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function.c (assign_parms): Correct mode of stack_parm if entry_parm underwent a mode...
[gcc.git] / gcc / ChangeLog
CommitLineData
de957303
DE		 1Tue Oct 28 23:55:27 1997 Doug Evans (devans@cygnus.com)
2
3 * function.c (assign_parms): Correct mode of stack_parm if
4 entry_parm underwent a mode conversion.
5
ba3b3878
BK		 61997-10-28 Brendan Kehoe <brendan@lisa.cygnus.com>
7
8 * global.c (global_alloc): Use xmalloc instead of alloca for
9 CONFLICTS, since max_allocno * allocno_row_words alone can be more
10 than 2.5Mb sometimes.
11
d540ae2c
RH		 12Tue Oct 28 15:29:15 1997 Richard Henderson <rth@cygnus.com>
13
14 * reload1.c (eliminate_regs [SET]): If [SUBREG] widened the mode of
15 DEST for the spill, adjust mode of SRC to compensate.
16
42f4929d
RH		 17Tue Oct 28 14:36:45 1997 Richard Henderson <rth@cygnus.com>
18
19 * alpha.md (reload_inqi): Check for MEM before strict_memory_address_p,
20 since any_memory_operand() allows pseudos during reload.
21 (reload_inhi, reload_outqi, reload_outhi): Likewise.
22
08417478
JW		 23Tue Oct 28 11:53:14 1997 Jim Wilson <wilson@cygnus.com>
24
25 * m68k.md (btst patterns): Add 5200 support.
26
750e8348
TM		 27Tue Oct 28 11:58:40 1997 Toon Moene <toon@moene.indiv.nluug.nl>
28
29 * fold-const.c (fold): For ((a * C1) / C3) or (((a * C1) + C2) / C3)
30 optimizations, look inside dividend to determine if the expression
31 can be simplified by using EXACT_DIV_EXPR.
32
ede19932
JM		 33Tue Oct 28 10:19:01 1997 Jason Merrill <jason@yorick.cygnus.com>
34
35 From Brendan:
36 * dwarf2out.c (output_call_frame_info): Use l1 instead of ".".
37
66d91cb9
RH		 38Tue Oct 28 00:32:14 1997 Richard Henderson <rth@cygnus.com>
39
40 * alpha.c (summarize_insn [SUBREG]): Propogate SET.
41
4f3f5e9f
RH		 42Mon Oct 27 23:59:26 1997 Richard Henderson <rth@cygnus.com>
43
44 * alpha.c (alpha_handle_trap_shadows): Don't call get_attr_trap
45 on a CLOBBER.
46
f3352b9e
RH		 47Mon Oct 27 21:25:20 1997 Richard Henderson <rth@cygnus.com>
48
49 * alpha.md (movqi, movhi): Make sure new insns created during reload
50 won't need reloading themselves.
51 (reload_inqi, reload_inhi, reload_outqi, reload_outhi): Likewise.
52
0cecc190
JL		 53Mon Oct 27 16:11:10 1997 Jeffrey A Law (law@cygnus.com)
54
55 * mn10300.h (GO_IF_LEGITIMATE_ADDRESS): Disable reg+reg.
56
a09ba5a2
RH		 57Sun Oct 26 13:50:44 1997 Richard Henderson <rth@cygnus.com>
58
59 * alpha.c (alpha_sa_mask [VMS]): Don't include $26 in the mask.
60 Patch from Klaus Kaempf <kkaempf@progis.de>.
61
7581a30f
JW		 62Sun Oct 26 13:31:47 1997 Jim Wilson (wilson@cygnus.com)
63
64 * expr.c (expand_expr, case INDIRECT_REF): Optimize a reference
65 to an element in a constant string.
66
d84e64d4
JM		 67Sun Oct 26 11:41:49 1997 Jason Merrill <jason@yorick.cygnus.com>
68
69 * dwarf2out.c (output_call_frame_info): The CIE pointer is now a 32
70 bit PC-relative offset. The exception range table pointer is now in
71 the CIE.
72 * frame.c (dwarf_cie, dwarf_fde): Rename CIE_pointer to CIE_delta.
73 (count_fdes, add_fdes, get_cie): Adjust.
74 (cie_info, extract_cie_info, __frame_state_for): Adjust eh_ptr uses.
75
76 From H.J. Lu:
77 * frame.c (count_fdes, add_fdes): Skip linked once FDE entries.
78
96286722
RH		 79Sun Oct 26 11:52:01 1997 Richard Henderson <rth@cygnus.com>
80
81 * alias.c (memrefs_conflict_p): Treat arg_pointer_rtx just
82 like stack_pointer_rtx.
83
e85988b5
MH		 84Sun Oct 26 11:32:16 1997 Manfred Hollstein <manfred@s-direktnet.de>
85
361e618f
MH		 86 * Makefile.in (bootstrap-lean): Combined with `normal' bootstrap
87 targets using "$@" to provide support for similar but not identical
88 targets without having to duplicate code.
89 (bootstrap4): New goal.
90
e85988b5
MH		 91 * Makefile.in (compare, compare-lean, compare3): Combined to one
92 ruleset determining actions to be performed via $@.
93 (compare4, compare4-lean): New targets.
94 (gnucompare, gnucompare3): Combined to one ruleset determining
95 actions to be performed via $@. Also, note which files failed
96 the comparison test in .bad_compare.
97 (gnucompare-lean, gnucompare3-lean, gnucompare4-lean): New targets.
98
91585c63
TM		 99Sun Oct 26 10:06:11 1997 Toon Moene <toon@moene.indiv.nluug.nl>
100
101 * fold-const (fold): Also simplify FLOOR_DIV_EXPR to EXACT_DIV_EXPR
102 if the dividend is a multiple of the divisor.
103
da0af5a5
JL		 104Sun Oct 26 09:21:40 1997 Jeffrey A Law (law@cygnus.com)
105
7337c67f
JL		 106 * Makefile.in (LIBGCC2_CFLAGS): Add -fexceptions.
107
adb9effb 108 * alias.c (find_base_term): Handle PRE_INC, PRE_DEC, POST_INC,
6d849a2a 109 and POS_DEC.
6d849a2a
JL		 110
111 * alias.c (true_dependence): Fix typo.
112
6d6d0fa0
JL		 113 * toplev.c (flag_rerun_loop_opt): New variable.
114 (f_options): Handle -frerun-loop-opt.
115 (rest_of_compilation): If -frerun-loop-opt, then run the loop
116 optimizer twice.
117 (main): Enable -frerun-loop-opt by default for -O2 or greater.
118
da0af5a5
JL		 119 * loop.c (simplify_giv_expr): Adding two invariants results
120 in an invariant.
121
ca0f2220
RH		 122Sun Oct 26 09:15:15 1997 Richard Henderson <rth@cygnus.com>
123
124 * expr.c (get_inner_reference): Remove the array bias after
125 converting the index to Pmode.
126
a6f7ba17
JL		 127Sat Oct 25 12:20:58 1997 Jeffrey A Law (law@cygnus.com)
128
129 * mn10300.h (TARGET_SWITCHES): Add -mmult-bug and -mno-mult-bug.
130 (TARGET_MULT_BUG): Define.
131 (TARGET_DEFAULT): Default to TARGET_MULT_BUG.
132 * mn10300.md (mulsi3): Handle TARGET_MULT_BUG.
133
17ad8a3b
JL		 134Fri Oct 24 17:40:34 1997 Jeffrey A Law (law@cygnus.com)
135
136 * mn10200.c (indirect_memory_operand): Delete unused function.
137 * mn10200.h (EXTRA_CONSTRAINT): Handle 'R'.
138 * mn10200.md (bset, bclr insns): Handle output in a reg too.
139
e16b49d3
RH		 140Fri Oct 24 15:54:57 1997 Richard Henderson <rth@cygnus.com>
141
142 * alpha.md (call patterns): Revert Oct 16 change; if we are to elide
143 the callee's ldgp, we must do it ourselves, and we use the jsr tag
144 for more than scheduling.
145
27f65411
DE		 146Fri Oct 24 13:23:04 1997 Doug Evans <devans@canuck.cygnus.com>
147
148 * sparc/sparc.h (ASM_SPEC): Delete asm_arch.
149
e9ad4573
JL		 150Fri Oct 24 13:19:40 1997 Jeffrey A Law (law@cygnus.com)
151
152 * mn10300.c (symbolic_operand, legitimize_address): New functions.
153 * mn10300.h (LEGITIMIZE_ADDRESS): Call legitimize_address.
154 (GO_IF_LEGITIMATE_ADDRESS): Don't allow base + symbolic.
155
66724f0a
JL		 156Thu Oct 23 09:35:12 1997 Jeffrey A Law (law@cygnus.com)
157
158 * version.c: Bump for snapshot.
159
c401498b
R		 160Thu Oct 23 08:03:59 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
161
162 * dbxout.c (dbxout_start_new_source_file): Use output_quoted_string
163 for FILENAME.
164
b22b9b3e
JL		 165Wed Oct 22 00:34:12 1997 Jeffrey A Law (law@cygnus.com)
166
56bf1fd9
JL		 167 * toplev.c (flag_exceptions): Default value is 2.
168 (compile_file): If flag_exceptions still has the value 2, then
169 set it to 0.
170
a04232e5
JL		 171 * rs6000.c (struct machine_function): Add pic_offset_table_rtx.
172 (rs6000_save_machine_status): Save pic_offset_table_rtx.
173 (rs6000_restore_machine_status: Restore pic_offset_table_rtx.
174
0bd83abd
JL		 175 * local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions
176 are shared.
177
b22b9b3e
JL		 178 * rs6000.md (*movsi_got_internal_mem): New pattern.
179 (*movsi_got_internal_mem splitter): New define_split.
180
c1e385db
JW		 181Tue Oct 21 18:14:03 1997 Jim Wilson <wilson@cygnus.com>
182
183 * obstack.h (obstack_empty_p): Fix spurious space after backslash.
184
1a986152
GK		 185Tue Oct 21 18:34:01 1997 Geoffrey KEATING <geoffk@ozemail.com.au>
186
187 * rs6000.c: Avoid creating a stack frame under SYSV ABI if we
188 only need to save LR.
189
5d29a95f
JL		 190Tue Oct 21 10:06:40 1997 Jeffrey A Law (law@cygnus.com)
191
c6ee9150
JL		 192 * mn10300.md (movqi, movhi): Avoid using address registers as
193 destinations unless absolutely necessary.
194
d5255ba2
JL		 195 * mn10200.c (expand_prologue): Fix typo.
196
9d2128b8
JL		 197 * mn10200.h (GO_IF_LEGITIMATE_ADDRESS): Do not allow indexed
198 addresses.
199 * mn10200.md (neghi2): Provide an alternative which works if
200 the input and output register are the same.
201
576e5acc
JL		 202 * mn10300.c (print_operand): Handle 'S'.
203 * mn10300.md (ashlsi3, lshrsi3, ashrsi3): Use %S for
204 shift amount in last alternative
205
5d29a95f
JL		 206 * mn10300.c (expand_epilogue): Rework to handle register restores
207 in "ret" and "retf" instructions correctly.
208
3bf1b082
JW		 209Mon Oct 20 16:47:08 1997 Jim Wilson <wilson@cygnus.com>
210
211 * expmed.c (extract_bit_field): Don't make flag_force_mem disable
212 extzv for memory operands.
213
214 * cse.c (simplify_ternary_operation, case IF_THEN_ELSE): Collapse
215 redundant conditional moves to single operand.
216
ddbd8d36
NC		 217Mon Oct 20 15:30:26 1997 Nick Clifton <nickc@cygnus.com>
218
219 * v850.h: Move define of __v850__ from CPP_PREDEFINES
220 to CPP_SPEC.
221
222 * xm-v850.h: Use __v850 rather than __v850__ to
223 identify v850 port.
224
a944a4eb
JW		 225Mon Oct 20 14:15:02 1997 Jim Wilson <wilson@cygnus.com>
226
227 * mips/mips.c (compute_frame_size): Not a leaf function if
228 profile_flag set.
229
2d5b6dea
GK		 230Mon Oct 20 14:16:38 1997 Geoffrey KEATING <geoffk@ozemail.com.au>
231
232 * rs6000/t-ppccomm: Use -msdata=none for crtstuff.
233
f0a9fa6c
DE		 234Mon Oct 20 12:28:17 1997 Doug Evans <devans@canuck.cygnus.com>
235
236 * sparc/sparc.h (SPARC_V9,SPARC_ARCH64): Delete.
237 (DEFAULT_ARCH32_P): New macro.
238 (TARGET_ARCH{32,64}): Allow compile time or runtime selection.
239 (enum cmodel): Declare.
240 (sparc_cmodel_string,sparc_cmodel): Declare.
241 (SPARC_DEFAULT_CMODEL): Provide default.
242 (TARGET_{MEDLOW,MEDANY}): Renamed to TARGET_CM_{MEDLOW,MEDANY}.
243 (TARGET_FULLANY): Deleted.
244 (TARGET_CM_MEDMID): New macro.
