Wed Aug 27 16:08:43 1997 Jim Wilson * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if USE_GNULIBC_1 is not defined. Wed Aug 27 15:49:12 1997 Richard Henderson * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1. * config.guess: Recognize alpha-linux-gnulibc1. * configure.in (alpha-*-linux-gnulibc1): New target. (alpha-*-linux-gnu*): Don't build crtbegin/end. Wed Aug 27 11:52:58 1997 Jim Wilson * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in last change. Wed Aug 27 01:56:18 1997 Doug Evans * loop.c (combine_movables): Earlier insns don't match later ones. * c-decl.c (grokdeclarator): If array index or size calculations overflow, issue an error. * fold-const.c (int_const_binop): New static function. (const_binop, size_binop): Call it. Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu) * config/linux.h (CC1_SPEC): Define it only if not defined. * config/m68k/linux.h (CC1_SPEC): Undefine it before include * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if USE_GNULIBC_1 is not defined. * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1. * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if USE_GNULIBC_1 is not defined. Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com) * reorg.c (dbr_schedule): Allow current_function_return_rtx to be something other than a REG. * function.c (expand_function_end): Fix current_function_return_rtx if it was a pseudo. * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS. * x-netbsd: Likewise * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS (INSTALL_HEADERS): Delete. * x-dguxbcs: Likewise. * x-hp3bsd44: Likewise * x-pa: Likewise. Wed Aug 27 00:30:00 1997 Bernd Schmidt * i386.md (pop): pop increments the stack pointer. (prologue_set_stack_ptr): New pattern. * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr instead of subsi3. Tue Aug 26 18:50:32 1997 Jim Wilson * reload.c (find_reloads, case '0'): Reject matching a non-offsettable address where an offsettable address is required. Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz> * loop.c (check_final_value): Don't miss a biv increment in a parallel. Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com) * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check TYPE_DECL_IS_STUB instead of DECL_NAME. Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu) * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj. Mon Aug 25 23:27:10 1997 Jim Meyering * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES). Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com) * haifa-sched.c (find_pre_sched_live): Remove #if 0 code. (find_post_sched_live): Likewise. * haifa-sched.c (schedule_block): Remove old code to get arguments from hard regs into pseudos early. Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com) * version.c: Bump for new snapshot. * local-alloc.c (update_equiv_regs): All the target to reject promotion of some REG_EQUAL to REG_EQUIV notes. * pa.h (DONT_RECORD_EQUIVALENCE): Define. * pa.c (secondary_reload_class): (mem (mem ... )) does not need secondary reloads. * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the store of the argument registers. Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu) * fold-const.c (multiple_of_p): New function. (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR. Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com) * expr.h (insn_gen_function): Temporarily remove prototype. Sun Aug 24 17:22:21 1997 Jim Wilson * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to filenames. Use sed to extract base filename for install. Sat Aug 23 18:19:40 1997 John F. Carr * unroll.c (find_splittable_givs): Only share if two givs have the same add and multiply values. Sat Aug 23 14:36:27 1997 Jim Wilson * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef. * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it. Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com) * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns around branch tables. * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab and .end_brtab directives if TARGET_GAS. Fri Aug 22 14:05:55 1997 Jim Wilson * alias.c (true_dependence): Pass x_addr not x to varies. * acconfig.h (NEED_DECLARATION_CALLOC): Add. * configure.in: Add GCC_NEED_DECLARATION call for calloc. * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete declarations. * config.in, configure: Regenerate. Thu Aug 21 23:52:16 1997 John F. Carr * alias.c (find_base_value): Improve handling of PLUS, MINUS, and LO_SUM. (record_set): Handle LO_SUM like PLUS. (init_alias_analysis): When following chains of base addresses, do not stop on reaching a hard register. Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com) * version.c: Bump for new snapshot. Thu Aug 21 17:28:00 1997 Jim Wilson * alpha.h (ARCH_ASM_FILE_START): Define. (ASM_FILE_START): Use ARCH_ASM_FILE_START. * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string. Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com) * Makefile.in (install-common): Put gcov comment at start of line. Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com) * alias.c (init_alias_analysis): When simplifying the reg_base_value array, simplify entries for hard registers too. Wed Aug 20 12:35:47 1997 Dave Love * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from list. Wed Aug 20 11:58:33 1997 Jim Wilson * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test block_stack before dereferencing it. Wed Aug 20 11:57:11 1997 Michael Meissner * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate. Tue Aug 19 17:10:56 1997 Jason Merrill * cplus-dem.c: Add 'extern' to prepends_underscore. Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com) * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate. (get_issue_rate): Delete. * pa.h (ISSUE_RATE): Define. * configure.in: Turn on haifa by default for the PA. * configure: Rebuilt. * pa.c (override_options): Accept -mschedule=7200 option. (pa_adjust_cost): No longer need to scale costs for newer processors. * pa.h (enum processor_type): Add PROCESSOR_7200. * pa.md: Revamp scheduling parameters to work better with haifa. Add scheduling parameters for the 7200. * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P insns too. (schedule_block): When adjusting basic_block_{head,end}, account for movement of SCHED_GROUP_P insns too. * haifa-sched.c (debug_dependencies): Fix thinko. * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define. (site.exp, check, check-g++, check-gcc): New targets. * haifa-sched.c: Make lots of variables static. Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu) * expr.h, real.h: Finish prototyping. Mon Aug 18 21:49:02 1997 Jim Wilson * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR reloads to RELOAD_FOR_OPERAND_ADDRESS reloads. * reload1.c: Undo bugfix from Aug 11. Mon Aug 18 17:39:02 1997 Mike Meissner * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single quotes around the name. * configure: Regenerate. Mon Aug 18 13:46:47 1997 Jim Wilson * Makefile.in (stmp-multilib-sub): Fix typo in last change. Thu Aug 7 10:33:13 1997 Manfred Hollstein * Makefile.in (sub-makes): Pass the current value of LANGUAGES down to sub-makes to avoid building more passes than the user might have requested on the command line. Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk) * configure.in: Expurgate `broken_install' (install is autoconfed). * configure.lang: Substitute autoconfed ${INSTALL} (not currently relevant). Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com) * loop.c (is_power_of_2, is_conditional_branch): Delete unused functions and declarations. (analyze_loop_iterations): Use condjump_p. (insert_bct): Likewise. Use exact_log2. Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com) * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed. (schedule_region): Likewise. (schedule_insns): Likewise. * PROJECTS: Update with Haifa stuff. Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com) * version.c: Change the version string to look like: egcs-2.90.00 970814 (gcc2-970802 experimental). * loop.c (is_conditional_branch): Make definition match declaration. * gcc.c: Take out experimental snapshot warning message. Fri Aug 15 13:43:39 1997 Michael Meissner * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to print out the names of the notes. Print out the name of the insn that is not a note, and not an {,CALL_,JUMP_}INSN. Wed Aug 13 01:03:37 1997 Doug Evans * configure.in (haifa configury): Fix typo. * configure: Regenerate. Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com) * version.c: Bump version to "gcc-3.0.0 970802 experimental". * gcc.info*: Rebuilt. * COPYING.g77, README.g77: New files. * real.c (ereal_unto_float, ereal_unto_double): New functions. * real.h (ereal_unto_float, ereal_unto_double): Declare them. (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define. Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com) * Integrate Haifa instruction scheduler. * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references to sched with $(SCHED_CFLAGS. * configure.in: Handle --enable-haifa. * configure: Rebuilt. * flags.h: Add new flags for haifa instruction scheduler. * genattrtab.c (expand_units): For haifa, don't subtract one when computing blockage. * toplev.h (flag_schedule_interblock): Haifa scheduler flag. (flag_schedule_speculative): Ditto. (flag_schedule_speculative_load): Ditto. (flag_schedule_speculative_load_dangerous): Ditto. (flag_schedule_reverse_before_reload): Ditto. (flag_schedule_reverse_after_reload): Ditto. (flag_branch_on_count_reg): Ditto. (f_options): Add Haifa switches. (main): Turn off some Haifa options if appropriate macro is defined. Process Haifa switches. * unroll.c (iteration_info): No longer static, since Haifa scheduler uses it. (unroll_loop): Inform HAIFA scheduler about loop unrolling factor. * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value. * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls. * loop.h (loop_initial_value,loop_unroll_iter): New globals. * loop.c (loop_optimize): If HAIFA is defined, allocate additional storage for the Haifa scheduler. (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and LABEL_NEXTREF. (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count are defined, call analyze_loop_iterations and insert_bct to use countdown loops. (record_giv): Refine test for jumps out of loops if HAIFA is defined. (analyze_loop_iterations): New function to identify if we can use a countdown loop. (insert_bct): Insert countdown loop. (instrument_loop_bct): Low level code to insert countdown loop. (loop_number): Calculate UID of loop. (indirect_jump_in_function_p): Return true if an indirect jump is in the function. (is_power_of_2): Return true if value is a power of 2. (is_conditional_branch): Return true if insn is a conditional jump. (fix_bct_param): Process -fbct-{min,max}-N switches. (check_bct_param): Return true if loop should