Commit graph

122 commits

Author SHA1 Message Date
Ian Lance Taylor
41a0ed225b * config/tc-mips.c (mips16_extended_frag): Give an error for an
attempt to use a non absolute symbol in an extending frag.
1996-12-10 16:38:22 +00:00
Ian Lance Taylor
559c664adb * config/tc-mips.c (mips16_extended_frag): Avoid an infinite loop
when extending because the value is exactly maxtiny + 1.
1996-12-09 23:34:20 +00:00
Ian Lance Taylor
8728fa9263 * config/tc-mips.c (RELAX_MIPS16_ENCODE): Add small and ext
arguments, and store them.  Adjust other RELAX_MIPS16 macros.
	(RELAX_MIPS16_USER_SMALL): Define.
	(RELAX_MIPS16_USER_EXT): Define.
	(mips16_small, mips16_ext): New static variables.
	(append_insn): Pass mips16_small and mips16_ext to
	RELAX_MIPS16_ENCODE.
	(mips16_ip): Set mips16_small and mips16_ext.
	(mips16_immed): Don't check mips16_autoextend.
	(mips16_extended_frag): Check USER_SMALL and USER_EXT.
1996-12-09 23:26:15 +00:00
Ian Lance Taylor
f74ba7a3d9 * config/tc-mips.c (mips16_extended_frag): Don't call
S_GET_VALUE.
	(md_convert_frag): Call resolve_symbol_value before calling
	S_GET_VALUE, and don't add in the frag address.
1996-12-07 00:32:05 +00:00
Ian Lance Taylor
15e69f9816 * config/tc-mips.c (mips16_immed): Add file and line parameters,
and use them when reporting errors.  Change all callers.
1996-12-06 23:51:01 +00:00
Ian Lance Taylor
943321c07d * config/tc-mips.c (md_longopts): Rename mips-16 to mips16, and
no-mips-16 to no-mips16.
	(s_mipsset): Accept .set mips16 and .set nomips16.
1996-12-04 18:01:48 +00:00
Ian Lance Taylor
cc5703cd74 Add support for mips16 (16 bit MIPS implementation):
* config/tc-mips.c: Extensive additions for mips16 support, not
	listed here.
	(RELAX_OLD, RELAX_NEW): Use only 7 bits each.
	(insn_uses_reg): Change last parameter to an enum.
	* config/tc-mips.h (LOCAL_LABELS_DOLLAR): Define as 0.
	(md_relax_frag): Define as mips_relax_frag.
	(mips_relax_frag): Declare.
	(struct mips_cl_insn): Add use_extend and extend fields.
	(tc_fix_adjustable): Define.
	* config/obj-elf.h (S_GET_OTHER): Define.
	(S_SET_OTHER): Define.
1996-11-26 16:44:22 +00:00
Ian Lance Taylor
bf39474f15 * config/tc-mips.c (cons_fix_new_mips): Only treat 8 byte reloc
specially if not ELF.
	(md_apply_fix): Handle BFD_RELOC_64.
	(tc_gen_reloc): Handle BFD_RELOC_64.
1996-10-22 00:01:33 +00:00
Ian Lance Taylor
538034cfb5 * config/tc-mips.c (mips_ip): Accept an odd floating point
register with l.s or s.s.
1996-10-18 19:33:03 +00:00
Ian Lance Taylor
0267c6c9c2 * config/tc-mips.c (load_register): Add cast to offsetT when using
a constant with &~.
1996-10-14 18:00:19 +00:00
Ian Lance Taylor
5e1e8f23cf * as.h: Include libiberty.h.
(xmalloc, xrealloc): Don't declare.
	* as.c: Don't include libiberty.h.
	* expr.c, read.c, stabs.c, config/obj-coff.c: Likewise.
	* config/tc-mips.c: Likewise.
	* messages.c: Likewise.
	(xstrerror): Don't declare.
	* xmalloc.c: Remove.
1996-10-08 17:15:20 +00:00
Ian Lance Taylor
ca296aab0e Don't set interlocks for r5000. Rely on -mips4 settings. 1996-09-10 01:12:35 +00:00
Ian Lance Taylor
d31a3f5e76 * config/tc-mips.c (append_insn): Don't swap an instruction which
sets a condition code with an instruction which uses a condition
	code.
	(mips_ip): In cases 'N' and 'M', look for $fccN rather than an
	immediate value.
1996-09-09 18:37:10 +00:00
Ian Lance Taylor
517078c1b3 * config/tc-mips.c (md_begin): Recognize r5000 for cpu. If
mips_cpu is 5000, set interlocks and cop_interlocks.
	(mips_ip): Give a better error message if the ISA level is wrong.
	(md_parse_option): Recognize -mcpu=[v][r]5000.
1996-09-09 15:04:59 +00:00
Jackie Smith Cashion
ff8716f58e Sat Sep 7 13:25:55 1996 James G. Smith <jsmith@cygnus.co.uk>
* config/tc-mips.c (COUNT_TOP_ZEROES): Added macro to count
 	leading zeroes.
	(load_register): Ensure hi32 bits are not lost during lo32bit
 	processing. Fix shift offset that was overflowing into the next
 	instruction field. Add code to generate shorter sequences for
 	constants with a single contiguous seqeuence of ones.

