Commit Graph

219 Commits

Author SHA1 Message Date
Iain Sandoe
d8ed14ce4e enable mdynamic-no-pic bootstrap for x86 Darwin
* configure.ac (*-*-darwin*): Use mh-darwin for all Darwin variants.
	* configure: Regenerate.
	* config/mh-ppc-darwin: Rename to mh-darwin.

gcc:

	* gcc/configure.ac: Filter -mdynamic-no-pic from CFLAGS when testing for
	plugin capabilities.
	* gcc/configure: Regenerate.

gcc/testsuite:

	* lib/plugin-support.exp (plugin-test-execute): Filter -mdynamic-no-pic from
	plugin build flags on Darwin targets.

From-SVN: r166302
2010-11-04 10:43:47 +00:00
Ralf Wildenhues
86dfbd58cf Fix unportable shell quoting.
/:
	PR bootstrap/44621
	* configure.ac: Fix unportable shell quoting.
	* configure: Regenerate.

config/:
	* po.m4 (AM_PO_SUBDIRS): Fix unportable shell quoting.

contrib/reghunt/:
	* bin/gcc-svn-ids: Fix unportable shell quoting.
	* date_based/reg_periodic: Likewise.
	* date_based/reg_search: Likewise.

intl/:
	PR bootstrap/44621
	* configure: Regenerate.

From-SVN: r164668
2010-09-27 20:19:41 +00:00
Kai Tietz
996b42ef6a ChangeLog config
2010-09-10  Jonathan Yong  <jon_y@users.sourceforge.net>

	* dfp.m4: Enable decimal float for i?86 cygwin
	and mingw, and for x86_64 mingw.

ChangeLog libgcc

2010-09-10  Kai Tietz  <kai.tietz@onevision.com>

       * configure: Regenerated.

ChangeLog libdecnumber

2010-09-10  Kai Tietz  <kai.tietz@onevision.com>

       * configure: Regenerated.


ChangeLog gcc

2010-09-10  Kai Tietz  <kai.tietz@onevision.com>

	* configure: Regenerated.
	* config.gcc: Add for x86_64 and i?86 mingw t-dfprule.

From-SVN: r164167
2010-09-10 13:39:49 +02:00
H.J. Lu
cc0ae0cacb Don't set enable_decimal_float to dpd if DFP is disabled.
config/

2010-09-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45524
	* dfp.m4: Don't set enable_decimal_float to dpd if DFP is
	disabled.  Set default_decimal_float.

gcc/

2010-09-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45524
	* configure.ac (enable_decimal_float): Set to
	$default_decimal_float.
	* configure: Regenerated.

libdecnumber/

2010-09-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45524
	* configure.ac (enable_decimal_float): Set to
	$default_decimal_float.
	* configure: Regenerated.

libgcc/

2010-09-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45524
	* configure: Regenerated.

From-SVN: r163921
2010-09-06 07:52:54 -07:00
Andreas Schwab
84f47d20bb dfp.m4: Quote argument of AC_MSG_WARN.
config/:
	* dfp.m4: Quote argument of AC_MSG_WARN.

gcc/:
	* configure.ac: Quote argument of AC_MSG_WARN.
	* configure: Regenerate.

libdecnumber/:
	* configure: Regenerate.

libgcc/:
	* configure: Regenerate.

From-SVN: r163909
2010-09-06 10:35:22 +00:00
Andreas Krebbel
3c39bca6bb configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
gcc/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    * Makefile.in: Add aclocal.m4 dependency to dfp.m4.
	    * configure: Regenerate.
	    * aclocal.m4: Regenerate.

config/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * dfp.m4: New file.

libdecnumber/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    * Makefile.in: Add aclocal.m4 dependency to dfp.m4.
	    * configure: Regenerate.
	    * aclocal.m4: Regenerate.

libgcc/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    Include dfp.m4.
	    * configure: Regenerate.

From-SVN: r163815
2010-09-03 13:14:14 +00:00
Andi Kleen
c961549127 bootstrap-lto.mk (STAGE2_CFLAGS, [...]): Change to -fwhopr=jobserver -fuse-linker-plugin -frandom-seed=1.
2010-09-01  Andi Kleen  <ak@linux.intel.com>

        * bootstrap-lto.mk (STAGE2_CFLAGS, STAGE3_CFLAGS): Change
        to -fwhopr=jobserver -fuse-linker-plugin -frandom-seed=1.

From-SVN: r163725
2010-09-01 11:47:41 +00:00
Ralf Wildenhues
75bc9e5e0d Fix misquoting in stdint.m4.
config/:
	PR target/45084
	* stdint.m4 (GCC_HEADER_STDINT): Use m4 quotes for arguments
	of AC_MSG_ERROR.

libdecnumber/:
	* configure: Regenerate.

libgfortran/:
	* configure: Regenerate.

libgomp/:
	* configure: Regenerate.

libstdc++-v3/:
	* configure: Regenerate.

From-SVN: r163441
2010-08-21 12:18:02 +00:00
Rainer Orth
1e0859a29e Missed in last commit.
From-SVN: r161701
2010-07-02 10:26:12 +00:00
Rainer Orth
c18dc5ccea gc++filt.m4: New file.
config:
	* gc++filt.m4: New file.

	contrib:
	* make_sunver.pl: New file.

	libstdc++v3:
	* acinclude.m4 (GLIBCXX_ENABLE_SYMVERS): Handle sun style.
	Require GCC_PROG_GNU_CXXFILT.
	(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT): Define
	unless targetting solaris2*.
	Include ../config/gc++filt.m4.
	* configure.host (i?86-*-solaris2*): Set abi_baseline_pair.
	(sparc-*-solaris2*): Likewise.
	* src/Makefile.am [ENABLE_SYMVERS_SUN] (version_dep, version_arg):
	New variables.
	(libstdc++-symbols.ver-sun): New target.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* Makefile.in: Likewise.
	* doc/Makefile.in: Likewise.
	* include/Makefile.in: Likewise.
	* libsupc++/Makefile.in: Likewise.
	* po/Makefile.in: Likewise.
	* python/Makefile.in: Likewise.
	* src/Makefile.in: Likewise.
	* src/atomic.cc: Only define/use _GLIBCXX_ASM_SYMVER if
	_GLIBCXX_HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT.
	* src/compatibility.cc: Likewise.
	* testsuite/Makefile.am (baseline_subdir): Define.
	(baseline_symbols): Use it.
	(new-abi-baseline): Likewise.
	* testsuite/Makefile.in: Regenerate.

	* config/abi/pre/gnu.ver (GLIBCXX_3.4.5): Enclose duplicates in
	#ifdef HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT.
	(GLIBCXX_3.4.6): Likewise.

	* doc/xml/manual/configure.xml (--enable-symvers): Document sun
	style.

	* doc/xml/manual/abi.xml: Fix grammar.
	(Symbol versioning on the libstdc++.so binary): Fix mapfile path.
	(Incremental bumping of a library pre-defined macro): Fix
	c++config path.
	(Incremental bumping of a library pre-defined macro,
	_GLIBCPP_VERSION): Likewise.
	(Matching each specific C++ compiler release to a specific set of
	C++ include files): Fix acinclude.m4 path.
	(Prerequisites): Allow for Sun linker on Solaris 2.5+.
	Use proper link to Configuring.
	Fix acinclude.m4 path.
	(Checking Active): Allow for additional symbol versioning styles.
	Provide Solaris 2 example with pvs -r.
	(Bibliography): Update Linker and Libraries Guide, C++ Migration
	Guide entries.

	gcc:
	* doc/install.texi (Prerequisites): Document Perl requirement on
	Solaris 2.
	(Specific, *-*-solaris2*): Document GNU c++filt requirement.

From-SVN: r161696
2010-07-02 10:05:49 +00:00
Alexandre Oliva
339325b303 compare-debug: Drop LTO sections.
contrib/ChangeLog:
* compare-debug: Drop LTO sections.
config/ChangeLog:
* bootstrap-lto.mk: New.
gcc/ChangeLog:
* doc/install.texi: Document bootstrap-lto.

From-SVN: r161061
2010-06-21 00:23:06 +00:00
Paolo Bonzini
0c179631b2 override.m4: Remove obsolete (<2.64) definitions.
2010-06-10  Paolo Bonzini  <bonzini@gnu.org>

	* override.m4: Remove obsolete (<2.64) definitions.

From-SVN: r160558
2010-06-10 16:09:23 +00:00
Iain Sandoe
dbd34b899f re PR bootstrap/43170 (gcc 4.5 20100218 bootstrap compare fails on os x 10.6)
config:
	PR bootstrap/43170
	* tls.m4 (GCC_CHECK_TLS): Add volatile qualifier to the test 
	references.  Move the main () test reference ahead of 
	pthread_create().  Add a comment to explain the requirements
	of the test.
libgomp:
	PR bootstrap/43170
	* configure: Regenerate.
libjava:
	PR bootstrap/43170
	* configure: Regenerate.
libmudflap:
	PR bootstrap/43170
	* configure: Regenerate.
libstdc++-v3:
	PR bootstrap/43170
	* configure: Regenerate.

From-SVN: r160457
2010-06-09 09:27:04 +00:00
Joern Rennecke
765a03052d Import AC_CHECK_DECL for C++ fixes from git Autoconf.
config/:
	PR bootstrap/42798
	* override.m4 (_AC_CHECK_DECL_BODY, _AC_CHECK_DECLS): Import
	definitions from git Autoconf.

Co-Authored-By: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

From-SVN: r160210
2010-06-03 06:32:27 +00:00
Steve Ellcey
3591b8e2a0 configure: Regenerate after change to elf.m4.
2010-04-13  Steve Ellcey  <sje@cup.hp.com>

	* configure: Regenerate after change to elf.m4.

In config subdir:

2010-04-13  Steve Ellcey  <sje@cup.hp.com>

	* elf.m4: Add hppa[12]*-*-hpux* to list of non-elf platforms.

From-SVN: r158285
2010-04-13 22:54:07 +00:00
Kai Tietz
d85b51449b mh-mingw: Revert accidentally checking r156315.
2010-03-23  Kai Tietz  <kai.tietz@onevision.com>

        * mh-mingw: Revert accidentally checking r156315.

From-SVN: r157669
2010-03-23 15:48:08 +01:00
Kai Tietz
b4394ebd56 Fix unnamed extension for ISO-C.
From-SVN: r156315
2010-01-28 12:26:01 +01:00
Rainer Orth
b9497ab5ed stdint.m4 (GCC_HEADER_STDINT): Don't typedef uint8_t etc.
config:
	* stdint.m4 (GCC_HEADER_STDINT): Don't typedef uint8_t etc. if
	corresponding macros already exist.

	libdecnumber:
	* configure: Regenerate.

	libgfortran:
	* configure: Regenerate.

	libgomp:
	* configure: Regenerate.

	libstdc++-v3:
	* configure: Regenerate.

From-SVN: r155648
2010-01-05 14:02:37 +00:00
Richard Guenther
7413962d04 re PR bootstrap/41529 (LTO configuration should detect if the target is ELF)
2010-01-02  Richard Guenther  <rguenther@suse.de>

	PR lto/41529
	* configure.ac: Include config/elf.m4.  Disable LTO if not
	builting for an elf target.
	* configure: Regenerate.

	config/
	* elf.m4: New file.

From-SVN: r155565
2010-01-02 14:13:37 +00:00
Joseph Myers
1feb57517d largefile.m4 (ACX_LARGEFILE): Require AC_CANONICAL_HOST and AC_CANONICAL_TARGET.
* largefile.m4 (ACX_LARGEFILE): Require AC_CANONICAL_HOST and
	AC_CANONICAL_TARGET.

From-SVN: r154830
2009-11-30 16:38:14 +00:00
Joel Brobecker
678ff8235a * zlib.m4: New file.
From-SVN: r154521
2009-11-24 22:40:46 +00:00
Jan Kratochvil
01b0b881ec * largefile.m4 (ACX_LARGEFILE): Call AC_PLUGINS.
From-SVN: r154055
2009-11-09 23:17:54 +00:00
Jan Kratochvil
d3b31d8b01 largefile.m4: New file.
* largefile.m4: New file.

Co-Authored-By: Joel Brobecker <brobecker@adacore.com>
Co-Authored-By: Paolo Bonzini <bonzini@gnu.org>

From-SVN: r153987
2009-11-07 01:59:54 +00:00
Rainer Orth
e25a8c8216 acx.m4 (ACX_CHECK_CYGWIN_CAT_WORKS): Use = with test.
config:
	* acx.m4 (ACX_CHECK_CYGWIN_CAT_WORKS): Use = with test.

From-SVN: r153493
2009-10-23 10:03:47 +00:00
Paolo Bonzini
c13e029be4 stdint.m4 (GCC_HEADER_STDINT): Revert changes to this macro in the previous two patches.
config:
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* stdint.m4 (GCC_HEADER_STDINT): Revert changes to this macro in
	the previous two patches.

libgfortran:
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* configure: Regenerate.

libdecnumber:
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* configure: Regenerate.

From-SVN: r151574
2009-09-09 19:42:21 +00:00
Paolo Bonzini
d72a3ac17b stdint.m4: Store temporary file in $tmp/_GCC_STDINT_H.
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* stdint.m4: Store temporary file in $tmp/_GCC_STDINT_H.
	Eliminate now pointless comments.

libdecnumber:
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* configure: Regenerate.

libgfortran:
2009-09-09  Paolo Bonzini  <bonzini@gnu.org>

	* configure: Regenerate.

From-SVN: r151567
2009-09-09 16:51:14 +00:00
Kai Tietz
7c2a2dbf50 [multiple changes]
2009-09-08  Paolo Bonzini  <bonzini@gnu.org>

	* stdint.m4: Rewrite by using autoconf 2.64 features.

2009-09-08  Kai Tietz  <kai.tietz@onevision.com>

	* configure.ac (GCC_STDINT_TYPES): Initialize intptr_t,
	uintptr_t, HAVE_INTTYPES_H, HAVE_STDINT_H, HAVE_UINTPTR_T,
	and HAVE_INTPTR_T.
	* configure: Regenerated.
	* config.in: Regenerated
	* system.h (stdint.h): Add include.
	(inttypes.h): Likewise.
	* Makefile.in (aclocal): Add config/stdint.m4.
	* aclocal.m4: Regenerated.

From-SVN: r151514
2009-09-08 17:21:07 +02:00
Alexandre Oliva
9a2e0bd181 Move misplaced contrib/ChangeLog entry to config/.
From-SVN: r151392
2009-09-03 20:11:24 +00:00
Alexandre Oliva
e12c409449 configure.ac (--with-build-config): New.
ChangeLog:
* configure.ac (--with-build-config): New.  Set BUILD_CONFIG.
Default to bootstrap-debug only if compare-debug works.
* configure: Rebuilt.
* Makefile.tpl: Make BUILD_CONFIG configure-configurable.
* Makefile.in: Rebuilt.
contrib/ChangeLog:
* bootstrap-debug-big.mk (STAGE2_CFLAGS): Drop -gtoggle.
* bootstrap-debug-lean.mk: Update comments.
(STAGE2_CFLAGS): Likewise.
(do-compare): Don't override.
gcc/ChangeLog:
* doc/invoke.texi (BUILD_CONFIG): Document --with-build-config.
(bootstrap-debug): Explain conditions in which it becomes default.
(bootstrap-debug-big): Rather than duplicate bootstrap-debug,
make it add to it.