245 (CPP_CPU_DEFAULT_SPEC): Renamed from CPP_DEFAULT_SPEC.
246 (ASM_CPU_DEFAULT_SPEC): Renamed from ASM_DEFAULT_SPEC.
247 (CPP_PREDEFINES): Take out stuff now handled by %(cpp_arch).
248 (CPP_SPEC): Rewrite.
249 (CPP_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
250 (CPP_{ENDIAN,SUBTARGET}_SPEC): New macros.
251 (ASM_ARCH{,32,64,_DEFAULT}_SPEC): New macros.
252 (ASM_SPEC): Add %(asm_arch).
253 (EXTRA_SPECS): Rename cpp_default to cpp_cpu_default.
254 Rename asm_default to asm_cpu_default.
255 Add cpp_arch32, cpp_arch64, cpp_arch_default, cpp_arch, cpp_endian,
256 cpp_subtarget, asm_arch32, asm_arch64, asm_arch_default, asm_arch.
257 (NO_BUILTIN_{PTRDIFF,SIZE}_TYPE): Define ifdef SPARC_BI_ARCH.
258 ({PTRDIFF,SIZE}_TYPE): Provide 32 and 64 bit values.
259 (MASK_INT64,MASK_LONG64): Delete.
260 (MASK_ARCH64): Renamed to MASK_64BIT.
261 (MASK_{MEDLOW,MEDANY,FULLANY,CODE_MODEL}): Delete.
262 (EMBMEDANY_BASE_REG): Renamed from MEDANY_BASE_REG.
263 (TARGET_SWITCHES): Always provide 64 bit options.
264 (ARCH64_SWITCHES): Delete.
265 (TARGET_OPTIONS): New option -mcmodel=.
266 (INT_TYPE_SIZE): Always 32.
267 (MAX_LONG_TYPE_SIZE): Define ifdef SPARC_BI_ARCH.
268 (INIT_EXPANDERS): sparc64_init_expanders renamed to sparc_init_....
269 (FUNCTION_{,BLOCK_}PROFILER): Delete TARGET_EMBMEDANY support.
270 (PRINT_OPERAND_PUNCT_VALID_P): Add '_'.
271 * sparc/linux-aout.h (CPP_PREDEFINES): Take out stuff handled by
272 CPP_SPEC.
273 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
274 * sparc/linux.h: Likewise.
275 * sparc/linux64.h (SPARC_V9,SPARC_ARCH64): Delete.
276 (ASM_CPU_DEFAULT_SPEC): Renamed from ASM_DEFAULT_SPEC.
277 (TARGET_DEFAULT): Delete MASK_LONG64, MASK_MEDANY, add MASK_64BIT.
278 (SPARC_DEFAULT_CMODEL): Define.
279 (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
280 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
281 (LONG_DOUBLE_TYPE_SIZE): Define.
282 (ASM_SPEC): Add %(asm_arch).
283 * sparc/sol2.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
284 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
285 (TARGET_CPU_DEFAULT): Add ultrasparc case.
286 * sparc/sp64-aout.h (SPARC_V9,SPARC_ARCH64): Delete.
287 (TARGET_DEFAULT): MASK_ARCH64 renamed to MASK_64BIT.
288 (SPARC_DEFAULT_CMODEL): Define.
289 * sparc/sp64-elf.h (SPARC_V9,SPARC_ARCH64): Delete.
290 (TARGET_DEFAULT): MASK_ARCH64 renamed to MASK_64BIT. Delete
291 MASK_LONG64, MASK_MEDANY.
292 (SPARC_DEFAULT_CMODEL): Define.
293 (CPP_PREDEFINES): Delete.
294 (CPP_SUBTARGET_SPEC): Renamed from CPP_SPEC.
295 (ASM_SPEC): Add %(asm_arch).
296 (LONG_DOUBLE_TYPE_SIZE): Define.
297 (DWARF2_DEBUGGING_INFO): Define.
298 * sparc/splet.h (CPP_SPEC): Delete.
299 * sparc/sysv4.h (CPP_PREDEFINES): Take out stuff handled by CPP_SPEC.
300 (FUNCTION_BLOCK_PROFILER): Delete TARGET_EMBMEDANY support.
301 (BLOCK_PROFILER): Likewise.
302 * sparc/sparc.c (sparc_cmodel_string,sparc_cmodel): New globals.
303 (sparc_override_options): Handle code model selection.
304 (sparc_init_expanders): Renamed from sparc64_init_expanders.
305 * sparc/sparc.md: TARGET_<code_model> renamed to TARGET_CM_....
306 TARGET_MEDANY renamed to TARGET_CM_EMBMEDANY.
307 (sethi_di_embmedany_{data,text}): Renamed from sethi_di_medany_....
308 (sethi_di_fullany): Delete.
309
a3b0df2d
KK		 310Mon Oct 20 02:00:18 1997 Klaus Kaempf <kkaempf@progis.de>
311 Jeff Law <law@cygnus.com>
312 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
313
3a133c72
KK		 314 * alpha/vms.h (DIVSI3_LIBCALL): OTS$ functions are upper case.
315 (DIVDI3_LIBCALL, UDIVSI3_LIBCALL, UDIVDI3_LIBVALL): Likewise.
316 (MODSI3_LIBCALL, MODDI3_LIBCALL): Likewise.
317 (UMODSI3_LIBCALL, UMODDI3_LIBCALL): Likewise.
318 * alpha/alpha.md (arg_home): Likewise.
319
a3b0df2d
KK		 320 * alpha/alpha.c (vmskrunch): Delete
321 * alpha/vms.h (ENCODE_SECTION_INFO, ASM_DECLARE_FUNCTION_NAME): Delete.
322 * alpha.c (output_prolog, VMS): Use alloca for entry_label and don't
323 truncate to 64 characters.
324
325 * make-l2.com: Support openVMS/Alpha.
326
327 * vmsconfig.com: Fix to work on openVMS/Alpha and openVMS/VAX.
328
7d4f2e6c
R		 329Sun Oct 19 19:00:35 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
330
331 * longlong.h (count_leading_zeros): Add missing casts to USItype.
332
decd44ac
JL		 333Sun Oct 19 18:44:06 1997 Jeffrey A Law (law@cygnus.com)
334
335 * i386/bsd386.h (ASM_COMMENT_START): Define.
336
d1485032
JM		 337Sat Oct 18 13:47:15 1997 Jason Merrill <jason@yorick.cygnus.com>
338
339 * tree.c (restore_tree_status): Also free up temporary storage
340 when we finish a toplevel function.
341 (dump_tree_statistics): Print stats for backend obstacks.
342
6bd35f86
DE		 343Sat Oct 18 12:47:31 1997 Doug Evans <dje@canuck.cygnus.com>
344
345 * expr.c (use_group_regs): Don't call use_reg for MEMs.
346
d1485032
JM		 347Sat Oct 18 09:49:46 1997 Jason Merrill <jason@yorick.cygnus.com>
348
349 * libgcc2.c (__throw): Don't copy the return address.
350 * dwarf2out.c (expand_builtin_dwarf_reg_size): Ignore return address.
351
352 * except.c (exceptions_via_longjmp): Initialize to 2 (uninitialized).
353 * toplev.c (main): Initialize exceptions_via_longjmp.
354
355 * tree.c: Add extra_inline_obstacks.
356 (save_tree_status): Use it.
357 (restore_tree_status): If this is a toplevel inline obstack and we
358 didn't want to save anything on it, recycle it.
359 (print_inline_obstack_statistics): New fn.
360 * function.c (pop_function_context_from): Pass context to
361 restore_tree_status.
362 * obstack.h (obstack_empty_p): New macro.
363
6981eacf
JL		 364Sat Oct 18 00:43:59 1997 Jeffrey A Law (law@cygnus.com)
365
366 * i386/freebsd.h (ASM_COMMENT_START): Fix.
367
1933ec7e
JW		 368Fri Oct 17 23:48:52 1997 Jim Wilson (wilson@cygnus.com)
369
370 * v850.c (ep_memory_offset): New function.
371 (ep_memory_operand, substitute_ep_register, v850_reorg): Call it.
372
373 * v850.h (CONST_OK_FOR_*): Add and correct comments.
374 (CONSTANT_ADDRESS_P): Add comment.
375 (EXTRA_CONSTRAINT): Define 'U'.
376 * v850.md: Add comments on bit field instructions.
377 (addsi3): Delete &r/r/r alternative. Add r/r/U alternative.
378 (lshrsi3): Use N not J constraint.
379
380 * v850.md (v850_tst1+1): New define_split for tst1 instruction.
381
382 * v850.c (reg_or_0_operand): Call register_operand.
383 (reg_or_int5_operand): Likewise.
384 * v850.h (MASK_BIG_SWITCH, TARGET_BIG_SWITCH): New macros.
385 (TARGET_SWITCHES): Add "big-switch".
386 (ASM_OUTPUT_ADDR_VEC_ELT, ASM_OUTPUT_ADDR_DIFF_ELT, CASE_VECTOR_MODE,
387 ASM_OUTPUT_BEFORE_BASE_LABEL): Add support for TARGET_BIG_SWITCH.
388 (CASE_DROPS_THROUGH): Comment out.
389 (CASE_VECTOR_PC_RELATIVE, JUMP_TABLES_IN_TEXT_SECTION): Define.
390 * v850.md (cmpsi): Delete compare mode.
391 (casesi): New pattern.
392
393 * v850.h (CONST_OK_FOR_N): Delete redundant compare against zero.
394 * v850.md (ashlsi3): Use SImode not QImode for shift count.
395 (lshrsi3): Likewise.
396
397 * v850.c (print_operand): Add 'c', 'C', and 'z' support. Delete
398 unreachable switch statement after 'b' support. Remove "b" from
399 strings for 'b' support.
400 * v850.md (branch_normal, branch_invert): Change %b to b%b.
401
13c2de98
JL		 402Fri Oct 17 23:33:20 1997 Jeffrey A Law (law@cygnus.com)
403
404 * Makefile.in (LIBGCC2_CFLAGS): Avoid a backslash then an
405 empty line if @inhibit_libc@ is empty.
406
b2167bee
RL		 407Fri Oct 17 23:24:40 1997 Robert Lipe (robertl@dgii.com)
408
409 * i386/sco5.h: Let ELF use dwarf2 unwinding. COFF uses sjlj.
410 (EH_FRAME_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP_ELF): Defined.
411 (EH_FRAME_SECTION_ASM_OP_COFF): Likewise.
412 (DWARF2_UNWIND_INFO): Let this track object file format.
413 (EXTRA_SECTIONS): Add in_eh.
414 (EH_FRAME_SECTION_ASM_OP, EH_FRAME_SECTION_ASM_OP_ELF): Define.
415 (EH_FRAME_SECTION_ASM_OP_COFF): Likewise.
416
bf2a2c6b
DM		 417Fri Oct 17 17:13:42 1997 David S. Miller <davem@tanya.rutgers.edu>
418
419 * sparc/linux64.h (LINK_SPEC): Dynamic linker is ld-linux64.so.2.
da2a90f7
DM		 420 * sparc/sparc.h (FUNCTION_PROFILER): Fix format string when
421 TARGET_MEDANY.
f4f8e370
DE		 422 * sparc/sparc.c (dwarf2out_cfi_label): Extern no longer needed.
423 (output_double_int): Output DI mode values correctly when
424 HOST_BITS_PER_WIDE_INT is 64.
9d162eb2
DE		 425 (output_fp_move_quad): If TARGET_V9 and not TARGET_HARD_QUAD, use
426 fmovd so it works if a quad float ends up in one of the upper 32
427 float regs.
7e37212e
DM		 428 * sparc/sparc.md (pic_{lo_sum,sethi}_di): New patterns
429 necessary for PIC support on sparc64.
bf2a2c6b 430
9ff84e67
DE		 431Fri Oct 17 13:39:56 1997 Doug Evans <dje@canuck.cygnus.com>
432
433 * sparc/sp64-elf.h (TARGET_DEFAULT): Delete MASK_STACK_BIAS.
434 * sparc/sparc.h (PROMOTE_MODE): Promote small ints if arch64.
435 (PROMOTE_FUNCTION_ARGS,PROMOTE_FUNCTION_RETURN): Define.
436 (SPARC_FIRST_FP_REG, SPARC_FP_REG_P): New macros.
437 (SPARC_{OUTGOING,INCOMING}_INT_ARG_FIRST): New macros.
438 (SPARC_FP_ARG_FIRST): New macro.
439 (CONDITIONAL_REGISTER_USAGE): All v9 fp regs are volatile now.
440 (REG_ALLOC_ORDER,REG_LEAF_ALLOC_ORDER): Reorganize fp regs.
441 (NPARM_REGS): There are 32 fp argument registers now.
442 (FUNCTION_ARG_REGNO_P): Likewise.
443 (FIRST_PARM_OFFSET): Update to new v9 abi.
444 (REG_PARM_STACK_SPACE): Define for arch64.
445 (enum sparc_arg_class): Delete.
446 (sparc_arg_count,sparc_n_named_args): Delete.
447 (struct sparc_args): Redefine and use for arch32 as well as arch64.
