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* except.h (MUST_USE_SJLJ_EXCEPTIONS): Revert 2003-09-23 change.
Allow override.
* doc/tm.texi (MUST_USE_SJLJ_EXCEPTIONS): Document.
From-SVN: r71985
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* except.h (MUST_USE_SJLJ_EXCEPTIONS): Test for DWARF2_UNWIND_INFO
value.
From-SVN: r71690
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* except.c: Convert prototypes to ISO C90.
* except.h: Likewise.
* emit-rtl.c: Likewise.
* et-forest.c: Likewise.
* et-forest.h: Likewise.
* except.c: Likewise.
* explow.c: Likewise.
* expmed.c: Likewise.
* expr.c: Likewise.
* expr.h: Likewise.
From-SVN: r68674
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* except.c (EH_RETURN_STACKADJ_RTX): Do not define.
(EH_RETURN_HANDLER_RTX): Likewise.
(expand_builtin_eh_return): Do not copy stack adjustment
if EH_RETURN_STACKADJ_RTX is not defined.
(expand_eh_return): Likewise. Also, do not pass stack
adjustment as argument to the eh_return pattern.
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Do not define just
because EH_RETURN_STACKADJ_RTX is not defined.
* unwind-dw.c (uw_update_context_1): If EH_RETURN_STACKADJ_RTX
is not defined, treat stack pointer like a regular register.
(uw_init_context_1): Set up fake initial stack pointer register.
(uw_install_context_1): Do not compute stack adjustment if
EH_RETURN_STACKADJ_RTX is not defined.
* config/i386/i386.md ("eh_return"): Remove first argument.
* config/mips/mips.md ("eh_return"): Likewise.
* config/rs6000/rs6000.md ("eh_return"): Likewise.
* config/sh/sh.md ("eh_return"): Likewise.
* config/s390/s390.h (EH_RETURN_STACKADJ_RTX): Remove.
From-SVN: r66672
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* builtins.c (expand_builtin) <BUILT_IN_DWARF_FP_REGNUM>: Remove.
<BUILT_IN_DWARF_SP_COLUMN>: New.
* builtins.def (BUILT_IN_DWARF_FP_REGNUM): Remove.
(BUILT_IN_DWARF_SP_COLUMN): New.
* dwarf2out.c (expand_builtin_dwarf_fp_regnum): Remove.
(expand_builtin_dwarf_sp_column): New.
* except.h: Update to match.
* unwind-dw2.c (execute_stack_op): Correct stack push typo.
(execute_cfa_program): Record location expression address
before extracting length.
(uw_update_context_1): Install old CFA into stack pointer column.
(uw_init_context_1): Set cfa_reg to stack pointer column.
From-SVN: r66447
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* Makefile.in (calls.o): Depend on except.h.
* calls.c: Include except.h.
(emit_call_1): Call note_eh_region_may_contain_throw if
appropriate.
* except.c (eh_region): Add may_contain_throw.
(expand_eh_region_end_cleanup): Do not include handler code when
it cannot be reached.
(note_eh_region_may_contain_throw): New function.
* except.h (note_eh_region_may_contain_throw): New function.
* call.c (build_over_call): Use build_cxx_call.
(build_cxx_call): New method, split out of build_over_call.
* cp-tree.h (language_function): Add can_throw.
(build_cxx_call): Declare it.
* decl.c (finish_function): If a function does not contain any
calls to functions that can throw an exception, indicate that
fact.
* decl2.c (mark_used): Do not defer the instantiation of
functions, if the current function does not throw.
* optimize.c (maybe_clone_body): Copy TREE_NOTHROW to the clones.
* pt.c (instantiate_decl): Make sure import_export_decl is called
before emitting things.
* rtti.c (throw_bad_cast): Use build_cxx_call.
(build_dynamic_cast_1): Likewise.
* typeck.c (build_function_call): Likewise.
* g++.dg/template/recurse.C: Adjust location of error messages.
From-SVN: r65929
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From-SVN: r65074
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2002-08-24 Stuart Hastings <stuart@apple.com>
* function.h (struct function): Add flag
all_throwers_are_sibcalls.
