The spans array is allocated in runtime_mallocinit.  On a
32-bit system the number of entries in the spans array is
MaxArena32 / PageSize, which (2U << 30) / (1 << 12) == (1 << 19).
So we are allocating an array that can hold 19 bits for an
index that can hold 20 bits.  According to the comment in the
function, this is intentional: we only allocate enough spans
(and bitmaps) for a 2G arena, because allocating more would
probably be wasteful.

But since the span index is simply the upper 20 bits of the
memory address, this scheme only works if memory addresses are
limited to the low 2G of memory.  That would be OK if we were
careful to enforce it, but we're not.  What we are careful to
enforce, in functions like runtime_MHeap_SysAlloc, is that we
always return addresses between the heap's arena_start and
arena_start + MaxArena32.

We generally get away with it because we start allocating just
after the program end, so we only run into trouble with
programs that allocate a lot of memory, enough to get past
address 0x80000000.

This changes the code that computes a span index to subtract
arena_start on 32-bit systems just as we currently do on
64-bit systems.

From-SVN: r206501

2014-01-09  Steve Ellcey  <sellcey@mips.com>

	* Makefile.in (TREE_FLOW_H): Remove.
	(TREE_SSA_H): Add file names from tree-flow.h.
	* doc/tree-ssa.texi (Annotations): Remove reference to tree-flow.h
	* tree.h: Remove tree-flow.h reference.
	* hash-table.h: Remove tree-flow.h reference.
	* tree-ssa-loop-niter.c (dump_affine_iv): Replace tree-flow.h
	reference with tree-ssa-loop.h.

From-SVN: r206496

2014-01-09  Steve Ellcey  <sellcey@mips.com>

	* gcc.dg/delay-slot-1.c: Restrict -mabi=64 to 64 bit processors.

From-SVN: r206495

2014-01-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* doc/invoke.texi: Add -maltivec={be,le} options, and document
	default element-order behavior for -maltivec.
	* config/rs6000/rs6000.opt: Add -maltivec={be,le} options.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Ensure
	that -maltivec={le,be} implies -maltivec; disallow -maltivec=le
	when targeting big endian, at least for now.
	* config/rs6000/rs6000.h: Add #define of VECTOR_ELT_ORDER_BIG.

From-SVN: r206494

	PR middle-end/47735
	* cfgexpand.c (expand_one_var): For SSA_NAMEs, if the underlying
	var satisfies use_register_for_decl, just take into account type
	alignment, rather than decl alignment.

	* gcc.target/i386/pr47735.c: New test.

From-SVN: r206493

	PR tree-optimization/59622
	* gimple-fold.c (gimple_fold_call): Fix a typo in message.  For
	__builtin_unreachable replace the OBJ_TYPE_REF call with a call to
	__builtin_unreachable and add if needed a setter of the lhs SSA_NAME.
	Don't devirtualize for inplace at all.  For targets.length () == 1,
	if the call is noreturn and cfun isn't in SSA form yet, clear lhs.

	* g++.dg/opt/pr59622-2.C: New test.
	* g++.dg/opt/pr59622-3.C: New test.
	* g++.dg/opt/pr59622-4.C: New test.
	* g++.dg/opt/pr59622-5.C: New test.

From-SVN: r206492

From-SVN: r206491

2014-01-09  Tobias Burnus  <burnus@net-b.de>

        * cpp.c (gfc_cpp_handle_option): Add missing break.
        * trans-io.c (transfer_expr): Silence unused value warning.

From-SVN: r206487

From-SVN: r206486

	* config/i386/i386.md (cpu): Remove the unused btver1.

From-SVN: r206485

2014-01-09  Rong Xu  <xur@google.com>

	* libgcc/libgcov-driver.c (this_prg): make it local to save
        bss space.
	(gcov_exit_compute_summary): Ditto.
	(gcov_exit_merge_gcda): Ditto.
	(gcov_exit_merge_summary): Ditto.
	(gcov_exit_dump_gcov): Ditto.

From-SVN: r206483

2014-01-09  Rong Xu  <xur@google.com>

	* libgcc/libgcov-driver.c (this_prg): make it local to save
        bss space.
	(gcov_exit_compute_summary): Ditto.
	(gcov_exit_merge_gcda): Ditto.
	(gcov_exit_merge_summary): Ditto.
	(gcov_exit_dump_gcov): Ditto.

From-SVN: r206482

	* gdbasan.in: Put a breakpoint on __sanitizer::Report.

From-SVN: r206481

	PR libstdc++/59738
	* include/bits/stl_vector.h (vector<>::_M_move_assign): Restore
	support for non-Movable types.

