2011-10-18  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.h (struct pt_solution): Remove
	vars_contains_restrict member.
	(pt_solutions_same_restrict_base): Remove.
	(pt_solution_set): Adjust.
	* tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Remove
	vars_contains_restrict handling.
	(dump_points_to_solution): Likewise.
	(ptr_derefs_may_alias_p): Do not call pt_solutions_same_restrict_base.
	* tree-ssa-structalias.c (struct variable_info): Remove is_restrict_var
	field.
	(new_var_info): Do not initialize it.
	(ipa_escaped_pt): Adjust.
	(make_constraint_from_restrict): Make the tag global.
	(make_constraint_from_global_restrict): New function.
	(make_constraint_from_heapvar): Remove.
	(create_variable_info_for): Do not make restrict vars point
	to NONLOCAL.
	(intra_create_variable_infos): Likewise.
	(find_what_var_points_to): Remove vars_contains_restrict handling.
	(pt_solution_set): Adjust.
	(pt_solution_ior_into): Likewise.
	(pt_solutions_same_restrict_base): Remove.
	(compute_points_to_sets): Do not test is_restrict_var.
	* cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
	* gimple-pretty-print.c (pp_points_to_solution): Likewise.

	* gcc.dg/torture/restrict-1.c: New testcase.

From-SVN: r180127

2011-10-18  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/50672
	* tree-ssa-dce.c (mark_virtual_operand_for_renaming): New function,
	factored out of ...
	(mark_virtual_phi_result_for_renaming): Use
	mark_virtual_operand_for_renaming.
	* tree-flow.h (mark_virtual_operand_for_renaming): Declare.
	* tree-ssa-tail-merge.c (release_last_vdef): New function.
	(purge_bbs): Add update_vops parameter.  Call release_last_vdef for each
	deleted basic block.
	(tail_merge_optimize): Add argument to call to purge_bbs.

From-SVN: r180126

2011-10-18  Richard Guenther  <rguenther@suse.de>

	PR middle-end/50716
	* expr.c (get_object_or_type_alignment): New function.
	(expand_assignment): Use it.
	(expand_expr_real_1): Likewise.

From-SVN: r180125

libcpp/

	* include/line-map.h (struct linemap_stats): Change the type of
	the members from size_t to long.
	* macro.c (macro_arg_token_iter_init): Unconditionally initialize
	iter->location_ptr.

gcc/c-family/

	* c-lex.c (fe_file_change): Use LINEMAP_SYSP when
	!NO_IMPLICIT_EXTERN_C.

gcc/
	* input.c (dump_line_table_statistics): Use long, not size_t.

From-SVN: r180124

From-SVN: r180123

From-SVN: r180122

2011-10-17  Michael Spertus  <mike_spertus@symantec.com>

	* gcc/c-family/c-common.c (c_common_reswords): Add __bases,
	__direct_bases.
	* gcc/c-family/c-common.h: Add RID_BASES and RID_DIRECT_BASES.

2011-10-17  Michael Spertus  <mike_spertus@symantec.com>

	* cp-tree.def: Add BASES as a new tree code.
	* cp-tree.h (enum cp_trait_kind): Add CPTK_BASES, CPTK_DIRECT_BASES.
	(BASES_TYPE, BASES_DIRECT): Define.
	(calculate_bases, finish_bases, calculate_direct_bases): Declare.
	* parser.c (cp_parser_trait_expr, cp_parser_template_argument_list,
	(cp_parser_simple_type_specifier, cp_parser_save_nsdmi): Use them.
	* pt.c (find_parameter_packs_r, tsubst_pack_expansion): Likewise.
	* semantics.c (calculate_bases, finish_bases, calculate_direct_bases,
	dfs_calculate_bases_pre, dfs_calculate_bases_post,
	calculate_bases_helper): Define.

2011-10-17  Michael Spertus  <mike_spertus@symantec.com>

	* g++.dg/ext/bases.C: New test.

2011-10-17  Michael Spertus  <mike_spertus@symantec.com>

	* include/tr2/type_traits (bases, direct_bases, typelist): New.

