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update doc for CONST_{,DOUBLE_}OK_FOR_LETTER_P, EXTRA_CONTSTRAINT
[gcc.git] / gcc / ChangeLog
CommitLineData
42f4929d
RH		 1Tue Oct 28 14:36:45 1997 Richard Henderson <rth@cygnus.com>
2
3 * alpha.md (reload_inqi): Check for MEM before strict_memory_address_p,
4 since any_memory_operand() allows pseudos during reload.
5 (reload_inhi, reload_outqi, reload_outhi): Likewise.
6
08417478
JW		 7Tue Oct 28 11:53:14 1997 Jim Wilson <wilson@cygnus.com>
8
9 * m68k.md (btst patterns): Add 5200 support.
10
750e8348
TM		 11Tue Oct 28 11:58:40 1997 Toon Moene <toon@moene.indiv.nluug.nl>
12
13 * fold-const.c (fold): For ((a * C1) / C3) or (((a * C1) + C2) / C3)
14 optimizations, look inside dividend to determine if the expression
15 can be simplified by using EXACT_DIV_EXPR.
16
ede19932
JM		 17Tue Oct 28 10:19:01 1997 Jason Merrill <jason@yorick.cygnus.com>
18
19 From Brendan:
20 * dwarf2out.c (output_call_frame_info): Use l1 instead of ".".
21
66d91cb9
RH		 22Tue Oct 28 00:32:14 1997 Richard Henderson <rth@cygnus.com>
23
24 * alpha.c (summarize_insn [SUBREG]): Propogate SET.
25
4f3f5e9f
RH		 26Mon Oct 27 23:59:26 1997 Richard Henderson <rth@cygnus.com>
27
28 * alpha.c (alpha_handle_trap_shadows): Don't call get_attr_trap
29 on a CLOBBER.
30
f3352b9e
RH		 31Mon Oct 27 21:25:20 1997 Richard Henderson <rth@cygnus.com>
32
33 * alpha.md (movqi, movhi): Make sure new insns created during reload
34 won't need reloading themselves.
35 (reload_inqi, reload_inhi, reload_outqi, reload_outhi): Likewise.
36
0cecc190
JL		 37Mon Oct 27 16:11:10 1997 Jeffrey A Law (law@cygnus.com)
38
39 * mn10300.h (GO_IF_LEGITIMATE_ADDRESS): Disable reg+reg.
40
a09ba5a2
RH		 41Sun Oct 26 13:50:44 1997 Richard Henderson <rth@cygnus.com>
42
43 * alpha.c (alpha_sa_mask [VMS]): Don't include $26 in the mask.
44 Patch from Klaus Kaempf <kkaempf@progis.de>.
45
7581a30f
JW		 46Sun Oct 26 13:31:47 1997 Jim Wilson (wilson@cygnus.com)
47
48 * expr.c (expand_expr, case INDIRECT_REF): Optimize a reference
49 to an element in a constant string.
50
d84e64d4
JM		 51Sun Oct 26 11:41:49 1997 Jason Merrill <jason@yorick.cygnus.com>
52
53 * dwarf2out.c (output_call_frame_info): The CIE pointer is now a 32
54 bit PC-relative offset. The exception range table pointer is now in
55 the CIE.
56 * frame.c (dwarf_cie, dwarf_fde): Rename CIE_pointer to CIE_delta.
57 (count_fdes, add_fdes, get_cie): Adjust.
58 (cie_info, extract_cie_info, __frame_state_for): Adjust eh_ptr uses.
59
60 From H.J. Lu:
61 * frame.c (count_fdes, add_fdes): Skip linked once FDE entries.
62
96286722
RH		 63Sun Oct 26 11:52:01 1997 Richard Henderson <rth@cygnus.com>
64
65 * alias.c (memrefs_conflict_p): Treat arg_pointer_rtx just
66 like stack_pointer_rtx.
67
e85988b5
MH		 68Sun Oct 26 11:32:16 1997 Manfred Hollstein <manfred@s-direktnet.de>
69
361e618f
MH		 70 * Makefile.in (bootstrap-lean): Combined with `normal' bootstrap
71 targets using "$@" to provide support for similar but not identical
72 targets without having to duplicate code.
73 (bootstrap4): New goal.
74
e85988b5
MH		 75 * Makefile.in (compare, compare-lean, compare3): Combined to one
76 ruleset determining actions to be performed via $@.
77 (compare4, compare4-lean): New targets.
78 (gnucompare, gnucompare3): Combined to one ruleset determining
79 actions to be performed via $@. Also, note which files failed
80 the comparison test in .bad_compare.
81 (gnucompare-lean, gnucompare3-lean, gnucompare4-lean): New targets.
82
91585c63
TM		 83Sun Oct 26 10:06:11 1997 Toon Moene <toon@moene.indiv.nluug.nl>
84
85 * fold-const (fold): Also simplify FLOOR_DIV_EXPR to EXACT_DIV_EXPR
86 if the dividend is a multiple of the divisor.
87
da0af5a5
JL		 88Sun Oct 26 09:21:40 1997 Jeffrey A Law (law@cygnus.com)
89
7337c67f
JL		 90 * Makefile.in (LIBGCC2_CFLAGS): Add -fexceptions.
91
adb9effb 92 * alias.c (find_base_term): Handle PRE_INC, PRE_DEC, POST_INC,
6d849a2a 93 and POS_DEC.
6d849a2a
JL		 94
95 * alias.c (true_dependence): Fix typo.
96
6d6d0fa0
JL		 97 * toplev.c (flag_rerun_loop_opt): New variable.
98 (f_options): Handle -frerun-loop-opt.
99 (rest_of_compilation): If -frerun-loop-opt, then run the loop
100 optimizer twice.
101 (main): Enable -frerun-loop-opt by default for -O2 or greater.
102
da0af5a5
JL		 103 * loop.c (simplify_giv_expr): Adding two invariants results
104 in an invariant.
105
ca0f2220
RH		 106Sun Oct 26 09:15:15 1997 Richard Henderson <rth@cygnus.com>
107
108 * expr.c (get_inner_reference): Remove the array bias after
109 converting the index to Pmode.
110
a6f7ba17
JL		 111Sat Oct 25 12:20:58 1997 Jeffrey A Law (law@cygnus.com)
112
113 * mn10300.h (TARGET_SWITCHES): Add -mmult-bug and -mno-mult-bug.
114 (TARGET_MULT_BUG): Define.
115 (TARGET_DEFAULT): Default to TARGET_MULT_BUG.
116 * mn10300.md (mulsi3): Handle TARGET_MULT_BUG.
117
17ad8a3b
JL		 118Fri Oct 24 17:40:34 1997 Jeffrey A Law (law@cygnus.com)
119
120 * mn10200.c (indirect_memory_operand): Delete unused function.
121 * mn10200.h (EXTRA_CONSTRAINT): Handle 'R'.
122 * mn10200.md (bset, bclr insns): Handle output in a reg too.
123
e16b49d3
RH		 124Fri Oct 24 15:54:57 1997 Richard Henderson <rth@cygnus.com>
125
126 * alpha.md (call patterns): Revert Oct 16 change; if we are to elide
127 the callee's ldgp, we must do it ourselves, and we use the jsr tag
128 for more than scheduling.
129
27f65411
DE		 130Fri Oct 24 13:23:04 1997 Doug Evans <devans@canuck.cygnus.com>
131
132 * sparc/sparc.h (ASM_SPEC): Delete asm_arch.
133
e9ad4573
JL		 134Fri Oct 24 13:19:40 1997 Jeffrey A Law (law@cygnus.com)
135
136 * mn10300.c (symbolic_operand, legitimize_address): New functions.
137 * mn10300.h (LEGITIMIZE_ADDRESS): Call legitimize_address.
138 (GO_IF_LEGITIMATE_ADDRESS): Don't allow base + symbolic.
139
66724f0a
JL		 140Thu Oct 23 09:35:12 1997 Jeffrey A Law (law@cygnus.com)
141
142 * version.c: Bump for snapshot.
143
c401498b
R		 144Thu Oct 23 08:03:59 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
145
146 * dbxout.c (dbxout_start_new_source_file): Use output_quoted_string
147 for FILENAME.
148
b22b9b3e
JL		 149Wed Oct 22 00:34:12 1997 Jeffrey A Law (law@cygnus.com)
150
56bf1fd9
JL		 151 * toplev.c (flag_exceptions): Default value is 2.
152 (compile_file): If flag_exceptions still has the value 2, then
153 set it to 0.
154
a04232e5
JL		 155 * rs6000.c (struct machine_function): Add pic_offset_table_rtx.
156 (rs6000_save_machine_status): Save pic_offset_table_rtx.
157 (rs6000_restore_machine_status: Restore pic_offset_table_rtx.
158
0bd83abd
JL		 159 * local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions
160 are shared.
161
b22b9b3e
JL		 162 * rs6000.md (*movsi_got_internal_mem): New pattern.
163 (*movsi_got_internal_mem splitter): New define_split.
164
c1e385db
JW		 165Tue Oct 21 18:14:03 1997 Jim Wilson <wilson@cygnus.com>
166
167 * obstack.h (obstack_empty_p): Fix spurious space after backslash.
168
1a986152
GK		 169Tue Oct 21 18:34:01 1997 Geoffrey KEATING <geoffk@ozemail.com.au>
170
171 * rs6000.c: Avoid creating a stack frame under SYSV ABI if we
172 only need to save LR.
173
5d29a95f
JL		 174Tue Oct 21 10:06:40 1997 Jeffrey A Law (law@cygnus.com)
175
c6ee9150
JL		 176 * mn10300.md (movqi, movhi): Avoid using address registers as
177 destinations unless absolutely necessary.
178
d5255ba2
JL		 179 * mn10200.c (expand_prologue): Fix typo.
180
9d2128b8
JL		 181 * mn10200.h (GO_IF_LEGITIMATE_ADDRESS): Do not allow indexed
182 addresses.
183 * mn10200.md (neghi2): Provide an alternative which works if
184 the input and output register are the same.
185
576e5acc
JL		 186 * mn10300.c (print_operand): Handle 'S'.
187 * mn10300.md (ashlsi3, lshrsi3, ashrsi3): Use %S for
188 shift amount in last alternative
189
5d29a95f
JL		 190 * mn10300.c (expand_epilogue): Rework to handle register restores
191 in "ret" and "retf" instructions correctly.
192
3bf1b082
JW		 193Mon Oct 20 16:47:08 1997 Jim Wilson <wilson@cygnus.com>
194
195 * expmed.c (extract_bit_field): Don't make flag_force_mem disable
196 extzv for memory operands.
197
198 * cse.c (simplify_ternary_operation, case IF_THEN_ELSE): Collapse
199 redundant conditional moves to single operand.
200
ddbd8d36
NC		 201Mon Oct 20 15:30:26 1997 Nick Clifton <nickc@cygnus.com>
202
203 * v850.h: Move define of __v850__ from CPP_PREDEFINES
204 to CPP_SPEC.
205
206 * xm-v850.h: Use __v850 rather than __v850__ to
207 identify v850 port.
208
a944a4eb
JW		 209Mon Oct 20 14:15:02 1997 Jim Wilson <wilson@cygnus.com>
210
211 * mips/mips.c (compute_frame_size): Not a leaf function if
212 profile_flag set.
213
2d5b6dea
GK		 214Mon Oct 20 14:16:38 1997 Geoffrey KEATING <geoffk@ozemail.com.au>
215
216 * rs6000/t-ppccomm: Use -msdata=none for crtstuff.
217
f0a9fa6c
DE		 218Mon Oct 20 12:28:17 1997 Doug Evans <devans@canuck.cygnus.com>
219
220 * sparc/sparc.h (SPARC_V9,SPARC_ARCH64): Delete.
221 (DEFAULT_ARCH32_P): New macro.
222 (TARGET_ARCH{32,64}): Allow compile time or runtime selection.
223 (enum cmodel): Declare.
224 (sparc_cmodel_string,sparc_cmodel): Declare.
225 (SPARC_DEFAULT_CMODEL): Provide default.
226 (TARGET_{MEDLOW,MEDANY}): Renamed to TARGET_CM_{MEDLOW,MEDANY}.
227 (TARGET_FULLANY): Deleted.
228 (TARGET_CM_MEDMID): New macro.
229 (CPP_CPU_DEFAULT_SPEC): Renamed from CPP_DEFAULT_SPEC.
230 (ASM_CPU_DEFAULT_SPEC): Renamed from ASM_DEFAULT_SPEC.
231 (CPP_PREDEFINES): Take out stuff now handled by %(cpp_arch).
232 (CPP_SPEC): Rewrite.
233 (CPP_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
234 (CPP_{ENDIAN,SUBTARGET}_SPEC): New macros.
235 (ASM_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
236 (ASM_SPEC): Add %(asm_arch).
237 (EXTRA_SPECS): Rename cpp_default to cpp_cpu_default.
