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ChangeLog.0
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Wed Dec 21 02:46:34 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* Version 1.32 released.
* toplev.c (main): Vax pcc enforces goto-less programming
with fatal error.
* stmt.c (fixup_memory_subreg): New arg INSN says where to emit insns.
(walk_fixup_memory_subreg): Likewise. All callers changed.
Tue Dec 20 01:26:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* c-decl.c (start_function): Don't clear TREE_PERMANENT in fn decl.
Make the result decl a permanent node.
(finish_function): Don't clear DECL_RESULT in an inline function.
(duplicate_decls): Don't lose DECL_RESULT or DECL_SAVED_INSNS
or old decl, when defn is followed by redeclaration.
Likewise DECL_ARGUMENTS and DECL_RESULT_TYPE.
* stmt.c (expand_function_end): End any sequences left unterminated.
* cse.c (predecide_loop_entry): If "loop" has no label, do nothing.
* recog.c (asm_noperands): Now return -1 if not that kind of insn.
All callers changed.
* combine.c (check_asm_operands): Calling changes not quite trivial.
* final.c (final): Likewise.
* reload.c (find_reloads): Likewise.
* recog.c (asm_noperands): Other changes:
Loop computing # of SETs in a PARALLEL was off by 1.
Validate all elts of any PARALLEL, to block invalid combinations.
* ns32k.md (andsi3, andhi3): Make new CONST_INTs; don't clobber old.
* integrate.c (copy_rtx_and_substitute): When looking in `parm_map',
if our mode mismatches parm's mode, use change_address to extract part.
On BYTES_BIG_ENDIAN machines, adjust the offset.
Mon Dec 19 23:50:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* cexp.y ('/' and '%' ops): If divide by 0, print error, don't die.
Sun Dec 18 14:03:02 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* toplev.c (main): Avoid shadowing I in inner block.
* flow.c (propagate_block): The insn at the end of a libcall
may be dead, but the libcall might still be needed if the
hard return reg is used later. Detect this case.
(libcall_dead_p): New fn used to check that the libcall is dead.
* output-m68k.c, tm-m68k.h (standard_sun_fpa_constant_p): Fn renamed.
Sat Dec 17 13:23:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* stmt.c (expand_end_bindings): error_with_file_and_line => ..._decl.
* combine.o (try_combine): Accept combination making a valid
asm with operands.
(check_asm_operands): Recognize asm with operands that are valid.
* loop.c (strength_reduce): Don't accept a reg as a giv
if the reg was made by loop-optimize.
* stmt.c (balance_case_nodes): A list of 3 always splits in middle.
Fri Dec 16 17:22:07 1988 Tiemann (rms at sugar-bombs.ai.mit.edu)
* sparc.md (fetch from constant address): Split into two patterns,
one fixed point and one floating.
(store at constant address): Handle remembered hi-half differently.
Other bug fixes.
(fix_truncsfsi2): Use f1, not f0, as temp.
(fix_truncdfsi2): Don't clear CC_F1_IS_0.
* output-sparc.c (singlemove_string): Changed handling of case
where op1 is not memory and op0 has varying address.
(output_fp_move_double): Avoid reloading high half address
in the ldd and std cases with constant address.
(make_f0_contain_0): Handle f0 and f1 individually.
* tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): CONST is now illegitimate.
* rtl.c (note_stores): Pass entire SET rtx, not flag, as 2nd arg to FN.
* local-alloc.c (reg_is_set): New type for 2nd arg.
* Makefile: Comment out cc1plus, since not ready for release.
Thu Dec 15 16:39:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* local-alloc.c (reg_is_set): If a hard reg is clobbered, make it free
before and after the insn.
* stupid.c (stupid_mark_refs): Likewise.
* global-alloc.c (global_conflicts): Likewise.
Use note_stores to call mark_reg_{store,clobber}.
(mark_reg_store): Changed calling conventions
All work done on set/clobbered regs is now done here.
Ignore CLOBBERs.
(mark_reg_clobber): Similar fn, but ignore SETs and handle CLOBBERs.
(regs_set, n_regs_set): New static vars for comm. among the above.
* stmt.c (expand_asm_operands): call protect_from_queue on operands.
This requires preexpanding the outputs into a vector of rtx's.
* Makefile (install): cd to $(libdir) before ranlib.
* c-typeck.c (c_expand_asm_operands): emit_queue at the end.
* reload.c (find_reloads): Count # alternatives properly for
an asm insn, and check that all operands correspond.
* loop.c (verify_loop): Reject loops containg setjmps.
* cse.c (cse_main): Don't cse across a call to setjmp.
* expr.c (expand_expr): Permit any non0 DECL_RTL for a VAR_DECL.
* stmt.c (balance_case_nodes): Count ranges double when balancing.
Wed Dec 14 13:50:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* final.c (output_addr_const): Output just `-', not `+-'.
* make-cc1.com: Update filenames changed to `c-'.
* make-cccp.com: Pass needed -D options when compiling cccp.c.
Use /nomap when linking.
* loop.c (strength_reduce): Paraphrase setting NEW_REG, for Iris cc.
