* emit-rtl.c (free_emit_status): Take decl as a parameter.
(init_emit_once): Add more GC roots.
* except.c (mark_func_eh_entry): New function.
(mark_eh_node): Mark false_label and rethrow_label.
(init_eh): Add more GC roots.
* function.c (free_after_compilation): Take decl as a paramter.
Call free_stmt_status.
(mark_function_state): Don't assume x_parm_reg_stack_loc is
non-NULL.
* function.h (free_after_compilation): Change prototype.
(free_varasm_status): Likewise.
(free_emit_status): Likewise.
(free_stmt_status): New function.
* ggc-simple.c (rtx, vecs, trees, strings, bytes_alloced_since_gc):
Remove, replacing with ...
(ggc_status): New structure.
(ggc_chain): New variable.
(init_gcc): Define.
(ggc_push_context): New function.
(ggc_pop_context): Likewise.
(ggc_alloc_rtx): Adjust for use of ggc_chain.
(ggc_alloc_rtvec): Likewise.
(ggc_alloc_tree): Likewise.
(ggc_alloc_string): Likewise.
(ggc_mark_rtx): Mark NOTE_SOURCE_FILE and NOTE_RANGE_INFO.
(ggc_mark_tree): Give language-dependent code a chance to mark
`x' nodes.
(ggc_mark_tree_varray): Handle empty arrays.
(ggc_collect): Adjust for use of ggc_chain. Clear
bytes_alloced_since_last_gc.
* ggc.h (ggc_pop_context): New function.
(ggc_push_context): Likewise.
* print-tree.c (print_node): Don't print obstacks when GC'ing.
* stmt.c (free_stmt_status): New function.
(init_stmt_for_function): Clear last_expr_value.
* toplev.c (rest_of_compilation): Always call free_after_compilation.
Conditionalize call to ggc_collect.
(main): Call init_ggc.
* tree.c (push_obstacks): Do the push, even when GC'ing.
(push_obstacks_nochange): Likewise.
(pop_obstacks): Liekwise.
* varasm.c (free_varasm_status): Take decl as a parameter.
From-SVN: r29170
1999-08-25 22:10 -0700 Zack Weinberg <zack@bitmover.com>
* system.h: Don't redefine abort or trim_filename.
* rtl.h: Define abort to fancy_abort (__FILE__, __LINE__, 0)
or fancy_abort (__FILE__, __LINE__, __FUNCTION__) depending on
whether or not __FUNCTION__ is available.
* tree.h: Duplicate rtl.h's definition of abort, for files
that don't include rtl.h. Delete all code to perform type
checking with a compiler other than GCC.
* varray.h: Delete all code to perform type checking with a
compiler other than GCC. Make VARRAY_CHECK() always evaluate
its arguments exactly once, using a statement expression.
Adjust the VARRAY_<type> accessor macros to match.
* toplev.h (fatal_insn, fatal_insn_not_found): Kill.
(_fatal_insn, _fatal_insn_not_found): New fns, take info on
caller's location. Define fatal_insn and fatal_insn_not_found
as macros that use _fatal_insn and _fatal_insn_not_found.
(fancy_abort, trim_filename): Kill prototypes.
* rtl.c (trim_filename): Move here from toplev.c.
(fancy_abort): New function.
(DIR_SEPARATOR): Provide default definition.
* tree.c (tree_check_failed, tree_class_check_failed): Go
through fancy_abort.
(tree_check, tree_class_check, cst_or_constructor_check,
expr_check): Delete.
* varray.c (varray_check_failed): New function.
* toplev.c (fatal_insn, fatal_insn_not_found): Replace with
_fatal_insn and _fatal_insn_not_found. Go through
fancy_abort.
(trim_filename, fancy_abort): Delete.
* builtins.c (expand_builtin_args_info): Report ICE with abort.
* except.c (start_catch_handler): Report ICE with error/abort
combo.
* final.c (output_operand_lossage): Likewise.