Fri Sep  6 18:23:54 1996  James G. Smith  <jsmith@cygnus.co.uk>

	* gas/mips/dli.{s,d}: More test cases added.

NOTE: The COUNT_TOP_ZEROES macro is a bit bulky, and the same result
can be achieved by using a "standard" ffs() routine:
	count = ffs(~v);
	count = count == 0 ? 0 : 33 - count;

However the following timings (VR4300 CPU clock ticks on a CMA101
board) show the performance gain.

Number of	ffs()		for loop	if/then/else	conditional
leading								   ?:
zeroes
-------------------------------------------------------------------------------
  0		 167		 179		266		251
  1		1718		 283		263		259
  2		1670		 379		287		295
  3		1622		 475		311		311
  4		1574		 571		295		287
  5		1534		 667		311		319
  6		1478		 763		307		299
  7		1430		 859		323		323
  8		1382		 962		287		295
  9		1334		1051		319		311
 10		1286		1154		299		307
 11		1238		1250		323		331
 12		1183		1346		299		307
 13		1135		1442		331		323
 14		1087		1546		311		319
 15		1039		1642		335		343
 16		 991		1730		295		287
 17		 950		1834		311		319
 18		 895		1922		307		299
 19		 847		2026		331		323
 20		 799		2122		307		299
 21		 751		2218		323		323
 22		 703		2314		311		311
 23		 655		2417		343		335
 24		 599		2506		307		299
 25		 559		2602		331		331
 26		 511		2705		311		319
 27		 463		2801		343		335
 28		 407		2897		311		319
 29		 367		2993		343		335
 30		 311		3097		323		331
 31		 271		3185		355		355
 32		 215		3233		379		371
1996-09-07 12:45:19 +00:00
Ian Lance Taylor
711254da6c * config/tc-mips.c (load_register): Remove unused variable tmp. 1996-09-04 14:26:20 +00:00
Jackie Smith Cashion
1b68deb599 Wed Sep 4 11:24:29 1996 James G. Smith <jsmith@cygnus.co.uk>
* config/tc-mips.c (load_register): Remove unnecessary code that
 	was causing the high 32bits of 64bit constants to be lost.

Fixes PR10503. The compiler was producing the assembler code:
	dli $3,0xfffffffffffff
when constructing the softfloat library. Unfortunately it was being
incorrectly assembled.
1996-09-04 13:15:28 +00:00
Ian Lance Taylor
cf32394d07 * config/tc-mips.c (md_section_align): Do align if OBJ_ELF, but
not to more than a 16 byte boundary.
1996-08-07 17:17:33 +00:00
Ian Lance Taylor
10a14e3639 * config/tc-mips.c (md_section_align): Don't change addr if
OBJ_ELF.
PR 10181.
1996-08-02 15:30:09 +00:00
Ian Lance Taylor
97aca1bcdf * config/tc-mips.c (tc_gen_reloc): BFD_RELOC_PCREL_HI16_S and
BFD_RELOC_PCREL_LO16 are expected to be PC relative.
1996-07-22 18:03:41 +00:00
Ian Lance Taylor
a8aed9ddfb * config/tc-mips.c (mips_regmask_frag): Only define if OBJ_ELF or
OBJ_MAYBE_ELF.
	(tc_gen_reloc): If fixup was changed to be PC relative, change
 	reloc type accordingly.  Use name of reloc in error message.
1996-07-08 23:16:00 +00:00
Ian Lance Taylor
5af96dce32 Based on patches from Tom Quiggle <quiggle@sgi.com>:
* ecoff.c (last_lineno): New static variable.
	(add_procedure): Set last_lineno.
	(ecoff_directive_loc): Likewise.
	(ecoff_generate_asm_lineno): Likewise.
	(ecoff_fix_loc): New function.
	* ecoff.h (ecoff_fix_loc): Declare.
	* config/tc-mips.c (append_insn): When inserting nops, and using
	ECOFF debugging, call ecoff_fix_loc.
1996-07-03 20:15:38 +00:00
Ian Lance Taylor
0b916ef7a6 remove debugging code 1996-06-27 16:12:22 +00:00
Jackie Smith Cashion
344a8d61a1 Wed Jun 26 16:23:08 1996 James G. Smith <jsmith@cygnus.co.uk>
* config/tc-mips.c: Added cop_interlocks, to avoid NOP insertion
 	between co-processor comparisons and branches for the VR4300.

