_MATTERS 1
940 enum data_align
{ align_abi
, align_opt
, align_both
};
942 /* A C expression to compute the alignment for a variables in the
943 local store. TYPE is the data type, and ALIGN is the alignment
944 that the object would ordinarily have. */
945 #define LOCAL_ALIGNMENT(TYPE, ALIGN) \
946 rs6000_data_alignment (TYPE, ALIGN, align_both)
948 /* Make arrays of chars word-aligned for the same reasons. */
949 #define DATA_ALIGNMENT(TYPE, ALIGN) \
950 rs6000_data_alignment (TYPE, ALIGN, align_opt)
952 /* Align vectors to 128 bits. */
953 #define DATA_ABI_ALIGNMENT(TYPE, ALIGN) \
954 rs6000_data_alignment (TYPE, ALIGN, align_abi)
956 /* Nonzero if move instructions will actually fail to work
957 when given unaligned data. */
958 #define STRICT_ALIGNMENT 0
960 /* Standard register usage. */
962 /* Number of actual hardware registers.
963 The hardware registers are assigned numbers for the compiler
964 from 0 to just below FIRST_PSEUDO_REGISTER.
965 All registers that the compiler knows about must be given numbers,
966 even those that are not normally considered general registers.
968 RS/6000 has 32 fixed-point registers, 32 floating-point registers,
969 a count register, a link register, and 8 condition register fields,
970 which we view here as separate registers. AltiVec adds 32 vector
971 registers and a VRsave register.
973 In addition, the difference between the frame and argument pointers is
974 a function of the number of registers saved, so we need to have a
975 register for AP that will later be eliminated in favor of SP or FP.
976 This is a normal register, but it is fixed.
978 We also create a pseudo register for float/int conversions, that will
979 really represent the memory location used. It is represented here as
980 a register, in order to work around problems in allocating stack storage
983 Another pseudo (not included in DWARF_FRAME_REGISTERS) is soft frame
984 pointer, which is eventually eliminated in favor of SP or FP.
986 The 3 HTM registers aren't also included in DWARF_FRAME_REGISTERS. */
988 #define FIRST_PSEUDO_REGISTER 115
990 /* This must be included for pre gcc 3.0 glibc compatibility. */
991 #define PRE_GCC3_DWARF_FRAME_REGISTERS 77
993 /* The sfp register and 3 HTM registers
994 aren't included in DWARF_FRAME_REGISTERS. */
995 #define DWARF_FRAME_REGISTERS (FIRST_PSEUDO_REGISTER - 4)
997 /* Use standard DWARF numbering for DWARF debugging information. */
998 #define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number ((REGNO), 0)
1000 /* Use gcc hard register numbering for eh_frame. */
1001 #define DWARF_FRAME_REGNUM(REGNO) (REGNO)
1003 /* Map register numbers held in the call frame info that gcc has
1004 collected using DWARF_FRAME_REGNUM to those that should be output in
1005 .debug_frame and .eh_frame. */
1006 #define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) \
1007 rs6000_dbx_register_number ((REGNO), (FOR_EH)? 2 : 1)
1009 /* 1 for registers that have pervasive standard uses
1010 and are not available for the register allocator.
1012 On RS/6000, r1 is used for the stack. On Darwin, r2 is available
1013 as a local register; for all other OS's r2 is the TOC pointer.
1015 On System V implementations, r13 is fixed and not available for use. */
1017 #define FIXED_REGISTERS \
1018 {0, 1, FIXED_R2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, FIXED_R13, 0, 0, \
1019 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1020 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1021 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1022 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, \
1023 /* AltiVec registers. */ \
1024 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1025 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1030 /* 1 for registers not available across function calls.
1031 These must include the FIXED_REGISTERS and also any
1032 registers that can be used without being saved.
1033 The latter must include the registers where values are returned
1034 and the register where structure-value addresses are passed.
1035 Aside from that, you can include as many other registers as you like. */
1037 #define CALL_USED_REGISTERS \
1038 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, FIXED_R13, 0, 0, \
1039 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1040 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \
1041 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1042 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, \
1043 /* AltiVec registers. */ \
1044 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1045 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1050 /* Like `CALL_USED_REGISTERS' except this macro doesn't require that
1051 the entire set of `FIXED_REGISTERS' be included.
1052 (`CALL_USED_REGISTERS' must be a superset of `FIXED_REGISTERS').
1053 This macro is optional. If not specified, it defaults to the value
1054 of `CALL_USED_REGISTERS'. */
1056 #define CALL_REALLY_USED_REGISTERS \
1057 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, FIXED_R13, 0, 0, \
1058 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1059 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \
1060 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1061 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, \
1062 /* AltiVec registers. */ \
1063 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1064 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1069 #define TOTAL_ALTIVEC_REGS (LAST_ALTIVEC_REGNO - FIRST_ALTIVEC_REGNO + 1)
1071 #define FIRST_SAVED_ALTIVEC_REGNO (FIRST_ALTIVEC_REGNO+20)
1072 #define FIRST_SAVED_FP_REGNO (14+32)
1073 #define FIRST_SAVED_GP_REGNO (FIXED_R13 ? 14 : 13)
1075 /* List the order in which to allocate registers. Each register must be
1076 listed once, even those in FIXED_REGISTERS.
1078 We allocate in the following order:
1079 fp0 (not saved or used for anything)
1080 fp13 - fp2 (not saved; incoming fp arg registers)
1081 fp1 (not saved; return value)
1082 fp31 - fp14 (saved; order given to save least number)
1083 cr7, cr5 (not saved or special)
1084 cr6 (not saved, but used for vector operations)
1085 cr1 (not saved, but used for FP operations)
1086 cr0 (not saved, but used for arithmetic operations)
1087 cr4, cr3, cr2 (saved)
1088 r9 (not saved; best for TImode)
1089 r10, r8-r4 (not saved; highest first for less conflict with params)
1090 r3 (not saved; return value register)
1091 r11 (not saved; later alloc to help shrink-wrap)
1092 r0 (not saved; cannot be base reg)
1093 r31 - r13 (saved; order given to save least number)
1094 r12 (not saved; if used for DImode or DFmode would use r13)
1095 ctr (not saved; when we have the choice ctr is better)
1097 r1, r2, ap, ca (fixed)
1098 v0 - v1 (not saved or used for anything)
1099 v13 - v3 (not saved; incoming vector arg registers)
1100 v2 (not saved; incoming vector arg reg; return value)
1101 v19 - v14 (not saved or used for anything)
1102 v31 - v20 (saved; order given to save least number)
1103 vrsave, vscr (fixed)
1111 #define MAYBE_R2_AVAILABLE
1112 #define MAYBE_R2_FIXED 2,
1114 #define MAYBE_R2_AVAILABLE 2,
1115 #define MAYBE_R2_FIXED
1119 #define EARLY_R12 12,
1123 #define LATE_R12 12,
1126 #define REG_ALLOC_ORDER \
1128 /* move fr13 (ie 45) later, so if we need TFmode, it does */ \
1129 /* not use fr14 which is a saved register. */ \
1130 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 45, \
1132 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, \
1133 50, 49, 48, 47, 46, \
1134 75, 73, 74, 69, 68, 72, 71, 70, \
1135 MAYBE_R2_AVAILABLE \
1136 9, 10, 8, 7, 6, 5, 4, \
1137 3, EARLY_R12 11, 0, \
1138 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, \
1139 18, 17, 16, 15, 14, 13, LATE_R12 \
1141 1, MAYBE_R2_FIXED 67, 76, \
1142 /* AltiVec registers. */ \
1144 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, \
1146 96, 95, 94, 93, 92, 91, \
1147 108, 107, 106, 105, 104, 103, 102, 101, 100, 99, 98, 97, \
1149 111, 112, 113, 114 \
1152 /* True if register is floating-point. */
1153 #define FP_REGNO_P(N) ((N) >= 32 && (N) <= 63)
1155 /* True if register is a condition register. */
1156 #define CR_REGNO_P(N) ((N) >= CR0_REGNO && (N) <= CR7_REGNO)
1158 /* True if register is a condition register, but not cr0. */
1159 #define CR_REGNO_NOT_CR0_P(N) ((N) >= CR1_REGNO && (N) <= CR7_REGNO)
1161 /* True if register is an integer register. */
1162 #define INT_REGNO_P(N) \
1163 ((N) <= 31 || (N) == ARG_POINTER_REGNUM || (N) == FRAME_POINTER_REGNUM)
1165 /* PAIRED SIMD registers are just the FPRs. */
1166 #define PAIRED_SIMD_REGNO_P(N) ((N) >= 32 && (N) <= 63)
1168 /* True if register is the CA register. */
1169 #define CA_REGNO_P(N) ((N) == CA_REGNO)
1171 /* True if register is an AltiVec register. */
1172 #define ALTIVEC_REGNO_P(N) ((N) >= FIRST_ALTIVEC_REGNO && (N) <= LAST_ALTIVEC_REGNO)
1174 /* True if register is a VSX register. */
1175 #define VSX_REGNO_P(N) (FP_REGNO_P (N) || ALTIVEC_REGNO_P (N))
1177 /* Alternate name for any vector register supporting floating point, no matter
1178 which instruction set(s) are available. */
1179 #define VFLOAT_REGNO_P(N) \
1180 (ALTIVEC_REGNO_P (N) || (TARGET_VSX && FP_REGNO_P (N)))
1182 /* Alternate name for any vector register supporting integer, no matter which
1183 instruction set(s) are available. */
1184 #define VINT_REGNO_P(N) ALTIVEC_REGNO_P (N)
1186 /* Alternate name for any vector register supporting logical operations, no
1187 matter which instruction set(s) are available. Allow GPRs as well as the
1188 vector registers. */
1189 #define VLOGICAL_REGNO_P(N) \
1190 (INT_REGNO_P (N) || ALTIVEC_REGNO_P (N) \
1191 || (TARGET_VSX && FP_REGNO_P (N))) \
1193 /* When setting up caller-save slots (MODE == VOIDmode) ensure we allocate
1194 enough space to account for vectors in FP regs. However, TFmode/TDmode
1195 should not use VSX instructions to do a caller save. */
1196 #define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
1197 ((NREGS) <= rs6000_hard_regno_nregs[MODE][REGNO] \
1200 && ((MODE) == VOIDmode || ALTIVEC_OR_VSX_VECTOR_MODE (MODE)) \
1201 && FP_REGNO_P (REGNO) \
1203 : FLOAT128_IBM_P (MODE) && FP_REGNO_P (REGNO) \
1205 : (MODE) == TDmode && FP_REGNO_P (REGNO) \
1207 : choose_hard_reg_mode ((REGNO), (NREGS), false))
1209 #define VSX_VECTOR_MODE(MODE) \
1210 ((MODE) == V4SFmode \
1211 || (MODE) == V2DFmode) \
1213 /* Note KFmode and possibly TFmode (i.e. IEEE 128-bit floating point) are not
1214 really a vector, but we want to treat it as a vector for moves, and
1217 #define ALTIVEC_VECTOR_MODE(MODE) \
1218 ((MODE) == V16QImode \
1219 || (MODE) == V8HImode \
1220 || (MODE) == V4SFmode \
1221 || (MODE) == V4SImode \
1222 || FLOAT128_VECTOR_P (MODE))
1224 #define ALTIVEC_OR_VSX_VECTOR_MODE(MODE) \
1225 (ALTIVEC_VECTOR_MODE (MODE) || VSX_VECTOR_MODE (MODE) \
1226 || (MODE) == V2DImode || (MODE) == V1TImode)
1228 #define PAIRED_VECTOR_MODE(MODE) \
1229 ((MODE) == V2SFmode)
1231 /* Post-reload, we can't use any new AltiVec registers, as we already
1232 emitted the vrsave mask. */
1234 #define HARD_REGNO_RENAME_OK(SRC, DST) \
1235 (! ALTIVEC_REGNO_P (DST) || df_regs_ever_live_p (DST))
1237 /* Specify the cost of a branch insn; roughly the number of extra insns that
1238 should be added to avoid a branch.