be instrumented. * loop.c (loop_initial_value,loop_unroll_iter): New globals. (loop_optimize): Initialize. (get_condition_for_loop): Ditto. * loop.c (strength_reduce): Inside of code that uses #ifdef HAVE_decrement_and_branch_on_count code, test it to make sure the condition is true. (instrument_loop_bct): Ditto. * haifa-sched.c: New file. * Integrate regmove pass. * Makefile.in (OBJS): Add regmove.o (regmove.o): Add dependencies. * flow.c (find_use_as_address): No longer static. * rtl.h (find_use_as_address): Declare. * toplev.c (regmove_dump, flag_regmove): Define. (f_options): Add -fregmove. (regmove_dump_file, regmove_time): Define. (fatal_insn): Close the regmove dump file. (compile_file): Initialize regmove_time; open/close the regmove dump file as needed. Print regmove time as needed. (rest_of_compilation): Run regmove pass if requested, dump RTL after regmove if requested. (main): If -O2 or more, turn on regmove. Handle dump switches. * regmove.c: New file. Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com) * Integrate tlink patch from jason@cygnus.com * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'. (process_command): Increment n_switches for them. Don't discard their args. Validate them. (main): Escape " marks when creating COLLECT_GCC_OPTIONS. From Rohan Lenard. (process_command): Set include_prefixes from COMPILER_PATH. (main): Set COLLECT_GCC_OPTIONS sooner. * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld. * tlink.c, hash.c, hash.h: New files. * Makefile.in (USE_COLLECT2): Always use collect2. (collect2): Depend on and link in hash.o and tlink.o. (tlink.o, hash.o): Add dependencies. Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com) * Integrate alias analysis changes from jfc@mit.edu * Makefile.in (OBJS): Add alias.o (alias.o): Add dependencies. * alias.c: New file. * sched.c: Remove alias analysis code. It lives in alias.c now. (sched_analyze_2): Add new arguments to true_dependence. (schedule_insns): Always call init_alias_analysis. * calls.c (expand_call): Note calls to malloc, calloc, and realloc; mark return value from such functions as a pointer and keep track of them for alias analysis. If a return value from a function is a pointer, mark it as such. * combine.c (distribute_notes): Handle REG_NOALIAS. * cse.c (struct write_data): Delete. No longer needed. (invalidate): Don't call set_nonvarying_address_components anymore. Use true_dependence to decide if an entry should be removed from the hash table. (invalidate_memory): Remove WRITES argument, simplify appropriately. Fix all callers. (note_mem_written): Similarly for WRITE_PTR argument. (invalidate_from_clobbers): Similarly for W argument. (invalidate_for_call): Remove memory elements from the hash table. (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted. (cse_rtx_varies_p): New function. Derived from old cse_rtx_addr_varies_p. (cse_insn): Remove WRITES_MEMORY and INIT variables and all references. Don't call note_mem_written anymore. Stack pushes invalidate the stack pointer if PUSH_ROUNDING is defined. No longer need to call cse_rtx_addr_varies_p to decide if a MEM should be invalidated. (skipped_writes_memory): Remove variable. (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory. (invalidate_skipped_block): Simplify for new alias analysis code. (cse_set_around_loop): Likewise. (cse_main): Call init_alias_analysis. * flags.h (flag_alias_check, flag_argument_noalias): Declare. * toplev.c (flag_alias_check, flag_argument_noalias): Define. (f_options): Add new alias checking arguments. (main): Set flag_alias_check when optimizing. * local_alloc (validate_equiv_mem_from_store): Add new arguments to true_dependence. (memref_referenced_p): Likewise. * loop.c (NUM_STORES): Increase to 30. (prescan_loop): Only non-constant calls set unknown_address_altered. (invariant_p): Add new arguments to true_dependence. (record_giv): Initialize unrolled and shared fields. (emit_iv_add_mult): Call record_base_value as needed. * loop.h (struct induction): Add unrolled and shared fields. * unroll.c (unroll_loop): Call record_base_value as needed. (copy_loop_body): Likewise. (final_biv_value): Likewise. (final_giv_value): Likewise. (find_splittable_regs): Likewise. Only create one new pseudo if we have multiple address GIVs that were combined with the same dst_reg GIV. Note when a new register is created due to unrolling. * rtl.c (reg_note_name): Add REG_NOALIAS. * rtl.h (enum reg_note): Similarly. (rtx_varies_p, may_trap_p, side_effects_p): Declare. (volatile_refs_p, volatile_insn_p, remove_note): Likewise. (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise. (true_dependence, read_dependence, anti_dependence): Likewise. (output_dependence, init_alias_analysis, end_alias_analysis): Likewise. (mark_user_reg, mark_reg_pointer): Likewise. * Integrate reload bugfix from Wilon which enables the PA port to bootstrap again. * reload1.c (reload): Sum needs for both OPADDR_ADDR and and OPERAND_ADDRESS when computing how many registers an insn needs. (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do conflict. (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like OPADDR_ADDR reload. (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers in reload_reg_use_in_op_addr do not reach the end. do not reach the end. (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with RELOAD_FOR_OPERAND_ADDRESS. Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com) * egcs project officially starts.