The preliminary documentation was slightly unclear on this issue, but
NEC have confirmed that there is an interlock within the CPU.
1996-06-26 15:28:00 +00:00
Ian Lance Taylor
9753202d00 * config/tc-mips.c (mips_ip): In cases 'I', 'i', and 'j', set
insn_error rather than calling check_absolute_expr.
1996-06-19 18:34:30 +00:00
Ian Lance Taylor
9c44af609b * config/tc-mips.c (md_parse_option): Check for a 64 bit format
before permitting -64.
	* output-file.c (output_file_create): Remove duplicate
	bfd_perror.
1996-06-02 01:55:28 +00:00
Ian Lance Taylor
871781804f * config/tc-mips.c (md_begin): If -64, create a .MIPS.options
section rather than a .reginfo section.
	(mips_elf_final_processing): If -64, write out 64 bit RegInfo
	information.
1996-05-31 21:46:14 +00:00
Ian Lance Taylor
98bfd087ca * config/tc-mips.c (load_register): If mips_isa < 3, permit a 32
bit value with the high bit set.
1996-05-31 05:10:20 +00:00
Ian Lance Taylor
7f9880e5de * config/tc-mips.c (mips_64): New static variable.
(mips_target_format): If mips_64, return elf64 targets rather than
	elf32 ones.
	(md_longopts): Add "32" and "64".
	(md_parse_option): Handle -32 and -64.
	(md_show_usage): Mention -32 and -64.
	(cons_fix_new_mips): If mips_64, don't convert an 8 byte reloc to
	a 4 byte one.
1996-05-30 23:08:47 +00:00
Ian Lance Taylor
a40aee3822 * config/tc-mips.c (macro): When passing X_add_number to
macro_build, cast it to int first.
1996-05-29 20:46:07 +00:00
Ian Lance Taylor
9b61d62b9f * config/tc-mips.c (mips_ip): Mark sections created to hold
floating point information as read only.
1996-05-25 01:25:27 +00:00
Ian Lance Taylor
7a15a226ad * config/tc-mips.c (load_address): Cast X_add_number to valueT
before comparing against MAX_GPREL_OFFSET, so that negative
	numbers are handled correctly.
	(macro): Likewise.
1996-04-15 16:28:19 +00:00
Ian Lance Taylor
867a58b368 * config/tc-mips.h (tc_frob_file): Define.
(mips_frob_file): Declare.
	* config/tc-mips.c (struct mips_hi_fixup): Define.
	(mips_hi_fixup_list): New static variable.
	(imm_unmatched_hi): New static variable.
	(md_assemble): Clear imm_reloc, imm_unmatched_hi, and
	offset_reloc.  Pass imm_unmatched_hi to append_insn.
	(append_insn): Add unmatched_hi parameter.  If it is set, add the
	new fixup to mips_hi_fixup_list.  Change all callers.
	(mips_ip): Set imm_unmatched_hi when appropriate.
	(mips_frob_file): New function.
1996-03-28 20:37:02 +00:00
Ian Lance Taylor
fb251650e9 * config/tc-mips.c (mips_big_got): New static variable.
(s_extern): Don't declare.
	(reg_needs_delay): New static function.
	(macro_build): Permit GOT/CALL_HI/LO relocs.
	(macro_build_lui): If place is not NULL, use the number in the
	expression.
	(load_address): Handle mips_big_got case.
	(macro): Handle mips_big_got for M_LA_AB, M_JAL_A, and load and
	store macros.
	(OPTION_XGOT): Define.
	(md_longopts): Add "xgot" if OBJ_ELF.
	(md_parse_option): Handle -xgot.
	(md_show_usage): Mention -xgot.
	(md_apply_fix): Permit GOT/CALL_HI/LO relocs.
	(tc_gen_reloc): Handle GOT/CALL_HI/LO relocs.
1996-02-14 18:49:27 +00:00
Jackie Smith Cashion
c625fc23ba Added command-line support for NEC VR4100, to allow support for
4100-specific instructions.
1995-10-23 11:20:02 +00:00
Ian Lance Taylor
e532b44c23 Tue Jul 11 14:28:55 1995 Jeff Spiegel <jeffs@lsil.com>
* config/tc-mips.c (mips_4010): New static variable.
	(interlocks): New static variable.
	(md_begin): Check for a cpu of "r4010".  Set mips_4010 correctly.
	If mips_4650 or mips_4010, set interlocks.
	(append_insn): Check interlocks, not mips_4650.
	(mips_emit_delays): Likewise.
	(mips_ip): Only permit INSN_4010 instructions if mips_4010.
	(md_longopts): Add "m4010" and "no-m4010".
	(md_parse_option): Accept -mcpu=r4010.  Handle -m4010 and
	-no-m4010.
	(md_show_usage): Document -m4010 and -no-m4010.
1995-07-11 18:30:25 +00:00
Ian Lance Taylor
3af584b4a1 Correct last change 1995-07-05 16:25:44 +00:00
Ian Lance Taylor
22ba90ce85 * ecoff.c (ecoff_debugging_seen): New global variable.
(ecoff_directive_def): Set ecoff_debugging_seen.
	(ecoff_stab): Likewise.
	* ecoff.h: Make idempotent.
	(ecoff_debugging_seen): Declare.
	* config/tc-mips.c: Include ecoff.h.
	(mips_debug): New static variable.
	(s_stringer, s_mips_space): Remove unneeded declarations.
	(md_parse_option): In case 'g', set mips_debug to debugging level.
	(mips_local_label): New function.
	* tc-mips.h (LOCAL_LABEL): Call mips_local_label.
	(mips_local_label): Declare.
PR 6978.
1995-07-05 16:10:50 +00:00
Ken Raeburn
739708fa4a Make Irix 5 configuration work again:
* config/obj-multi.h (obj_frob_symbol, obj_frob_file, S_GET_SIZE, S_SET_SIZE,
S_GET_ALIGN, S_SET_ALIGN, obj_copy_symbol_attributes, OBJ_PROCESS_STAB): New
macros.
* config/tc-mips.c: Protect against redefining them also when including
obj-elf.h.  Test only OBJ_ELF for including elf/mips.h.
1995-05-16 22:28:26 +00:00
Ken Raeburn
1dc1e7989f * config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.

* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-02 19:33:00 +00:00
Ken Raeburn
d8a1c247ae Fix for PR6697:
(nopic_need_relax): New static function, split out from
md_estimate_size_before_relax.
(md_estimate_size_before_relax): Call it.
(load_address, macro): In NO_PIC branches, if nopic_need_relax returns nonzero,
don't attempt GP optimization.
1995-04-11 01:29:49 +00:00
Ian Lance Taylor
6b67ed7865 tweak previous patch 1995-02-24 20:25:52 +00:00
Ian Lance Taylor
7811254cb0 * config/tc-mips.c (load_register): Correctly handle 32 bit values
with the high bit set in 64 bit mode.
PR 6381.
1995-02-24 19:42:43 +00:00
Ian Lance Taylor
546f553610 * config/tc-mips.c (append_insn): If listing_prev_line is called,
call frag_grow to make sure there is still room for a variant.
1995-02-23 02:20:57 +00:00
Ian Lance Taylor
61420a2049 * config/tc-mips.c (md_pseudo_table): Add 2byte, 4byte and 8byte
if OBJ_ELF.  From gary@Intrepid.COM (Gary Funck).
1995-02-17 20:13:41 +00:00
Ian Lance Taylor
49ad0c4cf3 * config/tc-mips.c (md_apply_fix): Accept BFD_RELOC_16, for
DWARF.  From gary@Intrepid.COM (Gary Funck).
1995-02-15 21:08:05 +00:00
Ian Lance Taylor
adcf2b9d57 * config/tc-mips.c (macro): Handle M_U{L,S}D[_A] (unaligned double
loads and stores).
1995-02-15 20:43:57 +00:00
Ian Lance Taylor
b2b8c24e2f * config/tc-mips.c (macro): Don't use the target register as a
base register when building the address for M_L{W,D}{L,R}_AB.
1995-02-15 16:48:18 +00:00
Ken Raeburn
3a762a0bfd Use new hex-value code in libiberty:
* Makefile.in (VMS_OTHER_OBJS): Add ../libiberty/hex.o.
(OBJS): Delete hex-value.o.
(REAL_SOURCES): Delete hex-value.c.
(hex-value.o): Delete dependencies.
* hex-value.c: Deleted.
* as.c (main): Call hex_init.
* expr.c, config/tc-mips.c: Include libiberty.h.  Replace hex_value array
references with hex_* macros.
1995-01-12 23:00:26 +00:00
Ken Raeburn
483971bdbf * config/tc-mips.c (RELAX_RELOC1, RELAX_RELOC2): Cast values to bfd_vma before
subtracting.
1995-01-10 01:45:53 +00:00