PR ipa/63580
* cgraphunit.c (cgraph_node::create_wrapper):
TREE_ADDRESSABLE is set to false for a newly created thunk.
* g++.dg/ipa/pr63580.C: New test.
From-SVN: r217222
PR ipa/63595
* g++.dg/ipa/pr63595.C: New test.
* cgraphunit.c (cgraph_node::expand_thunk): DECL_BY_REFERENCE
is correctly handled for thunks created by IPA ICF.
From-SVN: r217218
2014-11-07 Richard Biener <rguenther@suse.de>
* match.pd: Add patterns for POINTER_PLUS_EXPR association
and special patterns from tree-ssa-forwprop.c
* fold-const.c (fold_binary_loc): Remove them here.
* tree-ssa-forwprop.c (to_purge): New global bitmap.
(fwprop_set_lattice_val): New function.
(fwprop_invalidate_lattice): Likewise.
(remove_prop_source_from_use): Instead of purging dead EH
edges record blocks to do that in to_purge.
(tidy_after_forward_propagate_addr): Likewise.
(forward_propagate_addr_expr): Invalidate the lattice for
SSA names we release.
(simplify_conversion_from_bitmask): Likewise.
(simplify_builtin_call): Likewise.
(associate_pointerplus_align): Remove.
(associate_pointerplus_diff): Likewise.
(associate_pointerplus): Likewise.
(fold_all_stmts): Merge with ...
(pass_forwprop::execute): ... the original loop over all
basic-blocks. Delay purging dead EH edges and invalidate
the lattice for SSA names we release.
From-SVN: r217213
2014-11-06 Steve Ellcey <sellcey@imgtec.com>
* config.gcc (mips*-mti-linux*): Remove gnu_ld and gas assignments.
Set default_mips_arch and default_mips_abi instead of tm_defines.
(mips*-*-linux*): Set default_mips_arch and default_mips_abi instead
of tm_defines.
(mips*-*-*): Check with_arch and with_abi. Set tm_defines.
* config/mips/mips.h (STANDARD_STARTFILE_PREFIX_1): Set default
based on MIPS_ABI_DEFAULT.
(STANDARD_STARTFILE_PREFIX_2): Ditto.
From-SVN: r217203
This patch makes cpplib track the original spellings of extended
identifiers, as well as the canonical UTF-8 version, in order to
follow standard semantics properly without needing a convoluted and
undocumented canonicalization in translation phase 1 (see bug 9449
comments 39-46 regarding such a canonicalization).
The spelling is tracked in cpp_identifier and cpp_macro_arg without
making cpp_token any larger. The original spelling is used for checks
of duplicate macro definitions, stringizing (see the C++ tests added;
this case is only an issue for C++ not C because C makes it
implementation-defined whether a \ is inserted before the \ of a UCN
in a string or character constant when stringizing, while C++ does
not), pasting (relevant when the result is then stringized for C++)
and when macro definitions are output as text (e.g. for -d options).
Once a macro has been defined, only the original spelling of the
argument names needs keeping in the argument list. While it is being
defined, however, both spellings are needed: the original one for
subsequent saving for checks of duplicate macro definitions, and the
canonical one which is the node marked specially to generate macro
argument tokens rather than normal identifier tokens. The buffer that
is used to save the original values of the identifier tokens is
changed so that it stores both those original values and a pointer to
the canonical hash nodes, so that those canonical nodes can be found
when their values need restoring after the macro definition has been
parsed.
I believe this covers the known standards issues in extended
identifiers support (the remaining unimplemented C99 areas in GCC all
being floating-point-related), except for C++ translation of extended
characters to UCNs in phase 1 (which I have no plans to work on).
There are however probably issues left with handling of extended
identifiers in other places, as listed in
<https://gcc.gnu.org/ml/gcc-patches/2014-11/msg00337.html> (those
issues are generally the sort of thing that could be addressed as bugs
outside development stage 1). (The bulk of the potential issues Zack
was concerned about in 2003-5, that resulted in extended identifiers
being disabled in the absence of -fextended-identifiers, were
effectively eliminated by the audit and fixes I did in 2009, however;
that todo list reflects what was left over after that audit.)