* flow.c (verify_flow_info): Likewise.
* gcc.c: Prototype fatal.
* gengenrtl.c: Undef abort after including rtl.h not system.h.
* genattr.c, genattrtab.c, genemit.c, genextract.c,
genflags.c, genopinit.c, genoutput.c, genpeep.c, genrecog.c:
Don't define fancy_abort.
From-SVN: r28889
Tue Aug 10 10:47:42 EDT 1999 Andrew MacLeod <amacleod@cygnus.com>
* except.h (eh_nesting_info): Add new structure defintion.
(init_eh_nesting_info, free_eh_nesting_info): Add function prototypes.
(reachable_handlers, update_rethrow_references): Add function
prototypes.
* rtl.h (struct rtvec_def): Update comments. REG_EH_RETHROW takes
a rethrow symbol instead of an integer exception region number.
* flow.c (Make_edges): Use new exception nesting routines to determine
which handlers are reachable from a CALL or asynchronous insn.
Dont add an edge for calls with a REG_EH_REGION of -1 to non-local
goto receivers.
(delete_eh_regions): Update rethrow labels, and don't delete
regions which are the target of a rethrow.
* except.c (struct func_eh_entry): Add rethrow_ref field, now we can
avoid overloading the SYMBOL_REF_USED flag.
(rethrow_symbol_map): Use new rethrow_ref field.
(rethrow_used): Use new rethrow_ref field.
(expand_rethrow): REG_EH_RETHROW now has a SYMBOL_REF instead
of an integer. Fix formatting.
(output_exception_table_entry): Use new rethrow_ref field.
(can_throw): Check for EH_REGION_NOTE before deciding
whether a CALL can throw or not.
(scan_region): Call rethrow_used() instead of accessing data structure.
(update_rethrow_references): New function to make sure only regions
which are still targets of a rethrow are flagged as such.
(process_nestinfo): New static function to initialize a handler
list for a specific region.
(init_eh_nesting_info): New function to allocate and initialize
the list of all EH handlers reachable from all regions.
(reachable_handlers): New function to retrieve the list of handlers
reachable from a specific region and insn.
(free_eh_nesting_info): New function to dispose of a list of
reachable handlers.
From-SVN: r28647
* print-tree.c (print_node): Print base for OFFSET_TYPEs.
* except.c (expand_eh_region_start_for_decl): Always start a new block.
* stmt.c (is_eh_region): Make sure current_function is present, too.
From-SVN: r28621
* alias.c (record_alias_subset): Remove ignored `&'.
(init_alias_once): Likewise.
* c-lex.c (UNGETC): Cast first argument of comma expression to void.
* config/mips/mips.c (mips_asm_file_end): Cast the result of
fwrite to `int' when comparing against one.
* config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
(INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
* cse.c (rehash_using_reg): Change type of variable `i' to
unsigned int.
* dwarf2out.c (initial_return_save): Cast -1 to unsigned before
assigning it to one.
* except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
* final.c (final_scan_insn): Likewise for variable `i'.
(output_asm_insn): Cast a char to unsigned char when used as an
array index.
* gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
assigning it to one.
* loop.c (strength_reduce): Remove unused variables `count' and `temp'.
* recog.c (preprocess_constraints): Cast a char to unsigned char
when used as an array index.
* regmove.c (find_matches): Likewise.
* reload1.c (calculate_needs): Add default case in switch.
(eliminate_regs_in_insn): Initialize variable `offset'.
(set_offsets_for_label): Change type of variable `i' to unsigned.
(reload_as_needed): Wrap variable `i' in macro check on
AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.
* scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
with ATTRIBUTE_UNUSED. Cast variable `start_written' to size_t
when comparing against one.
* stor-layout.c (layout_decl): Cast maximum_field_alignment to
unsigned when comparing against one. Likewise for
GET_MODE_ALIGNMENT().