1240 Set this to 3 on the RS/6000 since that is roughly the average cost of an
1241 unscheduled conditional branch. */
1243 #define BRANCH_COST(speed_p, predictable_p) 3
1245 /* Override BRANCH_COST heuristic which empirically produces worse
1246 performance for removing short circuiting from the logical ops. */
1248 #define LOGICAL_OP_NON_SHORT_CIRCUIT 0
1250 /* Specify the registers used for certain standard purposes.
1251 The values of these macros are register numbers. */
1253 /* RS/6000 pc isn't overloaded on a register that the compiler knows about. */
1254 /* #define PC_REGNUM */
1256 /* Register to use for pushing function arguments. */
1257 #define STACK_POINTER_REGNUM 1
1259 /* Base register for access to local variables of the function. */
1260 #define HARD_FRAME_POINTER_REGNUM 31
1262 /* Base register for access to local variables of the function. */
1263 #define FRAME_POINTER_REGNUM 111
1265 /* Base register for access to arguments of the function. */
1266 #define ARG_POINTER_REGNUM 67
1268 /* Place to put static chain when calling a function that requires it. */
1269 #define STATIC_CHAIN_REGNUM 11
1271 /* Base register for access to thread local storage variables. */
1272 #define TLS_REGNUM ((TARGET_64BIT) ? 13 : 2)
1275 /* Define the classes of registers for register constraints in the
1276 machine description. Also define ranges of constants.
1278 One of the classes must always be named ALL_REGS and include all hard regs.
1279 If there is more than one class, another class must be named NO_REGS
1280 and contain no registers.
1282 The name GENERAL_REGS must be the name of a class (or an alias for
1283 another name such as ALL_REGS). This is the class of registers
1284 that is allowed by "g" or "r" in a register constraint.
1285 Also, registers outside this class are allocated only when
1286 instructions express preferences for them.
1288 The classes must be numbered in nondecreasing order; that is,
1289 a larger-numbered class must never be contained completely
1290 in a smaller-numbered class.
1292 For any two classes, it is very desirable that there be another
1293 class that represents their union. */
1295 /* The RS/6000 has three types of registers, fixed-point, floating-point, and
1296 condition registers, plus three special registers, CTR, and the link
1297 register. AltiVec adds a vector register class. VSX registers overlap the
1298 FPR registers and the Altivec registers.
1300 However, r0 is special in that it cannot be used as a base register.
1301 So make a class for registers valid as base registers.
1303 Also, cr0 is the only condition code register that can be used in
1304 arithmetic insns, so make a separate class for it. */
1331 #define N_REG_CLASSES (int) LIM_REG_CLASSES
1333 /* Give names of register classes as strings for dump file. */
1335 #define REG_CLASS_NAMES \
1346 "NON_SPECIAL_REGS", \
1349 "LINK_OR_CTR_REGS", \
1351 "SPEC_OR_GEN_REGS", \
1359 /* Define which registers fit in which classes.
1360 This is an initializer for a vector of HARD_REG_SET
1361 of length N_REG_CLASSES. */
1363 #define REG_CLASS_CONTENTS \
1366 { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, \
1368 { 0xfffffffe, 0x00000000, 0x00000008, 0x00008000 }, \
1369 /* GENERAL_REGS. */ \
1370 { 0xffffffff, 0x00000000, 0x00000008, 0x00008000 }, \
1372 { 0x00000000, 0xffffffff, 0x00000000, 0x00000000 }, \
1373 /* ALTIVEC_REGS. */ \
1374 { 0x00000000, 0x00000000, 0xffffe000, 0x00001fff }, \
1376 { 0x00000000, 0xffffffff, 0xffffe000, 0x00001fff }, \
1377 /* VRSAVE_REGS. */ \
1378 { 0x00000000, 0x00000000, 0x00000000, 0x00002000 }, \
1380 { 0x00000000, 0x00000000, 0x00000000, 0x00004000 }, \
1382 { 0x00000000, 0x00000000, 0x00000000, 0x00010000 }, \
1383 /* NON_SPECIAL_REGS. */ \
1384 { 0xffffffff, 0xffffffff, 0x00000008, 0x00008000 }, \
1386 { 0x00000000, 0x00000000, 0x00000002, 0x00000000 }, \
1388 { 0x00000000, 0x00000000, 0x00000004, 0x00000000 }, \
1389 /* LINK_OR_CTR_REGS. */ \
1390 { 0x00000000, 0x00000000, 0x00000006, 0x00000000 }, \
1391 /* SPECIAL_REGS. */ \
1392 { 0x00000000, 0x00000000, 0x00000006, 0x00002000 }, \
1393 /* SPEC_OR_GEN_REGS. */ \
1394 { 0xffffffff, 0x00000000, 0x0000000e, 0x0000a000 }, \
1396 { 0x00000000, 0x00000000, 0x00000010, 0x00000000 }, \
1398 { 0x00000000, 0x00000000, 0x00000ff0, 0x00000000 }, \
1399 /* NON_FLOAT_REGS. */ \
1400 { 0xffffffff, 0x00000000, 0x00000ffe, 0x00008000 }, \
1402 { 0x00000000, 0x00000000, 0x00001000, 0x00000000 }, \
1404 { 0xffffffff, 0xffffffff, 0xfffffffe, 0x0001ffff } \
1407 /* The same information, inverted:
1408 Return the class number of the smallest class containing
1409 reg number REGNO. This could be a conditional expression
1410 or could index an array. */
1412 extern enum reg_class rs6000_regno_regclass
[FIRST_PSEUDO_REGISTER
];
1414 #define REGNO_REG_CLASS(REGNO) \
1415 (gcc_checking_assert (IN_RANGE ((REGNO), 0, FIRST_PSEUDO_REGISTER-1)),\
1416 rs6000_regno_regclass[(REGNO)])
1418 /* Register classes for various constraints that are based on the target
1420 enum r6000_reg_class_enum
{
1421 RS6000_CONSTRAINT_d
, /* fpr registers for double values */
1422 RS6000_CONSTRAINT_f
, /* fpr registers for single values */
1423 RS6000_CONSTRAINT_v
, /* Altivec registers */
1424 RS6000_CONSTRAINT_wa
, /* Any VSX register */
1425 RS6000_CONSTRAINT_wb
, /* Altivec register if ISA 3.0 vector. */
1426 RS6000_CONSTRAINT_wd
, /* VSX register for V2DF */
1427 RS6000_CONSTRAINT_we
, /* VSX register if ISA 3.0 vector. */
1428 RS6000_CONSTRAINT_wf
, /* VSX register for V4SF */
1429 RS6000_CONSTRAINT_wg
, /* FPR register for -mmfpgpr */
1430 RS6000_CONSTRAINT_wh
, /* FPR register for direct moves. */
1431 RS6000_CONSTRAINT_wi
, /* FPR/VSX register to hold DImode */
1432 RS6000_CONSTRAINT_wj
, /* FPR/VSX register for DImode direct moves. */
1433 RS6000_CONSTRAINT_wk
, /* FPR/VSX register for DFmode direct moves. */
1434 RS6000_CONSTRAINT_wl
, /* FPR register for LFIWAX */
1435 RS6000_CONSTRAINT_wm
, /* VSX register for direct move */
1436 RS6000_CONSTRAINT_wo
, /* VSX register for power9 vector. */
1437 RS6000_CONSTRAINT_wp
, /* VSX reg for IEEE 128-bit fp TFmode. */
1438 RS6000_CONSTRAINT_wq
, /* VSX reg for IEEE 128-bit fp KFmode. */
1439 RS6000_CONSTRAINT_wr
, /* GPR register if 64-bit */
1440 RS6000_CONSTRAINT_ws
, /* VSX register for DF */
1441 RS6000_CONSTRAINT_wt
, /* VSX register for TImode */
1442 RS6000_CONSTRAINT_wu
, /* Altivec register for float load/stores. */
1443 RS6000_CONSTRAINT_wv
, /* Altivec register for double load/stores. */
1444 RS6000_CONSTRAINT_ww
, /* FP or VSX register for vsx float ops. */
1445 RS6000_CONSTRAINT_wx
, /* FPR register for STFIWX */
1446 RS6000_CONSTRAINT_wy
, /* VSX register for SF */
1447 RS6000_CONSTRAINT_wz
, /* FPR register for LFIWZX */
1448 RS6000_CONSTRAINT_wA
, /* BASE_REGS if 64-bit. */
1449 RS6000_CONSTRAINT_wH
, /* Altivec register for 32-bit integers. */
1450 RS6000_CONSTRAINT_wI
, /* VSX register for 32-bit integers. */
1451 RS6000_CONSTRAINT_wJ
, /* VSX register for 8/16-bit integers. */
1452 RS6000_CONSTRAINT_wK
, /* Altivec register for 16/32-bit integers. */
1453 RS6000_CONSTRAINT_MAX
1456 extern enum reg_class rs6000_constraints
[RS6000_CONSTRAINT_MAX
];
1458 /* The class value for index registers, and the one for base regs. */
1459 #define INDEX_REG_CLASS GENERAL_REGS
1460 #define BASE_REG_CLASS BASE_REGS
1462 /* Return whether a given register class can hold VSX objects. */
1463 #define VSX_REG_CLASS_P(CLASS) \
1464 ((CLASS) == VSX_REGS || (CLASS) == FLOAT_REGS || (CLASS) == ALTIVEC_REGS)
1466 /* Return whether a given register class targets general purpose registers. */
1467 #define GPR_REG_CLASS_P(CLASS) ((CLASS) == GENERAL_REGS || (CLASS) == BASE_REGS)
1469 /* Given an rtx X being reloaded into a reg required to be
1470 in class CLASS, return the class of reg to actually use.
