* calls.c (expand_call) : Encapsulate code into
copy_blkmode_from_reg.
* expr.c (copy_blkmode_from_reg): New function.
* expr.h (copy_blkmode_from_reg): New function.
* integrate.c (function_cannot_inline_p): We can inline
these now.
(expand_inline_function): Use copy_blkmode_from_reg
if needed. Avoid creating BLKmode REGs.
(copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
object.
From-SVN: r22714
* c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
* expr.c (store_field): Add alias_set parameter. Set the
MEM_ALIAS_SET accordingly, if the target is a MEM.
(expand_assignment): Use it.
(store_constructor_field): Pass 0.
(expand_expr): Likewise.
From-SVN: r22620
* expr.c (store_constructor): When initializing a field that is smaller
than a word, at the start of a word, try to widen it to a full word.
* cse.c (cse_insn): When we are about to change a register,
remove any invalid references to it.
(remove_invalid_subreg_refs): New function.
(mention_regs): Special treatment for SUBREGs.
(insert_regs): Don't strip SUBREG for call to mention_regs.
Check if reg_tick needs to be bumped up before that call.
(lookup_as_function): Try to match known word_mode constants when
looking for a norrower constant.
(canon_hash): Special treatment for SUBREGs.
From-SVN: r22567
* expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
consistent.
* tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
*sequences* *below* which scalar moves will be used.
From-SVN: r22107
* expr.c (emit_block_move): Do not call memcpy as a libcall
instead build up a CALL_EXPR and call it like any other
function.
(clear_storage): Similarly for memset.
From-SVN: r21831
* expr.c (safe_from_p): Change code to ERROR_MARK only when not
accessing nodes.
* toplev.c (display_help): Add braces to shut up warnings.
* fold-const.c (non_lvalue): Don't deal with null pointer
constants here.
(fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
From-SVN: r21698
* expr.c (expand_expr): Only set MEM_IN_STRUCT_P if the memory address
is not varying for REFERENCE_TYPE or when we think we might have found
an optimized access to the first element in an array.
From-SVN: r21099
* expr.c (emit_group_load, emit_group_store): Rewrite considering
the size and alignment of the structure being manipulated.
* expr.c, calls.c, function.c: Update all callers.
* expr.h: Update prototypes.
* cse.c (invalidate): Cope with parallels.
From-SVN: r20867
* rtl.def (CONSTANT_P_RTX): New.
* rtl.h (CONSTANT_P): Recognize it.
* cse.c (fold_rtx): Eliminate it.
* expr.c (can_handle_constant_p): New variable.
(init_expr_once): Initialize it.
(expand_builtin): Generate CONSTANT_P_RTX if the expression is not
immediately recognizable as a constant.
From-SVN: r20846
* 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
* invoke.texi (-fstrict-aliasing): Document.
* rtl.texi (MEM_ALIAS_SET): Document.
* flags.h (flag_strict_aliasing): Declare.
* toplev.c (flag_strict_aliasing): Define.
(f_options): Add -strict-aliasing.
(main): Set flag_strict_aliasing if -O2 or higher.
* tree.h (tree_type): Add alias_set field.
(TYPE_ALIAS_SET): New macro.
(TYPE_ALIAS_SET_KNOWN_P): Likewise.
(get_alias_set): Declare.
* tree.c (lang_get_alias_set): Define.
(make_node): Initialize TYPE_ALIAS_SET.
(get_alias_set): New function.
* print-tree.c (print_node): Dump the alias set for a type.
* c-tree.h (c_get_alias_set): Declare.
* c-common.c (c_get_alias_set): New function.
* c-decl.c (init_decl_processing): Set lang_get_alias_set.
* expr.c (protect_from_queue): Propogage alias sets.
(expand_assignment): Calculate alias set for new MEMs.
(expand_expr): Likewise.
* function.c (put_var_into_stack): Likewise.
(put_reg_into_stack): Likewise.
(gen_mem_addressof): Likewise.
(assign_parms): Likewise.