2011-10-17  Benjamin Kosnik  <bkoz@redhat.com>

	* libstdc++-v3/include/Makefile.am: Add tr2 directory and includes.
	* libstdc++-v3/include/Makefile.in: Regenerate.

	* scripts/create_testsuite_files: Search tr2 directory.
	* testsuite/libstdc++-dg/conformance.exp: Same.

	* testsuite/tr2/bases/requirements/explicit_instantiation.cc: New.
	* testsuite/tr2/bases/requirements/typedefs.cc: New.
	* testsuite/tr2/bases/value.cc: New.
	* testsuite/tr2/direct_bases/requirements/
	explicit_instantiation.cc: New.
	* testsuite/tr2/direct_bases/requirements/typedefs.cc: New.
	* testsuite/tr2/direct_bases/value.cc: New.

From-SVN: r180121

	* config/sparc/sparc.md (vec_perm_constv8qi, vec_perm<mode>): New
	patterns.
	* config/sparc/sparc.c (sparc_expand_vec_perm_bmask): New function.
	* config/sparc/sparc-protos.h (sparc_expand_vec_perm_bmask): Declare.

From-SVN: r180119

From-SVN: r180118

	* configure.ac: Add --with-native-system-header-dir.  Set and
	substitute NATIVE_SYSTEM_HEADER_DIR.  Use native_system_header
	when setting target_header_dir.
	* config.gcc: Always set native_system_header_dir.
	(*-*-gnu*): Set native_system_header_dir.  Don't use t-gnu.
	(i[34567]86-pc-msdosdjgpp*): Set native_system_header_dir.  Don't
	use i386/t-djgpp.
	(i[34567]86-*-mingw* | x86_64-*-mingw*): Set
	native_system_header_dir.
	(spu-*-elf*): Set native_system_header_dir.
	* Makefile.in (NATIVE_SYSTEM_HEADER_DIR): Set to
	@NATIVE_SYSTEM_HEADER_DIR@.
	(PREPROCESSOR_DEFINES): Define NATIVE_SYSTEM_HEADER_DIR.
	* cppdefault.c (STANDARD_INCLUDE_DIR): Don't define.
	(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
	STANDARD_INCLUDE_COMPONENT.
	(cpp_include_defaults): Don't use SYSTEM_INCLUDE_DIR.  Rename
	STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
	* system.h: Poison SYSTEM_INCLUDE_DIR, STANDARD_INCLUDE_DIR, and
	STANDARD_INCLUDE_COMPONENT.
	* config/i386/t-mingw32 (NATIVE_SYSTEM_HEADER_DIR): Remove.
	* config/i386/t-mingw-w32: Likewise.
	* config/i386/t-mingw-w64: Likewise.
	* config/spu/t-spu-elf: Likewise.
	* config/i386/t-djgpp: Remove.
	* config/t-gnu: Remove.
	* config/i386/mingw32.h (STANDARD_INCLUDE_DIR): Don't define.
	(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
	STANDARD_INCLUDE_COMPONENT.
	* config/i386/djgpp.h (STANDARD_INCLUDE_DIR): Don't define.
	* config/spu/spu-elf.h: Likewise.
	* config/vms/xm-vms.h: Likewise.
	* config/gnu.h: Likewise.
	* config/openbsd.h (INCLUDE_DEFAULTS): Change STANDARD_INCLUDE_DIR
	and STANDARD_INCLUDE_COMPONENT to NATIVE_SYSTEM_HEADER_DIR and
	NATIVE_SYSTME_HEADER_COMPONENT.
	* doc/install.texi (Configuration): Document
	--with-native-system-header-dir.  Mention it in the documentation
	for --with-sysroot and --with-build-sysroot.
	* doc/tm.texi.in (Driver): Don't document SYSTEM_INCLUDE_DIR or
	STANDARD_INCLUDE_DIR.  Rename STANDARD_INCLUDE_COMPONENT to
	NATIVE_SYSTEM_HEADER_COMPONENT.  Rename uses of
	STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
	* doc/fragments.texi (Target Fragment): Don't document
	NATIVE_SYSTEM_HEADER_DIR.
	* configure, doc/tm.texi: Rebuild.