* output-m68k.c (output_move_const_single): %'s must be doubled twice.
* loop.c (record_giv): A giv can be replaceable if its uses are
all in the same basic block as its sole setting.
(last_use_this_basic_block): Subroutine to test that.
Tue Dec 13 13:41:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* expr.c (do_store_flag): Allow for COMPARISON to be a const_int.
* c-decl.c (pushdecl): Warn if type mismatch with another external decl
in a global scope.
* fixincludes: Fix typo in msg of deleting unchanged file.
* Makefile (insn-*): Use two-step rules with a separate time-stamp file
to avoid rerunning gen* unless md has changed again.
Mon Dec 12 13:32:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* i386.md (tstsf, tstdf, cmpsf, cmpdf): Use fnstsw, not fstsw. Faster.
* tm-vax.h (ASM_OUTPUT_REG_POP): Use correct asm syntax for pop insn.
* combine.c (subst): Handle (subreg (mem)) by making a changed mem.
This avoids producing any (subreg (mem))s except in the special
case they are supposed to be made here.
Also set undo_storage in a couple of cases that forgot to.
* reload.c (push_reload): When handling (SUBREG (MEM)) for IN,
if there is an OUT, make that a separate reload.
Return its number in `output_reloadnum'
(find_reloads): When pushing matching-reloads, note that the
two operands can have different reload-numbers.
* tm-3b1.h (ASM_OUTPUT_CASE_END): Test flag on TABLE, not its pattern.
(ASM_OUTPUT_CASE_LABEL): If /i flag set, don't output the dummy entry
since the fetcher-insn will not be off by 2 in this case.
* m68k.md (casesi_2 recognizer): For 3b1 syntax, compensate for that.
Sun Dec 11 12:51:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* genrecog.c (try_merge_2): No longer put all explicit decompositions
before all predicates. Patterns are now tested in the order written.
* vax.md: Move the push-or-move-address patterns to the end.
* m68k.md: Move load-address pattern to end.
Rearrange the special-case movsi patterns.
* ns32k.md: Move special load-reg-17 pattern before movsi.
* i386.md: Move the QI and DI push patterns to logical places.
This should not actually change anything.
* stmt.c: Add Andy Hitchins's binary-tree case statement code.
(struct case_stmt): case_list field is now a case_node chain.
Replace has_default field with default_label field.
(pushcase, pushcase_range): Build case_list in its new type,
and keep it sorted.
(expand_end_case): Use case_list in its new type.
Count a range of > 1 as two cases, when choosing strategy.
(group_case_nodes, balance_case_nodes): New fns, rearrange case_list.
(node_has_{low,high}_bound, node_is_bounded): New fns test
relationships of values of various case_list tree nodes.
(emit_jump_if_reachable): New fn.
(emit_case_nodes): Emit compares and jumps based on tree of case_list.
* cccp.c (finclude): Handle nonordinary files (stat doesn't give size).
* tm-3b1.h (PRINT_OPERAND_ADDRESS): Handle case of breg and no ireg.
Sat Dec 10 16:30:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* sparc.md (movstrsi): Separate define_expand and define_insn;
clobber some pseudos to get temp regs to use in the output.
* output-sparc.c (output_block_move): Use those temp regs,
guaranteed to be free.
* sparc.md (andcc patterns for bitfields from memory):
Test immed. arg for being in range.
(load DFmode constant): Use %m for output in one case.
* output-sparc.c (singlemove_string, output_move_double): Likewise.
* output-sparc.c (singlemove_string): New case for mem-to-mem move.
Fri Dec 9 11:42:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* stupid.c (stupid_mark_refs): for CLOBBER of a pseudo,
it is born just before this insn and dies just after.
* tm-vax.h (NOTICE_UPDATE_CC): For aob, sob insns, forget the cc's.
* basic-block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL): Move defn here.
* local-alloc.c: Use them.
* c-decl.c (store_parm_decls): Additional explanatory message
for some prototype mismatches.
* gnulib.c (SItype): New macro used instead of `int'
for SImode operands and values. Definition is `long int'.
Thu Dec 8 18:45:48 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* reload.c (operands_match_p): Move the label `slow' so that
it doesn't cause a REG and a SUBREG to be compared wrong.
* toplev.c (compile_file): Output a label `gcc_compiled.' for GDB.
If new macro ASM_IDENTIFY_GCC is defined, run that instead.
* tm-3b1.h (ASM_IDENTIFY_GCC): Define this as no-op.
Wed Dec 7 12:20:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* i386.md (adddf3): Typo: paren was in a constraint.
* c-decl.c (grokparms): Avoid duplicate msgs for incomplete type ptrs.
* gnulib.c: Rename all fns to start with `__'.
* optabs.c, expr.c: Rename all references.
* gnulib.c (__cmpdi2, __ucmpdi2): New fns.
* optabs.c (emit_cmp_insn): Use them.
* Makefile (stage*): Ignore errors on the main `mv' (for cc1plus).
Run ranlib if we have to copy gnulib.
* expmed.c (expand_divmod): Split `label' into several local vars.
