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PR testsuite/86745
* gcc.target/i386/avx-cvt-2.c: Loosen scan-assembler strings.
* gcc.target/i386/avx-cvt-2.c: Ditto.
From-SVN: r263598
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* include/tr1/legendre_function.tcc (__sph_legendre): Avoid warning
about signed/unsigned comparison.
From-SVN: r263596
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PR c++/70693 reports a crash within -Wmisleading-indentation in
get_visual_column, reading past the end of a source line.
The issue occurs due to a stray carriage return aka '\r' aka ^M, occurring
towards the end of line 35 of attachment 38289 - but not at the end itself.
This carriage return confuses our line numbering: from that point in the
file, the lexer (and thus location_t values) use line numbers that are
one larger than those seen by input.c, "cat -n" and emacs.
This discrepancy between the lexer's line numbering and input.c's line
numbering leads to an out-of-range read in get_visual_column (trying to
read column 8, to locate the first non-whitespace on the line containing
"break;", but finding the next line, which is only 4 characters long).
This patch fixes the ICE by adding a range check to get_visual_column
before accessing the input.c line buffer. This is arguably papering
over the root cause, but there are presumably other ways of triggering
such an out-of-range read by writing to the source file after the lexer
but before -Wmisleading-indentation, and we ought to be not ICE in the
face of that.
gcc/c-family/ChangeLog:
PR c++/70693
* c-common.c (selftest::c_family_tests): Call
selftest::c_indentation_c_tests.
* c-common.h (selftest::c_indentation_c_tests): New decl.
* c-indentation.c: Include "selftest.h".
(next_tab_stop): Add "tab_width" param, rather than accessing
cpp_opts.
(get_visual_column): Likewise. Clarify comment. Bulletproof
against reading past the end of the line.
(get_first_nws_vis_column): Add "tab_width" param.
(detect_intervening_unindent): Likewise.
(should_warn_for_misleading_indentation): Read tab width from
cpp_opts and pass around.
(selftest::test_next_tab_stop): New test.
(selftest::assert_get_visual_column_succeeds): New function.
(ASSERT_GET_VISUAL_COLUMN_SUCCEEDS): New macro.
(selftest::assert_get_visual_column_fails): New function.
(ASSERT_GET_VISUAL_COLUMN_FAILS): New macro.
(selftest::test_get_visual_column): New test.
(selftest::c_indentation_c_tests): New function.
gcc/testsuite/ChangeLog:
PR c++/70693
* c-c++-common/Wmisleading-indentation-pr70693.c: New test.
From-SVN: r263595
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This allows copy_blkmode_to_reg to perform larger copies when it is safe to do so by calculating
the bitsize per iteration doing the maximum copy allowed that does not read more
than the amount of bits left to copy.
Strictly speaking, this copying is only done if:
1. the target supports fast unaligned access
2. no padding is being used.
This should avoid the issues of the first patch (PR85123) but still work for targets that are safe
to do so.
Original patch https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01088.html
Previous respin https://gcc.gnu.org/ml/gcc-patches/2018-04/msg00239.html
gcc/
2018-08-16 Tamar Christina <tamar.christina@arm.com>
* expr.c (copy_blkmode_to_reg): Perform larger copies when safe.
From-SVN: r263594
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C++17 says to use std::uncaught_exceptions() here instead of
std::uncaught_exception() but since we only care whether the result is
non-zero (and we aren't planning to remove the deprecated version) we
can just keep using std::uncaught_exception() and suppress the warning.
* include/std/ostream (basic_ostream::sentry::~sentry): Suppress
deprecation warnings for using uncaught_exception().
From-SVN: r263593
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Committed on behalf of Matthew Malcomson.
2018-08-16 Matthew Malcomson <matthew.malcomson@arm.com>
gcc/
* doc/rtl.texi: Replace old RTX class names with new names.
From-SVN: r263592
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* expmed.h (canonicalize_comparison): New declaration.
* expmed.c (canonicalize_comparison, equivalent_cmp_code): New function.
* expmed.c (emit_store_flag_1): Add call to canonicalize_comparison.
