Jakub Jelinek [Tue, 11 Dec 2012 10:41:44 +0000 (11:41 +0100)]
re PR middle-end/43631 (var-tracking inserts notes with non-NULL BLOCK_FOR_INSN in between basic blocks)
PR middle-end/43631
PR bootstrap/55615
* var-tracking.c (emit_note_insn_var_location): If insn is followed
by BARRIER, put note after the BARRIER.
(next_non_note_insn_var_location): Skip over BARRIERs.
(emit_notes_in_bb): If call is followed by BARRIER, put note after
the BARRIER.
Jakub Jelinek [Tue, 11 Dec 2012 10:26:56 +0000 (11:26 +0100)]
sanitizer.def (BUILT_IN_ASAN_HANDLE_NO_RETURN): New builtin.
* sanitizer.def (BUILT_IN_ASAN_HANDLE_NO_RETURN): New builtin.
* asan.c (instrument_builtin_call): Change is_gimple_builtin_call
gcc_assert to gcc_checking_assert.
(maybe_instrument_call): Imit __builtin___asan_handle_no_return ()
before noreturn calls other than __builtin_trap () and
__builtin_unreachable ().
Richard Biener [Tue, 11 Dec 2012 10:19:21 +0000 (10:19 +0000)]
re PR other/54324 (GCC install document does not list minimum required g++ version)
2012-12-11 Richard Biener <rguenther@suse.de>
PR other/54324
* doc/install.texi (Tools/packages necessary for building GCC):
State ISO C++98 host compiler requirement. Increment minimum
GCC version required for building all languages for a cross-compiler
to 3.4 or later.
H.J. Lu [Mon, 10 Dec 2012 14:43:54 +0000 (14:43 +0000)]
Record the global variables if WPA isn't enabled
PR lto/55466
* lto-symtab.c (lto_symtab_merge_decls_1): Don't record the
prevailing variable.
* lto.c (lto_register_var_decl_in_symtab): Don't record static
variables.
(lto_main): Record the global variables if WPA isn't enabled.
Richard Biener [Mon, 10 Dec 2012 14:00:25 +0000 (14:00 +0000)]
re PR tree-optimization/55107 (GCC in an infinite loop in PRE)
2012-12-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/55107
* tree-ssa-pre.c (struct pre_stats): Remove constified field.
(bitmap_set_replace_value): Add gcc_unreachable.
(do_regular_insertion): Re-write all_same handling. Insert
an assignment instead of a PHI in this case.
(eliminate_bb): Record availability also for SSA names defined
by a constant.
(do_pre): Do not record constified events.
(execute_fre): Likewise.
* gcc.dg/torture/pr55107.c: New testcase.
* gcc.dg/tree-ssa/ssa-pre-5.c: Adjust.
Jakub Jelinek [Mon, 10 Dec 2012 12:14:36 +0000 (13:14 +0100)]
asan.c (asan_init_shadow_ptr_types): Move earlier in the file.
* asan.c (asan_init_shadow_ptr_types): Move earlier in the file.
Call initialize_sanitizer_builtins at the end.
(asan_pp_string): Use TREE_TYPE (shadow_ptr_types[0])
as character type instead of char_type_node.
(asan_emit_stack_protection): Call asan_init_shadow_ptr_types
if shadow_ptr_types isn't initialized.
(asan_protect_global): Return true for STRING_CSTs except those
created by asan_pp_string.
(count_string_csts, add_string_csts): New functions.
(struct asan_add_string_csts_data): New type.
(asan_finish_file): Clear flag_asan at the beginning, restore at the
end. Traverse constant_pool_htab () to look for protected
STRING_CSTs. Don't call initialize_sanitizer_builtins,
instead call asan_init_shadow_ptr_types if shadow_ptr_types isn't
initialized yet.
(asan_instrument): Don't call initialize_sanitizer_builtins.
* varasm.c (output_constant_def_contents): If STRING_CST should be
asan protected, align it sufficiently and emit padding after it.
(categorize_decl_for_section): If flag_asan, don't put STRING_CSTs
that should be asan protected into mergeable sections. For
-fmerge-all-constants, ignore it for -fmudflap or if decl is
asan protected.
Thomas Koenig [Sun, 9 Dec 2012 09:15:36 +0000 (09:15 +0000)]
re PR fortran/55593 (Bogus error on passing DO LOOP variable)
2012-12-09 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/55593
* frontend-passes.c (doloop_code): Use resolved_sym
instead of n.sym->formal for formal argument list
to get the correct version for all generic subroutines.
2012-12-09 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/55593
* gfortran.dg/do_check_8.f90: New test.
Steven Bosscher [Sat, 8 Dec 2012 12:12:50 +0000 (12:12 +0000)]
re PR rtl-optimization/55158 (segfault in schedule_region at -O3)
PR rtl-optimization/55158
* sched-rgn.c (bb_state_array, bb_state): Add some explaining
comment, and initialize to NULL explicitly.