(layout_record): Cast record_align to int when comparing against a
signed value.
(layout_type): Cast TYPE_ALIGN() to int when comparing against a
signed value.
* tree.c (get_identifier): Cast variable `len' to unsigned when
comparing against one.
(maybe_get_identifier): Likewise
From-SVN: r24403
* except.h (struct handler_info): Add handler_number field
* except.c (gen_exception_label): EH labels no longer need to be
on the permanent obstack.
(get_new_handler): Set the label number field.
(output_exception_table_entry): Regenerate handler label reference
from the label number field.
(init_eh): Remove a blank line
* integrate.c (get_label_from_map): Labels no longer need to be
on the permanent obstack.
From-SVN: r24203
Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
See ChangeLog.. These are the files that were changed:
* eh-common.h (struct eh_context): Add table_index for rethrows.
* rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
* rtl.c (reg_note_name): Add strings for new reg_note enums.
* expr.h (rethrow_libfunc): New library decl.
* optabs.c (rethrow_libfunc): Initialize.
* except.h (struct eh_entry): Add new field 'rethrow_label'.
* except.c (create_rethrow_ref): New function to create a single
* flow.c (make_edges): Add different edges for rethrow calls,
* integrate.c (save_for_inline_eh_labelmap): New callback routine to
* libgcc2.c (find_exception_handler): Generalize to enable it to
* cp/except.c
* cp/exception.cc
From-SVN: r24194
Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
* except.c (expand_fixup_region_end): Make sure outer context labels
are not issued in an inner context during cleanups.
From-SVN: r23538
Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
* except.c (emit_eh_context): Make the EH context register stay alive
at -O0 so stupid.c doesn't get confused.
From-SVN: r23423
Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
* expr.h (eh_rtime_match_libfunc): New extern declaration.
* optabs.c (init_optabs): Set eh_rtime_match_libfunc.
* except.c (start_catch_handler): Use eh_rtime_match_libfunc.
* libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
NULL. Only include <stdio.h> if inhibit_libc is not defined.
From-SVN: r22532
Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
* except.h (struct eh_entry): Add false_label field.
(end_catch_handler): Add prototype.
* except.c (push_eh_entry): Set false_label field to NULL_RTX.
(start_catch_handler): When using old style exceptions, issue
runtime typematch code before continuing with the handler.
(end_catch_handler): New function, generates label after handler
if needed by older style exceptions.
(expand_start_all_catch): No need to check for new style exceptions.
(output_exception_table_entry): Only output the first handler label
for old style exceptions.
* libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
mechanism into one function, if a runtime matcher is provided.
1998-09-15 Andrew MacLeod <amacleod@cygnus.com>
* cp/except.c (expand_start_catch_block): No need to check for new
exception model.
(process_start_catch_block_old): Deleted.
(process_start_catch_block): Add call to start_decl_1().
(expand_end_catch_block): Add call to end_catch_handler().
* cp/exception.cc (__cplus_type_matcher): Only check the exception
language if there is an exception table.
From-SVN: r22425
* except.h (current_function_eh_stub_label): Declare.
(current_function_eh_old_stub_label): Declare.
* function.h (struct function): New members eh_stub_label and
eh_old_stub_label.
* except.c (current_function_eh_stub_label): New variable.
(current_function_eh_old_stub_label): New variable.
(init_eh_for_function): Clear them.
(save_eh_status): Save them.
(restore_eh_status): Restore them.
(expand_builtin_eh_stub): Set current_function_eh_stub_label.
(expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
* flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
make an edge from the block that contains it to the block starting
with the label if this label is one of the eh stub labels.
If eh stub labels exist, show they are reachable from the last block
in the function.
From-SVN: r22369
* c-decl.c (init_decl_processing): Remove unneeded &.
* alpha.h (alpha_initialize_trampoline): Provide prototype.
* except.c (set_exception_lang_code, set_exception_version_code):
Change parameter from `short' to `int' to avoid using a gcc
extension.
