Commit the vtable verification feature.  This feature is designed to
detect, at run time, if/when the vtable pointer in a C++ object has
been corrupted, before allowing virtual calls through that pointer. 
If pointer corruption is detected, execution of the program is halted.

libstdc++-v3 ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * fragment.am: Add XTEMPLATE_FLAGS.
        * configure.ac: Add definitions for --enable-vtable-verify.
        * acinclude.m4:  Add --enable-vtable-verify and
        --disable-vtable-verify; define --enable-vtable-verify; define
        VTV_CXXFLAGS, VTV_PCH_CXXFLAGS and VTV_CXXLINKFLAGS.
        * config/abi/pre/gnu.ver: Export symbols for vtable verification.
        * libsupc++/Makefile.am: Define vtv_sources and add it to
        libsupc___la_SOURCES and libsupc__convenience_la_SOURCES.
        * libsupc++/vtv_stubs.cc: New file.
        * include/Makefile.am: Add VTV_PCH_CXXFLAGS to PCHFLAGS.
        * src/Makefile.am: Add VTV_CXXFLAGS to AM_CXXFLAGS; add
        VTV_CXXLINKFLAGS to CXXLINK.
        * src/c++98/Makefile.am: Comment out XTEMPLATE_FLAGS; add VTV_CXXFLAGS
        to AM_CXXFLAGS; add VTV_CXXXLINKFLAGS to CXXLINK.
        * src/C++11/Makefile.am: Ditto.
        * doc/xml/manual/configure.xml: Add entry for --enable-vtable-verify.
        * scripts/testsuite_flags.in: Add cxxvtvflags to Usage; cause
        cxxvtvflags to use VTV_CXXFLAGS and VTV_CXXLINKFLAGS.
        * testsuite/lib/libstdc++.exp: Add cxxvtvflags; add code to locate
        libvtv if --enable-vtable-verify was used; set cxxvtvflags; add
        cxxvtvflags to cxx_final.
        * testsuite/18_support/bad_exception/23591_thread-1.c: Add
        -fvtable-verify=none to compiler flags.
        * testsuite/17_intro/freestanding.cc: Add -fvtable-verify=none
        to compiler flags.
        * configure: Regenerated.
        * Makefile.in: Regenerated.
        * python/Makefile.in: Regenerated.
        * include/Makefile.in: Regenerated.
        * libsupc++/Makefile.in: Regenerated.
        * config.h.in: Regenerated.
        * po/Makefile.in: Regenerated.
        * src/Makefile.in: Regenerated.
        * src/c++98/Makefile.in: Regenerated.
        * src/c++11/Makefile.in: Regenerated.
        * doc/Makefile.in: Regenerated.
        * testsuite/Makefile.in: Regenerated.

top level ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * configure.ac: Add target-libvtv to target_libraries; disable libvtv
        on non-linux systems; add target-libvtv to noconfigdirs; add
        libsupc++/.libs to C++ library search paths.
        * configure: Regenerated.
        * Makefile.def: Add libvtv to target_modules; make libvtv depend on
        libstdc++ and libgcc.
        * Makefile.in: Regenerated.

include/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * vtv-change-permission.h: New file.

contrib/ChangeLog:
2013-08-06  Caroline Tice4  <cmtice@google.com>

        * gcc_update: Add libvtv files.

libgcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        config.host (extra_parts): Add vtv_start.o, vtv_end.o
        vtv_start_preinit.o and vtv_end_preinit.o.
        configure.ac: Add code to check/set enable_vtable_verify.
        Makefile.in: Add rules to build vtv_*.o, if enable_vtable_verify is
        true.
        vtv_start_preinit.c: New file.
        vtv_end_preinit.c: New file.
        vtv_start.c: New file.
        vtv_end.c: New file.
        configure: Regenerated.

gcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * gcc.c (VTABLE_VERIFICATION_SPEC): New definition.
        (LINK_COMMAND_SPEC): Add VTABLE_VERIFICATION_SPEC.
        * tree-pass.h: Add pass_vtable_verify.
        * varasm.c (assemble_variable): Add code to properly set the comdat
        section and name for the .vtable_map_vars section.
        (assemble_vtyv_preinit_initializer): New function.
        (default_sectin_type_flags):  Make sure .vtable_map_vars section has
        LINK_ONCE flag.
        * output.h: Add function decl for assemble_vtv_preinit_initializer.
        * vtable-verify.c: New file.
        * vtable-verify.h: New file.
        * flag-types.h (enum vtv_priority): Defintions for flag_vtable_verify
        initialiation levels.
        * timevar.def (TV_VTABLE_VERIFICATION): New definition.
        * passes.def: Insert pass_vtable_verify.
        * aclocal.m4: Reorder includes.
        * doc/invoke.texi: Add documentation for the flags -fvtable-verify=,
	-fvtv-debug and -fvtv-counts.
        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add vtv_start*.o,
as appropriate, if -fvtable-verify=... is used.
        (GNU_USER_TARGET_ENDFILE_SPEC): Add vtv_end*.o as appropriate, if
        -fvtable-verify=... is used.
        * Makefile.in (OBJS):  Add vtable-verify.o to list.
        (vtable-verify.o): Add new build rule.
        (GTFILES): Add vtable-verify.c to list.
        * common.opt (fvtable-verify=): New flag.
        (vtv_priority): Values for fvtable-verify= flag.
        (fvtv-counts): New flag.
(fvtv-debug): New flag.
        * tree.h (save_vtable_map_decl): New extern function decl.