* optabs.c (prepare_cmp_insn): Likewise.
* rtl.h (unsigned_condition_p): New function which checks if a
comparison operator is unsigned.
* gcc.target/aarch64/imm_choice_comparison.c: New test.
From-SVN: r263591
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PR libstdc++/86447
* src/c++11/cow-stdexcept.cc [_GLIBCXX_FULLY_DYNAMIC_STRING]
(logic_error::logic_error(logic_error&&))
(logic_error::operator=(logic_error&&))
(runtime_error::runtime_error(runtime_error&&))
(runtime_error::operator=(runtime_error&&)): Copy strings instead of
moving, to avoid allocating empty reps for moved-from strings.
From-SVN: r263590
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https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00897.html
libcpp/
* include/cpplib.h (cpp_user_macro_p, cpp_builtin_macro_p)
(cpp_macro_p): New inlines.
* directives.c (do_pragma_poison): Use cpp_macro_p.
(do_ifdef, do_ifndef): Likewise. Use _cpp_maybe_notify_macro_use.
(cpp_pop_definition): Use cpp_macro_p. Move _cpp_free_definition
earlier. Don't zap node directly.
* expr.c (parse_defined): Use _cpp_maybe_notify_macro_use &
cpp_macro_p.
* files.c (should_stack_file): Use cpp_macro_p.
* identifiers.c (cpp_defined): Likewise.
* internal.h (_cpp_mark_macro): Use cpp_user_macro_p.
(_cpp_notify_macro_use): Declare.
(_cpp_maybe_notify_macro_use): New inline.
* lex.c (is_macro): Use cpp_macro_p.
* macro.c (_cpp_warn_if_unused_macro): Use cpp_user_macro_p.
(enter_macro_context): Likewise.
(_cpp_create_definition): Use cpp_builtin_macro_p,
cpp_user_macro_p. Move _cpp_free_definition earlier.
(_cpp_notify_macro_use): New, broken out of multiple call sites.
* traditional.c (fun_like_macro_p): Use cpp_builtin_macro_p.
(maybe_start_funlike, _cpp_scan_out_logical_line)
(push_replacement_text): Likewise.
gcc/c-family/
* c-ada-spec.c (count_ada_macro): Use cpp_user_macro_p.
(store_ada_macro): Likewise.
* c-ppoutput.c (cb_used_define, dump_macro): Likewise.
* c-spellcheck.cc (should-suggest_as_macro_p): Likewise,
gcc/
* config/rs6000/rs6000-c.c (rs6000_macro_to_expend): Use cpp_macro_p.
* config/powerpcspc/powerpcspe-c.c (rs6000_macro_to_expend): Likewise.
gcc/cp/
* name-lookup.c (lookup_name_fuzzy): Likewise.
gcc/fortran/
* cpp.c (dump_macro): Use cpp_user_macro_p.
From-SVN: r263587
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2018-08-16 Iain Sandoe <iain@sandoe.co.uk>
gcc/testsuite
* gcc.dg/memcmp-1.c (lib_memcmp): Apply __USER_LABEL_PREFIX__.
(lib_strncmp): Likewise.
From-SVN: r263586
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so don't try to do tests with it.
2018-08-16 Iain Sandoe <iain@sandoe.co.uk>
gcc/testsuite/
* c-c++-common/asan/pointer-subtract-3.c: Skip for Darwin.
* c-c++-common/asan/pointer-subtract-4.c: Likewise.
* g++.dg/torture/pr44295.C : Likewise.
From-SVN: r263585
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The original issue comes from the fact that the code does
... foo (... bar)
{
return bar;
}
The expansion of the return statement causes GCC to try to return the value in
a register. GCC will try to emit the move then, from MEM to REG (due to the SSA
temporary.). It checks for a mov optab for this which isn't available and
then tries to do the move in bits using emit_move_multi_word.
emit_move_multi_word will split the move into sub parts, but then needs to get
the sub parts and does this using subregs, but it's told it can't do subregs!
The compiler is now stuck in an infinite loop.