* except.c (set_nothrow_function_flags): Replaces
nothrow_function_p. Set new flag.
* except.h (set_nothrow_function_flags): Replaces
nothrow_function_p.
* dwarf2out.c (struct dw_fde_struct): Add flag
all_throwers_are_sibcalls.
(output_call_frame_info): Test it.
(dwarf2out_begin_prologue) Propagate it from cfun to
dw_fde_struct.
* toplev.c (rest_of_compilation): Update calls to
nothrow_function_p.
From-SVN: r56561
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* basic-block.h (flow_delete_block_noexpunge): Declare.
(expunge_block_nocompact): Declare.
* cfg.c (expunge_block_nocompact): Split out from ...
(expunge_block): ... here.
* cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels.
(flow_delete_block_noexpunge): Split out from ...
(flow_delete_block): ... here.
* cfgcleanup.c (delete_unreachable_blocks): Compact while
removing dead blocks.
* except.c (exception_handler_labels): Remove.
(exception_handler_label_map): New.
(struct eh_region): Add aka member.
(mark_ehl_map_entry, mark_ehl_map, free_region): New.
(ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New.
(for_each_eh_label, for_each_eh_label_1): New.
(init_eh): Register exception_handler_label_map.
(free_eh_status): Use free_region.
(find_exception_handler_labels): Use the map, not the list.
(remove_exception_handler_label): Likewise.
(maybe_remove_eh_handler): Likewise.
(remove_eh_handler): Use the region aka bitmap.
* except.h (exception_handler_labels): Remove.
(for_each_eh_label): Declare.
* jump.c (rebuild_jump_labels): Don't check exception_handler_labels.
* loop.c (invalidate_loops_containing_label): New.
(find_and_verify_loops): Use it. Use for_each_eh_label.
* sched-rgn.c (is_cfg_nonregular): Use
current_function_has_exception_handlers.
From-SVN: r52100
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parameter will not call local variable destructors if exception is thrown.)
PR c++/5636
* tree.h (CLEANUP_EH_ONLY): New macro.
* stmt.c (expand_decl_cleanup_eh): New fn.
(expand_cleanups): Check CLEANUP_EH_ONLY.
* c-semantics.c (genrtl_decl_cleanup): Just take the CLEANUP_STMT.
Use expand_decl_cleanup_eh.
(expand_stmt): Adjust.
* c-common.h: Adjust prototype.
* cp/semantics.c (nullify_returns_r): Just set CLEANUP_EH_ONLY on
cleanup for nrv.
* except.c (struct eh_status): Remove protect_list.
(begin_protect_partials, end_protect_partials): Remove.
(add_partial_entry): Remove.
* except.h: Remove prototypes.
* expr.c (expand_expr) [WITH_CLEANUP_EXPR, TARGET_EXPR]: Use
expand_decl_cleanup_eh.
cp/:
* semantics.c (finish_eh_cleanup): New fn.
* cp-tree.h: Add prototype.
* init.c (perform_member_init, expand_cleanup_for_base): Use
finish_eh_cleanup.
* cp-tree.def (SUBOBJECT, CTOR_STMT): Remove.
* cp-tree.h: Remove references.
* decl.c (begin_constructor_body, end_constructor_body): Likewise.
* dump.c (cp_dump_tree): Likewise.
* pt.c (tsubst_expr): Likewise.
* semantics.c (genrtl_ctor_stmt, genrtl_subobject): Remove.
(cp_expand_stmt): Remove handling of CTOR_STMT and SUBOBJECT.
* tree.c (cp_statement_code_p): Likewise.
* init.c (build_new_1): Set CLEANUP_EH_ONLY on deleting cleanup.
From-SVN: r51827
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* except.c (current_function_has_exception_handlers): New.
* except.h: Declare it.
* sibcall.c (optimize_sibling_and_tail_recursive_call): Use it.
Combine tests that disable all sibcalls for the function.
From-SVN: r51054
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* attribs.c (handle_deprecated_attribute): constify WHAT.
* diagnostic.c (warn_deprecated_use): Add braces, fixes
dangling else warning and constify WHAT.