1471 In general this is just CLASS; but on some machines
1472 in some cases it is preferable to use a more restrictive class.
1474 On the RS/6000, we have to return NO_REGS when we want to reload a
1475 floating-point CONST_DOUBLE to force it to be copied to memory.
1477 We also don't want to reload integer values into floating-point
1478 registers if we can at all help it. In fact, this can
1479 cause reload to die, if it tries to generate a reload of CTR
1480 into a FP register and discovers it doesn't have the memory location
1483 ??? Would it be a good idea to have reload do the converse, that is
1484 try to reload floating modes into FP registers if possible?
1487 #define PREFERRED_RELOAD_CLASS(X,CLASS) \
1488 rs6000_preferred_reload_class_ptr (X, CLASS)
1490 /* Return the register class of a scratch register needed to copy IN into
1491 or out of a register in CLASS in MODE. If it can be done directly,
1492 NO_REGS is returned. */
1494 #define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
1495 rs6000_secondary_reload_class_ptr (CLASS, MODE, IN)
1497 /* Return the maximum number of consecutive registers
1498 needed to represent mode MODE in a register of class CLASS.
1500 On RS/6000, this is the size of MODE in words, except in the FP regs, where
1501 a single reg is enough for two words, unless we have VSX, where the FP
1502 registers can hold 128 bits. */
1503 #define CLASS_MAX_NREGS(CLASS, MODE) rs6000_class_max_nregs[(MODE)][(CLASS)]
1505 /* Stack layout; function entry, exit and calling. */
1507 /* Define this if pushing a word on the stack
1508 makes the stack pointer a smaller address. */
1509 #define STACK_GROWS_DOWNWARD 1
1511 /* Offsets recorded in opcodes are a multiple of this alignment factor. */
1512 #define DWARF_CIE_DATA_ALIGNMENT (-((int) (TARGET_32BIT ? 4 : 8)))
1514 /* Define this to nonzero if the nominal address of the stack frame
1515 is at the high-address end of the local variables;
1516 that is, each additional local variable allocated
1517 goes at a more negative offset in the frame.
1519 On the RS/6000, we grow upwards, from the area after the outgoing
1521 #define FRAME_GROWS_DOWNWARD (flag_stack_protect != 0 \
1522 || (flag_sanitize & SANITIZE_ADDRESS) != 0)
1524 /* Size of the fixed area on the stack */
1525 #define RS6000_SAVE_AREA \
1526 ((DEFAULT_ABI == ABI_V4 ? 8 : DEFAULT_ABI == ABI_ELFv2 ? 16 : 24) \
1527 << (TARGET_64BIT ? 1 : 0))
1529 /* Stack offset for toc save slot. */
1530 #define RS6000_TOC_SAVE_SLOT \
1531 ((DEFAULT_ABI == ABI_ELFv2 ? 12 : 20) << (TARGET_64BIT ? 1 : 0))
1533 /* Align an address */
1534 #define RS6000_ALIGN(n,a) ROUND_UP ((n), (a))
1536 /* Offset within stack frame to start allocating local variables at.
1537 If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
1538 first local allocated. Otherwise, it is the offset to the BEGINNING
1539 of the first local allocated.
1541 On the RS/6000, the frame pointer is the same as the stack pointer,
1542 except for dynamic allocations. So we start after the fixed area and
1543 outgoing parameter area.
1545 If the function uses dynamic stack space (CALLS_ALLOCA is set), that
1546 space needs to be aligned to STACK_BOUNDARY, i.e. the sum of the
1547 sizes of the fixed area and the parameter area must be a multiple of
1550 #define RS6000_STARTING_FRAME_OFFSET \
1551 (cfun->calls_alloca \
1552 ? (RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, \
1553 (TARGET_ALTIVEC || TARGET_VSX) ? 16 : 8 )) \
1554 : (RS6000_ALIGN (crtl->outgoing_args_size, \
1555 (TARGET_ALTIVEC || TARGET_VSX) ? 16 : 8) \
1556 + RS6000_SAVE_AREA))
1558 /* Offset from the stack pointer register to an item dynamically
1559 allocated on the stack, e.g., by `alloca'.
1561 The default value for this macro is `STACK_POINTER_OFFSET' plus the
1562 length of the outgoing arguments. The default is correct for most
1563 machines. See `function.c' for details.
1565 This value must be a multiple of STACK_BOUNDARY (hard coded in
1567 #define STACK_DYNAMIC_OFFSET(FUNDECL) \
1568 RS6000_ALIGN (crtl->outgoing_args_size + STACK_POINTER_OFFSET, \
1569 (TARGET_ALTIVEC || TARGET_VSX) ? 16 : 8)
1571 /* If we generate an insn to push BYTES bytes,
1572 this says how many the stack pointer really advances by.
1573 On RS/6000, don't define this because there are no push insns. */
1574 /* #define PUSH_ROUNDING(BYTES) */
1576 /* Offset of first parameter from the argument pointer register value.
1577 On the RS/6000, we define the argument pointer to the start of the fixed
1579 #define FIRST_PARM_OFFSET(FNDECL) RS6000_SAVE_AREA
1581 /* Offset from the argument pointer register value to the top of
1582 stack. This is different from FIRST_PARM_OFFSET because of the
1583 register save area. */
1584 #define ARG_POINTER_CFA_OFFSET(FNDECL) 0
1586 /* Define this if stack space is still allocated for a parameter passed
1587 in a register. The value is the number of bytes allocated to this
1589 #define REG_PARM_STACK_SPACE(FNDECL) \
1590 rs6000_reg_parm_stack_space ((FNDECL), false)
1592 /* Define this macro if space guaranteed when compiling a function body
1593 is different to space required when making a call, a situation that
1594 can arise with K&R style function definitions. */
1595 #define INCOMING_REG_PARM_STACK_SPACE(FNDECL) \
1596 rs6000_reg_parm_stack_space ((FNDECL), true)
1598 /* Define this if the above stack space is to be considered part of the
1599 space allocated by the caller. */
1600 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
1602 /* This is the difference between the logical top of stack and the actual sp.
1604 For the RS/6000, sp points past the fixed area. */
1605 #define STACK_POINTER_OFFSET RS6000_SAVE_AREA
1607 /* Define this if the maximum size of all the outgoing args is to be
1608 accumulated and pushed during the prologue. The amount can be
1609 found in the variable crtl->outgoing_args_size. */
1610 #define ACCUMULATE_OUTGOING_ARGS 1
1612 /* Define how to find the value returned by a library function
1613 assuming the value has mode MODE. */
1615 #define LIBCALL_VALUE(MODE) rs6000_libcall_value ((MODE))
1617 /* DRAFT_V4_STRUCT_RET defaults off. */
1618 #define DRAFT_V4_STRUCT_RET 0
1620 /* Let TARGET_RETURN_IN_MEMORY control what happens. */
1621 #define DEFAULT_PCC_STRUCT_RETURN 0
1623 /* Mode of stack savearea.
1624 FUNCTION is VOIDmode because calling convention maintains SP.
1625 BLOCK needs Pmode for SP.
1626 NONLOCAL needs twice Pmode to maintain both backchain and SP. */
1627 #define STACK_SAVEAREA_MODE(LEVEL) \
1628 (LEVEL == SAVE_FUNCTION ? VOIDmode \
1629 : LEVEL == SAVE_NONLOCAL ? (TARGET_32BIT ? DImode : PTImode) : Pmode)
1631 /* Minimum and maximum general purpose registers used to hold arguments. */
1632 #define GP_ARG_MIN_REG 3
1633 #define GP_ARG_MAX_REG 10
1634 #define GP_ARG_NUM_REG (GP_ARG_MAX_REG - GP_ARG_MIN_REG + 1)
1636 /* Minimum and maximum floating point registers used to hold arguments. */
1637 #define FP_ARG_MIN_REG 33
1638 #define FP_ARG_AIX_MAX_REG 45
1639 #define FP_ARG_V4_MAX_REG 40
1640 #define FP_ARG_MAX_REG (DEFAULT_ABI == ABI_V4 \
1641 ? FP_ARG_V4_MAX_REG : FP_ARG_AIX_MAX_REG)
1642 #define FP_ARG_NUM_REG (FP_ARG_MAX_REG - FP_ARG_MIN_REG + 1)
1644 /* Minimum and maximum AltiVec registers used to hold arguments. */
1645 #define ALTIVEC_ARG_MIN_REG (FIRST_ALTIVEC_REGNO + 2)
1646 #define ALTIVEC_ARG_MAX_REG (ALTIVEC_ARG_MIN_REG + 11)
1647 #define ALTIVEC_ARG_NUM_REG (ALTIVEC_ARG_MAX_REG - ALTIVEC_ARG_MIN_REG + 1)
1649 /* Maximum number of registers per ELFv2 homogeneous aggregate argument. */
1650 #define AGGR_ARG_NUM_REG 8
1652 /* Return registers */
1653 #define GP_ARG_RETURN GP_ARG_MIN_REG
1654 #define FP_ARG_RETURN FP_ARG_MIN_REG
1655 #define ALTIVEC_ARG_RETURN (FIRST_ALTIVEC_REGNO + 2)
1656 #define FP_ARG_MAX_RETURN (DEFAULT_ABI != ABI_ELFv2 ? FP_ARG_RETURN \
1657 : (FP_ARG_RETURN + AGGR_ARG_NUM_REG - 1))
1658 #define ALTIVEC_ARG_MAX_RETURN (DEFAULT_ABI != ABI_ELFv2 \
1659 ? (ALTIVEC_ARG_RETURN \
1660 + (TARGET_FLOAT128_TYPE ? 1 : 0)) \
1661 : (ALTIVEC_ARG_RETURN + AGGR_ARG_NUM_REG - 1))
1663 /* Flags for the call/call_value rtl operations set up by function_arg */
1664 #define CALL_NORMAL 0x00000000 /* no special processing */
1665 /* Bits in 0x00000001 are unused. */
1666 #define CALL_V4_CLEAR_FP_ARGS 0x00000002 /* V.4, no FP args passed */
1667 #define CALL_V4_SET_FP_ARGS 0x00000004 /* V.4, FP args were passed */
1668 #define CALL_LONG 0x00000008 /* always call indirect */
1669 #define CALL_LIBCALL 0x00000010 /* libcall */
1671 /* We don't have prologue and epilogue functions to save/restore
1672 everything for most ABIs. */
1673 #define WORLD_SAVE_P(INFO) 0
1675 /* 1 if N is a possible register number for a function value
1676 as seen by the caller.
1678 On RS/6000, this is r3, fp1, and v2 (for AltiVec). */
1679 #define FUNCTION_VALUE_REGNO_P(N) \
1680 ((N) == GP_ARG_RETURN \
1681 || (IN_RANGE ((N), FP_ARG_RETURN, FP_ARG_MAX_RETURN) \
1682 && TARGET_HARD_FLOAT) \
1683 || (IN_RANGE ((N), ALTIVEC_ARG_RETURN, ALTIVEC_ARG_MAX_RETURN) \
1684 && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI))
1686 /* 1 if N is a possible register number for function argument passing.