238 Rename asm_default to asm_cpu_default.
239 Add cpp_arch32, cpp_arch64, cpp_arch_default, cpp_arch, cpp_endian,
240 cpp_subtarget, asm_arch32, asm_arch64, asm_arch_default, asm_arch.
241 (NO_BUILTIN_{PTRDIFF,SIZE}_TYPE): Define ifdef SPARC_BI_ARCH.
242 ({PTRDIFF,SIZE}_TYPE): Provide 32 and 64 bit values.
243 (MASK_INT64,MASK_LONG64): Delete.
244 (MASK_ARCH64): Renamed to MASK_64BIT.
245 (MASK_{MEDLOW,MEDANY,FULLANY,CODE_MODEL}): Delete.
246 (EMBMEDANY_BASE_REG): Renamed from MEDANY_BASE_REG.
247 (TARGET_SWITCHES): Always provide 64 bit options.
248 (ARCH64_SWITCHES): Delete.
249 (TARGET_OPTIONS): New option -mcmodel=.
250 (INT_TYPE_SIZE): Always 32.
251 (MAX_LONG_TYPE_SIZE): Define ifdef SPARC_BI_ARCH.
252 (INIT_EXPANDERS): sparc64_init_expanders renamed to sparc_init_....
253 (FUNCTION_{,BLOCK_}PROFILER): Delete TARGET_EMBMEDANY support.
254 (PRINT_OPERAND_PUNCT_VALID_P): Add '_'.
255 * sparc/linux-aout.h (CPP_PREDEFINES): Take out stuff handled by
256 CPP_SPEC.
257 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
258 * sparc/linux.h: Likewise.
259 * sparc/linux64.h (SPARC_V9,SPARC_ARCH64): Delete.
260 (ASM_CPU_DEFAULT_SPEC): Renamed from ASM_DEFAULT_SPEC.
261 (TARGET_DEFAULT): Delete MASK_LONG64, MASK_MEDANY, add MASK_64BIT.
262 (SPARC_DEFAULT_CMODEL): Define.
263 (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
264 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
265 (LONG_DOUBLE_TYPE_SIZE): Define.
266 (ASM_SPEC): Add %(asm_arch).
267 * sparc/sol2.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
268 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
269 (TARGET_CPU_DEFAULT): Add ultrasparc case.
270 * sparc/sp64-aout.h (SPARC_V9,SPARC_ARCH64): Delete.
271 (TARGET_DEFAULT): MASK_ARCH64 renamed to MASK_64BIT.
272 (SPARC_DEFAULT_CMODEL): Define.
273 * sparc/sp64-elf.h (SPARC_V9,SPARC_ARCH64): Delete.
274 (TARGET_DEFAULT): MASK_ARCH64 renamed to MASK_64BIT. Delete
275 MASK_LONG64, MASK_MEDANY.
276 (SPARC_DEFAULT_CMODEL): Define.
277 (CPP_PREDEFINES): Delete.
278 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
279 (ASM_SPEC): Add %(asm_arch).
280 (LONG_DOUBLE_TYPE_SIZE): Define.
281 (DWARF2_DEBUGGING_INFO): Define.
282 * sparc/splet.h (CPP_SPEC): Delete.
283 * sparc/sysv4.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
284 (FUNCTION_BLOCK_PROFILER): Delete TARGET_EMBMEDANY support.
285 (BLOCK_PROFILER): Likewise.
286 * sparc/sparc.c (sparc_cmodel_string,sparc_cmodel): New globals.
287 (sparc_override_options): Handle code model selection.
288 (sparc_init_expanders): Renamed from sparc64_init_expanders.
289 * sparc/sparc.md: TARGET_<code_model> renamed to TARGET_CM_....
290 TARGET_MEDANY renamed to TARGET_CM_EMBMEDANY.
291 (sethi_di_embmedany_{data,text}): Renamed from sethi_di_medany_....
292 (sethi_di_fullany): Delete.
293
a3b0df2d
KK		 294Mon Oct 20 02:00:18 1997 Klaus Kaempf <kkaempf@progis.de>
295 Jeff Law <law@cygnus.com>
296 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
297
3a133c72
KK		 298 * alpha/vms.h (DIVSI3_LIBCALL): OTS$ functions are upper case.
299 (DIVDI3_LIBCALL, UDIVSI3_LIBCALL, UDIVDI3_LIBVALL): Likewise.
300 (MODSI3_LIBCALL, MODDI3_LIBCALL): Likewise.
301 (UMODSI3_LIBCALL, UMODDI3_LIBCALL): Likewise.
302 * alpha/alpha.md (arg_home): Likewise.
303
a3b0df2d
KK		 304 * alpha/alpha.c (vmskrunch): Delete
305 * alpha/vms.h (ENCODE_SECTION_INFO, ASM_DECLARE_FUNCTION_NAME): Delete.
306 * alpha.c (output_prolog, VMS): Use alloca for entry_label and don't
307 truncate to 64 characters.
308
309 * make-l2.com: Support openVMS/Alpha.
310
311 * vmsconfig.com: Fix to work on openVMS/Alpha and openVMS/VAX.
312
7d4f2e6c
R		 313Sun Oct 19 19:00:35 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
314
315 * longlong.h (count_leading_zeros): Add missing casts to USItype.
316
decd44ac
JL		 317Sun Oct 19 18:44:06 1997 Jeffrey A Law (law@cygnus.com)
318
319 * i386/bsd386.h (ASM_COMMENT_START): Define.
320
d1485032
JM		 321Sat Oct 18 13:47:15 1997 Jason Merrill <jason@yorick.cygnus.com>
322
323 * tree.c (restore_tree_status): Also free up temporary storage
324 when we finish a toplevel function.
325 (dump_tree_statistics): Print stats for backend obstacks.
326
6bd35f86
DE		 327Sat Oct 18 12:47:31 1997 Doug Evans <dje@canuck.cygnus.com>
328
329 * expr.c (use_group_regs): Don't call use_reg for MEMs.
330
d1485032
JM		 331Sat Oct 18 09:49:46 1997 Jason Merrill <jason@yorick.cygnus.com>
332
333 * libgcc2.c (__throw): Don't copy the return address.
334 * dwarf2out.c (expand_builtin_dwarf_reg_size): Ignore return address.
335
336 * except.c (exceptions_via_longjmp): Initialize to 2 (uninitialized).
337 * toplev.c (main): Initialize exceptions_via_longjmp.
338
339 * tree.c: Add extra_inline_obstacks.
340 (save_tree_status): Use it.
341 (restore_tree_status): If this is a toplevel inline obstack and we
342 didn't want to save anything on it, recycle it.
343 (print_inline_obstack_statistics): New fn.
344 * function.c (pop_function_context_from): Pass context to
345 restore_tree_status.
346 * obstack.h (obstack_empty_p): New macro.
347
6981eacf
JL		 348Sat Oct 18 00:43:59 1997 Jeffrey A Law (law@cygnus.com)
349
350 * i386/freebsd.h (ASM_COMMENT_START): Fix.
351
1933ec7e
JW		 352Fri Oct 17 23:48:52 1997 Jim Wilson (wilson@cygnus.com)
353
354 * v850.c (ep_memory_offset): New function.
355 (ep_memory_operand, substitute_ep_register, v850_reorg): Call it.
356
357 * v850.h (CONST_OK_FOR_*): Add and correct comments.
358 (CONSTANT_ADDRESS_P): Add comment.
359 (EXTRA_CONSTRAINT): Define 'U'.
360 * v850.md: Add comments on bit field instructions.
361 (addsi3): Delete &r/r/r alternative. Add r/r/U alternative.
362 (lshrsi3): Use N not J constraint.
363
364 * v850.md (v850_tst1+1): New define_split for tst1 instruction.
365
366 * v850.c (reg_or_0_operand): Call register_operand.
367 (reg_or_int5_operand): Likewise.
368 * v850.h (MASK_BIG_SWITCH, TARGET_BIG_SWITCH): New macros.
369 (TARGET_SWITCHES): Add "big-switch".
370 (ASM_OUTPUT_ADDR_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT, CASE_VECTOR_MODE,
371 ASM_OUTPUT_BEFORE_BASE_LABEL): Add support for TARGET_BIG_SWITCH.
372 (CASE_DROPS_THROUGH): Comment out.
373 (CASE_VECTOR_PC_RELATIVE, JUMP_TABLES_IN_TEXT_SECTION): Define.
374 * v850.md (cmpsi): Delete compare mode.
375 (casesi): New pattern.
376
377 * v850.h (CONST_OK_FOR_N): Delete redundant compare against zero.
378 * v850.md (ashlsi3): Use SImode not QImode for shift count.
379 (lshrsi3): Likewise.
380
381 * v850.c (print_operand): Add 'c', 'C', and 'z' support. Delete
382 unreachable switch statement after 'b' support. Remove "b" from
383 strings for 'b' support.
384 * v850.md (branch_normal, branch_invert): Change %b to b%b.
385
13c2de98
JL		 386Fri Oct 17 23:33:20 1997 Jeffrey A Law (law@cygnus.com)
387
388 * Makefile.in (LIBGCC2_CFLAGS): Avoid a backslash then an
389 empty line if @inhibit_libc@ is empty.
390
b2167bee
RL		 391Fri Oct 17 23:24:40 1997 Robert Lipe (robertl@dgii.com)
392
393 * i386/sco5.h: Let ELF use dwarf2 unwinding. COFF uses sjlj.
394 (EH_FRAME_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP_ELF): Defined.
395 (EH_FRAME_SECTION_ASM_OP_COFF): Likewise.
396 (DWARF2_UNWIND_INFO): Let this track object file format.
397 (EXTRA_SECTIONS): Add in_eh.
398 (EH_FRAME_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP_ELF): Define.
399 (EH_FRAME_SECTION_ASM_OP_COFF): Likewise.
400
bf2a2c6b
DM		 401Fri Oct 17 17:13:42 1997 David S. Miller <davem@tanya.rutgers.edu>
402
403 * sparc/linux64.h (LINK_SPEC): Dynamic linker is ld-linux64.so.2.
da2a90f7
DM		 404 * sparc/sparc.h (FUNCTION_PROFILER): Fix format string when
405 TARGET_MEDANY.
f4f8e370
DE		 406 * sparc/sparc.c (dwarf2out_cfi_label): Extern no longer needed.
407 (output_double_int): Output DI mode values correctly when
408 HOST_BITS_PER_WIDE_INT is 64.
9d162eb2
DE		 409 (output_fp_move_quad): If TARGET_V9 and not TARGET_HARD_QUAD, use
410 fmovd so it works if a quad float ends up in one of the upper 32
411 float regs.
7e37212e
DM		 412 * sparc/sparc.md (pic_{lo_sum,sethi}_di): New patterns
413 necessary for PIC support on sparc64.
bf2a2c6b 414
9ff84e67
DE		 415Fri Oct 17 13:39:56 1997 Doug Evans <dje@canuck.cygnus.com>
416
417 * sparc/sp64-elf.h (TARGET_DEFAULT): Delete MASK_STACK_BIAS.
418 * sparc/sparc.h (PROMOTE_MODE): Promote small ints if arch64.
419 (PROMOTE_FUNCTION_ARGS,PROMOTE_FUNCTION_RETURN): Define.
420 (SPARC_FIRST_FP_REG, SPARC_FP_REG_P): New macros.
421 (SPARC_{OUTGOING,INCOMING}_INT_ARG_FIRST): New macros.
422 (SPARC_FP_ARG_FIRST): New macro.
423 (CONDITIONAL_REGISTER_USAGE): All v9 fp regs are volatile now.
424 (REG_ALLOC_ORDER,REG_LEAF_ALLOC_ORDER): Reorganize fp regs.
425 (NPARM_REGS): There are 32 fp argument registers now.
426 (FUNCTION_ARG_REGNO_P): Likewise.
427 (FIRST_PARM_OFFSET): Update to new v9 abi.
428 (REG_PARM_STACK_SPACE): Define for arch64.
429 (enum sparc_arg_class): Delete.
430 (sparc_arg_count,sparc_n_named_args): Delete.
431 (struct sparc_args): Redefine and use for arch32 as well as arch64.
432 (GET_SPARC_ARG_CLASS,ROUND_REG,ROUND_ADVANCE): Delete.
433 (FUNCTION_ARG_ADVANCE): Rewrite.
434 (FUNCTION_ARG,FUNCTION_INCOMING_ARG): Rewrite.
435 (FUNCTION_ARG_{PARTIAL_NREGS,PASS_BY_REFERENCE}): Rewrite.
436 (FUNCTION_ARG_CALLEE_COPIES): Delete.
437 (FUNCTION_ARG_{PADDING,BOUNDARY}): Define.
438 (STRICT_ARGUMENT_NAMING): Define.
439 (doublemove_string): Declare.
440 * sparc/sparc.c (sparc_arg_count,sparc_n_named_args): Delete.
441 (single_move_string): Use GEN_INT, and HOST_WIDE_INT.
442 (doublemove_string): New function.