* except.h (struct function, struct inline_remap): Move
struct tag forward defs before all prototypes.
(duplicate_eh_regions): Whitespace.
From-SVN: r48799
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* except.h: Remove forward def of tree_node, rtx_def and
define of tree, rtx. Also remove undefs.
From-SVN: r48416
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* ChangeLog.0, ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog,
FSFChangeLog.10, c-decl.c, cppfiles.c, cppinit.c, cpplex.c,
cpplib.c, cppmain.c, cse.c, df.c, diagnostic.c, dominance.c,
dwarf2out.c, dwarfout.c, emit-rtl.c, errors.c, except.c, except.h,
explow.c, function.c, gcse.c, genrecog.c, predict.c, regmove.c,
sched-rgn.c, ssa-ccp.c, stmt.c, toplev.c: Fix spelling errors.
From-SVN: r47279
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eh_region):...
* except.c: Support for catching a list of types with a single handler
(struct eh_region): Change type and filter to lists for catch regions.
(mark_eh_region): Mark the filter list for GC also.
(expand_start_catch): Always build a list if argument not NULL and
register each type of the list through add_type_for_runtime.
(duplicate_eh_region_1): Change type into type_list for catch regions.
(assign_filter_values): Assign a filter to each type associated with a
catch region. Assign filter for NULL types in a unique entry in the
filter list.
(build_post_landing_pads): Emit compare and jump for each filter of
the list associated with a catch region.
(reachable_next_level): When the type thrown is known, stop the search
as soon as one type within a catch list matches. Also, a handler is
potentially reachable only if at least one of the types it catches
has not been previously caught.
(collect_one_action_chain): Retrieve the filter for a NULL type list
from the first filter list entry. For non NULL type lists, add an
action record for every filter assigned.
* except.h: Reflect changes in comment before expand_start_catch.
From-SVN: r47087
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* ChangeLog.0, ChangeLog.1, ChangeLog.2, ChangeLog.3, ChangeLog.4,
ChangeLog.5, ChangeLog, FSFChangeLog.10, FSFChangeLog.11,
c-common.c, c-common.h, c-parse.in, c-typeck.c, cfg.c, config.gcc,
configure, configure.in, except.c, except.h, flow.c, function.c,
gcc.c, gcse.c, genrecog.c, libgcc2.c, loop.c, loop.h, params.def,
predict.def, predict.h, reg-stack.c, regmove.c, sched-deps.c,
sched-int.h, sibcall.c, ssa.c, stringpool.c, toplev.c, tree.c,
unroll.c: Fix spelling errors.
From-SVN: r46595
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* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
bitmap.h, builtin-types.def, builtins.c, builtins.def,
c-aux-info.c, c-common.c, c-common.def, c-common.h,
c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
conditions.h, config.gcc, configure.frag, configure.in,
conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
emit-rtl.c, errors.c, errors.h, except.c, except.h,
exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
gencheck.c, gencodes.c, genconfig.c, genemit.c,
genextract.c, genflags.c, gengenrtl.c, genmultilib,
genopinit.c, genoutput.c, genpeep.c, genrecog.c,
gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
params.h, predict.c, predict.def, predict.h, prefix.c,
prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
regclass.c, regmove.c, regrename.c, regs.h, reload.c,
reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
xcoffout.h: replace "GNU CC" with "GCC".
From-SVN: r45105
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not just whether it is defined.
* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
DWARF2_UNWIND_INFO not just whether it is defined.
From-SVN: r43829
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* except.c (get_exception_pointer, get_exception_filter): Take a
struct function. Update all callers.
* except.h (get_exception_pointer): Update declaration.
* expr.c (expand_expr): Update get_exception_pointer call.
* integrate.c (expand_inline_function): Remap the exception pointer
from callee to caller.
From-SVN: r43060
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From-SVN: r42615
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* except.h (protect_cleanup_actions): Remove it.
(lang_protect_cleanup_actions): Declare it.
* except.c (protect_cleanup_actions): Remove it.
(lang_protect_cleanup_actions): New variable.
(init_eh): Don't make protect_cleanup_actions a GC root.