gcc/cp/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * Make-lang.in (*CXX_AND_OBJCXX_OBJS):  Add vtable-class-hierarchy.o to
        list.
        (vtable-class-hierarchy.o): Add build rule.
        * cp-tree.h (vtv_start_verification_constructor_init_function): New
        extern function decl.
        (vtv_finish_verification_constructor_init_function): New extern
        function decl.
        (build_vtbl_address): New extern function decl.
        (get_mangled_vtable_map_var_name): New extern function decl.
        (vtv_compute_class_hierarchy_transitive_closure): New extern function
        decl.
        (vtv_generate_init_routine): New extern function decl.
        (vtv_save_class_info): New extern function decl.
        (vtv_recover_class_info): New extern function decl.
        (vtv_build_vtable_verify_fndecl): New extern function decl.
        * class.c (finish_struct_1): Add call to vtv_save_class_info if
        flag_vtable_verify is true.
        * config-lang.in: Add vtable-class-hierarchy.c to gtfiles list.
        * vtable-class-hierarchy.c: New file.
        * mangle.c (get_mangled_vtable_map_var_name):  New function.
        * decl2.c (start_objects): Update function comment.
        (cp_write_global_declarations): Call vtv_recover_class_info,
        vtv_compute_class_hierarchy_transitive_closure and
        vtv_build_vtable_verify_fndecl, before calling
        finalize_compilation_unit, and call vtv_generate_init_rount after, IFF
        flag_vtable_verify is true.
        (vtv_start_verification_constructor_init_function): New function.
        (vtv_finish_verification_constructor_init_function): New function.
        * init.c (build_vtbl_address): Remove static qualifier from function.

libvtv/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        Initial check-in of new vtable verification feature.
        * configure.ac : New file.
        * acinclude.m4 : New file.
        * Makefile.am : New file.
        * aclocal.m4 : New file.
        * configure.tgt : New file.
        * configure: New file (generated).
        * Makefile.in: New file (generated).
        * vtv_set.h : New file.
        * vtv_utils.cc : New file.
        * vtv_utils.h : New file.
        * vtv_malloc.cc : New file.
        * vtv_rts.cc : New file.
        * vtv_malloc.h : New file.
        * vtv_rts.h : New file.
        * vtv_fail.cc : New file.
        * vtv_fail.h : New file.
        * vtv_map.h : New file.
        * scripts/run-testsuite.sh : New file.
        * scripts/sum-vtv-counts.c : New file.
        * testsuite/parts-test-main.h : New file.
        * testusite/dataentry.cc : New file.
        * testsuite/temp_deriv.cc : New file.
        * testsuite/register_pair.cc : New file.
        * testsuite/virtual_inheritance.cc : New file.
        * testsuite/field-test.cc : New file.
        * testsuite/nested_vcall_test.cc : New file.
        * testsuite/template-list-iostream.cc : New file.
        * testsuite/register_pair_inserts.cc : New file.
        * testsuite/register_pair_inserts_mt.cc : New file.
        * testsuite/event.list : New file.
        * testsuite/parts-test-extra-parts-views.cc : New file.
        * testsuite/parts-test-extra-parts-views.h : New file.
        * testsuite/environment-fail-32.s : New file.
        * testsuite/parts-test-extra-parts.h : New file.
        * testsuite/temp_deriv2.cc : New file.
        * testsuite/dlopen_mt.cc : New file.
        * testsuite/event.h : New file.
        * testsuite/template-list.cc : New file.
        * testsuite/replace-fail.cc : New file.
        * testsuite/Makefile.am : New file.
        * testsuite/Makefile.in: New file (generated).
        * testsuite/mempool_negative.c : New file.
        * testsuite/parts-test-main.cc : New file.
        * testsuite/event-private.cc : New file.
        * testsuite/thunk.cc : New file.
        * testsuite/event-defintiions.cc : New file.
        * testsuite/event-private.h : New file.
        * testsuite/parts-test.list : New file.
        * testusite/register_pair_mt.cc : New file.
        * testsuite/povray-derived.cc : New file.
        * testsuite/event-main.cc : New file.
        * testsuite/environment.cc : New file.
        * testsuite/template-list2.cc : New file.
        * testsuite/thunk_vtable_map_attack.cc : New file.
        * testsuite/parts-test-extra-parts.cc : New file.
        * testsuite/environment-fail-64.s : New file.
        * testsuite/dlopen.cc : New file.
        * testsuite/so.cc : New file.
        * testsuite/temp_deriv3.cc : New file.
        * testsuite/const_vtable.cc : New file.
        * testsuite/mempool_positive.c : New file.
        * testsuite/dup_name.cc : New file.