From-SVN: r206480

From-SVN: r206479

	PR target/58115
	* tree-core.h (struct target_globals): New forward declaration.
	(struct tree_target_option): Add globals field.
	* tree.h (TREE_TARGET_GLOBALS): Define.
	(prepare_target_option_nodes_for_pch): New prototype.
	* target-globals.h (struct target_globals): Define even if
	!SWITCHABLE_TARGET.
	* tree.c (prepare_target_option_node_for_pch,
	prepare_target_option_nodes_for_pch): New functions.
	* config/i386/i386.h (SWITCHABLE_TARGET): Define.
	* config/i386/i386.c: Include target-globals.h.
	(ix86_set_current_function): Instead of doing target_reinit
	unconditionally, use save_target_globals_default_opts and
	restore_target_globals.
c-family/
	* c-pch.c (c_common_write_pch): Call
	prepare_target_option_nodes_for_pch.

From-SVN: r206478

	(LibbacktraceSymbolizer::Demangle): New declaration.
	* sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
	(POSIXSymbolizer::Demangle): Use libbacktrace_symbolizer_'s Demangle
	method if possible.
	* sanitizer_common/sanitizer_symbolizer_libbacktrace.cc: Include
	"demangle.h" if SANITIZE_CP_DEMANGLE is defined.
	(struct CplusV3DemangleData): New type.
	(CplusV3DemangleCallback, CplusV3Demangle): New functions.
	(SymbolizeCodePCInfoCallback, SymbolizeCodeCallback,
	SymbolizeDataCallback): Use CplusV3Demangle.
	* sanitizer_common/Makefile.am (AM_CXXFLAGS): Add
	-DSANITIZE_CP_DEMANGLE and -I $(top_srcdir)/../include.
	* libbacktrace/backtrace-rename.h (cplus_demangle_builtin_types,
	cplus_demangle_fill_ctor, cplus_demangle_fill_dtor,
	cplus_demangle_fill_extended_operator, cplus_demangle_fill_name,
	cplus_demangle_init_info, cplus_demangle_mangled_name,
	cplus_demangle_operators, cplus_demangle_print,
	cplus_demangle_print_callback, cplus_demangle_type, cplus_demangle_v3,
	cplus_demangle_v3_callback, is_gnu_v3_mangled_ctor,
	is_gnu_v3_mangled_dtor, java_demangle_v3, java_demangle_v3_callback):
	Define.
	(__asan_internal_memcmp, __asan_internal_strncmp): New prototypes.
	(memcmp, strncmp): Redefine.
	* libbacktrace/Makefile.am (libsanitizer_libbacktrace_la_SOURCES): Add
	../../libiberty/cp-demangle.c.
	* libbacktrace/bridge.cc (__asan_internal_memcmp,
	__asan_internal_strncmp): New functions.
	* sanitizer_common/Makefile.in: Regenerated.
	* libbacktrace/Makefile.in: Regenerated.
	* configure: Regenerated.
	* configure.ac: Regenerated.
	* config.h.in: Regenerated.

From-SVN: r206477

	* sanitizer_common/Makefile.am (AM_CPPFLAGS): Add
	-isystem $(top_srcdir)/include/system.
	* sanitizer_common/Makefile.in: Regenerated.
	* include/system/linux/aio_abi.h: New header.
	* include/system/linux/mroute.h: New header.
	* include/system/linux/mroute6.h: New header.
	* include/system/linux/perf_event.h: New header.
	* include/system/linux/types.h: New header.

From-SVN: r206476

	PR sanitizer/59136
libsanitizer/
	* sanitizer_common/Makefile.am (AM_CXXFLAGS): If
	LIBBACKTRACE_SUPPORTED add -DSANITIZER_LIBBACKTRACE
	and -I/-include flags.
	* lsan/Makefile.am (liblsan_la_LIBADD): Add
	libsanitizer_libbacktrace.la if LIBBACKTRACE_SUPPORTED.
	* tsan/Makefile.am (libtsan_la_LIBADD): Likewise.
	* ubsan/Makefile.am (libubsan_la_LIBADD): Likewise.
	* asan/Makefile.am (libasan_la_LIBADD): Likewise.
	* Makefile.am (SUBDIRS): If LIBBACKTRACE_SUPPORTED add
	libbacktrace.
	* README.gcc: Document that also lsan and ubsan are
	maintained in compiler-rt upstream.
	* libbacktrace/Makefile.am: New file.
	* libbacktrace/backtrace-rename.h: New file.
	* libbacktrace/backtrace-supported.h.in: New file.
	* libbacktrace/bridge.cc: New file.
	* configure.ac: Add tests needed for libbacktrace build
	within libsanitizer.
	* sanitizer_common/Makefile.in: Regenerated.
	* lsan/Makefile.in: Regenerated.
	* tsan/Makefile.in: Regenerated.
	* ubsan/Makefile.in: Regenerated.
	* libbacktrace/Makefile.in: Generated.
	* config.h.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* interception/Makefile.in: Regenerated.
	* asan/Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
testsuite/
	* c-c++-common/asan/strip-path-prefix-1.c: Allow also the
	filename:line instead of (modulename+offset) form with stripped
	initial / from the filename.