(expand_eh_region_and_cleanup): Call
lang_protect_cleanup_actions.
(output_function_exception_table): Remove unused `align'
variable.
* varasm.c (assemble_external): Abort if we have not yet
opened the assembly output file.
* except.c (cp_protect_cleanup_actions): New function.
(init_exception_processing): Don't set protect_cleanup_actions
here. Do set lang_protect_cleanup_actions.
From-SVN: r42218
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* defaults.h (ASM_PREFERRED_EH_DATA_FORMAT): New.
* dwarf2asm.c (dw2_force_const_mem, dw2_output_indirect_constant_1,
dw2_output_indirect_constants, dw2_asm_output_encoded_addr_rtx): New.
* dwarf2asm.h (dw2_asm_output_encoded_addr_rtx): Prototype.
(dw2_output_indirect_constants): Prototype.
* dwarf2out.c (dwarf2out_begin_prologue): Generate
current_function_func_begin_label if we'll need it for EH. Exit
early for IA64_UNWIND_INFO.
* except.c: Get DW_EH_PE_* defines from dwarf2.h.
(eh_data_format_name): Update for indirect references.
(output_function_exception_table): Care for IA64_UNWIND_INFO.
Handle ASM_PREFERRED_EH_DATA_FORMAT.
* except.h (MUST_USE_SJLJ_EXCEPTIONS): IA64_UNWIND_INFO needn't
define HAVE_eh_return etc.
* final.c (final_start_function): Always call dwarf2out_begin_prologue.
(final_end_function): Don't call output_function_exception_table.
* toplev.c (compile_file): Call dw2_output_indirect_constants.
(rest_of_compilation): Invoke output_function_exception_table
for ia64 before assemble_end_function.
* tm.texi (ASM_PREFERRED_EH_DATA_FORMAT): Document.
(ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Document.
* unwind-dw2.c (_Unwind_GetTextRelBase, _Unwind_GetDataRelBase): New.
* unwind.h: Declare them.
* libgcc-std.ver: Export them.
* unwind-pe.h: New file.
* config/alpha/elf.h (ASM_PREFERRED_EH_DATA_FORMAT): New.
* config/ia64/fde-glibc.c: Use "struct unw_table_entry"
instead of "fde".
(find_fde_for_dso): Extract DT_PLTGOT.
(_Unwind_FindTableEntry): Rename from __ia64_find_fde; return
the segment and gp as well.
* config/ia64/frame-ia64.c: Remove file.
* config/ia64/frame-ia64.h: Remove file.
* config/ia64/unwind-ia64.c: New file.
* config/ia64/unwind-ia64.h: New file.
* config/ia64/ia64.h (ASM_OUTPUT_EH_CHAR): Remove.
(ASM_OUTPUT_EH_SHORT, ASM_OUTPUT_EH_INT): Remove.
(ASM_OUTPUT_EH_DOUBLE_INT): Remove.
(ASM_PREFERRED_EH_DATA_FORMAT): New.
(ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New.
(IA64_UNWIND_INFO): Re-enable.
(HANDLER_SECTION): Remove.
(EH_RETURN_DATA_REGNO): New.
* config/ia64/ia64.md (exception_receiver): Remove.
* config/ia64/t-glibc (LIB2ADDEH): Re-enable.
* config/ia64/t-ia64 (LIB2ADDEH): Re-enable.
From-SVN: r41981
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* except.h: Add prototype declaration for
expand_builtin_init_dwarf_reg_sizes.
From-SVN: r41823
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* except.h (lang_eh_type_covers): Mark extern.
(lang_eh_runtime_type): Likewise.
From-SVN: r41024
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From-SVN: r40995
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From-SVN: r40924
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* except.c (can_throw_internal): Rename from can_throw.
* except.h, resource.c: Update references.
From-SVN: r40913
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* except.h (flag_non_call_exceptions): Move ...
* flags.h: ... here.
From-SVN: r40906
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From-SVN: r40905
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* bb-reorder.c, dwarf2out.c, except.c, except.h, flow.c,
jump.c, toplev.c:
Rename asynchronous_exceptions to flag_non_call_exceptions.
