* tree-ssa-alias.c (aliasing_component_refs_p): Remove ref2_is_decl
parameter; it has no use in gimple memory model.
(indirect_ref_may_alias_decl_p): Update.
* gcc.c-torture/execute/alias-access-path-1.c: New testcase.
From-SVN: r272510
As mentioned in PR 90770, this is a patch that Debian have been carrying
for some time. The additional unoptimized copies of libstdc++ libs that
get built during each stage are never going to be used, so don't bother
building them.
For a profiled bootstrap this means we won't train the compiler on the
unoptimized library code with assertions enabled, but that doesn't seem
like a big problem, as the same code has already been compiled once for
the main libstdc++ library.
* acinclude.m4 (GLIBCXX_ENABLE_DEBUG): Only do debug build for final
stage of bootstrap.
* configure: Regenerate.
From-SVN: r272509
2019-06-20 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/90937
* trans-types.c (get_formal_from_actual_arglist): Get symbol from
current namespace so it will be freed later. If symbol is of type
character, get an empty character length.
2019-06-20 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/90937
* gfortran.dg/external_procedure_4.f90: New test.
From-SVN: r272506
The current tests wouldn't notice if the vector<bool> contents were
printed in reverse, because it would read the same forwards and
backwards. Change the content so the tests would fail if that happened.
* testsuite/libstdc++-prettyprinters/simple.cc: Use non-palindromic
vector<bool> for test.
* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
From-SVN: r272499
* tree-vect-stmts.c (enum scan_store_kind): New type.
(scan_store_can_perm_p): Change last argument from int * to
vec<enum scan_store_kind> *, record precisely which permutations
need whole vector left shift or that plus VEC_COND_EXPR.
(vectorizable_scan_store): Adjust caller, use whole vector left shift
and additional VEC_COND_EXPR only for those iterations that need it.
From-SVN: r272497
Fix the test for failure in parsecpu's checking of the --with-fpu
argument, and the error message that gets printed when the check
fails.
for gcc/ChangeLog
* config.gcc: Fix ARM --with-fpu checking and error message.
From-SVN: r272496
The current implementation of istream_iterator allows the iterator to be
reused after reaching end-of-stream, so that subsequent reads from the
stream can succeed (e.g. if the stream state has been cleared and stream
position changed from EOF). The P0738R2 paper clarified that the
expected behaviour is to set the stream pointer to null after reaching
end-of-stream, preventing further reads.
This implements that requirement, and adds the new default constructor
to std::ostream_iterator.
* include/bits/stream_iterator.h (istream_iterator::_M_equal()): Make
private.
(istream_iterator::_M_read()): Do not check stream state before
attempting extraction. Set stream pointer to null when extraction
fails (P0738R2).
(operator==(const istream_iterator&, const istream_iterator&)): Change
to be a hidden friend of istream_iterator.
(operator!=(const istream_iterator&, const istream_iterator&)):
Likewise.
(ostream_iterator::ostream_iterator()): Add default constructor.
(ostream_iterator::ostream_iterator(ostream_type*, const C*)): Use
addressof.
* testsuite/24_iterators/istream_iterator/1.cc: New test.
* testsuite/24_iterators/ostream_iterator/1.cc: New test.
* testsuite/24_iterators/ostream_iterator/70766.cc: Also check
constructor taking a string.
* testsuite/24_iterators/ostream_iterator/requirements/constexpr.cc:
New test.
From-SVN: r272491
Have the pretty-printer for 'std::vector<bool>' return a
value of type 'bool' rather than an 'int'.
This way, the type is clear and that can be used for better
display and a 'gdb.Value' constructed from the returned value
will have type 'bool' again, not e.g. 'long long' as happened
previously (at least with GDB 8.2.1 on amd64).
2019-06-19 Michael Weghorn <m.weghorn@posteo.de>
Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90945
* python/libstdcxx/v6/printers.py (StdVectorPrinter._iterator): Use
values of type bool for vector<bool> elements.
* testsuite/libstdc++-prettyprinters/simple.cc: Test vector<bool>.
* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r272490
The change in r263433 broke the contract of the __rotate functions, by no
longer accepting empty ranges. That means that callers which inlined the
old version of std::rotate (without checks) that end up linking to a new
definition of std::__rotate (also without checks) could perform a divide
by zero and crash.
This restores the old contract of the __rotate overloads.
PR libstdc++/90920 partially revert r263433
* include/bits/stl_algo.h (__rotate): Restore checks for empty ranges.
(rotate): Remove checks.
* testsuite/25_algorithms/rotate/90920.cc: New test.