443 (output_move_quad): Clean up some of the arch64 support.
444 (compute_frame_size): Add REG_PARM_STACK_SPACE if arch64.
445 Don't add 8 bytes of reserved space if arch64.
446 (sparc_builtin_saveregs): Combine arch32/arch64 versions.
447 (init_cumulative_args): New function.
448 (function_arg_slotno): New static function.
449 (function_arg,function_arg_partial_nregs): New functions.
450 (function_arg_{pass_by_reference,advance}): New functions.
451 (function_arg_padding): New function.
c1215820 452 * ginclude/va-sparc.h: Rewrite v9 support.
9ff84e67 453
b8fb2d72
CI		 454Fri Oct 17 12:29:48 1997 Christian Iseli <Christian.Iseli@lslsun.epfl.ch>
455
f22376c7
CI		 456 * regclass.c (record_address_regs): Look at REG_OK_FOR_{BASE,INDEX}_P
457 for hard regs to determine base and index registers.
458
b8fb2d72
CI		 459 * reload.c (debug_reload_to_stream): New function. Specify stream
460 into which to write debug info.
461 (debug_reload): Modify to call debug_reload_to_stream with stderr.
462
b79ee7eb
RH		 463Thu Oct 16 15:07:51 1997 Richard Henderson <rth@cygnus.com>
464
465 * combine.c (can_combine_p): Don't combine with an asm whose
466 output is a hard register.
467
5c19a356
MS		 468Thu Oct 16 15:43:26 1997 Mike Stump (mrs@wrs.com)
469
470 * c-decl.c (start_struct): Ensure that structs with forward
471 declarations are in fact packed when -fpack-struct is given.
472
473 * stor-layout.c (layout_record): Ignore STRUCTURE_SIZE_BOUNDARY if
474 we are packing a structure. This allows a structure with only
475 bytes to be aligned on a byte boundary and have no padding on a
476 m68k.
477
02bef6da
RK		 478Thu Oct 16 15:17:54 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
479
480 * rs6000.h (ROUND_TYPE_ALIGN): Don't blow up if no fields in record.
481
9ecc37f0
RH		 482Thu Oct 16 11:20:30 1997 Richard Henderson <rth@cygnus.com>
483
484 * alpha.c (alpha_return_addr_rtx): New variable.
485 (alpha_save_machine_status): New; save it.
486 (alpha_restore_machine_status): New; restore it.
487 (alpha_init_expanders): New; clear it.
488 (alpha_return_addr): New; set it.
489 (alpha_ra_ever_killed): New; if alpha_return_addr_rtx, regs_ever_live
490 is overly conservative, so search the insns explicitly.
491 (alpha_sa_mask [VMS]): Check alpha_ra_ever_killed.
492 (alpha_sa_size [VMS && !VMS]): Likewise.
493 * alpha.h (RETURN_ADDR_RTX): Call alpha_return_addr.
494 (INIT_EXPANDERS): New definition.
495
496 * alpha.c: Move REG_PV, REG_RA somewhere more visible in the file.
497 (output_prolog [!VMS]): Use them.
498
499 * alpha.c (output_prolog [!VMS]): Move gp detection to ...
500 (alpha_does_function_need_gp): ... a new function. Refine the
501 CALL_INSN test to just TYPE_JSR.
502 * alpha.md (most call insns): Fix some jsr/ibr type transpositions.
503
bda2ffef
JL		 504Thu Oct 16 09:36:47 1997 Jeffrey A Law (law@cygnus.com)
505
506 * version.c: Bump for snapshot.
507
96b63cd7
RK		 508Wed Oct 15 21:38:18 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
509
510 * pa.c (move_operand): Respect -mdisable-indexing.
511 * pa.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.
512
f192bf8b
DE		 513Wed Oct 15 21:34:45 1997 David Edelsohn <edelsohn@mhpcc.edu>
514
515 * rs6000.md (udivsi3, divsi3): Split into MQ and non-MQ cases for
516 PPC601.
517 (umulsidi3,umulsi3_highpart): Ditto.
518 (smulsi3_highpart_no_mq): Add !TARGET_POWER.
519
2ea844d3
RH		 520Wed Oct 15 18:21:46 1997 Richard Henderson <rth@cygnus.com>
521
522 * alpha.c (final_prescan_insn): Gut, remove and transform to ...
523 (alpha_handle_trap_shadows): ... a new function. Handle the entire
524 function in one go. Emit RTL for trapb, instead of printf directly.
525 (alpha_reorg): New function. Call alpha_handle_trap_shadows.
526 (trap_pending): Kill global variable.
527 (output_epilog): Don't call final_prescan_insn.
528 (struct shadow_summary): Elide $31 and $f31; now it fits in a word.
529 * alpha.h (FINAL_PRESCAN_INSN): Remove.
530 (MACHINE_DEPENENT_REORG): Define.
531 * alpha.md (jsr patterns with trapb): Stupid and useless. Kill.
532 (trapb): New insn.
533
74835ed8
RH		 534Wed Oct 15 18:16:05 1997 Richard Henderson <rth@cygnus.com>
535
536 Tune Haifa scheduler for Alpha:
537 * alpha.h (ISSUE_RATE): Define.
538 * alpha.c (alpha_adjust_cost): Handle EV5 mult delay; don't apply
539 EV4 adjustments to EV5.
540 * alpha.md: Remove all scaling from function unit delays. Rework
541 EV5 function units to match the CPU.
542 (umuldi3_highpart): EV5 added the IMULH insn class.
543
cdc0de30
JL		 544Wed Oct 15 17:42:41 1997 Jeffrey A Law (law@cygnus.com)
545
546 * pa.c (following_call): Fail if the CALL_INSN is an indirect
547 call.
548
041c97f2
MM		 549Tue Oct 14 12:01:00 1997 Mark Mitchell <mmitchell@usa.net>
550
551 * cplus-dem.c (demangle_signature): Don't look for return types on
552 constructors. Handle member template constructors.
553
f0632762
JM		 554Tue Oct 14 11:30:29 1997 Jason Merrill <jason@yorick.cygnus.com>
555
556 * tree.c (expr_tree_cons, build_expr_list, expralloc): New fns.
22ef8a13 557 * tree.h: Declare them.
f0632762 558
dec88383
DE		 559Fri Oct 10 13:46:56 1997 Doug Evans <dje@canuck.cygnus.com>
560
561 * configure.in: Handle --with-newlib.
562 * Makefile.in (LIBGCC2_CFLAGS): Add @inhibit_libc@.
563
564 * sparc/t-sp64 (LIBGCC2_CFLAGS): Delete.
565
0e1f3f5e
JL		 566Wed Oct 8 14:37:44 1997 Jeffrey A Law (law@cygnus.com)
567
568 * config/ptx4.h: Fix typo.
569
12504ae0
JL		 570Wed Oct 8 08:57:20 1997 Jeffrey A Law (law@cygnus.com)
571
572 * version.c: Bump for snapshot.
573
5643c767
MH		 574Tue Oct 7 16:27:34 1997 Manfred Hollstein <manfred@s-direktnet.de>
575
576 * aclocal.m4: Substitute INSTALL.
577 * configure: Re-built.
578
aa0c1401
JL		 579Tue Oct 7 15:37:35 1997 Jeffrey A Law (law@cygnus.com)
580
f644bd14
JL		 581 * integrate.c (save_for_inline_copying): Avoid undefined pointer
582 operations.
583 (expand_inline_function): Likewise.
584
aa0c1401
JL		 585 * dwarf2out.c (output_call_frame_info): Reinstate last change
586 using flag_debug_asm check instead of flag_verbose_asm.
587
6c2df6c9
JW		 588Tue Oct 7 12:57:26 1997 Jim Wilson <wilson@cygnus.com>
589
590 * dwarf2out.c (output_call_frame_info): Remove last change.
591
13ab2b83
AS		 5921997-10-04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
593
594 * frame.c (__frame_state_for): Execute the FDE insns until the
595 current pc value is strictly bigger than the target pc value.
596
066c2fea
JM		 597Tue Oct 7 11:00:42 1997 Jason Merrill <jason@yorick.cygnus.com>
598
599 * regclass.c (init_reg_modes): If we can't find a mode for the
600 register, use the previous one.
601
2f308fec
RH		 602Tue Oct 7 10:55:34 1997 Richard Henderson <rth@cygnus.com>
603
604 * haifa-sched.c (print_block_visualization): Call fprintf directly,
605 don't sprintf through an alloca'ed buffer.
606
43984e29
TK		 607Tue Oct 7 10:52:29 1997 Thomas Koenig (ig25@rz.uni-karlsruhe.de)
608
609 * reload.c (decompose): Always initialize val.base.
610
e9e30253
MH		 611Tue Oct 7 10:19:26 1997 Manfred Hollstein (manfred@lts.sel.alcatel.de)
612
613 * m68k/mot3300.h (ASM_OUTPUT_ALIGN): Accept any alignment
614 instead of aborting.
615 * dwarf2out.c (output_call_frame_info): Call app_enable and
616 app_disable to let GNU as accept the generated comments.
617
496651db
MM		 618Tue Oct 7 11:41:21 1997 Michael Meissner <meissner@cygnus.com>
619
620 * tree.h (get_file_function_name): Add declaration.
621 * dwarf2out.c (output_call_frame_info): No need to cast
622 get_file_function_name call anymore.
623 * profile.c (toplevel): Remove get_file_function_name
624 declaration.
625 * c-lang.c (finish_file): Ditto.
626
e6347456
CS		 627Tue Oct 7 10:01:45 1997 Chip Salzenberg <chip@rio.atlantic.net>
628
629 * Makefile.in (program_transform_name): Let autoconf substitute
630 the correct value.
631
1447b516
JL		 632Tue Oct 7 09:54:35 1997 Jeffrey A Law (law@cygnus.com)
633
634 * haifa-sched.c (schedule_block): If the first real insn in a
635 block has any special notes attached to it, remove them.
636
1a42ead7
RH		 637Tue Oct 7 09:48:51 1997 Richard Henderson <rth@cygnus.com>
638
639 * alpha.h (FLOAT_STORE_FLAG_VALUE): It's 2.0 not 0.5.
640
4b6140f1
MH		 641Mon Oct 6 12:47:32 1997 Manfred Hollstein (manfred@lts.sel.alcatel.de)
642
643 * m88k.c (m88k_begin_prologue): Remove superfluous backslash.
644
dc84d7bc
JL		 645Mon Oct 6 12:04:24 1997 Jeffrey A Law (law@cygnus.com)
646
647 * Makefile.in (check-g77): New test target.
648 (CHECK-TARGETS): Add check-g77.
649
c0da11c4
JM		 650Fri Oct 3 11:56:36 1997 Jason Merrill <jason@yorick.cygnus.com>
651
652 * toplev.c (rest_of_compilation): Defer all non-nested inlines.
653
d8d64559
MM		 654Fri Oct 3 15:49:27 1997 Michael Meissner <meissner@cygnus.com>
655
656 * flow.c (print_rtl_with_bb): Cast alloca return value for
657 in_bb_p.
658
e414ab29
RH		 659Thu Oct 2 21:15:03 1997 Richard Henderson <rth@cygnus.com>
660
661 * i386.h (RETURN_ADDR_RTX): New definition that works for
662 __builtin_return_address(0) and -fomit-frame-pointer.
663
15039abe
JW		 664Wed Oct 1 13:43:53 1997 Jim Wilson <wilson@cygnus.com>
665
666 Bring over from FSF.
667 Tue Aug 5 16:10:45 1997 Jason Merrill <jason@yorick.cygnus.com>
668
669 * mips.c (function_arg): Handle passing a struct
670 containing a double in a DFmode register without the PARALLEL.
671
281de624
ILT		 672Wed Oct 1 11:13:25 1997 Ian Lance Taylor <ian@cygnus.com>
673
d8d64559 674 * pexecute.c: Use spawn if __CYGWIN32__.
281de624 675
d8d64559 676 * pexecute.c: Include "config.h" first, as per autoconf manual
281de624
ILT		 677 (from Paul Eggert <eggert@twinsun.com>).
678
3cbdd5fc
PDM		 679Wed Oct 1 01:44:36 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
680
681 * m68k/x-mot3300 (XCFLAGS): Disable as's long/short jump
682 optimisation for f/expr.o and f/stb.o.
683
135d84b8
JL		 684Tue Sep 30 23:48:57 1997 Jeffrey A Law (law@cygnus.com)
685
686 * cse.c (this_insn_cc0_mode): Initialize.
687
55d89719
TK		 688Tue Sep 30 23:09:40 1997 Thomas Koenig <ig25@mvmap66.ciw.uni-karlsruhe.de>
689
d3878e49
TK		 690 * cccp.c (expand_to_temp_buffer): Initialize all members of obuf.
691
692 * haifa-sched.c (get_block_head_tail): Remove unneeded initialization.