From-SVN: r201555

	* config/aarch64/sfp-machine.h, config/aarch64/sync-cache.c,
	* config/i386/cpuinfo.c, config/ia64/unwind-ia64.h,
	* config/mips/vr4120-div.S: Fix license from GPL-3.0+ to
	GPL-3.0-with-GCC-exception.

From-SVN: r201417

	* config/mips/mips16.S (DELAYf): Alias to DELAYt for the MIPS IV
	ISA and up.

From-SVN: r201350

2013-07-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/linux-unwind.h: Use the proper dwarf to hard reg
	mapping for FPRs when creating the fallback framestate.

From-SVN: r201156

gcc/
	PR target/57516
	* config/avr/avr-fixed.md (round<mode>3_const): Turn expander to insn.
	* config/avr/avr.md (adjust_len): Add `round'.
	* config/avr/avr-protos.h (avr_out_round): New prototype.
	(avr_out_plus): Add `out_label' argument.
	* config/avr/avr.c (avr_out_plus_1): Add `out_label' argument.
	(avr_out_plus): Pass down `out_label' to avr_out_plus_1.
	Handle the case where `insn' is just a pattern.
	(avr_out_bitop): Handle the case where `insn' is just a pattern.
	(avr_out_round): New function.
	(avr_adjust_insn_length): Handle ADJUST_LEN_ROUND.

libgcc/
	PR target/57516
	* config/avr/lib1funcs-fixed.S (__roundqq3, __rounduqq3)
	(__round_s2_const, __round_u2_const)
	(__round_s4_const, __round_u4_const, __round_x8):
	Saturate result if addition result cannot be represented.

gcc/testsuite/
	PR target/57516
	* gcc.target/avr/torture/builtins-4-roundfx.c (test2hr, test2k):
	Adjust to corrected rounding.

From-SVN: r201051

2013-07-15  Matthias Klose  <doko@ubuntu.com>

        * libgcc2.c: Don't include <limits.h>.

From-SVN: r200963

From-SVN: r200846

	PR target/29776
	* fold-const.c (tree_call_nonnegative_warnv_p): Return true
	for BUILT_IN_C{LZ,LRSB}*.
	* tree.h (CASE_INT_FN): Add FN##IMAX case.
	* tree-vrp.c (extract_range_basic): Handle
	BUILT_IN_{FFS,PARITY,POPCOUNT,C{LZ,TZ,LRSB}}*.  For
	BUILT_IN_CONSTANT_P if argument isn't (D) of PARM_DECL,
	fall thru to code calling set_value*.
	* builtins.c (expand_builtin): Remove *IMAX cases.
	(fold_builtin_bitop): For BUILT_IN_CLRSB* return NULL_TREE
	if width is bigger than 2*HWI.

	* libgcc2.c (__floattisf): Avoid undefined signed overflow.

	* gcc.dg/tree-ssa/vrp89.c: New test.

From-SVN: r200731

	PR middle-end/36041
	* libgcc2.c (POPCOUNTCST2, POPCOUNTCST4, POPCOUNTCST8, POPCOUNTCST):
	Define.
	(__popcountSI2): For __SIZEOF_INT__ > 2 targets use arithmetics
	instead of table lookups.
	(__popcountDI2): Likewise.

From-SVN: r200506

libgcc/
2013-06-25  Chung-Ju Wu  <jasonwucj@gmail.com>

        * Makefile.in (clean, distclean): Remove auto-target.h and stamp-h
        correctly.

From-SVN: r200390

	PR other/53317

gcc/testsuite:
	* gcc.dg/torture/fp-int-convert-float128-timode-2.c: New test.