Bootstrapped with no regressions on x86_64-unknown-linux-gnu.
libcpp:
* include/cpp-id-data.h (struct cpp_macro): Update comment
regarding parameters.
* include/cpplib.h (struct cpp_macro_arg, struct cpp_identifier):
Add spelling fields.
(struct cpp_token): Update comment on macro_arg.
* internal.h (_cpp_save_parameter): Add extra argument.
(_cpp_spell_ident_ucns): New declaration.
* lex.c (lex_identifier): Add SPELLING argument. Set *SPELLING to
original spelling of identifier.
(_cpp_lex_direct): Update calls to lex_identifier.
(_cpp_spell_ident_ucns): New function, factored out of
cpp_spell_token.
(cpp_spell_token): Adjust FORSTRING argument semantics to return
original spelling of identifiers. Use _cpp_spell_ident_ucns in
!FORSTRING case.
(_cpp_equiv_tokens): Check spellings of identifiers and macro
arguments are identical.
* macro.c (macro_arg_saved_data): New structure.
(paste_tokens): Use original spellings of identifiers from
cpp_spell_token.
(_cpp_save_parameter): Add argument SPELLING. Save both canonical
node and its value.
(parse_params): Update calls to _cpp_save_parameter.
(lex_expansion_token): Save spelling of macro argument tokens.
(_cpp_create_definition): Extract canonical node from saved data.
(cpp_macro_definition): Use UCNs in spelling of macro name. Use
original spellings of macro argument tokens and identifiers.
* traditional.c (scan_parameters): Update call to
_cpp_save_parameter.
gcc:
* doc/invoke.texi (-std=c99, -std=c11): Don't refer to corner
cases of extended identifiers.
gcc/testsuite:
* g++.dg/cpp/ucnid-2.C, g++.dg/cpp/ucnid-3.C,
gcc.dg/cpp/ucnid-11.c, gcc.dg/cpp/ucnid-12.c,
gcc.dg/cpp/ucnid-13.c, gcc.dg/cpp/ucnid-14.c,
gcc.dg/cpp/ucnid-15.c: New tests.
From-SVN: r217202
* config/m32c/cond.md (movqicc_<code>_<mode>): Remove mode of
conditional.
(movhicc_<code>_<mode>): Likewise.
* config/m32c/m32c.c (encode_pattern_1): Specialise PSImode
subregs.
(m32c_eh_return_data_regno): Change to using memregs to avoid
tying up all the compute regs.
(m32c_legitimate_address_p) Subregs are not valid addresses.
From-SVN: r217200
* target.def (call_args, end_call_args): New hooks.
* hooks.c (hook_void_rtx_tree): New empty function.
* hooks.h (hook_void_rtx_tree): Declare.
* doc/tm.texi.in (TARGET_CALL_ARGS, TARGET_END_CALL_ARGS): Add.
* doc/tm.texi: Regenerate.
* calls.c (expand_call): Slightly rearrange the code. Use the two new
hooks.
(expand_library_call_value_1): Use the two new hooks.
From-SVN: r217199
gcc/testsuite/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* gcc.misc-tests/output.exp: New test case for identical input and
output files.
include/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* filenames.h: Add prototype for canonical_filename_eq.
gcc/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* diagnostic-core.h: Add prototype for fatal_error.
* diagnostic.c (fatal_error): New function fatal_error.
* gcc.c (store_arg): Remove have_o_argbuf_index.
(process_command): Check if input and output files are the same.
* toplev.c (init_asm_output): Check if input and output files are
the same.
libiberty/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* filename_cmp.c (canonical_filename_eq): New function to check if
file names are the same.
* functions.texi: Updated with documentation for new function.
From-SVN: r217159
* gcc-interface/trans.c (Subprogram_Body_to_gnu): For a function with
copy-in/copy-out parameters and which returns by invisible reference,
do not create the variable for the return value; instead, manually
generate the indirect copy out statements on exit.
(gnat_to_gnu) <N_Simple_Return_Statement>: Adjust accordingly and build
a simple indirect assignment for the return value.
