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[gcc.git] / gcc / ChangeLog
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b9dfb357
JL		 1Tue Sep 23 00:33:55 1997 Jeffrey A Law (law@cygnus.com)
2
3 * rs6000/xm-rs6000.h: Fix thinko in last change.
4 * rs6000/xm-sysv4.h: Likewise.
5
4b7e467b
JW		 6Mon Sep 22 19:33:53 1997 Jim Wilson <wilson@cygnus.com>
7
8 * mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.
9
8c8e6faa
JL		 10Mon Sep 22 14:41:00 1997 Jeffrey A Law (law@cygnus.com)
11
12 * reg-stack.c (find_blocks): Fix thinko in last change.
13
078e983e
AS		 141997-09-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
15
16 * m68k.c (output_function_prologue): Add dwarf2 support.
17
18 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM,
19 INCOMING_FRAME_SP_OFFSET): New definitions.
20
d7027667
DM		 21Mon Sep 22 11:36:42 1997 David S. Miller <davem@tanya.rutgers.edu>
22
9524f769
DM		 23 * combine.c (try_combine): Use NULL_RTX instead of '0' where
24 appropriate in calls to gen_rtx().
25 * cse.c (cse_main): Likewise.
26 * emit-rtl.c (gen_label_rtx): Likewise.
27 * expr.c (init_expr_once): Likewise.
28 * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
29 sched_analyze, init_rgn_data_dependences,
30 compute_block_backward_dependences): Likewise.
31 * sched.c (schedule_insns): Likewise.
32 * varasm.c (immed_double_const): Likewise.
33
d7027667
DM		 34 * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
35 SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
36
fbf8b71c
KJ		 37Mon Sep 22 11:21:33 1997 J. Kean Johnston <jkj@sco.com>
38
39 * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
40 (MULTILIB_DEFAULTS): Define.
41 (ASM_SPEC, CPP_SPEC): Handle -mcoff.
42 (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
43 (LIBGCC_SPEC): Likewise.
44 (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
45 (SUBTARGET_SWITCHES): Add -mcoff and -melf.
46 * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
47 (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
48 (EXTRA_PARTS, TAROUTOPTS): Delete.
49 (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
50 (MULTILIB_OPTIONS): Define.
51 (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
52 (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
53
c14a951f
JL		 54Mon Sep 22 02:10:43 1997 Jeffrey A Law (law@cygnus.com)
55
56 * version.c: Bump for snapshot.
57
7014927a
JL		 58Sun Sep 21 17:45:45 1997 Jeffrey A Law (law@cygnus.com)
59
37aa45a2
JL		 60 * loop.c (loop_number): Delete function. Change all references
61 to use uid_loop_num array.
62 * loop.h (loop_number): Delete declaration.
63 * unroll.c (unroll_loop): Change "loop_number" references to
64 use uid_loop_num instead.
65
b47404d1
JL		 66 * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
67 conditional.
68 (loop_unroll_iter): Remove unused variable and all references.
69 (loop_optimize): Always allocate and clear space for loop_unroll_factor.
70 (insert_bct): Fix minor formatting problems.
71 * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
72 (loop_unroll_iter): Removed unused decl.
73 * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
74 Always record the unrolling factor.
75
cb3bb2a7
JL		 76 * cse.c (simplify_relational_operation): Set h0u just like h0s.
77 Similarly for h1u and h1s.
78
d5ff3a2e 79 * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
2a1777af
JL		 80 (find_basic_blocks): Use computed_jump_p to determine if a
81 particular JUMP_INSN is a computed jump.
82 * reg-stack.c (find_blocks): Use computed_jump_p to determine
83 if a particular JUMP_INSN is a computed jump.
84 * rtlanal.c (jmp_uses_reg_or_mem): New function.
85 (computed_jump_p): Likewise.
86 * rtl.h (computed_jump_p): Declare.
87 * genattrtab.c (pc_rtx): Define and initialize.
88 * loop.c (loop_optimize): Always determine if the current
89 function has a computed jump.
90 (indirect_jump_in_function_p): Use computed_jump_p to determine
91 if a particular JUMP_INSN is a computed jump.
92
7014927a
JL		 93 * loop.c (fix_bct_param): Delete unused function.
94 (check_bct_param): Likewise.
95
6d53d7c2
JM		 96Sat Sep 20 16:22:06 1997 Jason Merrill <jason@yorick.cygnus.com>
97
98 * frame.c (__deregister_frame): Check properly for initialized object.
99
71e4fbe6
L		 100Fri Sep 19 20:51:03 199 H.J. Lu (hjl@gnu.ai.mit.edu)
101
102 * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
103
272299b9
R		 104Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
105
cc5e1642
R		 106 * jump.c (thread_jumps): check can_reverse_comparison_p before
107 threading a reversed-condition jump.
108
272299b9
R		 109 * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
110 * haifa-sched.c (update_flow_info): Likewise.
111
18511014
JL		 112Thu Sep 18 21:13:40 1997 Jeffrey A Law (law@cygnus.com)
113
e6493727
JL		 114 * Makefile.in (BOOT_CFLAGS): Use -O2.
115
1e467e19
JL		 116 * configure.in (strtoul, bsearch): Have autoconf check for these
117 functions.
118 * configure, config.in: Rebuilt.
119
18511014
JL		 120 * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
121 * mips/mips.h (alloca): Likewise.
122 * rs6000/xm-rs6000.h (alloca): Likewise.
123 * rs6000/xm-sysv4.h: Likewise.
124
6020d360
JM		 125Thu Sep 18 14:22:22 1997 Jason Merrill <jason@yorick.cygnus.com>
126
127 * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
128 * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
129 (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
130
131 * except.c (end_eh_unwinder): Subtract 1 from return address.
132 * libgcc2.c (__throw): Likewise.
133 (find_exception_handler): Don't change PC here. Compare end with >.
134
b24bcfb3
NC		 135Thu Sep 18 10:43:07 1997 Nick Clifton <nickc@cygnus.com>
136
137 * v850.c (compute_register_save_size): Correct register
138 number.
139 * v850.md (save_interrupt, return_interrupt): Correct
140 register number.
141 * v850/lib1funcs.asm (save_interrupt): Correct register number.
142 (return_interrupt): Use stack pointer, not element pointer.
143
93cf819d
BK		 1441997-09-18 Brendan Kehoe <brendan@lisa.cygnus.com>
145
146 * configure.in, configure: Make sure to create the stage* and include
147 symbolic links in each subdirectory.