libgcc:
	* soft-fp/adddf3.c: Update from glibc.
	* soft-fp/addsf3.c: Likewise.
	* soft-fp/addtf3.c: Likewise.
	* soft-fp/divdf3.c: Likewise.
	* soft-fp/divsf3.c: Likewise.
	* soft-fp/divtf3.c: Likewise.
	* soft-fp/double.h: Likewise.
	* soft-fp/eqdf2.c: Likewise.
	* soft-fp/eqsf2.c: Likewise.
	* soft-fp/eqtf2.c: Likewise.
	* soft-fp/extenddftf2.c: Likewise.
	* soft-fp/extended.h: Likewise.
	* soft-fp/extendsfdf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/fixdfdi.c: Likewise.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* soft-fp/fixunsdfdi.c: Likewise.
	* soft-fp/fixunsdfsi.c: Likewise.
	* soft-fp/fixunssfdi.c: Likewise.
	* soft-fp/fixunssfsi.c: Likewise.
	* soft-fp/fixunstfdi.c: Likewise.
	* soft-fp/fixunstfsi.c: Likewise.
	* soft-fp/floatdidf.c: Likewise.
	* soft-fp/floatdisf.c: Likewise.
	* soft-fp/floatditf.c: Likewise.
	* soft-fp/floatsidf.c: Likewise.
	* soft-fp/floatsisf.c: Likewise.
	* soft-fp/floatsitf.c: Likewise.
	* soft-fp/floatundidf.c: Likewise.
	* soft-fp/floatundisf.c: Likewise.
	* soft-fp/floatunditf.c: Likewise.
	* soft-fp/floatunsidf.c: Likewise.
	* soft-fp/floatunsisf.c: Likewise.
	* soft-fp/floatunsitf.c: Likewise.
	* soft-fp/gedf2.c: Likewise.
	* soft-fp/gesf2.c: Likewise.
	* soft-fp/getf2.c: Likewise.
	* soft-fp/ledf2.c: Likewise.
	* soft-fp/lesf2.c: Likewise.
	* soft-fp/letf2.c: Likewise.
	* soft-fp/muldf3.c: Likewise.
	* soft-fp/mulsf3.c: Likewise.
	* soft-fp/multf3.c: Likewise.
	* soft-fp/negdf2.c: Likewise.
	* soft-fp/negsf2.c: Likewise.
	* soft-fp/negtf2.c: Likewise.
	* soft-fp/op-1.h: Likewise.
	* soft-fp/op-2.h: Likewise.
	* soft-fp/op-4.h: Likewise.
	* soft-fp/op-8.h: Likewise.
	* soft-fp/op-common.h: Likewise.
	* soft-fp/quad.h: Likewise.
	* soft-fp/single.h: Likewise.
	* soft-fp/soft-fp.h: Likewise.
	* soft-fp/subdf3.c: Likewise.
	* soft-fp/subsf3.c: Likewise.
	* soft-fp/subtf3.c: Likewise.
	* soft-fp/truncdfsf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/unorddf2.c: Likewise.
	* soft-fp/unordsf2.c: Likewise.
	* soft-fp/unordtf2.c: Likewise.
	* config/aarch64/sfp-machine.h (_FP_QNANNEGATEDP): Define to 0.
	* config/arm/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/c6x/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/i386/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/ia64/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/lm32/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/moxie/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/rs6000/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/score/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.
	* config/tilegx/sfp-machine32.h (_FP_QNANNEGATEDP): Likewise.
	* config/tilegx/sfp-machine64.h (_FP_QNANNEGATEDP): Likewise.
	* config/tilepro/sfp-machine.h (_FP_QNANNEGATEDP): Likewise.

From-SVN: r200318

gcc/
2013-06-16  Jürgen Urban  <JuergenUrban@gmx.de>

	* config/mips/mips.h (ISA_HAS_MUL3): Include TARGET_MIPS5900.
	(ISA_HAS_MULT, ISA_HAS_DMULT, ISA_HAS_DIV, ISA_HAS_DDIV): New macros.
	* config/mips/mips.md (mul<mode>3, mul<mode>3_internal)
	(mul<mode>3_r4000): Require ISA_HAS_<D>MULT.
	(mul<mode>3_mul3): Handle TARGET_MIPS5900.
	(mulsidi3_64bit_dmul): Remove redundant TARGET_64BIT test.
	(<su>muldi3_highpart, <su>muldi3_highpart_internal, <u>mulditi3)
	(<u>mulditi3_internal, <u>mulditi3_r4000): Require ISA_HAS_DMULT
	instead of TARGET_64BIT.
	(divmod<mode>4, udivmod<mode>4, <u>divmod<GPR:mode>4_hilo_<HILO:mode>):
	Require ISA_HAS_<D>DIV.

libgcc/
2013-06-16  Jürgen Urban  <JuergenUrban@gmx.de>

	* config/mips/lib2funcs.c: New file.
	* config/mips/t-mips (LIB2ADD_ST): Add it.

From-SVN: r200140

	PR target/6526
	* config/sh/lib1funcs.S (sdivsi3_i4, udivsi3_i4): Do not change bits
	other than FPSCR.PR and FPSCR.SZ.  Add SH4A implementation.

	PR target/6526
	* gcc.target/sh/pr6526.c: New.

From-SVN: r199873

	* config/tilepro/atomic.h: Don't include stdint.h or features.h.
	Replace int64_t with long long.  Add __extension__ where
	appropriate.
	* config/tilepro/atomic.c: Include config.h.

From-SVN: r199855

From-SVN: r199747

2013-06-03  Jürgen Urban  <JuergenUrban@gmx.de>

	* config.gcc (mipsr5900-*-elf*, mipsr5900el-*-elf*, mips64r5900-*-elf*)
	(mips64r5900el-*-elf*): New configurations.
	* config/mips/mips-cpus.def (r5900): New processor.
	* config/mips/mips-tables.opt: Regenerate.
	* config/mips/mips.c (mips_rtx_cost_data): Add an R5900 entry.
	(mips_issue_rate): Handle PROCESSOR_R5900.
	(mips_reorg_process_insns): Force reorder mode for the R5900.
	* config/mips/mips.h (TARGET_MIPS5900): Define.
	(ISA_HAS_CONDMOVE, ISA_HAS_PREFETCH, ISA_HAS_HILO_INTERLOCKS): Include
	TARGET_MIPS5900.
	(ISA_HAS_LOAD_DELAY, ISA_HAS_XFER_DELAY, ISA_HAS_FCMP_DELAY): Exclude
	TARGET_MIPS5900.
	* config/mips/mips.md (processor): Add r5900.
	(MOVECC): Disallow CCmode conditions for TARGET_MIPS5900.

libgcc/
2013-06-03  Jürgen Urban  <JuergenUrban@gmx.de>

	* config.host (mipsr5900-*-elf*, mipsr5900el-*-elf*, mips64r5900-*-elf*)
	(mips64r5900el-*-elf*): New configurations.