55d89719 693
e9d0757e
RH		 694Tue Sep 30 23:06:43 1997 Richard Henderson <rth@cygnus.com>
695
696 * alpha.md (beq): For registers and ints 0-255, use cmpeq+bne, since
697 that pair will dual-issue on the 21164 and plus+beq won't.
698 (bne): Likewise for cmpeq+beq.
699
3f34faec
JW		 700Tue Sep 30 16:07:58 1997 Jim Wilson <wilson@cygnus.com>
701
702 * except.c (find_exception_handler_labels): Correct argument to free.
703
3226dac5 704Tue Sep 30 11:00:00 1997 Brendan Kehoe <brendan@lisa.cygnus.com>
988cea7d
BK		 705
706 * except.c (find_exception_handler_labels): Free LABELS when we're
707 done.
708
3a6eabfa
JL		 709Mon Sep 29 14:04:35 1997 Jeffrey A Law (law@cygnus.com)
710
711 * version.c: Bump for snapshot.
712
974c50f9
JM		 713Mon Sep 29 10:51:53 1997 Jason Merrill <jason@yorick.cygnus.com>
714
715 * flow.c (find_basic_blocks): Mark calls as potentially jumping
716 to the EH labels.
717
9b16d2c4
JL		 718Mon Sep 29 09:58:06 1997 Jeffrey A Law (law@cygnus.com)
719
720 * configure.in: Substitute for "install" too.
721 * configure: Rebuilt.
722
b1e3ddfd
AJ		 723Mon Sep 29 00:38:42 1997 Aaron Jackson <jackson@negril.msrce.howard.edu>
724
725 * Makefile.in (bootstrap-lean, compare-lean): New targets.
726
6662a38d
RH		 727Mon Sep 29 00:18:16 1997 Richard Henderson (rth@cygnus.com)
728
c02f035f
RH		 729 * alias.c (base_alias_check): Two symbols can conflict if they
730 are accessed via AND.
731 (memrefs_conflict_p): Likewise.
732
7a14fdc5
RH		 733 * alpha.h (SETUP_INCOMING_VARARGS): Emit a blockage insn
734 after flushing argument registers to the stack.
735
6662a38d
RH		 736 * Makefile.in (mostlyclean): Remove .regmove files.
737
f3447109
JM		 738Sun Sep 28 18:59:58 1997 Jason Merrill <jason@yorick.cygnus.com>
739
740 * libgcc2.c (__throw): Fix thinko.
741
37f6b6bf
MM		 742Sun Sep 28 12:00:52 1997 Mark Mitchell <mmitchell@usa.net>
743
744 * cplus-dem.c (demangle_template): Add new parameter. Handle new
745 template-function mangling.
746 (consume_count_with_underscores): New function.
747 (demangle_signature): Handle new name-mangling scheme.
748
adfc539e
PDM		 749Sun Sep 28 01:55:04 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
750
751 * flow.c (print_rtl_with_bb): Cast alloca return values for variables
752 start and end.
753
92cbe4d2
JL		 754Sun Sep 28 01:05:16 1997 Jeffrey A Law (law@cygnus.com)
755
756 * frame.c: Remove last change.
757 * dwarf2.h: Remove last change.
758 * tree.h: Add declarations of DWARF2 unwind info support
759 functions.
760
2f3ca9e7
JM		 761Sat Sep 27 11:02:38 1997 Jason Merrill <jason@yorick.cygnus.com>
762
763 * c-decl.c (init_decl_processing): Add __builtin_dwarf_reg_size.
764 * tree.h (built_in_function): Likewise.
765 * expr.c (expand_builtin): Likewise.
766 * except.h: Likewise.
767 * dwarf2out.c (expand_builtin_dwarf_reg_size): New fn.
768 * libgcc2.c (copy_reg): New fn.
769 (__throw): Use it.
770
407cb092
PE		 771Fri Sep 26 08:54:59 1997 Paul Eggert <eggert@twinsun.com>
772
773 * c-typeck.c (build_binary_op): Warn about comparing signed vs
774 unsigned if -W is specified and -Wno-sign-compare is not.
775 * c-decl.c (warn_sign_compare): Initialize to -1.
776 (c_decode_option): -Wall no longer implies -Wsign-compare.
777
3ba10494
AS		 778Fri Sep 26 09:00:13 1997 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
779
a7cc7f29
AS		 780 * frame.c: Include gansidecl.h for PROTO.
781 * dwarf2out.c: Move inclusion of dwarf2.h down so that PROTO is
782 defined. Don't declare dwarf2out_cfi_label here.
783 * dwarf2.h: Add declarations of DWARF2 unwind info support
784 functions.
785 * m68k.c: Include dwarf2.h.
786 (output_function_prologue): Add dwarf2 support.
787 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM): New macros.
788 (INCOMING_FRAME_SP_OFFSET): Likewise.
789
3ba10494
AS		 790 * integrate.c (expand_inline_function): Make sure there is at
791 least one insn that can be used as an insertion point.
792
c5cec899
JM		 793Wed Sep 24 21:34:06 1997 Jason Merrill <jason@yorick.cygnus.com>
794
795 * dwarf2out.c: s/flag_verbose_asm/flag_debug_asm/
796
e166cb18
JL		 797Wed Sep 24 22:05:30 1997 Jeffrey A Law (law@cygnus.com)
798
799 * version.c: Bump for snapshot.
800
01a94cba
DE		 801Wed Sep 24 17:36:23 1997 Doug Evans <dje@canuck.cygnus.com>
802
803 Bring over from FSF.
804
805 Wed Sep 24 19:17:08 1997 Doug Evans <dje@cygnus.com>
806
807 * sparc/sparc.md (get_pc_via_call): Renamed from get_pc_sp32.
808 (get_pc_via_rdpc): Renamed from get_pc_sp64.
809 * sparc/sparc.c (finalize_pic): Update call to gen_get_pc_via_call.
810
811 Wed Sep 24 18:38:22 1997 David S. Miller <davem@tanya.rutgers.edu>
812
813 * sparc/sparc.h (ASM_CPU_SPEC): Pass -Av9a for v8plus, ultrasparc.
814 (TARGET_OPTIONS): Add -malign-loops=, -malign-jumps=,
815 -malign-functions=.
816 (sparc_align_{loops,jumps,funcs}_string): Declare.
817 (sparc_align_{loops,jumps,funcs}): Declare.
818 (DEFAULT_SPARC_ALIGN_FUNCS): New macro.
819 (FUNCTION_BOUNDARY): Use sparc_align_funcs.
820 (STACK_BIAS): Define.
821 (SPARC_SIMM*_P): Cast to unsigned HOST_WIDE_INT first, then perform
822 test.
823 (SPARC_SETHI_P): New macro.
824 (CONST_OK_FOR_LETTER_P): Use it.
825 (ASM_OUTPUT_ALIGN_CODE): Define.
826 (ASM_OUTPUT_LOOP_ALIGN): Define.
827 * sparc/sparc.c (sparc_align_{loops,jumps,funcs}_string): New globals.
828 (sparc_align_{loops,jumps,funcs}): New globals.
829 (sparc_override_options): Handle -malign-loops=, -malign-jumps=,
830 -malign-functions=.
831 (move_operand): Use SPARC_SETHI_P.
832 (arith_double_operand): Cast to unsigned HOST_WIDE_INT first, then
833 perform test.
834 (arith11_double_operand): Likewise.
835 (arith10_double_operand): Likewise.
836 (finalize_pic): Finish sparc64 support.
837 (emit_move_sequence): Use SPARC_SETHI_P. Simplify low part of
838 64 bit constants if able.
839 (output_fp_move_quad): Don't use fmovq unless TARGET_HARD_QUAD.
840 (sparc_builtin_saveregs, sparc64 case): Don't save fp regs if
841 ! TARGET_FPU.
842 * sparc/sparc.md (*): Use GEN_INT instead of gen_rtx.
843 (get_pc_sp32): Use for sparc64 as well.
844 (lo_sum_di_sp{32,64}): Fix handling on 64 bit hosts.
845 (sethi_di_sp64_const): Likewise.
846 (movtf_cc_sp64): Check TARGET_HARD_QUAD.
847 (cmp_zero_extract_sp64): Use unsigned HOST_WIDE_INT in cast.
848 (ashlsi3, ashldi3, ashrsi3, ashrdi3, lshrsi3, lshrdi3): Likewise.
849
850 Tue Sep 23 19:02:46 1997 Doug Evans <dje@cygnus.com>
851
852 * sparc/linux-aout.h (COMMENT_BEGIN): Delete.
853 * sparc/linux.h (COMMENT_BEGIN): Likewise.
854 * sparc/linux64.h (COMMENT_BEGIN): Likewise.
855
856 Tue Sep 23 14:48:18 1997 David S. Miller <davem@tanya.rutgers.edu>
857
858 Add sparc64 linux support.
859 * configure.in (sparc64-*-linux*): Recognize. Add sparc/xm-sparc.h
860 to xm_file list on 32-bit sparc-linux.
861 * sparc/xm-sp64.h: New file.
862 * sparc/linux64.h: New file.
863 * sparc/xm-linux.h: Include some standard headers if not inhibit_libc.
864 Don't include xm-sparc.h.
865 * config/xm-linux.h (HAVE_PUTENV, HAVE_ATEXIT): Define.
866 * glimits.h (LONG_MAX): Handle sparc64.
867
868 Sat Sep 20 03:07:54 1997 Doug Evans <dje@cygnus.com>
869
870 * sparc/sysv4.h (ASM_COMMENT_START): Delete.
871 * sparc.h (ASM_COMMENT_START): Define.
872 * sparc.c (output_function_prologue): Use it.
873 (sparc_flat_output_function_{epi,pro}logue): Likewise.
874
875 Wed Sep 17 15:04:19 1997 Doug Evans <dje@cygnus.com>
876
877 * sparc/sysv4.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Delete,
878 use sparc.h's copies.
879 * sparc/sparc.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Print
880 ascii form as well.
881
882 Mon Sep 8 08:45:19 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
883
884 * sparc.c (dwarf2out_cfi_label): Add declaration.
885 (save_regs, output_function_prologue): Remove cast for it.
886 (sparc_flat_{save_restore,output_function_prologue): Likewise.
887 ({save,restore}_regs): No longer inline.
888
ce2157a1
JL		 889Tue Sep 23 12:34:51 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
890
891 * fold-const.c (make_range): Correctly handle cases of converting
892 from unsigned to signed type.
893
894Tue Sep 23 12:34:51 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
895
896 * fold-const.c (merge_ranges): Make sure that if one range is subset
897 of another, it will always be the second range. Correct (+,-) case to
898 account for this.
899
c5cec899
JM		 900Tue Sep 23 08:32:51 1997 Jason Merrill <jason@yorick.cygnus.com>
901
902 * final.c (final_end_function): Also do dwarf2 thing if
903 DWARF2_DEBUGGING_INFO.
904 (final_start_function): Likewise.
905
c107334d
DM		 906Tue Sep 23 01:15:50 1997 David S. Miller <davem@tanya.rutgers.edu>
907
e13a25d5
DM		 908 * expmed.c (expand_divmod): If compute_mode is not the same as
909 mode, handle the case where convert_modes() causes op1 to no
910 longer be a CONST_INT.
911
c107334d
DM		 912 * reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
913 note holding get_jump_flags() calculation to all JUMP_INSNs.
914 * rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.
915 * rtl.c (reg_note_name): Add new note types.
916
8d7532d9
JL		 917Tue Sep 23 00:59:54 1997 Jeffrey A Law (law@cygnus.com)
918
0774afd7 919 * rtlanal.c (computed_jump_p): Fix typo in last change.
8d7532d9 920
7019d00e
L		 921Tue Sep 23 00:42:44 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
922
923 * loop.c (indirect_jump_in_function_p): Return 0
924 by default.
925
b9dfb357
JL		 926Tue Sep 23 00:33:55 1997 Jeffrey A Law (law@cygnus.com)
927
928 * rs6000/xm-rs6000.h: Fix thinko in last change.
929 * rs6000/xm-sysv4.h: Likewise.
930
4b7e467b
JW		 931Mon Sep 22 19:33:53 1997 Jim Wilson <wilson@cygnus.com>
932
933 * mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.
934
8c8e6faa
JL		 935Mon Sep 22 14:41:00 1997 Jeffrey A Law (law@cygnus.com)
936
937 * reg-stack.c (find_blocks): Fix thinko in last change.
938
078e983e
AS		 9391997-09-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
940
941 * m68k.c (output_function_prologue): Add dwarf2 support.
942
943 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM,
944 INCOMING_FRAME_SP_OFFSET): New definitions.
945
d7027667
DM		 946Mon Sep 22 11:36:42 1997 David S. Miller <davem@tanya.rutgers.edu>
947
9524f769
DM		 948 * combine.c (try_combine): Use NULL_RTX instead of '0' where
949 appropriate in calls to gen_rtx().
950 * cse.c (cse_main): Likewise.
951 * emit-rtl.c (gen_label_rtx): Likewise.