From-SVN: r272489
* attribs.c (get_attribute_namespace): No longer static.
(decl_attributes): Avoid shadowing. Preserve the C++11 form for C++11
attributes.
(attr_noreturn_exclusions): Make it extern.
* attribs.h (get_attribute_namespace): Declare.
* tree-inline.c (function_attribute_inlinable_p): Use
get_attribute_name.
* c-attribs.c (handle_noreturn_attribute): No longer static.
* c-common.h (handle_noreturn_attribute, attr_noreturn_exclusions):
Declare.
* c-format.c (check_function_format): Use get_attribute_name.
* decl.c (duplicate_decls): Give an error when a function is
declared [[noreturn]] after its first declaration.
* parser.c (cp_parser_std_attribute): Don't treat C++11 noreturn
attribute as equivalent to GNU's.
* tree.c (std_attribute_table): Add noreturn.
* g++.dg/warn/noreturn-8.C: New test.
* g++.dg/warn/noreturn-9.C: New test.
* g++.dg/warn/noreturn-10.C: New test.
* g++.dg/warn/noreturn-11.C: New test.
From-SVN: r272486
pie, no-pie and rdynamic are driver options, we can process them in the
relevant place and drop them once dealt with. There's no need to generate
a new header to process the "no_compact_unwind" which is applied on the
basis of the target system.
Support for the -pie, -no_pie and -no_compact_unwind options should ideally
be checked at configure time, however the status quo is to assert that linkers
capable of targeting the relevant systems support these options (i.e. we trust
that the user doesn't attempt to configure inappropriately).
TODO: check the availability of the linker opts in configure rather than
trusting to the user.
This will fix the fail of pie-7.c, which is a result of failing to handle the
no-pie driver option.
2019-06-19 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.h (DRIVER_SELF_SPECS): Add RDYNAMIC, DARWIN_PIE_SPEC
and DARWIN_NOPIE_SPEC.
(RDYNAMIC): New, modified from DARWIN_EXPORT_DYNAMIC.
(DARWIN_PIE_SPEC): Collate from darwin.h and darwin9.h.
(DARWIN_NOPIE_SPEC): Collate from darwin10.h.
(DARWIN_NOCOMPACT_UNWIND): New from darwin10.h
(DARWIN_EXPORT_DYNAMIC): Delete.
* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move no_compact_unwind
and pie options processing to darwin.h.
* config/darwin9.h (DARWIN_PIE_SPEC): Move pie processing to darwin.h
From-SVN: r272484
gcc/c-family/ChangeLog:
PR translation/90156
* c-format.c (function_format_info::format_type): Adjust type.
(function_format_info::is_raw): New member.
(decode_format_type): Adjust signature. Handle "raw" diag attributes.
(decode_format_attr): Adjust call to decode_format_type.
Avoid a redundant call to convert_format_name_to_system_name.
Avoid abbreviating the word "arguments" in a diagnostic.
(format_warning_substr): New function.
(avoid_dollar_number): Quote dollar sign in a diagnostic.
(finish_dollar_format_checking): Same.
(check_format_info): Same.
(struct baltoks_t): New.
(c_opers, c_keywords, cxx_keywords, badwords, contrs): New arrays.
(maybe_diag_unbalanced_tokens, check_tokens, check_plain): New
functions.
(check_format_info_main): Call check_plain. Use baltoks_t. Call
maybe_diag_unbalanced_tokens.
(handle_format_attribute): Spell out the word "arguments" in
a diagnostic.
gcc/testsuite/ChangeLog:
PR translation/90156
* gcc.dg/format/gcc_diag-11.c: Enable.
From-SVN: r272483
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/69499
* match.c (gfc_match_select_type): SELECT TYPE is an executable
statement, and cannot appear in MODULE or SUBMODULE scope.
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/69499
* gfortran.dg/pr69499.f90: New test.
* gfortran.dg/module_error_1.f90: Update dg-error string.
From-SVN: r272482
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/69398
* decl.c (attr_decl): Check for duplicate DIMENSION attribute for a
CLASS entity.
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/69398
* gfortran.dg/pr69398.f90: New test.
From-SVN: r272481
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/87907
* resolve.c (resolve_contained_fntype): Do not dereference a NULL
pointer.
2019-06-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/87907
* gfortran.dg/pr87907.f90: New testcase.
From-SVN: r272480
2019-06-19 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin-driver.c (darwin_driver_init): Fix off-by-one errors
in computing the number of options to be moved.
From-SVN: r272479
* include/std/numeric (reduce(Iter, Iter, T, BinOp)): Fix value
category used in invocable check.
