Jakub Jelinek [Tue, 30 May 2017 07:26:00 +0000 (09:26 +0200)]
backport: re PR ipa/77587 (C compiler produces incorrect stack alignment with __attribute__((weak)))
Backported from mainline
2016-09-19 Jakub Jelinek <jakub@redhat.com>
Jan Hubicka <jh@suse.cz>
PR target/77587
* cgraph.c (cgraph_node::rtl_info): Pass &avail to
ultimate_alias_target call, return NULL if avail < AVAIL_AVAILABLE.
Call ultimate_alias_target just once, not up to 4 times.
* gcc.dg/pr77587.c: New test.
* gcc.dg/pr77587a.c: New file.
Jakub Jelinek [Tue, 30 May 2017 07:23:20 +0000 (09:23 +0200)]
backport: re PR middle-end/77594 (double computation for __builtin_sub_overflow (0, ...))
Backported from mainline
2016-09-16 Jakub Jelinek <jakub@redhat.com>
Eric Botcazou <ebotcazou@adacore.com>
PR middle-end/77594
* internal-fn.c (expand_arith_overflow) <case MINUS_EXPR>: Don't fall
through into expand_addsub_overflow after expand_neg_overflow.
Jakub Jelinek [Tue, 30 May 2017 07:21:41 +0000 (09:21 +0200)]
backport: re PR fortran/77500 (ICE in gfc_trans_omp_atomic, at fortran/trans-openmp.c:2822)
Backported from mainline
2016-09-08 Jakub Jelinek <jakub@redhat.com>
PR fortran/77500
* trans-openmp.c (gfc_trans_omp_atomic): For atomic write or
swap, don't try to look through GFC_ISYM_CONVERSION. In other cases,
check that value.function.isym is non-NULL before dereferencing it.
Jakub Jelinek [Tue, 30 May 2017 07:18:37 +0000 (09:18 +0200)]
backport: re PR c++/77363 (Missing debug information in DWARF)
Backported from mainline
2016-08-30 Jakub Jelinek <jakub@redhat.com>
PR debug/77363
* dwarf2out.c (modified_type_die): Use lookup_type_die (type)
instead of lookup_type_die (type_main_variant (type)) even for array
types.
Jakub Jelinek [Tue, 30 May 2017 07:15:49 +0000 (09:15 +0200)]
backport: re PR target/71910 (ICE on valid OpenMP code)
Backported from mainline
2016-08-16 Jakub Jelinek <jakub@redhat.com>
PR target/71910
* tree-cfg.c (execute_fixup_cfg): Add node variable, use it. Before inlining,
add cgraph edge for the added __builtin_unreachable call.
Jakub Jelinek [Tue, 30 May 2017 07:12:08 +0000 (09:12 +0200)]
backport: re PR c/67410 (c/c-typeck.c references out of bounds array)
Backported from mainline
2016-08-12 Jakub Jelinek <jakub@redhat.com>
Martin Liska <mliska@suse.cz>
PR c/67410
* c-typeck.c (set_nonincremental_init_from_string): Use / instead of
% to determine val element to change. Assert that
wchar_bytes * charwidth fits into val array.
Jakub Jelinek [Tue, 30 May 2017 07:09:01 +0000 (09:09 +0200)]
backport: re PR c/72816 (ICE on x86_64-linux-gnu (tree check: expected tree that contains ‘decl with RTL’ structure, have ‘field_decl’ in set_decl_rtl, at emit-rtl.c:1282))
Backported from mainline
2016-08-11 Jakub Jelinek <jakub@redhat.com>
PR c/72816
* c-decl.c (grokdeclarator): When adding TYPE_DOMAIN for flexible
array member through typedef, for orig_qual_indirect == 0 clear
orig_qual_type.
Martin Liska [Mon, 29 May 2017 09:12:33 +0000 (11:12 +0200)]
Backport r246961
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-18 Martin Liska <mliska@suse.cz>
PR gcov-profile/78783
* gcov-tool.c (gcov_output_files): Validate that destination
file is either removed by the tool or by a user.
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-18 Martin Liska <mliska@suse.cz>
PR gcov-profile/78783
* libgcov-driver.c (gcov_get_filename): New function.