Co-Authored-By: Ian Lance Taylor <iant@google.com>

From-SVN: r180114

	* config/sparc/sparc.md: Use register_or_zero_operand where rJ
	is the constraint.

From-SVN: r180113

gcc/
	* config/sparc/sparc-modes.def: Add single entry vector modes for
	DImode and SImode.
	* config/sparc/sparc/sparc.md (V32, V32I, V64, V64I, V64N8): Delete
	mode iterators.
	(mov<V32:mode>): Revert back to plain SFmode pattern.
	(*movsf_insn): Likewise.
	(mov<V64:mode>): Revert back to plain DFmode pattern.
	(*movdf_insn_sp32): Likewise.
	(*movdf_insn_sp32_v9): Likewise.
	(*movdf_insn_sp64): Likewise.
	(V64 mode splitters) Likewise.
	(addsi3): Remove VIS alternatives.
	(subsi3): Likewise.
	(and<V64I:mode>3): Revert to DImode only pattern.
	(and<V64I:mode>3_sp32): Likewise.
	(*and<V64I:mode>3_sp64): Likewise.
	(and<V32I:mode>3): Likewise.
	(*and_not_<V64I:mode>_sp32): Likewise.
	(*and_not_<V64I:mode>_sp64): Likewise.
	(*and_not_<V32I:mode>): Likewise.
	(ior<V64I:mode>3): Likewise.
	(*ior<V64I:mode>3_sp32): Likewise.
	(*ior<V64I:mode>3_sp64): Likewise.
	(ior<V32I:mode>3): Likewise.
	(*or_not_<V64I:mode>_sp32): Likewise.
	(*or_not_<V64I:mode>_sp64): Likewise.
	(*or_not_<V32I:mode>): Likewise.
	(xor<V64I:mode>3): Likewise.
	(*xor<V64I:mode>3_sp32): Likewise.
	(*xor<V64I:mode>3_sp64): Likewise.
	(xor<V32I:mode>3): Likewise.
	(V64I mode splitters): Likewise.
	(*xor_not_<V64I:mode>_sp32): Likewise.
	(*xor_not_<V64I:mode>_sp64): Likewise.
	(*xor_not_<V32I:mode>): Likewise.
	(one_cmpl<V64I:mode>2): Likewise.
	(*one_cmpl<V64I:mode>2_sp32): Likewise.
	(*one_cmpl<V64I:mode>2_sp64): Likewise.
	(one_cmpl<V32I:mode>2): Likewise.
	(VM32, VM64, VMALL): New mode iterators.
	(vbits, vconstr, vfptype): New mode attributes.
	(mov<VMALL:mode>): New expander.
	(*mov<VM32:mode>_insn): New insn.
	(*mov<VM64:mode>_insn_sp64): New insn.
	(*mov<VM64:mode>_insn_sp32): New insn, and associated splitter
	specifically for the register to memory case.
	(vec_init<mode>): New expander.
	(VADDSUB): New mode iterator.
	(<plusminus_insn>v2si3, <plusminus_insn>v2hi3): Remove and replace
	with...
	(<plusminus_insn><mode>3): New consolidated pattern.
	(VL): New mode iterator for logical operations.
	(vlsuf): New more attribute.
	(vlop): New code iterator.
	(vlinsn, vlninsn): New code attributes.
	(<code><mode>3): New insn to non-negated vector logical ops.
	(*not_<code><mode>3): Likewise for negated variants.
	(*nand<mode>_vis): New insn.
	(vlnotop): New code iterator.
	(*<code>_not1<mode>_vis, *<code>_not2<mode>_vis): New insns.
	(one_cmpl<mode>2): New insn.
	(faligndata<V64I:mode>_vis): Rewrite to use VM64 iterator.
	(bshuffle<VM64:mode>_vis): Likewise.
	(v<vis3_shift_patname><mode>3): Use GCM mode iterator.
	(fp<plusminus_insn>64_vis): Use V1DI mode.
	(VASS mode iterator): Use V1SI not SI mode.
	* config/sparc/sparc.c (sparc_vis_init_builtins): Account for
	single-entry vector mode changes.
	(sparc_expand_builtin): Likewise.
	(sparc_expand_vector_init): New function.
	* config/sparc/sparc-protos.h (sparc_expand_vector_init): Declare.