1687 On RS/6000, these are r3-r10 and fp1-fp13.
1688 On AltiVec, v2 - v13 are used for passing vectors. */
1689 #define FUNCTION_ARG_REGNO_P(N) \
1690 (IN_RANGE ((N), GP_ARG_MIN_REG, GP_ARG_MAX_REG) \
1691 || (IN_RANGE ((N), ALTIVEC_ARG_MIN_REG, ALTIVEC_ARG_MAX_REG) \
1692 && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI) \
1693 || (IN_RANGE ((N), FP_ARG_MIN_REG, FP_ARG_MAX_REG) \
1694 && TARGET_HARD_FLOAT))
1696 /* Define a data type for recording info about an argument list
1697 during the scan of that argument list. This data type should
1698 hold all necessary information about the function itself
1699 and about the args processed so far, enough to enable macros
1700 such as FUNCTION_ARG to determine where the next arg should go.
1702 On the RS/6000, this is a structure. The first element is the number of
1703 total argument words, the second is used to store the next
1704 floating-point register number, and the third says how many more args we
1705 have prototype types for.
1707 For ABI_V4, we treat these slightly differently -- `sysv_gregno' is
1708 the next available GP register, `fregno' is the next available FP
1709 register, and `words' is the number of words used on the stack.
1711 The varargs/stdarg support requires that this structure's size
1712 be a multiple of sizeof(int). */
1714 typedef struct rs6000_args
1716 int words
; /* # words used for passing GP registers */
1717 int fregno
; /* next available FP register */
1718 int vregno
; /* next available AltiVec register */
1719 int nargs_prototype
; /* # args left in the current prototype */
1720 int prototype
; /* Whether a prototype was defined */
1721 int stdarg
; /* Whether function is a stdarg function. */
1722 int call_cookie
; /* Do special things for this call */
1723 int sysv_gregno
; /* next available GP register */
1724 int intoffset
; /* running offset in struct (darwin64) */
1725 int use_stack
; /* any part of struct on stack (darwin64) */
1726 int floats_in_gpr
; /* count of SFmode floats taking up
1727 GPR space (darwin64) */
1728 int named
; /* false for varargs params */
1729 int escapes
; /* if function visible outside tu */
1730 int libcall
; /* If this is a compiler generated call. */
1733 /* Initialize a variable CUM of type CUMULATIVE_ARGS
1734 for a call to a function whose data type is FNTYPE.
1735 For a library call, FNTYPE is 0. */
1737 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
1738 init_cumulative_args (&CUM, FNTYPE, LIBNAME, FALSE, FALSE, \
1739 N_NAMED_ARGS, FNDECL, VOIDmode)
1741 /* Similar, but when scanning the definition of a procedure. We always
1742 set NARGS_PROTOTYPE large so we never return an EXPR_LIST. */
1744 #define INIT_CUMULATIVE_INCOMING_ARGS(CUM, FNTYPE, LIBNAME) \
1745 init_cumulative_args (&CUM, FNTYPE, LIBNAME, TRUE, FALSE, \
1746 1000, current_function_decl, VOIDmode)
1748 /* Like INIT_CUMULATIVE_ARGS' but only used for outgoing libcalls. */
1750 #define INIT_CUMULATIVE_LIBCALL_ARGS(CUM, MODE, LIBNAME) \
1751 init_cumulative_args (&CUM, NULL_TREE, LIBNAME, FALSE, TRUE, \
1754 #define PAD_VARARGS_DOWN \
1755 (targetm.calls.function_arg_padding (TYPE_MODE (type), type) == PAD_DOWNWARD)
1757 /* Output assembler code to FILE to increment profiler label # LABELNO
1758 for profiling a function entry. */
1760 #define FUNCTION_PROFILER(FILE, LABELNO) \
1761 output_function_profiler ((FILE), (LABELNO));
1763 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
1764 the stack pointer does not matter. No definition is equivalent to
1767 On the RS/6000, this is nonzero because we can restore the stack from
1768 its backpointer, which we maintain. */
1769 #define EXIT_IGNORE_STACK 1
1771 /* Define this macro as a C expression that is nonzero for registers
1772 that are used by the epilogue or the return' pattern. The stack
1773 and frame pointer registers are already be assumed to be used as
1776 #define EPILOGUE_USES(REGNO) \
1777 ((reload_completed && (REGNO) == LR_REGNO) \
1778 || (TARGET_ALTIVEC && (REGNO) == VRSAVE_REGNO) \
1779 || (crtl->calls_eh_return \
1784 /* Length in units of the trampoline for entering a nested function. */
1786 #define TRAMPOLINE_SIZE rs6000_trampoline_size ()
1788 /* Definitions for __builtin_return_address and __builtin_frame_address.
1789 __builtin_return_address (0) should give link register (LR_REGNO), enable
1791 /* This should be uncommented, so that the link register is used, but
1792 currently this would result in unmatched insns and spilling fixed
1793 registers so we'll leave it for another day. When these problems are
1794 taken care of one additional fetch will be necessary in RETURN_ADDR_RTX.
1796 /* #define RETURN_ADDR_IN_PREVIOUS_FRAME */
1798 /* Number of bytes into the frame return addresses can be found. See
1799 rs6000_stack_info in rs6000.c for more information on how the different
1800 abi's store the return address. */
1801 #define RETURN_ADDRESS_OFFSET \
1802 ((DEFAULT_ABI == ABI_V4 ? 4 : 8) << (TARGET_64BIT ? 1 : 0))
1804 /* The current return address is in link register (65). The return address
1805 of anything farther back is accessed normally at an offset of 8 from the
1807 #define RETURN_ADDR_RTX(COUNT, FRAME) \
1808 (rs6000_return_addr (COUNT, FRAME))
1811 /* Definitions for register eliminations.
1813 We have two registers that can be eliminated on the RS/6000. First, the
1814 frame pointer register can often be eliminated in favor of the stack
1815 pointer register. Secondly, the argument pointer register can always be
1816 eliminated; it is replaced with either the stack or frame pointer.
1818 In addition, we use the elimination mechanism to see if r30 is needed
1819 Initially we assume that it isn't. If it is, we spill it. This is done
1820 by making it an eliminable register. We replace it with itself so that
1821 if it isn't needed, then existing uses won't be modified. */
1823 /* This is an array of structures. Each structure initializes one pair
1824 of eliminable registers. The "from" register number is given first,
1825 followed by "to". Eliminations of the same "from" register are listed
1826 in order of preference. */
1827 #define ELIMINABLE_REGS \
1828 {{ HARD_FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
1829 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
1830 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
1831 { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
1832 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
1833 { RS6000_PIC_OFFSET_TABLE_REGNUM, RS6000_PIC_OFFSET_TABLE_REGNUM } }
1835 /* Define the offset between two registers, one to be eliminated, and the other
1836 its replacement, at the start of a routine. */
1837 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
1838 ((OFFSET) = rs6000_initial_elimination_offset(FROM, TO))
1840 /* Addressing modes, and classification of registers for them. */
1842 #define HAVE_PRE_DECREMENT 1
1843 #define HAVE_PRE_INCREMENT 1
1844 #define HAVE_PRE_MODIFY_DISP 1
1845 #define HAVE_PRE_MODIFY_REG 1
1847 /* Macros to check register numbers against specific register classes. */
1849 /* These assume that REGNO is a hard or pseudo reg number.
1850 They give nonzero only if REGNO is a hard reg of the suitable class
1851 or a pseudo reg currently allocated to a suitable hard reg.
1852 Since they use reg_renumber, they are safe only once reg_renumber
1853 has been allocated, which happens in reginfo.c during register
1856 #define REGNO_OK_FOR_INDEX_P(REGNO) \
1857 ((REGNO) < FIRST_PSEUDO_REGISTER \
1858 ? (REGNO) <= 31 || (REGNO) == 67 \
1859 || (REGNO) == FRAME_POINTER_REGNUM \
1860 : (reg_renumber[REGNO] >= 0 \
1861 && (reg_renumber[REGNO] <= 31 || reg_renumber[REGNO] == 67 \
1862 || reg_renumber[REGNO] == FRAME_POINTER_REGNUM)))
1864 #define REGNO_OK_FOR_BASE_P(REGNO) \
1865 ((REGNO) < FIRST_PSEUDO_REGISTER \
1866 ? ((REGNO) > 0 && (REGNO) <= 31) || (REGNO) == 67 \
1867 || (REGNO) == FRAME_POINTER_REGNUM \
1868 : (reg_renumber[REGNO] > 0 \
1869 && (reg_renumber[REGNO] <= 31 || reg_renumber[REGNO] == 67 \
1870 || reg_renumber[REGNO] == FRAME_POINTER_REGNUM)))
1872 /* Nonzero if X is a hard reg that can be used as an index
1873 or if it is a pseudo reg in the non-strict case. */
1874 #define INT_REG_OK_FOR_INDEX_P(X, STRICT) \
1875 ((!(STRICT) && REGNO (X) >= FIRST_PSEUDO_REGISTER) \
1876 || REGNO_OK_FOR_INDEX_P (REGNO (X)))
1878 /* Nonzero if X is a hard reg that can be used as a base reg
1879 or if it is a pseudo reg in the non-strict case. */
1880 #define INT_REG_OK_FOR_BASE_P(X, STRICT) \
1881 ((!(STRICT) && REGNO (X) >= FIRST_PSEUDO_REGISTER) \
1882 || REGNO_OK_FOR_BASE_P (REGNO (X)))
1885 /* Maximum number of registers that can appear in a valid memory address. */
1887 #define MAX_REGS_PER_ADDRESS 2
1889 /* Recognize any constant value that is a valid address. */
1891 #define CONSTANT_ADDRESS_P(X) \
1892 (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
1893 || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST \
1894 || GET_CODE (X) == HIGH)
1896 #define EASY_VECTOR_15(n) ((n) >= -16 && (n) <= 15)
1897 #define EASY_VECTOR_15_ADD_SELF(n) (!EASY_VECTOR_15((n)) \
1898 && EASY_VECTOR_15((n) >> 1) \
1901 #define EASY_VECTOR_MSB(n,mode) \
1902 ((((unsigned HOST_WIDE_INT) (n)) & GET_MODE_MASK (mode)) == \
1903 ((((unsigned HOST_WIDE_INT)GET_MODE_MASK (mode)) + 1) >> 1))
1906 /* Try a machine-dependent way of reloading an illegitimate address
1907 operand. If we find one, push the reload and jump to WIN. This
1908 macro is used in only one place: `find_reloads_address' in reload.c.
