* toplev.c (main): Call the front-end specific post_options
hook if one is given.
* toplev.h (struct_lang_hooks, lang_hooks): New.
* c-lang.c (c_post_options, lang_hooks): Implement lang_hooks
for the C front end.
* cp/decl2.c (cxx_post_options, lang_hooks): Implement
lang_hooks for the C++ front end.
* objc/objc-act.c (objc_post_options, lang_hooks): Implement
lang_hooks for the ObjC front end.
* f/com.c (lang_hooks): Hooks for the Fortran front end.
* java/lang.c (lang_hooks): Hooks for the Java front end.
From-SVN: r38757
* c-lex.c (init_c_lex): Request #define / #undef callbacks
for verbose DWARF[2] debugging.
(cb_define, cb_undef): The new callbacks.
* toplev.h (debug_define, debug_undef): Make const correct.
* toplev.c (debug_define, debug_undef): Similarly. Do not
perform the verbosity tests here anymore.
From-SVN: r38756
* reload.c (subst_reloads): Take INSN argument. When
replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
* reload.h (subst_reloads): Adjust prototype.
* reload1.c (reload_as_needed): Pass INSN to subst_reloads.
* jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
present in JUMP_INSNs and copy them to JUMP_LABEL.
* flow.c (find_label_refs, find_basic_blocks_1): Skip
JUMP_INSNs and insns with REG_LABELs that are followed by
JUMP_INSNs with the same REG_LABEL.
* sched-rgn.c (is_cfg_nonregular): Likewise.
* rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
note is available.
* unroll.c (unroll_loop): Look for REG_LABEL notes in
JUMP_INSNs too.
* rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.
From-SVN: r38755
* loop.c (scan_loop): Use xcalloc for the regs array.
(load_mems_and_recount_loop_regs_set): Zero the new memory
received from xrealloc.
From-SVN: r38752
2001-01-05 Benjamin Kosnik <bkoz@redhat.com>
Fix 27_io/filebuf_members.cc
* src/localename.cc (locale::_Impl::_Impl(const _Impl& __imp,
const string& __name, category __cat, size_t __refs): Set
_M_has_name with _M_name.
* include/bits/localefwd.h (locale::operator!=): Protect member
function call with this->.
* src/locale.cc (locale::operator==): Make fast checks first.
* include/bits/basic_ios.tcc (basic_ios::init): Simplify.
* include/bits/ios_base.h (_M_synced_with_stdio): Add data member
to ios_base::Init.
* src/ios.cc (ios_base::Init::Init): Initialize here.
(ios_base::sync_with_stdio): Set here.
2001-01-04 Loren J. Rittle <ljrittle@acm.org>
* config/c_io_stdio.cc (__basic_file<_CharT>::sys_open()): On
systems that support it, call dup() before fdopen().
From-SVN: r38742
* cpplib.h (struct cpp_reader): Add help_only field.
* cppinit.c (COMMAND_LINE_OPTIONS): Add OPT_version.
(cpp_handle_option): Set pfile->help_only if we see -h,
--help, -target-help, or --version. Print version string but
do not set help_only if we see -v or -version. Make text
printed by -v match that printed by (-)-version.
* cppmain.c (main): Exit after option parsing if
pfile->help_only is true.
* toplev.c (independent_decode_option): Call print_version,
then exit, if we see --version (but not -version).
(print_version): Split lengthy message into two lines.
From-SVN: r38733
* function.c (reorder_blocks): Make sure the flags are all reset
before using them to mark blocks, else a second invocation will
corrupt the block chain.
(reorder_blocks_0): New, resets the flags.
From-SVN: r38724
2001-01-05 Jeffrey Oldham <oldham@codesourcery.com>
* varasm.c (mark_constant_pool): Improve initial comments.
(mark_constants): Move marking of constants to mark_constant.
(mark_constant): New function to recursively mark all constants
referred to by a constant.
From-SVN: r38721
* config/avr/avr-protos.h (avr_peep2_scratch_safe): Prototype.
* config/avr/avr.c (avr_peep2_scratch_safe): New function.
* config/avr/avr.md (all peepholes that request a scratch register):
Call it, FAIL the peephole if not safe (in interrupt functions).
Co-Authored-By: Denis Chertykov <denisc@overta.ru>
From-SVN: r38718
* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
output operands. Use arm_hard_register_operand for operand 4.
(stmsi_postinc): Similarly.
(ldmsi): Use arm_hard_register_operand for opernand 2.
(stmsi): Similarly.
* arm.c (arm_hard_register_operand): New function.
* arm-protos.h (arm_hard_register_operand): Prototype it.
* arm.h (HARD_REGNO_RENAME_OK): Define.
From-SVN: r38712
* java/io/PipedInputStream: Rewrote to be simpler and more correct.
* java/io/PipedOutputStream: Updated to match new PipedInputStream.
* java/io/PipedReader: New implementation based on new
PipedInputStream.
* java/io/PipedWriter: Updated to match new PipedOutputStream.
From-SVN: r38708
* c-decl.c (finish_struct): Detect flexible array members
used in an inappropriate context.
* c-typeck.c (really_start_incremental_init): Special case
constructor_max_index for zero length arrays.
(pop_init_level): Allow initialization of flexible array
members. Deprecate initialization of zero length arrays.
Don't issue missing initializer warning for flexible array
members or zero length arrays.
(process_init_element): Don't dereference null DECL_SIZE.
* varasm.c (array_size_for_constructor): Return a HOST_WIDE_INT.
Don't abort for empty constructors. Use size_binop
(output_constructor): Add commentary regarding zero length
array futures. Abort if we try to initialize an array of
unspecified length with a non-empty constructor in the middle
of a structure.
* extend.texi (Zero Length): Update and clarify documentation
on static initialization.
From-SVN: r38705
Neil Booth
Alexandre Oliva
Anthony Green
Richard Henderson
Joseph Myers
J"orn Rennecke
Jeff Law
Bryce McKinlay
Michael Hayes
Benjamin Kosnik
John David Anglin
Mike Stump
Mike Stump
Richard Henderson
Nick Clifton
DJ Delorie
Zack Weinberg
Michael Meissner
Alexandre Oliva
Jeffrey Oldham
Catherine Moore
Phil Edwards
Marek Michalkiewicz
Mark Mitchell
Daniel Berlin
Nathan Sidwell
Bruce Korb
Richard Earnshaw
Jan Hubicka