* jump.c (jump_back_p): Do nothing unless cc's were set from integers.
Tue Dec 6 12:00:21 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* c-parse.y (extend_token_buffer): Use xrealloc, not realloc.
* integrate.c (output_inline_function): fix args of expand_function_end
(expand_inline_function): Add missing arg to expand_end_bindings.
* cse.c (cse_insn): Add missing MODE arg to canon_hash.
* reload1.c (reload_as_needed): Del. extra arg of choose_reload_targets
(reload): Add missing MODE arg to immediate_operand.
* expmed.c (expand_mult): Delete extra arg to expand_unop.
* c-typeck.c (default_conversion):
Add missing NOCONVERT arg to build_unary_op.
* c-decl.c (duplicate_decls, finish_struct): Add missing arg
KNOWN_ALIGMENT to layout_decl.
* stor-layout.c (layout_record): Likewise.
* varasm.c (assemble_variable): Likewise.
* dbxout.c (dbxout_init): Add missing LOCAL arg to dbxout_symbol.
* expr.c (clear_storage): Remove excess arg to emit_move_insn.
* loop.c (consec_sets_invariant_p): Add parens in hairy if-condition.
* fold-const.c (fold): Typo, missing `case'.
* cccp.c (main): Typo handling `-I-' option.
* tm-i386.h (NO_FUNCTION_CSE): Define this; cse is said to slow
things down with less than 7 calls.
* stmt.c (fixup_var_refs_insn): When scanning the reg-notes,
don't touch other insns they point at.
* expr.c (do_jump): Use invert_exp, not reverse_condition,
to invert sense of a jump.
* jump.c reverse_condition now static, invert_exp now global.
Mon Dec 5 10:51:39 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* tm-sun386.h (ASM_FILE_START): In the .file arg, exclude directories.
* stmt.c (expand_expr_stmt): If -W, warn if stmt has no side effect.
* cccp.c (monthnames): Capitalize each name.
* rtl.def: New code MATCH_OPERATOR.
* genconfig.c (walk_insn_part): Handle it.
* genextract.c (walk_rtx): Handle it.
* genpeep.c (match_rtx): Handle it.
* genrecog.c (add_to_sequence): Handle it.
* genemit.c (max_operand_1, gen_exp, gen_expand): Handle it.
* genoutput.c (scan_operands): Handle it.
(insn_n_alternatives): New array in the output.
(struct data): New slots n_alternatives and op_n_alternatives.
(scan_operands, gen_insn, gen_peephole):
Record op_n_alternatives for each operand.
(output_epilogue): Verify that all operands have same # of alternatives
Also output insn_n_alternatives.
* reload.c (find_reloads): use insn_n_alternatives to control
the loop over all alternatives.
An empty constraint or empty alternative in a constraint
is always satisfied.
* recog.c (constrain_operands): Likewise.
* c-decl.c (lang_decode_option): For each -f option, recognize a form
with `no-' and a form without, as contraries.
* toplev.c (main): Decode -f options using a table
so that each option automatically has a `no-' variant.
* combine.c (try_combine): Give up if I1 or I2 follows a compare insn.
Sun Dec 4 12:00:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* varasm.c (data_section): If flag_shared, use SHARED_SECTION_ASM_OP
if that is defined.
* cccp.c (include_default): Add /usr/local/include.
* Makefile (install): Install the makefile.
* varasm.c (assemble_external): New fn to declare an external.
(assemble_variable): Output nothing for externals.
* c-parse.y (primary => identifier): Call assemble_variable on 1st use.
* toplev.c (main): Print version info on stderr, not stdout.
* tm-*.h (TARGET_VERSION): Likewise.
* tm-isi68.h, tm-news800.h: Rename __HAVE_FPU__ to __HAVE_68881__.
* sparc.md (seq, etc): Entire page rewritten by Tiemann
to avoid incorrect use of PARALLEL.
* output-sparc.c (gen_scc_insn): Corresponding changes.
Sat Dec 3 00:03:19 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* gcc.c (do_spec_1): %P is an ANSIfied form of %p:
put __ at beg and end of each predefined macro name.
* tm-sun3.h (CPP_SPEC): Don't define -Dmc68010, etc., if -ansi.
* tm-sun2.h (CPP_SPEC): Likewise.
* c-decl.c (shadow_tag): Don't complain if declare a new tag
at top level, or if redeclare a tag.
* c-decl.c (grokparms): Warn if parm points to incomplete type.
(We already err if its own type is incomplete.)
* stmt.c (fixup_var_refs_insns): Fix any (SUBREG (MEM)) in REG_NOTES.
(walk_fixup_memory_subreg): New subroutine used for this.
* integrate.c (copy_rtx_and_substitute): Handle MEM refs to the middle
of a stack-parm--at least in the case of reading the parm.
* rtl.c (rtx_equal_p): REG_FUNCTION_VALUE_P is significant
only until end of reload pass.
* toplev.c (rest_of_compilation):
Control that by setting new var rtx_equal_function_value_matters.
* c-decl.c (init_decl_processing): Don't declare the builtins
that aren't really implemented.