448 (GET_SPARC_ARG_CLASS,ROUND_REG,ROUND_ADVANCE): Delete.
449 (FUNCTION_ARG_ADVANCE): Rewrite.
450 (FUNCTION_ARG,FUNCTION_INCOMING_ARG): Rewrite.
451 (FUNCTION_ARG_{PARTIAL_NREGS,PASS_BY_REFERENCE}): Rewrite.
452 (FUNCTION_ARG_CALLEE_COPIES): Delete.
453 (FUNCTION_ARG_{PADDING,BOUNDARY}): Define.
454 (STRICT_ARGUMENT_NAMING): Define.
455 (doublemove_string): Declare.
456 * sparc/sparc.c (sparc_arg_count,sparc_n_named_args): Delete.
457 (single_move_string): Use GEN_INT, and HOST_WIDE_INT.
458 (doublemove_string): New function.
459 (output_move_quad): Clean up some of the arch64 support.
460 (compute_frame_size): Add REG_PARM_STACK_SPACE if arch64.
461 Don't add 8 bytes of reserved space if arch64.
462 (sparc_builtin_saveregs): Combine arch32/arch64 versions.
463 (init_cumulative_args): New function.
464 (function_arg_slotno): New static function.
465 (function_arg,function_arg_partial_nregs): New functions.
466 (function_arg_{pass_by_reference,advance}): New functions.
467 (function_arg_padding): New function.
c1215820 468 * ginclude/va-sparc.h: Rewrite v9 support.
9ff84e67 469
b8fb2d72
CI		 470Fri Oct 17 12:29:48 1997 Christian Iseli <Christian.Iseli@lslsun.epfl.ch>
471
f22376c7
CI		 472 * regclass.c (record_address_regs): Look at REG_OK_FOR_{BASE,INDEX}_P
473 for hard regs to determine base and index registers.
474
b8fb2d72
CI		 475 * reload.c (debug_reload_to_stream): New function. Specify stream
476 into which to write debug info.
477 (debug_reload): Modify to call debug_reload_to_stream with stderr.
478
b79ee7eb
RH		 479Thu Oct 16 15:07:51 1997 Richard Henderson <rth@cygnus.com>
480
481 * combine.c (can_combine_p): Don't combine with an asm whose
482 output is a hard register.
483
5c19a356
MS		 484Thu Oct 16 15:43:26 1997 Mike Stump (mrs@wrs.com)
485
486 * c-decl.c (start_struct): Ensure that structs with forward
487 declarations are in fact packed when -fpack-struct is given.
488
489 * stor-layout.c (layout_record): Ignore STRUCTURE_SIZE_BOUNDARY if
490 we are packing a structure. This allows a structure with only
491 bytes to be aligned on a byte boundary and have no padding on a
492 m68k.
493
02bef6da
RK		 494Thu Oct 16 15:17:54 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
495
496 * rs6000.h (ROUND_TYPE_ALIGN): Don't blow up if no fields in record.
497
9ecc37f0
RH		 498Thu Oct 16 11:20:30 1997 Richard Henderson <rth@cygnus.com>
499
500 * alpha.c (alpha_return_addr_rtx): New variable.
501 (alpha_save_machine_status): New; save it.
502 (alpha_restore_machine_status): New; restore it.
503 (alpha_init_expanders): New; clear it.
504 (alpha_return_addr): New; set it.
505 (alpha_ra_ever_killed): New; if alpha_return_addr_rtx, regs_ever_live
506 is overly conservative, so search the insns explicitly.
507 (alpha_sa_mask [VMS]): Check alpha_ra_ever_killed.
508 (alpha_sa_size [VMS && !VMS]): Likewise.
509 * alpha.h (RETURN_ADDR_RTX): Call alpha_return_addr.
510 (INIT_EXPANDERS): New definition.
511
512 * alpha.c: Move REG_PV, REG_RA somewhere more visible in the file.
513 (output_prolog [!VMS]): Use them.
514
515 * alpha.c (output_prolog [!VMS]): Move gp detection to ...
516 (alpha_does_function_need_gp): ... a new function. Refine the
517 CALL_INSN test to just TYPE_JSR.
518 * alpha.md (most call insns): Fix some jsr/ibr type transpositions.
519
bda2ffef
JL		 520Thu Oct 16 09:36:47 1997 Jeffrey A Law (law@cygnus.com)
521
522 * version.c: Bump for snapshot.
523
96b63cd7
RK		 524Wed Oct 15 21:38:18 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
525
526 * pa.c (move_operand): Respect -mdisable-indexing.
527 * pa.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.
528
f192bf8b
DE		 529Wed Oct 15 21:34:45 1997 David Edelsohn <edelsohn@mhpcc.edu>
530
531 * rs6000.md (udivsi3, divsi3): Split into MQ and non-MQ cases for
532 PPC601.
533 (umulsidi3,umulsi3_highpart): Ditto.
534 (smulsi3_highpart_no_mq): Add !TARGET_POWER.
535
2ea844d3
RH		 536Wed Oct 15 18:21:46 1997 Richard Henderson <rth@cygnus.com>
537
538 * alpha.c (final_prescan_insn): Gut, remove and transform to ...
539 (alpha_handle_trap_shadows): ... a new function. Handle the entire
540 function in one go. Emit RTL for trapb, instead of printf directly.
541 (alpha_reorg): New function. Call alpha_handle_trap_shadows.
542 (trap_pending): Kill global variable.
543 (output_epilog): Don't call final_prescan_insn.
544 (struct shadow_summary): Elide $31 and $f31; now it fits in a word.
545 * alpha.h (FINAL_PRESCAN_INSN): Remove.
546 (MACHINE_DEPENENT_REORG): Define.
547 * alpha.md (jsr patterns with trapb): Stupid and useless. Kill.
548 (trapb): New insn.
549
74835ed8
RH		 550Wed Oct 15 18:16:05 1997 Richard Henderson <rth@cygnus.com>
551
552 Tune Haifa scheduler for Alpha:
553 * alpha.h (ISSUE_RATE): Define.
554 * alpha.c (alpha_adjust_cost): Handle EV5 mult delay; don't apply
555 EV4 adjustments to EV5.
556 * alpha.md: Remove all scaling from function unit delays. Rework
557 EV5 function units to match the CPU.
558 (umuldi3_highpart): EV5 added the IMULH insn class.
559
cdc0de30
JL		 560Wed Oct 15 17:42:41 1997 Jeffrey A Law (law@cygnus.com)
561
562 * pa.c (following_call): Fail if the CALL_INSN is an indirect
563 call.
564
041c97f2
MM		 565Tue Oct 14 12:01:00 1997 Mark Mitchell <mmitchell@usa.net>
566
567 * cplus-dem.c (demangle_signature): Don't look for return types on
568 constructors. Handle member template constructors.
569
f0632762
JM		 570Tue Oct 14 11:30:29 1997 Jason Merrill <jason@yorick.cygnus.com>
571
572 * tree.c (expr_tree_cons, build_expr_list, expralloc): New fns.
22ef8a13 573 * tree.h: Declare them.
f0632762 574
dec88383
DE		 575Fri Oct 10 13:46:56 1997 Doug Evans <dje@canuck.cygnus.com>
576
577 * configure.in: Handle --with-newlib.
578 * Makefile.in (LIBGCC2_CFLAGS): Add @inhibit_libc@.
579
580 * sparc/t-sp64 (LIBGCC2_CFLAGS): Delete.
581
0e1f3f5e
JL		 582Wed Oct 8 14:37:44 1997 Jeffrey A Law (law@cygnus.com)
583
584 * config/ptx4.h: Fix typo.
585
12504ae0
JL		 586Wed Oct 8 08:57:20 1997 Jeffrey A Law (law@cygnus.com)
587
588 * version.c: Bump for snapshot.
589
5643c767
MH		 590Tue Oct 7 16:27:34 1997 Manfred Hollstein <manfred@s-direktnet.de>
591
592 * aclocal.m4: Substitute INSTALL.
593 * configure: Re-built.
594
aa0c1401
JL		 595Tue Oct 7 15:37:35 1997 Jeffrey A Law (law@cygnus.com)
596
f644bd14
JL		 597 * integrate.c (save_for_inline_copying): Avoid undefined pointer
598 operations.
599 (expand_inline_function): Likewise.
600
aa0c1401
JL		 601 * dwarf2out.c (output_call_frame_info): Reinstate last change
602 using flag_debug_asm check instead of flag_verbose_asm.
603
6c2df6c9
JW		 604Tue Oct 7 12:57:26 1997 Jim Wilson <wilson@cygnus.com>
605
606 * dwarf2out.c (output_call_frame_info): Remove last change.
607
13ab2b83
AS		 6081997-10-04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
609
610 * frame.c (__frame_state_for): Execute the FDE insns until the
611 current pc value is strictly bigger than the target pc value.
612
066c2fea
JM		 613Tue Oct 7 11:00:42 1997 Jason Merrill <jason@yorick.cygnus.com>
614
615 * regclass.c (init_reg_modes): If we can't find a mode for the
616 register, use the previous one.
617
2f308fec
RH		 618Tue Oct 7 10:55:34 1997 Richard Henderson <rth@cygnus.com>
619
620 * haifa-sched.c (print_block_visualization): Call fprintf directly,
621 don't sprintf through an alloca'ed buffer.
622
43984e29
TK		 623Tue Oct 7 10:52:29 1997 Thomas Koenig (ig25@rz.uni-karlsruhe.de)
624
625 * reload.c (decompose): Always initialize val.base.
626
e9e30253
MH		 627Tue Oct 7 10:19:26 1997 Manfred Hollstein (manfred@lts.sel.alcatel.de)
628
629 * m68k/mot3300.h (ASM_OUTPUT_ALIGN): Accept any alignment
630 instead of aborting.
631 * dwarf2out.c (output_call_frame_info): Call app_enable and
632 app_disable to let GNU as accept the generated comments.
633
496651db
MM		 634Tue Oct 7 11:41:21 1997 Michael Meissner <meissner@cygnus.com>
635
636 * tree.h (get_file_function_name): Add declaration.
637 * dwarf2out.c (output_call_frame_info): No need to cast
638 get_file_function_name call anymore.
639 * profile.c (toplevel): Remove get_file_function_name
640 declaration.
641 * c-lang.c (finish_file): Ditto.
642
e6347456
CS		 643Tue Oct 7 10:01:45 1997 Chip Salzenberg <chip@rio.atlantic.net>
644
645 * Makefile.in (program_transform_name): Let autoconf substitute
646 the correct value.
647
1447b516
JL		 648Tue Oct 7 09:54:35 1997 Jeffrey A Law (law@cygnus.com)
649
650 * haifa-sched.c (schedule_block): If the first real insn in a
651 block has any special notes attached to it, remove them.
652
1a42ead7
RH		 653Tue Oct 7 09:48:51 1997 Richard Henderson <rth@cygnus.com>
654
655 * alpha.h (FLOAT_STORE_FLAG_VALUE): It's 2.0 not 0.5.
656
4b6140f1
MH		 657Mon Oct 6 12:47:32 1997 Manfred Hollstein (manfred@lts.sel.alcatel.de)
658
659 * m88k.c (m88k_begin_prologue): Remove superfluous backslash.
660
dc84d7bc
JL		 661Mon Oct 6 12:04:24 1997 Jeffrey A Law (law@cygnus.com)
662
663 * Makefile.in (check-g77): New test target.
664 (CHECK-TARGETS): Add check-g77.
665
c0da11c4
JM		 666Fri Oct 3 11:56:36 1997 Jason Merrill <jason@yorick.cygnus.com>
667
668 * toplev.c (rest_of_compilation): Defer all non-nested inlines.
669
d8d64559
MM		 670Fri Oct 3 15:49:27 1997 Michael Meissner <meissner@cygnus.com>
671
672 * flow.c (print_rtl_with_bb): Cast alloca return value for
673 in_bb_p.
674
e414ab29
RH		 675Thu Oct 2 21:15:03 1997 Richard Henderson <rth@cygnus.com>
676
677 * i386.h (RETURN_ADDR_RTX): New definition that works for
678 __builtin_return_address(0) and -fomit-frame-pointer.
679
15039abe
JW		 680Wed Oct 1 13:43:53 1997 Jim Wilson <wilson@cygnus.com>
681
682 Bring over from FSF.
683 Tue Aug 5 16:10:45 1997 Jason Merrill <jason@yorick.cygnus.com>
684
685 * mips.c (function_arg): Handle passing a struct
686 containing a double in a DFmode register without the PARALLEL.
687
281de624
ILT		 688Wed Oct 1 11:13:25 1997 Ian Lance Taylor <ian@cygnus.com>
689
d8d64559 690 * pexecute.c: Use spawn if __CYGWIN32__.
281de624 691
d8d64559 692 * pexecute.c: Include "config.h" first, as per autoconf manual
281de624
ILT		 693 (from Paul Eggert <eggert@twinsun.com>).
694
3cbdd5fc
PDM		 695Wed Oct 1 01:44:36 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
696
697 * m68k/x-mot3300 (XCFLAGS): Disable as's long/short jump
698 optimisation for f/expr.o and f/stb.o.