952 * expr.c (init_expr_once): Likewise.
953 * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
954 sched_analyze, init_rgn_data_dependences,
955 compute_block_backward_dependences): Likewise.
956 * sched.c (schedule_insns): Likewise.
957 * varasm.c (immed_double_const): Likewise.
958
d7027667
DM		 959 * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
960 SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
961
fbf8b71c
KJ		 962Mon Sep 22 11:21:33 1997 J. Kean Johnston <jkj@sco.com>
963
964 * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
965 (MULTILIB_DEFAULTS): Define.
966 (ASM_SPEC, CPP_SPEC): Handle -mcoff.
967 (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
968 (LIBGCC_SPEC): Likewise.
969 (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
970 (SUBTARGET_SWITCHES): Add -mcoff and -melf.
971 * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
972 (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
973 (EXTRA_PARTS, TAROUTOPTS): Delete.
974 (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
975 (MULTILIB_OPTIONS): Define.
976 (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
977 (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
978
c14a951f
JL		 979Mon Sep 22 02:10:43 1997 Jeffrey A Law (law@cygnus.com)
980
981 * version.c: Bump for snapshot.
982
7014927a
JL		 983Sun Sep 21 17:45:45 1997 Jeffrey A Law (law@cygnus.com)
984
37aa45a2
JL		 985 * loop.c (loop_number): Delete function. Change all references
986 to use uid_loop_num array.
987 * loop.h (loop_number): Delete declaration.
988 * unroll.c (unroll_loop): Change "loop_number" references to
989 use uid_loop_num instead.
990
b47404d1
JL		 991 * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
992 conditional.
993 (loop_unroll_iter): Remove unused variable and all references.
994 (loop_optimize): Always allocate and clear space for loop_unroll_factor.
995 (insert_bct): Fix minor formatting problems.
996 * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
997 (loop_unroll_iter): Removed unused decl.
998 * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
999 Always record the unrolling factor.
1000
cb3bb2a7
JL		 1001 * cse.c (simplify_relational_operation): Set h0u just like h0s.
1002 Similarly for h1u and h1s.
1003
d5ff3a2e 1004 * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
2a1777af
JL		 1005 (find_basic_blocks): Use computed_jump_p to determine if a
1006 particular JUMP_INSN is a computed jump.
1007 * reg-stack.c (find_blocks): Use computed_jump_p to determine
1008 if a particular JUMP_INSN is a computed jump.
1009 * rtlanal.c (jmp_uses_reg_or_mem): New function.
1010 (computed_jump_p): Likewise.
1011 * rtl.h (computed_jump_p): Declare.
1012 * genattrtab.c (pc_rtx): Define and initialize.
1013 * loop.c (loop_optimize): Always determine if the current
1014 function has a computed jump.
1015 (indirect_jump_in_function_p): Use computed_jump_p to determine
1016 if a particular JUMP_INSN is a computed jump.
1017
7014927a
JL		 1018 * loop.c (fix_bct_param): Delete unused function.
1019 (check_bct_param): Likewise.
1020
6d53d7c2
JM		 1021Sat Sep 20 16:22:06 1997 Jason Merrill <jason@yorick.cygnus.com>
1022
1023 * frame.c (__deregister_frame): Check properly for initialized object.
1024
5a5e9503 1025Fri Sep 19 20:51:03 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
71e4fbe6
L		 1026
1027 * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
1028
272299b9
R		 1029Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1030
cc5e1642
R		 1031 * jump.c (thread_jumps): check can_reverse_comparison_p before
1032 threading a reversed-condition jump.
1033
272299b9
R		 1034 * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
1035 * haifa-sched.c (update_flow_info): Likewise.
1036
18511014
JL		 1037Thu Sep 18 21:13:40 1997 Jeffrey A Law (law@cygnus.com)
1038
e6493727
JL		 1039 * Makefile.in (BOOT_CFLAGS): Use -O2.
1040
1e467e19
JL		 1041 * configure.in (strtoul, bsearch): Have autoconf check for these
1042 functions.
1043 * configure, config.in: Rebuilt.
1044
18511014
JL		 1045 * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
1046 * mips/mips.h (alloca): Likewise.
1047 * rs6000/xm-rs6000.h (alloca): Likewise.
1048 * rs6000/xm-sysv4.h: Likewise.
1049
6020d360
JM		 1050Thu Sep 18 14:22:22 1997 Jason Merrill <jason@yorick.cygnus.com>
1051
1052 * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
1053 * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
1054 (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
1055
1056 * except.c (end_eh_unwinder): Subtract 1 from return address.
1057 * libgcc2.c (__throw): Likewise.
1058 (find_exception_handler): Don't change PC here. Compare end with >.
1059
b24bcfb3
NC		 1060Thu Sep 18 10:43:07 1997 Nick Clifton <nickc@cygnus.com>
1061
1062 * v850.c (compute_register_save_size): Correct register
1063 number.
1064 * v850.md (save_interrupt, return_interrupt): Correct
1065 register number.
1066 * v850/lib1funcs.asm (save_interrupt): Correct register number.
1067 (return_interrupt): Use stack pointer, not element pointer.
1068
93cf819d
BK		 10691997-09-18 Brendan Kehoe <brendan@lisa.cygnus.com>
1070
1071 * configure.in, configure: Make sure to create the stage* and include
1072 symbolic links in each subdirectory.
1073
f0501149
JL		 1074Thu Sep 18 01:47:06 1997 Jeffrey A Law (law@cygnus.com)
1075
1076 * pa.md (reload_peepholes): Don't allow addresses with side
1077 effects for the memory operand.
1078
4f870c04
JM		 1079Wed Sep 17 18:19:53 1997 Jason Merrill <jason@yorick.cygnus.com>
1080
1081 * libgcc2.c (find_exception_handler): Subtract one from our PC when
1082 looking for a handler, to avoid hitting the beginning of the next
1083 region.
1084
1085 * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
1086
4eb66248
JL		 1087Wed Sep 17 18:33:59 1997 Jeffrey A Law (law@cygnus.com)
1088
1089 * mips/abi64.h (LONG_MAX_SPEC): Define.
1090 * mips.h (LONG_MAX_SPEC): Define.
1091 (CPP_SPEC): Include long_max_spec.
1092 (EXTRA_SPECS): Include long_max_spec.
1093
44158507
JL		 1094Wed Sep 17 14:11:38 1997 Jeffrey A Law (law@cygnus.com)
1095
1096 * v850.c (construct_save_jarl): Fix thinko in last change.
1097
bf520cd9
JL		 1098Wed Sep 17 09:53:07 1997 Jeffrey A Law (law@cygnus.com)
1099
1100 * version.c: Bump for snapshot.
1101
255fe733
JM		 1102Tue Sep 16 14:22:36 1997 Jason Merrill <jason@yorick.cygnus.com>
1103
c0727e2a
JM		 1104 * libgcc2.c (find_exception_handler): Not found is -1.
1105
255fe733
JM		 1106 * integrate.c (expand_inline_function): Move expand_start_bindings
1107 after expanding the arguments.
1108
21002281
JW		 1109Tue Sep 16 11:13:46 1997 Jim Wilson <wilson@cygnus.com>
1110
1111 * expr.c (expand_expr): Remove previous incorrect change.
1112 If target and slot has no DECL_RTL, then call mark_addressable
1113 again for the slot after we give it RTL.
1114
e693cc28 1115Tue Sep 16 09:18:52 1997 Jason Merrill (jason@cygnus.com)
f633220c 1116
e693cc28
UD		 1117 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1118 again for the slot after we give it RTL.
f633220c 1119
145870b5
NC		 1120Tue Sep 16 00:13:20 1997 Nick Clifton <nickc@cygnus.com>
1121
84e75068 1122 * v850.c (register_is_ok_for_epilogue,
145870b5
NC		 1123 pattern_is_ok_for_epilogue, construct_restore_jr,
1124 pattern_is_ok_for_prologue, construct_save_jarl): New functions.
1125
84e75068 1126 * v850.h (pattern_is_ok_for_prologue,
145870b5
NC		 1127 pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
1128 predicates.
1129
84e75068 1130 * v850.md: Replace prologue and epilogue patterns with a
145870b5
NC		 1131 match_parallel pattern.
1132
76143254
JL		 1133Mon Sep 15 22:53:01 1997 Jeffrey A Law (law@cygnus.com)
1134
1135 * aclocal.m4: Add replacement for AC_PROG_INSTALL.
1136 * configure.in: Use EGCS_PROG_INSTALL.
1137
4401bf24
JL		 1138Mon Sep 15 22:40:55 1997 Jim Wilson (wilson@cygnus.com)
1139
1140 * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
1141 extern inline function.
1142
1143Mon Sep 15 22:40:55 1997 Richard Henderson (rth@cygnus.com)
1144
1145 * dwarf2out.c (reg_loc_descriptor): Fix prototype.
1146 (concat_loc_descriptor): New function.
1147 (loc_descriptor): Call it.
1148 (add_AT_location_description): Also elide the descriptor if both
1149 halves of a CONCAT are pseudos.
1150 (add_location_or_const_value_attribute): Recognize CONCAT too.
1151
0d24ff5d
RH		 1152Mon Sep 15 15:24:00 1997 Richard Henderson <rth@cygnus.com>
1153
4bb43724
RH		 1154 * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
1155
0d24ff5d
RH		 1156 * alpha/alpha.c (output_prolog): New variable sa_reg. Use it for
1157 out-or-range reg_offset.
1158 (output_epilog): Likewise.
1159
05ef8897
JL		 1160Mon Sep 15 15:39:26 1997 Jeffrey A Law (law@cygnus.com)
1161
1162 * cse.c (simplify_relational_operation): If MODE specifies a
1163 mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
1164 is derived from the sign bit of the low word.
1165
ca55abae
JM		 1166Mon Sep 15 11:43:38 1997 Jason Merrill <jason@yorick.cygnus.com>
1167
1168 Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
1169
1170 * dwarf2.h: Add DW_CFA_GNU_args_size.
1171 * frame.c (execute_cfa_insn): Likewise.
1172 * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
1173 (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
1174 (dwarf2out_frame_debug): If this isn't a prologue or epilogue
1175 insn, hand it off to dwarf2out_stack_adjust.
1176 (dwarf2out_begin_prologue): Initialize args_size.
1177 * frame.h (struct frame_state): Add args_size.
1178 * libgcc2.c (__throw): Use args_size.
1179 * final.c (final_scan_insn): If we push args, hand off all insns
1180 to dwarf2out_frame_debug.
1181 * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
1182
1183 * dwarf2out.c dwarf2out_frame_debug): Fix typo.
1184 Handle epilogue restore of SP from FP.
1185 * emit-rtl.c (gen_sequence): Still generate a sequence if the
1186 lone insn has RTX_FRAME_RELATED_P set.
1187
1188 * frame.c (extract_cie_info): Handle "e" augmentation.
1189 * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
1190 absence of UNALIGNED_*_ASM_OP.
1191 (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
1192 (output_call_frame_info): Use "e" instead of "z" for augmentation.
1193 Don't emit augmentation fields length.
1194 (dwarf2out_do_frame): Move outside of #ifdefs.
1195 * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
1196 opcodes.
1197
1198 * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
1199 * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
1200 * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
1201 * sparc/sun4gas.h: New file.
1202 * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
1203
1204 * collect2.c (write_c_file_stat, write_c_file_glob): Declare
1205 __register_frame_table and __deregister_frame.
1206
1d77fa53
BK		 12071997-09-15 Brendan Kehoe <brendan@cygnus.com>
1208
1209 * except.c (find_exception_handler_labels): Use xmalloc instead of
1210 alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
1211 in some cases.
1212
8be52aaa
JL		 1213Sun Sep 14 21:01:23 1997 Jeffrey A Law (law@cygnus.com)
1214
1215 * Makefile.in: Various changes to build info files
1216 in the object tree rather than the source tree.
1217
a3ee3246
JL		 1218Sun Sep 14 12:24:30 1997 Jeffrey A Law (law@cygnus.com)
1219
1220 * fixinc.math: New file to fix math.h on some systems.
1221 * configure.in (freebsd, netbsd): Use fixinc.math on these
1222 systems.
1223 * configure: Rebuilt.
1224
124da275
JL		 1225Sun Sep 14 11:11:05 1997 Jeffrey A Law (law@cygnus.com)
1226
1227 * regmove.c (regmove_optimize): If we end up moving the
1228 original insn due to lifetime overlaps, make sure to move
1229 REG_NOTES too.
1230
fca9d4b0
MH		 1231Sat Sep 13 15:51:11 1997 Manfred Hollstein <manfred@s-direktnet.de>
1232
1233 * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
1234
326ee7a3
JL		 1235Sat Sep 13 12:57:26 1997 Jeffrey A Law (law@cygnus.com)
1236
1237 * haifa-sched.c (add_branch_dependences): Make each insn in
1238 a SCHED_GROUP_P block explicitly depend on the previous insn.