* stmt.c (expand_decl): Likewise.
* varasm.c (make_decl_rtl): Eliminate redundant clearing of
DECL_RTL. Calculate alias set for new MEMs.
* rtl.def (REG): Add dummy operand.
(MEM): Add extra operand to store the MEM_ALIAS_SET.
* rtl.h (MEM_ALIAS_SET): New macro.
(gen_rtx_MEM): Declare.
* emit-rtl.c (gen_rtx_MEM): New function.
* gengenrtl.c (sepcial_rtx): Make MEMs special.
* alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): New macro.
(DIFFERENT_ALIAS_SETS_P): Likewise.
(canon_rtx): Propogate the alias set to the new MEM.
(true_dependence): Check the alias sets.
(anti_dependence): Likewise.
(output_dependence): Likewise.
* explow.c (stabilize): Progoate alias sets.
* integrate.c (copy_rtx_and_substitute): Likewise.
* final.c (alter_subreg): Make sure not to leave MEM_IN_STRUCT_P
in an unpredictable state. Propogate alias sets.
* reload1.c (reload): Clear MEM_ALIAS_SET for new MEMs about which
we have no alias information.
From-SVN: r20719
* expr.c (expand_assignment): Rework address calculation for structure
field members to expose more invariant computations to the loop
optimizer.
(expand_expr): Likewise.
From-SVN: r20705
* expr.c (get_memory_rtx): New function.
(expand_builtin): Call get_memory_rtx for MEM arguments to builtin
string functions.
* expmed.c (init_expmed): Initialize all elements of *_cost arrays.
From-SVN: r20700
* haifa-sched.c (haifa_classify_insn): TRAP_IF is risky.
(sched_analyze_2): Allow scheduling TRAP_IF.
* reorg.c (mark_referenced_resources): Examine operands of TRAP_IF.
* rtl.h (TRAP_CODE): New macro.
* rtl.def (TRAP_IF): Change second operand type to rtx.
* optabs.c (gen_cond_trap): New function.
(init_traps): New function.
(init_optabs): Call init_traps.
* expr.h: Declare gen_cond_trap.
* jump.c (jump_optimize): Optimize jumps to and around traps.
* sparc.md: Define trap instructions.
* rs6000.md: Define trap instructions.
* rs6000.c (print_operand): New code 'V' for trap condition.
(trap_comparison_operator): New function.
* m88k.md: Update use of TRAP_IF.
* tree.h (enum built_in_function): New function code BUILT_IN_TRAP.
* c-decl.c (init_decl_processing): New builtin __builtin_trap.
* expr.c (expand_builtin): Handle BUILT_IN_TRAP.
* expr.c (expand_builtin): Error if __builtin_longjmp second argument
is not 1.
From-SVN: r20543
* expr.c (expand_builtin_setjmp): Store const1_rtx in target.
(expand_builtin_longjmp): Abort if value isn't const1_rtx.
Delete code storing value in static_chain_rtx.
(expand_builtin, case BUILT_IN_LONGJMP): Pass NULL_RTX for target
to second expand_expr call.
From-SVN: r20418
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
Thu Jun 4 14:35:27 1998 David Edelsohn <edelsohn@mhpcc.edu>
* tree.c (get_inner_array_type): New function.
* tree.h (get_inner_array_type): Prototype.
* expr.h (STACK_SAVEAREA_MODE): New macro.
* expr.c (expand_builtin_setjmp): Initialize sa_mode using
STACK_SAVEAREA_MODE.
(expand_builtin_longjmp): Likewise.
* explow.c (emit_stack_save): Likewise.
(allocate_dynamic_stack_space): Use Pmode not insn_operand_mode.
* rs6000/aix41.h (ASM_CPU_SPEC): Define relative to ASM_DEFAULT_SPEC.
(CPP_CPU_SPEC): Define relative to CPU_DEFAULT_SPEC.
* rs6000/aix43.h: New file.
* rs6000/t-aix43: New file.
* rs6000/x-aix41: New file.