From-SVN: r151367
2009-09-03 05:55:57 +00:00
Alexandre Oliva
b5b8b0ac64 invoke.texi (-fvar-tracking-assignments): New.
gcc/ChangeLog:
* doc/invoke.texi (-fvar-tracking-assignments): New.
(-fvar-tracking-assignments-toggle): New.
(-fdump-final-insns=file): Mark filename as optional.
(--param min-nondebug-insn-uid): New.
(-gdwarf-@{version}): Mention version 4.
* opts.c (common_handle_option): Accept it.
* tree-vrp.c (find_assert_locations_1): Skip debug stmts.
* regrename.c (regrename_optimize): Drop last.  Don't count debug
insns as uses.  Don't reject change because of debug insn.
(do_replace): Reject DEBUG_INSN as chain starter.  Take base_regno
from the chain starter, and check for inexact matches in
DEBUG_INSNS.
(scan_rtx_reg): Accept inexact matches in DEBUG_INSNs.
(build_def_use): Simplify and fix the marking of DEBUG_INSNs.
* sched-ebb.c (schedule_ebbs): Skip boundary debug insns.
* fwprop.c (forward_propagate_and_simplify): ...into debug insns.
* doc/gimple.texi (is_gimple_debug): New.
(gimple_debug_bind_p): New.
(is_gimple_call, gimple_assign_cast_p): End sentence with period.
* doc/install.texi (bootstrap-debug): More details.
(bootstrap-debug-big, bootstrap-debug-lean): Document.
(bootstrap-debug-lib): More details.
(bootstrap-debug-ckovw): Update.
(bootstrap-time): New.
* tree-into-ssa.c (mark_def_sites): Skip debug stmts.
(insert_phi_nodes_for): Insert debug stmts.
(rewrite_stmt): Take iterator.  Insert debug stmts.
(rewrite_enter_block): Adjust.
(maybe_replace_use_in_debug_stmt): New.
(rewrite_update_stmt): Use it.
(mark_use_interesting): Return early for debug stmts.
* tree-ssa-loop-im.c (rewrite_bittest): Propagate DEFs into debug
stmts before replacing stmt.
(move_computations_stmt): Likewise.
* ira-conflicts.c (add_copies): Skip debug insns.
* regstat.c (regstat_init_n_sets_and_refs): Discount debug insns.
(regstat_bb_compute_ri): Skip debug insns.
* tree-ssa-threadupdate.c (redirection_block_p): Skip debug stmts.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt,
check_loop_closed_ssa_stmt): Skip debug stmts.
* tree-tailcall.c (find_tail_calls): Likewise.
* tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Likewise.
* tree.h (MAY_HAVE_DEBUG_STMTS): New.
(build_var_debug_value_stat): Declare.
(build_var_debug_value): Define.
(target_for_debug_bind): Declare.
* reload.c (find_equiv_reg): Skip debug insns.
* rtlanal.c (reg_used_between_p): Skip debug insns.
(side_effects_p): Likewise.
(canonicalize_condition): Likewise.
* ddg.c (create_ddg_dep_from_intra_loop_link): Check that non-debug
insns never depend on debug insns.
(create_ddg_dep_no_link): Likewise.
(add_cross_iteration_register_deps): Use ANTI_DEP for debug insns.
Don't add inter-loop dependencies for debug insns.
(build_intra_loop_deps): Likewise.
(create_ddg): Count debug insns.
* ddg.h (struct ddg::num_debug): New.
(num_backargs): Pair up with previous int field.
* diagnostic.c (diagnostic_report_diagnostic): Skip notes on
-fcompare-debug-second.
* final.c (get_attr_length_1): Skip debug insns.
(rest_of_clean-state): Don't dump CFA_RESTORE_STATE.
* gcc.c (invoke_as): Call compare-debug-dump-opt.
(driver_self_specs): Map -fdump-final-insns to
-fdump-final-insns=..
(get_local_tick): New.
(compare_debug_dump_opt_spec_function): Test for . argument and
compute output name.  Compute temp output spec without flag name.
Compute -frandom-seed.
(OPT): Undef after use.
* cfgloopanal.c (num_loop_insns): Skip debug insns.
(average_num_loop_insns): Likewise.
* params.h (MIN_NONDEBUG_INSN_UID): New.
* gimple.def (GIMPLE_DEBUG): New.
* ipa-reference.c (scan_stmt_for_static_refs): Skip debug stmts.
* auto-inc-dec.c (merge_in_block): Skip debug insns.
(merge_in_block): Fix whitespace.
* toplev.c (flag_var_tracking): Update comment.
(flag_var_tracking_assignments): New.
(flag_var_tracking_assignments_toggle): New.
(process_options): Don't open final insns dump file if we're not
going to write to it.  Compute defaults for var_tracking.
* df-scan.c (df_insn_rescan_debug_internal): New.
(df_uses_record): Handle debug insns.
* haifa-sched.c (ready): Initialize n_debug.
(contributes_to_priority): Skip debug insns.
(dep_list_size): New.
(priority): Use it.
(rank_for_schedule): Likewise.  Schedule debug insns as soon as
they're ready.  Disregard previous debug insns to make decisions.
(queue_insn): Never queue debug insns.
(ready_add, ready_remove_first, ready_remove): Count debug insns.
(schedule_insn): Don't reject debug insns because of issue rate.
(get_ebb_head_tail, no_real_insns_p): Skip boundary debug insns.
(queue_to_ready): Skip and discount debug insns.
(choose_ready): Let debug insns through.
(schedule_block): Check boundary debug insns.  Discount debug
insns, schedule them early.  Adjust whitespace.
(set_priorities): Check for boundary debug insns.
(add_jump_dependencies): Use dep_list_size.
(prev_non_location_insn): New.
(check_cfg): Use it.
* tree-ssa-loop-ivopts.c (find-interesting_users): Skip debug
stmts.
(remove_unused_ivs): Reset debug stmts.
* modulo-sched.c (const_iteration_count): Skip debug insns.
(res_MII): Discount debug insns.
(loop_single_full_bb_p): Skip debug insns.
(sms_schedule): Likewise.
(sms_schedule_by_order): Likewise.
(ps_has_conflicts): Likewise.
* caller-save.c (refmarker_fn): New.
(save_call_clobbered_regs): Replace regs with saved mem in
debug insns.
(mark_referenced_regs): Take pointer, mark and arg.  Adjust.
Call refmarker_fn mark for hardregnos.
(mark_reg_as_referenced): New.
(replace_reg_with_saved_mem): New.
* ipa-pure-const.c (check_stmt): Skip debug stmts.
* cse.c (cse_insn): Canonicalize debug insns.  Skip them when
searching back.
(cse_extended_basic_block): Skip debug insns.
(count_reg_usage): Likewise.
(is_dead_reg): New, split out of...
(set_live_p): ... here.
(insn_live_p): Use it for debug insns.
* tree-stdarg.c (check_all_va_list_escapes): Skip debug stmts.
(execute_optimize_stdarg): Likewise.
* tree-ssa-dom.c (propagate_rhs_into_lhs): Likewise.
* tree-ssa-propagate.c (substitute_and_fold): Don't regard
changes in debug stmts as changes.
* sel-sched.c (moving_insn_creates_bookkeeping_block_p): New.
(moveup_expr): Don't move across debug insns.  Don't move
debug insn if it would create a bookkeeping block.
(moveup_expr_cached): Don't use cache for debug insns that
are heads of blocks.
(compute_av_set_inside_bb): Skip debug insns.
(sel_rank_for_schedule): Schedule debug insns first.  Remove
dead code.
(block_valid_for_bookkeeping_p); Support lax searches.
(create_block_for_bookkeeping): Adjust block numbers when
encountering debug-only blocks.
(find_place_for_bookkeeping): Deal with debug-only blocks.
(generate_bookkeeping_insn): Accept no place to insert.
(remove_temp_moveop_nops): New argument full_tidying.
(prepare_place_to_insert): Deal with debug insns.
(advance_state_on_fence): Debug insns don't start cycles.
(update_boundaries): Take fence as argument.  Deal with
debug insns.
(schedule_expr_on_boundary): No full_tidying on debug insns.
(fill_insns): Deal with debug insns.
(track_scheduled_insns_and_blocks): Don't count debug insns.
(need_nop_to_preserve_insn_bb): New, split out of...
(remove_insn_from_stream): ... this.
(fur_orig_expr_not_found): Skip debug insns.
* rtl.def (VALUE): Move up.
(DEBUG_INSN): New.
* tree-ssa-sink.c (all_immediate_uses_same_place): Skip debug
stmts.
(nearest_common_dominator_of_uses): Take debug_stmts argument.
Set it if debug stmts are found.
(statement_sink_location): Skip debug stmts.  Propagate
moving defs into debug stmts.
* ifcvt.c (first_active_insn): Skip debug insns.
(last_active_insns): Likewise.
(cond_exec_process_insns): Likewise.
(noce_process_if_block): Likewise.
(check_cond_move_block): Likewise.
(cond_move_convert_if_block): Likewise.
(block_jumps_and_fallthru_p): Likewise.
(dead_or_predicable): Likewise.
* dwarf2out.c (debug_str_hash_forced): New.
(find_AT_string): Add comment.
(gen_label_for_indirect_string): New.
(get_debug_string_label): New.
(AT_string_form): Use it.
(mem_loc_descriptor): Handle non-TLS symbols.  Handle MINUS , DIV,
MOD, AND, IOR, XOR, NOT, ABS, NEG, and CONST_STRING.  Accept but
discard COMPARE, IF_THEN_ELSE, ROTATE, ROTATERT, TRUNCATE and
several operations that cannot be represented with DWARF opcodes.
(loc_descriptor): Ignore SIGN_EXTEND and ZERO_EXTEND.  Require
dwarf_version 4 for DW_OP_implicit_value and DW_OP_stack_value.
(dwarf2out_var_location): Take during-call mark into account.
(output_indirect_string): Update comment.  Output if there are
label and references.
(prune_indirect_string): New.
(prune_unused_types): Call it if debug_str_hash_forced.
More in dwarf2out.c, from Jakub Jelinek <jakub@redhat.com>:
(dw_long_long_const): Remove.
(struct dw_val_struct): Change val_long_long type to rtx.
(print_die, attr_checksum, same_dw_val_p, loc_descriptor): Adjust for
val_long_long change to CONST_DOUBLE rtx from a long hi/lo pair.
(output_die): Likewise.  Use HOST_BITS_PER_WIDE_INT size of each
component instead of HOST_BITS_PER_LONG.
(output_loc_operands): Likewise.   For const8* assert
HOST_BITS_PER_WIDE_INT rather than HOST_BITS_PER_LONG is >= 64.
(output_loc_operands_raw): For const8* assert HOST_BITS_PER_WIDE_INT
rather than HOST_BITS_PER_LONG is >= 64.
(add_AT_long_long): Remove val_hi and val_lo arguments, add
val_const_double.
(size_of_die): Use HOST_BITS_PER_WIDE_INT size multiplier instead of
HOST_BITS_PER_LONG for dw_val_class_long_long.
(add_const_value_attribute): Adjust add_AT_long_long caller.  Don't
handle TLS SYMBOL_REFs.  If CONST wraps a constant, tail recurse.
(dwarf_stack_op_name): Handle DW_OP_implicit_value and
DW_OP_stack_value.
(size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
Handle DW_OP_implicit_value.
(extract_int): Move prototype earlier.
(mem_loc_descriptor): For SUBREG punt if inner
mode size is wider than DWARF2_ADDR_SIZE.  Handle SIGN_EXTEND
and ZERO_EXTEND by DW_OP_shl and DW_OP_shr{a,}.  Handle
EQ, NE, GT, GE, LT, LE, GTU, GEU, LTU, LEU, SMIN, SMAX, UMIN,
UMAX, SIGN_EXTRACT, ZERO_EXTRACT.
(loc_descriptor): Compare mode size with DWARF2_ADDR_SIZE
instead of Pmode size.
(loc_descriptor): Add MODE argument.  Handle CONST_INT, CONST_DOUBLE,
CONST_VECTOR, CONST, LABEL_REF and SYMBOL_REF if mode != VOIDmode,
attempt to handle other expressions.  Don't handle TLS SYMBOL_REFs.
(concat_loc_descriptor, concatn_loc_descriptor,
loc_descriptor_from_tree_1): Adjust loc_descriptor callers.
(add_location_or_const_value_attribute): Likewise.  For single
location loc_lists attempt to use add_const_value_attribute
for constant decls.  Add DW_AT_const_value even if
NOTE_VAR_LOCATION is VAR_LOCATION with CONSTANT_P or CONST_STRING
in its expression.
* cfgbuild.c (inside_basic_block_p): Handle debug insns.
(control_flow_insn_p): Likewise.
* tree-parloops.c (eliminate_local_variables_stmt): Handle debug
stmt.
(separate_decls_in_region_debug_bind): New.
(separate_decls_in_region): Process debug bind stmts afterwards.
* recog.c (verify_changes): Handle debug insns.
(extract_insn): Likewise.
(peephole2_optimize): Skip debug insns.
* dse.c (scan_insn): Skip debug insns.
* sel-sched-ir.c (return_nop_to_pool): Take full_tidying argument.
Pass it on.
(setup_id_for_insn): Handle debug insns.
(maybe_tidy_empty_bb): Adjust whitespace.
(tidy_control_flow): Skip debug insns.
(sel_remove_insn): Adjust for debug insns.
(sel_estimate_number_of_insns): Skip debug insns.
(create_insn_rtx_from_pattern): Handle debug insns.
(create_copy_of_insn_rtx): Likewise.
* sel-sched-.h (sel_bb_end): Declare.
(sel_bb_empty_or_nop_p): New.
(get_all_loop_exits): Use it.
(_eligible_successor_edge_p): Likewise.
(return_nop_to_pool): Adjust.
* tree-eh.c (tre_empty_eh_handler_p): Skip debug stmts.
* ira-lives.c (process_bb_node_lives): Skip debug insns.
* gimple-pretty-print.c (dump_gimple_debug): New.