699
135d84b8
JL		 700Tue Sep 30 23:48:57 1997 Jeffrey A Law (law@cygnus.com)
701
702 * cse.c (this_insn_cc0_mode): Initialize.
703
55d89719
TK		 704Tue Sep 30 23:09:40 1997 Thomas Koenig <ig25@mvmap66.ciw.uni-karlsruhe.de>
705
d3878e49
TK		 706 * cccp.c (expand_to_temp_buffer): Initialize all members of obuf.
707
708 * haifa-sched.c (get_block_head_tail): Remove unneeded initialization.
55d89719 709
e9d0757e
RH		 710Tue Sep 30 23:06:43 1997 Richard Henderson <rth@cygnus.com>
711
712 * alpha.md (beq): For registers and ints 0-255, use cmpeq+bne, since
713 that pair will dual-issue on the 21164 and plus+beq won't.
714 (bne): Likewise for cmpeq+beq.
715
3f34faec
JW		 716Tue Sep 30 16:07:58 1997 Jim Wilson <wilson@cygnus.com>
717
718 * except.c (find_exception_handler_labels): Correct argument to free.
719
3226dac5 720Tue Sep 30 11:00:00 1997 Brendan Kehoe <brendan@lisa.cygnus.com>
988cea7d
BK		 721
722 * except.c (find_exception_handler_labels): Free LABELS when we're
723 done.
724
3a6eabfa
JL		 725Mon Sep 29 14:04:35 1997 Jeffrey A Law (law@cygnus.com)
726
727 * version.c: Bump for snapshot.
728
974c50f9
JM		 729Mon Sep 29 10:51:53 1997 Jason Merrill <jason@yorick.cygnus.com>
730
731 * flow.c (find_basic_blocks): Mark calls as potentially jumping
732 to the EH labels.
733
9b16d2c4
JL		 734Mon Sep 29 09:58:06 1997 Jeffrey A Law (law@cygnus.com)
735
736 * configure.in: Substitute for "install" too.
737 * configure: Rebuilt.
738
b1e3ddfd
AJ		 739Mon Sep 29 00:38:42 1997 Aaron Jackson <jackson@negril.msrce.howard.edu>
740
741 * Makefile.in (bootstrap-lean, compare-lean): New targets.
742
6662a38d
RH		 743Mon Sep 29 00:18:16 1997 Richard Henderson (rth@cygnus.com)
744
c02f035f
RH		 745 * alias.c (base_alias_check): Two symbols can conflict if they
746 are accessed via AND.
747 (memrefs_conflict_p): Likewise.
748
7a14fdc5
RH		 749 * alpha.h (SETUP_INCOMING_VARARGS): Emit a blockage insn
750 after flushing argument registers to the stack.
751
6662a38d
RH		 752 * Makefile.in (mostlyclean): Remove .regmove files.
753
f3447109
JM		 754Sun Sep 28 18:59:58 1997 Jason Merrill <jason@yorick.cygnus.com>
755
756 * libgcc2.c (__throw): Fix thinko.
757
37f6b6bf
MM		 758Sun Sep 28 12:00:52 1997 Mark Mitchell <mmitchell@usa.net>
759
760 * cplus-dem.c (demangle_template): Add new parameter. Handle new
761 template-function mangling.
762 (consume_count_with_underscores): New function.
763 (demangle_signature): Handle new name-mangling scheme.
764
adfc539e
PDM		 765Sun Sep 28 01:55:04 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
766
767 * flow.c (print_rtl_with_bb): Cast alloca return values for variables
768 start and end.
769
92cbe4d2
JL		 770Sun Sep 28 01:05:16 1997 Jeffrey A Law (law@cygnus.com)
771
772 * frame.c: Remove last change.
773 * dwarf2.h: Remove last change.
774 * tree.h: Add declarations of DWARF2 unwind info support
775 functions.
776
2f3ca9e7
JM		 777Sat Sep 27 11:02:38 1997 Jason Merrill <jason@yorick.cygnus.com>
778
779 * c-decl.c (init_decl_processing): Add __builtin_dwarf_reg_size.
780 * tree.h (built_in_function): Likewise.
781 * expr.c (expand_builtin): Likewise.
782 * except.h: Likewise.
783 * dwarf2out.c (expand_builtin_dwarf_reg_size): New fn.
784 * libgcc2.c (copy_reg): New fn.
785 (__throw): Use it.
786
407cb092
PE		 787Fri Sep 26 08:54:59 1997 Paul Eggert <eggert@twinsun.com>
788
789 * c-typeck.c (build_binary_op): Warn about comparing signed vs
790 unsigned if -W is specified and -Wno-sign-compare is not.
791 * c-decl.c (warn_sign_compare): Initialize to -1.
792 (c_decode_option): -Wall no longer implies -Wsign-compare.
793
3ba10494
AS		 794Fri Sep 26 09:00:13 1997 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
795
a7cc7f29
AS		 796 * frame.c: Include gansidecl.h for PROTO.
797 * dwarf2out.c: Move inclusion of dwarf2.h down so that PROTO is
798 defined. Don't declare dwarf2out_cfi_label here.
799 * dwarf2.h: Add declarations of DWARF2 unwind info support
800 functions.
801 * m68k.c: Include dwarf2.h.
802 (output_function_prologue): Add dwarf2 support.
803 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM): New macros.
804 (INCOMING_FRAME_SP_OFFSET): Likewise.
805
3ba10494
AS		 806 * integrate.c (expand_inline_function): Make sure there is at
807 least one insn that can be used as an insertion point.
808
c5cec899
JM		 809Wed Sep 24 21:34:06 1997 Jason Merrill <jason@yorick.cygnus.com>
810
811 * dwarf2out.c: s/flag_verbose_asm/flag_debug_asm/
812
e166cb18
JL		 813Wed Sep 24 22:05:30 1997 Jeffrey A Law (law@cygnus.com)
814
815 * version.c: Bump for snapshot.
816
01a94cba
DE		 817Wed Sep 24 17:36:23 1997 Doug Evans <dje@canuck.cygnus.com>
818
819 Bring over from FSF.
820
821 Wed Sep 24 19:17:08 1997 Doug Evans <dje@cygnus.com>
822
823 * sparc/sparc.md (get_pc_via_call): Renamed from get_pc_sp32.
824 (get_pc_via_rdpc): Renamed from get_pc_sp64.
825 * sparc/sparc.c (finalize_pic): Update call to gen_get_pc_via_call.
826
827 Wed Sep 24 18:38:22 1997 David S. Miller <davem@tanya.rutgers.edu>
828
829 * sparc/sparc.h (ASM_CPU_SPEC): Pass -Av9a for v8plus, ultrasparc.
830 (TARGET_OPTIONS): Add -malign-loops=, -malign-jumps=,
831 -malign-functions=.
832 (sparc_align_{loops,jumps,funcs}_string): Declare.
833 (sparc_align_{loops,jumps,funcs}): Declare.
834 (DEFAULT_SPARC_ALIGN_FUNCS): New macro.
835 (FUNCTION_BOUNDARY): Use sparc_align_funcs.
836 (STACK_BIAS): Define.
837 (SPARC_SIMM*_P): Cast to unsigned HOST_WIDE_INT first, then perform
838 test.
839 (SPARC_SETHI_P): New macro.
840 (CONST_OK_FOR_LETTER_P): Use it.
841 (ASM_OUTPUT_ALIGN_CODE): Define.
842 (ASM_OUTPUT_LOOP_ALIGN): Define.
843 * sparc/sparc.c (sparc_align_{loops,jumps,funcs}_string): New globals.
844 (sparc_align_{loops,jumps,funcs}): New globals.
845 (sparc_override_options): Handle -malign-loops=, -malign-jumps=,
846 -malign-functions=.
847 (move_operand): Use SPARC_SETHI_P.
848 (arith_double_operand): Cast to unsigned HOST_WIDE_INT first, then
849 perform test.
850 (arith11_double_operand): Likewise.
851 (arith10_double_operand): Likewise.
852 (finalize_pic): Finish sparc64 support.
853 (emit_move_sequence): Use SPARC_SETHI_P. Simplify low part of
854 64 bit constants if able.
855 (output_fp_move_quad): Don't use fmovq unless TARGET_HARD_QUAD.
856 (sparc_builtin_saveregs, sparc64 case): Don't save fp regs if
857 ! TARGET_FPU.
858 * sparc/sparc.md (*): Use GEN_INT instead of gen_rtx.
859 (get_pc_sp32): Use for sparc64 as well.
860 (lo_sum_di_sp{32,64}): Fix handling on 64 bit hosts.
861 (sethi_di_sp64_const): Likewise.
862 (movtf_cc_sp64): Check TARGET_HARD_QUAD.
863 (cmp_zero_extract_sp64): Use unsigned HOST_WIDE_INT in cast.
864 (ashlsi3, ashldi3, ashrsi3, ashrdi3, lshrsi3, lshrdi3): Likewise.
865
866 Tue Sep 23 19:02:46 1997 Doug Evans <dje@cygnus.com>
867
868 * sparc/linux-aout.h (COMMENT_BEGIN): Delete.
869 * sparc/linux.h (COMMENT_BEGIN): Likewise.
870 * sparc/linux64.h (COMMENT_BEGIN): Likewise.
871
872 Tue Sep 23 14:48:18 1997 David S. Miller <davem@tanya.rutgers.edu>
873
874 Add sparc64 linux support.
875 * configure.in (sparc64-*-linux*): Recognize. Add sparc/xm-sparc.h
876 to xm_file list on 32-bit sparc-linux.
877 * sparc/xm-sp64.h: New file.
878 * sparc/linux64.h: New file.
879 * sparc/xm-linux.h: Include some standard headers if not inhibit_libc.
880 Don't include xm-sparc.h.
881 * config/xm-linux.h (HAVE_PUTENV, HAVE_ATEXIT): Define.
882 * glimits.h (LONG_MAX): Handle sparc64.
883
884 Sat Sep 20 03:07:54 1997 Doug Evans <dje@cygnus.com>
885
886 * sparc/sysv4.h (ASM_COMMENT_START): Delete.
887 * sparc.h (ASM_COMMENT_START): Define.
888 * sparc.c (output_function_prologue): Use it.
889 (sparc_flat_output_function_{epi,pro}logue): Likewise.
890
891 Wed Sep 17 15:04:19 1997 Doug Evans <dje@cygnus.com>
892
893 * sparc/sysv4.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Delete,
894 use sparc.h's copies.
895 * sparc/sparc.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Print
896 ascii form as well.
897
898 Mon Sep 8 08:45:19 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
899
900 * sparc.c (dwarf2out_cfi_label): Add declaration.
901 (save_regs, output_function_prologue): Remove cast for it.
902 (sparc_flat_{save_restore,output_function_prologue): Likewise.
903 ({save,restore}_regs): No longer inline.
904
ce2157a1
JL		 905Tue Sep 23 12:34:51 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
906
907 * fold-const.c (make_range): Correctly handle cases of converting
908 from unsigned to signed type.
909
910Tue Sep 23 12:34:51 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
911
912 * fold-const.c (merge_ranges): Make sure that if one range is subset
913 of another, it will always be the second range. Correct (+,-) case to
914 account for this.
915
c5cec899
JM		 916Tue Sep 23 08:32:51 1997 Jason Merrill <jason@yorick.cygnus.com>
917
918 * final.c (final_end_function): Also do dwarf2 thing if
919 DWARF2_DEBUGGING_INFO.
920 (final_start_function): Likewise.
921
c107334d
DM		 922Tue Sep 23 01:15:50 1997 David S. Miller <davem@tanya.rutgers.edu>
923
e13a25d5
DM		 924 * expmed.c (expand_divmod): If compute_mode is not the same as
925 mode, handle the case where convert_modes() causes op1 to no
926 longer be a CONST_INT.
927
c107334d
DM		 928 * reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
929 note holding get_jump_flags() calculation to all JUMP_INSNs.
930 * rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.
931 * rtl.c (reg_note_name): Add new note types.
932
8d7532d9
JL		 933Tue Sep 23 00:59:54 1997 Jeffrey A Law (law@cygnus.com)
934
0774afd7 935 * rtlanal.c (computed_jump_p): Fix typo in last change.
8d7532d9 936
7019d00e
L		 937Tue Sep 23 00:42:44 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
938
939 * loop.c (indirect_jump_in_function_p): Return 0
940 by default.
941
b9dfb357
JL		 942Tue Sep 23 00:33:55 1997 Jeffrey A Law (law@cygnus.com)
943
944 * rs6000/xm-rs6000.h: Fix thinko in last change.
945 * rs6000/xm-sysv4.h: Likewise.
946
4b7e467b
JW		 947Mon Sep 22 19:33:53 1997 Jim Wilson <wilson@cygnus.com>
948
949 * mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.
950
8c8e6faa
JL		 951Mon Sep 22 14:41:00 1997 Jeffrey A Law (law@cygnus.com)
952
953 * reg-stack.c (find_blocks): Fix thinko in last change.