* rs6000/x-aix43: New file.
* configure.in (rs6000-ibm-aix*): Use them.
* rs6000/powerpc.h: Delete.
* rs6000/sysv4.h: Move necessary powerpc.h definitions to here.
* rs6000/netware.h: and here.
* rs6000/win-nt.h: and here.
* rs6000/rs6000.c (processor_target_table, 620): Do not affect
MASK_POWERPC64.
(rs6000_override_options): Ignore flag_pic for AIX.
(rs6000_immed_double_const): Delete.
(u_short_cint_operand): Don't assume 32-bit CONST_INT.
(reg_or_u_short_operand): Don't assume 32-bit CONST_INT.
(num_insns_constant): mask64_operand() is 2 insns.
(logical_operand): Don't assume 32-bit CONST_INT.
(non_logical_cint_operand): Don't assume 32-bit CONST_INT.
(easy_fp_constant): Any CONST_DOUBLE_HIGH is okay for 64-bit.
(mask_constant): HOST_WIDE_INT parameter.
(non_and_cint_operand): Delete.
(mask64_operand): New function.
(and64_operand): New function.
(function_arg_advance): DImode arguments do not need special
alignment when 64-bit.
(function_arg): Likewise.
(setup_incoming_varargs): Reverse reg_size assignment.
(print_operand): HOST_WIDE_INT second parameter.
(print_operand, 'B'): New case.
(print_operand, 'M'): Fix typo in lossage string.
(print_operandm 'S'): New case.
(rs6000_stack_info): Reverse reg_size assignment. Use total_raw_size
to compute AIX push_p. Use reg_size to compute {cr,lr}_save_offset.
(rs6000_output_load_toc_table): Reverse init_ptr assignment. Use
TARGET_64BIT not TARGET_POWERPC64. Convert fprintf to fputs.
Load GOT highpart, don't add it. Add lowpart with {cal|la}.
(rs6000_allocate_stack_space): Use {cal|la}.
(output_epilog): Use {cal|la}
(output_function_profiler): Add call glue to mcount call.
Load GOT highpart, don't add it. Add lowpart with {cal|la}.
* rs6000/rs6000.h (TARGET_SWITCHES): Add powerpc64.
(STACK_BOUNDARY): Depend on TARGET_32BIT.
(ADJUST_FIELD_ALIGN): Calculate array alignment using innermost type.
(CONST_OK_FOR_LETTER_P): Don't assume 32-bit CONST_INT.
(EXTRA_CONSTRAINTS): Remove NT 'S' and 'T'. Replace 'S' with
64-bit mask operand.
(RS6000_SAVE_TOC): Depend on TARGET_32BIT.
(STACK_SAVEAREA_MODE): New macro.
(LEGITIMATE_CONSTANT_P): DImode okay for 64bit.
(LEGITIMIZE_RELOAD_ADDRESS): New macro.
(RTX_COSTS, AND/IOR/XOR): Reflect current machine description.
(ASM_FILE_START): Emit 64-bit ABI directive.
(ASM_DECLARE_FUNCTION_NAME): Align CSECT on doubleword in 64-bit mode.
(ASM_OUTPUT_SPECIAL_POOL_ENTRY): DImode okay for 64-bit.
(PREDICATE_CODES): Add "and64_operand" and "mask64_operand".
Delete "non_and_cint_operand". "input_operand" includes CONST_DOUBLE.
* rs6000/rs6000.md (iorsi3, xorsi3): Use HOST_WIDE_INT for mask.
Restore define_splits.
(floatsidf2, floatunssidf2): Remove !TARGET_POWERPC64 final constraint.
(floatsidf2_internal, floatunssidf2_internal2): Likewise.
Do not specify base register operand mode.
(floatsidf2_loadaddr): Do not specify base register operand mode.
(floatsidf2_store1, floatsidf2_store2): Operand 1 must be base
register; do not specify mode. Remove !TARGET_POWERPC64 final
constraint.