* output-sparc.c (output_move_double): "in structure" implies
8-byte alignment only for DFmode, not for DImode.
* final.c (output_operand_lossage): Cleaner text for error msg.
No longer need to write text into .s file, now that linenum is correct.
* c-decl.c (pushdecl): -traditional stops warning
about "declared extern, later static".
* c-typeck.c (build_indirect_ref): Don't handle flag_volatile here.
* expr.c (expand_expr): Handle it here, in INDIRECT_REF case.
This prevents -fvolatile from causing additional warnings.
* output-sparc.c (output_load_address): Allow REG+REG for operands[3].
* m68k.md (movsi): If we output the label LIn,
set the RTL_INTEGRATED flag in the switch table's pattern.
* tm-3b1.h (ASM_OUTPUT_CASE_END): Define LD%n only if LI%n was output.
* i386.md (push-and-add pattern): Comment it out.
It's said to result in slower code.
* i386.md (tstqi, tsthi, tstsi): Output real `test' insn if op is reg.
* i386.md (push for DI): Allow `oiF' for 2nd operand.
Fri Dec 2 13:57:35 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* i386.md (movdi): Allow F constraint for 2nd operand.
* i386.md (push for QI): define pattern to push a QImode
which really uses pushw and therefore really pushes a halfword.
* tm-i386.h (PUSH_ROUNDING): Round up to multiple of 2.
* gcc.c (do_spec_1): Handle %e, which means report an error.
Use it to prohibit -pg with -fomit-frame-pointer.
* tree.h (DECL_RESULT_TYPE): New field in FUNCTION_DECL holds the type
of the widened returned value (not nec. the declared return type).
* c-decl.c (start_function): Set DECL_RESULT_TYPE.
* integrate.c (expan_inline_function): Use that, not DECL_RESULT.
Thu Dec 1 16:44:10 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* cse.c (fold_rtx): When reordering constant args, insist on
manifest constants; regs with known contents won't do.
* i386.md (mulsi3): Don't use rtx_equal_p to compare regs.
* expr.c (move_by_pieces_1): Don't call change_address
if address is autoinc, since that may not be memory_address_p.
Subroutine-macro add_offset deleted.
* optabs.c (bcc_gen_fctn, setcc_gen_fctn): Moved to this file.
(init_optabs): Init those tables here.
* expr.c (init_conditions): Not here.
* stmt.c (assign_stack_local): Make a list of all stack slots.
* emit-rtl.c (unshare_all_rtl): Unshare all the stack slots.
* final.c (final): Handle BARRIER with ASM_OUTPUT_ALIGN_CODE.
* tm-ns32k.h (ASM_OUTPUT_ALIGN_CODE): Align to 4-byte bdry.
?? * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Override: just 2-byte bdry.
* tm-m68k.h (PRINT_OPERAND): use new macros to print floats.
(ASM_OUTPUT_FLOAT_OPERAND): New macro.
(ASM_OUTPUT_DOUBLE_OPERAND): New macro.
* tm-sun3.h: Override those macros, to check for infinities.
Wed Nov 30 06:35:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* tm-ns32k.h (FUNCTION_{PRO,EPI}LOGUE): if no frame pointer,
do explicit push or pop insns.
* tm-genix.h (PRINT_OPERAND): Fix typo `file'.
Extedn decl for paren_base_reg_printed.
(MAIN_FUNCTION_PROLOGUE): Deleted.
(ASM_OUTPUT_EXTERNAL): Defined.
* c-parse.y (yyerror): Better error msg for unprintable char in token.
(primary => identifier): Set TREE_USED if implicit decl made.
* Makefile (cleanlinks): New target.
(INSTALL): New variable, has program used for installing files in sys.
* output-ns32k.c (print_operand_address): If addr is sum of 2 consts,
output ADDR first, then OFFSET.
* ns32k.md (addsi3): Allow adding const+reg with result in another reg.
* tm-seq386.h (FUNCTION_PROFILER): Provide overriding definition.
* tm-hp9k320.h: Alternate ASM_SPEC if using GAS.
Define STANDARD_STARTFILE_PREFIX if using GAS.
(FUNCTION_PROLOGUE): on 68020 for big stack frame use link.l.
* gcc.c (STANDARD_STARTFILE_PREFIX): New cust. macro replaces `/lib/'.
* va-sparc.h, va-spur.h: Prefix non-interface identifiers with `__'.
* optabs.c (init_optabs): Don't set up libcalls for ftrunc_optab
because (1) they aren't supported and (2) they are never used.
* gnulib.c (__builtin_saveregs): If not sparc, define the symbol anyway
to avoid a warning in ranlib.
Mon Nov 28 01:46:12 1988 Michael Tiemann (mdt at choctaw)
* c-parse.y (yylex): Typo, `=' for `==' making wide strings.
* sparc.md (various places): make sure that all patterns which store
can store using const0_rtx (i.e., make all operands to `st' %rx).