* java/decl.c (end_java_method): Rename asynchronous_exceptions to
flag_non_call_exceptions.
From-SVN: r40902
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* Makefile.in (resource.o): Depend on except.h.
* except.h (output_exception_table_data): Prototype.
* genconfig.c (gen_peephole2): Prototype.
* genemit.c (main): Include ggc.h.
* genoutput.c: Revert parts of last change: include errors.h
(main): Set progname.
* recog.c: Include hard-reg-set.h before recog.h.
* resource.c: Include except.h.
From-SVN: r34219
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* except.h (can_throw): Declare it.
* except.c (can_throw): Give it external linkage.
* resource.c (find_dead_or_set_registers): Use can_throw.
From-SVN: r34178
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2000-05-25 Andrew MacLeod <amacleod@cygnus.com>
Andrew Haley <aph@cygnus.com>
* except.c (func_eh_entry): Add emitted field.
(new_eh_region_entry): Set emitted field to 0;
(output_exception_table_entry): Only emit previously un-emitted data,
and send it to the eh_data section.
(output_exception_table): Break out common parts. Output
exception table for entire compilation unit to eh_data section.
(output_exception_table_data): Common parts of output_exception_table.
Send output to eh_data section.
(output_function_exception_table): Output exception table data for
a single function to eh_data section.
(free_exception_table): New external to free the table.
* except.h (free_exception_table): Add prototype.
(output_function_exception_table): Add prototype.
* final.c (final_end_function): Output function exception table
for IA64_UNWIND_INFO.
(final_scan_insn): Emit any unwind directives for an insn.
* frame-dwarf2.c: New file containing all DWARF 2 specific code
from frame.c.
* frame.c: Remove all DWARF 2 specific code.
* config/ia64/frame-ia64.c: New file.
(gthread_stuff): Make all gthread available with
IA64_UNWIND_INFO.
(dwarf_fde): Define an IA64 struct for dwarf_fde.
(__register_frame_info, __register_frame): Move to common area of file.
(__register_frame_info_table, __register_frame_table): Move to common i
area.
(__deregister_frame_info, __deregister_frame): Move to common area.
(__frame_init, find_fde): New versions for IA64_UNWIND_INFO.
(read_uleb128): New version for ia64.
(get_unwind_record): Read the next IA-64 unwind record.
(read_R_record): Read a region header record.
(process_a_b_reg_code): X record helper.
(read_X_record): Read an X format record.
(read_B_record): Read a B format record.
(P3_record_types): List of record types matching the P3 format.
(P7_record_types): List of record types matching the P7 format.
(P8_record_types): List of record types matching the P8 format.
(read_P_record): Read a P format record.
(init_ia64_reg_loc): Set default fields for a register.
(init_ia64_unwind_frame): Set defaults for all register records.
(execute_one_ia64_descriptor): Execute one descriptor record.
(rse_address_add): Calculate the position of a local reg in memory.
(normalize_reg_loc): Turn a location descriptor into a memory address.
(maybe_normalize_reg_loc): Only normalize a descriptor if it falls
within a specified PC offset range.
(get_real_reg_value): Given a register location, retrieve its value.
(set_real_reg_value): Change the value of a register location.
(copy_reg_value): Copy reg values, if needed.
(copy_saved_reg_state): Copy all registers that need to be copied.
(process_state_between): Normalize all frame register records that
fall within the specified PC range.
(frame_translate): Take a processed frame description, and turn
everything into addresses.
(build_ia64_frame_state ): Find and create frame state record for a PC.
(get_personality): Get the personality routine for a given frame.
(get_except_table): Get the exception table for a given frame.
(record_name): Unwind record names for debugging.
(print_record): Print and unwind record.
(print_all_records): Print an entire unwind image.
(__ia64_backtrace): Print a backtrace.
(ia64_backtrace_helper): New function.
(__register_frame_info_aux): New function.
* config/ia64/crtend.asm (__do_frame_setup_aux): New function.
* frame.h (enum unw_record_type): New unwind record types.
(struct unw_p_record, unw_b_record, unw_x_record) : New unwind records.