1239
ca55abae
JM		 1240Fri Sep 12 13:49:58 1997 Jason Merrill <jason@yorick.cygnus.com>
1241
1242 * except.h: Prototype dwarf2 hooks.
1243 * expr.c: Adjust.
1244
5188d2b2
JW		 1245Thu Sep 11 17:43:55 1997 Jim Wilson <wilson@cygnus.com>
1246
1247 * configure.in (native_prefix): Delete.
1248 (mips-dec-netbsd): Don't set prefix.
1249 (*linux*): Don't set prefix.
1250
2e384318
FF		 1251Thu Sep 11 15:48:32 1997 Fred Fish <fnf@ninemoons.com>
1252
70988851
FF		 1253 * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
1254 defined. If not defined, include <sys/varargs.h> if
1255 HAVE_SYS_VARARGS_H is defined.
1256 * configure.in: Test for varargs.h and sys/varargs.h.
1257 * configure: Regenerate with autoconf.
1258 * config.in: Regenerate with autoheader.
1259
2e384318
FF		 1260 * cpplib.c (quote_string): Cast first arg of sprintf call
1261 from "unsigned char *" to "char *".
1262 (output_line_command): Ditto.
1263 (macroexpand): Ditto.
1264 (do_line): Cast atoi arg from "unsigned char *" to "char *".
1265
3fb2f401
JL		 1266Wed Sep 10 21:37:30 1997 Jeffrey A Law (law@cygnus.com)
1267
f2e4e16f
JL		 1268 * version.c: Bump for snapshot.
1269
3fb2f401
JL		 1270 * Makefile.in (compare): Exit with nonzero status if there
1271 are comparison failures. Note which files failed the
1272 comparison test in .bad_compare.
1273
d26cb668
L		 1274Wed Sep 10 17:05:46 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1275
1276 * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
1277
ac64120e
JW		 1278Wed Sep 10 16:37:28 1997 Fred Fish <fnf@ninemoons.com>
1279
1280 * Makefile.in (LN, LN_S): New macros, use where appropriate.
1281 * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
1282 * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
1283 * configure: Regenerated.
1284
1285Thu Sep 11 11:09:43 1997 Jeffrey A Law (law@cygnus.com)
1286
1287 * loop.c (strength_reduce): Fix typo.
1288
db87ec0b
JW		 1289Wed Sep 10 16:01:15 1997 Jim Wilson <wilson@cygnus.com>
1290
1291 * m88k/m88k.c (struct option): Rename to struct options.
1292 * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
1293 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
1294 * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
1295 __DOLPHIN__ or sysV88.
1296
04395f96
JW		 1297Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
1298
1299 * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
1300 create new subreg.
1301
becdcf6d
JL		 1302Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
1303
1304 * config.sub: Accept 'amigados' for backward compatability.
1305
04395f96 1306Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
3979dfb8
JW		 1307
1308 * Makefile.in (testsuite/site.exp): New target.
1309 (check-gcc, check-g++): Depend on testsuite/site.exp.
1310 Don't stop for failure.
1311
ca55abae
JM		 1312Wed Sep 10 12:59:57 1997 Jason Merrill <jason@yorick.cygnus.com>
1313
1314 * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
1315 if DWARF2_UNWIND_INFO.
1316
1317Wed Sep 10 11:49:20 1997 Jason Merrill <jason@yorick.cygnus.com>
1318
1319 Add support for exception handling using DWARF 2 frame unwind info.
1320 Currently works on SPARC and MIPS, and almost on x86.
1321
1322 * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
1323 next_stack_level, in_reg_window): Helper fns.
1324 (__throw): Implement for DWARF2_UNWIND_INFO.
1325
1326 * expr.c (expand_builtin): Handle builtins used by __throw.
1327 * tree.h (enum built_in_function): Add builtins used by __throw.
1328 * c-decl.c (init_decl_processing): Declare builtins used by __throw.
1329 * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
1330 * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
1331 (expand_builtin_extract_return_addr): Likewise.
1332 (expand_builtin_frob_return_addr): Likewise.
1333 (expand_builtin_set_return_addr_reg): Likewise.
1334 (expand_builtin_eh_stub): Likewise.
1335 (expand_builtin_set_eh_regs): Likewise.
1336 (eh_regs): Choose two call-clobbered registers for passing back values.
1337
1338 * frame.c, frame.h: New files for parsing dwarf 2 frame info.
1339 * Makefile.in (LIB2ADD): New variable. Add $(srcdir)/frame.c.
1340 (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
1341 (stmp-multilib): Likewise.
1342 ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
1343
1344 * except.c: #include "defaults.h".
1345 (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
1346 (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
1347 (register_exception_table_p): New fn.
1348 (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
1349 (end_eh_unwinder): Likewise.
1350
1351 * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
1352 call __register_frame and __deregister_frame as needed.
1353 * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
1354 * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro. Check
1355 EH_FRAME_SECTION_ASM_OP.
1356 * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
1357 * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
1358 (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
1359
1360 * dwarf2out.c (output_call_frame_info): If no support for
1361 EXCEPTION_SECTION, mark the start of the frame info with a
1362 collectable tag.
1363 * collect2.c (frame_tables): New list.
1364 (is_ctor_dtor): Recognise frame entries.
1365 (scan_prog_file): Likewise.
1366 (main): Pass -fno-exceptions to sub-compile. Also do collection
1367 if there are any frame entries.
1368 (write_c_file_stat): Call __register_frame_table and
1369 __deregister_frame as needed.
1370 (write_c_file_glob): Likewise.
1371
1372 * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
1373 Also require unaligned reloc support.
1374 * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
1375 UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
1376 * sparc/sysv4.h: Not here.
1377
1378 * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
1379 * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
1380 (dwarf2out_finish): Don't call dwarf2out_frame_finish.
1381
1382 * libgcc2.c (L_eh): Reorganize, moving code shared by different
1383 EH implementations to the top.
1384 (find_exception_handler): Split out. Start from 0. Compare against
1385 end with >=.
1386 (__find_first_exception_table_match): Use it.
1387 * except.c (output_exception_table): Don't do anything if there's
1388 no table. Don't output a first entry of zeroes.
1389 (eh_outer_context): Adjust properly.
1390 (add_eh_table_entry): Use xrealloc.
1391 * toplev.c (compile_file): Just call output_exception_table.
1392
1393Wed Sep 10 11:30:36 1997 Jason Merrill <jason@cygnus.com>
1394
1395 * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
1396
1397Wed Sep 10 08:17:10 1997 Torbjorn Granlund <tege@pdc.kth..se>
1398
1399 * except.c (eh_outer_context): Do masking using expand_and.
1400
b4d940a2
JL		 1401Wed Sep 10 01:38:30 1997 Doug Evans <dje@cygnus.com>
1402
1403 Add port done awhile ago for the ARC cpu.
1404 * arc/arc.h: New file.
1405 * arc/arc.c: New file.
1406 * arc/arc.md: New file.
1407 * arc/initfini.c: New file.
1408 * arc/lib1funcs.asm: New file.
1409 * arc/t-arc: New file.
1410 * arc/xm-arc.h: New file.
1411 * ginclude/va-arc.h: New file.
1412 * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
1413 * ginclude/varargs.h: Likewise.
1414 * Makefile.in (USER_H): Add va-arc.h.
1415 * configure.in (arc-*-elf*): Recognize.
1416 * longlong.h: Add ARC support.
1417
1418Wed Sep 10 01:32:54 1997 Jeffrey A Law (law@cygnus.com)
1419
1420 * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
1421 when clearing non-BLKmode data.
1422
10211581
JL		 1423Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
1424
9dfc6eba
MH		 1425 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
1426 * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
1427
55259219
MH		 1428 * xm-m88k.h (USG): Only define if it hasn't already been defined.
1429
1430 * Makefile.in (risky-stage1): Delete gratutious whitespace.
1431
ee291069
MH		 1432 * Makefile.in (clean): Delete libgcc1-test.
1433
10211581
JL		 1434 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
1435
1436Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
48f0be1b
SC		 1437
1438 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
1439 template.
1440
ca55abae
JM		 1441Tue Sep 9 09:50:02 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
1442
1443 * dwarf2out.c (output_call_frame_info): Call named_section.
1444
8f3d79e0
JL		 1445Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
1446
1447 * haifa-sched.c (print_value): Fix last change.
1448
ca55abae
JM		 1449Tue Sep 9 01:30:37 1997 Jason Merrill <jason@yorick.cygnus.com>
1450
1451 * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
1452 write_symbols.
1453
1454Mon Sep 8 16:32:43 1997 Jason Merrill <jason@yorick.cygnus.com>
1455
1456 * mips.c (function_prologue): Set up the CFA when ABI_32.
1457
1458 * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
1459 for dwarf2 unwind info.
1460 (output_function_prologue, sparc_flat_output_function_prologue): Same.
1461
1462 * final.c (final_end_function): Check dwarf2out_do_frame instead
1463 of DWARF2_DEBUG for dwarf2 unwind info.
1464 (final_scan_insn): Likewise.
1465 (final_start_function): Likewise. Initialize dwarf2 frame debug here.
1466 (final): Not here.
1467
1468 * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
1469 count > 0.
1470
1471 * varasm.c (exception_section): Check EXCEPTION_SECTION first.
1472
74aca74b
NC		 1473Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
1474
1475 * v850.h (ASM_SPEC): Pass on target processor.
1476 (CPP_PREDEFINES): Only define if not already specified.
1477 (TARGET_VERSION): Only define if not already specified.
1478 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
1479 processor.
1480 (EXTRA_SWITCHES): Extra entries in the switches array.
1481 (TARGET_DEFAULT): Set default target processor.
1482
c0b04148
JW		 1483Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
1484
1485 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
1486 cases, add %# and %/, and add : to make them into extended asms.
1487
52b7724b
WL		 1488Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
1489
1490 * alias.c (init_alias_analysis): Clean up incompatible pointer
1491 type warning in bzero.
1492 * regmove.c (regmove_optimize): Ditto.
1493 * haifa-sched.c (find_rgns): Ditto.
1494
1495 * haifa-sched.c (print_value): Clean up ptr->int cast
1496 warnings.
1497
0c82f6bf
FF		 1498Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
1499
1500 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
1501 * install.texi (Configurations): Ditto.
1502 * config.sub: Ditto.
1503
1fed1f51
WL		 1504Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
1505
1506 * Makefile.in (sdbout.o): Depend on insn-config.h.
1507
239e68f6
JW		 1508Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
1509
1510 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
1511 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
1512
267c09ab
JM		 1513Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
1514
1515 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
1516 prologue insn, only the first elt is significant.
1517 (output_call_frame_info): For exception handling, always use 4-byte
1518 fields as specified by the dwarf2 spec.
1519 Don't skip trivial FDEs.
1520
db7cafb0
JL		 1521Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
1522
1523 * version.c: Bump for snapshot.
1524
1525Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
1526
1527 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
1528 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
1529 when op1_is_pow2.
1530
1531Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
1532
bf520cd9
JL		 1533 * final.c (shorten_branches): During first pass, assume worst
1534 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
db7cafb0
JL		 1535
1536 * Makefile.in (distclean): Remove various things left around
1537 by running the testsuite.
1538
7ed46111
MH		 1539Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
1540
1541 * configure.in (out_file): Emit definition to config.status in order
1542 to have a defined value for configure.lang.
1543 * configure: Re-built.
1544
e41cea70
JJH		 1545Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
1546
bf520cd9 1547 * configure.in: Make symlink to as-new rather than as.new. Similarly
e41cea70
JJH		 1548 for ld-new.
1549 * configure: Rebuilt.
1550
1aeb1f6f
JW		 1551Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
1552
1553 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
1554
770a0113
CK		 1555Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
1556
1557 * sparc/sparc.md: Add ultrasparc scheduling support.
1558 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
1559
f5ffa999
PDM		 1560Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
1561
1562 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
1563 as initial value for real_label_map.
1564 (copy_for_inline): Likewise.
1565
acceac1a
R		 1566Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1567
1568 * sched.c (update_flow_info) When looking if to set found_split_dest
1569 or found_orig_dest, look at all parts of a PARALLEL.
1570 * haifa-sched.c (update_flow_info): Likewise.
1571
f84271d9
JL		 1572Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
1573
1574 * v850: New directory for v850 port.
1575 * v850/lib1funcs.asm: New file.
1576 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
1577 * ginclude/va-v850.h: New file.
1578 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
1579 * configure.in (mn10200-*-*): New target.
1580 * configure: Rebuilt.
1581 * config.sub: Handle v850-elf.
1582 * Makefile.in (USER_H): Add va-mn10200.h.
1583 * invoke.texi: Document v850 stuff.
1584
89cc6098
JW		 1585Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
1586
04940ba5
JW		 1587 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
1588 has integer TYPE_{MAX,MIN}_VALUE before using them.
1589
89cc6098
JW		 1590 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
1591 __HPUX_ASM__ versions.