(floatsidf2_load): Do not specify base register operand mode. Remove
!TARGET_POWERPC64 final constraint.
(fix_truncdfsi2_internal, fix_truncdfsi2_{store,load}): Do not specify
base register operand mode.
(adddi3): Split large constants early.
(absdi3): Shift by 63, not 31.
(*mulsidi3_ppc64): New pattern.
(rotldi3): Add masking combiner patterns.
(anddi3): Add rldic{r,l} masking. Remove split of large constants
because PPC insns zero-extend.
(iordi3, xordi3): Split large constants early.
(movsi matcher): Remove S and T constraints.
(movsf const_double): create SImode constant from TARGET_DOUBLE.
(movdf_hardfloat32): Add default abort() case.
(movdf easy_fp_const): create DImode constant from TARGET_DOUBLE.
(movdi): Remove 64-bit constant generator. Try to convert
CONST_DOUBLE to CONST_INT. Handle TOC memory constants.
(movdi_32): Add default abort() case.
(movdi_64): Add numerous ways to split 64-bit constants.
Make catch-all define_split more optimal and never FAIL.
(movti_ppc64): Add default abort() case.
(allocate_stack): Remove operand modes. Use Pmode.
(restore_stack_block): Remove operand modes. Generate Pmode
temporary.
(save_stack_nonlocal, restore_stack_nonlocal): Generate Pmode
temporary. Save area is double Pmode.
(call_indirect_aix64, call_value_indirect_aix64): New patterns.
(call, call_value): Do not specify address operand mode. Choose
appropriate AIX ABI.
(*call_local64, *ret_call_local64): New patterns.
(*call_nonlocal_aix64, *ret_call_nonlocal_aix64): New patterns.
(*ret_call_nonlocal_aix32): Use call_value_indirect for REG.
(compare): Materialize DImode truthvalues.
From-SVN: r20229
* expr.c (safe_from_p): Avoid combinatorial explosion
over duplicate SAVE_EXPRs by ensuring we never recurse
on one that has already been visited.
From-SVN: r20214
* expr.c (expand_expr, case EXPR_WITH_FILE_LOCATION): Save/restore
input_filename and lineno around expand_expr call. Set them to values
in WFL before expand_expr call.
From-SVN: r19778
* Makefile.in (c-lang.o): Depend on c-tree.h, c-lex.h and toplev.h.
(c-lex.o): Depend on output.h.
(c-common.o): Likewise.
(stmt.o): Likewise.
(calls.o): Likewise.
(integrate.o): Depend on toplev.h.
(regclass.o): Depend on output.h.
(final.o): Depend on reload.h.
* c-common.c: Include output.h.
(check_format_info): Remove unused variable `integral_format'.
* c-decl.c (print_lang_decl): Mark parameters `file', `node' and
`indent' with ATTRIBUTE_UNUSED.
(print_lang_type): Likewise.
(maybe_build_cleanup): Likewise for parameter `decl'.
(copy_lang_decl): Likewise for parameter `node'.
* c-lang.c: Include c-tree.h, c-lex.h and toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(lookup_interface): Likewise for parameter `arg'.
(is_class_name): Likewise.
(maybe_objc_check_decl): Likewise for parameter `decl'.
(maybe_objc_comptypes): Likewise for parameters `lhs', `rhs' and
`reflexive'.
(maybe_objc_method_name): Likewise for parameter `decl'.
(build_objc_string): Likewise for parameters `len' and `str'.
* c-lex.c: Include output.h.
* c-lex.h (position_after_white_space): Correct typo in prototype.
* c-tree.h (finish_file, c_expand_start_cond, c_expand_start_else,
c_expand_end_cond, init_iterators): Add prototypes.
* caller-save.c (set_reg_live): Mark parameters `reg' and `setter'
with ATTRIBUTE_UNUSED.
* calls.c: Include output.h.
* cccp.c (pipe_closed): Mark parameter `signo' with
ATTRIBUTE_UNUSED.
* combine.c: Move inclusion of expr.h to after insn-config.h.
