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rtlanal.c (jmp_uses_reg_or_mem): Fix typo in last change.
[thirdparty/gcc.git] / gcc / ChangeLog
CommitLineData
8d7532d9
JL		 1Tue Sep 23 00:59:54 1997 Jeffrey A Law (law@cygnus.com)
2
3 * rtlanal.c (jmp_uses_reg_or_mem): Fix typo in last change.
4
7019d00e
L		 5Tue Sep 23 00:42:44 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
6
7 * loop.c (indirect_jump_in_function_p): Return 0
8 by default.
9
b9dfb357
JL		 10Tue Sep 23 00:33:55 1997 Jeffrey A Law (law@cygnus.com)
11
12 * rs6000/xm-rs6000.h: Fix thinko in last change.
13 * rs6000/xm-sysv4.h: Likewise.
14
4b7e467b
JW		 15Mon Sep 22 19:33:53 1997 Jim Wilson <wilson@cygnus.com>
16
17 * mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.
18
8c8e6faa
JL		 19Mon Sep 22 14:41:00 1997 Jeffrey A Law (law@cygnus.com)
20
21 * reg-stack.c (find_blocks): Fix thinko in last change.
22
078e983e
AS		 231997-09-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
24
25 * m68k.c (output_function_prologue): Add dwarf2 support.
26
27 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM,
28 INCOMING_FRAME_SP_OFFSET): New definitions.
29
d7027667
DM		 30Mon Sep 22 11:36:42 1997 David S. Miller <davem@tanya.rutgers.edu>
31
9524f769
DM		 32 * combine.c (try_combine): Use NULL_RTX instead of '0' where
33 appropriate in calls to gen_rtx().
34 * cse.c (cse_main): Likewise.
35 * emit-rtl.c (gen_label_rtx): Likewise.
36 * expr.c (init_expr_once): Likewise.
37 * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
38 sched_analyze, init_rgn_data_dependences,
39 compute_block_backward_dependences): Likewise.
40 * sched.c (schedule_insns): Likewise.
41 * varasm.c (immed_double_const): Likewise.
42
d7027667
DM		 43 * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
44 SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
45
fbf8b71c
KJ		 46Mon Sep 22 11:21:33 1997 J. Kean Johnston <jkj@sco.com>
47
48 * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
49 (MULTILIB_DEFAULTS): Define.
50 (ASM_SPEC, CPP_SPEC): Handle -mcoff.
51 (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
52 (LIBGCC_SPEC): Likewise.
53 (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
54 (SUBTARGET_SWITCHES): Add -mcoff and -melf.
55 * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
56 (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
57 (EXTRA_PARTS, TAROUTOPTS): Delete.
58 (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
59 (MULTILIB_OPTIONS): Define.
60 (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
61 (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
62
c14a951f
JL		 63Mon Sep 22 02:10:43 1997 Jeffrey A Law (law@cygnus.com)
64
65 * version.c: Bump for snapshot.
66
7014927a
JL		 67Sun Sep 21 17:45:45 1997 Jeffrey A Law (law@cygnus.com)
68
37aa45a2
JL		 69 * loop.c (loop_number): Delete function. Change all references
70 to use uid_loop_num array.
71 * loop.h (loop_number): Delete declaration.
72 * unroll.c (unroll_loop): Change "loop_number" references to
73 use uid_loop_num instead.
74
b47404d1
JL		 75 * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
76 conditional.
77 (loop_unroll_iter): Remove unused variable and all references.
78 (loop_optimize): Always allocate and clear space for loop_unroll_factor.
79 (insert_bct): Fix minor formatting problems.
80 * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
81 (loop_unroll_iter): Removed unused decl.
82 * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
83 Always record the unrolling factor.
84
cb3bb2a7
JL		 85 * cse.c (simplify_relational_operation): Set h0u just like h0s.
86 Similarly for h1u and h1s.
87
d5ff3a2e 88 * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
2a1777af
JL		 89 (find_basic_blocks): Use computed_jump_p to determine if a
90 particular JUMP_INSN is a computed jump.
91 * reg-stack.c (find_blocks): Use computed_jump_p to determine
92 if a particular JUMP_INSN is a computed jump.
93 * rtlanal.c (jmp_uses_reg_or_mem): New function.
94 (computed_jump_p): Likewise.
95 * rtl.h (computed_jump_p): Declare.
96 * genattrtab.c (pc_rtx): Define and initialize.
97 * loop.c (loop_optimize): Always determine if the current
98 function has a computed jump.
99 (indirect_jump_in_function_p): Use computed_jump_p to determine
100 if a particular JUMP_INSN is a computed jump.
101
7014927a
JL		 102 * loop.c (fix_bct_param): Delete unused function.
103 (check_bct_param): Likewise.
104
6d53d7c2
JM		 105Sat Sep 20 16:22:06 1997 Jason Merrill <jason@yorick.cygnus.com>
106
107 * frame.c (__deregister_frame): Check properly for initialized object.
108
71e4fbe6
L		 109Fri Sep 19 20:51:03 199 H.J. Lu (hjl@gnu.ai.mit.edu)
110
111 * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
112
272299b9
R		 113Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
114
cc5e1642
R		 115 * jump.c (thread_jumps): check can_reverse_comparison_p before
116 threading a reversed-condition jump.
117
272299b9
R		 118 * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
119 * haifa-sched.c (update_flow_info): Likewise.
120
18511014
JL		 121Thu Sep 18 21:13:40 1997 Jeffrey A Law (law@cygnus.com)
122
e6493727
JL		 123 * Makefile.in (BOOT_CFLAGS): Use -O2.
124
1e467e19
JL		 125 * configure.in (strtoul, bsearch): Have autoconf check for these
126 functions.
127 * configure, config.in: Rebuilt.
128
18511014
JL		 129 * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
130 * mips/mips.h (alloca): Likewise.
131 * rs6000/xm-rs6000.h (alloca): Likewise.
132 * rs6000/xm-sysv4.h: Likewise.
133
6020d360
JM		 134Thu Sep 18 14:22:22 1997 Jason Merrill <jason@yorick.cygnus.com>
135
136 * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
137 * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
138 (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
139
140 * except.c (end_eh_unwinder): Subtract 1 from return address.
141 * libgcc2.c (__throw): Likewise.
142 (find_exception_handler): Don't change PC here. Compare end with >.
143
b24bcfb3
NC		 144Thu Sep 18 10:43:07 1997 Nick Clifton <nickc@cygnus.com>
145
146 * v850.c (compute_register_save_size): Correct register
147 number.