148
f0501149
JL		 149Thu Sep 18 01:47:06 1997 Jeffrey A Law (law@cygnus.com)
150
151 * pa.md (reload_peepholes): Don't allow addresses with side
152 effects for the memory operand.
153
4f870c04
JM		 154Wed Sep 17 18:19:53 1997 Jason Merrill <jason@yorick.cygnus.com>
155
156 * libgcc2.c (find_exception_handler): Subtract one from our PC when
157 looking for a handler, to avoid hitting the beginning of the next
158 region.
159
160 * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
161
4eb66248
JL		 162Wed Sep 17 18:33:59 1997 Jeffrey A Law (law@cygnus.com)
163
164 * mips/abi64.h (LONG_MAX_SPEC): Define.
165 * mips.h (LONG_MAX_SPEC): Define.
166 (CPP_SPEC): Include long_max_spec.
167 (EXTRA_SPECS): Include long_max_spec.
168
44158507
JL		 169Wed Sep 17 14:11:38 1997 Jeffrey A Law (law@cygnus.com)
170
171 * v850.c (construct_save_jarl): Fix thinko in last change.
172
bf520cd9
JL		 173Wed Sep 17 09:53:07 1997 Jeffrey A Law (law@cygnus.com)
174
175 * version.c: Bump for snapshot.
176
255fe733
JM		 177Tue Sep 16 14:22:36 1997 Jason Merrill <jason@yorick.cygnus.com>
178
c0727e2a
JM		 179 * libgcc2.c (find_exception_handler): Not found is -1.
180
255fe733
JM		 181 * integrate.c (expand_inline_function): Move expand_start_bindings
182 after expanding the arguments.
183
21002281
JW		 184Tue Sep 16 11:13:46 1997 Jim Wilson <wilson@cygnus.com>
185
186 * expr.c (expand_expr): Remove previous incorrect change.
187 If target and slot has no DECL_RTL, then call mark_addressable
188 again for the slot after we give it RTL.
189
e693cc28 190Tue Sep 16 09:18:52 1997 Jason Merrill (jason@cygnus.com)
f633220c 191
e693cc28
UD		 192 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
193 again for the slot after we give it RTL.
f633220c 194
145870b5
NC		 195Tue Sep 16 00:13:20 1997 Nick Clifton <nickc@cygnus.com>
196
84e75068 197 * v850.c (register_is_ok_for_epilogue,
145870b5
NC		 198 pattern_is_ok_for_epilogue, construct_restore_jr,
199 pattern_is_ok_for_prologue, construct_save_jarl): New functions.
200
84e75068 201 * v850.h (pattern_is_ok_for_prologue,
145870b5
NC		 202 pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
203 predicates.
204
84e75068 205 * v850.md: Replace prologue and epilogue patterns with a
145870b5
NC		 206 match_parallel pattern.
207
76143254
JL		 208Mon Sep 15 22:53:01 1997 Jeffrey A Law (law@cygnus.com)
209
210 * aclocal.m4: Add replacement for AC_PROG_INSTALL.
211 * configure.in: Use EGCS_PROG_INSTALL.
212
4401bf24
JL		 213Mon Sep 15 22:40:55 1997 Jim Wilson (wilson@cygnus.com)
214
215 * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
216 extern inline function.
217
218Mon Sep 15 22:40:55 1997 Richard Henderson (rth@cygnus.com)
219
220 * dwarf2out.c (reg_loc_descriptor): Fix prototype.
221 (concat_loc_descriptor): New function.
222 (loc_descriptor): Call it.
223 (add_AT_location_description): Also elide the descriptor if both
224 halves of a CONCAT are pseudos.
225 (add_location_or_const_value_attribute): Recognize CONCAT too.
226
0d24ff5d
RH		 227Mon Sep 15 15:24:00 1997 Richard Henderson <rth@cygnus.com>
228
4bb43724
RH		 229 * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
230
0d24ff5d
RH		 231 * alpha/alpha.c (output_prolog): New variable sa_reg. Use it for
232 out-or-range reg_offset.
233 (output_epilog): Likewise.
234
05ef8897
JL		 235Mon Sep 15 15:39:26 1997 Jeffrey A Law (law@cygnus.com)
236
237 * cse.c (simplify_relational_operation): If MODE specifies a
238 mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
239 is derived from the sign bit of the low word.
240
ca55abae
JM		 241Mon Sep 15 11:43:38 1997 Jason Merrill <jason@yorick.cygnus.com>
242
243 Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
244
245 * dwarf2.h: Add DW_CFA_GNU_args_size.
246 * frame.c (execute_cfa_insn): Likewise.
247 * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
248 (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
249 (dwarf2out_frame_debug): If this isn't a prologue or epilogue
250 insn, hand it off to dwarf2out_stack_adjust.
251 (dwarf2out_begin_prologue): Initialize args_size.
252 * frame.h (struct frame_state): Add args_size.
253 * libgcc2.c (__throw): Use args_size.
254 * final.c (final_scan_insn): If we push args, hand off all insns
255 to dwarf2out_frame_debug.
256 * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
257
258 * dwarf2out.c dwarf2out_frame_debug): Fix typo.
259 Handle epilogue restore of SP from FP.
260 * emit-rtl.c (gen_sequence): Still generate a sequence if the
261 lone insn has RTX_FRAME_RELATED_P set.
262
263 * frame.c (extract_cie_info): Handle "e" augmentation.
264 * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
265 absence of UNALIGNED_*_ASM_OP.
266 (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
267 (output_call_frame_info): Use "e" instead of "z" for augmentation.
268 Don't emit augmentation fields length.
269 (dwarf2out_do_frame): Move outside of #ifdefs.
270 * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
271 opcodes.
272
273 * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
274 * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
275 * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
276 * sparc/sun4gas.h: New file.
277 * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
278
279 * collect2.c (write_c_file_stat, write_c_file_glob): Declare
280 __register_frame_table and __deregister_frame.
281
1d77fa53
BK		 2821997-09-15 Brendan Kehoe <brendan@cygnus.com>
283
284 * except.c (find_exception_handler_labels): Use xmalloc instead of
285 alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
286 in some cases.
287
8be52aaa
JL		 288Sun Sep 14 21:01:23 1997 Jeffrey A Law (law@cygnus.com)
289
290 * Makefile.in: Various changes to build info files
291 in the object tree rather than the source tree.