From-SVN: r217155
2014-11-04 François Dumont <fdumont@gcc.gnu.org>
Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/63698
* include/bits/stl_tree.h (_Reuse_or_alloc_node): Simplify constructor.
Always move to the left node if there is one.
* testsuite/23_containers/set/allocator/move_assign.cc (test04): New.
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r217154
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: For a
derived untagged type that renames discriminants, be prepared for
a type derived from a private discriminated type when changing the
type of the stored discriminants.
From-SVN: r217153
* gcc-interface/trans.c (Handled_Sequence_Of_Statements_to_gnu): Set
the SLOC of the node on the call to set_jmpbuf_address_soft emitted
on block entry with SJLJ.
From-SVN: r217152
* gcc-interface/utils.c (create_subprog_decl): Move code dealing with
conflicting inlining status of nested subprograms to...
* gcc-interface/trans.c (check_inlining_for_nested_subprog): ...here.
(Attribute_to_gnu) <Attr_Access>: Call it.
(Call_to_gnu): Likewise.
(Subprogram_Body_to_gnu): Drop the body if it is an inlined external
function that has been marked uninlinable.
From-SVN: r217151
gcc/testsuite/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* gcc.misc-tests/output.exp: New test case for identical input and
output files.
include/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* filenames.h: Add prototype for canonical_filename_eq.
gcc/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* diagnostic-core.h: Add prototype for fatal_error.
* diagnostic.c (fatal_error): New function fatal_error.
* gcc.c (store_arg): Remove have_o_argbuf_index.
(process_command): Check if input and output files are the same.
* toplev.c (init_asm_output): Check if input and output files are
the same.
libiberty/ChangeLog:
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312
* filename_cmp.c (canonical_filename_eq): New function to check if
file names are the same.
* functions.texi: Updated with documentation for new function.
From-SVN: r217149
As proposed at <https://gcc.gnu.org/ml/gcc/2014-11/msg00014.html>,
this patch enables -fextended-identifiers by default for all standard
versions including this feature (all C++ versions, C99 and above for
C, but not C90 / C94 / gnu89 / preprocessing assembler). It adds a
couple of tests for areas where I previously noted testsuite coverage
for extended identifiers was lacking, removes -fextended-identifiers
from existing tests, adds -g to various such tests to verify that
extended identifiers don't break debug info generation and removes the
test that was only there to verify that the feature was off by
default.
The current state of the feature may not correspond exactly to any
particular checklist from 2004/5 (see bug 9449) of what was wanted
before enabling the feature by default, but I don't think it's any
worse than plenty of other features supported by default before every
corner case is fully functional, and think problems can readily be
fixed incrementally.
The following aspects of extended identifiers could still do with more
work (and should be straightforward):
* C -aux-info (output should use UCNs).
* ObjC -gen-decls (output should use UCNs; associated diagnostics from
the ObjC front end should use extended characters or UCNs as
appropriate to the locale, via using %qE or identifier_to_locale).
* Use DW_AT_use_UTF8 in DWARF-3 debug info for compilation units built
with extended identifiers enabled (or unconditionally).
* cpplib diagnostics (outputting characters or UCNs as appropriate
depending on the locale, as done for identifiers in non-cpplib
diagnostics).
* C++ test for UCN linking with C and extern "C".
* Check GDB support / file issues for support if needed.
* Actual UTF-8 in identifiers (?). (Be careful about not affecting
performance for the normal fast path of lexing identifiers, if
possible.)
The following may be trickier:
* cpplib spelling preservation (required to diagnose macro
redefinition with different spellings of the same identifier in the
definition or argument names; different spellings of the name of the
macro itself are OK, however; also required for correct handling of
multiple stringizing in C++); correct output for -d (UCNs), DWARF
debug info for macros (UCNs), PCH and PCH tests. (Spelling
preservation is the issue that needs fixing to remove references to
corner cases in the documentation of -std=c99 and -std=c11 and in
c99status.html.) The idea would be to add a second pointer to
cpp_identifier that stores the original spelling (whether for
extended identifiers only, or for all identifiers); this does not
enlarge cpp_token because the resulting larger cpp_identifier
structure is no bigger than cpp_string.