148 * v850.md (save_interrupt, return_interrupt): Correct
149 register number.
150 * v850/lib1funcs.asm (save_interrupt): Correct register number.
151 (return_interrupt): Use stack pointer, not element pointer.
152
93cf819d
BK		 1531997-09-18 Brendan Kehoe <brendan@lisa.cygnus.com>
154
155 * configure.in, configure: Make sure to create the stage* and include
156 symbolic links in each subdirectory.
157
f0501149
JL		 158Thu Sep 18 01:47:06 1997 Jeffrey A Law (law@cygnus.com)
159
160 * pa.md (reload_peepholes): Don't allow addresses with side
161 effects for the memory operand.
162
4f870c04
JM		 163Wed Sep 17 18:19:53 1997 Jason Merrill <jason@yorick.cygnus.com>
164
165 * libgcc2.c (find_exception_handler): Subtract one from our PC when
166 looking for a handler, to avoid hitting the beginning of the next
167 region.
168
169 * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
170
4eb66248
JL		 171Wed Sep 17 18:33:59 1997 Jeffrey A Law (law@cygnus.com)
172
173 * mips/abi64.h (LONG_MAX_SPEC): Define.
174 * mips.h (LONG_MAX_SPEC): Define.
175 (CPP_SPEC): Include long_max_spec.
176 (EXTRA_SPECS): Include long_max_spec.
177
44158507
JL		 178Wed Sep 17 14:11:38 1997 Jeffrey A Law (law@cygnus.com)
179
180 * v850.c (construct_save_jarl): Fix thinko in last change.
181
bf520cd9
JL		 182Wed Sep 17 09:53:07 1997 Jeffrey A Law (law@cygnus.com)
183
184 * version.c: Bump for snapshot.
185
255fe733
JM		 186Tue Sep 16 14:22:36 1997 Jason Merrill <jason@yorick.cygnus.com>
187
c0727e2a
JM		 188 * libgcc2.c (find_exception_handler): Not found is -1.
189
255fe733
JM		 190 * integrate.c (expand_inline_function): Move expand_start_bindings
191 after expanding the arguments.
192
21002281
JW		 193Tue Sep 16 11:13:46 1997 Jim Wilson <wilson@cygnus.com>
194
195 * expr.c (expand_expr): Remove previous incorrect change.
196 If target and slot has no DECL_RTL, then call mark_addressable
197 again for the slot after we give it RTL.
198
e693cc28 199Tue Sep 16 09:18:52 1997 Jason Merrill (jason@cygnus.com)
f633220c 200
e693cc28
UD		 201 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
202 again for the slot after we give it RTL.
f633220c 203
145870b5
NC		 204Tue Sep 16 00:13:20 1997 Nick Clifton <nickc@cygnus.com>
205
84e75068 206 * v850.c (register_is_ok_for_epilogue,
145870b5
NC		 207 pattern_is_ok_for_epilogue, construct_restore_jr,
208 pattern_is_ok_for_prologue, construct_save_jarl): New functions.
209
84e75068 210 * v850.h (pattern_is_ok_for_prologue,
145870b5
NC		 211 pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
212 predicates.
213
84e75068 214 * v850.md: Replace prologue and epilogue patterns with a
145870b5
NC		 215 match_parallel pattern.
216
76143254
JL		 217Mon Sep 15 22:53:01 1997 Jeffrey A Law (law@cygnus.com)
218
219 * aclocal.m4: Add replacement for AC_PROG_INSTALL.
220 * configure.in: Use EGCS_PROG_INSTALL.
221
4401bf24
JL		 222Mon Sep 15 22:40:55 1997 Jim Wilson (wilson@cygnus.com)
223
224 * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
225 extern inline function.
226
227Mon Sep 15 22:40:55 1997 Richard Henderson (rth@cygnus.com)
228
229 * dwarf2out.c (reg_loc_descriptor): Fix prototype.
230 (concat_loc_descriptor): New function.
231 (loc_descriptor): Call it.
232 (add_AT_location_description): Also elide the descriptor if both
233 halves of a CONCAT are pseudos.
234 (add_location_or_const_value_attribute): Recognize CONCAT too.
235
0d24ff5d
RH		 236Mon Sep 15 15:24:00 1997 Richard Henderson <rth@cygnus.com>
237
4bb43724
RH		 238 * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
239
0d24ff5d
RH		 240 * alpha/alpha.c (output_prolog): New variable sa_reg. Use it for
241 out-or-range reg_offset.
242 (output_epilog): Likewise.
243
05ef8897
JL		 244Mon Sep 15 15:39:26 1997 Jeffrey A Law (law@cygnus.com)
245
246 * cse.c (simplify_relational_operation): If MODE specifies a
247 mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
248 is derived from the sign bit of the low word.
249
ca55abae
JM		 250Mon Sep 15 11:43:38 1997 Jason Merrill <jason@yorick.cygnus.com>
251
252 Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
253
254 * dwarf2.h: Add DW_CFA_GNU_args_size.
255 * frame.c (execute_cfa_insn): Likewise.
256 * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
257 (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
258 (dwarf2out_frame_debug): If this isn't a prologue or epilogue
259 insn, hand it off to dwarf2out_stack_adjust.
260 (dwarf2out_begin_prologue): Initialize args_size.
261 * frame.h (struct frame_state): Add args_size.
262 * libgcc2.c (__throw): Use args_size.
263 * final.c (final_scan_insn): If we push args, hand off all insns
264 to dwarf2out_frame_debug.
265 * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
266
267 * dwarf2out.c dwarf2out_frame_debug): Fix typo.
268 Handle epilogue restore of SP from FP.
269 * emit-rtl.c (gen_sequence): Still generate a sequence if the
270 lone insn has RTX_FRAME_RELATED_P set.
271
272 * frame.c (extract_cie_info): Handle "e" augmentation.
273 * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
274 absence of UNALIGNED_*_ASM_OP.
275 (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
276 (output_call_frame_info): Use "e" instead of "z" for augmentation.
277 Don't emit augmentation fields length.
278 (dwarf2out_do_frame): Move outside of #ifdefs.
279 * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
280 opcodes.
281
282 * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
283 * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
284 * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
285 * sparc/sun4gas.h: New file.
286 * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
287
288 * collect2.c (write_c_file_stat, write_c_file_glob): Declare
289 __register_frame_table and __deregister_frame.