The way this is worked around in the back-end is that we have move patterns in
neon.md that usually just force the register instead of checking with the
back-end. This prevents emit_move_multi_word from being needed. However the
pattern for V4HF and V8HF were guarded by TARGET_NEON && TARGET_FP16.
I don't believe the TARGET_FP16 guard to be needed, because the pattern doesn't
actually generate code and requires another pattern for that, and a reg to reg move
should always be possible anyway. So allowing the force to register here is safe
and it allows the compiler to generate a correct error instead of ICEing in an
infinite loop.
gcc/
2018-08-16 Tamar Christina <tamar.christina@arm.com>
PR target/84711
* config/arm/arm.c (arm_can_change_mode_class): Disallow subreg.
* config/arm/neon.md (movv4hf, movv8hf): Refactored to..
(mov<mov>): ..this and enable unconditionally.
From-SVN: r263584
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2018-08-15 Iain Sandoe <iain@sandoe.co.uk>
gcc/testsuite:
PR testsuite/78544
* gcc.dg/tree-prof/section-attr-1.c: Add Darwin-specific section attributes and matching.
* gcc.dg/tree-prof/section-attr-2.c: Likewise.
* gcc.dg/tree-prof/section-attr-3.c: Likewise.
6
From-SVN: r263583
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About 13 years ago the reg-to-reg patterns were split up, before that time
output_move_double could actually handle this case.
After the split was done most patterns were updated except for *neon_mov
which incorrectly retained reg,reg as a valid alternative.
However output_move_double can not handle this and simply returns ""
and asserts.
This pattern is essentially dead and I'm removing it for clarity.
gcc/
2018-08-16 Tamar Christina <tamar.christina@arm.com>
* config/arm/neon.md (*neon_mov<mode>): Remove reg-to-reg alternative.
From-SVN: r263582
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This patch replaces the "Common" attribute in some aarch64 options with "Target"
to make them target-dependent. This doesn't affect their behaviour or how they
are documented with "--help", but does mean that they follow the option
specification that target-specific options are given the "Target" attribute.
Tested by ensuring the changed options are still accepted as before and that
they aren't invokable from an invalid target. Bootstrapped and regression tested
on aarch64-none-elf with ... regressions.
2018-08-16 Sam Tebbs <sam.tebbs@arm.com>
* config/aarch64/aarch64.opt (mlow-precision-recip-sqrt)
(mlow-precision-sqrt, mlow-precision-div, mverbose-cost-dump): Replace
"Common" with "Target".
From-SVN: r263578
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2018-08-16 Iain Sandoe <iain@sandoe.co.uk>
gcc/testsuite
* gcc.dg/asan/pr81923.c: Stringify __USER_LABEL_PREFIX__.
From-SVN: r263577
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From-SVN: r263576
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* config/i386/i386.opt (mmitigate-rop): Mark as deprecated.
* doc/invoke.texi (mmitigate-rop): Remove.
* config/i386/i386.c: Do not include "regrename.h".
(ix86_rop_should_change_byte_p, reg_encoded_number)
(ix86_get_modrm_for_rop, set_rop_modrm_reg_bits, ix86_mitigate_rop):
Remove.
(ix86_reorg): Remove call to ix86_mitigate_rop.
* config/i386/i386.md (attr "modrm_class"): Remove.
(cmp<mode>_ccno_1, mov<mode>_xor, movstrict<mode>_xor)
(x86_mov<mode>cc_0_m1. x86_mov<mode>cc_0_m1_se)
(x86_mov<mode>cc_0_m1_neg): Remove modrm_class attribute override.
testsuite/Changelog:
* gcc.target/i386/rop1.c: Remove.
* gcc.target/i386/pr83554 (dg-options): Remove -mmitigate-rop.
From-SVN: r263572
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* ChangeLog: Fix whitespace.
* testsuite/ChangeLog: Ditto.
From-SVN: r263571
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[testsuite]
2018-08-13 Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/fold-vec-splat-char.c: New.
* gcc.target/powerpc/fold-vec-splat-floatdouble.c: New.