From-SVN: r206475

	* go.test/go-test.exp (go-gc-tests): Skip nilptr tests that test
	the other Go compiler.

From-SVN: r206474

2014-01-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59730
	* g++.dg/cpp0x/variadic145.C: New.

From-SVN: r206473

	* go.test/go-test.exp (go-gc-tests): Don't run peano.go on systems
	which don't support -fsplit-stack.  Skip rotate[0123].go tests.

From-SVN: r206470

Fix for PR bootstrap/59094
+2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>
+
+       PR bootstrap/59094
+       * Makefile.am (cilkincludedir): Fixed a bug to store version-specific
+       runtime libraries in the correct place.
+       * Makefile.in: Regenerate.
+

From-SVN: r206469

Fix for PR testsuite/59524
2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>

+       PR testsuite/59524
+       * gcc.dg/cilk-plus/cilk-plus.exp: Make sure the cilk keywords tests
+       are run only if the Cilk library is available/enabled.
+       * g++.dg/cilk-plus/cilk-plus.exp: Likewise.
+       * lib/target-supports.exp (check_libcilkrts_available): New 
function.
+

From-SVN: r206468

Fix for PR c++/59631.
+++ gcc/cp/ChangeLog
+2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>
+
+       PR c++/59631
+       * parser.c (cp_parser_postfix_expression): Added a new if-statement
+       and replaced an existing if-statement with else-if statement.
+       Changed an existing error message wording to match the one from the C
+       parser.
+

+++ gcc/testsuite/ChangeLog 
+2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>
+
+       PR c++/59631
+       * gcc.dg/cilk-plus/cilk-plus.exp: Removed "-fcilkplus" from flags list.
+       * g++.dg/cilk-plus/cilk-plus.exp: Likewise.
+       * c-c++-common/cilk-plus/CK/spawnee_inline.c: Replaced second dg-option
+       with dg-additional-options.
+       * c-c++-common/cilk-plus/CK/varargs_test.c: Likewise.
+       * c-c++-common/cilk-plus/CK/steal_check.c: Likewise.
+       * c-c++-common/cilk-plus/CK/spawner_inline.c: Likewise.
+       * c-c++-common/cilk-plus/CK/spawning_arg.c: Likewise.
+       * c-c++-common/cilk-plus/CK/invalid_spawns.c: Added a dg-options tag.
+       * c-c++-common/cilk-plus/CK/pr59631.c: New testcase.
+

gcc/c/ChangeLog
+2014-01-09  Balaji V. Iyer  <balaji.v.iyer@intel.com>
+
+       PR c++/59631
+       * c-parser.c (c_parser_postfix_expression): Replaced consecutive if
+       statements with if-elseif statements.
+

From-SVN: r206463

2014-01-09  Richard Biener  <rguenther@suse.de>

	* lto.c (gimple_canonical_types_compatible_p): Fix comment.

From-SVN: r206462

2014-01-09  Richard Biener  <rguenther@suse.de>

	PR lto/45586
	* lto.c (hash_canonical_type): Do not hash TREE_ADDRESSABLE,
	TYPE_ALIGN, TYPE_RESTRICT or TYPE_REF_CAN_ALIAS_ALL.
	(gimple_canonical_types_compatible_p): Do not compare them either.

From-SVN: r206461

2014-01-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/59715
	* tree-cfg.h (split_critical_edges): Declare.
	* tree-cfg.c (split_critical_edges): Export.
	* tree-ssa-sink.c (execute_sink_code): Split critical edges.

	* gcc.dg/torture/pr59715.c: New testcase.

From-SVN: r206460

2014-01-09  Max Ostapenko  <m.ostapenko@partner.samsung.com>

	* cfgexpand.c (expand_stack_vars): Optionally disable 
	asan stack protection.
	(expand_used_vars): Likewise.
	(partition_stack_vars): Likewise.
	* asan.c (asan_emit_stack_protection): Optionally disable 
	after return stack usage.
	(instrument_derefs): Optionally disable memory 
	access instrumentation.
	(instrument_builtin_call): Likewise.
	(instrument_strlen_call): Likewise.
	(asan_protect_global): Optionally disable 
	global variables protection.
	* doc/invoke.texi: Added doc for new options.
	* params.def: Added new options.
	* params.h: Likewise.