290
1d77fa53
BK		 2911997-09-15 Brendan Kehoe <brendan@cygnus.com>
292
293 * except.c (find_exception_handler_labels): Use xmalloc instead of
294 alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
295 in some cases.
296
8be52aaa
JL		 297Sun Sep 14 21:01:23 1997 Jeffrey A Law (law@cygnus.com)
298
299 * Makefile.in: Various changes to build info files
300 in the object tree rather than the source tree.
301
a3ee3246
JL		 302Sun Sep 14 12:24:30 1997 Jeffrey A Law (law@cygnus.com)
303
304 * fixinc.math: New file to fix math.h on some systems.
305 * configure.in (freebsd, netbsd): Use fixinc.math on these
306 systems.
307 * configure: Rebuilt.
308
124da275
JL		 309Sun Sep 14 11:11:05 1997 Jeffrey A Law (law@cygnus.com)
310
311 * regmove.c (regmove_optimize): If we end up moving the
312 original insn due to lifetime overlaps, make sure to move
313 REG_NOTES too.
314
fca9d4b0
MH		 315Sat Sep 13 15:51:11 1997 Manfred Hollstein <manfred@s-direktnet.de>
316
317 * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
318
326ee7a3
JL		 319Sat Sep 13 12:57:26 1997 Jeffrey A Law (law@cygnus.com)
320
321 * haifa-sched.c (add_branch_dependences): Make each insn in
322 a SCHED_GROUP_P block explicitly depend on the previous insn.
323
ca55abae
JM		 324Fri Sep 12 13:49:58 1997 Jason Merrill <jason@yorick.cygnus.com>
325
326 * except.h: Prototype dwarf2 hooks.
327 * expr.c: Adjust.
328
5188d2b2
JW		 329Thu Sep 11 17:43:55 1997 Jim Wilson <wilson@cygnus.com>
330
331 * configure.in (native_prefix): Delete.
332 (mips-dec-netbsd): Don't set prefix.
333 (*linux*): Don't set prefix.
334
2e384318
FF		 335Thu Sep 11 15:48:32 1997 Fred Fish <fnf@ninemoons.com>
336
70988851
FF		 337 * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
338 defined. If not defined, include <sys/varargs.h> if
339 HAVE_SYS_VARARGS_H is defined.
340 * configure.in: Test for varargs.h and sys/varargs.h.
341 * configure: Regenerate with autoconf.
342 * config.in: Regenerate with autoheader.
343
2e384318
FF		 344 * cpplib.c (quote_string): Cast first arg of sprintf call
345 from "unsigned char *" to "char *".
346 (output_line_command): Ditto.
347 (macroexpand): Ditto.
348 (do_line): Cast atoi arg from "unsigned char *" to "char *".
349
3fb2f401
JL		 350Wed Sep 10 21:37:30 1997 Jeffrey A Law (law@cygnus.com)
351
f2e4e16f
JL		 352 * version.c: Bump for snapshot.
353
3fb2f401
JL		 354 * Makefile.in (compare): Exit with nonzero status if there
355 are comparison failures. Note which files failed the
356 comparison test in .bad_compare.
357
d26cb668
L		 358Wed Sep 10 17:05:46 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
359
360 * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
361
ac64120e
JW		 362Wed Sep 10 16:37:28 1997 Fred Fish <fnf@ninemoons.com>
363
364 * Makefile.in (LN, LN_S): New macros, use where appropriate.
365 * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
366 * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
367 * configure: Regenerated.
368
369Thu Sep 11 11:09:43 1997 Jeffrey A Law (law@cygnus.com)
370
371 * loop.c (strength_reduce): Fix typo.
372
db87ec0b
JW		 373Wed Sep 10 16:01:15 1997 Jim Wilson <wilson@cygnus.com>
374
375 * m88k/m88k.c (struct option): Rename to struct options.
376 * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
377 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
378 * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
379 __DOLPHIN__ or sysV88.
380
04395f96
JW		 381Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
382
383 * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
384 create new subreg.
385
becdcf6d
JL		 386Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
387
388 * config.sub: Accept 'amigados' for backward compatability.
389
04395f96 390Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
3979dfb8
JW		 391
392 * Makefile.in (testsuite/site.exp): New target.
393 (check-gcc, check-g++): Depend on testsuite/site.exp.
394 Don't stop for failure.
395
ca55abae
JM		 396Wed Sep 10 12:59:57 1997 Jason Merrill <jason@yorick.cygnus.com>
397
398 * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
399 if DWARF2_UNWIND_INFO.
400
401Wed Sep 10 11:49:20 1997 Jason Merrill <jason@yorick.cygnus.com>
402
403 Add support for exception handling using DWARF 2 frame unwind info.
404 Currently works on SPARC and MIPS, and almost on x86.
405
406 * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
407 next_stack_level, in_reg_window): Helper fns.
408 (__throw): Implement for DWARF2_UNWIND_INFO.
409
410 * expr.c (expand_builtin): Handle builtins used by __throw.
411 * tree.h (enum built_in_function): Add builtins used by __throw.
412 * c-decl.c (init_decl_processing): Declare builtins used by __throw.
413 * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
414 * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
415 (expand_builtin_extract_return_addr): Likewise.
416 (expand_builtin_frob_return_addr): Likewise.
417 (expand_builtin_set_return_addr_reg): Likewise.
418 (expand_builtin_eh_stub): Likewise.
419 (expand_builtin_set_eh_regs): Likewise.
420 (eh_regs): Choose two call-clobbered registers for passing back values.
421
422 * frame.c, frame.h: New files for parsing dwarf 2 frame info.
423 * Makefile.in (LIB2ADD): New variable. Add $(srcdir)/frame.c.
424 (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
425 (stmp-multilib): Likewise.
426 ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
427
428 * except.c: #include "defaults.h".
429 (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
430 (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
431 (register_exception_table_p): New fn.
432 (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
433 (end_eh_unwinder): Likewise.
434
435 * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
436 call __register_frame and __deregister_frame as needed.
437 * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
438 * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro. Check
439 EH_FRAME_SECTION_ASM_OP.
440 * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
441 * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
442 (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
443
444 * dwarf2out.c (output_call_frame_info): If no support for
445 EXCEPTION_SECTION, mark the start of the frame info with a
446 collectable tag.
447 * collect2.c (frame_tables): New list.
448 (is_ctor_dtor): Recognise frame entries.
449 (scan_prog_file): Likewise.
450 (main): Pass -fno-exceptions to sub-compile. Also do collection
451 if there are any frame entries.
452 (write_c_file_stat): Call __register_frame_table and
453 __deregister_frame as needed.