gcc/testsuite/

	* gcc.target/sparc/fand.c: Remove __LP64__ ifdefs and expect
	all operations to emit VIS instructions.
	* gcc.target/sparc/fandnot.c: Likewise.
	* gcc.target/sparc/fnot.c: Likewise.
	* gcc.target/sparc/for.c: Likewise.
	* gcc.target/sparc/fornot.c: Likewise.
	* gcc.target/sparc/fxnor.c: Likewise.
	* gcc.target/sparc/fxor.c: Likewise.
	* gcc.target/sparc/combined-1.c: Revert change to use -O2, no longer
	needed.

From-SVN: r180112

	* gcc.c-torture/execute/vshuf-v16hi.c: New test.
	* gcc.dg/torture/vshuf-16.inc: New file.
	* gcc.dg/torture/vshuf-2.inc: New file.
	* gcc.dg/torture/vshuf-32.inc: New file.
	* gcc.dg/torture/vshuf-4.inc: New file.
	* gcc.dg/torture/vshuf-8.inc: New file.
	* gcc.dg/torture/vshuf-main.inc: New file.
	* gcc.dg/torture/vshuf-v16hi.c: New test.
	* gcc.dg/torture/vshuf-v16qi.c: New test.
	* gcc.dg/torture/vshuf-v2df.c: New test.
	* gcc.dg/torture/vshuf-v2di.c: New test.
	* gcc.dg/torture/vshuf-v2sf.c: New test.
	* gcc.dg/torture/vshuf-v2si.c: New test.
	* gcc.dg/torture/vshuf-v32qi.c: New test.
	* gcc.dg/torture/vshuf-v4df.c: New test.
	* gcc.dg/torture/vshuf-v4di.c: New test.
	* gcc.dg/torture/vshuf-v4hi.c: New test.
	* gcc.dg/torture/vshuf-v4sf.c: New test.
	* gcc.dg/torture/vshuf-v4si.c: New test.
	* gcc.dg/torture/vshuf-v8hi.c: New test.
	* gcc.dg/torture/vshuf-v8qi.c: New test.
	* gcc.dg/torture/vshuf-v8sf.c: New test.
	* gcc.dg/torture/vshuf-v8si.c: New test.

From-SVN: r180110

	* fold-const.c (simple_operand_p_2): New function.
	(fold_truthop): Rename to
	(fold_truth_andor_1): function name.
	Additionally remove branching creation for logical and/or.
	(fold_truth_andor): Handle branching creation for logical and/or here.

From-SVN: r180109

2011-10-17  Andi Kleen  <ak@linux.intel.com>

       * ggc-page.c (USING_MADVISE): Adjust ifdef to check for
       USING_MMAP.

From-SVN: r180107

re PR tree-optimization/50746 (FAIL: gcc.dg/vect/pr37482.c (internal compiler error) on powerpc-apple-darwin9)


        PR tree-optimization/50746
        * gcc.dg/vect/vect-114.c: Remove vect_hw_misalign.

From-SVN: r180106

	PR c++/50736
	* parser.c (cp_parser_lambda_introducer): Check for more
	invalid captures.

From-SVN: r180105

	* config/avr/avr.h (ASSEMBLER_DIALECT): Remove.
	* config/avr/avr.md (mcu_have_movw, mcu_mega): Remove attributes.
	(adjust_len): Add alternative "call".
	(isa, enabled): New insn attributes.
	(length): Use match_test with AVR_HAVE_JMP_CALL instead of
	mcu_mega attribute.
	(*sbrx_branch<mode>): Ditto.
	(*sbrx_and_branch<mode>): Ditto.
	(*sbix_branch): Ditto.
	(*sbix_branch_bit7): Ditto.
	(*sbix_branch_tmp): Ditto.
	(*sbix_branch_tmp_bit7): Ditto.
	(jump): Ditto.
	(negsi2): Use attribute "isa" instead of assembler dialect.
	(extendhisi2): Ditto.
	(call_insn, call_value_insn): Set adjust_len attribute.
	(indirect_jump): Indent to coding rules.
	(call_prologue_saves): Use isa attribute instead of mcu_mega.
	(epilogue_restores): Ditto.  Fix setting of SP as described in the
	RTX pattern.
	(*indirect_jump): Fusion of *jcindirect_jump, *njcindirect_jump
	and *indirect_jump_avr6.
	(*tablejump): Fusion of *tablejump_rjmp and *tablejump_lib.
	(*jcindirect_jump, *njcindirect_jump, *indirect_jump_avr6): Remove.
	(*tablejump_rjmp, *tablejump_lib): Remove.
	* config/avr/avr.c (adjust_insn_length): Handle ADJUST_LEN_CALL.