* gcc.target/powerpc/fold-vec-splat-int.c: New.
* gcc.target/powerpc/fold-vec-splat-longlong.c: New.
* gcc.target/powerpc/fold-vec-splat-pixel.c: New.
* gcc.target/powerpc/fold-vec-splat-short.c: New.
From-SVN: r263570
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mergeh() and mergel() for the float and double...
[gcc]
2018-08-07 Will Schmidt <will_schmidt@vnet.ibm.com>
* config/rs6000/rs600.c (rs6000_gimple_fold_builtin): Add entries to
allow folding of mergeh() and mergel() for the float and double types.
(fold_mergehl_helper): Rework to handle building a permute tree
for float vectors.
From-SVN: r263569
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The typedefs in <experimental/regex> and <experimental/string> don't
need to be in the __cxx11 namespace, because they are only aliases and
so will have the same mangled name as the underlying types.
* include/experimental/regex: Remove begin/end macros for namespace.
* include/experimental/string: Likewise.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_forward_list.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_map.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_set.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
New test.
From-SVN: r263568
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* config/i386/i386.c (expand_vec_perm_movs): Enable V4SFmode
for TARGET_SSE.
From-SVN: r263567
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Remove duplicated logic in experimental::pmr::polymorphic_allocator by
calling the __uses_allocator_construct helper.
Fix bugs in std::pmr::polymorphic_allocator with incorrect SFINAE
constraint and incorrect argument order.
* include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
calls to __uses_allocator_construct_impl and __use_alloc.
* include/experimental/memory_resource
(polymorphic_allocator::_M_construct): Remove.
(polymorphic_allocator::construct): Call __uses_allocator_construct.
Qualify calls to __use_alloc.
* include/std/memory_resource (polymorphic_allocator::construct): Fix
type in SFINAE constraint. Use constexpr if instead of tag dispatching
to _S_construct overloads.
(polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
arguments to _S_construct_p.
(polymorphic_allocator::_S_construct): Remove.
(polymorphic_allocator::_S_construct_p): Return allocators by value
not by reference.
* include/std/scoped_allocator (scoped_allocator_adaptor::construct):
Qualify calls to __use_alloc.
* testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
* testsuite/experimental/polymorphic_allocator/1.cc: New test.
* testsuite/experimental/polymorphic_allocator/construct_pair.cc:
New test.
From-SVN: r263566
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This patch adds the ability to label source ranges within a rich_location,
to be printed by diagnostic_show_locus.
For example:
pr69554-1.c:11:18: error: invalid operands to binary + (have 'const char *' and 'const char *')
11 | return (p + 1) + (q + 1);
| ~~~~~~~ ^ ~~~~~~~
| | |
| | const char *
| const char *
The patch implements labels for various type mismatch errors in the C and
C++ frontends, and in -Wformat. I implemented it wherever accurate location
information was guaranteed (there are other places that could benefit, but
we need better location information in those places).
The labels can be disabled via -fno-diagnostics-show-labels.
Similarly:
param-type-mismatch.C: In function 'int test_1(int, int, float)':
param-type-mismatch.C:11:27: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
11 | return callee_1 (first, second, third);
| ^~~~~~
| |
| int
param-type-mismatch.C:7:43: note: initializing argument 2 of 'int callee_1(int, const char*, float)'
7 | extern int callee_1 (int one, const char *two, float three);
| ~~~~~~~~~~~~^~~
where the first "error" describing the bad argument gets a label
describing the type inline (since it's non-obvious from "second").
The "note" describing the type of the param of the callee *doesn't*
get a label, since that information is explicit there in the
source ("const char *two").
The idea is that in any diagnostic where two aspects of the source aren't
in sync it ought to be easier for the user if we directly show them the
mismatching aspects inline (e.g. types).