454 (write_c_file_glob): Likewise.
455
456 * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
457 Also require unaligned reloc support.
458 * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
459 UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
460 * sparc/sysv4.h: Not here.
461
462 * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
463 * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
464 (dwarf2out_finish): Don't call dwarf2out_frame_finish.
465
466 * libgcc2.c (L_eh): Reorganize, moving code shared by different
467 EH implementations to the top.
468 (find_exception_handler): Split out. Start from 0. Compare against
469 end with >=.
470 (__find_first_exception_table_match): Use it.
471 * except.c (output_exception_table): Don't do anything if there's
472 no table. Don't output a first entry of zeroes.
473 (eh_outer_context): Adjust properly.
474 (add_eh_table_entry): Use xrealloc.
475 * toplev.c (compile_file): Just call output_exception_table.
476
477Wed Sep 10 11:30:36 1997 Jason Merrill <jason@cygnus.com>
478
479 * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
480
481Wed Sep 10 08:17:10 1997 Torbjorn Granlund <tege@pdc.kth..se>
482
483 * except.c (eh_outer_context): Do masking using expand_and.
484
b4d940a2
JL		 485Wed Sep 10 01:38:30 1997 Doug Evans <dje@cygnus.com>
486
487 Add port done awhile ago for the ARC cpu.
488 * arc/arc.h: New file.
489 * arc/arc.c: New file.
490 * arc/arc.md: New file.
491 * arc/initfini.c: New file.
492 * arc/lib1funcs.asm: New file.
493 * arc/t-arc: New file.
494 * arc/xm-arc.h: New file.
495 * ginclude/va-arc.h: New file.
496 * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
497 * ginclude/varargs.h: Likewise.
498 * Makefile.in (USER_H): Add va-arc.h.
499 * configure.in (arc-*-elf*): Recognize.
500 * longlong.h: Add ARC support.
501
502Wed Sep 10 01:32:54 1997 Jeffrey A Law (law@cygnus.com)
503
504 * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
505 when clearing non-BLKmode data.
506
10211581
JL		 507Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
508
9dfc6eba
MH		 509 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
510 * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
511
55259219
MH		 512 * xm-m88k.h (USG): Only define if it hasn't already been defined.
513
514 * Makefile.in (risky-stage1): Delete gratutious whitespace.
515
ee291069
MH		 516 * Makefile.in (clean): Delete libgcc1-test.
517
10211581
JL		 518 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
519
520Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
48f0be1b
SC		 521
522 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
523 template.
524
ca55abae
JM		 525Tue Sep 9 09:50:02 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
526
527 * dwarf2out.c (output_call_frame_info): Call named_section.
528
8f3d79e0
JL		 529Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
530
531 * haifa-sched.c (print_value): Fix last change.
532
ca55abae
JM		 533Tue Sep 9 01:30:37 1997 Jason Merrill <jason@yorick.cygnus.com>
534
535 * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
536 write_symbols.
537
538Mon Sep 8 16:32:43 1997 Jason Merrill <jason@yorick.cygnus.com>
539
540 * mips.c (function_prologue): Set up the CFA when ABI_32.
541
542 * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
543 for dwarf2 unwind info.
544 (output_function_prologue, sparc_flat_output_function_prologue): Same.
545
546 * final.c (final_end_function): Check dwarf2out_do_frame instead
547 of DWARF2_DEBUG for dwarf2 unwind info.
548 (final_scan_insn): Likewise.
549 (final_start_function): Likewise. Initialize dwarf2 frame debug here.
550 (final): Not here.
551
552 * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
553 count > 0.
554
555 * varasm.c (exception_section): Check EXCEPTION_SECTION first.
556
74aca74b
NC		 557Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
558
559 * v850.h (ASM_SPEC): Pass on target processor.
560 (CPP_PREDEFINES): Only define if not already specified.
561 (TARGET_VERSION): Only define if not already specified.
562 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
563 processor.
564 (EXTRA_SWITCHES): Extra entries in the switches array.
565 (TARGET_DEFAULT): Set default target processor.
566
c0b04148
JW		 567Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
568
569 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
570 cases, add %# and %/, and add : to make them into extended asms.
571
52b7724b
WL		 572Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
573
574 * alias.c (init_alias_analysis): Clean up incompatible pointer
575 type warning in bzero.
576 * regmove.c (regmove_optimize): Ditto.
577 * haifa-sched.c (find_rgns): Ditto.
578
579 * haifa-sched.c (print_value): Clean up ptr->int cast
580 warnings.
581
0c82f6bf
FF		 582Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
583
584 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
585 * install.texi (Configurations): Ditto.
586 * config.sub: Ditto.
587
1fed1f51
WL		 588Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
589
590 * Makefile.in (sdbout.o): Depend on insn-config.h.
591
239e68f6
JW		 592Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
593
594 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
595 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
596
267c09ab
JM		 597Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
598
599 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
600 prologue insn, only the first elt is significant.
601 (output_call_frame_info): For exception handling, always use 4-byte
602 fields as specified by the dwarf2 spec.
603 Don't skip trivial FDEs.
604
db7cafb0
JL		 605Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
606
607 * version.c: Bump for snapshot.
608
609Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
610
611 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
612 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
613 when op1_is_pow2.
614
615Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
616
bf520cd9
JL		 617 * final.c (shorten_branches): During first pass, assume worst
618 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
db7cafb0
JL		 619
620 * Makefile.in (distclean): Remove various things left around
621 by running the testsuite.
622
7ed46111
MH		 623Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
624
625 * configure.in (out_file): Emit definition to config.status in order
626 to have a defined value for configure.lang.
627 * configure: Re-built.
628
e41cea70
JJH		 629Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
630
bf520cd9 631 * configure.in: Make symlink to as-new rather than as.new. Similarly
e41cea70
JJH		 632 for ld-new.
633 * configure: Rebuilt.
634
1aeb1f6f
JW		 635Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
636
637 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
638
770a0113
CK		 639Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
640
641 * sparc/sparc.md: Add ultrasparc scheduling support.
642 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
643
f5ffa999
PDM		 644Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
645
646 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
647 as initial value for real_label_map.
648 (copy_for_inline): Likewise.
649
acceac1a
R		 650Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
651
652 * sched.c (update_flow_info) When looking if to set found_split_dest
653 or found_orig_dest, look at all parts of a PARALLEL.
654 * haifa-sched.c (update_flow_info): Likewise.
655
f84271d9
JL		 656Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
657
658 * v850: New directory for v850 port.
659 * v850/lib1funcs.asm: New file.