(realloc_bb_state_array): New function.
(free_bb_state_array): New function.
(schedule_region): Call realloc_bb_state_array after schedule_block.
(sched_rgn_init): Use realloc_bb_state_array to initialize bb_state.
(sched_rgn_finish): Use free_bb_state_array to free it.
Dodji Seketeli [Fri, 7 Dec 2012 17:05:19 +0000 (17:05 +0000)]
PR c++/54401 - Confusing diagnostics about type-alias at class scope
Consider this invalid example given in the PR, where T is not defined:
1 template<typename>
2 struct X {
3 using type = T;
4 };
g++ yields the confusing diagnostics:
test.cc:3:10: error: expected nested-name-specifier before 'type'
using type = T;
^
test.cc:3:10: error: using-declaration for non-member at class scope
test.cc:3:15: error: expected ';' before '=' token
using type = T;
^
test.cc:3:15: error: expected unqualified-id before '=' token
I think this is because in cp_parser_member_declaration we tentatively
parse an alias declaration; we then have a somewhat meaningful
diagnostic which alas is not emitted because we are parsing
tentatively. As the parsing didn't succeed (because the input is
invalid) we try to parse a using declaration, which fails as well; but
then the diagnostic emitted is the one for the failed attempt at
parsing a using declaration, not an alias declaration. Oops.
The idea of this patch is to commit the tentative parse when we see
the '=' token in the alias-declaration. That way any error encounter
after that token is reported to the user.
We are now getting the following output:
test.cc:3:18: erreur: expected type-specifier before âTâ
using type = T;
^
test.cc:3:18: erreur: âTâ does not name a type
I don't really like the "before 'T'" there, but I think we maybe could
revisit the format of what cp_parser_error emits in general, now that
we have caret diagnostics; We could maybe do away with the "before T"
altogether?
In the mean time, it seems to me that this patch brings an improvement
over what we already have in trunk, and the issue above could be
addressed separately.
Tested on x86_64-unknown-linux-gnu against trunk.
gcc/cp/
* parser.c (cp_parser_alias_declaration): Commit to tentative
parse when see the '=' token. Get out if the type-id is invalid.
Update function comment.
(cp_parser_member_declaration): Don't try to parse a using
declaration if we know that we expected an alias declaration; that
is, if we see the '=' token after the identifier.
gcc/testsuite/
* g++.dg/cpp0x/alias-decl-28.C: New test.
* g++.dg/cpp0x/alias-decl-16.C: Update.
Martin Jambor [Fri, 7 Dec 2012 13:05:52 +0000 (14:05 +0100)]
re PR middle-end/55078 (FAIL: g++.dg/torture/pr46154.C)
2012-12-07 Martin Jambor <mjambor@suse.cz>
PR middle-end/55078
* ipa-inline-transform.c (inline_call): Turn #if 0 to #ifdef
ENABLE_CHECKING.
* ipa-prop.c (try_make_edge_direct_simple_call): Use
ipa_value_from_jfunc.
(try_make_edge_direct_virtual_call): Likewise.
(update_indirect_edges_after_inlining): Lookup new_root_info and pass
it to the functions above.
Jason Merrill [Thu, 6 Dec 2012 20:21:08 +0000 (15:21 -0500)]
re PR c++/54744 (internal compiler error: Segmentation fault, by dependent base, member typedef and ctor-initializer)
PR c++/54744
* pt.c (resolve_typename_type): Check TYPENAME_IS_RESOLVING_P on scope.
* init.c (expand_member_init): Check for being in a template first.
* parser.c (cp_parser_mem_initializer_list): Only check class types
for equivalence to the current class.
Jakub Jelinek [Thu, 6 Dec 2012 14:37:59 +0000 (15:37 +0100)]
re PR middle-end/43631 (var-tracking inserts notes with non-NULL BLOCK_FOR_INSN in between basic blocks)
PR middle-end/43631
* var-tracking.c (emit_note_insn_var_location, emit_notes_in_bb):
Clear BLOCK_FOR_INSN on notes emitted in between basic blocks,
don't adjust BB_END when inserting note after BB_END of some bb.
Jakub Jelinek [Thu, 6 Dec 2012 14:37:09 +0000 (15:37 +0100)]
re PR c++/55137 (Unexpected static structure initialization)
PR c++/55137
* fold-const.c (fold_binary_loc) <associate>: Don't introduce
TREE_OVERFLOW through reassociation. If type doesn't have defined
overflow, but one or both of the operands do, use the wrapping type
for reassociation and only convert to type at the end.
* g++.dg/opt/pr55137.C: New test.
* gcc.c-torture/execute/pr55137.c: New test.
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