* output-sparc.c (various places): changed dispatches on SYMBOL_REF
to dispatches on CONSTANT_ADDRESS_P since we now recognize any CONST
(and not just SYMBOL_REFs). Don't recognize special case CONST for
output_block_move. Compiler doesn't have enough information to use
it.
* stmt.c (expand_fixup): If the control stack is nested within the
nesting stack, then no fixup is needed. Otherwise, compiler must
check for possible fixups between the current nesting stack and the
nesting stack that immediately contains the control stack.
* stmt.c (expand_function_start): functions which are nested use
DECL_CONTEXT. For these functions, test that their DECL_CONTEXT is
a LET_STMT node.
* tree.h: declare `build_offset_type'.
Sun Nov 27 10:34:53 1988 Richard Stallman (mdt at yahi)
* output-sparc.c (output_move_double):
Don't try to use ldd/std if OP1 is a constant.
* sparc.md (movdi): Allow immediate args moved into general regs.
* c-decl.c (grokparms): Reject incomplete parm types even if just
declarating, not defining. Change types to error_mark_node
in both the PARM_DECL and the list of types.
* dbxout.c (dbxout_type): It's not a bug if a RECORD_TYPE
has a typedef as its TYPE_NAME. That happens in C++.
* Make each `asm' with operands record its source file/line
with reg-notes. It doesn't work to emit a special note before the insn
because the insn can be moved by loop_optimize.
* stmt.c (expand_asm_operands): New args FILENAME, LINE.
Record them in the insn, in reg notes.
* c-typeck.c (c_expand_asm_operands): New args, passed along.
* c-parse.y: Pass those args.
(maybe_type_qual): Line #s for asm stmts emitted like all others.
* rtl.h (REG_ASM_FILE, REG_ASM_LINE): New kinds of reg notes.
* toplev.c (error_for_asm): Get the info from those notes.
* reload.c (find_reloads): Don't clear BADOP for a reg letter
if the alternative ultimately doesn't allow any regs.
* reload.c (find_reloads): If an `asm' insn gets an error,
change it to a USE to avoid duplicate error msgs or later trouble.
* reload.c (find_reloads_address): Reloading a constant address,
specify Pmode as the mode for push_reloads, in case of CONST_INT.
* expr.c (emit_push_insn): Fix calc. of space needed when PARTIAL > 0.
Both scalar case and BLKmode case needed fixing.
* sparc.md (load/store constant address):
Moving DF from mem to cpu regs, don't go via %f0.
Don't use std/ltd if alignment is wrong or uncertain.
Sun Nov 27 10:34:53 1988 Michael Tiemann (mdt at yahi)
* reload.c (push_reload): Allow VOIDmode for INMODE, OUTMODE;
default the mode from the operand values.
* sparc.md: remove patterns which generate annulled branch insns.
They are correct, but those insns confuse GDB.
* tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS):
Treat any constant address like a SYMBOL_REF.
* sparc.md: Check for CONSTANT_ADDRESS_P rather than SYMBOL_REF.
* sparc.md: Peepholes now accept SYMBOL_REF addresses.
The output routine can now split them properly even as delay insns.
* print-tree.c (dump): added entry for METHOD_TYPE and
METHOD_CALL_EXPR. Also added entry for WITH_CLEANUP_EXPR. Suggest
that we make first_rtl of WITH_CLEANUP_EXPR 2 instead of 1.
Sun Nov 27 00:15:33 1988 Michael Tiemann (mdt at yahi)
* print-tree.c (dump): added entry for OP_IDENTIFIER.
* tree.c (build_op_identifier): new function. Needed because
`build_nt' expects an "e" node, but OP_IDENTIFIER is an "x" node.
* store_layout.c (layout_record): use DECL_FIELD_CONTEXT instead of
DECL_CONTEXT.
* tree.h (DECL_FIELD_CONTEXT): new macro. Points to the type that a
FIELD_DECL is a member of. For C, this is just DECL_CONTEXT.
* tree.c (build_method_type): typo used "==" to assign basetype to
TYPE_METHOD_BASETYPE with predictably poor results.
Sat Nov 26 22:55:32 1988 Michael Tiemann (mdt at yahi)
* output-sparc.c (output_sized_memop): new function to output a load
or store insn based on the size of the operand loaded or stored.
(make_f0_contain_0): use info from condition codes to decide whether
the register %f0 needs to have 0 loaded from memory or not in order
to contain zero.
(gen_scc_insn): new function used by define_expands for
set-on-condition-code insns.
(output_delay_insn): now knows how to handle load and store
scheduling when the load or store operation takes two insns instead
of one. The rewrite is now understands is this:
sethi %hi(address),%g1 -> sethi %hi(address),%g1
ld/st [%g1+%lo(address)],%reg -> b target
b target -> ld/st [%g1+%lo(address)],%reg
nop -> ;; gone
* jump.c (reverse_condition): make this function publicly visible,
now needed in expr.c.
* output-sparc.c (reg_or_0_operand): new function, returns nonzero
if operand is const0_rtx or a register of specified mode.
(hardreg): deleted.
* expr.c, stmt.c: fixed random syntax errors.