Martin Liska [Mon, 29 May 2017 09:11:42 +0000 (11:11 +0200)]
Backport r246848
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-11 Martin Liska <mliska@suse.cz>
PR ipa/80212
* cgraph.c (cgraph_node::dump): Dump calls_comdat_local.
* ipa-split.c (split_function): Create a local comdat symbol
if caller is in a comdat group.
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-11 Martin Liska <mliska@suse.cz>
Martin Liska [Mon, 29 May 2017 09:09:27 +0000 (11:09 +0200)]
Backport r246804
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-10 Martin Liska <mliska@suse.cz>
PR gcov-profile/80224
* gcov.c (print_usage): Fix usage string.
(get_gcov_intermediate_filename): Remove.
(output_gcov_file): Use both for normal and intermediate format.
(generate_results): Do not initialize special file for
intermediate format.
Martin Liska [Mon, 29 May 2017 09:08:48 +0000 (11:08 +0200)]
Backport r246530
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-03-28 Richard Biener <rguenther@suse.de>
PR ipa/80205
* tree-inline.c (copy_phis_for_bb): Do not create PHI node
without arguments, generate default definition of a SSA name.
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-03-28 Martin Liska <mliska@suse.cz>
Martin Liska [Mon, 29 May 2017 09:08:14 +0000 (09:08 +0000)]
Backport r246525
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-03-28 Martin Liska <mliska@suse.cz>
PR ipa/80104
* cgraphunit.c (cgraph_node::expand_thunk): Mark argument of a
thunk call as DECL_GIMPLE_REG_P when vector or complex type.
2017-05-29 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-03-28 Martin Liska <mliska@suse.cz>
Andreas Tobler [Fri, 19 May 2017 18:39:54 +0000 (20:39 +0200)]
backport: unwind-arm.h: Make _Unwind_GetIP...
2017-05-19 Andreas Tobler <andreast@gcc.gnu.org>
Backport from mainline
2017-05-17 Andreas Tobler <andreast@gcc.gnu.org>
* config/arm/unwind-arm.h: Make _Unwind_GetIP, _Unwind_GetIPInfo and
_Unwind_SetIP available as functions for arm*-*-freebsd*.
* config/arm/unwind-arm.c: Implement the above.
Janne Blomqvist [Fri, 19 May 2017 13:30:45 +0000 (16:30 +0300)]
Don't assume __secure_getenv is available
Glibc 2.17 made __secure_getenv an officially supported function, and
renamed it secure_getenv. The libgfortran configure has checked for
both of these, per
https://sourceware.org/glibc/wiki/Tips_and_Tricks/secure_getenv.
Unfortunately, while the dynamical library (libc.so) retains the
__secure_getenv symbol for backwards compatibility, the static library
(libc.a) does not. This means that a libgfortran.a compiled against an
older glibc will not work if one tries to link against a newer
libc.a. This creates problems for providing gfortran binary
distributions that work on as many target systems as possible.
Thus, retain the support for __secure_getenv but call it only via a
weak reference.
Backported from trunk.
2017-05-19 Janne Blomqvist <jb@gcc.gnu.org>
* libgfortran.h: HAVE_SECURE_GETENV: Don't check
HAVE___SECURE_GETENV.
* environ/runtime.c (secure_getenv): Use __secure_getenv via a
weak reference.
Jonathan Wakely [Thu, 18 May 2017 15:31:41 +0000 (16:31 +0100)]
Skip C tests if test flags include C++ options
Backport from mainline
2016-08-02 Jonathan Wakely <jwakely@redhat.com>
* testsuite/18_support/bad_exception/23591_thread-1.c: Skip test if
options are present that aren't valid for C.
* testsuite/abi/header_cxxabi.c: Likewise.
Jonathan Wakely [Thu, 18 May 2017 15:31:02 +0000 (16:31 +0100)]
PR69699 document why __GLIBCXX__ macro is useless
Backport from mainline
2017-01-17 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/69699
* doc/xml/manual/abi.xml (abi.versioning.history): Explain why the
_GLIBCXX__ macro is not useful. Remove redundant date information
and link to the GCC release timeline.
(abi.versioning.active): Move partial sentence into the previous
paragraph.
* doc/html/*: Regenerate.
Backport from mainline
2016-11-09 Tim Shen <timshen@google.com>
PR libstdc++/78236
* libstdc++-v3/include/bits/regex.h (regex_iterator::regex_iterator()):
Define end() as _M_pregex == nullptr.