From-SVN: r199666

	* config/rs6000/ibm-ldouble.c: Enable for little-endian.

From-SVN: r199650

	* config/i386/i386.c (ix86_lea_outperforms): Fix formatting.
	(ix86_avoid_lea_for_addr): Likewise.
	(exact_dependency_1): Likewise.
	(ix86_adjust_cost): Likewise.
	(swap_top_of_ready_list): Fix formatting and !reload_completed check
	removed.
	(do_reorder_for_imul): Fix typo, formatting and
	!reload_completed check removed.
	(ix86_sched_reorder): Fix typo and formatting.
	(fold_builtin_cpu): Move M_INTEL_SLM at the end of processor types
	list.

	* config/i386/cpuinfo.c (INTEL_SLM): New enum value.

From-SVN: r199611

        Silvermont (SLM) architecture pipeline model, tuning and
        insn selection.
        * config.gcc: Add slm config options and target.

        * config/i386/slm.md: New.

        * config/i386/driver-i386.c (host_detect_local_cpu): Check movbe.

        * gcc/config/i386/i386-c.c (ix86_target_macros_internal):  New case
        PROCESSOR_SLM.
        (ix86_target_macros_internal): Likewise.

        * gcc/config/i386/i386.c (slm_cost): New cost.
        (m_SLM): New macro flag.
        (initial_ix86_tune_features): Set m_SLM.
        (x86_accumulate_outgoing_args): Likewise.
        (x86_arch_always_fancy_math_387): Likewise.
        (processor_target_table): Add slm cost.
        (cpu_names): Add slm cpu name.
        (x86_option_override_internal): Set SLM ISA.
        (ix86_issue_rate): New case PROCESSOR_SLM.
        (ia32_multipass_dfa_lookahead): Likewise.
        (fold_builtin_cpu): Add slm.

        * config/i386/i386.h (TARGET_SLM): New target macro.
        (target_cpu_default): Add TARGET_CPU_DEFAULT_slm.
        (processor_type): Add PROCESSOR_SLM.

        * config/i386/i386.md (cpu): Add new value "slm".
        (slm.md): Include slm.md.

        * libgcc/config/i386/cpuinfo.c (INTEL_SLM): New enum value.


Co-Authored-By: Igor Zamyatin <igor.zamyatin@intel.com>

From-SVN: r199444

sol2-unwind.h (MD_FALLBACK_FRAME_STATE_FOR): Do not set fs->signal_frame for SIGFPE raised for IEEE-754 exceptions.

	* config/sparc/sol2-unwind.h (MD_FALLBACK_FRAME_STATE_FOR): Do not set
	fs->signal_frame for SIGFPE raised for IEEE-754 exceptions.
	* config/i386/sol2-unwind.h (x86_fallback_frame_state): Likewise.

From-SVN: r199381

	* config.host (powerpc-*-elf*): Add rs6000/t-savresfgpr to tmake_file.
	(powerpc-wrs-vxworks): Likewise.

From-SVN: r199219

	* config/sparc/sol2-unwind.h (sparc64_frob_update_context): Do it for
	signal frames as well.
	(MD_FALLBACK_FRAME_STATE_FOR): Do minor cleanups throughout and add the
	STACK_BIAS to the CFA offset.

From-SVN: r199191

re PR target/49146 (segv from libgcc_s when raising an exception, or unwinding stack with backtrace with ms_abi)

PR target/49146

	* unwind-dw2.c (UNWIND_COLUMN_IN_RANGE): New macro.
	(execute_cfa_program): Use it when storing to fs->regs.

From-SVN: r199019

	* config/i386/cygming-crtbegin.c (__register_frame_info): Make weak.
	(__deregister_frame_info): Likewise.

From-SVN: r198719

libgcc/
	* fp-bit.c (unpack_d, pack_d): Properly preserve and restore a
	NaN's payload.

From-SVN: r198622

libgcc/
	* fp-bit.h [FLOAT] (QUIET_NAN): Correct value.

From-SVN: r198621

libgcc/
	* config.host: Match little-endian powerpc-linux.
gcc/
	* config.gcc: Support little-endian powerpc-linux targets.
	* config/rs6000/linux.h (LINK_OS_LINUX_EMUL): Define.
	(LINK_OS_LINUX_SPEC): Define.
	* config/rs6000/linuxspe.h (TARGET_DEFAULT):
	Preserve MASK_LITTLE_ENDIAN.
	* config/rs6000/default64.h (TARGET_DEFAULT): Likewise.
	* config/rs6000/linuxaltivec.h (TARGET_DEFAULT): Likewise.
	* config/rs6000/linux64.h (OPTION_LITTLE_ENDIAN): Don't zero.
	(LINK_OS_LINUX_EMUL32, LINK_OS_LINUX_EMUL64): Define.
	(LINK_OS_LINUX_SPEC32, LINK_OS_LINUX_SPEC64): Use above.
	* config/rs6000/rs6000.c (output_toc): Don't use .tc for TARGET_ELF.
	Correct fp word order for little-endian.  Don't shift toc entries
	smaller than a word for little-endian.
	* config/rs6000/rs6000.md (bswaphi2, bswapsi2 split): Comment.
	(bswapdi2 splits): Correct low-part subreg for little-endian.
	Remove wrong BYTES_BIG_ENDIAN tests, and rename vars to remove
	low/high where such is correct only for be.
	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Allow
	little-endian for -mcall-aixdesc.