660 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
661 * ginclude/va-v850.h: New file.
662 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
663 * configure.in (mn10200-*-*): New target.
664 * configure: Rebuilt.
665 * config.sub: Handle v850-elf.
666 * Makefile.in (USER_H): Add va-mn10200.h.
667 * invoke.texi: Document v850 stuff.
668
89cc6098
JW		 669Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
670
04940ba5
JW		 671 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
672 has integer TYPE_{MAX,MIN}_VALUE before using them.
673
89cc6098
JW		 674 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
675 __HPUX_ASM__ versions.
676
c74f7db8
JL		 677Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
678
bf520cd9 679 * install.sh: Delete duplicate install script.
c74f7db8 680
914ec131
SC		 681Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
682
683 * reg-stack.c (subst_stack_regs): Pop the stack register for a
684 computed goto which sets the same stack register.
685
686 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
687 destination are both on the regstack.
688 (subst_stack_regs_pat): Put the destination at the top of the regstack.
689
c1090daa
JW		 690Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
691
d5d1738a
JW		 692 * mips.md (nonlocal_goto_receiver): Define.
693
f4da7881
JW		 694 * profile.c (output_arc_profiler): Check next_insert_after for non
695 NULL before deferencing it.
696
c1090daa
JW		 697 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
698
da594c94
JL		 699Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
700
701 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
702
3e28fe44
MM		 703Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
704
705 * toplev.c (rest_of_compilation): For passes starting with
706 flow_analysis, use print_rtl_with_bb instead of print_rtl.
707
708 * print-rtl.c (print_rtl_single): Print a single rtl value to a
709 file.
710
711 * flow.c (print_rtl_with_bb): Print which insns start and end
712 basic blocks. For the start of a basic block, also print the live
713 information.
714
7053ca72
JW		 715Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
716
417b0fa2
JW		 717 * toplev.c (main): Change #elif to #else/#ifdef
718
7053ca72
JW		 719 * tlink.c: Include ctype.h.
720 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
721
f05a8b25
MM		 722Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
723
724 * bitmap.c: Conditionally include stdlib.h.
bf520cd9 725 (free): Provide a declaration if NEED_DECLARATION_FREE.
f05a8b25 726
02d7a569
JS		 727Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
728
729 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
730
6030b6af
JW		 731Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
732
733 * profile.c (output_arc_profiler): Verify next_insert_after is an
734 INSN before and after skipping a stack pop.
735
04da53bd
R		 736Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
737
738 * final.c (shorten_branches): Don't count the lengths of deleted
739 instructions.
740
780532a4
JL		 741Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
742
743 * version.c: Bump for snapshot.
744
22fa5b8a
MM		 745Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
746
747 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
748 two bitmaps ANDed together.
749 (bitmap_print): Declare.
750
751 * bitmap.c (function_obstack): Don't declare any more.
752 (bitmap_obstack): Obstack for allocating links from.
753 (bitmap_obstack_init): New static to say whether to initialize
754 bitmap_obstack.
755 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
756 (bitmap_release_memory): Free all memory allocated from
757 bitmap_obstack.
758
759 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
760 EXECUTE_IF_AND_IN_BITMAP.
761
57163df0
JW		 762Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
763
fa8b6024
JW		 764 * alias.c (true_dependence): Address with AND can alias scalars.
765 (anti_dependence, output_dependence): Likewise.
766
57163df0
JW		 767 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
768
8aa4e786
JS		 769Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
770
771 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
772 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
773 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
774 definitions. Use -qrtems instead of -mrtems.
775
feb21122
RL		 776Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
777
778 * xm-sco5.h (sys_siglist): Define.
779 (SYS_SIGLIST_DECLARED): Likewise.
780
704af6a1
JL		 781Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
782
783 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
784
127cd405
TG		 785Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
786
787 * except.c (eh_outer_context): Expand masking operation using
788 expand_binop.
789
8cf02b47
JW		 790Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
791
792 * alpha.md (floatdisf2-1): New pattern.
793
49dad301
JL		 794Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
795
068f1cb8
JL		 796 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
797 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
f04e7122 798 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
068f1cb8
JL		 799 * gcc.texi: Note that if you define sys_siglist that you should
800 also define SYS_SIGLIST_DECLARED.
801
49dad301
JL		 802 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
803 are relative to the next instruction, not the current instruction.
804
a1729519
JW		 805Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
806
807 * local-alloc.c (contains_replace_regs): New function.
808 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
809 verify that there is no existing REG_EQUIV note, and add a call to
810 contains_place_regs.
811
290c8b1f
L		 812Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
813
814 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
815 (STARTFILE_SPEC): Always use crtbegin.o%s
816 (ENDFILE_SPEC): Always use crtend.o%s.
817
a6a503ed
JW		 818Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
819
820 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
821 is passed in.
822 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
823 SFmode for 64 bit hosts.
824
a94729bc
PH		 825Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
826
827 * fixincludes: Permits spaces between # and define. Discard C++
828 comments in sys/pci.h on HP/UX 10.20.
829
c9e03727
JL		 830Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
831
832 * version.c: Bump for snapshot.
833
2eddfed1
JL		 834 * pa.c (restore_unscaled_index_insn_codes): New function.
835 (record_unscaled_index_insn_codes): Likewise.
836 (output_function_prologue): Call restore_unscaled_index_insn_codes.
837 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
838 (pa_reorg): Call record_unscaled_index_insn_codes.
839
c9e03727
JL		 840 * haifa-sched.c (move_insn): Handle notes correctly for insns
841 with SCHED_GROUP_P set.
842
a5d6a95b
L		 843Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
844
845 * alpha/xm-linux.h (USE_BFD): Undef before define.
846
bc4ddc77
JW		 847Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
848
849 * cse.c (cse_insn): Don't record BLKmode values.
850
f3e0ca6c
SW		 851Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
852
853 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
854
e3512ac2
JL		 855Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
856
a63d08e6
JL		 857 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
858 * collect2.c (sys_errlist): Likewise.
859 * cpplib.c (sys_errlist): Likewise.
860 * gcc.c (sys_errlist): Likewise.
861 * protoize (sys_errlist): Likewise.
862 * configure.in: Check for strerror.
863 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
864 * xm-gnu.h (HAVE_STRERROR): Likewise.
865 * xm-linux.h (HAVE_STRERROR): Likewise.
866 * xm-netbsd.h (HAVE_STRERROR): Likewise.
867 * xm-bsd386.h (HAVE_STRERROR): Likewise.
868 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
869 * xm-dos.h (HAVE_STRERROR): Likewise.