292
a3ee3246
JL		 293Sun Sep 14 12:24:30 1997 Jeffrey A Law (law@cygnus.com)
294
295 * fixinc.math: New file to fix math.h on some systems.
296 * configure.in (freebsd, netbsd): Use fixinc.math on these
297 systems.
298 * configure: Rebuilt.
299
124da275
JL		 300Sun Sep 14 11:11:05 1997 Jeffrey A Law (law@cygnus.com)
301
302 * regmove.c (regmove_optimize): If we end up moving the
303 original insn due to lifetime overlaps, make sure to move
304 REG_NOTES too.
305
fca9d4b0
MH		 306Sat Sep 13 15:51:11 1997 Manfred Hollstein <manfred@s-direktnet.de>
307
308 * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
309
326ee7a3
JL		 310Sat Sep 13 12:57:26 1997 Jeffrey A Law (law@cygnus.com)
311
312 * haifa-sched.c (add_branch_dependences): Make each insn in
313 a SCHED_GROUP_P block explicitly depend on the previous insn.
314
ca55abae
JM		 315Fri Sep 12 13:49:58 1997 Jason Merrill <jason@yorick.cygnus.com>
316
317 * except.h: Prototype dwarf2 hooks.
318 * expr.c: Adjust.
319
5188d2b2
JW		 320Thu Sep 11 17:43:55 1997 Jim Wilson <wilson@cygnus.com>
321
322 * configure.in (native_prefix): Delete.
323 (mips-dec-netbsd): Don't set prefix.
324 (*linux*): Don't set prefix.
325
2e384318
FF		 326Thu Sep 11 15:48:32 1997 Fred Fish <fnf@ninemoons.com>
327
70988851
FF		 328 * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
329 defined. If not defined, include <sys/varargs.h> if
330 HAVE_SYS_VARARGS_H is defined.
331 * configure.in: Test for varargs.h and sys/varargs.h.
332 * configure: Regenerate with autoconf.
333 * config.in: Regenerate with autoheader.
334
2e384318
FF		 335 * cpplib.c (quote_string): Cast first arg of sprintf call
336 from "unsigned char *" to "char *".
337 (output_line_command): Ditto.
338 (macroexpand): Ditto.
339 (do_line): Cast atoi arg from "unsigned char *" to "char *".
340
3fb2f401
JL		 341Wed Sep 10 21:37:30 1997 Jeffrey A Law (law@cygnus.com)
342
f2e4e16f
JL		 343 * version.c: Bump for snapshot.
344
3fb2f401
JL		 345 * Makefile.in (compare): Exit with nonzero status if there
346 are comparison failures. Note which files failed the
347 comparison test in .bad_compare.
348
d26cb668
L		 349Wed Sep 10 17:05:46 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
350
351 * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
352
ac64120e
JW		 353Wed Sep 10 16:37:28 1997 Fred Fish <fnf@ninemoons.com>
354
355 * Makefile.in (LN, LN_S): New macros, use where appropriate.
356 * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
357 * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
358 * configure: Regenerated.
359
360Thu Sep 11 11:09:43 1997 Jeffrey A Law (law@cygnus.com)
361
362 * loop.c (strength_reduce): Fix typo.
363
db87ec0b
JW		 364Wed Sep 10 16:01:15 1997 Jim Wilson <wilson@cygnus.com>
365
366 * m88k/m88k.c (struct option): Rename to struct options.
367 * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
368 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
369 * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
370 __DOLPHIN__ or sysV88.
371
04395f96
JW		 372Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
373
374 * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
375 create new subreg.
376
becdcf6d
JL		 377Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
378
379 * config.sub: Accept 'amigados' for backward compatability.
380
04395f96 381Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
3979dfb8
JW		 382
383 * Makefile.in (testsuite/site.exp): New target.
384 (check-gcc, check-g++): Depend on testsuite/site.exp.
385 Don't stop for failure.
386
ca55abae
JM		 387Wed Sep 10 12:59:57 1997 Jason Merrill <jason@yorick.cygnus.com>
388
389 * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
390 if DWARF2_UNWIND_INFO.
391
392Wed Sep 10 11:49:20 1997 Jason Merrill <jason@yorick.cygnus.com>
393
394 Add support for exception handling using DWARF 2 frame unwind info.
395 Currently works on SPARC and MIPS, and almost on x86.
396
397 * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
398 next_stack_level, in_reg_window): Helper fns.
399 (__throw): Implement for DWARF2_UNWIND_INFO.
400
401 * expr.c (expand_builtin): Handle builtins used by __throw.
402 * tree.h (enum built_in_function): Add builtins used by __throw.
403 * c-decl.c (init_decl_processing): Declare builtins used by __throw.
404 * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
405 * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
406 (expand_builtin_extract_return_addr): Likewise.
407 (expand_builtin_frob_return_addr): Likewise.
408 (expand_builtin_set_return_addr_reg): Likewise.
409 (expand_builtin_eh_stub): Likewise.
410 (expand_builtin_set_eh_regs): Likewise.
411 (eh_regs): Choose two call-clobbered registers for passing back values.
412
413 * frame.c, frame.h: New files for parsing dwarf 2 frame info.
414 * Makefile.in (LIB2ADD): New variable. Add $(srcdir)/frame.c.
415 (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
416 (stmp-multilib): Likewise.
417 ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
418
419 * except.c: #include "defaults.h".
420 (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
421 (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
422 (register_exception_table_p): New fn.
423 (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
424 (end_eh_unwinder): Likewise.
425
426 * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
427 call __register_frame and __deregister_frame as needed.
428 * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
429 * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro. Check
430 EH_FRAME_SECTION_ASM_OP.
431 * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
432 * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
433 (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
434
435 * dwarf2out.c (output_call_frame_info): If no support for
436 EXCEPTION_SECTION, mark the start of the frame info with a
437 collectable tag.
438 * collect2.c (frame_tables): New list.
439 (is_ctor_dtor): Recognise frame entries.
440 (scan_prog_file): Likewise.
441 (main): Pass -fno-exceptions to sub-compile. Also do collection
442 if there are any frame entries.
443 (write_c_file_stat): Call __register_frame_table and
444 __deregister_frame as needed.
445 (write_c_file_glob): Likewise.
446
447 * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
448 Also require unaligned reloc support.
449 * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
450 UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
451 * sparc/sysv4.h: Not here.
452
453 * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
454 * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
455 (dwarf2out_finish): Don't call dwarf2out_frame_finish.