954
078e983e
AS		 9551997-09-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
956
957 * m68k.c (output_function_prologue): Add dwarf2 support.
958
959 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM,
960 INCOMING_FRAME_SP_OFFSET): New definitions.
961
d7027667
DM		 962Mon Sep 22 11:36:42 1997 David S. Miller <davem@tanya.rutgers.edu>
963
9524f769
DM		 964 * combine.c (try_combine): Use NULL_RTX instead of '0' where
965 appropriate in calls to gen_rtx().
966 * cse.c (cse_main): Likewise.
967 * emit-rtl.c (gen_label_rtx): Likewise.
968 * expr.c (init_expr_once): Likewise.
969 * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
970 sched_analyze, init_rgn_data_dependences,
971 compute_block_backward_dependences): Likewise.
972 * sched.c (schedule_insns): Likewise.
973 * varasm.c (immed_double_const): Likewise.
974
d7027667
DM		 975 * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
976 SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
977
fbf8b71c
KJ		 978Mon Sep 22 11:21:33 1997 J. Kean Johnston <jkj@sco.com>
979
980 * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
981 (MULTILIB_DEFAULTS): Define.
982 (ASM_SPEC, CPP_SPEC): Handle -mcoff.
983 (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
984 (LIBGCC_SPEC): Likewise.
985 (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
986 (SUBTARGET_SWITCHES): Add -mcoff and -melf.
987 * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
988 (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
989 (EXTRA_PARTS, TAROUTOPTS): Delete.
990 (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
991 (MULTILIB_OPTIONS): Define.
992 (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
993 (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
994
c14a951f
JL		 995Mon Sep 22 02:10:43 1997 Jeffrey A Law (law@cygnus.com)
996
997 * version.c: Bump for snapshot.
998
7014927a
JL		 999Sun Sep 21 17:45:45 1997 Jeffrey A Law (law@cygnus.com)
1000
37aa45a2
JL		 1001 * loop.c (loop_number): Delete function. Change all references
1002 to use uid_loop_num array.
1003 * loop.h (loop_number): Delete declaration.
1004 * unroll.c (unroll_loop): Change "loop_number" references to
1005 use uid_loop_num instead.
1006
b47404d1
JL		 1007 * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
1008 conditional.
1009 (loop_unroll_iter): Remove unused variable and all references.
1010 (loop_optimize): Always allocate and clear space for loop_unroll_factor.
1011 (insert_bct): Fix minor formatting problems.
1012 * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
1013 (loop_unroll_iter): Removed unused decl.
1014 * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
1015 Always record the unrolling factor.
1016
cb3bb2a7
JL		 1017 * cse.c (simplify_relational_operation): Set h0u just like h0s.
1018 Similarly for h1u and h1s.
1019
d5ff3a2e 1020 * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
2a1777af
JL		 1021 (find_basic_blocks): Use computed_jump_p to determine if a
1022 particular JUMP_INSN is a computed jump.
1023 * reg-stack.c (find_blocks): Use computed_jump_p to determine
1024 if a particular JUMP_INSN is a computed jump.
1025 * rtlanal.c (jmp_uses_reg_or_mem): New function.
1026 (computed_jump_p): Likewise.
1027 * rtl.h (computed_jump_p): Declare.
1028 * genattrtab.c (pc_rtx): Define and initialize.
1029 * loop.c (loop_optimize): Always determine if the current
1030 function has a computed jump.
1031 (indirect_jump_in_function_p): Use computed_jump_p to determine
1032 if a particular JUMP_INSN is a computed jump.
1033
7014927a
JL		 1034 * loop.c (fix_bct_param): Delete unused function.
1035 (check_bct_param): Likewise.
1036
6d53d7c2
JM		 1037Sat Sep 20 16:22:06 1997 Jason Merrill <jason@yorick.cygnus.com>
1038
1039 * frame.c (__deregister_frame): Check properly for initialized object.
1040
5a5e9503 1041Fri Sep 19 20:51:03 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
71e4fbe6
L		 1042
1043 * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
1044
272299b9
R		 1045Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1046
cc5e1642
R		 1047 * jump.c (thread_jumps): check can_reverse_comparison_p before
1048 threading a reversed-condition jump.
1049
272299b9
R		 1050 * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
1051 * haifa-sched.c (update_flow_info): Likewise.
1052
18511014
JL		 1053Thu Sep 18 21:13:40 1997 Jeffrey A Law (law@cygnus.com)
1054
e6493727
JL		 1055 * Makefile.in (BOOT_CFLAGS): Use -O2.
1056
1e467e19
JL		 1057 * configure.in (strtoul, bsearch): Have autoconf check for these
1058 functions.
1059 * configure, config.in: Rebuilt.
1060
18511014
JL		 1061 * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
1062 * mips/mips.h (alloca): Likewise.
1063 * rs6000/xm-rs6000.h (alloca): Likewise.
1064 * rs6000/xm-sysv4.h: Likewise.
1065
6020d360
JM		 1066Thu Sep 18 14:22:22 1997 Jason Merrill <jason@yorick.cygnus.com>
1067
1068 * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
1069 * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
1070 (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
1071
1072 * except.c (end_eh_unwinder): Subtract 1 from return address.
1073 * libgcc2.c (__throw): Likewise.
1074 (find_exception_handler): Don't change PC here. Compare end with >.
1075
b24bcfb3
NC		 1076Thu Sep 18 10:43:07 1997 Nick Clifton <nickc@cygnus.com>
1077
1078 * v850.c (compute_register_save_size): Correct register
1079 number.
1080 * v850.md (save_interrupt, return_interrupt): Correct
1081 register number.
1082 * v850/lib1funcs.asm (save_interrupt): Correct register number.
1083 (return_interrupt): Use stack pointer, not element pointer.
1084
93cf819d
BK		 10851997-09-18 Brendan Kehoe <brendan@lisa.cygnus.com>
1086
1087 * configure.in, configure: Make sure to create the stage* and include
1088 symbolic links in each subdirectory.
1089
f0501149
JL		 1090Thu Sep 18 01:47:06 1997 Jeffrey A Law (law@cygnus.com)
1091
1092 * pa.md (reload_peepholes): Don't allow addresses with side
1093 effects for the memory operand.
1094
4f870c04
JM		 1095Wed Sep 17 18:19:53 1997 Jason Merrill <jason@yorick.cygnus.com>
1096
1097 * libgcc2.c (find_exception_handler): Subtract one from our PC when
1098 looking for a handler, to avoid hitting the beginning of the next
1099 region.
1100
1101 * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
1102
4eb66248
JL		 1103Wed Sep 17 18:33:59 1997 Jeffrey A Law (law@cygnus.com)
1104
1105 * mips/abi64.h (LONG_MAX_SPEC): Define.
1106 * mips.h (LONG_MAX_SPEC): Define.
1107 (CPP_SPEC): Include long_max_spec.
1108 (EXTRA_SPECS): Include long_max_spec.
1109
44158507
JL		 1110Wed Sep 17 14:11:38 1997 Jeffrey A Law (law@cygnus.com)
1111
1112 * v850.c (construct_save_jarl): Fix thinko in last change.
1113
bf520cd9
JL		 1114Wed Sep 17 09:53:07 1997 Jeffrey A Law (law@cygnus.com)
1115
1116 * version.c: Bump for snapshot.
1117
255fe733
JM		 1118Tue Sep 16 14:22:36 1997 Jason Merrill <jason@yorick.cygnus.com>
1119
c0727e2a
JM		 1120 * libgcc2.c (find_exception_handler): Not found is -1.
1121
255fe733
JM		 1122 * integrate.c (expand_inline_function): Move expand_start_bindings
1123 after expanding the arguments.
1124
21002281
JW		 1125Tue Sep 16 11:13:46 1997 Jim Wilson <wilson@cygnus.com>
1126
1127 * expr.c (expand_expr): Remove previous incorrect change.
1128 If target and slot has no DECL_RTL, then call mark_addressable
1129 again for the slot after we give it RTL.
1130
e693cc28 1131Tue Sep 16 09:18:52 1997 Jason Merrill (jason@cygnus.com)
f633220c 1132
e693cc28
UD		 1133 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1134 again for the slot after we give it RTL.
f633220c 1135
145870b5
NC		 1136Tue Sep 16 00:13:20 1997 Nick Clifton <nickc@cygnus.com>
1137
84e75068 1138 * v850.c (register_is_ok_for_epilogue,
145870b5
NC		 1139 pattern_is_ok_for_epilogue, construct_restore_jr,
1140 pattern_is_ok_for_prologue, construct_save_jarl): New functions.
1141
84e75068 1142 * v850.h (pattern_is_ok_for_prologue,
145870b5
NC		 1143 pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
1144 predicates.
1145
84e75068 1146 * v850.md: Replace prologue and epilogue patterns with a
145870b5
NC		 1147 match_parallel pattern.
1148
76143254
JL		 1149Mon Sep 15 22:53:01 1997 Jeffrey A Law (law@cygnus.com)
1150
1151 * aclocal.m4: Add replacement for AC_PROG_INSTALL.
1152 * configure.in: Use EGCS_PROG_INSTALL.
1153
4401bf24
JL		 1154Mon Sep 15 22:40:55 1997 Jim Wilson (wilson@cygnus.com)
1155
1156 * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
1157 extern inline function.
1158
1159Mon Sep 15 22:40:55 1997 Richard Henderson (rth@cygnus.com)
1160
1161 * dwarf2out.c (reg_loc_descriptor): Fix prototype.
1162 (concat_loc_descriptor): New function.
1163 (loc_descriptor): Call it.
1164 (add_AT_location_description): Also elide the descriptor if both
1165 halves of a CONCAT are pseudos.
1166 (add_location_or_const_value_attribute): Recognize CONCAT too.
1167
0d24ff5d
RH		 1168Mon Sep 15 15:24:00 1997 Richard Henderson <rth@cygnus.com>
1169
4bb43724
RH		 1170 * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
1171
0d24ff5d
RH		 1172 * alpha/alpha.c (output_prolog): New variable sa_reg. Use it for
1173 out-or-range reg_offset.
1174 (output_epilog): Likewise.
1175
05ef8897
JL		 1176Mon Sep 15 15:39:26 1997 Jeffrey A Law (law@cygnus.com)
1177
1178 * cse.c (simplify_relational_operation): If MODE specifies a
1179 mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
1180 is derived from the sign bit of the low word.
1181
ca55abae
JM		 1182Mon Sep 15 11:43:38 1997 Jason Merrill <jason@yorick.cygnus.com>
1183
1184 Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
1185
1186 * dwarf2.h: Add DW_CFA_GNU_args_size.
1187 * frame.c (execute_cfa_insn): Likewise.
1188 * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
1189 (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
1190 (dwarf2out_frame_debug): If this isn't a prologue or epilogue
1191 insn, hand it off to dwarf2out_stack_adjust.
1192 (dwarf2out_begin_prologue): Initialize args_size.
1193 * frame.h (struct frame_state): Add args_size.
1194 * libgcc2.c (__throw): Use args_size.
1195 * final.c (final_scan_insn): If we push args, hand off all insns
1196 to dwarf2out_frame_debug.
1197 * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
1198
1199 * dwarf2out.c dwarf2out_frame_debug): Fix typo.
1200 Handle epilogue restore of SP from FP.
1201 * emit-rtl.c (gen_sequence): Still generate a sequence if the
1202 lone insn has RTX_FRAME_RELATED_P set.
1203
1204 * frame.c (extract_cie_info): Handle "e" augmentation.
1205 * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
1206 absence of UNALIGNED_*_ASM_OP.
1207 (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
1208 (output_call_frame_info): Use "e" instead of "z" for augmentation.
1209 Don't emit augmentation fields length.
1210 (dwarf2out_do_frame): Move outside of #ifdefs.
1211 * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
1212 opcodes.
1213
1214 * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
1215 * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
1216 * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
1217 * sparc/sun4gas.h: New file.
1218 * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
1219
1220 * collect2.c (write_c_file_stat, write_c_file_glob): Declare
1221 __register_frame_table and __deregister_frame.
1222
1d77fa53
BK		 12231997-09-15 Brendan Kehoe <brendan@cygnus.com>
1224
1225 * except.c (find_exception_handler_labels): Use xmalloc instead of
1226 alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
1227 in some cases.
1228
8be52aaa
JL		 1229Sun Sep 14 21:01:23 1997 Jeffrey A Law (law@cygnus.com)
1230
1231 * Makefile.in: Various changes to build info files
1232 in the object tree rather than the source tree.
1233
a3ee3246
JL		 1234Sun Sep 14 12:24:30 1997 Jeffrey A Law (law@cygnus.com)
1235
1236 * fixinc.math: New file to fix math.h on some systems.
1237 * configure.in (freebsd, netbsd): Use fixinc.math on these
1238 systems.
1239 * configure: Rebuilt.
