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comparison gcc/config/mmix/mmix.h @ 55:77e2b8dfacca gcc-4.4.5

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update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
parents a06113de4d67
children b7f97abdc517
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52:c156f1bd5cd9 55:77e2b8dfacca
1 /* Definitions of target machine for GNU compiler, for MMIX. 1 /* Definitions of target machine for GNU compiler, for MMIX.
2 Copyright (C) 2000, 2001, 2002, 2004, 2005, 2007, 2008 2 Copyright (C) 2000, 2001, 2002, 2004, 2005, 2007, 2008, 2009
3 Free Software Foundation, Inc. 3 Free Software Foundation, Inc.
4 Contributed by Hans-Peter Nilsson (hp@bitrange.com) 4 Contributed by Hans-Peter Nilsson (hp@bitrange.com)
5 5
6 This file is part of GCC. 6 This file is part of GCC.
7 7
79 #endif 79 #endif
80 80
81 #define MMIX_FUNCTION_ARG_SIZE(MODE, TYPE) \ 81 #define MMIX_FUNCTION_ARG_SIZE(MODE, TYPE) \
82 ((MODE) != BLKmode ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) 82 ((MODE) != BLKmode ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE))
83 83
84 /* Declarations for helper variables that are not tied to a particular
85 target macro. */
86 extern GTY(()) rtx mmix_compare_op0;
87 extern GTY(()) rtx mmix_compare_op1;
88
89 /* Per-function machine data. This is normally an opaque type just 84 /* Per-function machine data. This is normally an opaque type just
90 defined and used in the tm.c file, but we need to see the definition in 85 defined and used in the tm.c file, but we need to see the definition in
91 mmix.md too. */ 86 mmix.md too. */
92 struct machine_function GTY(()) 87 struct GTY(()) machine_function
93 { 88 {
94 int has_landing_pad; 89 int has_landing_pad;
95 int highest_saved_stack_register; 90 int highest_saved_stack_register;
96 int in_prologue; 91 int in_prologue;
97 }; 92 };
184 #define BITS_BIG_ENDIAN 0 179 #define BITS_BIG_ENDIAN 0
185 #define BYTES_BIG_ENDIAN 1 180 #define BYTES_BIG_ENDIAN 1
186 #define WORDS_BIG_ENDIAN 1 181 #define WORDS_BIG_ENDIAN 1
187 #define FLOAT_WORDS_BIG_ENDIAN 1 182 #define FLOAT_WORDS_BIG_ENDIAN 1
188 #define UNITS_PER_WORD 8 183 #define UNITS_PER_WORD 8
189
190 /* FIXME: Promotion of modes currently generates slow code, extending
191 before every operation. */
192 /* I'm a little bit undecided about this one. It might be beneficial to
193 promote all operations. */
194
195 #define PROMOTE_FUNCTION_MODE(MODE, UNSIGNEDP, TYPE) \
196 do { \
197 if (GET_MODE_CLASS (MODE) == MODE_INT \
198 && GET_MODE_SIZE (MODE) < 8) \
199 { \
200 (MODE) = DImode; \
201 /* Do the following some time later, \
202 scrutinizing differences. */ \
203 if (0) (UNSIGNEDP) = 0; \
204 } \
205 } while (0)
206 184
207 /* We need to align everything to 64 bits that can affect the alignment 185 /* We need to align everything to 64 bits that can affect the alignment
208 of other types. Since address N is interpreted in MMIX as (N modulo 186 of other types. Since address N is interpreted in MMIX as (N modulo
209 access_size), we must align. */ 187 access_size), we must align. */
210 #define PARM_BOUNDARY 64 188 #define PARM_BOUNDARY 64
588 566
589 #define STATIC_CHAIN_REGNUM MMIX_STATIC_CHAIN_REGNUM 567 #define STATIC_CHAIN_REGNUM MMIX_STATIC_CHAIN_REGNUM
590 568
591 569
592 /* Node: Elimination */ 570 /* Node: Elimination */
593 /* FIXME: Is this requirement built-in? Anyway, we should try to get rid
594 of it; we can deduce the value. */
595 #define FRAME_POINTER_REQUIRED cfun->has_nonlocal_label
596 571
597 /* The frame-pointer is stored in a location that either counts to the 572 /* The frame-pointer is stored in a location that either counts to the
598 offset of incoming parameters, or that counts to the offset of the 573 offset of incoming parameters, or that counts to the offset of the
599 frame, so we can't use a single offset. We therefore eliminate those 574 frame, so we can't use a single offset. We therefore eliminate those
600 two separately. */ 575 two separately. */
601 #define ELIMINABLE_REGS \ 576 #define ELIMINABLE_REGS \
602 {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ 577 {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
603 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ 578 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
604 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} 579 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
605 580
606 /* We need not worry about when the frame-pointer is required for other
607 reasons; GCC takes care of those cases. */
608 #define CAN_ELIMINATE(FROM, TO) 1
609
610 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ 581 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
611 (OFFSET) = mmix_initial_elimination_offset (FROM, TO) 582 (OFFSET) = mmix_initial_elimination_offset (FROM, TO)
612 583
613 584
614 /* Node: Stack Arguments */ 585 /* Node: Stack Arguments */
678 #define FUNCTION_PROFILER(FILE, LABELNO) \ 649 #define FUNCTION_PROFILER(FILE, LABELNO) \
679 mmix_function_profiler (FILE, LABELNO) 650 mmix_function_profiler (FILE, LABELNO)
680 651
681 /* Node: Trampolines */ 652 /* Node: Trampolines */
682 653
683 #define TRAMPOLINE_TEMPLATE(FILE) \ 654 #define TRAMPOLINE_SIZE (4*UNITS_PER_WORD)
684 mmix_trampoline_template (FILE) 655 #define TRAMPOLINE_ALIGNMENT BITS_PER_WORD
685
686 #define TRAMPOLINE_SIZE mmix_trampoline_size
687 #define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, STATIC_CHAIN) \
688 mmix_initialize_trampoline (ADDR, FNADDR, STATIC_CHAIN)
689
690 656
691 /* Node: Addressing Modes */ 657 /* Node: Addressing Modes */
692 658
693 #define CONSTANT_ADDRESS_P(X) \ 659 #define CONSTANT_ADDRESS_P(X) \
694 mmix_constant_address_p (X) 660 mmix_constant_address_p (X)
695 661
696 #define MAX_REGS_PER_ADDRESS 2 662 #define MAX_REGS_PER_ADDRESS 2
697
698 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, LABEL) \
699 if (mmix_legitimate_address (MODE, X, MMIX_REG_OK_STRICT)) \
700 goto LABEL
701 663
702 #ifndef REG_OK_STRICT 664 #ifndef REG_OK_STRICT
703 # define REG_OK_FOR_BASE_P(X) \ 665 # define REG_OK_FOR_BASE_P(X) \
704 (REGNO (X) <= MMIX_LAST_GENERAL_REGISTER \ 666 (REGNO (X) <= MMIX_LAST_GENERAL_REGISTER \
705 || REGNO (X) == MMIX_ARG_POINTER_REGNUM \ 667 || REGNO (X) == MMIX_ARG_POINTER_REGNUM \
707 #else 669 #else
708 # define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) 670 # define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
709 #endif /* REG_OK_STRICT */ 671 #endif /* REG_OK_STRICT */
710 672
711 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X) 673 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X)
712
713 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)
714 674
715 #define LEGITIMATE_CONSTANT_P(X) \ 675 #define LEGITIMATE_CONSTANT_P(X) \
716 mmix_legitimate_constant_p (X) 676 mmix_legitimate_constant_p (X)
717 677
718 678