456
457 * libgcc2.c (L_eh): Reorganize, moving code shared by different
458 EH implementations to the top.
459 (find_exception_handler): Split out. Start from 0. Compare against
460 end with >=.
461 (__find_first_exception_table_match): Use it.
462 * except.c (output_exception_table): Don't do anything if there's
463 no table. Don't output a first entry of zeroes.
464 (eh_outer_context): Adjust properly.
465 (add_eh_table_entry): Use xrealloc.
466 * toplev.c (compile_file): Just call output_exception_table.
467
468Wed Sep 10 11:30:36 1997 Jason Merrill <jason@cygnus.com>
469
470 * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
471
472Wed Sep 10 08:17:10 1997 Torbjorn Granlund <tege@pdc.kth..se>
473
474 * except.c (eh_outer_context): Do masking using expand_and.
475
b4d940a2
JL		 476Wed Sep 10 01:38:30 1997 Doug Evans <dje@cygnus.com>
477
478 Add port done awhile ago for the ARC cpu.
479 * arc/arc.h: New file.
480 * arc/arc.c: New file.
481 * arc/arc.md: New file.
482 * arc/initfini.c: New file.
483 * arc/lib1funcs.asm: New file.
484 * arc/t-arc: New file.
485 * arc/xm-arc.h: New file.
486 * ginclude/va-arc.h: New file.
487 * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
488 * ginclude/varargs.h: Likewise.
489 * Makefile.in (USER_H): Add va-arc.h.
490 * configure.in (arc-*-elf*): Recognize.
491 * longlong.h: Add ARC support.
492
493Wed Sep 10 01:32:54 1997 Jeffrey A Law (law@cygnus.com)
494
495 * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
496 when clearing non-BLKmode data.
497
10211581
JL		 498Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
499
9dfc6eba
MH		 500 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
501 * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
502
55259219
MH		 503 * xm-m88k.h (USG): Only define if it hasn't already been defined.
504
505 * Makefile.in (risky-stage1): Delete gratutious whitespace.
506
ee291069
MH		 507 * Makefile.in (clean): Delete libgcc1-test.
508
10211581
JL		 509 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
510
511Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
48f0be1b
SC		 512
513 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
514 template.
515
ca55abae
JM		 516Tue Sep 9 09:50:02 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
517
518 * dwarf2out.c (output_call_frame_info): Call named_section.
519
8f3d79e0
JL		 520Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
521
522 * haifa-sched.c (print_value): Fix last change.
523
ca55abae
JM		 524Tue Sep 9 01:30:37 1997 Jason Merrill <jason@yorick.cygnus.com>
525
526 * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
527 write_symbols.
528
529Mon Sep 8 16:32:43 1997 Jason Merrill <jason@yorick.cygnus.com>
530
531 * mips.c (function_prologue): Set up the CFA when ABI_32.
532
533 * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
534 for dwarf2 unwind info.
535 (output_function_prologue, sparc_flat_output_function_prologue): Same.
536
537 * final.c (final_end_function): Check dwarf2out_do_frame instead
538 of DWARF2_DEBUG for dwarf2 unwind info.
539 (final_scan_insn): Likewise.
540 (final_start_function): Likewise. Initialize dwarf2 frame debug here.
541 (final): Not here.
542
543 * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
544 count > 0.
545
546 * varasm.c (exception_section): Check EXCEPTION_SECTION first.
547
74aca74b
NC		 548Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
549
550 * v850.h (ASM_SPEC): Pass on target processor.
551 (CPP_PREDEFINES): Only define if not already specified.
552 (TARGET_VERSION): Only define if not already specified.
553 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
554 processor.
555 (EXTRA_SWITCHES): Extra entries in the switches array.
556 (TARGET_DEFAULT): Set default target processor.
557
c0b04148
JW		 558Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
559
560 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
561 cases, add %# and %/, and add : to make them into extended asms.
562
52b7724b
WL		 563Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
564
565 * alias.c (init_alias_analysis): Clean up incompatible pointer
566 type warning in bzero.
567 * regmove.c (regmove_optimize): Ditto.
568 * haifa-sched.c (find_rgns): Ditto.
569
570 * haifa-sched.c (print_value): Clean up ptr->int cast
571 warnings.
572
0c82f6bf
FF		 573Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
574
575 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
576 * install.texi (Configurations): Ditto.
577 * config.sub: Ditto.
578
1fed1f51
WL		 579Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
580
581 * Makefile.in (sdbout.o): Depend on insn-config.h.
582
239e68f6
JW		 583Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
584
585 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
586 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
587
267c09ab
JM		 588Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
589
590 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
591 prologue insn, only the first elt is significant.
592 (output_call_frame_info): For exception handling, always use 4-byte
593 fields as specified by the dwarf2 spec.
594 Don't skip trivial FDEs.
595
db7cafb0
JL		 596Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
597
598 * version.c: Bump for snapshot.
599
600Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
601
602 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
603 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
604 when op1_is_pow2.
605
606Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
607
bf520cd9
JL		 608 * final.c (shorten_branches): During first pass, assume worst
609 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
db7cafb0
JL		 610
611 * Makefile.in (distclean): Remove various things left around
612 by running the testsuite.
613
7ed46111
MH		 614Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
615
616 * configure.in (out_file): Emit definition to config.status in order
617 to have a defined value for configure.lang.
618 * configure: Re-built.
619
e41cea70
JJH		 620Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
621
bf520cd9 622 * configure.in: Make symlink to as-new rather than as.new. Similarly
e41cea70
JJH		 623 for ld-new.
624 * configure: Rebuilt.
625
1aeb1f6f
JW		 626Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
627
628 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
629
770a0113
CK		 630Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
631
632 * sparc/sparc.md: Add ultrasparc scheduling support.
633 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
634
f5ffa999
PDM		 635Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
636
637 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
638 as initial value for real_label_map.
639 (copy_for_inline): Likewise.
640
acceac1a
R		 641Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
642
643 * sched.c (update_flow_info) When looking if to set found_split_dest
644 or found_orig_dest, look at all parts of a PARALLEL.
645 * haifa-sched.c (update_flow_info): Likewise.
646
f84271d9
JL		 647Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
648
649 * v850: New directory for v850 port.
650 * v850/lib1funcs.asm: New file.
651 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
652 * ginclude/va-v850.h: New file.
653 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
654 * configure.in (mn10200-*-*): New target.
655 * configure: Rebuilt.
656 * config.sub: Handle v850-elf.