From-SVN: r180104

/cp
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/44524
	* typeck.c (build_class_member_access_expr): Provide a better error
	message for X.Y where X is a pointer to class type.
	(finish_class_member_access_expr): Likewise.

/testsuite
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/44524
	* g++.dg/parse/error41.C: New.
	* g++.dg/parse/error20.C: Adjust.

From-SVN: r180103

/gcc
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* c-family/c.opt ([Wnonnull]): Add C++ and Objective-C++.
	* doc/invoke.texi: Update.

/testsuite
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* g++.dg/warn/format7.C: New.
	* obj-c++.dg/warn7.mm: Likewise.

From-SVN: r180102

/gcc
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* c-family/c.opt ([Wnonnull]): Add C++ and Objective-C++.
	* doc/invoke.texi: Update.

/testsuite
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* g++.dg/warn/format7.C: New.
	* obj-c++.dg/warn7.mm: Likewise.

From-SVN: r180101

re PR tree-optimization/50746 (FAIL: gcc.dg/vect/pr37482.c (internal compiler error) on powerpc-apple-darwin9)

PR 50746
        * optabs.c (expand_vec_perm_expr): Fix indexing error.

From-SVN: r180100

libgcc/ChangeLog:

2011-10-16  Uros Bizjak  <ubizjak@gmail.com>
	    Eric Botcazou  <ebotcazou@adacore.com>

	PR target/50737
	* config/alpha/linux-unwind.h (alpha_fallback_frame_state): Set
	fs->signal_frame to 1.

libjava/ChangeLog:

2011-10-16  Uros Bizjak  <ubizjak@gmail.com>
	    Eric Botcazou  <ebotcazou@adacore.com>

	PR target/50737
	* include/dwarf2-signal.h [__alpha__]: Remove MAKE_THROW_FRAME
	definition.


Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>

From-SVN: r180098

	PR bootstrap/50715
	* config/abi/pre/gnu.ver (CXXABI_1.3.6): Remove duplicate
	__cxa_get_exception_ptr.

From-SVN: r180097

2011-10-17  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure.ac: Display `yes' if the SystemTap header has been
	found.
	* configure: Regenerate.

From-SVN: r180095

Use the Linux MADV_DONTNEED call to unmap free pages in the garbage
collector.Then keep the unmapped pages in the free list. This avoid
excessive memory fragmentation on large LTO bulds, which can lead
to gcc bumping into the Linux vm_max_map limit per process.

gcc/:

2011-10-08  Andi Kleen  <ak@linux.intel.com>

	PR other/50636
	* config.in, configure: Regenerate.
	* configure.ac (madvise): Add to AC_CHECK_FUNCS.
	* ggc-page.c (USING_MADVISE): Add.
	(page_entry): Add discarded field.
	(alloc_page): Check for discarded pages.
	(release_pages): Add USING_MADVISE branch.

From-SVN: r180093

libcpp/ChangeLog

	* line-map.c (linemap_macro_map_loc_to_exp_point): Avoid setting a
	variable without using it if ENABLE_CHECKING is not defined.  Mark
	the LOCATION parameter as being unused.

From-SVN: r180090

re PR tree-optimization/50729 (Silent code gen fault: Value range propagation seems to propagate values across narrowing/widening)

2011-10-17  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50729
	* tree-vrp.c (extract_range_from_unary_expr_1): Remove
	redundant test.
	(simplify_conversion_using_ranges): Properly test the
	intermediate result.