(reduce(Iter, Iter, T)): Pass initial value as rvalue.
* testsuite/26_numerics/reduce/2.cc: New test.
From-SVN: r272477
runtime.concatstring{2,3,4,5} are just wrappers of concatstrings.
These wrappers don't provide any benefit, at least in the C
calling convention we use, where passing arrays by value isn't an
efficient thing. Change it to always use concatstrings.
Also, the cap field of the slice passed to concatstrings is not
necessary. So change it to pass a pointer and a length directly,
which is more efficient than passing a slice header by value.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182539
From-SVN: r272476
This fixes and simplifies the setjmp and non-local goto implementation.
Currently the virtual frame pointer is saved when using __builtin_setjmp or
a non-local goto. Depending on whether a frame pointer is used, this may
either save SP or FP with an immediate offset. However the goto or longjmp
always updates the hard frame pointer.
A receiver veneer in the original function then assigns the hard frame pointer
to the virtual frame pointer, which should, if it works correctly, again assign
SP or FP. However the special elimination code in eliminate_regs_in_insn
doesn't do this correctly unless the frame pointer is used, and even if it
worked by writing SP, the frame pointer would still be corrupted.
A much simpler implementation is to always save and restore the hard frame
pointer. This avoids 2 redundant instructions which add/subtract the virtual
frame offset. A large amount of code can be removed as a result, including all
implementations of TARGET_BUILTIN_SETJMP_FRAME_VALUE (all of which already use
the hard frame pointer). The expansion of nonlocal_goto on PA can be simplied
to just restore the hard frame pointer.
This fixes the most obvious issues, however there are still issues on targets
which define HARD_FRAME_POINTER_IS_FRAME_POINTER (arm, mips).
Each function could have a different hard frame pointer, so a non-local goto
may restore the wrong frame pointer (TARGET_BUILTIN_SETJMP_FRAME_VALUE could
be useful for this).
The i386 TARGET_BUILTIN_SETJMP_FRAME_VALUE was incorrect: if stack_realign_fp
is true, it would save the hard frame pointer value but restore the virtual
frame pointer which according to ix86_initial_elimination_offset can have a
non-zero offset from the hard frame pointer.
The ia64 implementation of nonlocal_goto seems incorrect since the helper
function moves the the frame pointer value into the static chain register
(so this patch does nothing to make it better or worse).
AArch64 + x86-64 bootstrap OK, new test passes on AArch64, x86-64 and Arm.
gcc/
PR middle-end/84521
* builtins.c (expand_builtin_setjmp_setup): Save
hard_frame_pointer_rtx.
(expand_builtin_setjmp_receiver): Do not emit sfp = fp move since we
restore fp.
* function.c (expand_function_start): Save hard_frame_pointer_rtx for
non-local goto.
* lra-eliminations.c (eliminate_regs_in_insn): Remove sfp = fp
elimination code.
(remove_reg_equal_offset_note): Remove unused function.
* reload1.c (eliminate_regs_in_insn): Remove sfp = hfp elimination
code.
* config/arc/arc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
(arc_builtin_setjmp_frame_value): Remove function.
* config/avr/avr.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
(avr_builtin_setjmp_frame_value): Remove function.
* config/i386/i386.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
(ix86_builtin_setjmp_frame_value): Remove function.
* config/pa/pa.md (nonlocal_goto): Remove FP adjustment.
* config/sparc/sparc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
(sparc_builtin_setjmp_frame_value): Remove function.
* config/vax/vax.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
(vax_builtin_setjmp_frame_value): Remove function.
* config/xtensa/xtensa.c (xtensa_frame_pointer_required): Force frame
pointer if has_nonlocal_label.
testsuite/
PR middle-end/84521
* gcc.c-torture/execute/pr84521.c: New test.
From-SVN: r272473
* doc/md.texi: Document vec_shl_<mode> pattern.
* optabs.def (vec_shl_optab): New optab.
* optabs.c (shift_amt_for_vec_perm_mask): Add shift_optab
argument, if == vec_shl_optab, check for left whole vector shift
pattern rather than right shift.
(expand_vec_perm_const): Add vec_shl_optab support.
* optabs-query.c (can_vec_perm_var_p): Mention also vec_shl optab
in the comment.
* tree-vect-generic.c (lower_vec_perm): Support permutations which
can be handled by vec_shl_optab.
* tree-vect-stmts.c (scan_store_can_perm_p): New function.
(check_scan_store): Use it.
(vectorizable_scan_store): If target can't do normal permutations,
try to use whole vector left shifts and if needed a VEC_COND_EXPR
after it.
* config/i386/sse.md (vec_shl_<mode>): New expander.