870 * xm-mingw32.h (HAVE_STRERROR): Likewise.
871 * xm-pa.h (HAVE_STRERROR): Likewise.
872 * xm-papro.h (HAVE_STRERROR): Likewise.
873 * xm-sysv4.h (HAVE_STRERROR): Likewise.
874 * configure, config.in: Rebuilt.
875
db814993
JL		 876 * Makefile.in: Add several missing "else true" clauses.
877
e3512ac2
JL		 878 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
879 * mips-tfile.c: Likewise.
880 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
881 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
882 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
883 * configure.in: Check for sys_siglist declaration.
884 * configure, config.in: Rebuilt.
885
5d84b57e
JS		 886Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
887
888 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
889 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
890 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
891 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
892 * rs6000/sysv4.h (extra_subtarget_switches): Added new
893 macro EXTRA_SUBTARGET_SWITCHES.
894 * configure.in (sh*-*-rtems*): New target.
895 * sh/rtems.h: New file.
896 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
897 * configure: Rebuilt.
898
2599dcc7
JW		 899Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
900
901 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
902
3b7e5ef4
DE		 903Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
904
905 * rs6000.md: Make DF fused-add operations pay attention to
906 -mno-fused-add.
907
5cd5f4a7
JW		 908Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
909
910 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
911
63e7fe9b
JL		 912Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
913
914 * pa.md (reload_peepholes): Make sure operand is a REG before
915 examining REGNO. Allow general registers too.
916
eb7b11fd
JW		 917Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
918
919 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
920
c760091a
PT		 921Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
922
5cd5f4a7 923 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
c760091a
PT		 924 to reallocate abbrev_die_table.
925
57583338
JW		 926Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
927
928 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
929
eae4b970
AS		 9301997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
931
4f91a0f8
AS		 932 * Makefile.in (config.status): Depend on version.c
933
eae4b970
AS		 934 * expr.h (insn_gen_function): Reenable prototype.
935
936 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
937 first parameter.
938
00fc09e1
JW		 939Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
940
941 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
942
2601ebca
JL		 943Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
944
945 * version.c: Bump for latest snapshot.
946
947 * bc-optab.c: Conditionally include stdlib.h.
948 (free): Provide a declaration if NEED_DECLARATION_FREE.
949 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
950 * rtl.h (free): Remove declaration.
951 * tree.h (free): Remvoe declaration.
952
953 * configure: Rebuilt.
954
e5eb27e5
JL		 955Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
956
957 * flags.h (flag_move_all_movables): Declare.
958 (flag_reduce_all_givs): Likewise.
959 * loop.c (move_movables): Handle flag_move_all_movables.
960 (strength_reduce): Handle flag_reduce_all_givs.
961 * toplev.c (flag_move_all_movables): Define.
962 (flag_reduce_all_givs): Likewise.
963 (f_options): Add -fmove-all-movables and -freduce-all-givs.
964 * invoke.texi: Document new options, including alias stuff that
965 wasn't included last time.
966
d995a6dc
BM		 967Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
968
969 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
970 * t-mn10200: Ditto.
971 * t-vxsparc: Ditto.
972 * t-vxworks68: Ditto.
973 * t-vxworks960: Ditto.
974 * t-vx29k: Ditto.
975
ba64ca33
RH		 976Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
977
978 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
979 if not already defined, and USE_C_ALLOCA not defined.
980
ca20876d
JW		 981Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
982
7818d6fc
JW		 983 * config.guess: Replace with script that uses ../config.guess.
984
ca20876d
JW		 985 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
986 if USE_GNULIBC_1 is not defined.
987
704a6306
RH		 988Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
989
990 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
991 * config.guess: Recognize alpha-linux-gnulibc1.
992 * configure.in (alpha-*-linux-gnulibc1): New target.
993 (alpha-*-linux-gnu*): Don't build crtbegin/end.
994
67f68fd2
JW		 995Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
996
997 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
998 last change.
999
88016fb7
DE		 1000Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
1001
1002 * loop.c (combine_movables): Earlier insns don't match later ones.
1003
bba17b29
L		 1004Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1005
1006 * config/linux.h (CC1_SPEC): Define it only if not defined.
1007
1008 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
1009 <linux.h>
1010
1011 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
1012 USE_GNULIBC_1 is not defined.
1013
33d2808b 1014 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
bba17b29
L		 1015
1016 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
1017 as 1 if USE_GNULIBC_1 is not defined.
1018
ed4044e0
JL		 1019Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
1020
f345de42
JL		 1021 * reorg.c (dbr_schedule): Allow current_function_return_rtx
1022 to be something other than a REG.
1023 * function.c (expand_function_end): Fix current_function_return_rtx
1024 if it was a pseudo.
1025
ed4044e0
JL		 1026 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
1027 * x-netbsd: Likewise
1028 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1029 (INSTALL_HEADERS): Delete.
1030 * x-dguxbcs: Likewise.
1031 * x-hp3bsd44: Likewise
1032 * x-pa: Likewise.
1033
47d36400
BS		 1034Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1035
1036 * i386.md (pop): pop increments the stack pointer.
1037 (prologue_set_stack_ptr): New pattern.
1038 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1039 instead of subsi3.
1040
fc79eafe
JW		 1041Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
1042
1043 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1044 address where an offsettable address is required.
1045
c5da853f
MH		 1046Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
1047
1048 * loop.c (check_final_value): Don't miss a biv increment in a
1049 parallel.
1050
d4ef15f2
JW		 1051Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
1052
1053 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1054 TYPE_DECL_IS_STUB instead of DECL_NAME.
1055
10549cbd
JW		 1056Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1057
1058 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1059
1060Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
1061
1062 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1063
484df988
JL		 1064Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
1065
1066 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1067 (find_post_sched_live): Likewise.
1068
1069 * haifa-sched.c (schedule_block): Remove old code to get arguments
1070 from hard regs into pseudos early.
1071
39dfb55a
JL		 1072Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
1073
1074 * version.c: Bump for new snapshot.
1075
1076 * local-alloc.c (update_equiv_regs): All the target to reject
1077 promotion of some REG_EQUAL to REG_EQUIV notes.
1078 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1079
1080 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1081 secondary reloads.
1082
1083 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
1084 store of the argument registers.
1085
1086Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
1087
1088 * fold-const.c (multiple_of_p): New function.
1089 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
1090
d78778eb
JL		 1091Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
1092
1093 * expr.h (insn_gen_function): Temporarily remove prototype.
1094
feb9ea1a
JW		 1095Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
1096
1097 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
1098 filenames. Use sed to extract base filename for install.