(struct unw_r_record, unwind_record): New unwind record structs.
(struct unwind_info_ptr): Unwind information layout.
(IA64_UNW_LOC_TYPE_*): Macros for different types for location
descriptors.
(struct ia64_reg_loc): Register location description.
(struct ia64_frame_state): Location of all registers in a frame.
(struct object): Add pc_base and fde_end for IA64_UNWIND_INFO.
* libgcc2.c (__ia64_personality_v1): Personality routine.
(__calc_caller_bsp): Calculate the bsp register for the caller's
frame.
(ia64_throw_helper): Figure out who to return to and set up the
registers.
(__throw): Throw routine.
* output.h (assemble_eh_align, assemble_eh_label): New functions
to generate EH info where we want it.
(assemble_eh_integer): New function.
* toplev.c (compile_file): Output module level exception table for
non-ia64 targets.
(main): Set exceptions_via_longjump and flag_new_exceptions based
on IA64_UNWIND_INFO too.
* varasm.c (assemble_eh_label): Generate a label via
ASM_OUTPUT_EH_LABEL if it has been specified.
(assemble_eh_align): Generate an alignment directive via
ASM_OUTPUT_EH_ALIGN if it has been specified.
(assemble_eh_label): Generate an integer value via
ASM_OUTPUT_EH_type if they have been specified.
* config/ia64/ia64.c (rtx_needs_barrier): Add flushrs.
(ia64_init_builtins): Add __builtin_ia64_bsp
and __builtin_ia64_flushrs.
(ia64_expand_builtin): Add IA64_BUILTIN_BSP and
IA64_BUILTIN_FLUSHRS.
* config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and
IA64_BUILTIN_FLUSHRS.
* config/ia64/ia64.md (flushrs): New insn to flush the register
stack. Add to unspec list.
* config/ia64/crtbegin.asm (frame_object): Change size.
(__do_frame_setup_aux): New function.
* config/ia64/crtend.asm: call __do_frame_setup_aux.
* config/ia64/t-ia64 (LIB2ADDEH): Add.
* Makefile.in (LIB2ADDEH): Add.
(LIB2ADD): Use LIB2ADDEH.
Co-Authored-By: Andrew Haley <aph@cygnus.com>
From-SVN: r34169
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* emit-rtl.c (push_to_full_sequence, end_full_sequence): New functions.
* except.c (emit_cleanup_handler): Use them.
(expand_end_all_catch): Likewise.
* function.c (fixup_var_refs): Likewise.
(expand_function_end): Clear catch_clauses_last.
* rtl.h (push_to_full_sequence, end_full_sequence): Declare.
* except.h (struct eh_status): New field x_catch_clauses_last.
(catch_clauses_last): New define.
* cp/except.c (expand_exception_blocks): Clear catch_clauses_last.
* java/except.c (emit_handlers): Clear catch_clauses_last.
From-SVN: r32643
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* except.c (can_throw): See through a SEQUENCE.
(nothrow_function_p): New fn.
* except.h: Declare it.
* function.c (current_function_nothrow): New var.
(prepare_function_start): Initialize it.
* output.h: Declare it.
* toplev.c (rest_of_compilation): Set it.
* dwarf2out.c (dwarf2out_begin_prologue): Use it.
From-SVN: r32449
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From-SVN: r32174
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* eh-common.h: PROTO -> PARAMS.
* emit-rtl.c: Likewise.
* errors.c: Likewise.
* errors.h: Likewise.
* except.c: Likewise.
* except.h: Likewise.
* explow.c: Likewise.
* expmed.c: Likewise.
* expr.c: Likewise.
* expr.h: Likewise.
* final.c: Likewise.
* fix-header.c: Likewise.
* flow.c: Likewise.
* fold-const.c: Likewise.
* function.c: Likewise.
* function.h: Likewise.
* gcc.c: Likewise.
* gcov-io.h: Likewise.
* gcov.c: Likewise.
* gcse.c: Likewise.
From-SVN: r31419
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From-SVN: r31033
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* except.h (struct eh_queue): Add `next' pointer.