1592
c74f7db8
JL		 1593Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
1594
bf520cd9 1595 * install.sh: Delete duplicate install script.
c74f7db8 1596
914ec131
SC		 1597Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
1598
1599 * reg-stack.c (subst_stack_regs): Pop the stack register for a
1600 computed goto which sets the same stack register.
1601
1602 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
1603 destination are both on the regstack.
1604 (subst_stack_regs_pat): Put the destination at the top of the regstack.
1605
c1090daa
JW		 1606Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
1607
d5d1738a
JW		 1608 * mips.md (nonlocal_goto_receiver): Define.
1609
f4da7881
JW		 1610 * profile.c (output_arc_profiler): Check next_insert_after for non
1611 NULL before deferencing it.
1612
c1090daa
JW		 1613 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
1614
da594c94
JL		 1615Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
1616
1617 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
1618
3e28fe44
MM		 1619Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
1620
1621 * toplev.c (rest_of_compilation): For passes starting with
1622 flow_analysis, use print_rtl_with_bb instead of print_rtl.
1623
1624 * print-rtl.c (print_rtl_single): Print a single rtl value to a
1625 file.
1626
1627 * flow.c (print_rtl_with_bb): Print which insns start and end
1628 basic blocks. For the start of a basic block, also print the live
1629 information.
1630
7053ca72
JW		 1631Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
1632
417b0fa2
JW		 1633 * toplev.c (main): Change #elif to #else/#ifdef
1634
7053ca72
JW		 1635 * tlink.c: Include ctype.h.
1636 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
1637
f05a8b25
MM		 1638Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
1639
1640 * bitmap.c: Conditionally include stdlib.h.
bf520cd9 1641 (free): Provide a declaration if NEED_DECLARATION_FREE.
f05a8b25 1642
02d7a569
JS		 1643Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
1644
1645 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
1646
6030b6af
JW		 1647Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
1648
1649 * profile.c (output_arc_profiler): Verify next_insert_after is an
1650 INSN before and after skipping a stack pop.
1651
04da53bd
R		 1652Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1653
1654 * final.c (shorten_branches): Don't count the lengths of deleted
1655 instructions.
1656
780532a4
JL		 1657Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
1658
1659 * version.c: Bump for snapshot.
1660
22fa5b8a
MM		 1661Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
1662
1663 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
1664 two bitmaps ANDed together.
1665 (bitmap_print): Declare.
1666
1667 * bitmap.c (function_obstack): Don't declare any more.
1668 (bitmap_obstack): Obstack for allocating links from.
1669 (bitmap_obstack_init): New static to say whether to initialize
1670 bitmap_obstack.
1671 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
1672 (bitmap_release_memory): Free all memory allocated from
1673 bitmap_obstack.
1674
1675 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
1676 EXECUTE_IF_AND_IN_BITMAP.
1677
57163df0
JW		 1678Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
1679
fa8b6024
JW		 1680 * alias.c (true_dependence): Address with AND can alias scalars.
1681 (anti_dependence, output_dependence): Likewise.
1682
57163df0
JW		 1683 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
1684
8aa4e786
JS		 1685Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
1686
1687 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
1688 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
1689 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
1690 definitions. Use -qrtems instead of -mrtems.
1691
feb21122
RL		 1692Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
1693
1694 * xm-sco5.h (sys_siglist): Define.
1695 (SYS_SIGLIST_DECLARED): Likewise.
1696
704af6a1
JL		 1697Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
1698
1699 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
1700
127cd405
TG		 1701Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
1702
1703 * except.c (eh_outer_context): Expand masking operation using
1704 expand_binop.
1705
8cf02b47
JW		 1706Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
1707
1708 * alpha.md (floatdisf2-1): New pattern.
1709
49dad301
JL		 1710Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
1711
068f1cb8
JL		 1712 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
1713 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
f04e7122 1714 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
068f1cb8
JL		 1715 * gcc.texi: Note that if you define sys_siglist that you should
1716 also define SYS_SIGLIST_DECLARED.
1717
49dad301
JL		 1718 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
1719 are relative to the next instruction, not the current instruction.
1720
a1729519
JW		 1721Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
1722
1723 * local-alloc.c (contains_replace_regs): New function.
1724 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
1725 verify that there is no existing REG_EQUIV note, and add a call to
1726 contains_place_regs.
1727
290c8b1f
L		 1728Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1729
1730 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
1731 (STARTFILE_SPEC): Always use crtbegin.o%s
1732 (ENDFILE_SPEC): Always use crtend.o%s.
1733
a6a503ed
JW		 1734Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
1735
1736 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
1737 is passed in.
1738 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
1739 SFmode for 64 bit hosts.
1740
a94729bc
PH		 1741Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
1742
1743 * fixincludes: Permits spaces between # and define. Discard C++
1744 comments in sys/pci.h on HP/UX 10.20.
1745
c9e03727
JL		 1746Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
1747
1748 * version.c: Bump for snapshot.
1749
2eddfed1
JL		 1750 * pa.c (restore_unscaled_index_insn_codes): New function.
1751 (record_unscaled_index_insn_codes): Likewise.
1752 (output_function_prologue): Call restore_unscaled_index_insn_codes.
1753 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
1754 (pa_reorg): Call record_unscaled_index_insn_codes.
1755
c9e03727
JL		 1756 * haifa-sched.c (move_insn): Handle notes correctly for insns
1757 with SCHED_GROUP_P set.
1758
a5d6a95b
L		 1759Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1760
1761 * alpha/xm-linux.h (USE_BFD): Undef before define.
1762
bc4ddc77
JW		 1763Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
1764
1765 * cse.c (cse_insn): Don't record BLKmode values.
1766
f3e0ca6c
SW		 1767Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
1768
1769 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
1770
e3512ac2
JL		 1771Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
1772
a63d08e6
JL		 1773 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
1774 * collect2.c (sys_errlist): Likewise.
1775 * cpplib.c (sys_errlist): Likewise.
1776 * gcc.c (sys_errlist): Likewise.
1777 * protoize (sys_errlist): Likewise.
1778 * configure.in: Check for strerror.
1779 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
1780 * xm-gnu.h (HAVE_STRERROR): Likewise.
1781 * xm-linux.h (HAVE_STRERROR): Likewise.
1782 * xm-netbsd.h (HAVE_STRERROR): Likewise.
1783 * xm-bsd386.h (HAVE_STRERROR): Likewise.
1784 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
1785 * xm-dos.h (HAVE_STRERROR): Likewise.
1786 * xm-mingw32.h (HAVE_STRERROR): Likewise.
1787 * xm-pa.h (HAVE_STRERROR): Likewise.
1788 * xm-papro.h (HAVE_STRERROR): Likewise.
1789 * xm-sysv4.h (HAVE_STRERROR): Likewise.
1790 * configure, config.in: Rebuilt.
1791
db814993
JL		 1792 * Makefile.in: Add several missing "else true" clauses.
1793
e3512ac2
JL		 1794 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
1795 * mips-tfile.c: Likewise.
1796 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
1797 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
1798 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
1799 * configure.in: Check for sys_siglist declaration.
1800 * configure, config.in: Rebuilt.
1801
5d84b57e
JS		 1802Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
1803
1804 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
1805 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
1806 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
1807 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
1808 * rs6000/sysv4.h (extra_subtarget_switches): Added new
1809 macro EXTRA_SUBTARGET_SWITCHES.
1810 * configure.in (sh*-*-rtems*): New target.
1811 * sh/rtems.h: New file.
1812 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
1813 * configure: Rebuilt.
1814
2599dcc7
JW		 1815Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
1816
1817 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
1818
3b7e5ef4
DE		 1819Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
1820
1821 * rs6000.md: Make DF fused-add operations pay attention to
1822 -mno-fused-add.
1823
5cd5f4a7
JW		 1824Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
1825
1826 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
1827
63e7fe9b
JL		 1828Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
1829
1830 * pa.md (reload_peepholes): Make sure operand is a REG before
1831 examining REGNO. Allow general registers too.
1832
eb7b11fd
JW		 1833Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
1834
1835 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
1836
c760091a
PT		 1837Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
1838
5cd5f4a7 1839 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
c760091a
PT		 1840 to reallocate abbrev_die_table.
1841
57583338
JW		 1842Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
1843
1844 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
1845
eae4b970
AS		 18461997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
1847
4f91a0f8
AS		 1848 * Makefile.in (config.status): Depend on version.c
1849
eae4b970
AS		 1850 * expr.h (insn_gen_function): Reenable prototype.
1851
1852 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
1853 first parameter.
1854
00fc09e1
JW		 1855Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
1856
1857 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
1858
2601ebca
JL		 1859Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
1860
1861 * version.c: Bump for latest snapshot.
1862
1863 * bc-optab.c: Conditionally include stdlib.h.
1864 (free): Provide a declaration if NEED_DECLARATION_FREE.
1865 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
1866 * rtl.h (free): Remove declaration.
1867 * tree.h (free): Remvoe declaration.
1868
1869 * configure: Rebuilt.
1870
e5eb27e5
JL		 1871Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
1872
1873 * flags.h (flag_move_all_movables): Declare.
1874 (flag_reduce_all_givs): Likewise.
1875 * loop.c (move_movables): Handle flag_move_all_movables.
1876 (strength_reduce): Handle flag_reduce_all_givs.
1877 * toplev.c (flag_move_all_movables): Define.
1878 (flag_reduce_all_givs): Likewise.
1879 (f_options): Add -fmove-all-movables and -freduce-all-givs.
1880 * invoke.texi: Document new options, including alias stuff that
1881 wasn't included last time.
1882
d995a6dc
BM		 1883Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
1884
1885 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
1886 * t-mn10200: Ditto.
1887 * t-vxsparc: Ditto.
1888 * t-vxworks68: Ditto.
1889 * t-vxworks960: Ditto.
1890 * t-vx29k: Ditto.
1891
ba64ca33
RH		 1892Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
1893
1894 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
1895 if not already defined, and USE_C_ALLOCA not defined.
1896
ca20876d
JW		 1897Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
1898
7818d6fc
JW		 1899 * config.guess: Replace with script that uses ../config.guess.
1900
ca20876d
JW		 1901 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
1902 if USE_GNULIBC_1 is not defined.
1903
704a6306
RH		 1904Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
1905
1906 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
1907 * config.guess: Recognize alpha-linux-gnulibc1.
1908 * configure.in (alpha-*-linux-gnulibc1): New target.
1909 (alpha-*-linux-gnu*): Don't build crtbegin/end.
1910
67f68fd2
JW		 1911Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
1912
1913 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
1914 last change.
1915
88016fb7
DE		 1916Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
1917
1918 * loop.c (combine_movables): Earlier insns don't match later ones.
1919
bba17b29
L		 1920Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1921
1922 * config/linux.h (CC1_SPEC): Define it only if not defined.
1923
1924 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
1925 <linux.h>
1926
1927 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
1928 USE_GNULIBC_1 is not defined.
1929
33d2808b 1930 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
bba17b29
L		 1931
1932 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
1933 as 1 if USE_GNULIBC_1 is not defined.
1934
ed4044e0
JL		 1935Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
1936
f345de42
JL		 1937 * reorg.c (dbr_schedule): Allow current_function_return_rtx
1938 to be something other than a REG.
1939 * function.c (expand_function_end): Fix current_function_return_rtx
1940 if it was a pseudo.
1941
ed4044e0
JL		 1942 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
1943 * x-netbsd: Likewise
1944 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1945 (INSTALL_HEADERS): Delete.
1946 * x-dguxbcs: Likewise.
1947 * x-hp3bsd44: Likewise
1948 * x-pa: Likewise.
1949
47d36400
BS		 1950Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1951
1952 * i386.md (pop): pop increments the stack pointer.
1953 (prologue_set_stack_ptr): New pattern.
1954 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1955 instead of subsi3.
1956
fc79eafe
JW		 1957Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
1958
1959 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1960 address where an offsettable address is required.
1961
c5da853f
MH		 1962Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
1963
1964 * loop.c (check_final_value): Don't miss a biv increment in a
1965 parallel.
1966
d4ef15f2
JW		 1967Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
1968
1969 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1970 TYPE_DECL_IS_STUB instead of DECL_NAME.
1971
10549cbd
JW		 1972Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1973
1974 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1975
1976Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
1977
1978 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1979
484df988
JL		 1980Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
1981
1982 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1983 (find_post_sched_live): Likewise.
1984
1985 * haifa-sched.c (schedule_block): Remove old code to get arguments
1986 from hard regs into pseudos early.
1987
39dfb55a
JL		 1988Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
1989
1990 * version.c: Bump for new snapshot.
1991
1992 * local-alloc.c (update_equiv_regs): All the target to reject
1993 promotion of some REG_EQUAL to REG_EQUIV notes.
1994 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1995
1996 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1997 secondary reloads.
1998
1999 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
2000 store of the argument registers.
2001
2002Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
2003
2004 * fold-const.c (multiple_of_p): New function.
2005 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
2006
d78778eb
JL		 2007Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
2008
2009 * expr.h (insn_gen_function): Temporarily remove prototype.
2010
feb9ea1a
JW		 2011Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
2012
2013 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
2014 filenames. Use sed to extract base filename for install.