* tree.c (build_method_type): now corresponds to defn in tree.def
expr.c (expand_call): removed code to get FUNCTION_TYPE from
METHOD_TYPE. This should probably be looked at harder.
* tree.def (METHOD_TYPE): Changed definition so that TREE_TYPE (m)
(where m is a METHOD_TYPE) is the type of the return value of the
method, not the FUNCTION_TYPE from which the METHOD_TYPE is derived.
* Makefile: Changed target of BINDIR from /usr/local to
/usr/local/bin.
Sat Nov 26 16:29:22 1988 Michael Tiemann (mdt at chickasaw)
* tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Allow any SYMBOL_REF.
(NOTICE_UPDATE_CC): Remember high half of %g1 as a "condition code"
to avoid reloading it if it does not change.
(NOTICE_UPDATE_CC): Test SET_SRC, not SET_DEST, for a CALL rtx.
(PRINT_OPERAND): New code-letter `m' says output operand as an address.
* toplev.c (flag_syntax_only): New flag variable.
* flags.h: Likewise.
* toplev.c (error_with_decl): Extra arg, passed to fprintf.
(warning_with_decl): Likewise.
* tree.c (build_offset_type): New function.
* tree.h (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
Uses in tree.c and... renamed.
* combine.c (SUBST_INT): New macro, for replacing an int.
(subst): Collapse nested SUBREGs even if SUBREG_WORDs are not 0.
* expr.c (bcc_gen_fctn, setcc_gen_fctn): new tables,
initialized in init_comparisons.
Used in expand_expr, do_jump, do_store_flag
instead of explicit construction of a jump.
* expr.c (save_noncopied_parts): New function.
* expr.c (expand_expr):
ARRAY_REF: Special case for array of constants.
WITH_CLEANUP_EXPR: Handle it.
INIT_EXPR: Case deleted.
MODIFY_EXPR: Use save_noncopied_parts.
* expr.c (expand_call): blkmode_parms_forced can be >0
even when no stack arg space otherwise needed.
Don't use a hard reg as a target if there are cleanups.
* stmt.c (struct block): New elt. outer_cleanups.
(struct case): New elt. num_ranges.
(struct fixup): Changed meaning of cleanup_list_list.
Changes in expand_fixup, fixup_gotos.
(expand_fixup): Detect some internal forward-jumps
that need no fixups--for speed.
(fixup_gotos): New arg THISBLOCK.
(expand_expr_stmt): Handle flag_syntax_only.
(use_variable): No longer static.
(use_variable_after): new fn.
(expand_end_bindings): handle cleanups like a stack level.
(expand_decl): Handle a cleanup with no decl.
(move_cleanups_up): Preserve relative order of cleanups.
(expand_anon_union_decl): New fn.
(pushcase): New fast clause if no ranges yet.
(pushcase_range): Turned on.
(expand_function_start): New temp var `fntype'.
Set TREE_USED for a parm we are ignoring.
(expand_function_end): Really use the `filename' arg.
Use use_variable_after for SAVE_EXPR regs.
* dbxout.c (dbxout_type): Handle OFFSET_TYPE.
* gnulib.c (__builtin_new, etc.): Support for C++.
* emit-rtl.c (next_insn, prev_insn): New fns.
Sat Nov 26 16:29:22 1988 Richard Stallman (mdt at chickasaw)
* tree.h (TREE_LANG_FLAG_[1234]): New attributes.
(TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
(TYPE_OFFSET_BASETYPE): New macro.
(NUM_TREE_CODE): New macro.
(TYPE_NONCOPIED_PARTS): new field in a type-node.
* varasm.c (make_decl_rtl): Split out from assemble_variable.
(assemble_variable): No longer creates the rtl.
No longer handles policy of whether to output tentative decl yet.
(output_constant_def): Don't lose if wasn't temp allocation
when this was called.
(output_constant): Handle REFERENCE_EXPR.
* Makefile (BISONFLAGS): new variable.
(prefix): New variable, used in bindir and libdir.
(C_OBJS, CPLUS_OBJS): New vars, split off from OBJS.
(LIBFUNCS): C++ support functions added.
(CPLUS_TREE_H): New variable.
(cc1plus): New target.
(lang_c, lang_cplus): Combines all targets for one language.
(gplus.info): New target.
(cplus-*.o): New targets.
(realclean): Handle new C++ files and recent renamings.
(install, TAGS): Likewise.
* print-tree.c (prtypeinfo): Handle TREE_LANG_FLAG_[1-4].
* tm-sparc.h (ASM_OUTPUT_DOUBLE): Special case for infinity.
(ASM_OUTPUT_FLOAT): Likewise.
* gcc.c: Don't define __GNU__.
For .cc files, pass -+ to cpp, and don't handle -ansi.
Use cc1plus as name of compiler for .cc files.
* stor-layout.c (layout_type): abort if given a LANG_TYPE node.
(layout_union): Complain if union has basetypes or static members.
(layout_record): Handle anonymous union members.
* tree.def (LANG_TYPE): New tree code for language-specific purposes.
(WITH_CLEANUP_EXPR): New tree code for expressions whose values
need to be cleaned up when they are deallocated.