(struct eh_status): Make x_ehqueue a pointer.
(push_ehqueue): Declare.
(pop_ehqueue): Likewise.
* except.c (expand_eh_region_end): Adjust now that ehqueue is a
pointer.
(expand_fixup_region_end): Likewise.
(expand_leftover_cleanups): Likewise.
(push_ehqueue): Define.
(pop_ehqueue): Likewise.
(emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather
than doing it inline.
(expand_start_all_catch): Adjust now that ehqueue is a
pointer.
(mark_eh_queue): Mark all level of the queue.
(mark_eh_status): Adjust now that ehqueue is a
pointer.
(init_eh_for_function): Allocate ehqueue.
(free_eh_status): Free it.
* stmt.c (expand_cleanups): Save the ehqueue around the cleanup
expansion for a fixup.
From-SVN: r30874
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* except.h (eh_status): Adjust documentation for x_protect_list.
(begin_protect_partials): New function.
* except.c (enqueue_eh_entry): Fix formatting.
(get_first_handler): Add consistency check.
(add_partial_entry): Adjust usage of protect_list.
(emit_cleanup_handler): Save and restore ehqueue.
(expand_start_all_catch): Add comment.
(begin_protect_partials): New function.
(end_protect_partials): Adjust usage of protect_list.
(init_eh_for_function): Use xcalloc.
From-SVN: r30667
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* except.h (struct eh_entry): Add goto_entry_p.
(eh_region_from_symbol): Remove prototype.
* except.c (find_func_region_from_symbol): New function.
(emit_cleanup_handler): Likewise.
(eh_region_from_symbol): Make it static.
(add_new_handler): Verify the argument.
(find_func_region): Update comment.
(expand_eh_region_end): Expand handlers here, rater than waiting
until expand_leftover_cleanups or start_all_catch.
(expand_leftover_cleanups): Don't expand here.
(expand_start_all_catch): Or here.
(expand_rethrow): Check the return value from find_func_region.
* function.c (expand_function_end): Emit the catch_clauses.
From-SVN: r30576
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From-SVN: r29730
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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
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From-SVN: r28357
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From-SVN: r24535
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* 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
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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
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* tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
(BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
(BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
(BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
* c-decl.c (init_decl_processing): Update accordingly.
* expr.c (expand_builtin): Likewise.
* cp/decl.c (init_decl_processing): Likewise.
* rtl.h (global_rtl): Add cfa entry.
(virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
(LAST_VIRTUAL_REGISTER): Update.
* emit-rtl.c (global_rtl): Add cfa entry.
(init_emit): Initialize it.
* function.c (cfa_offset): New.
(instantiate_virtual_regs): Initialize it.
(instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
(expand_function_end): Call expand_eh_return.
* tm.texi (ARG_POINTER_CFA_OFFSET): New.
* except.c (current_function_eh_stub_label): Kill.
(current_function_eh_old_stub_label): Likwise; update all references.
(expand_builtin_set_return_addr_reg): Kill.
(expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
(expand_builtin_set_eh_regs): Kill.
(eh_regs): Produce a third reg for the actual handler address.
(eh_return_context, eh_return_stack_adjust): New.
(eh_return_handler, eh_return_stub_label): New.
(init_eh_for_function): Initialize them.
(expand_builtin_eh_return, expand_eh_return): New.
* except.h: Update prototypes.
* flow.c (find_basic_blocks_1): Update references to the stub label.
* function.h (struct function): Kill stub label elements.
* libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
register number is one that would be in the previous window.
Provide a dummy definition for non-windowed targets.
(get_reg_addr): New function.
(get_reg, put_reg, copy_reg): Use it.
(__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
* alpha.c (alpha_eh_epilogue_sp_ofs): New.
(alpha_init_expanders): Initialize it.
(alpha_expand_epilogue): Use it.
* alpha.h: Declare it.
* alpha.md (eh_epilogue): New.
* m68h.h (ARG_POINTER_CFA_OFFSET): New.
* sparc.h (ARG_POINTER_CFA_OFFSET): New.
From-SVN: r22436
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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
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* 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
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