From-SVN: r198273

libgcc/

	* config/aarch64/sfp-machine.h (_FP_W_TYPE): Change to define
	as 'unsigned long long' instead of 'unsigned long'.
	(_FP_WS_TYPE): Change to define as 'signed long long' instead of
	'signed long'.

From-SVN: r198090

	* config/arm/linux-atomic.c (SUBWORD_SYNC_OP, SUBWORD_VAL_CAS)
	(SUBWORD_TEST_AND_SET): Use signed char/short types instead of
	unsigned char/unsigned short.
	(__sync_val_compare_and_swap_{1,2}): Handle signed argument.

From-SVN: r197806

	PR other/55274
	* config/t-slibgcc-hpux (SHLIB_MAPFILES): Define.

From-SVN: r197544

libgcc/

2013-04-04  Meador Inge  <meadori@codesourcery.com>

	* config/arm/bpabi.S (aeabi_ldivmod): Add DWARF information for
	computing the location of the link register.
	(aeabi_uldivmod): Ditto.

From-SVN: r197493

2013-03-27  Kai Tietz  <ktietz@redhat.com>

	* config.host: Add support for cygwin x64 target.
	* configure: Regenerated.

From-SVN: r197176

	* config/tilegx/t-crtstuff: Add -fno-asynchronous-unwind-tables
	-mcmodel=large to CRTSTUFF_T_CFLAGS_S variable.

From-SVN: r197083

From-SVN: r197050

	* config/vxlib-tls.c (__gthread_get_tsd_data,)
	(__gthread_set_tsd_data, __gthread_enter_tsd_dtor_context,)
	(__gthread_leave_tsd_dtor_context): Add prototypes.
	(tls_delete_hook): Update.

From-SVN: r196842

gcc/
2013-03-20  Catherine Moore  <clm@codesourcery.com>
	    Maciej W. Rozycki  <macro@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>
	    Nathan Sidwell <nathan@codesourcery.com>
	    Iain Sandoe  <iain@codesourcery.com>
	    Nathan Froyd  <froydnj@codesourcery.com>
	    Chao-ying Fu <fu@mips.com>