1910 Implemented on rs6000 by rs6000_legitimize_reload_address.
1911 Note that (X) is evaluated twice; this is safe in current usage. */
1913 #define LEGITIMIZE_RELOAD_ADDRESS(X,MODE,OPNUM,TYPE,IND_LEVELS,WIN) \
1916 (X) = rs6000_legitimize_reload_address_ptr ((X), (MODE), (OPNUM), \
1917 (int)(TYPE), (IND_LEVELS), &win); \
1922 #define FIND_BASE_TERM rs6000_find_base_term
1924 /* The register number of the register used to address a table of
1925 static data addresses in memory. In some cases this register is
1926 defined by a processor's "application binary interface" (ABI).
1927 When this macro is defined, RTL is generated for this register
1928 once, as with the stack pointer and frame pointer registers. If
1929 this macro is not defined, it is up to the machine-dependent files
1930 to allocate such a register (if necessary). */
1932 #define RS6000_PIC_OFFSET_TABLE_REGNUM 30
1933 #define PIC_OFFSET_TABLE_REGNUM \
1934 (TARGET_TOC ? TOC_REGISTER \
1935 : flag_pic ? RS6000_PIC_OFFSET_TABLE_REGNUM \
1938 #define TOC_REGISTER (TARGET_MINIMAL_TOC ? RS6000_PIC_OFFSET_TABLE_REGNUM : 2)
1940 /* Define this macro if the register defined by
1941 `PIC_OFFSET_TABLE_REGNUM' is clobbered by calls. Do not define
1942 this macro if `PIC_OFFSET_TABLE_REGNUM' is not defined. */
1944 /* #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED */
1946 /* A C expression that is nonzero if X is a legitimate immediate
1947 operand on the target machine when generating position independent
1948 code. You can assume that X satisfies `CONSTANT_P', so you need
1949 not check this. You can also assume FLAG_PIC is true, so you need
1950 not check it either. You need not define this macro if all
1951 constants (including `SYMBOL_REF') can be immediate operands when
1952 generating position independent code. */
1954 /* #define LEGITIMATE_PIC_OPERAND_P (X) */
1956 /* Specify the machine mode that this machine uses
1957 for the index in the tablejump instruction. */
1958 #define CASE_VECTOR_MODE SImode
1960 /* Define as C expression which evaluates to nonzero if the tablejump
1961 instruction expects the table to contain offsets from the address of the
1963 Do not define this if the table should contain absolute addresses. */
1964 #define CASE_VECTOR_PC_RELATIVE 1
1966 /* Define this as 1 if `char' should by default be signed; else as 0. */
1967 #define DEFAULT_SIGNED_CHAR 0
1969 /* An integer expression for the size in bits of the largest integer machine
1970 mode that should actually be used. */
1972 /* Allow pairs of registers to be used, which is the intent of the default. */
1973 #define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (TARGET_POWERPC64 ? TImode : DImode)
1975 /* Max number of bytes we can move from memory to memory
1976 in one reasonably fast instruction. */
1977 #define MOVE_MAX (! TARGET_POWERPC64 ? 4 : 8)
1978 #define MAX_MOVE_MAX 8
1980 /* Nonzero if access to memory by bytes is no faster than for words.
1981 Also nonzero if doing byte operations (specifically shifts) in registers
1983 #define SLOW_BYTE_ACCESS 1
1985 /* Define if loading in MODE, an integral mode narrower than BITS_PER_WORD
1986 will either zero-extend or sign-extend. The value of this macro should
1987 be the code that says which one of the two operations is implicitly
1988 done, UNKNOWN if none. */
1989 #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND
1991 /* Define if loading short immediate values into registers sign extends. */
1992 #define SHORT_IMMEDIATES_SIGN_EXTEND 1
1994 /* The cntlzw and cntlzd instructions return 32 and 64 for input of zero. */
1995 #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \
1996 ((VALUE) = GET_MODE_BITSIZE (MODE), 2)
1998 /* The CTZ patterns that are implemented in terms of CLZ return -1 for input of
1999 zero. The hardware instructions added in Power9 and the sequences using
2000 popcount return 32 or 64. */
2001 #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \
2002 (TARGET_CTZ || TARGET_POPCNTD \
2003 ? ((VALUE) = GET_MODE_BITSIZE (MODE), 2) \
2004 : ((VALUE) = -1, 2))
2006 /* Specify the machine mode that pointers have.
2007 After generation of rtl, the compiler makes no further distinction
2008 between pointers and any other objects of this machine mode. */
2009 extern scalar_int_mode rs6000_pmode
;
2010 #define Pmode rs6000_pmode
2012 /* Supply definition of STACK_SIZE_MODE for allocate_dynamic_stack_space. */
2013 #define STACK_SIZE_MODE (TARGET_32BIT ? SImode : DImode)
2015 /* Mode of a function address in a call instruction (for indexing purposes).
2016 Doesn't matter on RS/6000. */
2017 #define FUNCTION_MODE SImode
2019 /* Define this if addresses of constant functions
2020 shouldn't be put through pseudo regs where they can be cse'd.
2021 Desirable on machines where ordinary constants are expensive
2022 but a CALL with constant address is cheap. */
2023 #define NO_FUNCTION_CSE 1
2025 /* Define this to be nonzero if shift instructions ignore all but the low-order
2028 The sle and sre instructions which allow SHIFT_COUNT_TRUNCATED
2029 have been dropped from the PowerPC architecture. */
2030 #define SHIFT_COUNT_TRUNCATED 0
2032 /* Adjust the length of an INSN. LENGTH is the currently-computed length and
2033 should be adjusted to reflect any required changes. This macro is used when
2034 there is some systematic length adjustment required that would be difficult
2035 to express in the length attribute. */
2037 /* #define ADJUST_INSN_LENGTH(X,LENGTH) */
2039 /* Given a comparison code (EQ, NE, etc.) and the first operand of a
2040 COMPARE, return the mode to be used for the comparison. For
2041 floating-point, CCFPmode should be used. CCUNSmode should be used
2042 for unsigned comparisons. CCEQmode should be used when we are
2043 doing an inequality comparison on the result of a
2044 comparison. CCmode should be used in all other cases. */
2046 #define SELECT_CC_MODE(OP,X,Y) \
2047 (SCALAR_FLOAT_MODE_P (GET_MODE (X)) ? CCFPmode \
2048 : (OP) == GTU || (OP) == LTU || (OP) == GEU || (OP) == LEU ? CCUNSmode \
2049 : (((OP) == EQ || (OP) == NE) && COMPARISON_P (X) \
2050 ? CCEQmode : CCmode))
2052 /* Can the condition code MODE be safely reversed? This is safe in
2053 all cases on this port, because at present it doesn't use the
2054 trapping FP comparisons (fcmpo). */
2055 #define REVERSIBLE_CC_MODE(MODE) 1
2057 /* Given a condition code and a mode, return the inverse condition. */
2058 #define REVERSE_CONDITION(CODE, MODE) rs6000_reverse_condition (MODE, CODE)
2061 /* Target cpu costs. */
2063 struct processor_costs
{
2064 const int mulsi
; /* cost of SImode multiplication. */
2065 const int mulsi_const
; /* cost of SImode multiplication by constant. */
2066 const int mulsi_const9
; /* cost of SImode mult by short constant. */
2067 const int muldi
; /* cost of DImode multiplication. */
2068 const int divsi
; /* cost of SImode division. */
2069 const int divdi
; /* cost of DImode division. */
2070 const int fp
; /* cost of simple SFmode and DFmode insns. */
2071 const int dmul
; /* cost of DFmode multiplication (and fmadd). */
2072 const int sdiv
; /* cost of SFmode division (fdivs). */
2073 const int ddiv
; /* cost of DFmode division (fdiv). */
2074 const int cache_line_size
; /* cache line size in bytes. */
2075 const int l1_cache_size
; /* size of l1 cache, in kilobytes. */
2076 const int l2_cache_size
; /* size of l2 cache, in kilobytes. */
2077 const int simultaneous_prefetches
; /* number of parallel prefetch
2079 const int sfdf_convert
; /* cost of SF->DF conversion. */
2082 extern const struct processor_costs
*rs6000_cost
;
2084 /* Control the assembler format that we output. */
2086 /* A C string constant describing how to begin a comment in the target
2087 assembler language. The compiler assumes that the comment will end at
2088 the end of the line. */
2089 #define ASM_COMMENT_START " #"
2091 /* Flag to say the TOC is initialized */
2092 extern int toc_initialized
;
2094 /* Macro to output a special constant pool entry. Go to WIN if we output
2095 it. Otherwise, it is written the usual way.
2097 On the RS/6000, toc entries are handled this way. */
2099 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY(FILE, X, MODE, ALIGN, LABELNO, WIN) \
2100 { if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (X, MODE)) \
2102 output_toc (FILE, X, LABELNO, MODE); \
2107 #ifdef HAVE_GAS_WEAK
2108 #define RS6000_WEAK 1
2110 #define RS6000_WEAK 0
2114 /* Used in lieu of ASM_WEAKEN_LABEL. */
2115 #define ASM_WEAKEN_DECL(FILE, DECL, NAME, VAL) \
2116 rs6000_asm_weaken_decl ((FILE), (DECL), (NAME), (VAL))
2119 #if HAVE_GAS_WEAKREF
2120 #define ASM_OUTPUT_WEAKREF(FILE, DECL, NAME, VALUE) \
2123 fputs ("\t.weakref\t", (FILE)); \
2124 RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \
2125 fputs (", ", (FILE)); \
2126 RS6000_OUTPUT_BASENAME ((FILE), (VALUE)); \
2127 if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL \
2128 && DEFAULT_ABI == ABI_AIX && DOT_SYMBOLS) \
2130 fputs ("\n\t.weakref\t.", (FILE)); \
2131 RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \
2132 fputs (", .", (FILE)); \
2133 RS6000_OUTPUT_BASENAME ((FILE), (VALUE)); \
2135 fputc ('\n', (FILE)); \
2139 /* This implements the `alias' attribute. */
2140 #undef ASM_OUTPUT_DEF_FROM_DECLS
2141 #define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
2144 const char *alias = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
2145 const char *name = IDENTIFIER_POINTER (TARGET); \
2146 if (TREE_CODE (DECL) == FUNCTION_DECL \
2147 && DEFAULT_ABI == ABI_AIX && DOT_SYMBOLS) \
2149 if (TREE_PUBLIC (DECL)) \
2151 if (!RS6000_WEAK || !DECL_WEAK (DECL)) \
2153 fputs ("\t.globl\t.", FILE); \
2154 RS6000_OUTPUT_BASENAME (FILE, alias); \
2155 putc ('\n', FILE); \
2158 else if (TARGET_XCOFF) \
2160 if (!RS6000_WEAK || !DECL_WEAK (DECL)) \
2162 fputs ("\t.lglobl\t.", FILE); \
2163 RS6000_OUTPUT_BASENAME (FILE, alias); \
2164 putc ('\n', FILE); \
2165 fputs ("\t.lglobl\t", FILE); \
2166 RS6000_OUTPUT_BASENAME (FILE, alias); \
2167 putc ('\n', FILE); \
2170 fputs ("\t.set\t.", FILE); \
2171 RS6000_OUTPUT_BASENAME (FILE, alias); \
2172 fputs (",.", FILE); \
2173 RS6000_OUTPUT_BASENAME (FILE, name); \
2174 fputc ('\n', FILE); \
2176 ASM_OUTPUT_DEF (FILE, alias, name); \
2180 #define TARGET_ASM_FILE_START rs6000_file_start
2182 /* Output to assembler file text saying following lines
2183 may contain character constants, extra white space, comments, etc. */
2185 #define ASM_APP_ON ""
2187 /* Output to assembler file text saying following lines
2188 no longer contain unusual constructs. */
2190 #define ASM_APP_OFF ""
2192 /* How to refer to registers in assembler output.