(dump_gimple_stmt): Use it.
(dump_bb_header): Skip gimple debug stmts.
* regmove.c (optimize_reg_copy_1): Discount debug insns.
(fixup_match_2): Likewise.
(regmove_backward_pass): Likewise.  Simplify combined
replacement.  Handle debug insns.
* function.c (instantiate_virtual_regs): Handle debug insns.
* function.h (struct emit_status): Add x_cur_debug_insn_uid.
* print-rtl.h: Include cselib.h.
(print_rtx): Print VALUEs.  Split out and recurse for
VAR_LOCATIONs.
* df.h (df_inns_rescan_debug_internal): Declare.
* gcse.c (alloc_hash_table): Estimate n_insns.
(cprop_insn): Don't regard debug insns as changes.
(bypass_conditional_jumps): Skip debug insns.
(one_pre_gcse_pass): Adjust.
(one_code_hoisting_pass): Likewise.
(compute_ld_motion_mems): Skip debug insns.
(one_cprop_pass): Adjust.
* tree-if-conv.c (tree_if_convert_stmt): Reset debug stmts.
(if_convertible_stmt_p): Handle debug stmts.
* init-regs.c (initialize_uninitialized_regs): Skip debug insns.
* tree-vect-loop.c (vect_is_simple_reduction): Skip debug stmts.
* ira-build.c (create_bb_allocnos): Skip debug insns.
* tree-flow-inline.h (has_zero_uses): Discount debug stmts.
(has_single_use): Likewise.
(single_imm_use): Likewise.
(num_imm_uses): Likewise.
* tree-ssa-phiopt.c (empty_block_p): Skip debug stmts.
* tree-ssa-coalesce.c (build_ssa_conflict_graph): Skip debug stmts.
(create_outofssa_var_map): Likewise.
* lower-subreg.c (adjust_decomposed_uses): New.
(resolve_debug): New.
(decompose_multiword_subregs): Use it.
* tree-dfa.c (find_referenced_vars): Skip debug stmts.
* emit-rtl.c: Include params.h.
(cur_debug_insn_uid): Define.
(set_new_first_and_last_insn): Set cur_debug_insn_uid too.
(copy_rtx_if_shared_1): Handle debug insns.
(reset_used_flags): Likewise.
(set_used_flags): LIkewise.
(get_max_insn_count): New.
(next_nondebug_insn): New.
(prev_nondebug_insn): New.
(make_debug_insn_raw): New.
(emit_insn_before_noloc): Handle debug insns.
(emit_jump_insn_before_noloc): Likewise.
(emit_call_insn_before_noloc): Likewise.
(emit_debug_insn_before_noloc): New.
(emit_insn_after_noloc): Handle debug insns.
(emit_jump_insn_after_noloc): Likewise.
(emit_call_insn_after_noloc): Likewise.
(emit_debug_insn_after_noloc): Likewise.
(emit_insn_after): Take loc from earlier non-debug insn.
(emit_jump_insn_after): Likewise.
(emit_call_insn_after): Likewise.
(emit_debug_insn_after_setloc): New.
(emit_debug_insn_after): New.
(emit_insn_before): Take loc from later non-debug insn.
(emit_jump_insn_before): Likewise.
(emit_call_insn_before): Likewise.
(emit_debug_insn_before_setloc): New.
(emit_debug_insn_before): New.
(emit_insn): Handle debug insns.
(emit_debug_insn): New.
(emit_jump_insn): Handle debug insns.
(emit_call_insn): Likewise.
(emit): Likewise.
(init_emit): Take min-nondebug-insn-uid into account.
Initialize cur_debug_insn_uid.
(emit_copy_of_insn_after): Handle debug insns.
* cfgexpand.c (gimple_assign_rhs_to_tree): Do not overwrite
location of single rhs in place.
(maybe_dump_rtl_for_gimple_stmt): Dump lineno.
(floor_sdiv_adjust): New.
(cell_sdiv_adjust): New.
(cell_udiv_adjust): New.
(round_sdiv_adjust): New.
(round_udiv_adjust): New.
(wrap_constant): Moved from cselib.
(unwrap_constant): New.
(expand_debug_expr): New.
(expand_debug_locations): New.
(expand_gimple_basic_block): Drop hiding redeclaration.  Expand
debug bind stmts.
(gimple_expand_cfg): Expand debug locations.
* cselib.c: Include tree-pass.h.
(struct expand_value_data): New.
(cselib_record_sets_hook): New.
(PRESERVED_VALUE_P, LONG_TERM_PRESERVED_VALUE_P): New.
(cselib_clear_table): Move, and implemnet in terms of...
(cselib_reset_table_with_next_value): ... this.
(cselib_get_next_unknown_value): New.
(discard_useless_locs): Don't discard preserved values.
(cselib_preserve_value): New.
(cselib_preserved_value_p): New.
(cselib_preserve_definitely): New.
(cselib_clear_preserve): New.
(cselib_preserve_only_values): New.
(new_cselib_val): Take rtx argument.  Dump it in details.
(cselib_lookup_mem): Adjust.
(expand_loc): Take regs_active in struct.  Adjust.  Silence
dumps unless details are requested.
(cselib_expand_value_rtx_cb): New.
(cselib_expand_value_rtx): Rename and reimplment in terms of...
(cselib_expand_value_rtx_1): ... this.  Adjust.  Silence dumps
without details.  Copy more subregs.  Try to resolve values
using a callback.  Wrap constants.
(cselib_subst_to_values): Adjust.
(cselib_log_lookup): New.
(cselib_lookup): Call it.
(cselib_invalidate_regno): Don't count preserved values as
useless.
(cselib_invalidate_mem): Likewise.
(cselib_record_set): Likewise.
(struct set): Renamed to cselib_set, moved to cselib.h.
(cselib_record_sets): Adjust.  Call hook.
(cselib_process_insn): Reset table when it would be cleared.
(dump_cselib_val): New.
(dump_cselib_table): New.
* tree-cfgcleanup.c (tree_forwarded_block_p): Skip debug stmts.
(remove_forwarder_block): Support moving debug stmts.
* cselib.h (cselib_record_sets_hook): Declare.
(cselib_expand_callback): New type.
(cselib_expand_value_rtx_cb): Declare.
(cselib_reset_table_with_next_value): Declare.
(cselib_get_next_unknown_value): Declare.
(cselib_preserve_value): Declare.
(cselib_preserved_value_p): Declare.
(cselib_preserve_only_values): Declare.
(dump_cselib_table): Declare.
* cfgcleanup.c (flow_find_cross_jump): Skip debug insns.
(try_crossjump_to_edge): Likewise.
(delete_unreachable_blocks): Remove dominant GIMPLE blocks after
dominated blocks when debug stmts are present.
* simplify-rtx.c (delegitimize_mem_from_attrs): New.
* tree-ssa-live.c (remove_unused_locals): Skip debug stmts.
(set_var_live_on_entry): Likewise.
* loop-invariant.c (find_invariants_bb): Skip debug insns.
* cfglayout.c (curr_location, last_location): Make static.
(set_curr_insn_source_location): Don't avoid bouncing.
(get_curr_insn_source_location): New.
(get_curr_insn_block): New.
(duplicate_insn_chain): Handle debug insns.
* tree-ssa-forwprop.c (forward_propagate_addr_expr): Propagate
into debug stmts.
* common.opt (fcompare-debug): Move to sort order.
(fdump-unnumbered-links): Likewise.
(fvar-tracking-assignments): New.
(fvar-tracking-assignments-toggle): New.
* tree-ssa-dce.c (mark_stmt_necessary): Don't mark blocks
because of debug stmts.
(mark_stmt_if_obviously_necessary): Mark debug stmts.
(eliminate_unnecessary_stmts): Walk dominated blocks before
dominators.
* tree-ssa-ter.c (find_replaceable_in_bb): Skip debug stmts.
* ira.c (memref_used_between_p): Skip debug insns.
(update_equiv_regs): Likewise.
* sched-deps.c (sd_lists_size): Accept empty list.
(sd_init_insn): Mark debug insns.
(sd_finish_insn): Unmark them.
(sd_add_dep): Reject non-debug deps on debug insns.
(fixup_sched_groups): Give debug insns group treatment.
Skip debug insns.
(sched_analyze_reg): Don't mark debug insns for sched before call.
(sched_analyze_2): Handle debug insns.
(sched_analyze_insn): Compute next non-debug insn.  Handle debug
insns.
(deps_analyze_insn): Handle debug insns.
(deps_start_bb): Skip debug insns.
(init_deps): Initialize last_debug_insn.
* tree-ssa.c (target_for_debug_bind): New.
(find_released_ssa_name): New.
(propagate_var_def_into_debug_stmts): New.
(propagate_defs_into_debug_stmts): New.
(verify_ssa): Skip debug bind stmts without values.
(warn_uninialized_vars): Skip debug stmts.
* target-def.h (TARGET_DELEGITIMIZE_ADDRESS): Set default.
* rtl.c (rtx_equal_p_cb): Handle VALUEs.
(rtx_equal_p): Likewise.
* ira-costs.c (scan_one_insn): Skip debug insns.
(process_bb_node_for_hard_reg_moves): Likewise.
* rtl.h (DEBUG_INSN_P): New.
(NONDEBUG_INSN_P): New.
(MAY_HAVE_DEBUG_INSNS): New.
(INSN_P): Accept debug insns.
(RTX_FRAME_RELATED_P): Likewise.
(INSN_DELETED_P): Likewise
(PAT_VAR_LOCATION_DECL): New.
(PAT_VAR_LOCATION_LOC): New.
(PAT_VAR_OCATION_STATUS): New.
(NOTE_VAR_LOCATION_DECL): Reimplement.
(NOTE_VAR_LOCATION_LOC): Likewise.
(NOTE_VAR_LOCATION_STATUS): Likewise.
(INSN_VAR_LOCATION): New.
(INSN_VAR_LOCATION_DECL): New.
(INSN_VAR_LOCATION_LOC): New.
(INSN_VAR_LOCATION_STATUS): New.
(gen_rtx_UNKNOWN_VAR_LOC): New.
(VAR_LOC_UNKNOWN_P): New.
(NOTE_DURING_CALL_P): New.
(SCHED_GROUP_P): Accept debug insns.
(emit_debug_insn_before): Declare.
(emit_debug_insn_before_noloc): Declare.
(emit_debug_insn_beore_setloc): Declare.
(emit_debug_insn_after): Declare.
(emit_debug_insn_after_noloc): Declare.
(emit_debug_insn_after_setloc): Declare.
(emit_debug_insn): Declare.
(make_debug_insn_raw): Declare.
(prev_nondebug_insn): Declare.
(next_nondebug_insn): Declare.
(delegitimize_mem_from_attrs): Declare.
(get_max_insn_count): Declare.
(wrap_constant): Declare.
(unwrap_constant): Declare.
(get_curr_insn_source_location): Declare.
(get_curr_insn_block): Declare.
* tree-inline.c (insert_debug_decl_map): New.
(processing_debug_stmt): New.
(remap_decl): Don't create new mappings in debug stmts.
(remap_gimple_op_r): Don't add references in debug stmts.
(copy_tree_body_r): Likewise.
(remap_gimple_stmt): Handle debug bind stmts.
(copy_bb): Skip debug stmts.
(copy_edges_for_bb): Likewise.
(copy_debug_stmt): New.
(copy_debug_stmts): New.
(copy_body): Copy debug stmts at the end.
(insert_init_debug_bind): New.
(insert_init_stmt): Take id.  Skip and emit debug stmts.
(setup_one_parameter): Remap variable earlier, register debug
mapping.
(estimate_num_insns): Skip debug stmts.
(expand_call_inline): Preserve debug_map.
(optimize_inline_calls): Check for no debug_stmts left-overs.
(unsave_expr_now): Preserve debug_map.
(copy_gimple_seq_and_replace_locals): Likewise.
(tree_function_versioning): Check for no debug_stmts left-overs.
Init and destroy debug_map as needed.  Split edges unconditionally.
(build_duplicate_type): Init and destroy debug_map as needed.
* tree-inline.h: Include gimple.h instead of pointer-set.h.
(struct copy_body_data): Add debug_stmts and debug_map.
* sched-int.h (struct ready_list): Add n_debug.
(struct deps): Add last_debug_insn.
(DEBUG_INSN_SCHED_P): New.
(BOUNDARY_DEBUG_INSN_P): New.
(SCHEDULE_DEBUG_INSN_P): New.
(sd_iterator_cond): Accept empty list.
* combine.c (create_log_links): Skip debug insns.
(combine_instructions): Likewise.
(cleanup_auto_inc_dec): New.  From Jakub Jelinek: Make sure the
return value is always unshared.
(struct rtx_subst_pair): New.
(auto_adjust_pair): New.
(propagate_for_debug_subst): New.
(propagate_for_debug): New.
(try_combine): Skip debug insns.  Propagate removed defs into
debug insns.
(next_nonnote_nondebug_insn): New.
(distribute_notes): Use it.  Skip debug insns.
(distribute_links): Skip debug insns.
* tree-outof-ssa.c (set_location_for_edge): Likewise.
* resource.c (mark_target_live_regs): Likewise.
* var-tracking.c: Include cselib.h and target.h.
(enum micro_operation_type): Add MO_VAL_USE, MO_VAL_LOC, and
MO_VAL_SET.
(micro_operation_type_name): New.
(enum emit_note_where): Add EMIT_NOTE_AFTER_CALL_INSN.
(struct micro_operation_def): Update comments.
(decl_or_value): New type.  Use instead of decls.
(struct emit_note_data_def): Add vars.
(struct attrs_def): Use decl_or_value.
(struct variable_tracking_info_def): Add permp, flooded.
(struct location_chain_def): Update comment.
(struct variable_part_def): Use decl_or_value.
(struct variable_def): Make var_part a variable length array.
(valvar_pool): New.
(scratch_regs): New.
(cselib_hook_called): New.
(dv_is_decl_p): New.
(dv_is_value_p): New.
(dv_as_decl): New.
(dv_as_value): New.
(dv_as_opaque): New.
(dv_onepart_p): New.
(dv_pool): New.
(IS_DECL_CODE): New.
(check_value_is_not_decl): New.
(dv_from_decl): New.
(dv_from_value): New.
(dv_htab_hash): New.
(variable_htab_hash): Use it.
(variable_htab_eq): Support values.
(variable_htab_free): Free from the right pool.
(attrs_list_member, attrs_list_insert): Use decl_or_value.
(attrs_list_union): Adjust.
(attrs_list_mpdv_union): New.
(tie_break_pointers): New.
(canon_value_cmp): New.
(unshare_variable): Return possibly-modified slot.