* libstdc++-v3/include/bits/regex.tcc (regex_iterator::operator==(),
regex_iterator::operator++()): Fix operator==() and operator++() to
look at null-ness of _M_pregex on both sides.
* testsuite/28_regex/regression.cc: New testcase.
Jonathan Wakely [Thu, 18 May 2017 09:23:29 +0000 (10:23 +0100)]
Enable printers and xmethods for std::__cxx11::list
Backport from mainline
2016-10-11 Jonathan Wakely <jwakely@redhat.com>
* python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
Register printer for std::__cxx11::list.
* python/libstdcxx/v6/xmethods.py (ListMethodsMatcher.match): Match
std::__cxx11::list as well as std::list.
PR c/79756
* c-common.c (c_common_mark_addressable_vec): Look through
C_MAYBE_CONST_EXPR.
* gcc.dg/vector-1.c: New testcase.
2017-02-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/79732
* tree-inline.c (expand_call_inline): Handle anonymous
SSA lhs properly when inlining a function without return
value.
* gcc.dg/torture/pr79732.c: New testcase.
2017-02-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/79666
* tree-vrp.c (extract_range_from_binary_expr_1): Make sure
to not symbolically negate if that may introduce undefined
overflow.
Richard Biener [Wed, 10 May 2017 07:53:45 +0000 (07:53 +0000)]
Backport PRs 80122, 80222, 80334, 80539
2017-05-10 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-03-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/80122
* tree-inline.c (copy_bb): Do not expans va-arg packs or
va_arg_pack_len when the inlined call stmt requires pack
expansion itself.
* tree-inline.h (struct copy_body_data): Make call_stmt a gcall *.
* gcc.dg/torture/pr80122.c: New testcase.
2017-03-28 Richard Biener <rguenther@suse.de>
PR middle-end/80222
* gimple-fold.c (gimple_fold_indirect_ref): Do not touch
TYPE_REF_CAN_ALIAS_ALL references.
* fold-const.c (fold_indirect_ref_1): Likewise.
* g++.dg/pr80222.C: New testcase.
2017-04-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/80334
* tree-ssa-loop-ivopts.c (rewrite_use_address): Properly
preserve alignment of accesses.
* g++.dg/torture/pr80334.C: New testcase.
2017-04-27 Richard Biener <rguenther@suse.de>
PR middle-end/80539
* tree-chrec.c (chrec_fold_plus_poly_poly): Deal with not
being in loop-closed SSA form conservatively.
(chrec_fold_multiply_poly_poly): Likewise.
2016-05-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
PR target/69868 + swap optimization backports
* config/rs6000/rs6000.c (swap_web_entry): Enlarge
special_handling bitfield.
(special_handling_values): Add SH_XXPERMDI, SH_CONCAT, SH_VPERM,
and SH_VPERM_COMP.
(const_load_sequence_p): New.
(load_comp_mask_p): New.
(v2df_reduction_p): New.
(rtx_is_swappable_p): Perform special handling for XXPERMDI and
for reductions.
(insn_is_swappable_p): Perform special handling for VEC_CONCAT,
V2DF reductions, and various permutes.
(adjust_xxpermdi): New.
(adjust_concat): New.
(find_swapped_load_and_const_vector): New.
(replace_const_vector_in_load): New.
(adjust_vperm): New.
(adjust_vperm_comp): New.
(handle_special_swappables): Call adjust_xxpermdi, adjust_concat,
adjust_vperm, and adjust_vperm_comp.
(replace_swap_with_copy): Allow vector NOT operations to also be
replaced by copies.
(dump_swap_insn_table): Handle new special handling values.
[gcc/testsuite]
2016-05-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Janus Weil [Mon, 1 May 2017 10:51:22 +0000 (12:51 +0200)]
backport: re PR fortran/80392 ([OOP] ICE with allocatable polymorphic function result in a procedure pointer component)
2017-05-01 Janus Weil <janus@gcc.gnu.org>
Backport from trunk
PR fortran/80392
* trans-types.c (gfc_get_derived_type): Prevent an infinite loop when
building a derived type that includes a procedure pointer component
with a polymorphic result.
2017-05-01 Janus Weil <janus@gcc.gnu.org>
Backport from trunk
PR fortran/80392
* gfortran.dg/proc_ptr_comp_49.f90: New test case.
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