1240
124da275
JL		 1241Sun Sep 14 11:11:05 1997 Jeffrey A Law (law@cygnus.com)
1242
1243 * regmove.c (regmove_optimize): If we end up moving the
1244 original insn due to lifetime overlaps, make sure to move
1245 REG_NOTES too.
1246
fca9d4b0
MH		 1247Sat Sep 13 15:51:11 1997 Manfred Hollstein <manfred@s-direktnet.de>
1248
1249 * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
1250
326ee7a3
JL		 1251Sat Sep 13 12:57:26 1997 Jeffrey A Law (law@cygnus.com)
1252
1253 * haifa-sched.c (add_branch_dependences): Make each insn in
1254 a SCHED_GROUP_P block explicitly depend on the previous insn.
1255
ca55abae
JM		 1256Fri Sep 12 13:49:58 1997 Jason Merrill <jason@yorick.cygnus.com>
1257
1258 * except.h: Prototype dwarf2 hooks.
1259 * expr.c: Adjust.
1260
5188d2b2
JW		 1261Thu Sep 11 17:43:55 1997 Jim Wilson <wilson@cygnus.com>
1262
1263 * configure.in (native_prefix): Delete.
1264 (mips-dec-netbsd): Don't set prefix.
1265 (*linux*): Don't set prefix.
1266
2e384318
FF		 1267Thu Sep 11 15:48:32 1997 Fred Fish <fnf@ninemoons.com>
1268
70988851
FF		 1269 * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
1270 defined. If not defined, include <sys/varargs.h> if
1271 HAVE_SYS_VARARGS_H is defined.
1272 * configure.in: Test for varargs.h and sys/varargs.h.
1273 * configure: Regenerate with autoconf.
1274 * config.in: Regenerate with autoheader.
1275
2e384318
FF		 1276 * cpplib.c (quote_string): Cast first arg of sprintf call
1277 from "unsigned char *" to "char *".
1278 (output_line_command): Ditto.
1279 (macroexpand): Ditto.
1280 (do_line): Cast atoi arg from "unsigned char *" to "char *".
1281
3fb2f401
JL		 1282Wed Sep 10 21:37:30 1997 Jeffrey A Law (law@cygnus.com)
1283
f2e4e16f
JL		 1284 * version.c: Bump for snapshot.
1285
3fb2f401
JL		 1286 * Makefile.in (compare): Exit with nonzero status if there
1287 are comparison failures. Note which files failed the
1288 comparison test in .bad_compare.
1289
d26cb668
L		 1290Wed Sep 10 17:05:46 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1291
1292 * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
1293
ac64120e
JW		 1294Wed Sep 10 16:37:28 1997 Fred Fish <fnf@ninemoons.com>
1295
1296 * Makefile.in (LN, LN_S): New macros, use where appropriate.
1297 * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
1298 * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
1299 * configure: Regenerated.
1300
1301Thu Sep 11 11:09:43 1997 Jeffrey A Law (law@cygnus.com)
1302
1303 * loop.c (strength_reduce): Fix typo.
1304
db87ec0b
JW		 1305Wed Sep 10 16:01:15 1997 Jim Wilson <wilson@cygnus.com>
1306
1307 * m88k/m88k.c (struct option): Rename to struct options.
1308 * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
1309 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
1310 * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
1311 __DOLPHIN__ or sysV88.
1312
04395f96
JW		 1313Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
1314
1315 * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
1316 create new subreg.
1317
becdcf6d
JL		 1318Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
1319
1320 * config.sub: Accept 'amigados' for backward compatability.
1321
04395f96 1322Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
3979dfb8
JW		 1323
1324 * Makefile.in (testsuite/site.exp): New target.
1325 (check-gcc, check-g++): Depend on testsuite/site.exp.
1326 Don't stop for failure.
1327
ca55abae
JM		 1328Wed Sep 10 12:59:57 1997 Jason Merrill <jason@yorick.cygnus.com>
1329
1330 * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
1331 if DWARF2_UNWIND_INFO.
1332
1333Wed Sep 10 11:49:20 1997 Jason Merrill <jason@yorick.cygnus.com>
1334
1335 Add support for exception handling using DWARF 2 frame unwind info.
1336 Currently works on SPARC and MIPS, and almost on x86.
1337
1338 * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
1339 next_stack_level, in_reg_window): Helper fns.
1340 (__throw): Implement for DWARF2_UNWIND_INFO.
1341
1342 * expr.c (expand_builtin): Handle builtins used by __throw.
1343 * tree.h (enum built_in_function): Add builtins used by __throw.
1344 * c-decl.c (init_decl_processing): Declare builtins used by __throw.
1345 * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
1346 * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
1347 (expand_builtin_extract_return_addr): Likewise.
1348 (expand_builtin_frob_return_addr): Likewise.
1349 (expand_builtin_set_return_addr_reg): Likewise.
1350 (expand_builtin_eh_stub): Likewise.
1351 (expand_builtin_set_eh_regs): Likewise.
1352 (eh_regs): Choose two call-clobbered registers for passing back values.
1353
1354 * frame.c, frame.h: New files for parsing dwarf 2 frame info.
1355 * Makefile.in (LIB2ADD): New variable. Add $(srcdir)/frame.c.
1356 (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
1357 (stmp-multilib): Likewise.
1358 ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
1359
1360 * except.c: #include "defaults.h".
1361 (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
1362 (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
1363 (register_exception_table_p): New fn.
1364 (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
1365 (end_eh_unwinder): Likewise.
1366
1367 * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
1368 call __register_frame and __deregister_frame as needed.
1369 * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
1370 * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro. Check
1371 EH_FRAME_SECTION_ASM_OP.
1372 * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
1373 * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
1374 (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
1375
1376 * dwarf2out.c (output_call_frame_info): If no support for
1377 EXCEPTION_SECTION, mark the start of the frame info with a
1378 collectable tag.
1379 * collect2.c (frame_tables): New list.
1380 (is_ctor_dtor): Recognise frame entries.
1381 (scan_prog_file): Likewise.
1382 (main): Pass -fno-exceptions to sub-compile. Also do collection
1383 if there are any frame entries.
1384 (write_c_file_stat): Call __register_frame_table and
1385 __deregister_frame as needed.
1386 (write_c_file_glob): Likewise.
1387
1388 * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
1389 Also require unaligned reloc support.
1390 * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
1391 UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
1392 * sparc/sysv4.h: Not here.
1393
1394 * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
1395 * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
1396 (dwarf2out_finish): Don't call dwarf2out_frame_finish.
1397
1398 * libgcc2.c (L_eh): Reorganize, moving code shared by different
1399 EH implementations to the top.
1400 (find_exception_handler): Split out. Start from 0. Compare against
1401 end with >=.
1402 (__find_first_exception_table_match): Use it.
1403 * except.c (output_exception_table): Don't do anything if there's
1404 no table. Don't output a first entry of zeroes.
1405 (eh_outer_context): Adjust properly.
1406 (add_eh_table_entry): Use xrealloc.
1407 * toplev.c (compile_file): Just call output_exception_table.
1408
1409Wed Sep 10 11:30:36 1997 Jason Merrill <jason@cygnus.com>
1410
1411 * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
1412
1413Wed Sep 10 08:17:10 1997 Torbjorn Granlund <tege@pdc.kth..se>
1414
1415 * except.c (eh_outer_context): Do masking using expand_and.
1416
b4d940a2
JL		 1417Wed Sep 10 01:38:30 1997 Doug Evans <dje@cygnus.com>
1418
1419 Add port done awhile ago for the ARC cpu.
1420 * arc/arc.h: New file.
1421 * arc/arc.c: New file.
1422 * arc/arc.md: New file.
1423 * arc/initfini.c: New file.
1424 * arc/lib1funcs.asm: New file.
1425 * arc/t-arc: New file.
1426 * arc/xm-arc.h: New file.
1427 * ginclude/va-arc.h: New file.
1428 * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
1429 * ginclude/varargs.h: Likewise.
1430 * Makefile.in (USER_H): Add va-arc.h.
1431 * configure.in (arc-*-elf*): Recognize.
1432 * longlong.h: Add ARC support.
1433
1434Wed Sep 10 01:32:54 1997 Jeffrey A Law (law@cygnus.com)
1435
1436 * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
1437 when clearing non-BLKmode data.
1438
10211581
JL		 1439Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
1440
9dfc6eba
MH		 1441 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
1442 * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
1443
55259219
MH		 1444 * xm-m88k.h (USG): Only define if it hasn't already been defined.
1445
1446 * Makefile.in (risky-stage1): Delete gratutious whitespace.
1447
ee291069
MH		 1448 * Makefile.in (clean): Delete libgcc1-test.
1449
10211581
JL		 1450 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
1451
1452Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
48f0be1b
SC		 1453
1454 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
1455 template.
1456
ca55abae
JM		 1457Tue Sep 9 09:50:02 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
1458
1459 * dwarf2out.c (output_call_frame_info): Call named_section.
1460
8f3d79e0
JL		 1461Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
1462
1463 * haifa-sched.c (print_value): Fix last change.
1464
ca55abae
JM		 1465Tue Sep 9 01:30:37 1997 Jason Merrill <jason@yorick.cygnus.com>
1466
1467 * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
1468 write_symbols.
1469
1470Mon Sep 8 16:32:43 1997 Jason Merrill <jason@yorick.cygnus.com>
1471
1472 * mips.c (function_prologue): Set up the CFA when ABI_32.
1473
1474 * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
1475 for dwarf2 unwind info.
1476 (output_function_prologue, sparc_flat_output_function_prologue): Same.
1477
1478 * final.c (final_end_function): Check dwarf2out_do_frame instead
1479 of DWARF2_DEBUG for dwarf2 unwind info.
1480 (final_scan_insn): Likewise.
1481 (final_start_function): Likewise. Initialize dwarf2 frame debug here.
1482 (final): Not here.
1483
1484 * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
1485 count > 0.
1486
1487 * varasm.c (exception_section): Check EXCEPTION_SECTION first.
1488
74aca74b
NC		 1489Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
1490
1491 * v850.h (ASM_SPEC): Pass on target processor.
1492 (CPP_PREDEFINES): Only define if not already specified.
1493 (TARGET_VERSION): Only define if not already specified.
1494 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
1495 processor.
1496 (EXTRA_SWITCHES): Extra entries in the switches array.
1497 (TARGET_DEFAULT): Set default target processor.
1498
c0b04148
JW		 1499Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
1500
1501 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
1502 cases, add %# and %/, and add : to make them into extended asms.
1503
52b7724b
WL		 1504Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
1505
1506 * alias.c (init_alias_analysis): Clean up incompatible pointer
1507 type warning in bzero.
1508 * regmove.c (regmove_optimize): Ditto.
1509 * haifa-sched.c (find_rgns): Ditto.
1510
1511 * haifa-sched.c (print_value): Clean up ptr->int cast
1512 warnings.
1513
0c82f6bf
FF		 1514Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
1515
1516 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
1517 * install.texi (Configurations): Ditto.
1518 * config.sub: Ditto.
1519
1fed1f51
WL		 1520Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
1521
1522 * Makefile.in (sdbout.o): Depend on insn-config.h.
1523
239e68f6
JW		 1524Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
1525
1526 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
1527 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
1528
267c09ab
JM		 1529Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
1530
1531 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
1532 prologue insn, only the first elt is significant.
1533 (output_call_frame_info): For exception handling, always use 4-byte
1534 fields as specified by the dwarf2 spec.
1535 Don't skip trivial FDEs.
1536
db7cafb0
JL		 1537Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
1538
1539 * version.c: Bump for snapshot.
1540
1541Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
1542
1543 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
1544 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
1545 when op1_is_pow2.
1546
1547Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
1548
bf520cd9
JL		 1549 * final.c (shorten_branches): During first pass, assume worst
1550 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
db7cafb0
JL		 1551
1552 * Makefile.in (distclean): Remove various things left around
1553 by running the testsuite.
1554
7ed46111
MH		 1555Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
1556
1557 * configure.in (out_file): Emit definition to config.status in order
1558 to have a defined value for configure.lang.
1559 * configure: Re-built.
1560
e41cea70
JJH		 1561Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
1562
bf520cd9 1563 * configure.in: Make symlink to as-new rather than as.new. Similarly
e41cea70
JJH		 1564 for ld-new.
1565 * configure: Rebuilt.
1566
1aeb1f6f
JW		 1567Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
1568
1569 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
1570
770a0113
CK		 1571Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
1572
1573 * sparc/sparc.md: Add ultrasparc scheduling support.
1574 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
1575
f5ffa999
PDM		 1576Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
1577
1578 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
1579 as initial value for real_label_map.
1580 (copy_for_inline): Likewise.
1581
acceac1a
R		 1582Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1583
1584 * sched.c (update_flow_info) When looking if to set found_split_dest
1585 or found_orig_dest, look at all parts of a PARALLEL.
1586 * haifa-sched.c (update_flow_info): Likewise.
1587
f84271d9
JL		 1588Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
1589
1590 * v850: New directory for v850 port.
1591 * v850/lib1funcs.asm: New file.
1592 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
1593 * ginclude/va-v850.h: New file.
1594 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
1595 * configure.in (mn10200-*-*): New target.
1596 * configure: Rebuilt.
1597 * config.sub: Handle v850-elf.
1598 * Makefile.in (USER_H): Add va-mn10200.h.
1599 * invoke.texi: Document v850 stuff.