* iris6.h (ASM_IDENTIFY_GCC, ASM_IDENTIFY_LANGUAGE): Don't define
as empty, rather define as ((void)0).
* sparc.c (sparc_check_64): Add braces around ambiguous `else'.
Add parentheses around assignment used as truth value.
* cplus-dem.c (squangle_mop_up): Change return type to void.
(internal_cplus_demangle): Remove unused parameter `options'.
All callers changed.
(cplus_demangle_opname): Remove function wide variable `int i' and
replace with `size_t i' at each location where it is used.
(cplus_demangle_opname): change type of `i' from int to size_t.
* cppexp.c (right_shift): Mark parameter `pfile' with
ATTRIBUTE_UNUSED.
* cpphash.c (cpp_lookup): Likewise.
(cpp_hash_cleanup): Likewise.
* cpplib.c (parse_name): Add a prototype and make it static.
(null_underflow): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
(null_cleanup): Likewise for parameters `pbuf' and `pfile'.
(macro_cleanup): Likewise for parameter `pfile'.
(file_cleanup): Likewise.
* cpplib.h (cpp_reader_init, cpp_options_init, cpp_start_read,
cpp_read_check_assertion, skip_rest_of_line): Add prototypes.
* crtstuff.c (force_to_data, __CTOR_LIST__, force_to_data,
__DTOR_END__, __FRAME_END__): Mark with ATTRIBUTE_UNUSED.
* cse.c (cse_check_loop_start): Mark parameter `set' with
ATTRIBUTE_UNUSED.
* dbxout.c (flag_minimal_debug, have_used_extensions,
source_label_number): Move inside macro wrapper check against
defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO).
* dwarf2out.c (gen_entry_point_die): Hide prototype and definition.
* except.h (doing_eh): Provide prototype.
* expr.c: Move inclusion of expr.h to after insn-config.h.
* final.c: Include reload.h.
(shorten_branches): Cast the first argument of bzero to char *.
* fix-header.c (cpp_print_containing_files): Mark parameter
`pfile' with ATTRIBUTE_UNUSED.
(cpp_fatal): Likewise.
* flow.c (find_basic_blocks_1): Cast the first argument of bzero
to char *.
* genattrtab.c (make_length_attrs): Change the type of variable
`i' from int to size_t.
(zero_fn): Mark parameter `exp' with ATTRIBUTE_UNUSED.
(one_fn): Likewise.
* genextract.c (main): When generating insn-extract.c, mark
variable `junk' with ATTRIBUTE_UNUSED.
* gengenrtl.c (gencode): When generating genrtl.c, cast the first
argument of bzero to char*.
* integrate.c: Include toplev.h.
* libgcc2.c: Wrap `struct exception_table' and
`find_exception_handler' in macro DWARF2_UNWIND_INFO.
* objc/Make-lang.in (objc-act.o): Depend on toplev.h.
* objc/objc-act.c: Include toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(finish_protocol): Likewise for parameter `protocol'.
* output.h (declare_weak): Add prototype.
(decode_reg_name): Don't wrap with TREE_CODE macro.
(assemble_alias): Add prototype.
* regclass.c: Include output.h.
* reload.h (reloads_conflict): Add prototype.
* rtl.h (print_rtl_single, mark_elimiation, reg_class_subset_p,
output_func_start_profiler): Add prototypes.
* rtlanal.c (reg_set_p_1): Mark parameters `x' and `pat' with
ATTRIBUTE_UNUSED.
* scan-decls.c: Include scan.h.
* scan.h (recognized_function, recognized_extern): Add prototypes.
* stmt.c: Include output.h.
* toplev.c (error_for_asm, warning_for_asm): Remove prototypes.
(output_lang_identify): Hide prototype and definition.
(float_signal): Mark parameter `signo' with ATTRIBUTE_UNUSED.
(pipe_closed): Likewise.
* toplev.h (count_error, strip_off_ending, error_for_asm,
warning_for_asm): Add prototypes.
From-SVN: r19712