2193 This sequence is indexed by compiler's hard-register-number (see above). */
2195 extern char rs6000_reg_names
[][8]; /* register names (0 vs. %r0). */
2197 #define REGISTER_NAMES \
2199 &rs6000_reg_names[ 0][0], /* r0 */ \
2200 &rs6000_reg_names[ 1][0], /* r1 */ \
2201 &rs6000_reg_names[ 2][0], /* r2 */ \
2202 &rs6000_reg_names[ 3][0], /* r3 */ \
2203 &rs6000_reg_names[ 4][0], /* r4 */ \
2204 &rs6000_reg_names[ 5][0], /* r5 */ \
2205 &rs6000_reg_names[ 6][0], /* r6 */ \
2206 &rs6000_reg_names[ 7][0], /* r7 */ \
2207 &rs6000_reg_names[ 8][0], /* r8 */ \
2208 &rs6000_reg_names[ 9][0], /* r9 */ \
2209 &rs6000_reg_names[10][0], /* r10 */ \
2210 &rs6000_reg_names[11][0], /* r11 */ \
2211 &rs6000_reg_names[12][0], /* r12 */ \
2212 &rs6000_reg_names[13][0], /* r13 */ \
2213 &rs6000_reg_names[14][0], /* r14 */ \
2214 &rs6000_reg_names[15][0], /* r15 */ \
2215 &rs6000_reg_names[16][0], /* r16 */ \
2216 &rs6000_reg_names[17][0], /* r17 */ \
2217 &rs6000_reg_names[18][0], /* r18 */ \
2218 &rs6000_reg_names[19][0], /* r19 */ \
2219 &rs6000_reg_names[20][0], /* r20 */ \
2220 &rs6000_reg_names[21][0], /* r21 */ \
2221 &rs6000_reg_names[22][0], /* r22 */ \
2222 &rs6000_reg_names[23][0], /* r23 */ \
2223 &rs6000_reg_names[24][0], /* r24 */ \
2224 &rs6000_reg_names[25][0], /* r25 */ \
2225 &rs6000_reg_names[26][0], /* r26 */ \
2226 &rs6000_reg_names[27][0], /* r27 */ \
2227 &rs6000_reg_names[28][0], /* r28 */ \
2228 &rs6000_reg_names[29][0], /* r29 */ \
2229 &rs6000_reg_names[30][0], /* r30 */ \
2230 &rs6000_reg_names[31][0], /* r31 */ \
2232 &rs6000_reg_names[32][0], /* fr0 */ \
2233 &rs6000_reg_names[33][0], /* fr1 */ \
2234 &rs6000_reg_names[34][0], /* fr2 */ \
2235 &rs6000_reg_names[35][0], /* fr3 */ \
2236 &rs6000_reg_names[36][0], /* fr4 */ \
2237 &rs6000_reg_names[37][0], /* fr5 */ \
2238 &rs6000_reg_names[38][0], /* fr6 */ \
2239 &rs6000_reg_names[39][0], /* fr7 */ \
2240 &rs6000_reg_names[40][0], /* fr8 */ \
2241 &rs6000_reg_names[41][0], /* fr9 */ \
2242 &rs6000_reg_names[42][0], /* fr10 */ \
2243 &rs6000_reg_names[43][0], /* fr11 */ \
2244 &rs6000_reg_names[44][0], /* fr12 */ \
2245 &rs6000_reg_names[45][0], /* fr13 */ \
2246 &rs6000_reg_names[46][0], /* fr14 */ \
2247 &rs6000_reg_names[47][0], /* fr15 */ \
2248 &rs6000_reg_names[48][0], /* fr16 */ \
2249 &rs6000_reg_names[49][0], /* fr17 */ \
2250 &rs6000_reg_names[50][0], /* fr18 */ \
2251 &rs6000_reg_names[51][0], /* fr19 */ \
2252 &rs6000_reg_names[52][0], /* fr20 */ \
2253 &rs6000_reg_names[53][0], /* fr21 */ \
2254 &rs6000_reg_names[54][0], /* fr22 */ \
2255 &rs6000_reg_names[55][0], /* fr23 */ \
2256 &rs6000_reg_names[56][0], /* fr24 */ \
2257 &rs6000_reg_names[57][0], /* fr25 */ \
2258 &rs6000_reg_names[58][0], /* fr26 */ \
2259 &rs6000_reg_names[59][0], /* fr27 */ \
2260 &rs6000_reg_names[60][0], /* fr28 */ \
2261 &rs6000_reg_names[61][0], /* fr29 */ \
2262 &rs6000_reg_names[62][0], /* fr30 */ \
2263 &rs6000_reg_names[63][0], /* fr31 */ \
2265 &rs6000_reg_names[64][0], /* was mq */ \
2266 &rs6000_reg_names[65][0], /* lr */ \
2267 &rs6000_reg_names[66][0], /* ctr */ \
2268 &rs6000_reg_names[67][0], /* ap */ \
2270 &rs6000_reg_names[68][0], /* cr0 */ \
2271 &rs6000_reg_names[69][0], /* cr1 */ \
2272 &rs6000_reg_names[70][0], /* cr2 */ \
2273 &rs6000_reg_names[71][0], /* cr3 */ \
2274 &rs6000_reg_names[72][0], /* cr4 */ \
2275 &rs6000_reg_names[73][0], /* cr5 */ \
2276 &rs6000_reg_names[74][0], /* cr6 */ \
2277 &rs6000_reg_names[75][0], /* cr7 */ \
2279 &rs6000_reg_names[76][0], /* ca */ \
2281 &rs6000_reg_names[77][0], /* v0 */ \
2282 &rs6000_reg_names[78][0], /* v1 */ \
2283 &rs6000_reg_names[79][0], /* v2 */ \
2284 &rs6000_reg_names[80][0], /* v3 */ \
2285 &rs6000_reg_names[81][0], /* v4 */ \
2286 &rs6000_reg_names[82][0], /* v5 */ \
2287 &rs6000_reg_names[83][0], /* v6 */ \
2288 &rs6000_reg_names[84][0], /* v7 */ \
2289 &rs6000_reg_names[85][0], /* v8 */ \
2290 &rs6000_reg_names[86][0], /* v9 */ \
2291 &rs6000_reg_names[87][0], /* v10 */ \
2292 &rs6000_reg_names[88][0], /* v11 */ \
2293 &rs6000_reg_names[89][0], /* v12 */ \
2294 &rs6000_reg_names[90][0], /* v13 */ \
2295 &rs6000_reg_names[91][0], /* v14 */ \
2296 &rs6000_reg_names[92][0], /* v15 */ \
2297 &rs6000_reg_names[93][0], /* v16 */ \
2298 &rs6000_reg_names[94][0], /* v17 */ \
2299 &rs6000_reg_names[95][0], /* v18 */ \
2300 &rs6000_reg_names[96][0], /* v19 */ \
2301 &rs6000_reg_names[97][0], /* v20 */ \
2302 &rs6000_reg_names[98][0], /* v21 */ \
2303 &rs6000_reg_names[99][0], /* v22 */ \
2304 &rs6000_reg_names[100][0], /* v23 */ \
2305 &rs6000_reg_names[101][0], /* v24 */ \
2306 &rs6000_reg_names[102][0], /* v25 */ \
2307 &rs6000_reg_names[103][0], /* v26 */ \
2308 &rs6000_reg_names[104][0], /* v27 */ \
2309 &rs6000_reg_names[105][0], /* v28 */ \
2310 &rs6000_reg_names[106][0], /* v29 */ \
2311 &rs6000_reg_names[107][0], /* v30 */ \
2312 &rs6000_reg_names[108][0], /* v31 */ \
2313 &rs6000_reg_names[109][0], /* vrsave */ \
2314 &rs6000_reg_names[110][0], /* vscr */ \
2315 &rs6000_reg_names[111][0], /* sfp */ \
2316 &rs6000_reg_names[112][0], /* tfhar */ \
2317 &rs6000_reg_names[113][0], /* tfiar */ \
2318 &rs6000_reg_names[114][0], /* texasr */ \
2321 /* Table of additional register names to use in user input. */
2323 #define ADDITIONAL_REGISTER_NAMES \
2324 {{"r0", 0}, {"r1", 1}, {"r2", 2}, {"r3", 3}, \
2325 {"r4", 4}, {"r5", 5}, {"r6", 6}, {"r7", 7}, \
2326 {"r8", 8}, {"r9", 9}, {"r10", 10}, {"r11", 11}, \
2327 {"r12", 12}, {"r13", 13}, {"r14", 14}, {"r15", 15}, \
2328 {"r16", 16}, {"r17", 17}, {"r18", 18}, {"r19", 19}, \
2329 {"r20", 20}, {"r21", 21}, {"r22", 22}, {"r23", 23}, \
2330 {"r24", 24}, {"r25", 25}, {"r26", 26}, {"r27", 27}, \
2331 {"r28", 28}, {"r29", 29}, {"r30", 30}, {"r31", 31}, \
2332 {"fr0", 32}, {"fr1", 33}, {"fr2", 34}, {"fr3", 35}, \
2333 {"fr4", 36}, {"fr5", 37}, {"fr6", 38}, {"fr7", 39}, \
2334 {"fr8", 40}, {"fr9", 41}, {"fr10", 42}, {"fr11", 43}, \
2335 {"fr12", 44}, {"fr13", 45}, {"fr14", 46}, {"fr15", 47}, \
2336 {"fr16", 48}, {"fr17", 49}, {"fr18", 50}, {"fr19", 51}, \
2337 {"fr20", 52}, {"fr21", 53}, {"fr22", 54}, {"fr23", 55}, \
2338 {"fr24", 56}, {"fr25", 57}, {"fr26", 58}, {"fr27", 59}, \
2339 {"fr28", 60}, {"fr29", 61}, {"fr30", 62}, {"fr31", 63}, \
2340 {"v0", 77}, {"v1", 78}, {"v2", 79}, {"v3", 80}, \
2341 {"v4", 81}, {"v5", 82}, {"v6", 83}, {"v7", 84}, \
2342 {"v8", 85}, {"v9", 86}, {"v10", 87}, {"v11", 88}, \
2343 {"v12", 89}, {"v13", 90}, {"v14", 91}, {"v15", 92}, \
2344 {"v16", 93}, {"v17", 94}, {"v18", 95}, {"v19", 96}, \
2345 {"v20", 97}, {"v21", 98}, {"v22", 99}, {"v23", 100}, \
2346 {"v24", 101},{"v25", 102},{"v26", 103},{"v27", 104}, \
2347 {"v28", 105},{"v29", 106},{"v30", 107},{"v31", 108}, \
2348 {"vrsave", 109}, {"vscr", 110}, \
2349 /* no additional names for: lr, ctr, ap */ \
2350 {"cr0", 68}, {"cr1", 69}, {"cr2", 70}, {"cr3", 71}, \
2351 {"cr4", 72}, {"cr5", 73}, {"cr6", 74}, {"cr7", 75}, \
2352 {"cc", 68}, {"sp", 1}, {"toc", 2}, \
2353 /* CA is only part of XER, but we do not model the other parts (yet). */ \
2355 /* VSX registers overlaid on top of FR, Altivec registers */ \
2356 {"vs0", 32}, {"vs1", 33}, {"vs2", 34}, {"vs3", 35}, \
2357 {"vs4", 36}, {"vs5", 37}, {"vs6", 38}, {"vs7", 39}, \
2358 {"vs8", 40}, {"vs9", 41}, {"vs10", 42}, {"vs11", 43}, \
2359 {"vs12", 44}, {"vs13", 45}, {"vs14", 46}, {"vs15", 47}, \
2360 {"vs16", 48}, {"vs17", 49}, {"vs18", 50}, {"vs19", 51}, \
2361 {"vs20", 52}, {"vs21", 53}, {"vs22", 54}, {"vs23", 55}, \
2362 {"vs24", 56}, {"vs25", 57}, {"vs26", 58}, {"vs27", 59}, \
2363 {"vs28", 60}, {"vs29", 61}, {"vs30", 62}, {"vs31", 63}, \