657 * Makefile.in (USER_H): Add va-mn10200.h.
658 * invoke.texi: Document v850 stuff.
659
89cc6098
JW		 660Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
661
04940ba5
JW		 662 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
663 has integer TYPE_{MAX,MIN}_VALUE before using them.
664
89cc6098
JW		 665 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
666 __HPUX_ASM__ versions.
667
c74f7db8
JL		 668Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
669
bf520cd9 670 * install.sh: Delete duplicate install script.
c74f7db8 671
914ec131
SC		 672Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
673
674 * reg-stack.c (subst_stack_regs): Pop the stack register for a
675 computed goto which sets the same stack register.
676
677 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
678 destination are both on the regstack.
679 (subst_stack_regs_pat): Put the destination at the top of the regstack.
680
c1090daa
JW		 681Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
682
d5d1738a
JW		 683 * mips.md (nonlocal_goto_receiver): Define.
684
f4da7881
JW		 685 * profile.c (output_arc_profiler): Check next_insert_after for non
686 NULL before deferencing it.
687
c1090daa
JW		 688 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
689
da594c94
JL		 690Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
691
692 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
693
3e28fe44
MM		 694Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
695
696 * toplev.c (rest_of_compilation): For passes starting with
697 flow_analysis, use print_rtl_with_bb instead of print_rtl.
698
699 * print-rtl.c (print_rtl_single): Print a single rtl value to a
700 file.
701
702 * flow.c (print_rtl_with_bb): Print which insns start and end
703 basic blocks. For the start of a basic block, also print the live
704 information.
705
7053ca72
JW		 706Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
707
417b0fa2
JW		 708 * toplev.c (main): Change #elif to #else/#ifdef
709
7053ca72
JW		 710 * tlink.c: Include ctype.h.
711 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
712
f05a8b25
MM		 713Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
714
715 * bitmap.c: Conditionally include stdlib.h.
bf520cd9 716 (free): Provide a declaration if NEED_DECLARATION_FREE.
f05a8b25 717
02d7a569
JS		 718Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
719
720 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
721
6030b6af
JW		 722Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
723
724 * profile.c (output_arc_profiler): Verify next_insert_after is an
725 INSN before and after skipping a stack pop.
726
04da53bd
R		 727Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
728
729 * final.c (shorten_branches): Don't count the lengths of deleted
730 instructions.
731
780532a4
JL		 732Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
733
734 * version.c: Bump for snapshot.
735
22fa5b8a
MM		 736Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
737
738 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
739 two bitmaps ANDed together.
740 (bitmap_print): Declare.
741
742 * bitmap.c (function_obstack): Don't declare any more.
743 (bitmap_obstack): Obstack for allocating links from.
744 (bitmap_obstack_init): New static to say whether to initialize
745 bitmap_obstack.
746 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
747 (bitmap_release_memory): Free all memory allocated from
748 bitmap_obstack.
749
750 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
751 EXECUTE_IF_AND_IN_BITMAP.
752
57163df0
JW		 753Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
754
fa8b6024
JW		 755 * alias.c (true_dependence): Address with AND can alias scalars.
756 (anti_dependence, output_dependence): Likewise.
757
57163df0
JW		 758 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
759
8aa4e786
JS		 760Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
761
762 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
763 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
764 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
765 definitions. Use -qrtems instead of -mrtems.
766
feb21122
RL		 767Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
768
769 * xm-sco5.h (sys_siglist): Define.
770 (SYS_SIGLIST_DECLARED): Likewise.
771
704af6a1
JL		 772Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
773
774 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
775
127cd405
TG		 776Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
777
778 * except.c (eh_outer_context): Expand masking operation using
779 expand_binop.
780
8cf02b47
JW		 781Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
782
783 * alpha.md (floatdisf2-1): New pattern.
784
49dad301
JL		 785Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
786
068f1cb8
JL		 787 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
788 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
f04e7122 789 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
068f1cb8
JL		 790 * gcc.texi: Note that if you define sys_siglist that you should
791 also define SYS_SIGLIST_DECLARED.
792
49dad301
JL		 793 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
794 are relative to the next instruction, not the current instruction.
795
a1729519
JW		 796Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
797
798 * local-alloc.c (contains_replace_regs): New function.
799 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
800 verify that there is no existing REG_EQUIV note, and add a call to
801 contains_place_regs.
802
290c8b1f
L		 803Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
804
805 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
806 (STARTFILE_SPEC): Always use crtbegin.o%s
807 (ENDFILE_SPEC): Always use crtend.o%s.
808
a6a503ed
JW		 809Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
810
811 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
812 is passed in.
813 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
814 SFmode for 64 bit hosts.
815
a94729bc
PH		 816Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
817
818 * fixincludes: Permits spaces between # and define. Discard C++
819 comments in sys/pci.h on HP/UX 10.20.
820
c9e03727
JL		 821Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
822
823 * version.c: Bump for snapshot.
824
2eddfed1
JL		 825 * pa.c (restore_unscaled_index_insn_codes): New function.
826 (record_unscaled_index_insn_codes): Likewise.
827 (output_function_prologue): Call restore_unscaled_index_insn_codes.
828 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
829 (pa_reorg): Call record_unscaled_index_insn_codes.
830
c9e03727
JL		 831 * haifa-sched.c (move_insn): Handle notes correctly for insns
832 with SCHED_GROUP_P set.
833
a5d6a95b
L		 834Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
835
836 * alpha/xm-linux.h (USE_BFD): Undef before define.
837
bc4ddc77
JW		 838Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
839
840 * cse.c (cse_insn): Don't record BLKmode values.
841
f3e0ca6c
SW		 842Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
843
844 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
845
e3512ac2
JL		 846Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
847
a63d08e6
JL		 848 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
849 * collect2.c (sys_errlist): Likewise.
850 * cpplib.c (sys_errlist): Likewise.
851 * gcc.c (sys_errlist): Likewise.
852 * protoize (sys_errlist): Likewise.
853 * configure.in: Check for strerror.
854 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
855 * xm-gnu.h (HAVE_STRERROR): Likewise.
856 * xm-linux.h (HAVE_STRERROR): Likewise.
857 * xm-netbsd.h (HAVE_STRERROR): Likewise.
858 * xm-bsd386.h (HAVE_STRERROR): Likewise.
859 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
860 * xm-dos.h (HAVE_STRERROR): Likewise.
861 * xm-mingw32.h (HAVE_STRERROR): Likewise.
862 * xm-pa.h (HAVE_STRERROR): Likewise.