(vars_copy_1): Adjust.
(var_reg_decl_set): Adjust.  Split out of...
(var_reg_set): ... this.
(get_init_value): Adjust.
(var_reg_delete_and_set): Adjust.
(var_reg_delete): Adjust.
(var_regno_delete): Adjust.
(var_mem_decl_set): Split out of...
(var_mem_set): ... this.
(var_mem_delete_and_set): Adjust.
(var_mem_delete): Adjust.
(val_store): New.
(val_reset): New.
(val_resolve): New.
(variable_union): Adjust.  Speed up merge of 1-part vars.
(variable_canonicalize): Use unshared slot.
(VALUED_RECURSED_INTO): New.
(find_loc_in_1pdv): New.
(struct dfset_merge): New.
(insert_into_intersection): New.
(intersect_loc_chains): New.
(loc_cmp): New.
(canonicalize_loc_order_check): New.
(canonicalize_values_mark): New.
(canonicalize_values_star): New.
(variable_merge_over_cur): New.
(variable_merge_over_src): New.
(dataflow_set_merge): New.
(dataflow_set_equiv_regs): New.
(remove_duplicate_values): New.
(struct dfset_post_merge): New.
(variable_post_merge_new_vals): New.
(variable_post_merge_perm_vals): New.
(dataflow_post_merge_adjust): New.
(find_mem_expr_in_1pdv): New.
(dataflow_set_preserve_mem_locs): New.
(dataflow_set_remove_mem_locs): New.
(dataflow_set_clear_at_call): New.
(onepart_variable_different_p): New.
(variable_different_p): Use it.
(dataflow_set_different_1): Adjust.  Make detailed dump
more verbose.
(track_expr_p): Add need_rtl parameter.  Don't generate rtl
if not needed.
(track_loc_p): Pass it true.
(struct count_use_info): New.
(find_use_val): New.
(replace_expr_with_values): New.
(log_op_type): New.
(use_type): New, partially split out of...
(count_uses): ... this.  Count new micro-ops.
(count_uses_1): Adjust.
(count_stores): Adjust.
(count_with_sets): New.
(VAL_NEEDS_RESOLUTION): New.
(VAL_HOLDS_TRACK_EXPR): New.
(VAL_EXPR_IS_COPIED): New.
(VAL_EXPR_IS_CLOBBERED): New.
(add_uses): Adjust.  Generate new micro-ops.
(add_uses_1): Adjust.
(add_stores): Generate new micro-ops.
(add_with_sets): New.
(find_src_status): Adjust.
(find_src_set_src): Adjust.
(compute_bb_dataflow): Use dataflow_set_clear_at_call.
Handle new micro-ops.  Canonicalize value equivalances.
(vt_find_locations): Compute total size of hash tables for
dumping.  Perform merge for var-tracking-assignments.  Don't
disregard single-block loops.
(dump_attrs_list): Handle decl_or_value.
(dump_variable): Take variable.  Deal with decl_or_value.
(dump_variable_slot): New.
(dump_vars): Use it.
(dump_dataflow_sets): Adjust.
(set_slot_part): New, extended to support one-part variables
after splitting out of...
(set_variable_part): ... this.
(clobber_slot_part): New, split out of...
(clobber_variable_part): ... this.
(delete_slot_part): New, split out of...
(delete_variable_part): .... this.
(check_wrap_constant): New.
(vt_expand_loc_callback): New.
(vt_expand_loc): New.
(emit_note_insn_var_location): Adjust.  Handle values.  Handle
EMIT_NOTE_AFTER_CALL_INSN.
(emit_notes_for_differences_1): Adjust.  Handle values.
(emit_notes_for_differences_2): Likewise.
(emit_notes_for_differences): Adjust.
(emit_notes_in_bb): Take pointer to set.  Emit AFTER_CALL_INSN
notes.  Adjust.  Handle new micro-ops.
(vt_add_function_parameters): Adjust.  Create and bind values.
(vt_initialize): Adjust.  Initialize scratch_regs and
valvar_pool, flooded and perm..  Initialize and use cselib.  Log
operations.  Move some code to count_with_sets and add_with_sets.
(delete_debug_insns): New.
(vt_debug_insns_local): New.
(vt_finalize): Release permp, valvar_pool, scratch_regs.  Finish
cselib.
(var_tracking_main): If var-tracking-assignments is enabled
but var-tracking isn't, delete debug insns and leave.  Likewise
if we exceed limits or fail the stack adjustments tests, and
after all var-tracking processing.
More in var-tracking, from Jakub Jelinek <jakub@redhat.com>:
(dataflow_set): Add traversed_vars.
(value_chain, const_value_chain): New typedefs.
(value_chain_pool, value_chains): New variables.
(value_chain_htab_hash, value_chain_htab_eq, add_value_chain,
add_value_chains, add_cselib_value_chains, remove_value_chain,
remove_value_chains, remove_cselib_value_chains): New functions.
(shared_hash_find_slot_unshare_1, shared_hash_find_slot_1,
shared_hash_find_slot_noinsert_1, shared_hash_find_1): New
static inlines.
(shared_hash_find_slot_unshare, shared_hash_find_slot,
shared_hash_find_slot_noinsert, shared_hash_find): Update.
(dst_can_be_shared): New variable.
(unshare_variable): Unshare set->vars if shared, use shared_hash_*.
Clear dst_can_be_shared.  If set->traversed_vars is non-NULL and
different from set->vars, look up slot again instead of using the
passed in slot.
(dataflow_set_init): Initialize traversed_vars.
(variable_union): Use shared_hash_*.  Use initially NO_INSERT
lookup if set->vars is shared.  Don't keep slot cleared before
calling unshare_variable.  Unshare set->vars if needed.  Adjust
unshare_variable callers.  Clear dst_can_be_shared if needed.
Even ->refcount == 1 vars must be unshared if set->vars is shared
and var needs to be modified.
(dataflow_set_union): Set traversed_vars during canonicalization.
(VALUE_CHANGED, DECL_CHANGED): Define.
(set_dv_changed, dv_changed_p): New static inlines.
(track_expr_p): Clear DECL_CHANGED.
(dump_dataflow_sets): Set it.
(variable_was_changed): Call set_dv_changed.
(emit_note_insn_var_location): Likewise.
(changed_variables_stack): New variable.
(check_changed_vars_1, check_changed_vars_2): New functions.
(emit_notes_for_changes): Do nothing if changed_variables is
empty.  Traverse changed_variables with check_changed_vars_1,
call check_changed_vars_2 on each changed_variables_stack entry.
(emit_notes_in_bb): Add SET argument.  Just clear it at the
beginning, use it instead of local &set, don't destroy it at the
end.
(vt_emit_notes): Call dataflow_set_clear early on all
VTI(bb)->out sets, never use them, instead use emit_notes_in_bb
computed set, dataflow_set_clear also VTI(bb)->in when we are
done with the basic block.  Initialize changed_variables_stack,
free it afterwards.  If ENABLE_CHECKING verify that after noting
differences to an empty set value_chains hash table is empty.
(vt_initialize): Initialize value_chains and value_chain_pool.
(vt_finalize): Delete value_chains htab, free value_chain_pool.
(variable_tracking_main): Call dump_dataflow_sets before calling
vt_emit_notes, not after it.
* tree-flow.h (propagate_defs_into_debug_stmts): Declare.
(propagate_var_def_into_debug_stmts): Declare.
* df-problems.c (df_lr_bb_local_compute): Skip debug insns.
(df_set_note): Reject debug insns.
(df_whole_mw_reg_dead_p): Take added_notes_p argument.  Don't
add notes to debug insns.
(df_note_bb_compute): Adjust.  Likewise.
(df_simulate_uses): Skip debug insns.
(df_simulate_initialize_backwards): Likewise.
* reg-stack.c (subst_stack_regs_in_debug_insn): New.
(subst_stack_regs_pat): Reject debug insns.
(convert_regs_1): Handle debug insns.
* Makefile.in (TREE_INLINE_H): Take pointer-set.h from GIMPLE_H.
(print-rtl.o): Depend on cselib.h.
(cselib.o): Depend on TREE_PASS_H.
(var-tracking.o): Depend on cselib.h and TARGET_H.
* sched-rgn.c (rgn_estimate_number_of_insns): Discount
debug insns.
(init_ready_list): Skip boundary debug insns.
(add_branch_dependences): Skip debug insns.
(free_block_dependencies): Check for blocks with only debug
insns.
(compute_priorities): Likewise.
* gimple.c (gss_for_code): Handle GIMPLE_DEBUG.
(gimple_build_with_ops_stat): Take subcode as unsigned.  Adjust
all callers.
(gimple_build_debug_bind_stat): New.
(empty_body_p): Skip debug stmts.
(gimple_has_side_effects): Likewise.
(gimple_rhs_has_side_effects): Likewise.
* gimple.h (enum gimple_debug_subcode, GIMPLE_DEBUG_BIND): New.
(gimple_build_debug_bind_stat): Declare.
(gimple_build_debug_bind): Define.
(is_gimple_debug): New.
(gimple_debug_bind_p): New.
(gimple_debug_bind_get_var): New.
(gimple_debug_bind_get_value): New.
(gimple_debug_bind_get_value_ptr): New.
(gimple_debug_bind_set_var): New.
(gimple_debug_bind_set_value): New.
(GIMPLE_DEBUG_BIND_NOVALUE): New internal temporary macro.
(gimple_debug_bind_reset_value): New.
(gimple_debug_bind_has_value_p): New.
(gsi_next_nondebug): New.
(gsi_prev_nondebug): New.
(gsi_start_nondebug_bb): New.
(gsi_last_nondebug_bb): New.
* sched-vis.c (print_pattern): Handle VAR_LOCATION.
(print_insn): Handle DEBUG_INSN.
* tree-cfg.c (remove_bb): Walk stmts backwards.  Let loc
of first insn prevail.
(first_stmt): Skip debug stmts.
(first_non_label_stmt): Likewise.
(last_stmt): Likewise.
(has_zero_uses_1): New.
(single_imm_use_1): New.
(verify_gimple_debug): New.
(verify_types_in_gimple_stmt): Handle debug stmts.
(verify_stmt): Likewise.
(debug_loop_num): Skip debug stmts.
(remove_edge_and_dominated_blocks): Remove dominators last.
* tree-ssa-reasssoc.c (rewrite_expr_tree): Propagate into
debug stmts.
(linearize_expr): Likewise.
* config/i386/i386.c (ix86_delegitimize_address): Call
default implementation.
* config/ia64/ia64.c (ia64_safe_itanium_class): Handle debug
insns.
(group_barrier_needed): Skip debug insns.
(emit_insn_group_barriers): Likewise.
(emit_all_insn_group_barriers): Likewise.
(ia64_variable_issue): Handle debug insns.
(ia64_dfa_new_cycle): Likewise.
(final_emit_insn_group_barriers): Skip debug insns.
(ia64_dwarf2out_def_steady_cfa): Take frame argument.  Don't
def cfa without frame.
(process_set): Likewise.
(process_for_unwind_directive): Pass frame on.
* config/rs6000/rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Define.
(rs6000_delegitimize_address): New.
(rs6000_debug_adjust_cost): Handle debug insns.
(is_microcoded_insn): Likewise.
(is_cracked_insn): Likewise.
(is_nonpipeline_insn): Likewise.
(insn_must_be_first_in_group): Likewise.
(insn_must_be_last_in_group): Likewise.
(force_new_group): Likewise.
* cfgrtl.c (rtl_split_block): Emit INSN_DELETED note if block
contains only debug insns.
(rtl_merge_blocks): Skip debug insns.
(purge_dead_edges): Likewise.
(rtl_block_ends_with_call_p): Skip debug insns.
* dce.c (deletable_insn_p): Handle VAR_LOCATION.
(mark_reg_dependencies): Skip debug insns.
* params.def (PARAM_MIN_NONDEBUG_INSN_UID): New.
* tree-ssanames.c (release_ssa_name): Propagate def into
debug stmts.
* tree-ssa-threadedge.c
(record_temporary_equivalences_from_stmts): Skip debug stmts.
* regcprop.c (replace_oldest_value_addr): Skip debug insns.
(replace_oldest_value_mem): Use ALL_REGS for debug insns.
(copyprop_hardreg_forward_1): Handle debug insns.
* reload1.c (reload): Skip debug insns.  Replace unassigned
pseudos in debug insns with their equivalences.
(eliminate_regs_in_insn): Skip debug insns.
(emit_input_reload_insns): Skip debug insns at first, adjust
them later.
* tree-ssa-operands.c (add_virtual_operand): Reject debug stmts.
(get_indirect_ref_operands): Pass opf_no_vops on.
(get_expr_operands): Likewise.  Skip debug stmts.
(parse_ssa_operands): Scan debug insns with opf_no_vops.
gcc/testsuite/ChangeLog:
* gcc.dg/guality/guality.c: New.
* gcc.dg/guality/guality.h: New.
* gcc.dg/guality/guality.exp: New.
* gcc.dg/guality/example.c: New.
* lib/gcc-dg.exp (cleanup-dump): Remove .gk files.
(cleanup-saved-temps): Likewise, .gkd files too.
gcc/cp/ChangeLog:
* cp-tree.h (TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS): New.
* cp-lang.c (cxx_dwarf_name): Pass it.
* error.c (count_non_default_template_args): Take flags as
argument.  Adjust all callers.  Skip counting of default
arguments if the new flag is given.
ChangeLog:
* Makefile.tpl (BUILD_CONFIG): Default to bootstrap-debug.
* Makefile.in: Rebuilt.
contrib/ChangeLog:
* compare-debug: Look for .gkd files and compare them.
config/ChangeLog:
* bootstrap-debug.mk: Add comments.
* bootstrap-debug-big.mk: New.
* bootstrap-debug-lean.mk: New.
* bootstrap-debug-ckovw.mk: Add comments.
* bootstrap-debug-lib.mk: Drop CFLAGS for stages.  Use -g0
for TFLAGS in stage1.  Drop -fvar-tracking-assignments-toggle.