	* doc/extend.texi: (micromips, nomicromips, nocompression):
	Document new function attributes. 
	* doc/invoke.texi (minterlink-compressed, mmicromips,
	m14k, m14ke, m14kec): Document new options.
	(minterlink-mips16): Update documentation.
	* doc/md.texi (ZC, ZD): Document new constraints.
	* configure.ac (gcc_cv_as_micromips): Check if linker
	supports the .set micromips directive.
	* configure: Regenerate.
	* config.in: Regenerate.
	* config/mips/mips-tables.opt: Regenerate.
	* config/mips/micromips.md: New file.
	* constraints.md (ZC, ZD): New constraints.
	* config/mips/predicates.md (movep_src_register): New predicate.
	(movep_src_operand): New predicate.
	(non_volatile_mem_operand): New predicate.
	* config/mips/mips.md (multimem): New type.
	(length): Differentiate between 17-bit and 18-bit branch offsets.
	(MOVEP1, MOVEP2): New mode iterator.
 	(mov_<load>l): Use ZC constraint.
	(mov_<load>r): Likewise.
	(mov_<store>l): Likewise.
	(mov_<store>r): Likewise.
	(*branch_equality<mode>_inverted): Add microMIPS support.
	(*branch_equality<mode>): Likewise.
	(*jump_absolute): Likewise.
	(indirect_jump_<mode>): Likewise.
	(tablejump_<mode>): Likewise.
	(<optab>_internal): Likewise.
	(sibcall_internal): Likewise.
	(sibcall_value_internal): Likewise.
	(prefetch): Use constraint ZD.
	* config/mips/mips.opt (minterlink-compressed): New option.
	(minterlink-mips16): Now an alias for minterlink-compressed.
	(mmicromips): New option.
	* config/mips/sync.md (sync_compare_and_swap<mode>): Use ZR constraint.
	(compare_and_swap_12): Likewise.
	(sync_add<mode>): Likewise.
	(sync_<optab>_12): Likewise.
	(sync_old_<optab>_12): Likewise.
	(sync_new_<optab>_12): Likewise.
	(sync_nand_12): Likewise.
	(sync_old_nand_12): Likewise.
	(sync_new_nand_12): Likewise.
	(sync_sub<mode>): Likewise.
	(sync_old_add<mode>): Likewise.
	(sync_old_sub<mode>): Likewise.
	(sync_new_add<mode>): Likewise.
	(sync_new_sub<mode>): Likewise.
	(sync_<optab><mode>): Likewise.
	(sync_old_<optab><mode>): Likewise.
	(sync_new_<optab><mode>): Likewise.
	(sync_nand<mode>): Likewise.
	(sync_old_nand<mode>): Likewise.
	(sync_new_nand<mode>): Likewise.
	(sync_lock_test_and_set<mode>): Likewise.
	(test_and_set_12): Likewise.
	(atomic_compare_and_swap<mode>): Likewise.
	(atomic_exchange<mode>_llsc): Likewise.
	(atomic_fetch_add<mode>_llsc): Likewise.
	* config/mips/mips-cpus.def (m14kc, m14k): New processors.
	* config/mips/mips-protos.h (umips_output_save_restore): New prototype.
	(umips_save_restore_pattern_p): Likewise.
	(umips_load_store_pair_p): Likewise.
	(umips_output_load_store_pair): Likewise.
	(umips_movep_target_p): Likewise.
	(umips_12bit_offset_address_p): Likewise.
	* config/mips/mips.c (MIPS_MAX_FIRST_STEP): Update for microMIPS.
	(mips_base_mips16): Rename this...
	(mips_base_compression_flags): ...to this. Update all uses.
	(mips_attribute_table): Add micromips, nomicromips and nocompression.
	(mips_mips16_decl_p): Delete.
	(mips_nomips16_decl_p): Delete.
 	(mips_get_compress_on_flags): New function.
	(mips_get_compress_off_flags): New function.
	(mips_get_compress_mode): New function.
	(mips_get_compress_on_name): New function.
	(mips_get_compress_off_name): New function.
	(mips_insert_attributes): Support multiple compression types.
	(mips_merge_decl_attributes): Likewise.
	(umips_12bit_offset_address_p): New function.
	(mips_start_function_definition): Emit .set micromips directive.
	(mips_call_may_need_jalx_p): New function.
	(mips_function_ok_for_sibcall): Add microMIPS support.
	(mips_print_operand_punctuation): Support short delay slots and
	compact jumps.
	(umips_swm_mask, umips_swm_encoding): New.
	(umips_build_save_restore): New function.
	(mips_for_each_saved_gpr_and_fpr): Add microMIPS support.
	(was_mips16_p): Remove.
	(old_compression_mode): New.
	(mips_set_compression_mode): New function.
	(mips_set_current_function): Add microMIPS support.
	(mips_option_override): Likewise.
	(umips_save_restore_pattern_p): New function.
	(umips_output_save_restore): New function.
	(umips_load_store_pair_p_1): New function.
	(umips_load_store_pair_p): New function.
	(umips_output_load_store_pair_1): New function.
	(umips_output_load_store_pair): New function.
	(umips_movep_target_p) New function.
	(mips_prepare_pch_save): Add microMIPS support.
	* config/mips/mips.h (TARGET_COMPRESSION): New.
	(TARGET_CPU_CPP_BUILTINS): Update macro
	to use new compression flags and to support microMIPS.
	(MIPS_ISA_LEVEL_SPEC): Add m14k processors.
	(MIPS_ARCH_FLOAT_SPEC): Likewise.
	(ISA_HAS_LWXS): Include TARGET_MICROMIPS.
	(ISA_HAS_LOAD_DELAY): Exclude TARGET_MICROMIPS.
	(ASM_SPEC): Support mmicromips and mno-micromips.
	(M16STORE_REG_P): New macro.
	(MIPS_CALL): Support TARGET_MICROMIPS.
	(MICROMIPS_J): New macro.
	(mips_base_mips16): Rename this...
	(mips_base_compression_flags): ...to this.
	(UMIPS_12BIT_OFFSET_P): New macro.
	* config/mips/t-sde: (MULTILIB_OPTIONS): Add microMIPS.
	(MULTILIB_DIRNAMES): Likewise.
libgcc/
2013-03-20  Catherine Moore  <clm@codesourcery.com>
	    Joseph Myers  <joseph@codesourcery.com>
	    Chao-ying Fu  <fu@mips.com>

	* config/mips/mips16.S:  Don't build for microMIPS.
	* config/mips/linux-unwind.h: Handle microMIPS frame.
	* config/mips/crtn.S (fini, init): New labels.
gcc/testsuite/
2013-03-20  Catherine Moore  <clm@codesourcery.com>
	    Richard Sandiford <rdsandiford@googlemail.com>

	* gcc.target/mips/mips.exp: Add microMIPS support.
	* gcc.target/mips/umips-movep-2.c: New test.
	* gcc.target/mips/umips-lwp-2.c: New test.
	* gcc.target/mips/umips-swp-5.c: New test.
	* gcc.target/mips/umips-constraints-1.c: New test.
	* gcc.target/mips/umips-lwp-3.c: New test.
	* gcc.target/mips/umips-swp-6.c: New test.
	* gcc.target/mips/umips-constraints-2.c: New test.
	* gcc.target/mips/umips-save-restore-1.c: New test.
	* gcc.target/mips/umips-lwp-4.c: New test.
	* gcc.target/mips/umips-swp-7.c: New test.
	* gcc.target/mips/umips-save-restore-2.c: New test.
	* gcc.target/mips/umips-lwp-swp-volatile.c: New test.
	* gcc.target/mips/umips-lwp-5.c: New test.
	* gcc.target/mips/umips-save-restore-3.c: New test.
	* gcc.target/mips/umips-lwp-6.c: New test.
	* gcc.target/mips/umips-swp-1.c: New test.
	* gcc.target/mips/umips-lwp-7.c: New test.
	* gcc.target/mips/umips-swp-2.c: New test.
	* gcc.target/mips/umips-lwp-8.c: New test.
	* gcc.target/mips/umips-swp-3.c: New test.
	* gcc.target/mips/umips-movep-1.c: New test.
	* gcc.target/mips/umips-lwp-1.c: New test.
	* gcc.target/mips/umips-swp-4.c: New test.