863 * xm-papro.h (HAVE_STRERROR): Likewise.
864 * xm-sysv4.h (HAVE_STRERROR): Likewise.
865 * configure, config.in: Rebuilt.
866
db814993
JL		 867 * Makefile.in: Add several missing "else true" clauses.
868
e3512ac2
JL		 869 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
870 * mips-tfile.c: Likewise.
871 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
872 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
873 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
874 * configure.in: Check for sys_siglist declaration.
875 * configure, config.in: Rebuilt.
876
5d84b57e
JS		 877Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
878
879 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
880 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
881 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
882 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
883 * rs6000/sysv4.h (extra_subtarget_switches): Added new
884 macro EXTRA_SUBTARGET_SWITCHES.
885 * configure.in (sh*-*-rtems*): New target.
886 * sh/rtems.h: New file.
887 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
888 * configure: Rebuilt.
889
2599dcc7
JW		 890Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
891
892 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
893
3b7e5ef4
DE		 894Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
895
896 * rs6000.md: Make DF fused-add operations pay attention to
897 -mno-fused-add.
898
5cd5f4a7
JW		 899Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
900
901 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
902
63e7fe9b
JL		 903Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
904
905 * pa.md (reload_peepholes): Make sure operand is a REG before
906 examining REGNO. Allow general registers too.
907
eb7b11fd
JW		 908Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
909
910 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
911
c760091a
PT		 912Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
913
5cd5f4a7 914 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
c760091a
PT		 915 to reallocate abbrev_die_table.
916
57583338
JW		 917Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
918
919 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
920
eae4b970
AS		 9211997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
922
4f91a0f8
AS		 923 * Makefile.in (config.status): Depend on version.c
924
eae4b970
AS		 925 * expr.h (insn_gen_function): Reenable prototype.
926
927 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
928 first parameter.
929
00fc09e1
JW		 930Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
931
932 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
933
2601ebca
JL		 934Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
935
936 * version.c: Bump for latest snapshot.
937
938 * bc-optab.c: Conditionally include stdlib.h.
939 (free): Provide a declaration if NEED_DECLARATION_FREE.
940 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
941 * rtl.h (free): Remove declaration.
942 * tree.h (free): Remvoe declaration.
943
944 * configure: Rebuilt.
945
e5eb27e5
JL		 946Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
947
948 * flags.h (flag_move_all_movables): Declare.
949 (flag_reduce_all_givs): Likewise.
950 * loop.c (move_movables): Handle flag_move_all_movables.
951 (strength_reduce): Handle flag_reduce_all_givs.
952 * toplev.c (flag_move_all_movables): Define.
953 (flag_reduce_all_givs): Likewise.
954 (f_options): Add -fmove-all-movables and -freduce-all-givs.
955 * invoke.texi: Document new options, including alias stuff that
956 wasn't included last time.
957
d995a6dc
BM		 958Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
959
960 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
961 * t-mn10200: Ditto.
962 * t-vxsparc: Ditto.
963 * t-vxworks68: Ditto.
964 * t-vxworks960: Ditto.
965 * t-vx29k: Ditto.
966
ba64ca33
RH		 967Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
968
969 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
970 if not already defined, and USE_C_ALLOCA not defined.
971
ca20876d
JW		 972Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
973
7818d6fc
JW		 974 * config.guess: Replace with script that uses ../config.guess.
975
ca20876d
JW		 976 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
977 if USE_GNULIBC_1 is not defined.
978
704a6306
RH		 979Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
980
981 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
982 * config.guess: Recognize alpha-linux-gnulibc1.
983 * configure.in (alpha-*-linux-gnulibc1): New target.
984 (alpha-*-linux-gnu*): Don't build crtbegin/end.
985
67f68fd2
JW		 986Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
987
988 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
989 last change.
990
88016fb7
DE		 991Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
992
993 * loop.c (combine_movables): Earlier insns don't match later ones.
994
bba17b29
L		 995Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
996
997 * config/linux.h (CC1_SPEC): Define it only if not defined.
998
999 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
1000 <linux.h>
1001
1002 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
1003 USE_GNULIBC_1 is not defined.
1004
33d2808b 1005 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
bba17b29
L		 1006
1007 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
1008 as 1 if USE_GNULIBC_1 is not defined.
1009
ed4044e0
JL		 1010Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
1011
f345de42
JL		 1012 * reorg.c (dbr_schedule): Allow current_function_return_rtx
1013 to be something other than a REG.
1014 * function.c (expand_function_end): Fix current_function_return_rtx
1015 if it was a pseudo.
1016
ed4044e0
JL		 1017 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
1018 * x-netbsd: Likewise
1019 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1020 (INSTALL_HEADERS): Delete.
1021 * x-dguxbcs: Likewise.
1022 * x-hp3bsd44: Likewise
1023 * x-pa: Likewise.
1024
47d36400
BS		 1025Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1026
1027 * i386.md (pop): pop increments the stack pointer.
1028 (prologue_set_stack_ptr): New pattern.
1029 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1030 instead of subsi3.
1031
fc79eafe
JW		 1032Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
1033
1034 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1035 address where an offsettable address is required.
1036
c5da853f
MH		 1037Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
1038
1039 * loop.c (check_final_value): Don't miss a biv increment in a
1040 parallel.
1041
d4ef15f2
JW		 1042Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
1043
1044 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1045 TYPE_DECL_IS_STUB instead of DECL_NAME.
1046
10549cbd
JW		 1047Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1048
1049 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1050
1051Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
1052
1053 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1054
484df988
JL		 1055Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
1056
1057 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1058 (find_post_sched_live): Likewise.
1059
1060 * haifa-sched.c (schedule_block): Remove old code to get arguments
1061 from hard regs into pseudos early.
1062
39dfb55a
JL		 1063Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
1064
1065 * version.c: Bump for new snapshot.
1066
1067 * local-alloc.c (update_equiv_regs): All the target to reject
1068 promotion of some REG_EQUAL to REG_EQUIV notes.
1069 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1070
1071 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1072 secondary reloads.
1073
1074 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
1075 store of the argument registers.
1076
1077Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
1078
1079 * fold-const.c (multiple_of_p): New function.
1080 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
1081
d78778eb
JL		 1082Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
1083
1084 * expr.h (insn_gen_function): Temporarily remove prototype.
1085
feb9ea1a
JW		 1086Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
1087
1088 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
1089 filenames. Use sed to extract base filename for install.
1090
b6ffe602
JC		 1091Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
1092
1093 * unroll.c (find_splittable_givs): Only share if two givs have the
1094 same add and multiply values.