From-SVN: r151312
2009-09-02 02:42:21 +00:00
Alexandre Oliva
8fc68cba09 invoke.texi (-fvar-tracking-assignments): New.
gcc/ChangeLog:
* doc/invoke.texi (-fvar-tracking-assignments): New.
(-fvar-tracking-assignments-toggle): New.
(-fdump-final-insns=file): Mark filename as optional.
(--param min-nondebug-insn-uid): New.
(-gdwarf-@{version}): Mention version 4.
* opts.c (common_handle_option): Accept it.
* tree-vrp.c (find_assert_locations_1): Skip debug stmts.
* regrename.c (regrename_optimize): Drop last.  Don't count debug
insns as uses.  Don't reject change because of debug insn.
(do_replace): Reject DEBUG_INSN as chain starter.  Take base_regno
from the chain starter, and check for inexact matches in
DEBUG_INSNS.
(scan_rtx_reg): Accept inexact matches in DEBUG_INSNs.
(build_def_use): Simplify and fix the marking of DEBUG_INSNs.
* sched-ebb.c (schedule_ebbs): Skip boundary debug insns.
* fwprop.c (forward_propagate_and_simplify): ...into debug insns.
* doc/gimple.texi (is_gimple_debug): New.
(gimple_debug_bind_p): New.
(is_gimple_call, gimple_assign_cast_p): End sentence with period.
* doc/install.texi (bootstrap-debug): More details.
(bootstrap-debug-big, bootstrap-debug-lean): Document.
(bootstrap-debug-lib): More details.
(bootstrap-debug-ckovw): Update.
(bootstrap-time): New.
* tree-into-ssa.c (mark_def_sites): Skip debug stmts.
(insert_phi_nodes_for): Insert debug stmts.
(rewrite_stmt): Take iterator.  Insert debug stmts.
(rewrite_enter_block): Adjust.
(maybe_replace_use_in_debug_stmt): New.
(rewrite_update_stmt): Use it.
(mark_use_interesting): Return early for debug stmts.
* tree-ssa-loop-im.c (rewrite_bittest): Propagate DEFs into debug
stmts before replacing stmt.
(move_computations_stmt): Likewise.
* ira-conflicts.c (add_copies): Skip debug insns.
* regstat.c (regstat_init_n_sets_and_refs): Discount debug insns.
(regstat_bb_compute_ri): Skip debug insns.
* tree-ssa-threadupdate.c (redirection_block_p): Skip debug stmts.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt,
check_loop_closed_ssa_stmt): Skip debug stmts.
* tree-tailcall.c (find_tail_calls): Likewise.
* tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Likewise.
* tree.h (MAY_HAVE_DEBUG_STMTS): New.
(build_var_debug_value_stat): Declare.
(build_var_debug_value): Define.
(target_for_debug_bind): Declare.
* reload.c (find_equiv_reg): Skip debug insns.
* rtlanal.c (reg_used_between_p): Skip debug insns.
(side_effects_p): Likewise.
(canonicalize_condition): Likewise.
* ddg.c (create_ddg_dep_from_intra_loop_link): Check that non-debug
insns never depend on debug insns.
(create_ddg_dep_no_link): Likewise.
(add_cross_iteration_register_deps): Use ANTI_DEP for debug insns.
Don't add inter-loop dependencies for debug insns.
(build_intra_loop_deps): Likewise.
(create_ddg): Count debug insns.
* ddg.h (struct ddg::num_debug): New.
(num_backargs): Pair up with previous int field.
* diagnostic.c (diagnostic_report_diagnostic): Skip notes on
-fcompare-debug-second.
* final.c (get_attr_length_1): Skip debug insns.
(rest_of_clean-state): Don't dump CFA_RESTORE_STATE.
* gcc.c (invoke_as): Call compare-debug-dump-opt.
(driver_self_specs): Map -fdump-final-insns to
-fdump-final-insns=..
(get_local_tick): New.
(compare_debug_dump_opt_spec_function): Test for . argument and
compute output name.  Compute temp output spec without flag name.
Compute -frandom-seed.
(OPT): Undef after use.
* cfgloopanal.c (num_loop_insns): Skip debug insns.
(average_num_loop_insns): Likewise.
* params.h (MIN_NONDEBUG_INSN_UID): New.
* gimple.def (GIMPLE_DEBUG): New.
* ipa-reference.c (scan_stmt_for_static_refs): Skip debug stmts.
* auto-inc-dec.c (merge_in_block): Skip debug insns.
(merge_in_block): Fix whitespace.
* toplev.c (flag_var_tracking): Update comment.
(flag_var_tracking_assignments): New.
(flag_var_tracking_assignments_toggle): New.
(process_options): Don't open final insns dump file if we're not
going to write to it.  Compute defaults for var_tracking.
* df-scan.c (df_insn_rescan_debug_internal): New.
(df_uses_record): Handle debug insns.
* haifa-sched.c (ready): Initialize n_debug.
(contributes_to_priority): Skip debug insns.
(dep_list_size): New.
(priority): Use it.
(rank_for_schedule): Likewise.  Schedule debug insns as soon as
they're ready.  Disregard previous debug insns to make decisions.
(queue_insn): Never queue debug insns.
(ready_add, ready_remove_first, ready_remove): Count debug insns.
(schedule_insn): Don't reject debug insns because of issue rate.
(get_ebb_head_tail, no_real_insns_p): Skip boundary debug insns.
(queue_to_ready): Skip and discount debug insns.
(choose_ready): Let debug insns through.
(schedule_block): Check boundary debug insns.  Discount debug
insns, schedule them early.  Adjust whitespace.
(set_priorities): Check for boundary debug insns.
(add_jump_dependencies): Use dep_list_size.
(prev_non_location_insn): New.
(check_cfg): Use it.
* tree-ssa-loop-ivopts.c (find-interesting_users): Skip debug
stmts.
(remove_unused_ivs): Reset debug stmts.
* modulo-sched.c (const_iteration_count): Skip debug insns.
(res_MII): Discount debug insns.
(loop_single_full_bb_p): Skip debug insns.
(sms_schedule): Likewise.
(sms_schedule_by_order): Likewise.
(ps_has_conflicts): Likewise.
* caller-save.c (refmarker_fn): New.
(save_call_clobbered_regs): Replace regs with saved mem in
debug insns.
(mark_referenced_regs): Take pointer, mark and arg.  Adjust.
Call refmarker_fn mark for hardregnos.
(mark_reg_as_referenced): New.
(replace_reg_with_saved_mem): New.
* ipa-pure-const.c (check_stmt): Skip debug stmts.
* cse.c (cse_insn): Canonicalize debug insns.  Skip them when
searching back.
(cse_extended_basic_block): Skip debug insns.
(count_reg_usage): Likewise.
(is_dead_reg): New, split out of...
(set_live_p): ... here.
(insn_live_p): Use it for debug insns.
* tree-stdarg.c (check_all_va_list_escapes): Skip debug stmts.
(execute_optimize_stdarg): Likewise.
* tree-ssa-dom.c (propagate_rhs_into_lhs): Likewise.
* tree-ssa-propagate.c (substitute_and_fold): Don't regard
changes in debug stmts as changes.
* sel-sched.c (moving_insn_creates_bookkeeping_block_p): New.
(moveup_expr): Don't move across debug insns.  Don't move
debug insn if it would create a bookkeeping block.
(moveup_expr_cached): Don't use cache for debug insns that
are heads of blocks.
(compute_av_set_inside_bb): Skip debug insns.
(sel_rank_for_schedule): Schedule debug insns first.  Remove
dead code.
(block_valid_for_bookkeeping_p); Support lax searches.
(create_block_for_bookkeeping): Adjust block numbers when
encountering debug-only blocks.
(find_place_for_bookkeeping): Deal with debug-only blocks.
(generate_bookkeeping_insn): Accept no place to insert.
(remove_temp_moveop_nops): New argument full_tidying.
(prepare_place_to_insert): Deal with debug insns.
(advance_state_on_fence): Debug insns don't start cycles.
(update_boundaries): Take fence as argument.  Deal with
debug insns.
(schedule_expr_on_boundary): No full_tidying on debug insns.
(fill_insns): Deal with debug insns.
(track_scheduled_insns_and_blocks): Don't count debug insns.
(need_nop_to_preserve_insn_bb): New, split out of...
(remove_insn_from_stream): ... this.
(fur_orig_expr_not_found): Skip debug insns.
* rtl.def (VALUE): Move up.
(DEBUG_INSN): New.
* tree-ssa-sink.c (all_immediate_uses_same_place): Skip debug
stmts.
(nearest_common_dominator_of_uses): Take debug_stmts argument.
Set it if debug stmts are found.
(statement_sink_location): Skip debug stmts.  Propagate
moving defs into debug stmts.
* ifcvt.c (first_active_insn): Skip debug insns.
(last_active_insns): Likewise.
(cond_exec_process_insns): Likewise.
(noce_process_if_block): Likewise.
(check_cond_move_block): Likewise.
(cond_move_convert_if_block): Likewise.
(block_jumps_and_fallthru_p): Likewise.
(dead_or_predicable): Likewise.
* dwarf2out.c (debug_str_hash_forced): New.
(find_AT_string): Add comment.
(gen_label_for_indirect_string): New.
(get_debug_string_label): New.
(AT_string_form): Use it.
(mem_loc_descriptor): Handle non-TLS symbols.  Handle MINUS , DIV,
MOD, AND, IOR, XOR, NOT, ABS, NEG, and CONST_STRING.  Accept but
discard COMPARE, IF_THEN_ELSE, ROTATE, ROTATERT, TRUNCATE and
several operations that cannot be represented with DWARF opcodes.
(loc_descriptor): Ignore SIGN_EXTEND and ZERO_EXTEND.  Require
dwarf_version 4 for DW_OP_implicit_value and DW_OP_stack_value.
(dwarf2out_var_location): Take during-call mark into account.
(output_indirect_string): Update comment.  Output if there are
label and references.
(prune_indirect_string): New.
(prune_unused_types): Call it if debug_str_hash_forced.
More in dwarf2out.c, from Jakub Jelinek <jakub@redhat.com>:
(dw_long_long_const): Remove.
(struct dw_val_struct): Change val_long_long type to rtx.
(print_die, attr_checksum, same_dw_val_p, loc_descriptor): Adjust for
val_long_long change to CONST_DOUBLE rtx from a long hi/lo pair.
(output_die): Likewise.  Use HOST_BITS_PER_WIDE_INT size of each
component instead of HOST_BITS_PER_LONG.
(output_loc_operands): Likewise.   For const8* assert
HOST_BITS_PER_WIDE_INT rather than HOST_BITS_PER_LONG is >= 64.
(output_loc_operands_raw): For const8* assert HOST_BITS_PER_WIDE_INT
rather than HOST_BITS_PER_LONG is >= 64.
(add_AT_long_long): Remove val_hi and val_lo arguments, add
val_const_double.
(size_of_die): Use HOST_BITS_PER_WIDE_INT size multiplier instead of
HOST_BITS_PER_LONG for dw_val_class_long_long.
(add_const_value_attribute): Adjust add_AT_long_long caller.  Don't
handle TLS SYMBOL_REFs.  If CONST wraps a constant, tail recurse.
(dwarf_stack_op_name): Handle DW_OP_implicit_value and
DW_OP_stack_value.
(size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
Handle DW_OP_implicit_value.
(extract_int): Move prototype earlier.
(mem_loc_descriptor): For SUBREG punt if inner
mode size is wider than DWARF2_ADDR_SIZE.  Handle SIGN_EXTEND
and ZERO_EXTEND by DW_OP_shl and DW_OP_shr{a,}.  Handle
EQ, NE, GT, GE, LT, LE, GTU, GEU, LTU, LEU, SMIN, SMAX, UMIN,
UMAX, SIGN_EXTRACT, ZERO_EXTRACT.
(loc_descriptor): Compare mode size with DWARF2_ADDR_SIZE
instead of Pmode size.
(loc_descriptor): Add MODE argument.  Handle CONST_INT, CONST_DOUBLE,
CONST_VECTOR, CONST, LABEL_REF and SYMBOL_REF if mode != VOIDmode,
attempt to handle other expressions.  Don't handle TLS SYMBOL_REFs.
(concat_loc_descriptor, concatn_loc_descriptor,
loc_descriptor_from_tree_1): Adjust loc_descriptor callers.
(add_location_or_const_value_attribute): Likewise.  For single
location loc_lists attempt to use add_const_value_attribute
for constant decls.  Add DW_AT_const_value even if
NOTE_VAR_LOCATION is VAR_LOCATION with CONSTANT_P or CONST_STRING
in its expression.
* cfgbuild.c (inside_basic_block_p): Handle debug insns.
(control_flow_insn_p): Likewise.
* tree-parloops.c (eliminate_local_variables_stmt): Handle debug
stmt.
(separate_decls_in_region_debug_bind): New.
(separate_decls_in_region): Process debug bind stmts afterwards.
* recog.c (verify_changes): Handle debug insns.
(extract_insn): Likewise.
(peephole2_optimize): Skip debug insns.
* dse.c (scan_insn): Skip debug insns.
* sel-sched-ir.c (return_nop_to_pool): Take full_tidying argument.
Pass it on.
(setup_id_for_insn): Handle debug insns.
(maybe_tidy_empty_bb): Adjust whitespace.
(tidy_control_flow): Skip debug insns.
(sel_remove_insn): Adjust for debug insns.
(sel_estimate_number_of_insns): Skip debug insns.
(create_insn_rtx_from_pattern): Handle debug insns.
(create_copy_of_insn_rtx): Likewise.
* sel-sched-.h (sel_bb_end): Declare.
(sel_bb_empty_or_nop_p): New.
(get_all_loop_exits): Use it.
(_eligible_successor_edge_p): Likewise.
(return_nop_to_pool): Adjust.
* tree-eh.c (tre_empty_eh_handler_p): Skip debug stmts.
* ira-lives.c (process_bb_node_lives): Skip debug insns.
* gimple-pretty-print.c (dump_gimple_debug): New.
(dump_gimple_stmt): Use it.
(dump_bb_header): Skip gimple debug stmts.
* regmove.c (optimize_reg_copy_1): Discount debug insns.
(fixup_match_2): Likewise.
(regmove_backward_pass): Likewise.  Simplify combined
replacement.  Handle debug insns.
* function.c (instantiate_virtual_regs): Handle debug insns.
* function.h (struct emit_status): Add x_cur_debug_insn_uid.
* print-rtl.h: Include cselib.h.
(print_rtx): Print VALUEs.  Split out and recurse for
VAR_LOCATIONs.
* df.h (df_inns_rescan_debug_internal): Declare.
* gcse.c (alloc_hash_table): Estimate n_insns.
(cprop_insn): Don't regard debug insns as changes.
(bypass_conditional_jumps): Skip debug insns.
(one_pre_gcse_pass): Adjust.
(one_code_hoisting_pass): Likewise.
(compute_ld_motion_mems): Skip debug insns.
(one_cprop_pass): Adjust.
* tree-if-conv.c (tree_if_convert_stmt): Reset debug stmts.
(if_convertible_stmt_p): Handle debug stmts.
* init-regs.c (initialize_uninitialized_regs): Skip debug insns.
* tree-vect-loop.c (vect_is_simple_reduction): Skip debug stmts.
* ira-build.c (create_bb_allocnos): Skip debug insns.
* tree-flow-inline.h (has_zero_uses): Discount debug stmts.
(has_single_use): Likewise.
(single_imm_use): Likewise.
(num_imm_uses): Likewise.
* tree-ssa-phiopt.c (empty_block_p): Skip debug stmts.
* tree-ssa-coalesce.c (build_ssa_conflict_graph): Skip debug stmts.
(create_outofssa_var_map): Likewise.
* lower-subreg.c (adjust_decomposed_uses): New.
(resolve_debug): New.
(decompose_multiword_subregs): Use it.
* tree-dfa.c (find_referenced_vars): Skip debug stmts.
* emit-rtl.c: Include params.h.
(cur_debug_insn_uid): Define.
(set_new_first_and_last_insn): Set cur_debug_insn_uid too.
(copy_rtx_if_shared_1): Handle debug insns.
(reset_used_flags): Likewise.
(set_used_flags): LIkewise.
(get_max_insn_count): New.
(next_nondebug_insn): New.
(prev_nondebug_insn): New.
(make_debug_insn_raw): New.
(emit_insn_before_noloc): Handle debug insns.
(emit_jump_insn_before_noloc): Likewise.
(emit_call_insn_before_noloc): Likewise.
(emit_debug_insn_before_noloc): New.
(emit_insn_after_noloc): Handle debug insns.
(emit_jump_insn_after_noloc): Likewise.
(emit_call_insn_after_noloc): Likewise.
(emit_debug_insn_after_noloc): Likewise.
(emit_insn_after): Take loc from earlier non-debug insn.
(emit_jump_insn_after): Likewise.
(emit_call_insn_after): Likewise.
(emit_debug_insn_after_setloc): New.
(emit_debug_insn_after): New.
(emit_insn_before): Take loc from later non-debug insn.
(emit_jump_insn_before): Likewise.
(emit_call_insn_before): Likewise.
(emit_debug_insn_before_setloc): New.
(emit_debug_insn_before): New.
(emit_insn): Handle debug insns.
(emit_debug_insn): New.
(emit_jump_insn): Handle debug insns.
(emit_call_insn): Likewise.
(emit): Likewise.
(init_emit): Take min-nondebug-insn-uid into account.
Initialize cur_debug_insn_uid.
(emit_copy_of_insn_after): Handle debug insns.
* cfgexpand.c (gimple_assign_rhs_to_tree): Do not overwrite
location of single rhs in place.
(maybe_dump_rtl_for_gimple_stmt): Dump lineno.
(floor_sdiv_adjust): New.
(cell_sdiv_adjust): New.
(cell_udiv_adjust): New.
(round_sdiv_adjust): New.
(round_udiv_adjust): New.
(wrap_constant): Moved from cselib.
(unwrap_constant): New.
(expand_debug_expr): New.
(expand_debug_locations): New.
(expand_gimple_basic_block): Drop hiding redeclaration.  Expand
debug bind stmts.
(gimple_expand_cfg): Expand debug locations.
* cselib.c: Include tree-pass.h.
(struct expand_value_data): New.
(cselib_record_sets_hook): New.
(PRESERVED_VALUE_P, LONG_TERM_PRESERVED_VALUE_P): New.
(cselib_clear_table): Move, and implemnet in terms of...
(cselib_reset_table_with_next_value): ... this.
(cselib_get_next_unknown_value): New.
(discard_useless_locs): Don't discard preserved values.
(cselib_preserve_value): New.
(cselib_preserved_value_p): New.
(cselib_preserve_definitely): New.
(cselib_clear_preserve): New.
(cselib_preserve_only_values): New.
(new_cselib_val): Take rtx argument.  Dump it in details.
(cselib_lookup_mem): Adjust.
(expand_loc): Take regs_active in struct.  Adjust.  Silence
dumps unless details are requested.
(cselib_expand_value_rtx_cb): New.
(cselib_expand_value_rtx): Rename and reimplment in terms of...
(cselib_expand_value_rtx_1): ... this.  Adjust.  Silence dumps
without details.  Copy more subregs.  Try to resolve values
using a callback.  Wrap constants.
(cselib_subst_to_values): Adjust.
(cselib_log_lookup): New.
(cselib_lookup): Call it.
(cselib_invalidate_regno): Don't count preserved values as
useless.
(cselib_invalidate_mem): Likewise.
(cselib_record_set): Likewise.
(struct set): Renamed to cselib_set, moved to cselib.h.
(cselib_record_sets): Adjust.  Call hook.
(cselib_process_insn): Reset table when it would be cleared.
(dump_cselib_val): New.
(dump_cselib_table): New.
* tree-cfgcleanup.c (tree_forwarded_block_p): Skip debug stmts.
(remove_forwarder_block): Support moving debug stmts.
* cselib.h (cselib_record_sets_hook): Declare.
(cselib_expand_callback): New type.
(cselib_expand_value_rtx_cb): Declare.
(cselib_reset_table_with_next_value): Declare.
(cselib_get_next_unknown_value): Declare.
(cselib_preserve_value): Declare.
(cselib_preserved_value_p): Declare.
(cselib_preserve_only_values): Declare.
(dump_cselib_table): Declare.
* cfgcleanup.c (flow_find_cross_jump): Skip debug insns.
(try_crossjump_to_edge): Likewise.
(delete_unreachable_blocks): Remove dominant GIMPLE blocks after
dominated blocks when debug stmts are present.
* simplify-rtx.c (delegitimize_mem_from_attrs): New.
* tree-ssa-live.c (remove_unused_locals): Skip debug stmts.
(set_var_live_on_entry): Likewise.
* loop-invariant.c (find_invariants_bb): Skip debug insns.
* cfglayout.c (curr_location, last_location): Make static.
(set_curr_insn_source_location): Don't avoid bouncing.
(get_curr_insn_source_location): New.
(get_curr_insn_block): New.
(duplicate_insn_chain): Handle debug insns.
* tree-ssa-forwprop.c (forward_propagate_addr_expr): Propagate