1600
89cc6098
JW		 1601Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
1602
04940ba5
JW		 1603 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
1604 has integer TYPE_{MAX,MIN}_VALUE before using them.
1605
89cc6098
JW		 1606 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
1607 __HPUX_ASM__ versions.
1608
c74f7db8
JL		 1609Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
1610
bf520cd9 1611 * install.sh: Delete duplicate install script.
c74f7db8 1612
914ec131
SC		 1613Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
1614
1615 * reg-stack.c (subst_stack_regs): Pop the stack register for a
1616 computed goto which sets the same stack register.
1617
1618 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
1619 destination are both on the regstack.
1620 (subst_stack_regs_pat): Put the destination at the top of the regstack.
1621
c1090daa
JW		 1622Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
1623
d5d1738a
JW		 1624 * mips.md (nonlocal_goto_receiver): Define.
1625
f4da7881
JW		 1626 * profile.c (output_arc_profiler): Check next_insert_after for non
1627 NULL before deferencing it.
1628
c1090daa
JW		 1629 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
1630
da594c94
JL		 1631Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
1632
1633 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
1634
3e28fe44
MM		 1635Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
1636
1637 * toplev.c (rest_of_compilation): For passes starting with
1638 flow_analysis, use print_rtl_with_bb instead of print_rtl.
1639
1640 * print-rtl.c (print_rtl_single): Print a single rtl value to a
1641 file.
1642
1643 * flow.c (print_rtl_with_bb): Print which insns start and end
1644 basic blocks. For the start of a basic block, also print the live
1645 information.
1646
7053ca72
JW		 1647Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
1648
417b0fa2
JW		 1649 * toplev.c (main): Change #elif to #else/#ifdef
1650
7053ca72
JW		 1651 * tlink.c: Include ctype.h.
1652 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
1653
f05a8b25
MM		 1654Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
1655
1656 * bitmap.c: Conditionally include stdlib.h.
bf520cd9 1657 (free): Provide a declaration if NEED_DECLARATION_FREE.
f05a8b25 1658
02d7a569
JS		 1659Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
1660
1661 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
1662
6030b6af
JW		 1663Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
1664
1665 * profile.c (output_arc_profiler): Verify next_insert_after is an
1666 INSN before and after skipping a stack pop.
1667
04da53bd
R		 1668Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1669
1670 * final.c (shorten_branches): Don't count the lengths of deleted
1671 instructions.
1672
780532a4
JL		 1673Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
1674
1675 * version.c: Bump for snapshot.
1676
22fa5b8a
MM		 1677Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
1678
1679 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
1680 two bitmaps ANDed together.
1681 (bitmap_print): Declare.
1682
1683 * bitmap.c (function_obstack): Don't declare any more.
1684 (bitmap_obstack): Obstack for allocating links from.
1685 (bitmap_obstack_init): New static to say whether to initialize
1686 bitmap_obstack.
1687 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
1688 (bitmap_release_memory): Free all memory allocated from
1689 bitmap_obstack.
1690
1691 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
1692 EXECUTE_IF_AND_IN_BITMAP.
1693
57163df0
JW		 1694Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
1695
fa8b6024
JW		 1696 * alias.c (true_dependence): Address with AND can alias scalars.
1697 (anti_dependence, output_dependence): Likewise.
1698
57163df0
JW		 1699 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
1700
8aa4e786
JS		 1701Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
1702
1703 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
1704 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
1705 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
1706 definitions. Use -qrtems instead of -mrtems.
1707
feb21122
RL		 1708Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
1709
1710 * xm-sco5.h (sys_siglist): Define.
1711 (SYS_SIGLIST_DECLARED): Likewise.
1712
704af6a1
JL		 1713Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
1714
1715 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
1716
127cd405
TG		 1717Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
1718
1719 * except.c (eh_outer_context): Expand masking operation using
1720 expand_binop.
1721
8cf02b47
JW		 1722Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
1723
1724 * alpha.md (floatdisf2-1): New pattern.
1725
49dad301
JL		 1726Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
1727
068f1cb8
JL		 1728 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
1729 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
f04e7122 1730 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
068f1cb8
JL		 1731 * gcc.texi: Note that if you define sys_siglist that you should
1732 also define SYS_SIGLIST_DECLARED.
1733
49dad301
JL		 1734 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
1735 are relative to the next instruction, not the current instruction.
1736
a1729519
JW		 1737Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
1738
1739 * local-alloc.c (contains_replace_regs): New function.
1740 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
1741 verify that there is no existing REG_EQUIV note, and add a call to
1742 contains_place_regs.
1743
290c8b1f
L		 1744Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1745
1746 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
1747 (STARTFILE_SPEC): Always use crtbegin.o%s
1748 (ENDFILE_SPEC): Always use crtend.o%s.
1749
a6a503ed
JW		 1750Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
1751
1752 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
1753 is passed in.
1754 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
1755 SFmode for 64 bit hosts.
1756
a94729bc
PH		 1757Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
1758
1759 * fixincludes: Permits spaces between # and define. Discard C++
1760 comments in sys/pci.h on HP/UX 10.20.
1761
c9e03727
JL		 1762Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
1763
1764 * version.c: Bump for snapshot.
1765
2eddfed1
JL		 1766 * pa.c (restore_unscaled_index_insn_codes): New function.
1767 (record_unscaled_index_insn_codes): Likewise.
1768 (output_function_prologue): Call restore_unscaled_index_insn_codes.
1769 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
1770 (pa_reorg): Call record_unscaled_index_insn_codes.
1771
c9e03727
JL		 1772 * haifa-sched.c (move_insn): Handle notes correctly for insns
1773 with SCHED_GROUP_P set.
1774
a5d6a95b
L		 1775Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1776
1777 * alpha/xm-linux.h (USE_BFD): Undef before define.
1778
bc4ddc77
JW		 1779Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
1780
1781 * cse.c (cse_insn): Don't record BLKmode values.
1782
f3e0ca6c
SW		 1783Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
1784
1785 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
1786
e3512ac2
JL		 1787Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
1788
a63d08e6
JL		 1789 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
1790 * collect2.c (sys_errlist): Likewise.
1791 * cpplib.c (sys_errlist): Likewise.
1792 * gcc.c (sys_errlist): Likewise.
1793 * protoize (sys_errlist): Likewise.
1794 * configure.in: Check for strerror.
1795 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
1796 * xm-gnu.h (HAVE_STRERROR): Likewise.
1797 * xm-linux.h (HAVE_STRERROR): Likewise.
1798 * xm-netbsd.h (HAVE_STRERROR): Likewise.
1799 * xm-bsd386.h (HAVE_STRERROR): Likewise.
1800 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
1801 * xm-dos.h (HAVE_STRERROR): Likewise.
1802 * xm-mingw32.h (HAVE_STRERROR): Likewise.
1803 * xm-pa.h (HAVE_STRERROR): Likewise.
1804 * xm-papro.h (HAVE_STRERROR): Likewise.
1805 * xm-sysv4.h (HAVE_STRERROR): Likewise.
1806 * configure, config.in: Rebuilt.
1807
db814993
JL		 1808 * Makefile.in: Add several missing "else true" clauses.
1809
e3512ac2
JL		 1810 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
1811 * mips-tfile.c: Likewise.
1812 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
1813 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
1814 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
1815 * configure.in: Check for sys_siglist declaration.
1816 * configure, config.in: Rebuilt.
1817
5d84b57e
JS		 1818Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
1819
1820 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
1821 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
1822 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
1823 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
1824 * rs6000/sysv4.h (extra_subtarget_switches): Added new
1825 macro EXTRA_SUBTARGET_SWITCHES.
1826 * configure.in (sh*-*-rtems*): New target.
1827 * sh/rtems.h: New file.
1828 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
1829 * configure: Rebuilt.
1830
2599dcc7
JW		 1831Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
1832
1833 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
1834
3b7e5ef4
DE		 1835Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
1836
1837 * rs6000.md: Make DF fused-add operations pay attention to
1838 -mno-fused-add.
1839
5cd5f4a7
JW		 1840Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
1841
1842 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
1843
63e7fe9b
JL		 1844Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
1845
1846 * pa.md (reload_peepholes): Make sure operand is a REG before
1847 examining REGNO. Allow general registers too.
1848
eb7b11fd
JW		 1849Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
1850
1851 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
1852
c760091a
PT		 1853Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
1854
5cd5f4a7 1855 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
c760091a
PT		 1856 to reallocate abbrev_die_table.
1857
57583338
JW		 1858Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
1859
1860 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
1861
eae4b970
AS		 18621997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
1863
4f91a0f8
AS		 1864 * Makefile.in (config.status): Depend on version.c
1865
eae4b970
AS		 1866 * expr.h (insn_gen_function): Reenable prototype.
1867
1868 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
1869 first parameter.
1870
00fc09e1
JW		 1871Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
1872
1873 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
1874
2601ebca
JL		 1875Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
1876
1877 * version.c: Bump for latest snapshot.
1878
1879 * bc-optab.c: Conditionally include stdlib.h.
1880 (free): Provide a declaration if NEED_DECLARATION_FREE.
1881 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
1882 * rtl.h (free): Remove declaration.
1883 * tree.h (free): Remvoe declaration.
1884
1885 * configure: Rebuilt.
1886
e5eb27e5
JL		 1887Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
1888
1889 * flags.h (flag_move_all_movables): Declare.
1890 (flag_reduce_all_givs): Likewise.
1891 * loop.c (move_movables): Handle flag_move_all_movables.
1892 (strength_reduce): Handle flag_reduce_all_givs.
1893 * toplev.c (flag_move_all_movables): Define.
1894 (flag_reduce_all_givs): Likewise.
1895 (f_options): Add -fmove-all-movables and -freduce-all-givs.
1896 * invoke.texi: Document new options, including alias stuff that
1897 wasn't included last time.
1898
d995a6dc
BM		 1899Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
1900
1901 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
1902 * t-mn10200: Ditto.
1903 * t-vxsparc: Ditto.
1904 * t-vxworks68: Ditto.
1905 * t-vxworks960: Ditto.
1906 * t-vx29k: Ditto.
1907
ba64ca33
RH		 1908Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
1909
1910 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
1911 if not already defined, and USE_C_ALLOCA not defined.
1912
ca20876d
JW		 1913Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
1914
7818d6fc
JW		 1915 * config.guess: Replace with script that uses ../config.guess.
1916
ca20876d
JW		 1917 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
1918 if USE_GNULIBC_1 is not defined.
1919
704a6306
RH		 1920Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
1921
1922 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
1923 * config.guess: Recognize alpha-linux-gnulibc1.
1924 * configure.in (alpha-*-linux-gnulibc1): New target.
1925 (alpha-*-linux-gnu*): Don't build crtbegin/end.
1926
67f68fd2
JW		 1927Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
1928
1929 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
1930 last change.
1931
88016fb7
DE		 1932Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
1933
1934 * loop.c (combine_movables): Earlier insns don't match later ones.
1935
bba17b29
L		 1936Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1937
1938 * config/linux.h (CC1_SPEC): Define it only if not defined.
1939
1940 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
1941 <linux.h>
1942
1943 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
1944 USE_GNULIBC_1 is not defined.
1945
33d2808b 1946 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
bba17b29
L		 1947
1948 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
1949 as 1 if USE_GNULIBC_1 is not defined.
1950
ed4044e0
JL		 1951Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
1952
f345de42
JL		 1953 * reorg.c (dbr_schedule): Allow current_function_return_rtx
1954 to be something other than a REG.
1955 * function.c (expand_function_end): Fix current_function_return_rtx
1956 if it was a pseudo.
1957
ed4044e0
JL		 1958 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
1959 * x-netbsd: Likewise
1960 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1961 (INSTALL_HEADERS): Delete.
1962 * x-dguxbcs: Likewise.
1963 * x-hp3bsd44: Likewise
1964 * x-pa: Likewise.
1965
47d36400
BS		 1966Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1967
1968 * i386.md (pop): pop increments the stack pointer.
1969 (prologue_set_stack_ptr): New pattern.
1970 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1971 instead of subsi3.
1972
fc79eafe
JW		 1973Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
1974
1975 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1976 address where an offsettable address is required.
1977
c5da853f
MH		 1978Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
1979
1980 * loop.c (check_final_value): Don't miss a biv increment in a
1981 parallel.
1982
d4ef15f2
JW		 1983Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
1984
1985 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1986 TYPE_DECL_IS_STUB instead of DECL_NAME.
1987
10549cbd
JW		 1988Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1989
1990 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1991
1992Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
1993
1994 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1995
484df988
JL		 1996Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
1997
1998 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1999 (find_post_sched_live): Likewise.
2000
2001 * haifa-sched.c (schedule_block): Remove old code to get arguments
2002 from hard regs into pseudos early.
2003
39dfb55a
JL		 2004Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
2005
2006 * version.c: Bump for new snapshot.
2007
2008 * local-alloc.c (update_equiv_regs): All the target to reject
2009 promotion of some REG_EQUAL to REG_EQUIV notes.
2010 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
2011
2012 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
2013 secondary reloads.
2014
2015 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
2016 store of the argument registers.
2017
2018Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
2019
2020 * fold-const.c (multiple_of_p): New function.
2021 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
2022
d78778eb
JL		 2023Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
2024
2025 * expr.h (insn_gen_function): Temporarily remove prototype.