As well as type mismatch errors, perhaps labels could also be used for
buffer overflow warnings, for describing the capacity of the destination
buffer vs the size of what's being written:
sprintf (buf, "filename: %s\n", file);
^~~ ~~~~~~~~~~~^~~
| |
capacity: 32 10 + strlen(file) + 2
or somesuch. Another idea might be for macro expansion warnings:
warning: repeated side effects in macro expansion...
x = MIN (p++, q++);
~~~~^~~~~~~~~~
note: ...expanded here as
#define MIN(X,Y) (X<Y?X:Y)
^~~ ~ ~ ~ ~ ~ ~
| | | | | |
| | | | | q++
| | | | p++
| | | q++
| q++ p++
p++
The patch removes some logic from multiline.exp which special-cased
lines ending with a '|' character (thus complicating testing of this
patch). I believe that this was a vestige from experiments I did to
support strippng dg directives from the output; it was present in the
earliest version of multiline.exp I posted:
"[RFC, stage1] Richer source location information for gcc 6 (location ranges etc)"
https://gcc.gnu.org/ml/gcc-patches/2015-03/msg00837.html
and I believe was neved used.
gcc/c-family/ChangeLog:
* c-format.c: Include "selftest-diagnostic.h" and
"gcc-rich-location.h".
(format_warning_at_char): Pass NULL for new label params of
format_warning_va.
(class indirection_suffix): New class.
(class range_label_for_format_type_mismatch): New class.
(format_type_warning): Move logic for generating "*" suffix to
class indirection_suffix. Create "fmt_label" and "param_label"
to show their types, and pass them to the
format_warning_at_substring calls.
(selftest::test_type_mismatch_range_labels): New test.
(selftest::c_format_c_tests): Call it.
gcc/c/ChangeLog:
* c-objc-common.c: Include "gcc-rich-location.h".
(c_tree_printer): Move implemenation of '%T' to...
(print_type): ...this new function.
(range_label_for_type_mismatch::get_text): New function.
* c-typeck.c (convert_for_assignment): Add type labels to the rhs
range for the various ic_argpass cases.
(class maybe_range_label_for_tree_type_mismatch): New class.
(build_binary_op): Use it when calling binary_op_error.
gcc/cp/ChangeLog:
* call.c: Include "gcc-rich-location.h".
(convert_like_real): Add range label for "invalid conversion"
diagnostic.
(perform_implicit_conversion_flags): Add type label to the
"could not convert" error.
* error.c: Include "gcc-rich-location.h".
(range_label_for_type_mismatch::get_text): New function.
* typeck.c (convert_for_assignment): Add type label to
the "cannot convert" error if a location is available.
gcc/ChangeLog:
* common.opt (fdiagnostics-show-labels): New option.
* diagnostic-show-locus.c (class layout_range): Add field
"m_label".
(class layout): Add field "m_show_labels_p".
(layout_range::layout_range): Add param "label" and use it to
initialize m_label.
(make_range): Pass in NULL for new "label" param of layout_range's
ctor.
(layout::layout): Initialize m_show_labels_p.
(layout::maybe_add_location_range): Pass in loc_range->m_label
when constructing layout_range instances.
(struct line_label): New struct.
(layout::print_any_labels): New member function.
(layout::print_line): Call it if label-printing is enabled.
(selftest::test_one_liner_labels): New test.
(selftest::test_diagnostic_show_locus_one_liner): Call it.
* diagnostic.c (diagnostic_initialize): Initialize
context->show_labels_p.
* diagnostic.h (struct diagnostic_context): Add field
"show_labels_p".
* doc/invoke.texi (Diagnostic Message Formatting Options): Add
-fno-diagnostics-show-labels.
* dwarf2out.c (gen_producer_string): Add
OPT_fdiagnostics_show_labels to the ignored options.
* gcc-rich-location.c (gcc_rich_location::add_expr): Add "label"
param.
(gcc_rich_location::maybe_add_expr): Likewise.
* gcc-rich-location.h (gcc_rich_location::gcc_rich_location): Add
label" param, defaulting to NULL.
(gcc_rich_location::add_expr): Add "label" param.
(gcc_rich_location::maybe_add_expr): Likewise.
(class text_range_label): New class.
(class range_label_for_type_mismatch): New class.
* gimple-ssa-sprintf.c (fmtwarn): Pass NULL for new label params
of format_warning_va.