2014-01-09  Max Ostapenko  <m.ostapenko@partner.samsung.com>

	* c-c++-common/asan/no-asan-globals.c: New test.
	* c-c++-common/asan/no-instrument-reads.c: Likewise.
	* c-c++-common/asan/no-instrument-writes.c: Likewise.
	* c-c++-common/asan/use-after-return-1.c: Likewise.
	* c-c++-common/asan/no-use-after-return.c: Likewise.

From-SVN: r206458

	PR rtl-optimization/59724
	* ifcvt.c (cond_exec_process_if_block): Don't call
	flow_find_head_matching_sequence with 0 longest_match.
	* cfgcleanup.c (flow_find_head_matching_sequence): Count even
	non-active insns if !stop_after.
	(try_head_merge_bb): Revert 2014-01-07 changes.

From-SVN: r206456

        * ree.c (get_sub_rtx): New function, extracted from...
        (merge_def_and_ext): Here.
        (combine_reaching_defs): Use get_sub_rtx.

From-SVN: r206454

From-SVN: r206452

From-SVN: r206449

re PR middle-end/59471 (ICE using vector extensions (non-top-level BIT_FIELD_REF, IMAGPART_EXPR or REALPART_EXPR))

	PR middle-end/59471
	* gcc.dg/pr59471.c (foo): Avoid vector type arguments or return
	type, use pointers to vector type instead.

From-SVN: r206448

2014-01-08  Catherine Moore  <clm@codesourcery.com>

	gcc/testsuite/
	* gcc.target/mips/umips-branch-3.c: New test.
	* gcc.target/mips/umips-branch-4.c: New test.

	gcc/
	* config/mips/mips.md (simple_return): Attempt to use JRC for microMIPS.
	* config/mips/mips.h (MIPS_CALL): Attempt to use JALS for microMIPS.

From-SVN: r206447

gcc/testsuite/
	* gcc.dg/tree-ssa/reassoc-32.c, gcc.dg/tree-ssa/reassoc-33.c,
	gcc.dg/tree-ssa/reassoc-34.c, gcc.dg/tree-ssa/reassoc-35.c,
	gcc.dg/tree-ssa/reassoc-36.c: Extend -mbranch-cost handling to MIPS.
	* gcc.dg/tree-ssa/ssa-ifcombine-ccmp-1.c,
	gcc.dg/tree-ssa/ssa-ifcombine-ccmp-4.c,
	gcc.dg/tree-ssa/ssa-ifcombine-ccmp-5.c,
	gcc.dg/tree-ssa/ssa-ifcombine-ccmp-6.c,
	gcc.dg/tree-ssa/vrp87.c, gcc.dg/tree-ssa/forwprop-28.c: Skip for MIPS.

From-SVN: r206446

gcc/
	PR rtl-optimization/59137
	* reorg.c (steal_delay_list_from_target): Call update_block for
	elided insns.
	(steal_delay_list_from_fallthrough, relax_delay_slots): Likewise.

gcc/testsuite/
	PR rtl-optimization/59137
	* gcc.target/mips/pr59137.c: New test.

From-SVN: r206445

stl_vector.h (std::vector<>::_M_move_assign): Pass *this allocator instance when building temporary vector instance so that...

2014-01-08  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_vector.h (std::vector<>::_M_move_assign): Pass
	*this allocator instance when building temporary vector instance
	so that *this allocator does not get moved.
	* include/debug/safe_base.h
	(_Safe_sequence_base(_Safe_sequence_base&&)): New.
	* include/debug/vector (__gnu_debug::vector<>(vector&&)): Use new
	move constructor from _Safe_sequence_base.
	(__gnu_debug::vector<>(vector&&, const allocator_type&)): Swap
	safe iterators if the instance is moved.
	(__gnu_debug::vector<>::operator=(vector&&)): Likewise.
	* testsuite/23_containers/vector/allocator/move.cc (test01): Add
	check on a vector iterator.
	* testsuite/23_containers/vector/allocator/move_assign.cc
	(test02): Likewise.
	(test03): New, test with a non-propagating allocator.
	* testsuite/23_containers/vector/debug/move_assign_neg.cc: New.

From-SVN: r206444

2014-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
	two duplicate entries.

From-SVN: r206443

	* gcc.target/i386/asm-1.c (dg-options): Remove -m32.
	* gcc.target/i386/incoming-5.c (dg-options): Ditto.
	* gcc.target/i386/pr55433.c (dg-options): Ditto.
	* gcc.target/i386/pr57848.c (dg-options): Ditto.
	* gcc.target/i386/pr59099.c (dg-options): Ditto.
	Require fpic effective target.
	* gcc.target/i386/pr56246.c (dg-do): Compile for fpic target only.

From-SVN: r206441