* except.h (set_exception_lang_code, set_exception_version_code):
Likewise for prototypes.
* flow.c (count_reg_references): Remove unused variables `regno'
and `i'.
* gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
* prefix.c (translate_name): Cast the result of `alloca'.
* varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r21781
* except.c (set_exception_lang_code, set_exception_version_code):
Use prototype-style definition if __STDC__, to match declaration
in except.h.
* genemit.c: Change FAIL and DONE macros not to use loops.
From-SVN: r21675
* Makefile.in (fix-header): Don't needlessly depend on cpperror.o.
* alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Cast expansion to
void since it is evaluated in a comma list.
* mips.h (ASM_GENERATE_INTERNAL_LABEL): Always sprintf `NUM'
argument as a long and cast `NUM' to long to ensure it is of the
proper width. Wrap macro arguments in parens when they appear in
the expansion.
* sol2.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
* sparc.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
(ASM_DECLARE_RESULT): Fix fprintf format specifier to match
function argument return type.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_FP_P,
REGNO_OK_FOR_CCFP_P): Use `(unsigned)' not `U'.
* cpplib.c (cpp_message_from_errno): Remove unneeded argument to
cpp_message.
* dbxout.c: Fix the comments after an #endif to reflect the actual
condition tested in the preceding #if.
* except.c (find_all_handler_type_matches): Switch to old-style
function definition.
* expr.c (expand_builtin): Remove unused variable `type' twice.
* gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Cast -1 before comparing it
to an unsigned long.
* haifa-sched.c (print_insn_chain): Remove unused function.
* objc/objc-act.c (build_msg_pool_reference): Hide prototype and
definition.
* toplev.c: When testing whether to include dbxout.h, also include
it when XCOFF_DEBUGGING_INFO is defined.
* unroll.c (unroll_loop): Add parentheses around assignment used
as truth value.
From-SVN: r20801
Thu Jun 25 16:59:18 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
* except.h (CATCH_ALL_TYPE): Definition moved to eh-common.h.
(find_all_handler_type_matches): Add function prototype.
* eh-common.h (CATCH_ALL_TYPE): Definition added.
* except.c (find_all_handler_type_matches): Add function to find all
runtime type info in the exception table.
(output_exception_table_entry): Special case for CATCH_ALL_TYPE.
1998-06-25 Andrew MacLeod <amacleod@cygnus.com>
* cp-tree.h (mark_all_runtime_matches): Add function prototype.
* except.c (mark_all_runtime_matches): Set TREE_SYMBOL_REFERENCED
flag for all function decls which are in the exception table.
* exception.cc (__cplus_type_matcher): Check for CATCH_ALL_TYPE match.
* decl2.c (finish_file): Call mark_all_runtime_matches to make sure
code is emitted for any referenced rtti function.
From-SVN: r20718
Have -fnew-exceptions actually use the runtime field, and not generate
runtime checking code inside each handler.
THis works at low opt, but not with optimization at the moment.
Tue Jun 23 10:06:07 EDT 1998 Andrew MacLeod (amacleod@cygnus.com)
* eh-common.h (struct __eh_info): Remove coerced value field.
* libgcc2.c (find_exception_handler): Don't set coerced_value field.
* except.c (get_dynamic_handler_chain, get_dynamic_cleanup_chain): Use
POINTER_SIZE instead of Pmode.
(expand_start_all_catch): Call start_catch_handler() if we are not
using new style exceptions.
1998-06-22 Andrew MacLeod (amacleod@cygnus.com)
* parse.y (function_try_block): Don't call start_catch_handler.
* except.c (call_eh_info): Remove coerced field from declaration.
(build_eh_type_type_ref): New function to create an address of a
rtti function for the new style exception tables.
(expand_start_catch_block): Split function, this contains the
common part.
(process_start_catch_block_old): New function to perform the rest
of expand_start_catch_block under old style exceptions.