* C++ translation of extended characters (including $@` and various
control characters) to UCNs in phase 1 (note diagnostics thus
needed, but not for C++11, for control characters in strings /
character constants as those UCNs invalid); a likely implementation
approach is to do translation when identifiers / strings / character
constants are lexed, together with errors for stray $@` / control
characters in program as not being valid UCNs in identifiers ($ only
if not accepted in identifiers); note that this translation should
not take place inside raw string literals.
Bootstrapped with no regressions on x86_64-unknown-linux-gnu.
libcpp:
PR preprocessor/9449
* init.c (lang_defaults): Enable extended identifiers for C++ and
C99-based standards.
gcc:
PR preprocessor/9449
* doc/cpp.texi (Character sets, Tokenization)
(Implementation-defined behavior): Don't refer to UCNs in
identifiers requiring -fextended-identifiers.
* doc/cppopts.texi (-fextended-identifiers): Document as enabled
by default for C99 and later and C++.
* doc/invoke.texi (-std=c99, -std=c11): Don't refer to extended
identifiers needing -fextended-identifiers.
gcc/testsuite:
PR preprocessor/9449
* lib/target-supports.exp (check_effective_target_ucn_nocache):
Don't use -fextended-identifiers.
* c-c++-common/cpp/normalize-3.c, c-c++-common/cpp/ucnid-2011-1.c,
g++.dg/cpp/ucn-1.C, g++.dg/cpp/ucnid-1.C, g++.dg/other/ucnid-1.C,
gcc.dg/cpp/normalize-1.c, gcc.dg/cpp/normalize-2.c,
gcc.dg/cpp/normalize-4.c: Don't use -fextended-identifiers.
* gcc.dg/cpp/ucnid-1.c: Don't use -fextended-identifiers. Use
-g3.
* gcc.dg/cpp/ucnid-10.c, gcc.dg/cpp/ucnid-2.c,
gcc.dg/cpp/ucnid-3.c, gcc.dg/cpp/ucnid-4.c, gcc.dg/cpp/ucnid-5.c,
gcc.dg/cpp/ucnid-7.c, gcc.dg/cpp/ucnid-9.c,
gcc.dg/cpp/warn-normalized-1.c, gcc.dg/cpp/warn-normalized-2.c,
gcc.dg/cpp/warn-normalized-3.c: Don't use -fextended-identifiers.
* gcc.dg/ucnid-1.c, gcc.dg/ucnid-2.c, gcc.dg/ucnid-3.c,
gcc.dg/ucnid-4.c, gcc.dg/ucnid-5.c, gcc.dg/ucnid-6.c: Don't use
-fextended-identifiers. Use -g.
* gcc.dg/ucnid-7.c, gcc.dg/ucnid-8.c: Don't use
-fextended-identifiers.
* gcc.dg/ucnid-9.c: Don't use -fextended-identifiers. Use -g.
* gcc.dg/ucnid-10.c: Don't use -fextended-identifiers.
* gcc.dg/ucnid-11.c, gcc.dg/ucnid-12.c: Don't use
-fextended-identifiers. Use -g.
* gcc.dg/ucnid-13.c: Don't use -fextended-identifiers.
* gcc.dg/cpp/ucnid-8.c: Remove test.
* gcc.dg/cpp/ucnid-10.c, gcc.dg/ucnid-14.c: New tests.
From-SVN: r217144
2014-11-05 Christophe Lyon <christophe.lyon@linaro.org>
* gcc.target/aarch64/advsimd-intrinsics/advsimd-intrinsics.exp:
Skip tests if target does not support Neon.
From-SVN: r217134
[AArch64,ARM] support bswap tests on aarch64_be. Skip them on ARM
targets older than v6.
2014-11-05 Christophe Lyon <christophe.lyon@linaro.org>
* lib/target-supports.exp (check_effective_target_bswap): Update
conditions for AArch64 and ARM targets.
From-SVN: r217133