1099
b6ffe602
JC		 1100Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
1101
1102 * unroll.c (find_splittable_givs): Only share if two givs have the
1103 same add and multiply values.
1104
2ebfd230
JW		 1105Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
1106
1107 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
1108 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
1109
251ffdee
JL		 1110Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
1111
1112 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
1113 around branch tables.
1114 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
1115 and .end_brtab directives if TARGET_GAS.
1116
19372aa1
JW		 1117Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
1118
27314274
JW		 1119 * alias.c (true_dependence): Pass x_addr not x to varies.
1120
19372aa1
JW		 1121 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1122 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1123 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1124 declarations.
1125 * config.in, configure: Regenerate.
1126
2a2c8203
JC		 1127Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
1128
1129 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1130 LO_SUM.
1131 (record_set): Handle LO_SUM like PLUS.
1132 (init_alias_analysis): When following chains of base addresses,
1133 do not stop on reaching a hard register.
1134
d80357b7
JL		 1135Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
1136
1137 * version.c: Bump for new snapshot.
1138
b4f32d7b
JW		 1139Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
1140
1141 * alpha.h (ARCH_ASM_FILE_START): Define.
1142 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1143 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1144
ca363bb6
JL		 1145Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
1146
1147 * Makefile.in (install-common): Put gcov comment at start of line.
1148
7557aa98
JL		 1149Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
1150
1151 * alias.c (init_alias_analysis): When simplifying the reg_base_value
1152 array, simplify entries for hard registers too.
1153
c34e3ae4
DL		 1154Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
1155
1156 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1157 list.
1158
e3eef942
JW		 1159Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
1160
1161 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1162 block_stack before dereferencing it.
1163
1164Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
246853b9
MM		 1165
1166 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1167
04f41951
JM		 1168Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
1169
1170 * cplus-dem.c: Add 'extern' to prepends_underscore.
1171
e933cbe0
JL		 1172Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
1173
62d65906
JL		 1174 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1175 (get_issue_rate): Delete.
1176 * pa.h (ISSUE_RATE): Define.
1177
2da05a5b
JL		 1178 * configure.in: Turn on haifa by default for the PA.
1179 * configure: Rebuilt.
1180 * pa.c (override_options): Accept -mschedule=7200 option.
1181 (pa_adjust_cost): No longer need to scale costs for newer
1182 processors.
1183 * pa.h (enum processor_type): Add PROCESSOR_7200.
1184 * pa.md: Revamp scheduling parameters to work better with
1185 haifa. Add scheduling parameters for the 7200.
1186
4f64eaca
JL		 1187 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1188 insns too.
1189 (schedule_block): When adjusting basic_block_{head,end}, account
1190 for movement of SCHED_GROUP_P insns too.
1191
1192 * haifa-sched.c (debug_dependencies): Fix thinko.
1193
e933cbe0
JL		 1194 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1195 (site.exp, check, check-g++, check-gcc): New targets.
1196
4f64eaca 1197 * haifa-sched.c: Make lots of variables static.
61822835 1198
e9576d2c
L		 1199Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1200
1201 * expr.h, real.h: Finish prototyping.
1202
61822835
JL		 1203Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
1204
1205 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1206 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1207 * reload1.c: Undo bugfix from Aug 11.
1208
f24b370a
MM		 1209Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
1210
1211 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1212 quotes around the name.
1213 * configure: Regenerate.
1214
1c4c5851
JW		 1215Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
1216
1217 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1218
71abb567
MH		 1219Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
1220
1221 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1222 to sub-makes to avoid building more passes than the user might have
1223 requested on the command line.
1224
6042434a
DL		 1225Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
1226
1227 * configure.in: Expurgate `broken_install' (install is
1228 autoconfed).
1229
1230 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1231 relevant).
1232
38ea060f
JL		 1233Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
1234
1235 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1236 functions and declarations.
1237 (analyze_loop_iterations): Use condjump_p.
1238 (insert_bct): Likewise. Use exact_log2.
1239
f187056f
JL		 1240Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
1241
1242 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1243 (schedule_region): Likewise.
1244 (schedule_insns): Likewise.
1245
1246 * PROJECTS: Update with Haifa stuff.
1247
9af06254
JL		 1248Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
1249
1250 * version.c: Change the version string to look like:
11c21791 1251 egcs-2.90.00 970814 (gcc2-970802 experimental).
9af06254 1252
0945e937
JL		 1253 * loop.c (is_conditional_branch): Make definition match declaration.
1254
9af06254
JL		 1255 * gcc.c: Take out experimental snapshot warning message.
1256
ebc25a17
MM		 1257Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
1258
1259 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1260 print out the names of the notes. Print out the name of the insn
1261 that is not a note, and not an {,CALL_,JUMP_}INSN.
1262
610ce97e
JM		 1263Wed Aug 13 17:32:38 1997 Jason Merrill <jason@yorick.cygnus.com>
1264
1265 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1266 again for the slot after we give it RTL.
1267
992d1248
DE		 1268Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
1269
1270 * configure.in (haifa configury): Fix typo.
1271 * configure: Regenerate.
1272
7bb6fbd1
JL		 1273Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
1274
1275 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1276
1277 * gcc.info*: Rebuilt.
1278
1279 * COPYING.g77, README.g77: New files.
1280 * real.c (ereal_unto_float, ereal_unto_double): New functions.
1281 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1282 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1283
8c660648
JL		 1284Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
1285
1286 * Integrate Haifa instruction scheduler.
1287 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
1288 to sched with $(SCHED_CFLAGS.
1289 * configure.in: Handle --enable-haifa.
1290 * configure: Rebuilt.
1291 * flags.h: Add new flags for haifa instruction scheduler.
1292 * genattrtab.c (expand_units): For haifa, don't subtract one
1293 when computing blockage.
1294 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1295 (flag_schedule_speculative): Ditto.
1296 (flag_schedule_speculative_load): Ditto.
1297 (flag_schedule_speculative_load_dangerous): Ditto.
1298 (flag_schedule_reverse_before_reload): Ditto.
1299 (flag_schedule_reverse_after_reload): Ditto.
1300 (flag_branch_on_count_reg): Ditto.
1301 (f_options): Add Haifa switches.
1302 (main): Turn off some Haifa options if appropriate macro is
1303 defined. Process Haifa switches.
1304 * unroll.c (iteration_info): No longer static, since Haifa
1305 scheduler uses it.
1306 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1307 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1308 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1309 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1310 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1311 storage for the Haifa scheduler.
1312 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1313 LABEL_NEXTREF.