(process_start_catch_block_old): New function to perform the rest
of expand_start_catch_block under new style exceptions.
(expand_end_catch_block): Only pop the false label off the stack under
the old style of exceptions.
* semantics.c (finish_try_block): Don't call start_catch_handler.
* exception.cc (struct cp_eh_info): Add original_value field.
(__cplus_type_matcher): Perform type matching on the original exception
value, and if we have a match, set the current value.
(__cp_push_exception): Set the original expcetion value.
From-SVN: r20671
* Makefile.in (c-lang.o): Depend on output.h.
* c-lang.c: Include output.h.
* sparc.c (sparc_builtin_saveregs): Remove unused variable `fntype'.
* except.c (expand_builtin_eh_stub): Likewise for variable `jump_to'.
* genrecog.c (write_subroutine): When writing insn-recog.c, mark
variables `insn', `pnum_clobbers', `x[0 .. max_depth]' and `tem'
with ATTRIBUTE_UNUSED.
* regmove.c (copy_src_to_dest): Make function static to match its
prototype.
* reload1.c Include hard-reg-set.h before rtl.h to get macro
HARD_CONST. Include machmode.h before hard-reg-set.h.
* rtl.h: Prototype `retry_global_alloc' and wrap with macro
HARD_CONST to protect usage of typedef HARD_REG_SET.
* tree.c: Prototype `_obstack_allocated_p'.
* varasm.c: Wrap prototype of `asm_output_aligned_bss' in macro
BSS_SECTION_ASM_OP.
From-SVN: r20556
Wed Jun 17 16:25:38 EDT 1998 Andrew MacLeod (amacleod@cygnus.com)
* except.c (add_new_handler): fix bug in finding last region handler.
* libgcc2.c (find_exception_handler): Pass exception table pointer
to runtime type matcher, not the match info field.
From-SVN: r20541
* eh-common.h (struct eh_context): Add comment for hidden use of
field dynamic_handler_chain.
* except.c (get_dynamic_handler_chain): Comment on, and use the
correct offset of the dynamic_handler_chain field.
From-SVN: r20540
Thu Jun 8 14:16:15 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
* eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with
flag_new_exceptions runtime flag.
(struct old_exception_table): New struct which represents what
the exception table looks like without the new model.
(NEW_EH_RUNTIME): New value used as a tag in the exception table to
flag that this is a new style table.
* except.h: Remove compile time flag NEW_EH_MODEL.
(expand_builtin_eh_stub_old): New prototype.
* tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD.
* expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD.
* c-decl.c (init_decl_processing): Add new builtin function
__builtin_eh_stub_old.
* final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL.
* flags.h (flag_new_exceptions): New runtime flag.
* toplev.c (flag_new_exceptions): Initialize default to 0,
-fnew-exceptions sets to 1.
* except.c (output_exception_table_entry): Output New style exception
identifier into table, and replace compile time flag NEW_EH_MODEL
with runtime flag flag_new_exceptions.
(output_exception_table): Replace compile time flag NEW_EH_MODEL.
(expand_builtin_eh_stub_old): Duplicates original functionality of
expand_builtin_eh_stub.
(expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL.
* libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs.
(old_find_exception_handler): New func, same as find_exception_handler
except it works on the old style exception table.
(__throw): Replace NEW_EH_MODEL. Detect new model based on presence
of identifier in the exception table, and call appropriate routines.
1998-06-08 Andrew MacLeod <amacleod@cygnus.com>
* except.c (init_exception_processing): Remove NEW_EH_MODEL compile
time flag. Call __cp_eh_info instead of __cp_exception_info.
* exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag.
(__cp_exception_info): Return offset into cp_eh_info structure to
match what use to be the start of this structure.
(__cp_eh_info): New function to return a pointer to cp_eh_info struct.
(__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL
compile time flag.
(__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call
__cp_eh_info instead of __cp_exception_info.
From-SVN: r20336
