* cse.c (flush_hash_table): New function.
(cse_insn): Flush the hash table when we encounter a volatile asm.
(cse_basic_block): Use flush_hash_table instead of doing it
inline.
* reload1.c (reload_cse_regs_1): Flush known register values if
we encounter a volatile asm.
From-SVN: r26304
* i386.h (PREFERRED_STACK_BOUNDARY): Define.
* i386.c (ix86_compute_frame_size): New function.
(ix86_prologue, ix86_epilogue): Use it.
* i386.h (INITIAL_ELIMINATION_OFFSET): Likewise.
* reload1.c: Provide default for PREFERRED_STACK_BOUNDARY.
From-SVN: r25909
* reload1.c (reload_as_needed): Set reload_is_output_reload /
reload_has_output_reload for auto_inc expressions that could be
reloaded. Call forget_old_reloads for REG_INC notes.
From-SVN: r25899
* cccp.c (create_definition): Cast to U_CHAR* when assigning to one.
* cppfiles.c (read_and_prescan): Likewise.
Start a #define in column 0.
* cpplib.c (cpp_define): Cast to U_CHAR* when assigning to one.
(cpp_push_buffer): Likewise for cpp_buffer*.
(do_include): Change the type of `fbeg' and `fend' to unsigned char*.
(do_endif): Cast to char* when assigning to one.
(do_assert): Likewise.
(do_unassert): Likewise.
(cpp_read_check_assertion): Change the type of `name' to U_CHAR*.
Don't do unnecessary cast to char* anymore.
* genrecog.c (make_insn_sequence): Cast to char** when assigning
to one. Cast the first argument of bzero to PTR.
* loop.c (strength_reduce): Remove unused variable `note'.
* reload1.c (new_insn_chain): Cast to struct insn_chain* when
assigning to one.
* rtl.c (copy_rtx): Use memcpy instead of bcopy.
From-SVN: r25860
* rtlanal.c (auto_inc_p): New function.
* rtl.h (auto_inc_p): Prototype it.
* reload1.c (add_auto_inc_notes): New function.
(reload): Strip REG_INC notes and call add_auto_inc_notes
for each insn to restore them correctly.
From-SVN: r25774
* reload1.c (reload_combine_note_store): Second argument is no
longer unused/ignored. Handle multi-register hard regs.
(move2add_note_store): Simplify.
From-SVN: r25124
* reload1.c (reload_combine_note_store): Be more careful with
STRICT_LOW_PART, ZERO_EXTRACT and SIGN_EXTRACT.
(move2add_note_store): Likewise.
From-SVN: r25055
* reload1.c (reload_cse_regs_1): Undo Jan 16 patch.
* reload.c (find_reusable_reload): New function, broken out of
push_reload. Add code to verify that none of the involved
outputs are subject to earlyclobbers.
(push_reload): Break out new function find_reusable_reload.
Delete "register" keyword for IN, OUT args.
From-SVN: r25010
* loop.c (insert_bct): Hide the definition of variables
`increment_direction', `compare_direction', `add_iteration' and
`loop_var_mode'.
* recog.c (mode_dependent_address_p): Mark parameter `addr' with
ATTRIBUTE_UNUSED. Mark label `win' with ATTRIBUTE_UNUSED_LABEL.
(mode_independent_operand): Mark label `lose' with
ATTRIBUTE_UNUSED_LABEL.
* regclass.c (n_occurrences): Remove prototype and definition.
* reload.c (find_reloads_address_1): Mark variable `tem' with
ATTRIBUTE_UNUSED.
* reload1.c (reload): Cast the first two arguments of `bcopy' to PTR.
* sbitmap.c (sbitmap_copy): Likewise.
* scan-decls.c (scan_decls): Hide label `handle_comma'.
* toplev.c (output_lang_identify): Mark prototype with
ATTRIBUTE_UNUSED.
* tree.c (make_node): Cast the first argument of `bzero' to PTR.
(make_tree_vec): Likewise.
(build1): Likewise.
* varasm.c (assemble_static_space): Mark variable `tem' with
ATTRIBUTE_UNUSED.
From-SVN: r24740
* reload1.c (reload_as_needed): Verify that the insn satisfies its
constraints after replacing a register address with an autoincrement
address for reload inheritance purposes.
From-SVN: r24449
* 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
Wed Dec 23 00:10:01 1998 Jeffrey A Law (law@cygnus.com)
* toplev.c (rest_of_compilation): Do not set reload_completed.
* reload1.c (reload): Set reload_completed before calling
cleanup_subreg_operands.
From-SVN: r24400
* reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
to determine if a register is live at a jump destination.
Everything is dead at a BARRIER.
From-SVN: r24258
* reload1.c (reload_combine, reload_combine_note_store):
Make USE_RUID always valid.
(reload_combine): Check if BASE is clobbered too early.
From-SVN: r24216
* reload1.c (reload): Do not set reload_completed or split insns
here. Instead...
* toplev.c (rest_of_compilation): Set reload_completed after
reload returns. Split insns after reload_cse has run.
From-SVN: r24037
* local-alloc.c (function_invariant_p): New function.
(update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
to decide if an equivalence should be recorded.
* reload1.c (num_eliminable_invariants): New static variable.
(reload): Set it. Use function_invariant_p instead of CONSTANT_P
to decide if an equivalence should be recorded.
Unshare PLUS.
(calculate_needs_all_insns): Skip insns that only set an equivalence.
Take num_eliminable_invariants into account when deciding
if register elimination should be done.
(reload_as_needed): Take num_eliminable_invariants into account
when deciding if register elimination should be done.
(eliminate_regs): Handle non-constant reg_equiv_constant.
* rtl.h (function_invariant_p): Declare.
From-SVN: r24026
* toplev.c (no_new_pseudos): Define.
(rest_of_compilation): Set no_new_pseudos as needed.
* emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
if no_new_pseudos is set.
* rtl.h (no_new_pseudos): Declare it.
* reload1.c (reload): Update comments.
* md.texi: Corresponding changes.
* reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
(choose_reload_regs): Rename it here as well. When computing it,
also merge in used hardregs.
From-SVN: r23855
* reload1.c (reload_reg_free_for_value_p): When considered reload
has an output, matching inputs are not sufficient to avoid conflict.
From-SVN: r23687
* reload1.c (reload_reg_free_before_p): Delete.
Changed all callers to use reload_reg_free_for_value_p instead.
(reload_reg_free_for_value_p): Handle more reload types.
A RELOAD_FOR_INPUT doesn't conflict with its
RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
Add special case for OUT == const0_rtx.
Added ignore_address_reloads argument. Changed all callers.
From-SVN: r23675
* reload1.c (reload): Handle equivalences set up in multiple places.
* local-alloc.c (reg_equiv_init_insns): New variable.
(no_equiv): New function.
(update_equiv_regs): Handle equivalences set up in multiple places.
Don't ignore an insn just because its destination is likely to be
spilled.
From-SVN: r23610
* reload1.c (delete_output_reload_insn): If a pseudo is set multiple
times, then it can not be completely replaced.
Fixes mis-compilation of wave5 in spec92.
From-SVN: r23581
* reload1.c (reload): If we can not perform a particular elimination
when we thought we could earlier, then we must always iterate through
the loop at least one more time.
x86 should bootstrap with -O9 -fomit-frame-pointer again.
From-SVN: r23552
* reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
previous insn to store directly into our reload register, make sure
that if the source of the previous insn is a reload register, its
spill_reg_store and spill_reg_stored_to values are cleared.
From-SVN: r23550