into debug stmts.
* common.opt (fcompare-debug): Move to sort order.
(fdump-unnumbered-links): Likewise.
(fvar-tracking-assignments): New.
(fvar-tracking-assignments-toggle): New.
* tree-ssa-dce.c (mark_stmt_necessary): Don't mark blocks
because of debug stmts.
(mark_stmt_if_obviously_necessary): Mark debug stmts.
(eliminate_unnecessary_stmts): Walk dominated blocks before
dominators.
* tree-ssa-ter.c (find_replaceable_in_bb): Skip debug stmts.
* ira.c (memref_used_between_p): Skip debug insns.
(update_equiv_regs): Likewise.
* sched-deps.c (sd_lists_size): Accept empty list.
(sd_init_insn): Mark debug insns.
(sd_finish_insn): Unmark them.
(sd_add_dep): Reject non-debug deps on debug insns.
(fixup_sched_groups): Give debug insns group treatment.
Skip debug insns.
(sched_analyze_reg): Don't mark debug insns for sched before call.
(sched_analyze_2): Handle debug insns.
(sched_analyze_insn): Compute next non-debug insn.  Handle debug
insns.
(deps_analyze_insn): Handle debug insns.
(deps_start_bb): Skip debug insns.
(init_deps): Initialize last_debug_insn.
* tree-ssa.c (target_for_debug_bind): New.
(find_released_ssa_name): New.
(propagate_var_def_into_debug_stmts): New.
(propagate_defs_into_debug_stmts): New.
(verify_ssa): Skip debug bind stmts without values.
(warn_uninialized_vars): Skip debug stmts.
* target-def.h (TARGET_DELEGITIMIZE_ADDRESS): Set default.
* rtl.c (rtx_equal_p_cb): Handle VALUEs.
(rtx_equal_p): Likewise.
* ira-costs.c (scan_one_insn): Skip debug insns.
(process_bb_node_for_hard_reg_moves): Likewise.
* rtl.h (DEBUG_INSN_P): New.
(NONDEBUG_INSN_P): New.
(MAY_HAVE_DEBUG_INSNS): New.
(INSN_P): Accept debug insns.
(RTX_FRAME_RELATED_P): Likewise.
(INSN_DELETED_P): Likewise
(PAT_VAR_LOCATION_DECL): New.
(PAT_VAR_LOCATION_LOC): New.
(PAT_VAR_OCATION_STATUS): New.
(NOTE_VAR_LOCATION_DECL): Reimplement.
(NOTE_VAR_LOCATION_LOC): Likewise.
(NOTE_VAR_LOCATION_STATUS): Likewise.
(INSN_VAR_LOCATION): New.
(INSN_VAR_LOCATION_DECL): New.
(INSN_VAR_LOCATION_LOC): New.
(INSN_VAR_LOCATION_STATUS): New.
(gen_rtx_UNKNOWN_VAR_LOC): New.
(VAR_LOC_UNKNOWN_P): New.
(NOTE_DURING_CALL_P): New.
(SCHED_GROUP_P): Accept debug insns.
(emit_debug_insn_before): Declare.
(emit_debug_insn_before_noloc): Declare.
(emit_debug_insn_beore_setloc): Declare.
(emit_debug_insn_after): Declare.
(emit_debug_insn_after_noloc): Declare.
(emit_debug_insn_after_setloc): Declare.
(emit_debug_insn): Declare.
(make_debug_insn_raw): Declare.
(prev_nondebug_insn): Declare.
(next_nondebug_insn): Declare.
(delegitimize_mem_from_attrs): Declare.
(get_max_insn_count): Declare.
(wrap_constant): Declare.
(unwrap_constant): Declare.
(get_curr_insn_source_location): Declare.
(get_curr_insn_block): Declare.
* tree-inline.c (insert_debug_decl_map): New.
(processing_debug_stmt): New.
(remap_decl): Don't create new mappings in debug stmts.
(remap_gimple_op_r): Don't add references in debug stmts.
(copy_tree_body_r): Likewise.
(remap_gimple_stmt): Handle debug bind stmts.
(copy_bb): Skip debug stmts.
(copy_edges_for_bb): Likewise.
(copy_debug_stmt): New.
(copy_debug_stmts): New.
(copy_body): Copy debug stmts at the end.
(insert_init_debug_bind): New.
(insert_init_stmt): Take id.  Skip and emit debug stmts.
(setup_one_parameter): Remap variable earlier, register debug
mapping.
(estimate_num_insns): Skip debug stmts.
(expand_call_inline): Preserve debug_map.
(optimize_inline_calls): Check for no debug_stmts left-overs.
(unsave_expr_now): Preserve debug_map.
(copy_gimple_seq_and_replace_locals): Likewise.
(tree_function_versioning): Check for no debug_stmts left-overs.
Init and destroy debug_map as needed.  Split edges unconditionally.
(build_duplicate_type): Init and destroy debug_map as needed.
* tree-inline.h: Include gimple.h instead of pointer-set.h.
(struct copy_body_data): Add debug_stmts and debug_map.
* sched-int.h (struct ready_list): Add n_debug.
(struct deps): Add last_debug_insn.
(DEBUG_INSN_SCHED_P): New.
(BOUNDARY_DEBUG_INSN_P): New.
(SCHEDULE_DEBUG_INSN_P): New.
(sd_iterator_cond): Accept empty list.
* combine.c (create_log_links): Skip debug insns.
(combine_instructions): Likewise.
(cleanup_auto_inc_dec): New.  From Jakub Jelinek: Make sure the
return value is always unshared.
(struct rtx_subst_pair): New.
(auto_adjust_pair): New.
(propagate_for_debug_subst): New.
(propagate_for_debug): New.
(try_combine): Skip debug insns.  Propagate removed defs into
debug insns.
(next_nonnote_nondebug_insn): New.
(distribute_notes): Use it.  Skip debug insns.
(distribute_links): Skip debug insns.
* tree-outof-ssa.c (set_location_for_edge): Likewise.
* resource.c (mark_target_live_regs): Likewise.
* var-tracking.c: Include cselib.h and target.h.
(enum micro_operation_type): Add MO_VAL_USE, MO_VAL_LOC, and
MO_VAL_SET.
(micro_operation_type_name): New.
(enum emit_note_where): Add EMIT_NOTE_AFTER_CALL_INSN.
(struct micro_operation_def): Update comments.
(decl_or_value): New type.  Use instead of decls.
(struct emit_note_data_def): Add vars.
(struct attrs_def): Use decl_or_value.
(struct variable_tracking_info_def): Add permp, flooded.
(struct location_chain_def): Update comment.
(struct variable_part_def): Use decl_or_value.
(struct variable_def): Make var_part a variable length array.
(valvar_pool): New.
(scratch_regs): New.
(cselib_hook_called): New.
(dv_is_decl_p): New.
(dv_is_value_p): New.
(dv_as_decl): New.
(dv_as_value): New.
(dv_as_opaque): New.
(dv_onepart_p): New.
(dv_pool): New.
(IS_DECL_CODE): New.
(check_value_is_not_decl): New.
(dv_from_decl): New.
(dv_from_value): New.
(dv_htab_hash): New.
(variable_htab_hash): Use it.
(variable_htab_eq): Support values.
(variable_htab_free): Free from the right pool.
(attrs_list_member, attrs_list_insert): Use decl_or_value.
(attrs_list_union): Adjust.
(attrs_list_mpdv_union): New.
(tie_break_pointers): New.
(canon_value_cmp): New.
(unshare_variable): Return possibly-modified slot.
(vars_copy_1): Adjust.
(var_reg_decl_set): Adjust.  Split out of...
(var_reg_set): ... this.
(get_init_value): Adjust.
(var_reg_delete_and_set): Adjust.
(var_reg_delete): Adjust.
(var_regno_delete): Adjust.
(var_mem_decl_set): Split out of...
(var_mem_set): ... this.
(var_mem_delete_and_set): Adjust.
(var_mem_delete): Adjust.
(val_store): New.
(val_reset): New.
(val_resolve): New.
(variable_union): Adjust.  Speed up merge of 1-part vars.
(variable_canonicalize): Use unshared slot.
(VALUED_RECURSED_INTO): New.
(find_loc_in_1pdv): New.
(struct dfset_merge): New.
(insert_into_intersection): New.
(intersect_loc_chains): New.
(loc_cmp): New.
(canonicalize_loc_order_check): New.
(canonicalize_values_mark): New.
(canonicalize_values_star): New.
(variable_merge_over_cur): New.
(variable_merge_over_src): New.
(dataflow_set_merge): New.
(dataflow_set_equiv_regs): New.
(remove_duplicate_values): New.
(struct dfset_post_merge): New.
(variable_post_merge_new_vals): New.
(variable_post_merge_perm_vals): New.
(dataflow_post_merge_adjust): New.
(find_mem_expr_in_1pdv): New.
(dataflow_set_preserve_mem_locs): New.
(dataflow_set_remove_mem_locs): New.
(dataflow_set_clear_at_call): New.
(onepart_variable_different_p): New.
(variable_different_p): Use it.
(dataflow_set_different_1): Adjust.  Make detailed dump
more verbose.
(track_expr_p): Add need_rtl parameter.  Don't generate rtl
if not needed.
(track_loc_p): Pass it true.
(struct count_use_info): New.
(find_use_val): New.
(replace_expr_with_values): New.
(log_op_type): New.
(use_type): New, partially split out of...
(count_uses): ... this.  Count new micro-ops.
(count_uses_1): Adjust.
(count_stores): Adjust.
(count_with_sets): New.
(VAL_NEEDS_RESOLUTION): New.
(VAL_HOLDS_TRACK_EXPR): New.
(VAL_EXPR_IS_COPIED): New.
(VAL_EXPR_IS_CLOBBERED): New.
(add_uses): Adjust.  Generate new micro-ops.
(add_uses_1): Adjust.
(add_stores): Generate new micro-ops.
(add_with_sets): New.
(find_src_status): Adjust.
(find_src_set_src): Adjust.
(compute_bb_dataflow): Use dataflow_set_clear_at_call.
Handle new micro-ops.  Canonicalize value equivalances.
(vt_find_locations): Compute total size of hash tables for
dumping.  Perform merge for var-tracking-assignments.  Don't
disregard single-block loops.
(dump_attrs_list): Handle decl_or_value.
(dump_variable): Take variable.  Deal with decl_or_value.
(dump_variable_slot): New.
(dump_vars): Use it.
(dump_dataflow_sets): Adjust.
(set_slot_part): New, extended to support one-part variables
after splitting out of...
(set_variable_part): ... this.
(clobber_slot_part): New, split out of...
(clobber_variable_part): ... this.
(delete_slot_part): New, split out of...
(delete_variable_part): .... this.
(check_wrap_constant): New.
(vt_expand_loc_callback): New.
(vt_expand_loc): New.
(emit_note_insn_var_location): Adjust.  Handle values.  Handle
EMIT_NOTE_AFTER_CALL_INSN.
(emit_notes_for_differences_1): Adjust.  Handle values.
(emit_notes_for_differences_2): Likewise.
(emit_notes_for_differences): Adjust.
(emit_notes_in_bb): Take pointer to set.  Emit AFTER_CALL_INSN
notes.  Adjust.  Handle new micro-ops.
(vt_add_function_parameters): Adjust.  Create and bind values.
(vt_initialize): Adjust.  Initialize scratch_regs and
valvar_pool, flooded and perm..  Initialize and use cselib.  Log
operations.  Move some code to count_with_sets and add_with_sets.
(delete_debug_insns): New.
(vt_debug_insns_local): New.
(vt_finalize): Release permp, valvar_pool, scratch_regs.  Finish
cselib.
(var_tracking_main): If var-tracking-assignments is enabled
but var-tracking isn't, delete debug insns and leave.  Likewise
if we exceed limits or fail the stack adjustments tests, and
after all var-tracking processing.
More in var-tracking, from Jakub Jelinek <jakub@redhat.com>:
(dataflow_set): Add traversed_vars.
(value_chain, const_value_chain): New typedefs.
(value_chain_pool, value_chains): New variables.
(value_chain_htab_hash, value_chain_htab_eq, add_value_chain,
add_value_chains, add_cselib_value_chains, remove_value_chain,
remove_value_chains, remove_cselib_value_chains): New functions.
(shared_hash_find_slot_unshare_1, shared_hash_find_slot_1,
shared_hash_find_slot_noinsert_1, shared_hash_find_1): New
static inlines.
(shared_hash_find_slot_unshare, shared_hash_find_slot,
shared_hash_find_slot_noinsert, shared_hash_find): Update.
(dst_can_be_shared): New variable.
(unshare_variable): Unshare set->vars if shared, use shared_hash_*.
Clear dst_can_be_shared.  If set->traversed_vars is non-NULL and
different from set->vars, look up slot again instead of using the
passed in slot.
(dataflow_set_init): Initialize traversed_vars.
(variable_union): Use shared_hash_*.  Use initially NO_INSERT
lookup if set->vars is shared.  Don't keep slot cleared before
calling unshare_variable.  Unshare set->vars if needed.  Adjust
unshare_variable callers.  Clear dst_can_be_shared if needed.
Even ->refcount == 1 vars must be unshared if set->vars is shared
and var needs to be modified.
(dataflow_set_union): Set traversed_vars during canonicalization.
(VALUE_CHANGED, DECL_CHANGED): Define.
(set_dv_changed, dv_changed_p): New static inlines.
(track_expr_p): Clear DECL_CHANGED.
(dump_dataflow_sets): Set it.
(variable_was_changed): Call set_dv_changed.
(emit_note_insn_var_location): Likewise.
(changed_variables_stack): New variable.
(check_changed_vars_1, check_changed_vars_2): New functions.
(emit_notes_for_changes): Do nothing if changed_variables is
empty.  Traverse changed_variables with check_changed_vars_1,
call check_changed_vars_2 on each changed_variables_stack entry.
(emit_notes_in_bb): Add SET argument.  Just clear it at the
beginning, use it instead of local &set, don't destroy it at the
end.
(vt_emit_notes): Call dataflow_set_clear early on all
VTI(bb)->out sets, never use them, instead use emit_notes_in_bb
computed set, dataflow_set_clear also VTI(bb)->in when we are
done with the basic block.  Initialize changed_variables_stack,
free it afterwards.  If ENABLE_CHECKING verify that after noting
differences to an empty set value_chains hash table is empty.
(vt_initialize): Initialize value_chains and value_chain_pool.
(vt_finalize): Delete value_chains htab, free value_chain_pool.
(variable_tracking_main): Call dump_dataflow_sets before calling
vt_emit_notes, not after it.
* tree-flow.h (propagate_defs_into_debug_stmts): Declare.
(propagate_var_def_into_debug_stmts): Declare.
* df-problems.c (df_lr_bb_local_compute): Skip debug insns.
(df_set_note): Reject debug insns.
(df_whole_mw_reg_dead_p): Take added_notes_p argument.  Don't
add notes to debug insns.
(df_note_bb_compute): Adjust.  Likewise.
(df_simulate_uses): Skip debug insns.
(df_simulate_initialize_backwards): Likewise.
* reg-stack.c (subst_stack_regs_in_debug_insn): New.
(subst_stack_regs_pat): Reject debug insns.
(convert_regs_1): Handle debug insns.
* Makefile.in (TREE_INLINE_H): Take pointer-set.h from GIMPLE_H.
(print-rtl.o): Depend on cselib.h.
(cselib.o): Depend on TREE_PASS_H.
(var-tracking.o): Depend on cselib.h and TARGET_H.
* sched-rgn.c (rgn_estimate_number_of_insns): Discount
debug insns.
(init_ready_list): Skip boundary debug insns.
(add_branch_dependences): Skip debug insns.
(free_block_dependencies): Check for blocks with only debug
insns.
(compute_priorities): Likewise.
* gimple.c (gss_for_code): Handle GIMPLE_DEBUG.
(gimple_build_with_ops_stat): Take subcode as unsigned.  Adjust
all callers.
(gimple_build_debug_bind_stat): New.
(empty_body_p): Skip debug stmts.
(gimple_has_side_effects): Likewise.
(gimple_rhs_has_side_effects): Likewise.
* gimple.h (enum gimple_debug_subcode, GIMPLE_DEBUG_BIND): New.
(gimple_build_debug_bind_stat): Declare.
(gimple_build_debug_bind): Define.
(is_gimple_debug): New.
(gimple_debug_bind_p): New.
(gimple_debug_bind_get_var): New.
(gimple_debug_bind_get_value): New.
(gimple_debug_bind_get_value_ptr): New.
(gimple_debug_bind_set_var): New.
(gimple_debug_bind_set_value): New.
(GIMPLE_DEBUG_BIND_NOVALUE): New internal temporary macro.
(gimple_debug_bind_reset_value): New.
(gimple_debug_bind_has_value_p): New.
(gsi_next_nondebug): New.
(gsi_prev_nondebug): New.
(gsi_start_nondebug_bb): New.
(gsi_last_nondebug_bb): New.
* sched-vis.c (print_pattern): Handle VAR_LOCATION.
(print_insn): Handle DEBUG_INSN.
* tree-cfg.c (remove_bb): Walk stmts backwards.  Let loc
of first insn prevail.
(first_stmt): Skip debug stmts.
(first_non_label_stmt): Likewise.
(last_stmt): Likewise.
(has_zero_uses_1): New.
(single_imm_use_1): New.
(verify_gimple_debug): New.
(verify_types_in_gimple_stmt): Handle debug stmts.
(verify_stmt): Likewise.
(debug_loop_num): Skip debug stmts.
(remove_edge_and_dominated_blocks): Remove dominators last.
* tree-ssa-reasssoc.c (rewrite_expr_tree): Propagate into
debug stmts.
(linearize_expr): Likewise.
* config/i386/i386.c (ix86_delegitimize_address): Call
default implementation.
* config/ia64/ia64.c (ia64_safe_itanium_class): Handle debug
insns.
(group_barrier_needed): Skip debug insns.
(emit_insn_group_barriers): Likewise.
(emit_all_insn_group_barriers): Likewise.
(ia64_variable_issue): Handle debug insns.
(ia64_dfa_new_cycle): Likewise.
(final_emit_insn_group_barriers): Skip debug insns.
(ia64_dwarf2out_def_steady_cfa): Take frame argument.  Don't
def cfa without frame.
(process_set): Likewise.
(process_for_unwind_directive): Pass frame on.
* config/rs6000/rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Define.
(rs6000_delegitimize_address): New.
(rs6000_debug_adjust_cost): Handle debug insns.
(is_microcoded_insn): Likewise.
(is_cracked_insn): Likewise.
(is_nonpipeline_insn): Likewise.
(insn_must_be_first_in_group): Likewise.
(insn_must_be_last_in_group): Likewise.
(force_new_group): Likewise.
* cfgrtl.c (rtl_split_block): Emit INSN_DELETED note if block
contains only debug insns.
(rtl_merge_blocks): Skip debug insns.
(purge_dead_edges): Likewise.
(rtl_block_ends_with_call_p): Skip debug insns.
* dce.c (deletable_insn_p): Handle VAR_LOCATION.
(mark_reg_dependencies): Skip debug insns.
* params.def (PARAM_MIN_NONDEBUG_INSN_UID): New.
* tree-ssanames.c (release_ssa_name): Propagate def into
debug stmts.
* tree-ssa-threadedge.c
(record_temporary_equivalences_from_stmts): Skip debug stmts.
* regcprop.c (replace_oldest_value_addr): Skip debug insns.
(replace_oldest_value_mem): Use ALL_REGS for debug insns.
(copyprop_hardreg_forward_1): Handle debug insns.
* reload1.c (reload): Skip debug insns.  Replace unassigned
pseudos in debug insns with their equivalences.
(eliminate_regs_in_insn): Skip debug insns.
(emit_input_reload_insns): Skip debug insns at first, adjust
them later.
* tree-ssa-operands.c (add_virtual_operand): Reject debug stmts.
(get_indirect_ref_operands): Pass opf_no_vops on.
(get_expr_operands): Likewise.  Skip debug stmts.
(parse_ssa_operands): Scan debug insns with opf_no_vops.
gcc/testsuite/ChangeLog:
* gcc.dg/guality/guality.c: New.
* gcc.dg/guality/guality.h: New.
* gcc.dg/guality/guality.exp: New.
* gcc.dg/guality/example.c: New.
* lib/gcc-dg.exp (cleanup-dump): Remove .gk files.
(cleanup-saved-temps): Likewise, .gkd files too.
gcc/cp/ChangeLog:
* cp-tree.h (TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS): New.
* cp-lang.c (cxx_dwarf_name): Pass it.
* error.c (count_non_default_template_args): Take flags as
argument.  Adjust all callers.  Skip counting of default
arguments if the new flag is given.
ChangeLog:
* Makefile.tpl (BUILD_CONFIG): Default to bootstrap-debug.
* Makefile.in: Rebuilt.
contrib/ChangeLog:
* compare-debug: Look for .gkd files and compare them.
config/ChangeLog:
* bootstrap-debug.mk: Add comments.
* bootstrap-debug-big.mk: New.
* bootstrap-debug-lean.mk: New.
* bootstrap-debug-ckovw.mk: Add comments.
* bootstrap-debug-lib.mk: Drop CFLAGS for stages.  Use -g0
for TFLAGS in stage1.  Drop -fvar-tracking-assignments-toggle.