(fmtwarn_n): Likewise for new params of format_warning_n_va.
* lto-wrapper.c (merge_and_complain): Add
OPT_fdiagnostics_show_labels to the "pick one setting" options.
(append_compiler_options): Likewise to the dropped options.
(append_diag_options): Likewise to the passed-on options.
* opts.c (common_handle_option): Handle the new option.
* selftest-diagnostic.c
(test_diagnostic_context::test_diagnostic_context): Enable
show_labels_p.
* substring-locations.c: Include "gcc-rich-location.h".
(format_warning_n_va): Add "fmt_label" and "param_label" params
and use them as appropriate.
(format_warning_va): Add "fmt_label" and "param_label" params,
passing them on to format_warning_n_va.
(format_warning_at_substring): Likewise.
(format_warning_at_substring_n): Likewise.
* substring-locations.h (format_warning_va): Add "fmt_label" and
"param_label" params.
(format_warning_n_va): Likewise.
(format_warning_at_substring): Likewise.
(format_warning_at_substring_n): Likewise.
* toplev.c (general_init): Initialize global_dc->show_labels_p.
gcc/testsuite/ChangeLog:
* g++.dg/diagnostic/aka3.C: New test.
* g++.dg/diagnostic/param-type-mismatch-2.C: Update expected
output to show range labels.
* g++.dg/diagnostic/param-type-mismatch.C: Likewise.
* g++.dg/plugin/plugin.exp (plugin_test_list): Add...
* g++.dg/plugin/show-template-tree-color-labels.C: New test.
* gcc.dg/bad-binary-ops.c: Update expected output to show range
labels. Add an "aka" example.
* gcc.dg/cpp/pr66415-1.c: Update expected output to show range
labels.
* gcc.dg/format/diagnostic-ranges.c: Likewise.
* gcc.dg/format/pr72858.c: Likewise.
* gcc.dg/format/pr78498.c: Likewise.
* gcc.dg/param-type-mismatch.c: Add "-Wpointer-sign" to options.
Update expected output to show range labels. Add examples of
-Wincompatible-pointer-types and -Wpointer-sign for parameters.
* gcc.dg/plugin/diagnostic-test-show-locus-bw-line-numbers.c:
Update expected output to show range labels.
* gcc.dg/plugin/diagnostic-test-show-locus-bw.c: Likewise.
(test_very_wide_line): Adjust so that label is at left-clipping
boundary.
(test_very_wide_line_2): New test.
* gcc.dg/plugin/diagnostic-test-show-locus-color-line-numbers.c:
Update expected output to show range labels.
* gcc.dg/plugin/diagnostic-test-show-locus-color.c: Likewise.
* gcc.dg/plugin/diagnostic-test-show-locus-no-labels.c: New test.
* gcc.dg/plugin/diagnostic_plugin_show_trees.c (show_tree): Update
for new param to gcc_rich_location::add_expr.
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c (add_range):
Add "label" param.
(test_show_locus): Add examples of labels to various tests. Tweak
the "very wide_line" test case and duplicate it, to cover the
boundary values for clipping of labels against the left-margin.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add
diagnostic-test-show-locus-no-labels.c.
* gcc.dg/pr69554-1.c: Update expected output to show range labels.
Update line numbers of dg-locus directives.
* gcc.dg/pr69627.c: Update expected output to show range labels.
* lib/multiline.exp (proc _build_multiline_regex): Remove
special-case handling of lines with trailing '|'.
libcpp/ChangeLog:
* include/line-map.h (struct location_range): Add "m_label" field.
(class rich_location): Add description of labels to leading
comment.
(rich_location::rich_location): Add "label" param, defaulting to
NULL.
(rich_location::add_range): Likewise.
(struct label_text): New struct.
(class range_label): New abstract base class.
* line-map.c (rich_location::rich_location): Add "label" param;
use it.
(rich_location::add_range): Likewise.
From-SVN: r263564
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From-SVN: r263563
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local variable.
2018-08-15 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
c/
* c-decl.c (start_decl): Do not warn if variables is named as main
and is a local variable.
testsuite/
* gcc.dg/wmain.c: New test.