1095
2ebfd230
JW		 1096Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
1097
1098 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
1099 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
1100
251ffdee
JL		 1101Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
1102
1103 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
1104 around branch tables.
1105 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
1106 and .end_brtab directives if TARGET_GAS.
1107
19372aa1
JW		 1108Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
1109
27314274
JW		 1110 * alias.c (true_dependence): Pass x_addr not x to varies.
1111
19372aa1
JW		 1112 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1113 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1114 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1115 declarations.
1116 * config.in, configure: Regenerate.
1117
2a2c8203
JC		 1118Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
1119
1120 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1121 LO_SUM.
1122 (record_set): Handle LO_SUM like PLUS.
1123 (init_alias_analysis): When following chains of base addresses,
1124 do not stop on reaching a hard register.
1125
d80357b7
JL		 1126Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
1127
1128 * version.c: Bump for new snapshot.
1129
b4f32d7b
JW		 1130Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
1131
1132 * alpha.h (ARCH_ASM_FILE_START): Define.
1133 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1134 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1135
ca363bb6
JL		 1136Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
1137
1138 * Makefile.in (install-common): Put gcov comment at start of line.
1139
7557aa98
JL		 1140Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
1141
1142 * alias.c (init_alias_analysis): When simplifying the reg_base_value
1143 array, simplify entries for hard registers too.
1144
c34e3ae4
DL		 1145Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
1146
1147 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1148 list.
1149
e3eef942
JW		 1150Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
1151
1152 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1153 block_stack before dereferencing it.
1154
1155Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
246853b9
MM		 1156
1157 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1158
04f41951
JM		 1159Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
1160
1161 * cplus-dem.c: Add 'extern' to prepends_underscore.
1162
e933cbe0
JL		 1163Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
1164
62d65906
JL		 1165 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1166 (get_issue_rate): Delete.
1167 * pa.h (ISSUE_RATE): Define.
1168
2da05a5b
JL		 1169 * configure.in: Turn on haifa by default for the PA.
1170 * configure: Rebuilt.
1171 * pa.c (override_options): Accept -mschedule=7200 option.
1172 (pa_adjust_cost): No longer need to scale costs for newer
1173 processors.
1174 * pa.h (enum processor_type): Add PROCESSOR_7200.
1175 * pa.md: Revamp scheduling parameters to work better with
1176 haifa. Add scheduling parameters for the 7200.
1177
4f64eaca
JL		 1178 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1179 insns too.
1180 (schedule_block): When adjusting basic_block_{head,end}, account
1181 for movement of SCHED_GROUP_P insns too.
1182
1183 * haifa-sched.c (debug_dependencies): Fix thinko.
1184
e933cbe0
JL		 1185 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1186 (site.exp, check, check-g++, check-gcc): New targets.
1187
4f64eaca 1188 * haifa-sched.c: Make lots of variables static.
61822835 1189
e9576d2c
L		 1190Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1191
1192 * expr.h, real.h: Finish prototyping.
1193
61822835
JL		 1194Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
1195
1196 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1197 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1198 * reload1.c: Undo bugfix from Aug 11.
1199
f24b370a
MM		 1200Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
1201
1202 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1203 quotes around the name.
1204 * configure: Regenerate.
1205
1c4c5851
JW		 1206Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
1207
1208 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1209
71abb567
MH		 1210Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
1211
1212 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1213 to sub-makes to avoid building more passes than the user might have
1214 requested on the command line.
1215
6042434a
DL		 1216Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
1217
1218 * configure.in: Expurgate `broken_install' (install is
1219 autoconfed).
1220
1221 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1222 relevant).
1223
38ea060f
JL		 1224Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
1225
1226 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1227 functions and declarations.
1228 (analyze_loop_iterations): Use condjump_p.
1229 (insert_bct): Likewise. Use exact_log2.
1230
f187056f
JL		 1231Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
1232
1233 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1234 (schedule_region): Likewise.
1235 (schedule_insns): Likewise.
1236
1237 * PROJECTS: Update with Haifa stuff.
1238
9af06254
JL		 1239Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
1240
1241 * version.c: Change the version string to look like:
11c21791 1242 egcs-2.90.00 970814 (gcc2-970802 experimental).
9af06254 1243
0945e937
JL		 1244 * loop.c (is_conditional_branch): Make definition match declaration.
1245
9af06254
JL		 1246 * gcc.c: Take out experimental snapshot warning message.
1247
ebc25a17
MM		 1248Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
1249
1250 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1251 print out the names of the notes. Print out the name of the insn
1252 that is not a note, and not an {,CALL_,JUMP_}INSN.
1253
610ce97e
JM		 1254Wed Aug 13 17:32:38 1997 Jason Merrill <jason@yorick.cygnus.com>
1255
1256 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1257 again for the slot after we give it RTL.
1258
992d1248
DE		 1259Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
1260
1261 * configure.in (haifa configury): Fix typo.
1262 * configure: Regenerate.
1263
7bb6fbd1
JL		 1264Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
1265
1266 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1267
1268 * gcc.info*: Rebuilt.
1269
1270 * COPYING.g77, README.g77: New files.
1271 * real.c (ereal_unto_float, ereal_unto_double): New functions.
1272 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1273 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1274
8c660648
JL		 1275Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
1276
1277 * Integrate Haifa instruction scheduler.
1278 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
1279 to sched with $(SCHED_CFLAGS.
1280 * configure.in: Handle --enable-haifa.
1281 * configure: Rebuilt.
1282 * flags.h: Add new flags for haifa instruction scheduler.
1283 * genattrtab.c (expand_units): For haifa, don't subtract one
1284 when computing blockage.
1285 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1286 (flag_schedule_speculative): Ditto.
1287 (flag_schedule_speculative_load): Ditto.
1288 (flag_schedule_speculative_load_dangerous): Ditto.
1289 (flag_schedule_reverse_before_reload): Ditto.
1290 (flag_schedule_reverse_after_reload): Ditto.
1291 (flag_branch_on_count_reg): Ditto.
1292 (f_options): Add Haifa switches.
1293 (main): Turn off some Haifa options if appropriate macro is
1294 defined. Process Haifa switches.
1295 * unroll.c (iteration_info): No longer static, since Haifa
1296 scheduler uses it.
1297 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1298 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1299 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1300 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1301 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1302 storage for the Haifa scheduler.
1303 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1304 LABEL_NEXTREF.
1305 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1306 are defined, call analyze_loop_iterations and insert_bct to use
1307 countdown loops.