(OP_IDENTIFIER): New tree code for certain C++ purposes.
* toplev.c (rest_of_decl_compilation): Call make_var_rtl
before assemble_variable.
Wed Nov 23 02:15:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* xm-sunos4.h: Rename included config files to xm-*.
* xm-*.h: Likewise.
* fixincludes: Avoid altering args to names other than CTRL
that end in ...CTRL.
If a file isn't actually changed, delete the copy.
Mon Nov 21 12:48:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* loop.c (move_movables): Never move a reg w/ # > old_max_reg.
(strength_reduce): For nonreplaceable giv, put insn to load it
after the insn that used to compute it, in case the latter
is the last of a libcall sequence.
* stmt.c (expand_function_end): If returning BLKmode, also copy
address where value is returned to the place that GDB will
expect to see it after the return.
* c-parse.y (readescape): Warn about hex constant out of range
for a target integer.
(yylex): Warn about escape out of range for non-wide char or string.
Use a buffer of ints to read a wide string.
Sat Nov 19 02:18:02 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu)
* Version 1.31 released.
* sparc.md: Change `K' to `I' in all constraints.
* loop.c (gen_iv_mult): Handle TARGET==0.
* c-decl.c (duplicate_decls): Undo last change.
* c-decl.c (pushdecl): Instead of that change,
save old-decl's file/line before calling duplicate_decls,
and pass them later to warning_with_file_and_line.
* toplev.c (warning_with_file_and_line): New fn.
Fri Nov 18 13:07:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* stmt.c (fixup_var_refs_1): (SUBREG (MEM)) was slipping through
in case where a SET was writing in the variable being fixed.
* recog.c (register_operand, nonmemory_operand, memory_operand):
Changes to handle new var reload_completed: 1 means that
(SUBREG (MEM)) now counts as a mem-ref, since alter_subreg
will make it one.
* toplev.c (rest_of_compilation): Set and clear reload_completed.
* sparc.md (call patterns): If TARGET_SUN_ASM, and address in reg,
output a jmpl rather than a call.
* tm-sun4os3.h: Like tm-sparc.h but turn on TARGET_SUN_ASM.
* reload.c (push_reloads): Reinstate handling of reg_equiv_constant.
Thu Nov 17 09:48:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* reload1.c (constraint_accepts_reg_p): Name changed from
constraint_all_regs_p; new arg is reg we are concerned with,
and condition tested takes some advantage of that reg.
* gcc.c (main): Rename var `error' to `error_count' for name conflict.
* emit-rtl.c (emit_note): Output line #s even if no debug info wanted.
(emit_line_note): New fn, does what emit_note did.
(emit_line_note_force): New name for emit_note_force.
* stmt.c, c-parse.y: Call emit_line_note instead of emit_note.
* c-parse.y (maybe_type_qual): Call emit_note instead of emit_line_note
Now we can find the line # of every `asm' from the RTL.
* toplev.c (error_for_asm): New fn, gets line # by searching for NOTE.
* reload.c (find_reloads): Use error_for_asm.
* reload1.c (choose_reload_targets): Likewise.
* final.c (output_operand_lossage): Likewise.
Variable this_is_asm_operands is now current insn if it's nonzero.
* loop.c (move_movables): When a reg is moved, update regno_first_uid
and regno_last_uid; say life span includes entire loop.
* Decrement THRESHOLD per reg moved, not per insn moved.
Wed Nov 16 08:41:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* gnulib.c (___builtin_saveregs): New fn, for sparc.
* tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't recognize
SYMBOL_REFs, except for the constants pool.
But do recognize REG+REG and SMALLINT+REG.
* sparc.md: New patterns for fetching and storing memory
whose address is symbolic and not "legitimate".
* sparc.md (movsi): Add `f' to op1 constraint.
New output clause for result in fp reg.
(Floating point fetch patterns): Output sethi insns.
(call_value, related patterns): value-register has `register_operand'.
* output-sparc.c (hardreg): New function.
(COMPATIBLE): Clause added for n_regs == 2.
(single_insn_src_p): Return 0 for MEM whose address is absolute.
* tm-genix.h (GO_IF_LEGITIMATE_ADDRESS subroutines):
Redefine, to exclude any possibility of SB-referencing addresses.
* loop.c (strength_reduce): Can't eliminate a biv if used before
start of the loop. Used before is same as used after, if contained
in another loop.
* recog.c (asm_noperands, decode_asm_operands):
Handle case of no outputs, but some clobbers.
* stmt.c (expand_asm_operands): Generate right stuff for that case.
* tm-sun3.h (CPP_SPEC): Don't define __HAVE_68881__ if using fpa.
Tue Nov 15 00:10:26 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* loop.c (gen_iv_mult): Arg OP0 may not be a constant.
Pay attention to return value of expand_mult.
(eliminate_biv): Call changed.
* output-m88k.c, output-sparc.c (output_move_double):
Fix typo `optype0' for `optype1'.
* c-decl.c (duplicate_decls): Don't alter file, line of old decl.
* c-parse.y (skip_white_space): Don't recognize comments; rely on cpp.