From-SVN: r263562
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PR tree-optimization/71625 - missing strlen optimization on different array
initialization style (avoid compilation errors on aarch64)
gcc/ChangeLog:
* config/aarch64/aarch64-builtins.c
(aarch64_init_simd_builtin_types): Clear Poly8_t's TYPE_STRING_FLAG.
From-SVN: r263561
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Since there is no branch splitting anymore, the loop is no longer
necessary: pool chunkification can be done in one step.
gcc/ChangeLog:
2018-08-15 Ilya Leoshkevich <iii@linux.ibm.com>
* config/s390/s390.c (s390_reorg): Remove loop.
From-SVN: r263557
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2018-08-15 Iain Sandoe <iain@sandoe.co.uk>
gcc/c:
PR c/19315
* c-decl.c (finish_decl): Don't add the 'extern' storage class to
objects of unknown size.
gcc/testsuite:
PR c/19315
gcc.dg/graphite/pr82451.c: Make array 'a' an extern.
gcc.dg/redecl-10.c: Expect warnings for the static vars with unknown
size.
From-SVN: r263556
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gcc/
2018-08-15 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.c
(darwin_function_switched_text_sections): Delete.
* gcc/config/darwin.h
(TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS): Likewise.
From-SVN: r263555
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* src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
(atomic_mem_res): Add unsynchronized definition for single-threaded.
From-SVN: r263554
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gcc/
2018-08-15 Iain Sandoe <iain@sandoe.co.uk>
PR target/81685
* config/darwin.h: (DEBUG_STR_OFFSETS_SECTION, DEBUG_LOCLISTS_SECTION,
DEBUG_RNGLISTS_SECTION) new macros. (DEBUG_PUBNAMES_SECTION,
DEBUG_PUBTYPES_SECTION) update to include GNU variant.
From-SVN: r263553
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2018-08-15 Martin Liska <mliska@suse.cz>
PR tree-optimization/86925
* predict.c (expr_expected_value_1): When taking
later predictor, assign also probability.
Use fold_build2_initializer_loc in order to fold
the expression in -frounding-math.
2018-08-15 Martin Liska <mliska@suse.cz>
PR tree-optimization/86925
* gcc.dg/predict-20.c: New test.
* gcc.dg/predict-21.c: New test.
From-SVN: r263552
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error instead of a permerror.
/cp
2018-08-15 Paolo Carlini <paolo.carlini@oracle.com>
* decl.c (check_previous_goto_1): When decl_jump_unsafe returns 2
emit an error instead of a permerror.
/testsuite
2018-08-15 Paolo Carlini <paolo.carlini@oracle.com>
* g++.dg/init/goto3.C: Adjust for error instead of permerror.
From-SVN: r263551
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Backport of RISC-V support for libffi go closures
* src/riscv/ffi.c (ffi_call_go, ffi_prep_go_closure): New
functions.
(ffi_call_int): Renamed from ffi_call.
(ffi_call_asm, ffi_closure_inner): Adjust interface.
* src/riscv/ffitarget.h (FFI_GO_CLOSURES): Define.
* src/riscv/sysv.S (ffi_go_closure_asm): New function.
(ffi_closure_asm, ffi_call_asm): Update for adjusted interfaces.
From-SVN: r263550
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* config/i386/i386.c (expand_vec_perm_movs): New method matching movs
patterns.
(expand_vec_perm_1): Try the new method.
* gcc.target/i386/sse2-movs.c: New test.
From-SVN: r263549
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achieved (30) when compiling a small inline assembler snippet)
PR target/86547
* lra-lives.c (remove_some_program_points_and_update_live_ranges):
Check whether lra_live_max_point is 0 before dividing.
From-SVN: r263548
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From-SVN: r263547
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* configure.ac: Check for <sys/random.h>.
* configure, config.h.in: Regenerate.
* intrinsics/random.c [HAVE_SYS_RANDOM_H]: Include <sys/random.h>.
From-SVN: r263543
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As explained in the PR, there's no reason to call the nothrow delete,
we can just use the normal one.