From-SVN: r151311
2009-09-02 02:41:47 +00:00
Ralf Wildenhues
5213506e24 Regenerate tree using Autoconf 2.64 and Automake 1.11.
config/:
	* override.m4 (_GCC_AUTOCONF_VERSION): Bump to 2.64.

:
	* configure: Regenerate.

intl/:
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.

libiberty/:
	* config.in: Regenerate.
	* configure: Regenerate.

boehm-gc/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* include/Makefile.in: Regenerate.
	* include/gc_config.h.in: Regenerate.

fixincludes/:
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.

gcc/:
	* aclocal.m4: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

libgcc/:
	* configure: Regenerate.

gnattools/:
	* configure: Regenerate.

libada/:
	* configure: Regenerate.

libcpp/:
	* aclocal.m4: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

libdecnumber/:
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* config.in: Regenerate.

libffi/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* fficonfig.h.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* man/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

libgfortran/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.

libgomp/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

libjava/classpath/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* doc/api/Makefile.in: Regenerate.
	* examples/Makefile.in: Regenerate.
	* external/Makefile.in: Regenerate.
	* external/jsr166/Makefile.in: Regenerate.
	* external/relaxngDatatype/Makefile.in: Regenerate.
	* external/sax/Makefile.in: Regenerate.
	* external/w3c_dom/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* include/config.h.in: Regenerate.
	* lib/Makefile.in: Regenerate.
	* native/Makefile.in: Regenerate.
	* native/fdlibm/Makefile.in: Regenerate.
	* native/jawt/Makefile.in: Regenerate.
	* native/jni/Makefile.in: Regenerate.
	* native/jni/classpath/Makefile.in: Regenerate.
	* native/jni/gconf-peer/Makefile.in: Regenerate.
	* native/jni/gstreamer-peer/Makefile.in: Regenerate.
	* native/jni/gtk-peer/Makefile.in: Regenerate.
	* native/jni/java-io/Makefile.in: Regenerate.
	* native/jni/java-lang/Makefile.in: Regenerate.
	* native/jni/java-math/Makefile.in: Regenerate.
	* native/jni/java-net/Makefile.in: Regenerate.
	* native/jni/java-nio/Makefile.in: Regenerate.
	* native/jni/java-util/Makefile.in: Regenerate.
	* native/jni/midi-alsa/Makefile.in: Regenerate.
	* native/jni/midi-dssi/Makefile.in: Regenerate.
	* native/jni/native-lib/Makefile.in: Regenerate.
	* native/jni/qt-peer/Makefile.in: Regenerate.
	* native/jni/xmlj/Makefile.in: Regenerate.
	* native/plugin/Makefile.in: Regenerate.
	* resource/Makefile.in: Regenerate.
	* scripts/Makefile.in: Regenerate.
	* tools/Makefile.in: Regenerate.

libjava/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* gcj/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* include/config.h.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

libjava/libltdl/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config-h.in: Regenerate.
	* configure: Regenerate.

libmudflap/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

libobjc/:
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.

libssp/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.

libstdc++-v3/:
	* Makefile.in: Regenerate.
	* acinclude.m4: Regenerate.
	* aclocal.m4: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

zlib/:
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

From-SVN: r151014
2009-08-22 13:22:20 +00:00
Ralf Wildenhues
0115d4a36f Disable option checking in the toplevel, avoid 2.64 fopen glitch.
/:
	* configure.ac: Call AC_DISABLE_OPTION_CHECKING.
	(baseargs): Add --disable-option-checking.
	* configure: Regenerate.

config/:
	* override.m4 (AC_DISABLE_OPTION_CHECKING): Define to be
	empty if not defined, to avoid error with 2.59.
	(_AC_LANG_IO_PROGRAM): When the Autoconf version is exactly
	2.64, avoid per-language instances to drop fopen from test
	program.

From-SVN: r150945
2009-08-19 22:19:37 +00:00
Ralf Wildenhues
c936f0d576 Sync config/ChangeLog from src.
From-SVN: r150799
2009-08-16 12:47:57 +00:00
Ralf Wildenhues
1b3b24c2a6 extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Do not expand for Autoconf 2.62 or newer.
config/
	* extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Do not expand
	for Autoconf 2.62 or newer.
	* tls.m4 (GCC_CHECK_TLS): Fix m4 quotation.
	* no-executables.m4 (_AC_COMPILER_EXEEXT): Fix m4 quotation.
	* override.m4 (m4_copy_force, m4_rename_force): Provide
	macros if not defined.
	(AC_PREREQ): Use m4_copy_force.

boehm-gc/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libada/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libffi/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libgfortran/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libgomp/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libjava/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libmudflap/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libobjc/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libssp/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

zlib/
	* configure.ac (_AC_ARG_VAR_PRECIOUS): Use m4_rename_force.

libstdc++-v3/
	* acinclude.m4 (GLIBCXX_CONFIGURE): Use m4_rename_force.

From-SVN: r150269
2009-07-30 19:41:13 +00:00
Joseph Myers
e7d5b5b9c4 re PR other/40784 (Revision 149725 caused autoconf warning in libstdc++)
PR other/40784
config:
	* tls.m4 (GCC_CHECK_TLS): Add extra quoting around argument to
	AC_LINK_IFELSE.

libjava:
	* configure: Regenerate.

libstdc++-v3:
	* configure: Regenerate.

From-SVN: r149748
2009-07-17 16:08:36 +01:00
Joseph Myers
396b7fa48a tls.m4 (GCC_CHECK_TLS): Also test TLS in a shared library when cross-compiling.
config:
	* tls.m4 (GCC_CHECK_TLS): Also test TLS in a shared library when
	cross-compiling.

libgomp:
	* configure: Regenerate.

libjava:
	* configure: Regenerate.

libmudflap:
	* configure: Regenerate.

libstdc++-v3:
	* configure: Regenerate.

From-SVN: r149725
2009-07-17 00:18:08 +01:00
Olivier Hainque
b192f8291a mh-ppc-aix (BOOT_ADAFLAGS): Remove -mminimal-toc.
* config/mh-ppc-aix (BOOT_ADAFLAGS): Remove -mminimal-toc.

From-SVN: r148942
2009-06-25 12:10:04 +00:00
Rafael Avila de Espindola
ed63087975 (Synchronize with addition made to binutils sources):
* plugins.m4: New.

From-SVN: r147918
2009-05-27 16:31:26 +00:00
Alexandre Oliva
4a4a4e9933 re PR target/37137 (unrecognized command line option "-minterlink-mips16")
ChangeLog:
PR target/37137
* Makefile.def (flags_to_pass): Remove redundant and incomplete
STAGE1_CFLAGS, STAGE2_CFLAGS, STAGE3_CFLAGS, and STAGE4_CFLAGS.
Add FLAGS_FOR_TARGET and BUILD_CONFIG.
(bootstrap_stage): Remove bootstrap-debug custom stages.  Turn
stage_configureflags, stage_cflags and stage_libcflags into
explicit Makefile macros.
* Makefile.tpl (HOST_EXPORTS, EXTRA_HOST_FLAGS): Pass GCJ and
GFORTRAN.
(POSTSTAGE1_HOST_EXPORTS): Add XGCC_FLAGS_FOR_TARGET and TFLAGS to
CC.  Set CC_FOR_BUILD from CC.
(BASE_TARGET_EXPORTS, RAW_CXX_TARGET_EXPORTS,
NORMAL_TARGET_EXPORTS): Move SYSROOT_CFLAGS_FOR_TARGET and
DEBUG_PREFIX_CFLAGS_FOR_TARGET from CFLAGS and CXXFLAGS to
XGCC_FLAGS_FOR_TARGET.  Add it along with TFLAGS to CC, CXX, GCJ,
and GFORTRAN.
(TFLAGS, STAGE_CFLAGS, STAGE_TFLAGS, STAGE_CONFIGURE_FLAGS): New.
(_LIBCFLAGS): Renamed to _TFLAGS.
(do-compare-debug, do-compare3-debug): Drop.
(CC, GCC_FOR_TARGET, CXX_FOR_TARGET, RAW_CXX_FOR_TARGET,
GCJ_FOR_TARGET, GFORTRAN_FOR_TARGET): Remove FLAGS_FOR_TARGET.
(FLAGS_FOR_TARGET, SYSROOT_CFLAGS_FOR_TARGET,
DEBUG_PREFIX_CFLAGS_FOR_TARGET): Move down.
(XGCC_FLAGS_FOR_TARGET): New.
(BASE_FLAGS_TO_PASS): Pass STAGEid_CFLAGS, STAGEid_TFLAGS and TFLAGS.
(EXTRA_HOST_FLAGS): Pass GCJ and GFORTRAN.
(POSTSTAGE1_FLAGS_TO_PASS): Move SYSROOT_CFLAGS_FOR_TARGET and
DEBUG_PREFIX_CFLAGS_FOR_TARGET from CFLAGS, CXXFLAGS, LIBCFLAGS,
LIBCXXFLAGS to XGCC_FLAGS_FOR_TARGET.    Add it along with TFLAGS
to CC, CXX, GCJ, and GFORTRAN.  Pass XGCC_FLAGS_FOR_TARGET and
TFLAGS.
(BUILD_CONFIG): Include if requested.
(all): Set TFLAGS on bootstrap.
(configure-stageid-prefixmodule): Pass TFLAGS, adjust FLAGS.
(all-stageid-prefixmodule): Likewise.
(do-clean, distclean-stageid): Set TFLAGS.
(restrap): Fix whitespace.
* Makefile.in: Rebuilt.
config/ChangeLog:
* multi.m4: Save CXX, GFORTRAN and GCJ in config.status.
* mt-gnu (CXXFLAGS_FOR_TARGET): Adjust.
* bootstrap-O1.mk: New.
* bootstrap-O3.mk: New.
* bootstrap-debug.mk: New.
gcc/ChangeLog:
PR target/37137
* doc/install.texi (STAGE1_TFLAGS, BUILD_CONFIG): Document.
gcc/java/ChangeLog:
* Make-lang.in (GCJ): Renamed to...
(XGCJ): ... this.
libjava/ChangeLog:
* configure.ac: Insert libgcjdir in the GCJ passed in the
environment, rather than overriding completely.
* configure: Rebuilt.