1314 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1315 are defined, call analyze_loop_iterations and insert_bct to use
1316 countdown loops.
1317 (record_giv): Refine test for jumps out of loops if HAIFA is
1318 defined.
1319 (analyze_loop_iterations): New function to identify if we can use
1320 a countdown loop.
1321 (insert_bct): Insert countdown loop.
1322 (instrument_loop_bct): Low level code to insert countdown loop.
1323 (loop_number): Calculate UID of loop.
1324 (indirect_jump_in_function_p): Return true if an indirect jump is
1325 in the function.
1326 (is_power_of_2): Return true if value is a power of 2.
1327 (is_conditional_branch): Return true if insn is a conditional
1328 jump.
1329 (fix_bct_param): Process -fbct-{min,max}-N switches.
1330 (check_bct_param): Return true if loop should be instrumented.
1331 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1332 (loop_optimize): Initialize.
1333 (get_condition_for_loop): Ditto.
1334 * loop.c (strength_reduce): Inside of code that uses #ifdef
1335 HAVE_decrement_and_branch_on_count code, test it to make sure the
1336 condition is true.
1337 (instrument_loop_bct): Ditto.
1338 * haifa-sched.c: New file.
1339
1340
1341 * Integrate regmove pass.
1342 * Makefile.in (OBJS): Add regmove.o
1343 (regmove.o): Add dependencies.
1344 * flow.c (find_use_as_address): No longer static.
1345 * rtl.h (find_use_as_address): Declare.
1346 * toplev.c (regmove_dump, flag_regmove): Define.
1347 (f_options): Add -fregmove.
1348 (regmove_dump_file, regmove_time): Define.
1349 (fatal_insn): Close the regmove dump file.
1350 (compile_file): Initialize regmove_time; open/close the regmove dump
1351 file as needed. Print regmove time as needed.
1352 (rest_of_compilation): Run regmove pass if requested, dump
1353 RTL after regmove if requested.
1354 (main): If -O2 or more, turn on regmove. Handle dump switches.
1355 * regmove.c: New file.
1356
aa32d841
JL		 1357Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
1358
1359 * Integrate tlink patch from jason@cygnus.com
1360 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1361 (process_command): Increment n_switches for them. Don't discard
1362 their args. Validate them.
1363 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1364 From Rohan Lenard.
1365 (process_command): Set include_prefixes from COMPILER_PATH.
1366 (main): Set COLLECT_GCC_OPTIONS sooner.
1367 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1368 * tlink.c, hash.c, hash.h: New files.
1369 * Makefile.in (USE_COLLECT2): Always use collect2.
1370 (collect2): Depend on and link in hash.o and tlink.o.
1371 (tlink.o, hash.o): Add dependencies.
1372
5fa39bfe
JL		 1373Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
1374
9ae8ffe7
JL		 1375 * Integrate alias analysis changes from jfc@mit.edu
1376 * Makefile.in (OBJS): Add alias.o
1377 (alias.o): Add dependencies.
1378 * alias.c: New file.
1379 * sched.c: Remove alias analysis code. It lives in alias.c now.
9ae8ffe7 1380 (sched_analyze_2): Add new arguments to true_dependence.
9ae8ffe7
JL		 1381 (schedule_insns): Always call init_alias_analysis.
1382 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1383 mark return value from such functions as a pointer and keep track of
1384 them for alias analysis. If a return value from a function is a
1385 pointer, mark it as such.
1386 * combine.c (distribute_notes): Handle REG_NOALIAS.
1387 * cse.c (struct write_data): Delete. No longer needed.
1388 (invalidate): Don't call set_nonvarying_address_components anymore.
1389 Use true_dependence to decide if an entry should be removed from
1390 the hash table.
1391 (invalidate_memory): Remove WRITES argument, simplify appropriately.
1392 Fix all callers.
1393 (note_mem_written): Similarly for WRITE_PTR argument.
1394 (invalidate_from_clobbers): Similarly for W argument.
1395 (invalidate_for_call): Remove memory elements from the hash table.
1396 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1397 (cse_rtx_varies_p): New function. Derived from old
1398 cse_rtx_addr_varies_p.
1399 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1400 Don't call note_mem_written anymore. Stack pushes invalidate the stack
1401 pointer if PUSH_ROUNDING is defined. No longer need to call
1402 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1403 (skipped_writes_memory): Remove variable.
1404 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1405 (invalidate_skipped_block): Simplify for new alias analysis code.
1406 (cse_set_around_loop): Likewise.
1407 (cse_main): Call init_alias_analysis.
1408 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1409 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1410 (f_options): Add new alias checking arguments.
1411 (main): Set flag_alias_check when optimizing.
1412 * local_alloc (validate_equiv_mem_from_store): Add new arguments
1413 to true_dependence.
1414 (memref_referenced_p): Likewise.
1415 * loop.c (NUM_STORES): Increase to 30.
1416 (prescan_loop): Only non-constant calls set unknown_address_altered.
1417 (invariant_p): Add new arguments to true_dependence.
1418 (record_giv): Initialize unrolled and shared fields.
1419 (emit_iv_add_mult): Call record_base_value as needed.
1420 * loop.h (struct induction): Add unrolled and shared fields.
1421 * unroll.c (unroll_loop): Call record_base_value as needed.
1422 (copy_loop_body): Likewise.
1423 (final_biv_value): Likewise.
1424 (final_giv_value): Likewise.
1425 (find_splittable_regs): Likewise. Only create one new pseudo
1426 if we have multiple address GIVs that were combined with the same
1427 dst_reg GIV. Note when a new register is created due to unrolling.
1428 * rtl.c (reg_note_name): Add REG_NOALIAS.
1429 * rtl.h (enum reg_note): Similarly.
1430 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1431 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1432 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1433 (true_dependence, read_dependence, anti_dependence): Likewise.
1434 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1435 (mark_user_reg, mark_reg_pointer): Likewise.
1436
1437
1438 * Integrate reload bugfix from Wilon which enables the PA port
5fa39bfe
JL		 1439 to bootstrap again.
1440 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1441 OPERAND_ADDRESS when computing how many registers an insn needs.
1442 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1443 conflict.
1444 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1445 OPADDR_ADDR reload.
1446 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1447 in reload_reg_use_in_op_addr do not reach the end.
1448 do not reach the end.
1449 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1450 RELOAD_FOR_OPERAND_ADDRESS.
1451
1452Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
1453
2dcfcb56 1454 * egcs project officially starts.
861bb6c1 1455
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