	* gcc.dg/torture/pr50729.c: New testcase.

From-SVN: r180087

This patch basically arranges for the allocation size of line_map
buffers to be as close as possible to a power of two.  This
*significantly* decreases peak memory consumption as (macro) maps are
numerous and stay live during all the compilation.

The patch adds a new ggc_round_alloc_size interface to the ggc
allocator.  In each of the two main allocator implementations ('page'
and 'zone') the function has been extracted from the main allocation
function code and returns the actual size of the allocated memory
region, thus giving a chance to the caller to maximize the amount of
memory it actually uses from the allocated memory region.  In the
'none' allocator implementation (that uses xmalloc) the
ggc_round_alloc_size just returns the requested allocation size.

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180086

This patch adds statistics about line maps' memory consumption and
macro expansion to the output of -fmem-report.  It has been useful in
trying to reduce the memory consumption of the macro maps support.

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180085

This patch adds -fdebug-cpp option. When used with -E this dumps the
relevant macro map before every single token. This clutters the output
a lot but has proved to be invaluable in tracking some bugs during the
development of the virtual location support.

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180084

In this third instalment the diagnostic machinery -- when faced with
the virtual location of a token resulting from macro expansion -- uses
the new linemap APIs to unwind the stack of macro expansions that led
to that token and emits a [hopefully] more useful message than what we
have today.

diagnostic_report_current_module has been slightly changed to use the
location given by client code instead of the global input_location
variable.  This results in more precise diagnostic locations in
general but then the patch adjusts some C++ tests which output changed
as a result of this.

Three new regression tests have been added.

The mandatory screenshot goes like this:

[dodji@adjoa gcc]$ cat -n test.c
     1    #define OPERATE(OPRD1, OPRT, OPRD2) \
     2      OPRD1 OPRT OPRD2;
     3
     4    #define SHIFTL(A,B) \
     5      OPERATE (A,<<,B)
     6
     7    #define MULT(A) \
     8      SHIFTL (A,1)
     9
    10    void
    11    g ()
    12    {
    13      MULT (1.0);/* 1.0 << 1; <-- so this is an error.  */
    14    }

[dodji@adjoa gcc]$ ./cc1 -quiet -ftrack-macro-expansion test.c
test.c: In function 'g':
test.c:5:14: erreur: invalid operands to binary << (have 'double' and 'int')
test.c:2:9: note: in expansion of macro 'OPERATE'
test.c:5:3: note: expanded from here
test.c:5:14: note: in expansion of macro 'SHIFTL'
test.c:8:3: note: expanded from here
test.c:8:3: note: in expansion of macro 'MULT2'
test.c:13:3: note: expanded from here

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180083

This second instalment uses the infrastructure of the previous patch
to allocate a macro map for each macro expansion and assign a virtual
location to each token resulting from the expansion.

To date when cpp_get_token comes across a token that happens to be a
macro, the macro expander kicks in, expands the macro, pushes the
resulting tokens onto a "token context" and returns a dummy padding
token. The next call to cpp_get_token goes look into the token context
for the next token [which is going to result from the previous macro
expansion] and returns it.  If the token is a macro, the macro expander
kicks in and you know the story.

This patch piggy-backs on that macro expansion process, so to speak.
First it modifies the macro expander to make it create a macro map for
each macro expansion. It then allocates a virtual location for each
resulting token.  Virtual locations of tokens resulting from macro
expansions are then stored on a special kind of context called an
"expanded tokens context".  In other words, in an expanded tokens
context, there are tokens resulting from macro expansion and their
associated virtual locations.  cpp_get_token_with_location is modified
to return the virtual location of tokens resulting from macro
expansion.  Note that once all tokens from an expanded token context have
been consumed and the context and is freed, the memory used to store the
virtual locations of the tokens held in that context is freed as well.
This helps reducing the overall peak memory consumption.

The client code that was getting macro expansion point location from
cpp_get_token_with_location now gets virtual location from it. Those
virtual locations can in turn be resolved into the different
interesting physical locations thanks to the linemap API exposed by
the previous patch.