* rtl.c (rtx_equal_p): Handle vectors.
* loop.c (scan_loop): Change elts of n_times_set back to positive
for candidates that weren't moved, before doing strength reduction.
* ns32k.md (movdi, movdf): Use `&' constraint for first operand.
* reload1.c (reload): Initialize spill_indirect_ok here.
* config-sun4.h: Recognize `-static' switch.
* global-alloc.c (set_preference): Avoid using nonsense hard reg #s
that result from adding OFFSET.
* sdbout.c (sdbout_end_function): Line # in .ef should be relative.
* final.c (output_source_line): For SDB, don't output negative #s.
* tm-encore.h (ASM_OUTPUT_LOCAL): Don't ignore SIZE arg.
Mon Nov 14 11:03:16 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* reload.c: Don't declare refers_to_regno_p.
* gcc.c (main): Warn if any input files are for the linker
but the linker is not being run.
* jump.c (sets_cc0_p): Dumb bug fetching elts of a PARALLEL.
* local-alloc.c: qty_birth, qty_death elements are now -1, not 0,
when the value is not known.
* expmed.c (extract_bit_field): Bug computing xbitpos, xoffset
when changing units from bytes to words.
* loop.c: Rename `times_used' field in `struct movable' to `savings'.
(scan_loop): When scanning the consecutive sets, for each libcall,
increment `savings'--leave `consec'.
When making movable for (SET (REG) 0) which is part of zero-extension,
set `savings' to 1 initially, since only 1 insn will be moved.
And don't let any other reg force that insn.
Reduce initial THRESHOLDs.
(move_movables): Don't add `consec' into `savings'
since the initial `savings' was proportional to `consec'.
Decrement THRESHOLD by 3 (not 2) for each move done.
* reload1.c (choose_reload_targets): Strip subregs from OLD
before writing the output-reload move-insn.
* reload1.c (reload): counted_for_groups and counted_for_nongroups
are now file-scope. Update them both when spilling.
(new_spill_reg): No need for counted_for_nongroups as arg.
(choose_reload_targets): Don't use for a group
any spill regs for which counted_for_nongroups is set.
* dbxout.c (dbxout_symbol): Indirect-symbol case checked erroneously
for PARM_DECL.
Sun Nov 13 08:13:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* cse.c (fold_rtx): Don't alter MULT by -1 if arg mode != result mode.
* loop.c (move_movables): If moving a CALL_INSN, make a new CALL_INSN.
* emit-rtl.c (emit_call_insn_before): New fn.
* config-sun4.h (LINK_SPEC): Avoid shared libraries if -g.
* expr.c (store_one_arg): Stabilize ARG->stack so it doesn't use SP
before computing the arg value.
* combine.c (use_crosses_set_p): Moving a ref to stack ptr
is always forbidden if machine has push insns, since might cross one.
* vax.md (movqi): Avoid out-of-range immed ops in mcomb.
* expmed.c (extract_bit_field): Don't say `extzv' in the
clause for `extv'.
* emit-rtl.c (copy_rtx_if_shared): Even if a MEM can be shared,
unshare its address from everything outside that MEM.
* expr.c (expand_builtin): Fix omitted arg to `convert_to_mode'.
* expr.c (store_expr): In case where will not return TARGET
and must do type conversion, don't fail to store into TARGET.
* dbxout.c (FORCE_TEXT): New macro used before output `.stabs'
to go to the text section on targets that require it.
(DEBUG_SYMS_TEXT): Target macro which turns on that feature.
* reload1.c (reload): Index in spill_regs was wrong
when checking counted_for_groups.
(choose_reload_targets): When calling find_equiv_reg looking for
a reload reg, reject all spill regs, even those not in use now.
* tm-sun386.h, tm-sun386i.h, config-sun386i.h: New files.
* cccp.c (main): Don't die if no output file arg given.
* fixincludes: Tell `find' to find only ordinary files.
* config.gcc: If symlink fails, make a hard link.
Sat Nov 12 20:43:20 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* Makefile (gnulib): Use cp to make the temporary .c files;
less likely to fail than ln.
Sat Nov 5 12:46:39 1988 Randall Smith (randy at sugar-bombs.ai.mit.edu)
* tm-m68k.h (HARD_REGNO_MODE_OK): Disallowed d7:a0 as an allowable
pair of registers to hold a double value. This is correct for the
fpa but incorrect for the 68881. It was, however, simpler than
defining a new regclass.
Tue Oct 25 12:03:49 1988 Randall Smith (randy at gluteus.ai.mit.edu)
* m68k.md: Added some thoughts (comments) on best method to allow
68881 code with fpa code.
Thu Oct 13 14:19:17 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* Version 1.30 released.
* stupid.c (stupid_life_analysis): Init last_call_suid with
largest possible value, not 0.
Wed Oct 12 04:40:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
* output-i386.c (output_asm_insn_double_reg_op): Compensate for
assembler bug that interchanges fsub and fsubr.
* reload1.c (order_regs_for_reload): Undo 29 Sept change.
It breaks the 386.