PR libstdc++/86954
* include/bits/stl_tempbuf.h (return_temporary_buffer): Use
non-placement delete.
From-SVN: r263542
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gcc/ChangeLog:
PR tree-optimization/86650
* tree-vrp.c (vrp_prop::check_array_ref): Print an inform message.
(vrp_prop::check_mem_ref): Same.
gcc/testsuite/ChangeLog:
PR tree-optimization/86650
* gcc.dg/Warray-bounds-34.c: New test.
From-SVN: r263541
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2018-08-14 Janus Weil <janus@gcc.gnu.org>
PR fortran/86116
* interface.c (compare_type): Remove a CLASS/TYPE check.
(compare_type_characteristics): New function that behaves like the old
'compare_type'.
(gfc_check_dummy_characteristics, gfc_check_result_characteristics):
Call 'compare_type_characteristics' instead of 'compare_type'.
2018-08-14 Janus Weil <janus@gcc.gnu.org>
PR fortran/86116
* gfortran.dg/generic_34.f90: New test case.
From-SVN: r263540
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* include/std/chrono (__check_overflow): Simplify definition.
(_Checked_integral_constant): Remove.
From-SVN: r263537
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Define a class using std::mutex for when std::atomic<memory_resource*>
cannot be used to implement the default memory resource.
When std::mutex constructor is not constexpr the constant_init trick
won't work, so just define a global and use init_priority for it. The
compiler warns about using reserved priority, so put the definition in a
header file using #pragma GCC system_header to suppress the warning.
PR libstdc++/86846
* src/c++17/default_resource.h: New file, defining default_res.
* src/c++17/memory_resource.cc [ATOMIC_POINTER_LOCK_FREE != 2]
(atomic_mem_res): Define alternative for atomic<memory_resource*>
using a mutex instead of atomics.
From-SVN: r263536
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[ios::failure] p2: "When throwing ios_base::failure exceptions,
implementations should provide values of ec that identify the specific
reason for the failure."
This adds a new overload of __throw_ios_failure that can be passed
errno, to store error_code(errno, system_category()) in the exception
object.
PR libstdc++/85343
* acinclude.m4 (libtool_VERSION): Bump version.
* config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add new symbol version.
Export new symbol.
* configure: Regenerate.
* doc/xml/manual/abi.xml: Document new versions.
* include/bits/fstream.tcc (basic_filebuf<C, T>::underflow)
(basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure.
* include/bits/functexcept.h (__throw_ios_failure(const char*, int)):
Declare new overload.
* src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor
and static member function.
(__throw_ios_failure(const char*, int)): Define.
* src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI]
(__throw_ios_failure(const char*, int)): Define.
* testsuite/util/testsuite_abi.cc: Update known and latest versions.
From-SVN: r263535
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Rope iterators sometimes contain pointers to an internal buffer
inside the iterator itself. When such an iterator is copied, the
copy incorrectly retains pointers to the original.
This patch takes the simple approach of not copying the cached
information when the internal buffer is being used, instead
requiring it to be recomputed when the copied iterator is
dereferenced. An alternative would be to adjust the pointers so
they refer to the buffer in the copy.
2018-08-14 Jeremy Sawicki <jeremy-gcc@sawicki.us>
* include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&))
(_Rope_const_iterator::operator=(const _Rope_const_iterator&))
(_Rope_iterator::operator=(const _Rope_iterator&)): Ensure
copied/assigned rope iterators don't retain pointers to the iterator
they were copied/assigned from.
* testsuite/ext/rope/7.cc: New.
From-SVN: r263534
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if...
* gcc/pretty-print.c (eat_esc_sequence): Swap the foreground and background
colors if the COMMON_LVB_REVERSE_VIDEO flag is set, and clear it thereafter,
as it only works for DBCS.
From-SVN: r263531
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returned by _get_osf_handle().
* gcc/pretty-print.c (mingw_ansi_fputs): Do not call _close() on the handle
returned by _get_osf_handle().
From-SVN: r263530
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From-SVN: r263527
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