Expensive progress. Possibly. So this whole virtual location
allocation business is switched off by default. So by default no
extended token is created. No extended token context is created
either. One has to use -ftrack-macro-expansion to switch this on. This
complicates the code but I believe it can be useful as some of our
friends found out at http://llvm.org/bugs/show_bug.cgi?id=5610

The patch tries to reduce the memory consumption by freeing some token
context memory that was being reused before. I didn't notice any
compilation slow down due to this immediate freeing on my GNU/Linux
system.

As no client code tries to resolve virtual locations to anything but
what was being done before, no new test case has been added.

Co-Authored-By: Dodji Seketeli <dodji@redhat.com>

From-SVN: r180082

This is the first instalment of a set which goal is to track locations
of tokens across macro expansions.  Tom Tromey did the original work
and attached the patch to PR preprocessor/7263.  This opus is a
derivative of that original work.

This patch modifies the linemap module of libcpp to add virtual
locations support.

A virtual location is a mapped location that can resolve to several
different physical locations.  It can always resolve to the spelling
location of a token.  For tokens resulting from macro expansion it can
resolve to:
  - either the location of the expansion point of the macro.
  - or the location of the token in the definition of the
  macro
  - or, if the token is an argument of a function-like macro,
  the location of the use of the matching macro parameter in
  the definition of the macro

The patch creates a new type of line map called a macro map.  For every
single macro expansion, there is a macro map that generates a virtual
location for every single resulting token of the expansion.

The good old type of line map we all know is now called an ordinary
map.  That one still encodes spelling locations as it has always had.

As a result linemap_lookup as been extended to return a macro map when
given a virtual location resulting from a macro expansion.  The layout
of structs line_map has changed to support this new type of map.  So
did the layout of struct line_maps.  Accessor macros have been
introduced to avoid messing with the implementation details of these
datastructures directly.  This helped already as we have been testing
different ways of arranging these datastructure.  Having to constantly
adjust client code that is too tied with the internals of line_map and
line_maps would have been even more painful.

Of course, many new public functions have been added to the linemap
module to handle the resolution of virtual locations.

This patch introduces the infrastructure but no part of the compiler
uses virtual locations yet.

However the client code of the linemap data structures has been
adjusted as per the changes.  E.g, it's not anymore reliable for a
client code to manipulate struct line_map directly if it just wants to
deal with spelling locations, because struct line_map can now
represent a macro map as well.  In that case, it's better to use the
convenient API to resolve the initial (possibly virtual) location to a
spelling location (or to an ordinary map) and use that.

This is the reason why the patch adjusts the Java, Ada and Fortran
front ends.

Also, note that virtual locations are not supposed to be ordered for
relations '<' and '>' anymore.  To test if a virtual location appears
"before" another one, one has to use a new operator exposed by the
line map interface.  The patch updates the only spot (in the
diagnostics module) I have found that was making the assumption that
locations were ordered for these relations.  This is the only change
that introduces a use of the new line map API in this patch, so I am
adding a regression test for it only.

From-SVN: r180081

re PR c++/48489 (Invalid error message 'has no member named' when referring directly to the base class)

/cp
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/48489
	* typeck.c (finish_class_member_access_expr): Fix error call
	for TREE_CODE (access_path) == TREE_BINFO.

/testsuite
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/48489
	* g++.dg/inherit/error5.C: New.

From-SVN: r180080

2011-10-17  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/47023
	PR fortran/50752
	* primary.c (match_kind_param): Avoid segfault.


2011-10-17  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/47023
	PR fortran/50752
	* gfortran.dg/kind_tests_4.f90: New.

From-SVN: r180079

        * gcc.dg/vect/vect-21.c: Expect the loops to get vectorized on
        targets that support vector condition.

From-SVN: r180076

From-SVN: r180071

gcc/:

2011-10-08  Andi Kleen  <ak@linux.intel.com>

	* ggc-page.c (GGC_QUIRE_SIZE): Increase to 512

From-SVN: r180066

gcc/lto/:

2011-10-09  Andi Kleen  <ak@linux.intel.com>

	* lto.c (lto_section_read): Call fatal_error on IO or mmap errors.

From-SVN: r180065