1308 (record_giv): Refine test for jumps out of loops if HAIFA is
1309 defined.
1310 (analyze_loop_iterations): New function to identify if we can use
1311 a countdown loop.
1312 (insert_bct): Insert countdown loop.
1313 (instrument_loop_bct): Low level code to insert countdown loop.
1314 (loop_number): Calculate UID of loop.
1315 (indirect_jump_in_function_p): Return true if an indirect jump is
1316 in the function.
1317 (is_power_of_2): Return true if value is a power of 2.
1318 (is_conditional_branch): Return true if insn is a conditional
1319 jump.
1320 (fix_bct_param): Process -fbct-{min,max}-N switches.
1321 (check_bct_param): Return true if loop should be instrumented.
1322 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1323 (loop_optimize): Initialize.
1324 (get_condition_for_loop): Ditto.
1325 * loop.c (strength_reduce): Inside of code that uses #ifdef
1326 HAVE_decrement_and_branch_on_count code, test it to make sure the
1327 condition is true.
1328 (instrument_loop_bct): Ditto.
1329 * haifa-sched.c: New file.
1330
1331
1332 * Integrate regmove pass.
1333 * Makefile.in (OBJS): Add regmove.o
1334 (regmove.o): Add dependencies.
1335 * flow.c (find_use_as_address): No longer static.
1336 * rtl.h (find_use_as_address): Declare.
1337 * toplev.c (regmove_dump, flag_regmove): Define.
1338 (f_options): Add -fregmove.
1339 (regmove_dump_file, regmove_time): Define.
1340 (fatal_insn): Close the regmove dump file.
1341 (compile_file): Initialize regmove_time; open/close the regmove dump
1342 file as needed. Print regmove time as needed.
1343 (rest_of_compilation): Run regmove pass if requested, dump
1344 RTL after regmove if requested.
1345 (main): If -O2 or more, turn on regmove. Handle dump switches.
1346 * regmove.c: New file.
1347
aa32d841
JL		 1348Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
1349
1350 * Integrate tlink patch from jason@cygnus.com
1351 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1352 (process_command): Increment n_switches for them. Don't discard
1353 their args. Validate them.
1354 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1355 From Rohan Lenard.
1356 (process_command): Set include_prefixes from COMPILER_PATH.
1357 (main): Set COLLECT_GCC_OPTIONS sooner.
1358 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1359 * tlink.c, hash.c, hash.h: New files.
1360 * Makefile.in (USE_COLLECT2): Always use collect2.
1361 (collect2): Depend on and link in hash.o and tlink.o.
1362 (tlink.o, hash.o): Add dependencies.
1363
5fa39bfe
JL		 1364Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
1365
9ae8ffe7
JL		 1366 * Integrate alias analysis changes from jfc@mit.edu
1367 * Makefile.in (OBJS): Add alias.o
1368 (alias.o): Add dependencies.
1369 * alias.c: New file.
1370 * sched.c: Remove alias analysis code. It lives in alias.c now.
9ae8ffe7 1371 (sched_analyze_2): Add new arguments to true_dependence.
9ae8ffe7
JL		 1372 (schedule_insns): Always call init_alias_analysis.
1373 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1374 mark return value from such functions as a pointer and keep track of
1375 them for alias analysis. If a return value from a function is a
1376 pointer, mark it as such.
1377 * combine.c (distribute_notes): Handle REG_NOALIAS.
1378 * cse.c (struct write_data): Delete. No longer needed.
1379 (invalidate): Don't call set_nonvarying_address_components anymore.
1380 Use true_dependence to decide if an entry should be removed from
1381 the hash table.
1382 (invalidate_memory): Remove WRITES argument, simplify appropriately.
1383 Fix all callers.
1384 (note_mem_written): Similarly for WRITE_PTR argument.
1385 (invalidate_from_clobbers): Similarly for W argument.
1386 (invalidate_for_call): Remove memory elements from the hash table.
1387 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1388 (cse_rtx_varies_p): New function. Derived from old
1389 cse_rtx_addr_varies_p.
1390 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1391 Don't call note_mem_written anymore. Stack pushes invalidate the stack
1392 pointer if PUSH_ROUNDING is defined. No longer need to call
1393 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1394 (skipped_writes_memory): Remove variable.
1395 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1396 (invalidate_skipped_block): Simplify for new alias analysis code.
1397 (cse_set_around_loop): Likewise.
1398 (cse_main): Call init_alias_analysis.
1399 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1400 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1401 (f_options): Add new alias checking arguments.
1402 (main): Set flag_alias_check when optimizing.
1403 * local_alloc (validate_equiv_mem_from_store): Add new arguments
1404 to true_dependence.
1405 (memref_referenced_p): Likewise.
1406 * loop.c (NUM_STORES): Increase to 30.
1407 (prescan_loop): Only non-constant calls set unknown_address_altered.
1408 (invariant_p): Add new arguments to true_dependence.
1409 (record_giv): Initialize unrolled and shared fields.
1410 (emit_iv_add_mult): Call record_base_value as needed.
1411 * loop.h (struct induction): Add unrolled and shared fields.
1412 * unroll.c (unroll_loop): Call record_base_value as needed.
1413 (copy_loop_body): Likewise.
1414 (final_biv_value): Likewise.
1415 (final_giv_value): Likewise.
1416 (find_splittable_regs): Likewise. Only create one new pseudo
1417 if we have multiple address GIVs that were combined with the same
1418 dst_reg GIV. Note when a new register is created due to unrolling.
1419 * rtl.c (reg_note_name): Add REG_NOALIAS.
1420 * rtl.h (enum reg_note): Similarly.
1421 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1422 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1423 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1424 (true_dependence, read_dependence, anti_dependence): Likewise.
1425 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1426 (mark_user_reg, mark_reg_pointer): Likewise.
1427
1428
1429 * Integrate reload bugfix from Wilon which enables the PA port
5fa39bfe
JL		 1430 to bootstrap again.
1431 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1432 OPERAND_ADDRESS when computing how many registers an insn needs.
1433 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1434 conflict.
1435 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1436 OPADDR_ADDR reload.
1437 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1438 in reload_reg_use_in_op_addr do not reach the end.
1439 do not reach the end.
1440 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1441 RELOAD_FOR_OPERAND_ADDRESS.
1442
1443Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
1444
2dcfcb56 1445 * egcs project officially starts.
861bb6c1 1446
GNU Compiler Collection
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