2364 {"vs32", 77}, {"vs33", 78}, {"vs34", 79}, {"vs35", 80}, \
2365 {"vs36", 81}, {"vs37", 82}, {"vs38", 83}, {"vs39", 84}, \
2366 {"vs40", 85}, {"vs41", 86}, {"vs42", 87}, {"vs43", 88}, \
2367 {"vs44", 89}, {"vs45", 90}, {"vs46", 91}, {"vs47", 92}, \
2368 {"vs48", 93}, {"vs49", 94}, {"vs50", 95}, {"vs51", 96}, \
2369 {"vs52", 97}, {"vs53", 98}, {"vs54", 99}, {"vs55", 100}, \
2370 {"vs56", 101},{"vs57", 102},{"vs58", 103},{"vs59", 104}, \
2371 {"vs60", 105},{"vs61", 106},{"vs62", 107},{"vs63", 108}, \
2372 /* Transactional Memory Facility (HTM) Registers. */ \
2373 {"tfhar", 112}, {"tfiar", 113}, {"texasr", 114}, \
2376 /* This is how to output an element of a case-vector that is relative. */
2378 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
2379 do { char buf[100]; \
2380 fputs ("\t.long ", FILE); \
2381 ASM_GENERATE_INTERNAL_LABEL (buf, "L", VALUE); \
2382 assemble_name (FILE, buf); \
2384 ASM_GENERATE_INTERNAL_LABEL (buf, "L", REL); \
2385 assemble_name (FILE, buf); \
2386 putc ('\n', FILE); \
2389 /* This is how to output an assembler line
2390 that says to advance the location counter
2391 to a multiple of 2**LOG bytes. */
2393 #define ASM_OUTPUT_ALIGN(FILE,LOG) \
2395 fprintf (FILE, "\t.align %d\n", (LOG))
2397 /* How to align the given loop. */
2398 #define LOOP_ALIGN(LABEL) rs6000_loop_align(LABEL)
2400 /* Alignment guaranteed by __builtin_malloc. */
2401 /* FIXME: 128-bit alignment is guaranteed by glibc for TARGET_64BIT.
2402 However, specifying the stronger guarantee currently leads to
2403 a regression in SPEC CPU2006 437.leslie3d. The stronger
2404 guarantee should be implemented here once that's fixed. */
2405 #define MALLOC_ABI_ALIGNMENT (64)
2407 /* Pick up the return address upon entry to a procedure. Used for
2408 dwarf2 unwind information. This also enables the table driven
2411 #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, LR_REGNO)
2412 #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (LR_REGNO)
2414 /* Describe how we implement __builtin_eh_return. */
2415 #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 3 : INVALID_REGNUM)
2416 #define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 10)
2418 /* Print operand X (an rtx) in assembler syntax to file FILE.
2419 CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
2420 For `%' followed by punctuation, CODE is the punctuation and X is null. */
2422 #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
2424 /* Define which CODE values are valid. */
2426 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '&')
2428 /* Print a memory address as an operand to reference that memory location. */
2430 #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
2432 /* For switching between functions with different target attributes. */
2433 #define SWITCHABLE_TARGET 1
2435 /* uncomment for disabling the corresponding default options */
2436 /* #define MACHINE_no_sched_interblock */
2437 /* #define MACHINE_no_sched_speculative */
2438 /* #define MACHINE_no_sched_speculative_load */
2440 /* General flags. */
2441 extern int frame_pointer_needed
;
2443 /* Classification of the builtin functions as to which switches enable the
2444 builtin, and what attributes it should have. We used to use the target
2445 flags macros, but we've run out of bits, so we now map the options into new
2446 settings used here. */
2448 /* Builtin attributes. */
2449 #define RS6000_BTC_SPECIAL 0x00000000 /* Special function. */
2450 #define RS6000_BTC_UNARY 0x00000001 /* normal unary function. */
2451 #define RS6000_BTC_BINARY 0x00000002 /* normal binary function. */
2452 #define RS6000_BTC_TERNARY 0x00000003 /* normal ternary function. */
2453 #define RS6000_BTC_PREDICATE 0x00000004 /* predicate function. */
2454 #define RS6000_BTC_ABS 0x00000005 /* Altivec/VSX ABS function. */
2455 #define RS6000_BTC_DST 0x00000007 /* Altivec DST function. */
2456 #define RS6000_BTC_TYPE_MASK 0x0000000f /* Mask to isolate types */
2458 #define RS6000_BTC_MISC 0x00000000 /* No special attributes. */
2459 #define RS6000_BTC_CONST 0x00000100 /* Neither uses, nor
2460 modifies global state. */
2461 #define RS6000_BTC_PURE 0x00000200 /* reads global
2463 not modify global state. */
2464 #define RS6000_BTC_FP 0x00000400 /* depends on rounding mode. */
2465 #define RS6000_BTC_ATTR_MASK 0x00000700 /* Mask of the attributes. */
2467 /* Miscellaneous information. */
2468 #define RS6000_BTC_SPR 0x01000000 /* function references SPRs. */
2469 #define RS6000_BTC_VOID 0x02000000 /* function has no return value. */
2470 #define RS6000_BTC_CR 0x04000000 /* function references a CR. */
2471 #define RS6000_BTC_OVERLOADED 0x08000000 /* function is overloaded. */
2472 #define RS6000_BTC_MISC_MASK 0x1f000000 /* Mask of the misc info. */
2474 /* Convenience macros to document the instruction type. */
2475 #define RS6000_BTC_MEM RS6000_BTC_MISC /* load/store touches mem. */
2476 #define RS6000_BTC_SAT RS6000_BTC_MISC /* saturate sets VSCR. */
2478 /* Builtin targets. For now, we reuse the masks for those options that are in
2479 target flags, and pick two random bits for paired and ldbl128, which
2480 aren't in target_flags. */
2481 #define RS6000_BTM_ALWAYS 0 /* Always enabled. */
2482 #define RS6000_BTM_ALTIVEC MASK_ALTIVEC /* VMX/altivec vectors. */
2483 #define RS6000_BTM_CMPB MASK_CMPB /* ISA 2.05: compare bytes. */
2484 #define RS6000_BTM_VSX MASK_VSX /* VSX (vector/scalar). */
2485 #define RS6000_BTM_P8_VECTOR MASK_P8_VECTOR /* ISA 2.07 vector. */
2486 #define RS6000_BTM_P9_VECTOR MASK_P9_VECTOR /* ISA 3.0 vector. */
2487 #define RS6000_BTM_P9_MISC MASK_P9_MISC /* ISA 3.0 misc. non-vector */
2488 #define RS6000_BTM_CRYPTO MASK_CRYPTO /* crypto funcs. */
2489 #define RS6000_BTM_HTM MASK_HTM /* hardware TM funcs. */
2490 #define RS6000_BTM_PAIRED MASK_MULHW /* 750CL paired insns. */
2491 #define RS6000_BTM_FRE MASK_POPCNTB /* FRE instruction. */
2492 #define RS6000_BTM_FRES MASK_PPC_GFXOPT /* FRES instruction. */
2493 #define RS6000_BTM_FRSQRTE MASK_PPC_GFXOPT /* FRSQRTE instruction. */
2494 #define RS6000_BTM_FRSQRTES MASK_POPCNTB /* FRSQRTES instruction. */
2495 #define RS6000_BTM_POPCNTD MASK_POPCNTD /* Target supports ISA 2.06. */
2496 #define RS6000_BTM_CELL MASK_FPRND /* Target is cell powerpc. */
2497 #define RS6000_BTM_DFP MASK_DFP /* Decimal floating point. */
2498 #define RS6000_BTM_HARD_FLOAT MASK_SOFT_FLOAT /* Hardware floating point. */
2499 #define RS6000_BTM_LDBL128 MASK_MULTIPLE /* 128-bit long double. */
2500 #define RS6000_BTM_64BIT MASK_64BIT /* 64-bit addressing. */
2501 #define RS6000_BTM_FLOAT128 MASK_FLOAT128_KEYWORD /* IEEE 128-bit float. */
2502 #define RS6000_BTM_FLOAT128_HW MASK_FLOAT128_HW /* IEEE 128-bit float h/w. */
2504 #define RS6000_BTM_COMMON (RS6000_BTM_ALTIVEC \
2506 | RS6000_BTM_P8_VECTOR \
2507 | RS6000_BTM_P9_VECTOR \
2508 | RS6000_BTM_P9_MISC \
2509 | RS6000_BTM_MODULO \
2510 | RS6000_BTM_CRYPTO \
2513 | RS6000_BTM_FRSQRTE \
2514 | RS6000_BTM_FRSQRTES \
2516 | RS6000_BTM_POPCNTD \
2519 | RS6000_BTM_HARD_FLOAT \
2520 | RS6000_BTM_LDBL128 \
2521 | RS6000_BTM_FLOAT128 \
2522 | RS6000_BTM_FLOAT128_HW)
2524 /* Define builtin enum index. */
2526 #undef RS6000_BUILTIN_0
2527 #undef RS6000_BUILTIN_1
2528 #undef RS6000_BUILTIN_2
2529 #undef RS6000_BUILTIN_3
2530 #undef RS6000_BUILTIN_A
2531 #undef RS6000_BUILTIN_D
2532 #undef RS6000_BUILTIN_H
2533 #undef RS6000_BUILTIN_P
2534 #undef RS6000_BUILTIN_Q
2535 #undef RS6000_BUILTIN_X