* gcc.dg/vect/vect-simd-8.c: If main is defined, don't include
tree-vect.h nor call check_vect.
* gcc.dg/vect/vect-simd-9.c: Likewise.
* gcc.dg/vect/vect-simd-10.c: New test.
* gcc.target/i386/sse2-vect-simd-8.c: New test.
* gcc.target/i386/sse2-vect-simd-9.c: New test.
* gcc.target/i386/sse2-vect-simd-10.c: New test.
* gcc.target/i386/avx2-vect-simd-8.c: New test.
* gcc.target/i386/avx2-vect-simd-9.c: New test.
* gcc.target/i386/avx2-vect-simd-10.c: New test.
* gcc.target/i386/avx512f-vect-simd-8.c: New test.
* gcc.target/i386/avx512f-vect-simd-9.c: New test.
* gcc.target/i386/avx512f-vect-simd-10.c: New test.
From-SVN: r272472
For string concatenation, string to/from byte or rune slice
conversion, and int to string conversion, if the result does not
escape, we can allocate a small (32-element, or 4-byte for int to
string) buffer on stack, and pass it to the runtime function. If
the result fits in the buffer, it doesn't need to do a heap
allocation.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182538
From-SVN: r272468
2019-06-19 Jim MacArthur <jim.macarthur@codethink.co.uk>
Mark Eggleston <mark.eggleston@codethink.com>
PR fortran/89103
* gfortran.texi: Add -fdec-blank-format-item
* invoke.texi: Add option to list of options.
* invoke.texi: Add to section on Commas in FORMAT specifications.
* io.c (check_format): At FMT_RPAREN goto finished if
-fdec-blank-format-item otherwise set error string.
* lang.opt: Add new option.
* options.c (set_dec_flags): Add SET_BITFLAG for
flag_dec_format_defaults.
* gfortran.dg/dec_format_empty_item_1.f: New test.
* gfortran.dg/dec_format_empty_item_2.f: New test.
* gfortran.dg/dec_format_empty_item_3.f: New test.
Co-Authored-By: Mark Eggleston <mark.eggleston@codethink.com>
From-SVN: r272467
If a string([]byte) conversion is used immediately in a string
concatenation, we don't need to copy the backing store of the
byte slice, as the runtime function doesn't hold any reference
to it.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/182437
* go.dg/concatstring.go: New test.
From-SVN: r272460
These new (non-parallel) algorithms were added to C++17 along with the
parallel algorithms, but were missing from libstdc++.
* include/bits/algorithmfwd.h: Change title of doc group.
* include/bits/stl_algo.h (for_each_n): Add new C++17 algorithm from
P0024R2.
* include/bits/stl_numeric.h: Define doc group and add algos to it.
* include/std/numeric (__is_random_access_iter): New internal trait.
(reduce, transform_reduce, exclusive_scan, inclusive_scan)
(transform_exclusive_scan, transform_inclusive_scan): Likewise.
* testsuite/25_algorithms/for_each/for_each_n.cc: New test.
* testsuite/26_numerics/exclusive_scan/1.cc: New test.
* testsuite/26_numerics/inclusive_scan/1.cc: New test.
* testsuite/26_numerics/reduce/1.cc: New test.
* testsuite/26_numerics/transform_exclusive_scan/1.cc: New test.
* testsuite/26_numerics/transform_inclusive_scan/1.cc: New test.
* testsuite/26_numerics/transform_reduce/1.cc: New test.
* testsuite/util/testsuite_iterators.h (test_container::size()): New
member function.
From-SVN: r272459
Stack pointer adjustment code in prologue missed a case of no
callee-saved registers and a stack frame size bigger than 128 bytes.
Handle that case.
This fixes the following gcc tests with call0 ABI:
gcc.c-torture/execute/stdarg-2.c
gcc.dg/torture/pr55882.c
gcc.dg/torture/pr57569.c
2019-06-18 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_expand_prologue): Add stack
pointer adjustment for the case of no callee-saved registers and
stack frame bigger than 128 bytes.
From-SVN: r272455
H.J. Lu
Jan Hubicka
Jonathan Wakely
Marek Polacek
Thomas Koenig
Tom de Vries
Martin Liska
Jakub Jelinek
Alexandre Oliva
GCC Administrator
Michael Weghorn
Martin Sebor
Iain Sandoe
Steven G. Kargl
Maya Rashish
Ian Lance Taylor
Uros Bizjak
Wilco Dijkstra
Jim MacArthur
Kugan Vivekanandarajah
Cherry Zhang
Max Filippov
Julian Brown
Thomas Schwinge