2026
feb9ea1a
JW		 2027Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
2028
2029 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
2030 filenames. Use sed to extract base filename for install.
2031
b6ffe602
JC		 2032Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
2033
2034 * unroll.c (find_splittable_givs): Only share if two givs have the
2035 same add and multiply values.
2036
2ebfd230
JW		 2037Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
2038
2039 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
2040 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
2041
251ffdee
JL		 2042Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
2043
2044 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
2045 around branch tables.
2046 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
2047 and .end_brtab directives if TARGET_GAS.
2048
19372aa1
JW		 2049Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
2050
27314274
JW		 2051 * alias.c (true_dependence): Pass x_addr not x to varies.
2052
19372aa1
JW		 2053 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
2054 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
2055 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
2056 declarations.
2057 * config.in, configure: Regenerate.
2058
2a2c8203
JC		 2059Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
2060
2061 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
2062 LO_SUM.
2063 (record_set): Handle LO_SUM like PLUS.
2064 (init_alias_analysis): When following chains of base addresses,
2065 do not stop on reaching a hard register.
2066
d80357b7
JL		 2067Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
2068
2069 * version.c: Bump for new snapshot.
2070
b4f32d7b
JW		 2071Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
2072
2073 * alpha.h (ARCH_ASM_FILE_START): Define.
2074 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
2075 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
2076
ca363bb6
JL		 2077Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
2078
2079 * Makefile.in (install-common): Put gcov comment at start of line.
2080
7557aa98
JL		 2081Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
2082
2083 * alias.c (init_alias_analysis): When simplifying the reg_base_value
2084 array, simplify entries for hard registers too.
2085
c34e3ae4
DL		 2086Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
2087
2088 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
2089 list.
2090
e3eef942
JW		 2091Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
2092
2093 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
2094 block_stack before dereferencing it.
2095
2096Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
246853b9
MM		 2097
2098 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
2099
04f41951
JM		 2100Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
2101
2102 * cplus-dem.c: Add 'extern' to prepends_underscore.
2103
e933cbe0
JL		 2104Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
2105
62d65906
JL		 2106 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
2107 (get_issue_rate): Delete.
2108 * pa.h (ISSUE_RATE): Define.
2109
2da05a5b
JL		 2110 * configure.in: Turn on haifa by default for the PA.
2111 * configure: Rebuilt.
2112 * pa.c (override_options): Accept -mschedule=7200 option.
2113 (pa_adjust_cost): No longer need to scale costs for newer
2114 processors.
2115 * pa.h (enum processor_type): Add PROCESSOR_7200.
2116 * pa.md: Revamp scheduling parameters to work better with
2117 haifa. Add scheduling parameters for the 7200.
2118
4f64eaca
JL		 2119 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
2120 insns too.
2121 (schedule_block): When adjusting basic_block_{head,end}, account
2122 for movement of SCHED_GROUP_P insns too.
2123
2124 * haifa-sched.c (debug_dependencies): Fix thinko.
2125
e933cbe0
JL		 2126 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
2127 (site.exp, check, check-g++, check-gcc): New targets.
2128
4f64eaca 2129 * haifa-sched.c: Make lots of variables static.
61822835 2130
e9576d2c
L		 2131Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
2132
2133 * expr.h, real.h: Finish prototyping.
2134
61822835
JL		 2135Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
2136
2137 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
2138 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
2139 * reload1.c: Undo bugfix from Aug 11.
2140
f24b370a
MM		 2141Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
2142
2143 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
2144 quotes around the name.
2145 * configure: Regenerate.
2146
1c4c5851
JW		 2147Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
2148
2149 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
2150
71abb567
MH		 2151Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
2152
2153 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
2154 to sub-makes to avoid building more passes than the user might have
2155 requested on the command line.
2156
6042434a
DL		 2157Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
2158
2159 * configure.in: Expurgate `broken_install' (install is
2160 autoconfed).
2161
2162 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
2163 relevant).
2164
38ea060f
JL		 2165Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
2166
2167 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
2168 functions and declarations.
2169 (analyze_loop_iterations): Use condjump_p.
2170 (insert_bct): Likewise. Use exact_log2.
2171
f187056f
JL		 2172Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
2173
2174 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
2175 (schedule_region): Likewise.
2176 (schedule_insns): Likewise.
2177
2178 * PROJECTS: Update with Haifa stuff.
2179
9af06254
JL		 2180Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
2181
2182 * version.c: Change the version string to look like:
11c21791 2183 egcs-2.90.00 970814 (gcc2-970802 experimental).
9af06254 2184
0945e937
JL		 2185 * loop.c (is_conditional_branch): Make definition match declaration.
2186
9af06254
JL		 2187 * gcc.c: Take out experimental snapshot warning message.
2188
ebc25a17
MM		 2189Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
2190
2191 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
2192 print out the names of the notes. Print out the name of the insn
2193 that is not a note, and not an {,CALL_,JUMP_}INSN.
2194
610ce97e
JM		 2195Wed Aug 13 17:32:38 1997 Jason Merrill <jason@yorick.cygnus.com>
2196
2197 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
2198 again for the slot after we give it RTL.
2199
992d1248
DE		 2200Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
2201
2202 * configure.in (haifa configury): Fix typo.
2203 * configure: Regenerate.
2204
7bb6fbd1
JL		 2205Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
2206
2207 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
2208
2209 * gcc.info*: Rebuilt.
2210
2211 * COPYING.g77, README.g77: New files.
2212 * real.c (ereal_unto_float, ereal_unto_double): New functions.
2213 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
2214 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
2215
8c660648
JL		 2216Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
2217
2218 * Integrate Haifa instruction scheduler.
2219 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
2220 to sched with $(SCHED_CFLAGS.
2221 * configure.in: Handle --enable-haifa.
2222 * configure: Rebuilt.
2223 * flags.h: Add new flags for haifa instruction scheduler.
2224 * genattrtab.c (expand_units): For haifa, don't subtract one
2225 when computing blockage.
2226 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
2227 (flag_schedule_speculative): Ditto.
2228 (flag_schedule_speculative_load): Ditto.
2229 (flag_schedule_speculative_load_dangerous): Ditto.
2230 (flag_schedule_reverse_before_reload): Ditto.
2231 (flag_schedule_reverse_after_reload): Ditto.
2232 (flag_branch_on_count_reg): Ditto.
2233 (f_options): Add Haifa switches.
2234 (main): Turn off some Haifa options if appropriate macro is
2235 defined. Process Haifa switches.
2236 * unroll.c (iteration_info): No longer static, since Haifa
2237 scheduler uses it.
2238 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
2239 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
2240 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
2241 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
2242 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
2243 storage for the Haifa scheduler.
2244 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
2245 LABEL_NEXTREF.
2246 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
2247 are defined, call analyze_loop_iterations and insert_bct to use
2248 countdown loops.
2249 (record_giv): Refine test for jumps out of loops if HAIFA is
2250 defined.
2251 (analyze_loop_iterations): New function to identify if we can use
2252 a countdown loop.
2253 (insert_bct): Insert countdown loop.
2254 (instrument_loop_bct): Low level code to insert countdown loop.
2255 (loop_number): Calculate UID of loop.
2256 (indirect_jump_in_function_p): Return true if an indirect jump is
2257 in the function.
2258 (is_power_of_2): Return true if value is a power of 2.
2259 (is_conditional_branch): Return true if insn is a conditional
2260 jump.
2261 (fix_bct_param): Process -fbct-{min,max}-N switches.
2262 (check_bct_param): Return true if loop should be instrumented.
2263 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
2264 (loop_optimize): Initialize.
2265 (get_condition_for_loop): Ditto.
2266 * loop.c (strength_reduce): Inside of code that uses #ifdef
2267 HAVE_decrement_and_branch_on_count code, test it to make sure the
2268 condition is true.
2269 (instrument_loop_bct): Ditto.
2270 * haifa-sched.c: New file.
2271
2272
2273 * Integrate regmove pass.
2274 * Makefile.in (OBJS): Add regmove.o
2275 (regmove.o): Add dependencies.
2276 * flow.c (find_use_as_address): No longer static.
2277 * rtl.h (find_use_as_address): Declare.
2278 * toplev.c (regmove_dump, flag_regmove): Define.
2279 (f_options): Add -fregmove.
2280 (regmove_dump_file, regmove_time): Define.
2281 (fatal_insn): Close the regmove dump file.
2282 (compile_file): Initialize regmove_time; open/close the regmove dump
2283 file as needed. Print regmove time as needed.
2284 (rest_of_compilation): Run regmove pass if requested, dump
2285 RTL after regmove if requested.
2286 (main): If -O2 or more, turn on regmove. Handle dump switches.
2287 * regmove.c: New file.
2288
aa32d841
JL		 2289Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
2290
2291 * Integrate tlink patch from jason@cygnus.com
2292 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
2293 (process_command): Increment n_switches for them. Don't discard
2294 their args. Validate them.
2295 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
2296 From Rohan Lenard.
2297 (process_command): Set include_prefixes from COMPILER_PATH.
2298 (main): Set COLLECT_GCC_OPTIONS sooner.
2299 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
2300 * tlink.c, hash.c, hash.h: New files.
2301 * Makefile.in (USE_COLLECT2): Always use collect2.
2302 (collect2): Depend on and link in hash.o and tlink.o.
2303 (tlink.o, hash.o): Add dependencies.
2304
5fa39bfe
JL		 2305Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
2306
9ae8ffe7
JL		 2307 * Integrate alias analysis changes from jfc@mit.edu
2308 * Makefile.in (OBJS): Add alias.o
2309 (alias.o): Add dependencies.
2310 * alias.c: New file.
2311 * sched.c: Remove alias analysis code. It lives in alias.c now.
9ae8ffe7 2312 (sched_analyze_2): Add new arguments to true_dependence.
9ae8ffe7
JL		 2313 (schedule_insns): Always call init_alias_analysis.
2314 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
2315 mark return value from such functions as a pointer and keep track of
2316 them for alias analysis. If a return value from a function is a
2317 pointer, mark it as such.
2318 * combine.c (distribute_notes): Handle REG_NOALIAS.
2319 * cse.c (struct write_data): Delete. No longer needed.
2320 (invalidate): Don't call set_nonvarying_address_components anymore.
2321 Use true_dependence to decide if an entry should be removed from
2322 the hash table.
2323 (invalidate_memory): Remove WRITES argument, simplify appropriately.
2324 Fix all callers.
2325 (note_mem_written): Similarly for WRITE_PTR argument.
2326 (invalidate_from_clobbers): Similarly for W argument.
2327 (invalidate_for_call): Remove memory elements from the hash table.
2328 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
2329 (cse_rtx_varies_p): New function. Derived from old
2330 cse_rtx_addr_varies_p.
2331 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
2332 Don't call note_mem_written anymore. Stack pushes invalidate the stack
2333 pointer if PUSH_ROUNDING is defined. No longer need to call
2334 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
2335 (skipped_writes_memory): Remove variable.
2336 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
2337 (invalidate_skipped_block): Simplify for new alias analysis code.
2338 (cse_set_around_loop): Likewise.
2339 (cse_main): Call init_alias_analysis.
2340 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
2341 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
2342 (f_options): Add new alias checking arguments.
2343 (main): Set flag_alias_check when optimizing.
2344 * local_alloc (validate_equiv_mem_from_store): Add new arguments
2345 to true_dependence.
2346 (memref_referenced_p): Likewise.
2347 * loop.c (NUM_STORES): Increase to 30.
2348 (prescan_loop): Only non-constant calls set unknown_address_altered.
2349 (invariant_p): Add new arguments to true_dependence.
2350 (record_giv): Initialize unrolled and shared fields.
2351 (emit_iv_add_mult): Call record_base_value as needed.
2352 * loop.h (struct induction): Add unrolled and shared fields.
2353 * unroll.c (unroll_loop): Call record_base_value as needed.
2354 (copy_loop_body): Likewise.
2355 (final_biv_value): Likewise.
2356 (final_giv_value): Likewise.
2357 (find_splittable_regs): Likewise. Only create one new pseudo
2358 if we have multiple address GIVs that were combined with the same
2359 dst_reg GIV. Note when a new register is created due to unrolling.
2360 * rtl.c (reg_note_name): Add REG_NOALIAS.
2361 * rtl.h (enum reg_note): Similarly.
2362 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
2363 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
2364 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
2365 (true_dependence, read_dependence, anti_dependence): Likewise.
2366 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
2367 (mark_user_reg, mark_reg_pointer): Likewise.
2368
2369
2370 * Integrate reload bugfix from Wilon which enables the PA port
5fa39bfe
JL		 2371 to bootstrap again.
2372 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
2373 OPERAND_ADDRESS when computing how many registers an insn needs.
2374 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
2375 conflict.
2376 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
2377 OPADDR_ADDR reload.
2378 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
2379 in reload_reg_use_in_op_addr do not reach the end.
2380 do not reach the end.
2381 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
2382 RELOAD_FOR_OPERAND_ADDRESS.
2383
2384Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
2385
2dcfcb56 2386 * egcs project officially starts.
861bb6c1 2387
GNU Compiler Collection
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