2537 #define RS6000_BUILTIN_0(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2538 #define RS6000_BUILTIN_1(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2539 #define RS6000_BUILTIN_2(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2540 #define RS6000_BUILTIN_3(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2541 #define RS6000_BUILTIN_A(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2542 #define RS6000_BUILTIN_D(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2543 #define RS6000_BUILTIN_H(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2544 #define RS6000_BUILTIN_P(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2545 #define RS6000_BUILTIN_Q(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2546 #define RS6000_BUILTIN_X(ENUM, NAME, MASK, ATTR, ICODE) ENUM,
2548 enum rs6000_builtins
2550 #include "rs6000-builtin.def"
2552 RS6000_BUILTIN_COUNT
2555 #undef RS6000_BUILTIN_0
2556 #undef RS6000_BUILTIN_1
2557 #undef RS6000_BUILTIN_2
2558 #undef RS6000_BUILTIN_3
2559 #undef RS6000_BUILTIN_A
2560 #undef RS6000_BUILTIN_D
2561 #undef RS6000_BUILTIN_H
2562 #undef RS6000_BUILTIN_P
2563 #undef RS6000_BUILTIN_Q
2564 #undef RS6000_BUILTIN_X
2566 enum rs6000_builtin_type_index
2568 RS6000_BTI_NOT_OPAQUE
,
2569 RS6000_BTI_opaque_V2SI
,
2570 RS6000_BTI_opaque_V2SF
,
2571 RS6000_BTI_opaque_p_V2SI
,
2572 RS6000_BTI_opaque_V4SI
,
2583 RS6000_BTI_unsigned_V16QI
,
2584 RS6000_BTI_unsigned_V1TI
,
2585 RS6000_BTI_unsigned_V8HI
,
2586 RS6000_BTI_unsigned_V4SI
,
2587 RS6000_BTI_unsigned_V2DI
,
2588 RS6000_BTI_bool_char
, /* __bool char */
2589 RS6000_BTI_bool_short
, /* __bool short */
2590 RS6000_BTI_bool_int
, /* __bool int */
2591 RS6000_BTI_bool_long
, /* __bool long */
2592 RS6000_BTI_pixel
, /* __pixel */
2593 RS6000_BTI_bool_V16QI
, /* __vector __bool char */
2594 RS6000_BTI_bool_V8HI
, /* __vector __bool short */
2595 RS6000_BTI_bool_V4SI
, /* __vector __bool int */
2596 RS6000_BTI_bool_V2DI
, /* __vector __bool long */
2597 RS6000_BTI_pixel_V8HI
, /* __vector __pixel */
2598 RS6000_BTI_long
, /* long_integer_type_node */
2599 RS6000_BTI_unsigned_long
, /* long_unsigned_type_node */
2600 RS6000_BTI_long_long
, /* long_long_integer_type_node */
2601 RS6000_BTI_unsigned_long_long
, /* long_long_unsigned_type_node */
2602 RS6000_BTI_INTQI
, /* intQI_type_node */
2603 RS6000_BTI_UINTQI
, /* unsigned_intQI_type_node */
2604 RS6000_BTI_INTHI
, /* intHI_type_node */
2605 RS6000_BTI_UINTHI
, /* unsigned_intHI_type_node */
2606 RS6000_BTI_INTSI
, /* intSI_type_node */
2607 RS6000_BTI_UINTSI
, /* unsigned_intSI_type_node */
2608 RS6000_BTI_INTDI
, /* intDI_type_node */
2609 RS6000_BTI_UINTDI
, /* unsigned_intDI_type_node */
2610 RS6000_BTI_INTTI
, /* intTI_type_node */
2611 RS6000_BTI_UINTTI
, /* unsigned_intTI_type_node */
2612 RS6000_BTI_float
, /* float_type_node */
2613 RS6000_BTI_double
, /* double_type_node */
2614 RS6000_BTI_long_double
, /* long_double_type_node */
2615 RS6000_BTI_dfloat64
, /* dfloat64_type_node */
2616 RS6000_BTI_dfloat128
, /* dfloat128_type_node */
2617 RS6000_BTI_void
, /* void_type_node */
2618 RS6000_BTI_ieee128_float
, /* ieee 128-bit floating point */
2619 RS6000_BTI_ibm128_float
, /* IBM 128-bit floating point */
2620 RS6000_BTI_const_str
, /* pointer to const char * */
2625 #define opaque_V2SI_type_node (rs6000_builtin_types[RS6000_BTI_opaque_V2SI])
2626 #define opaque_V2SF_type_node (rs6000_builtin_types[RS6000_BTI_opaque_V2SF])
2627 #define opaque_p_V2SI_type_node (rs6000_builtin_types[RS6000_BTI_opaque_p_V2SI])
2628 #define opaque_V4SI_type_node (rs6000_builtin_types[RS6000_BTI_opaque_V4SI])
2629 #define V16QI_type_node (rs6000_builtin_types[RS6000_BTI_V16QI])
2630 #define V1TI_type_node (rs6000_builtin_types[RS6000_BTI_V1TI])
2631 #define V2DI_type_node (rs6000_builtin_types[RS6000_BTI_V2DI])
2632 #define V2DF_type_node (rs6000_builtin_types[RS6000_BTI_V2DF])
2633 #define V2SI_type_node (rs6000_builtin_types[RS6000_BTI_V2SI])
2634 #define V2SF_type_node (rs6000_builtin_types[RS6000_BTI_V2SF])
2635 #define V4HI_type_node (rs6000_builtin_types[RS6000_BTI_V4HI])
2636 #define V4SI_type_node (rs6000_builtin_types[RS6000_BTI_V4SI])
2637 #define V4SF_type_node (rs6000_builtin_types[RS6000_BTI_V4SF])
2638 #define V8HI_type_node (rs6000_builtin_types[RS6000_BTI_V8HI])
2639 #define unsigned_V16QI_type_node (rs6000_builtin_types[RS6000_BTI_unsigned_V16QI])
2640 #define unsigned_V1TI_type_node (rs6000_builtin_types[RS6000_BTI_unsigned_V1TI])
2641 #define unsigned_V8HI_type_node (rs6000_builtin_types[RS6000_BTI_unsigned_V8HI])
2642 #define unsigned_V4SI_type_node (rs6000_builtin_types[RS6000_BTI_unsigned_V4SI])
2643 #define unsigned_V2DI_type_node (rs6000_builtin_types[RS6000_BTI_unsigned_V2DI])
2644 #define bool_char_type_node (rs6000_builtin_types[RS6000_BTI_bool_char])
2645 #define bool_short_type_node (rs6000_builtin_types[RS6000_BTI_bool_short])
2646 #define bool_int_type_node (rs6000_builtin_types[RS6000_BTI_bool_int])
2647 #define bool_long_type_node (rs6000_builtin_types[RS6000_BTI_bool_long])
2648 #define pixel_type_node (rs6000_builtin_types[RS6000_BTI_pixel])
2649 #define bool_V16QI_type_node (rs6000_builtin_types[RS6000_BTI_bool_V16QI])
2650 #define bool_V8HI_type_node (rs6000_builtin_types[RS6000_BTI_bool_V8HI])
2651 #define bool_V4SI_type_node (rs6000_builtin_types[RS6000_BTI_bool_V4SI])
2652 #define bool_V2DI_type_node (rs6000_builtin_types[RS6000_BTI_bool_V2DI])
2653 #define pixel_V8HI_type_node (rs6000_builtin_types[RS6000_BTI_pixel_V8HI])
2655 #define long_long_integer_type_internal_node (rs6000_builtin_types[RS6000_BTI_long_long])
2656 #define long_long_unsigned_type_internal_node (rs6000_builtin_types[RS6000_BTI_unsigned_long_long])
2657 #define long_integer_type_internal_node (rs6000_builtin_types[RS6000_BTI_long])
2658 #define long_unsigned_type_internal_node (rs6000_builtin_types[RS6000_BTI_unsigned_long])
2659 #define intQI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTQI])
2660 #define uintQI_type_internal_node (rs6000_builtin_types[RS6000_BTI_UINTQI])
2661 #define intHI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTHI])
2662 #define uintHI_type_internal_node (rs6000_builtin_types[RS6000_BTI_UINTHI])
2663 #define intSI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTSI])
2664 #define uintSI_type_internal_node (rs6000_builtin_types[RS6000_BTI_UINTSI])
2665 #define intDI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTDI])
2666 #define uintDI_type_internal_node (rs6000_builtin_types[RS6000_BTI_UINTDI])
2667 #define intTI_type_internal_node (rs6000_builtin_types[RS6000_BTI_INTTI])
2668 #define uintTI_type_internal_node (rs6000_builtin_types[RS6000_BTI_UINTTI])
2669 #define float_type_internal_node (rs6000_builtin_types[RS6000_BTI_float])
2670 #define double_type_internal_node (rs6000_builtin_types[RS6000_BTI_double])
2671 #define long_double_type_internal_node (rs6000_builtin_types[RS6000_BTI_long_double])
2672 #define dfloat64_type_internal_node (rs6000_builtin_types[RS6000_BTI_dfloat64])
2673 #define dfloat128_type_internal_node (rs6000_builtin_types[RS6000_BTI_dfloat128])
2674 #define void_type_internal_node (rs6000_builtin_types[RS6000_BTI_void])
2675 #define ieee128_float_type_node (rs6000_builtin_types[RS6000_BTI_ieee128_float])
2676 #define ibm128_float_type_node (rs6000_builtin_types[RS6000_BTI_ibm128_float])
2677 #define const_str_type_node (rs6000_builtin_types[RS6000_BTI_const_str])
2679 extern GTY(()) tree rs6000_builtin_types
[RS6000_BTI_MAX
];
2680 extern GTY(()) tree rs6000_builtin_decls
[RS6000_BUILTIN_COUNT
];
2682 #define TARGET_SUPPORTS_WIDE_INT 1
2684 #if (GCC_VERSION >= 3000)
2685 #pragma GCC poison TARGET_FLOAT128 OPTION_MASK_FLOAT128 MASK_FLOAT128