Co-Authored-By: Chao-ying Fu <fu@mips.com>
Co-Authored-By: Iain Sandoe <iain@codesourcery.com>
Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
Co-Authored-By: Maciej W. Rozycki <macro@codesourcery.com>
Co-Authored-By: Nathan Froyd <froydnj@codesourcery.com>
Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>
Co-Authored-By: Richard Sandiford <rdsandiford@googlemail.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>

From-SVN: r196828

	PR tree-optimization/53265
	* common.opt (Waggressive-loop-optimizations): New option.
	* tree-ssa-loop-niter.c: Include tree-pass.h.
	(do_warn_aggressive_loop_optimizations): New function.
	(record_estimate): Call it.  Don't add !is_exit bounds to loop->bounds
	if number_of_latch_executions returned constant.
	(estimate_numbers_of_iterations_loop): Call number_of_latch_executions
	early.  If number_of_latch_executions returned constant, set
	nb_iterations_upper_bound back to it.
	* cfgloop.h (struct loop): Add warned_aggressive_loop_optimizations
	field.
	* Makefile.in (tree-ssa-loop-niter.o): Depend on $(TREE_PASS_H).
	* doc/invoke.texi (-Wno-aggressive-loop-optimizations): Document.

	* gcc.dg/pr53265.c: New test.
	* gcc.dg/torture/pr49518.c: Add -Wno-aggressive-loop-optimizations
	to dg-options.
	* g++.dg/opt/longbranch2.C (EBCOTLut): Double sizes of a2 and a3
	arrays.
	* gcc.dg/tree-ssa/cunroll-10.c (main): Rename to foo.  Add argument
	n, use it as high bound instead of 4.

	* unwind-dw2.c (execute_cfa_program): Avoid
	-Waggressive-array-optimizations warnings for DW_CFA_GNU_window_save
	on targets with DWARF_FRAME_REGISTERS < 32.

	* testsuite/libmudflap.c/fail37-frag.c: Add optimization barrier.

From-SVN: r196650

	PR target/49880
	* config/sh/sh.opt (FPU_SINGLE_ONLY): New mask.
	(musermode): Convert to Var(TARGET_USERMODE).
	* config/sh/sh.h (SELECT_SH2A_SINGLE_ONLY, SELECT_SH4_SINGLE_ONLY,
	MASK_ARCH): Add MASK_FPU_SINGLE_ONLY.
	* config/sh/sh.c (sh_option_override): Use
	TARGET_FPU_DOUBLE || TARGET_FPU_SINGLE_ONLY for call-fp case.
	* config/sh/sh.md (udivsi3_i1, divsi3_i1): Remove ! TARGET_SH4
	condition.
	(udivsi3_i4, divsi3_i4): Use TARGET_FPU_DOUBLE condition instead of
	TARGET_SH4.
	(udivsi3_i4_single, divsi3_i4_single): Use
	TARGET_FPU_SINGLE_ONLY || TARGET_FPU_DOUBLE instead of TARGET_HARD_SH4.

	PR target/49880
	* config/sh/lib1funcs.S (sdivsi3_i4, udivsi3_i4): Enable for SH2A.
	(sdivsi3, udivsi3): Remove SH4 check and always compile these functions.

	PR target/49880
	* gcc.target/sh/pr49880-1.c: New.
	* gcc.target/sh/pr49880-2.c: New.
	* gcc.target/sh/pr49880-3.c: New.
	* gcc.target/sh/pr49880-4.c: New.
	* gcc.target/sh/pr49880-5.c: New.

From-SVN: r196636

2013-03-07  Sriraman Tallam  <tmsriram@google.com>

	* config/i386/cpuinfo.c (get_intel_cpu): Fix cpuid codes for
	sandybridge processors.

From-SVN: r196532

	PR target/56529
	* config/sh/sh.c (sh_option_override): Check for TARGET_DYNSHIFT
	instead of TARGET_SH2 for call-table case.  Do not set sh_div_strategy
	to SH_DIV_CALL_TABLE for TARGET_SH2.
	* config.gcc (sh_multilibs): Add m2 and m2a to sh*-*-linux* multilib
	list.
	* doc/invoke.texi (SH options): Document mdiv= call-div1, call-fp,
	call-table options.

	PR target/56529
	* config/sh/lib1funcs.S (udivsi3_i4i, sdivsi3_i4i): Add __SH2A__ to
	inclusion list.

From-SVN: r196484