2015
b6ffe602
JC		 2016Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
2017
2018 * unroll.c (find_splittable_givs): Only share if two givs have the
2019 same add and multiply values.
2020
2ebfd230
JW		 2021Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
2022
2023 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
2024 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
2025
251ffdee
JL		 2026Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
2027
2028 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
2029 around branch tables.
2030 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
2031 and .end_brtab directives if TARGET_GAS.
2032
19372aa1
JW		 2033Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
2034
27314274
JW		 2035 * alias.c (true_dependence): Pass x_addr not x to varies.
2036
19372aa1
JW		 2037 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
2038 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
2039 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
2040 declarations.
2041 * config.in, configure: Regenerate.
2042
2a2c8203
JC		 2043Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
2044
2045 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
2046 LO_SUM.
2047 (record_set): Handle LO_SUM like PLUS.
2048 (init_alias_analysis): When following chains of base addresses,
2049 do not stop on reaching a hard register.
2050
d80357b7
JL		 2051Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
2052
2053 * version.c: Bump for new snapshot.
2054
b4f32d7b
JW		 2055Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
2056
2057 * alpha.h (ARCH_ASM_FILE_START): Define.
2058 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
2059 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
2060
ca363bb6
JL		 2061Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
2062
2063 * Makefile.in (install-common): Put gcov comment at start of line.
2064
7557aa98
JL		 2065Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
2066
2067 * alias.c (init_alias_analysis): When simplifying the reg_base_value
2068 array, simplify entries for hard registers too.
2069
c34e3ae4
DL		 2070Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
2071
2072 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
2073 list.
2074
e3eef942
JW		 2075Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
2076
2077 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
2078 block_stack before dereferencing it.
2079
2080Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
246853b9
MM		 2081
2082 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
2083
04f41951
JM		 2084Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
2085
2086 * cplus-dem.c: Add 'extern' to prepends_underscore.
2087
e933cbe0
JL		 2088Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
2089
62d65906
JL		 2090 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
2091 (get_issue_rate): Delete.
2092 * pa.h (ISSUE_RATE): Define.
2093
2da05a5b
JL		 2094 * configure.in: Turn on haifa by default for the PA.
2095 * configure: Rebuilt.
2096 * pa.c (override_options): Accept -mschedule=7200 option.
2097 (pa_adjust_cost): No longer need to scale costs for newer
2098 processors.
2099 * pa.h (enum processor_type): Add PROCESSOR_7200.
2100 * pa.md: Revamp scheduling parameters to work better with
2101 haifa. Add scheduling parameters for the 7200.
2102
4f64eaca
JL		 2103 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
2104 insns too.
2105 (schedule_block): When adjusting basic_block_{head,end}, account
2106 for movement of SCHED_GROUP_P insns too.
2107
2108 * haifa-sched.c (debug_dependencies): Fix thinko.
2109
e933cbe0
JL		 2110 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
2111 (site.exp, check, check-g++, check-gcc): New targets.
2112
4f64eaca 2113 * haifa-sched.c: Make lots of variables static.
61822835 2114
e9576d2c
L		 2115Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
2116
2117 * expr.h, real.h: Finish prototyping.
2118
61822835
JL		 2119Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
2120
2121 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
2122 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
2123 * reload1.c: Undo bugfix from Aug 11.
2124
f24b370a
MM		 2125Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
2126
2127 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
2128 quotes around the name.
2129 * configure: Regenerate.
2130
1c4c5851
JW		 2131Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
2132
2133 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
2134
71abb567
MH		 2135Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
2136
2137 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
2138 to sub-makes to avoid building more passes than the user might have
2139 requested on the command line.
2140
6042434a
DL		 2141Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
2142
2143 * configure.in: Expurgate `broken_install' (install is
2144 autoconfed).
2145
2146 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
2147 relevant).
2148
38ea060f
JL		 2149Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
2150
2151 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
2152 functions and declarations.
2153 (analyze_loop_iterations): Use condjump_p.
2154 (insert_bct): Likewise. Use exact_log2.
2155
f187056f
JL		 2156Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
2157
2158 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
2159 (schedule_region): Likewise.
2160 (schedule_insns): Likewise.
2161
2162 * PROJECTS: Update with Haifa stuff.
2163
9af06254
JL		 2164Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
2165
2166 * version.c: Change the version string to look like:
11c21791 2167 egcs-2.90.00 970814 (gcc2-970802 experimental).
9af06254 2168
0945e937
JL		 2169 * loop.c (is_conditional_branch): Make definition match declaration.
2170
9af06254
JL		 2171 * gcc.c: Take out experimental snapshot warning message.
2172
ebc25a17
MM		 2173Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
2174
2175 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
2176 print out the names of the notes. Print out the name of the insn
2177 that is not a note, and not an {,CALL_,JUMP_}INSN.
2178
610ce97e
JM		 2179Wed Aug 13 17:32:38 1997 Jason Merrill <jason@yorick.cygnus.com>
2180
2181 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
2182 again for the slot after we give it RTL.
2183
992d1248
DE		 2184Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
2185
2186 * configure.in (haifa configury): Fix typo.
2187 * configure: Regenerate.
2188
7bb6fbd1
JL		 2189Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
2190
2191 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
2192
2193 * gcc.info*: Rebuilt.
2194
2195 * COPYING.g77, README.g77: New files.
2196 * real.c (ereal_unto_float, ereal_unto_double): New functions.
2197 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
2198 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
2199
8c660648
JL		 2200Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
2201
2202 * Integrate Haifa instruction scheduler.
2203 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
2204 to sched with $(SCHED_CFLAGS.
2205 * configure.in: Handle --enable-haifa.
2206 * configure: Rebuilt.
2207 * flags.h: Add new flags for haifa instruction scheduler.
2208 * genattrtab.c (expand_units): For haifa, don't subtract one
2209 when computing blockage.
2210 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
2211 (flag_schedule_speculative): Ditto.
2212 (flag_schedule_speculative_load): Ditto.
2213 (flag_schedule_speculative_load_dangerous): Ditto.
2214 (flag_schedule_reverse_before_reload): Ditto.
2215 (flag_schedule_reverse_after_reload): Ditto.
2216 (flag_branch_on_count_reg): Ditto.
2217 (f_options): Add Haifa switches.
2218 (main): Turn off some Haifa options if appropriate macro is
2219 defined. Process Haifa switches.
2220 * unroll.c (iteration_info): No longer static, since Haifa
2221 scheduler uses it.
2222 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
2223 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
2224 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
2225 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
2226 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
2227 storage for the Haifa scheduler.
2228 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
2229 LABEL_NEXTREF.
2230 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
2231 are defined, call analyze_loop_iterations and insert_bct to use
2232 countdown loops.
2233 (record_giv): Refine test for jumps out of loops if HAIFA is
2234 defined.
2235 (analyze_loop_iterations): New function to identify if we can use
2236 a countdown loop.
2237 (insert_bct): Insert countdown loop.
2238 (instrument_loop_bct): Low level code to insert countdown loop.
2239 (loop_number): Calculate UID of loop.
2240 (indirect_jump_in_function_p): Return true if an indirect jump is
2241 in the function.
2242 (is_power_of_2): Return true if value is a power of 2.
2243 (is_conditional_branch): Return true if insn is a conditional
2244 jump.
2245 (fix_bct_param): Process -fbct-{min,max}-N switches.
2246 (check_bct_param): Return true if loop should be instrumented.
2247 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
2248 (loop_optimize): Initialize.
2249 (get_condition_for_loop): Ditto.
2250 * loop.c (strength_reduce): Inside of code that uses #ifdef
2251 HAVE_decrement_and_branch_on_count code, test it to make sure the
2252 condition is true.
2253 (instrument_loop_bct): Ditto.
2254 * haifa-sched.c: New file.
2255
2256
2257 * Integrate regmove pass.
2258 * Makefile.in (OBJS): Add regmove.o
2259 (regmove.o): Add dependencies.
2260 * flow.c (find_use_as_address): No longer static.
2261 * rtl.h (find_use_as_address): Declare.
2262 * toplev.c (regmove_dump, flag_regmove): Define.
2263 (f_options): Add -fregmove.
2264 (regmove_dump_file, regmove_time): Define.
2265 (fatal_insn): Close the regmove dump file.
2266 (compile_file): Initialize regmove_time; open/close the regmove dump
2267 file as needed. Print regmove time as needed.
2268 (rest_of_compilation): Run regmove pass if requested, dump
2269 RTL after regmove if requested.
2270 (main): If -O2 or more, turn on regmove. Handle dump switches.
2271 * regmove.c: New file.
2272
aa32d841
JL		 2273Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
2274
2275 * Integrate tlink patch from jason@cygnus.com
2276 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
2277 (process_command): Increment n_switches for them. Don't discard
2278 their args. Validate them.
2279 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
2280 From Rohan Lenard.
2281 (process_command): Set include_prefixes from COMPILER_PATH.
2282 (main): Set COLLECT_GCC_OPTIONS sooner.
2283 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
2284 * tlink.c, hash.c, hash.h: New files.
2285 * Makefile.in (USE_COLLECT2): Always use collect2.
2286 (collect2): Depend on and link in hash.o and tlink.o.
2287 (tlink.o, hash.o): Add dependencies.
2288
5fa39bfe
JL		 2289Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
2290
9ae8ffe7
JL		 2291 * Integrate alias analysis changes from jfc@mit.edu
2292 * Makefile.in (OBJS): Add alias.o
2293 (alias.o): Add dependencies.
2294 * alias.c: New file.
2295 * sched.c: Remove alias analysis code. It lives in alias.c now.
9ae8ffe7 2296 (sched_analyze_2): Add new arguments to true_dependence.
9ae8ffe7
JL		 2297 (schedule_insns): Always call init_alias_analysis.
2298 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
2299 mark return value from such functions as a pointer and keep track of
2300 them for alias analysis. If a return value from a function is a
2301 pointer, mark it as such.
2302 * combine.c (distribute_notes): Handle REG_NOALIAS.
2303 * cse.c (struct write_data): Delete. No longer needed.
2304 (invalidate): Don't call set_nonvarying_address_components anymore.
2305 Use true_dependence to decide if an entry should be removed from
2306 the hash table.
2307 (invalidate_memory): Remove WRITES argument, simplify appropriately.
2308 Fix all callers.
2309 (note_mem_written): Similarly for WRITE_PTR argument.
2310 (invalidate_from_clobbers): Similarly for W argument.
2311 (invalidate_for_call): Remove memory elements from the hash table.
2312 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
2313 (cse_rtx_varies_p): New function. Derived from old
2314 cse_rtx_addr_varies_p.
2315 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
2316 Don't call note_mem_written anymore. Stack pushes invalidate the stack
2317 pointer if PUSH_ROUNDING is defined. No longer need to call
2318 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
2319 (skipped_writes_memory): Remove variable.
2320 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
2321 (invalidate_skipped_block): Simplify for new alias analysis code.
2322 (cse_set_around_loop): Likewise.
2323 (cse_main): Call init_alias_analysis.
2324 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
2325 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
2326 (f_options): Add new alias checking arguments.
2327 (main): Set flag_alias_check when optimizing.
2328 * local_alloc (validate_equiv_mem_from_store): Add new arguments
2329 to true_dependence.
2330 (memref_referenced_p): Likewise.
2331 * loop.c (NUM_STORES): Increase to 30.
2332 (prescan_loop): Only non-constant calls set unknown_address_altered.
2333 (invariant_p): Add new arguments to true_dependence.
2334 (record_giv): Initialize unrolled and shared fields.
2335 (emit_iv_add_mult): Call record_base_value as needed.
2336 * loop.h (struct induction): Add unrolled and shared fields.
2337 * unroll.c (unroll_loop): Call record_base_value as needed.
2338 (copy_loop_body): Likewise.
2339 (final_biv_value): Likewise.
2340 (final_giv_value): Likewise.
2341 (find_splittable_regs): Likewise. Only create one new pseudo
2342 if we have multiple address GIVs that were combined with the same
2343 dst_reg GIV. Note when a new register is created due to unrolling.
2344 * rtl.c (reg_note_name): Add REG_NOALIAS.
2345 * rtl.h (enum reg_note): Similarly.
2346 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
2347 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
2348 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
2349 (true_dependence, read_dependence, anti_dependence): Likewise.
2350 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
2351 (mark_user_reg, mark_reg_pointer): Likewise.
2352
2353
2354 * Integrate reload bugfix from Wilon which enables the PA port
5fa39bfe
JL		 2355 to bootstrap again.
2356 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
2357 OPERAND_ADDRESS when computing how many registers an insn needs.
2358 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
2359 conflict.
2360 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
2361 OPADDR_ADDR reload.
2362 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
2363 in reload_reg_use_in_op_addr do not reach the end.
2364 do not reach the end.
2365 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
2366 RELOAD_FOR_OPERAND_ADDRESS.
2367
2368Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
2369
2dcfcb56 2370 * egcs project officially starts.
861bb6c1 2371
GNU Compiler Collection
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