From-SVN: r147415
2009-05-12 05:49:28 +00:00
Paolo Bonzini
1cee34299e [multiple changes]
2009-05-07  Paolo Bonzini  <bonzini@gnu.org>

	* config.guess: Sync with src.

config:
2009-05-07  Paolo Bonzini

	Sync from src:
	2009-02-02  Doug Evans  <dje@google.com>

	* tcl.m4 (SC_PATH_TCLCONFIG): Don't exit 0 if tclconfig fails.
	(SC_PATH_TKCONFIG): Don't exit 0 if tkconfig fails.
	(SC_LOAD_TCLCONFIG): Quote all uses of TCL_BIN_DIR, it may contain
	"# no Tcl configs found".
	(SC_LOAD_TKCONFIG): Similarily for TK_BIN_DIR.

From-SVN: r147225
2009-05-07 08:36:43 +00:00
Jakub Jelinek
748086b7b2 Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception.
From-SVN: r145841
2009-04-09 17:00:19 +02:00
Kai Tietz
3a24ac1d39 mh-cygwin (LDFLAGS): Add linker option to increase stack limit up to 8MB.
2009-02-11  Kai Tietz  <kai.tietz@onevision.com>

        * mh-cygwin (LDFLAGS): Add linker option to increase stack limit
        up to 8MB.

From-SVN: r144099
2009-02-11 11:50:50 +01:00
Jie Zhang
5cf9cc965f mf-impl.h (__mf_get_state, [...]): Don't use __thread when TLS support is emulated.
libmudflap/
	* mf-impl.h (__mf_get_state, __mf_set_state): Don't use
	__thread when TLS support is emulated.
	* mf-hooks3.c (__mf_get_state, __mf_set_state): Likewise.
	* mf-runtime.c (__mf_state_1): Likewise.
	* configure.ac: Use GCC_CHECK_EMUTLS.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	config/
	* tls.m4 (GCC_CHECK_EMUTLS): Define.

From-SVN: r143583
2009-01-23 04:58:03 +00:00
Andrew Pinski
a0e0204117 Index...
Index: config/ChangeLog
+2008-12-21  Andrew Pinski  <pinskia@gmail.com>
+
+       PR target/38300
+       * unwind_ipinfo.m4: Darwin before 9 does not have _Unwind_GetIPInfo.
+
Index: gcc/ChangeLog
+2008-12-21  Andrew Pinski  <pinskia@gmail.com>
+
+       PR target/38300
+       * configure: Regenerate.
Index: libstdc++-v3/ChangeLog
+2008-12-21  Andrew Pinski  <pinskia@gmail.com>
+
+       PR target/38300
+       * configure: Regenerate.
+
Index: libjava/ChangeLog
+2008-12-21  Andrew Pinski  <pinskia@gmail.com>
+
+       PR target/38300
+       * configure: Regenerate.

From-SVN: r142877
2008-12-21 14:27:18 -08:00
Kai Tietz
da9014c049 Missed to check in changes to /config/mh-mingw.
Missed to check in changes to /config/mh-mingw. It is part of the reviewed
patch 2008/10/13 by Danny Smith.

2008-11-21  Kai Tietz  <kai.tietz@onevision.com>

        Fix PR/25502
        * mh-mingw (BOOT_CFLAGS): Add -Wno-pedantic-ms-format switch.

From-SVN: r142089
2008-11-21 14:54:41 +01:00
Steve Ellcey
bc3f0248dd re PR target/27880 (undefined reference to `_Unwind_GetIPInfo')
PR  target/27880
	* config/unwind_ipinfo.m4 (GCC_CHECK_UNWIND_GETIPINFO): Change from
	link test to target based test.
	* libstdc++/v3/configure.ac: Move call to GCC_CHECK_UNWIND_GETIPINFO.
	* libstdc++/v3/configure: Regenerate.
	* libjava/configure: Regenerate.

From-SVN: r141804
2008-11-12 21:35:46 +00:00
Paul Brook
aaf40205eb Move picochip directory to correct location.
From-SVN: r139934
2008-09-03 12:19:34 +00:00
Hari Sandanagobalane
358da97e4e Add picoChip port.
2008-09-03  Hari Sandanagobalane  <hariharan@picochip.com>

	Add picoChip port.
	* MAINTAINERS: Add picoChip maintainers.
	libgcc/
	* config.host: Add picochip-*-*.
	gcc/
	* doc/extend.texi: Document picoChip builtin functions.
	* doc/invoke.texi: Document picoChip options.
	* doc/contrib.texi: Add picoChip contribution.
	* doc/md.texi: Document picoChip constraints.
	* config.gcc: Add picochip-*-*.
	* config/picochip/: Add new port.

From-SVN: r139932
2008-09-03 12:10:49 +00:00
Richard Sandiford
08d0963a0e configure.ac (mips*-*-*linux*, [...]): Use mt-mips-gnu.
* configure.ac (mips*-*-*linux*, mips*-*-gnu*): Use mt-mips-gnu.
	* configure: Regenerate.

config/
	* mt-mips16-compat: New file, taken from mt-mips-elfoabi.
	* mt-mips-elfoabi: Include mt-mips16-compat.
	* mt-mips-gnu: New file.

gcc/
	* config.gcc (mips*-*-linux*, mips64*-*-linux*): Add
	mips/t-libgcc-mips16 to tmake_file.
	* config/mips/mips-protos.h (mips_call_type): New enum.
	(mips_pic_base_register, mips_got_load): Declare.
	(mips_restore_gp): Take an rtx argument.
	(mips_use_pic_fn_addr_reg_p): Declare.
	(mips_expand_call): Replace the sibcall_p argument with
	a mips_call_type argument.  Add a lazy_p parameter.
	(mips_split_call): Declare.
	* config/mips/mips.h (MIPS16_PIC_TEMP_REGNUM): New macro.
	(MIPS16_PIC_TEMP): Likewise.
	(reg_class): Delete M16_NA_REGS.
	(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
	(SYMBOL_FLAG_BIND_NOW, SYMBOL_REF_BIND_NOW_P): New macros.
	(mips_split_hi_p): Declare.
	* config/mips/mips.c (mips_split_hi_p): New array.
	(mips_regno_to_class): Change M16_NA_REGS entries to M16_REGS.
	(mips_got_symbol_type_p): New function.
	(mips_global_symbol_p): Check SYMBOL_REF_EXTERNAL_P.
	(mips16_stub_function_p): New function.
	(mips16_local_function_p): Likewise.
	(mips_use_pic_fn_addr_reg_p): Likewise.
	(mips_cannot_force_const_mem): Return false for HIGHs.
	Extend CONST_INT and symbolic handling to MIPS16, using
	mips_symbol_insns to check that the base symbol type is a
	legitimate constant.  Reject GOT-based constants if
	TARGET_MIPS16_PCREL_LOADS.
	(mips_const_insns): Check targetm.cannot_force_const_mem when
	decomposing a symbolic base and a large offset.
	(mips_emit_call_insn): Add ORIG_ADDR and ADDR parameters.
	When calling a function that needs $25 from MIPS16 code,
	move the target address into $25 separately and add a USE
	to the call insn.
	(mips16_gp_pseudo_reg): Insert the initializer immediately
	before the first real insn.
	(mips_pic_base_register, mips_got_load): New functions.
	(mips_split_symbol): Generalize the name of the LO_SUM_OUT
	parameter to LOW_OUT.  Say that it can be any valid SET_SRC
	when splitting a load-address operation.  Split SYMBOL_GOT_DISP
	constants and highs of SYMBOL_GOT_PAGE_OFST constants.
	(mips_call_tls_get_addr): Update the call to mips_expand_call,
	also passing NULL_RTX rather than const0_rtx as the aux argument.
	(mips_rewrite_small_data_p): Check mips_lo_relocs and mips_split_p
	instead of TARGET_EXPLICIT_RELOCS.
	(mips_ok_for_lazy_binding_p): Check SYMBOL_REF_BIND_NOW_P.
	(mips_load_call_address): Replace the sibcall_p argument with
	a mips_call_type argument.  Use mips_got_load.
	(mips16_local_alias): New structure.
	(mips16_local_aliases): New variable.
	(mips16_local_aliases_hash): New function.
	(mips16_local_aliases_eq): Likewise.
	(mips16_local_alias): Likewise.
	(mips16_stub_function): Likewise.
	(mips16_build_function_stub): Create a local alias for the target
	function.  Handle TARGET_ABICALLS.  For PIC abicalls, emit a
	.cpload directive and an R_MIPS_NONE relocation for the target
	function, then load the alias rather than the function itself.
	Wrap the non-PIC abicalls version in ".option pic0/.option pic2".
	(mips16_copy_fpr_return_value): Use mips16_stub_function and
	mips_expand_call.  Set SYMBOL_REF_BIND_NOW on the symbol.
	(mips16_build_call_stub): Replace the FN parameter with an
	FN_PTR parameter.  Force the address into a register if it
	isn't a call_insn_operand; don't rely on the caller to do this.
	If a call to a locally-defined and locally-binding MIPS16
	function must be made indirectly, redirect the call to the
	function's local alias.  Use mips16_stub_function_p,
	mips16_stub_function, mips_expand_call and use_reg.
	Set SYMBOL_FLAG_BIND_NOW on __mips_call_* symbols.
	Use explicit %hi and %lo accesses where possible.
	Use MIPS_CALL to generate the correct code form of a
	jal instruction.  Add clobbers of $18 instead of uses.
	Update the call to mips_emit_call_insn.
	(mips_expand_call): Replace the SIBCALL_P argument with a
	mips_call_type argument and handle the new MIPS_CALL_EPILOGUE value.
	Take a LAZY_P parameter.  Call mips16_build_call_stub first,
	allowing it to modify the call address.  Update the calls to
	mips_load_call_address and mips_emit_call_insn.
	(mips_split_call): New function.
	(mips_init_relocs): Clear mips_split_hi_p.  Only use %gp_rel if
	!TARGET_MIPS16.  Split SYMBOL_GOT_DISP, and the high parts of
	SYMBOL_GOT_PAGE_OFST, for MIPS16 code.
	(mips_global_pointer): Check mips16_cfun_returns_in_fpr_p.
	(mips_extra_live_on_entry): Include MIPS16_PIC_TEMP_REGNUM
	if TARGET_MIPS16.
	(mips_cprestore_slot): New function.
	(mips_restore_gp): Take a TEMP parameter.  Handle TARGET_MIPS16
	and use mips_cprestore_slot.
	(mips_output_function_prologue): Handle TARGET_MIPS16 for
	LOADGP_OLDABI.
	(mips_emit_loadgp): Move into MIPS16_PIC_TEMP for MIPS16,
	then use a copygp_mips16 instruction to set up $28.
	(mips_expand_prologue): Initialize the cprestore slot for MIPS16 too.
	(mips16_lay_out_constants): Call split_all_insns_noflow.
	(mips_reorg_process_insns): Explicitly set all_noreorder_p to
	false if TARGET_MIPS16.
	(mips_reorg): Don't call vr4130_align_insns if TARGET_MIPS16.
	(mips_output_mi_thunk): Use mips_got_symbol_type_p.  Use the
	mips_dangerous_for_la25_p approach for MIPS16 PIC calls too.
	(mips_set_mips16_mode): Always set MASK_EXPLICIT_RELOCS for
	MIPS16 code.  Allow MIPS16 o32 PIC.
	(mips_override_options): Allow MIPS16 o32 PIC.
	* config/mips/mips.md: Lower CONST_GP_P moves into register moves
	after reload if TARGET_USE_GOT.
	(UNSPEC_COPYGP): New constant.
	(length): Use a default length of 8 for MIPS16 GOT loads.
	(*got_disp<mode>): Check mips_split_p instead of TARGET_XGOT.
	(*got_page<mode>): Check mips_split_hi_p.
	(*got_disp<mode>, *got_page<mode>): Use mips_got_load.
	(unspec_got<mode>, unspec_call<mode>): New expanders.
	(load_got<mode>, load_call<mode>): Remove the length attributes.
	Use a got attribute instead of a type attribute.
	(copygp_mips16): New insn.
	(restore_gp): Add a scratch clobber and pass it to mips_restore_gp.
	(load_call<mode>): Use a "d" constraint instead of an "r" constraint.
	(sibcall, sibcall_value, call, call_value): Update the calls
	to mips_expand_call.
	(call_internal, call_value_internal): Use mips_split_call.
	(call_value_multiple_internal): Likewise.
	(call_split): Move after call_internal (the insn it is split from).
	(call_internal_direct, call_value_internal_direct): Turn into
	define_insn_and_splits.  Split if TARGET_SPLIT_CALLS.
	(call_direct_split, call_value_direct_split): New patterns.
	* config/mips/constraints.md (c): Handle TARGET_MIPS16 first
	and use M16_REGS instead of M16_NA_REGS.
	* config/mips/predicates.md (const_call_insn_operand): Replace
	the TARGET_ABSOLUTE_ABICALLS-based check with a more general
	mips_use_pic_fn_addr_reg_p check.
	(move_operand): Reject HIGHs if mips_split_hi_p.
	* config/mips/mips16.S: Assembly as empty if the ABI is not suitable.
	(__mips16_floatunsisf): Inline __mips16_floatsisf.
	(CALL_STUB_NO_RET, CALL_STUB_REG): Copy the target register to $25.
	* config/mips/libgcc-mips16.ver: New file.
	* config/mips/t-libgcc-mips16 (SHLIB_MAPFILES): Add
	$(srcdir)/config/mips/libgcc-mips16.ver.

gcc/testsuite/
	* lib/target-supports.exp (check_profiling_available): Return false
	for -p and -pg on MIPS16 targets.

From-SVN: r138912
2008-08-09 19:08:15 +00:00