Alan Modra [Tue, 29 Aug 2017 08:27:02 +0000 (17:57 +0930)]
[RS6000] linux startfile/endfile
These need to match the gnu-user.h definitions to support
--enable-default-pie. Otherwise we end up linking the wrong startup
files when defaulting to PIE.
PR target/81170
PR target/81295
* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
match gnu-user.h startfile.
(ENDFILE_LINUX_SPEC): Similarly.
Alan Modra [Tue, 29 Aug 2017 08:25:17 +0000 (17:55 +0930)]
PR driver/81523: Make -static override -pie
-static and -pie together behave differently depending on whether GCC is
configured with --enable-default-pie. On x86, "-static -pie" fails to
create executable when --enable-default-pie isn't used, but creates a
static executable when --enable-default-pie is used. This patch makes
-static completely override -pie to create a static executable, regardless
if --enable-default-pie is used to configure GCC.
PR target/81170
PR target/81295
PR driver/81523
* gcc.c (NO_PIE_SPEC): Delete.
(PIE_SPEC): Define as !no-pie/pie. Move static|shared|r
exclusion..
(LINK_PIE_SPEC): ..to here.
(LINK_COMMAND_SPEC): Support -no-pie.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
chain of crtbegin*.o selection, update for PIE_SPEC changes and
format.
(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
(ENDFILE_CRTEND_SPEC): Similarly.
Georg-Johann Lay [Tue, 22 Aug 2017 07:57:40 +0000 (07:57 +0000)]
backport: re PR target/81910 ([avr] ICE with "address" attribute on type)
Backport from 2017-08-22 trunk r251256.
PR target/81910
* config/avr/avr.c (avr_handle_addr_attribute): Early return if
not VAR_P. Filter attribute warnings with OPT_Wattributes.
(avr_attribute_table) <io, io_low, address>: Initialize
.decl_required with true.
Jakub Jelinek [Mon, 31 Jul 2017 08:56:03 +0000 (10:56 +0200)]
re PR sanitizer/81604 (Ubsan type reporting can be bogus in some cases)
PR sanitizer/81604
* ubsan.c (ubsan_type_descriptor): For UBSAN_PRINT_ARRAY don't
change type to the element type, instead add eltype variable and
use it where we are interested in the element type.
Jakub Jelinek [Thu, 27 Jul 2017 09:32:33 +0000 (11:32 +0200)]
re PR tree-optimization/81555 (Wrong code at -O1)
PR tree-optimization/81555
PR tree-optimization/81556
* tree-ssa-reassoc.c (rewrite_expr_tree): Add NEXT_CHANGED argument,
if true, force CHANGED for the recursive invocation.
(reassociate_bb): Remember original length of ops array, pass
len != orig_len as NEXT_CHANGED in rewrite_expr_tree call.
* gcc.c-torture/execute/pr81555.c: New test.
* gcc.c-torture/execute/pr81556.c: New test.
backport: re PR target/79883 (avr i18n: untranslated "interrupt" or "signal")
gcc/
Backport from 2016-06-15 trunk r237486.
Backport from 2017-07-12 trunk r250156.
PR target/79883
PR target/67353
* config/avr/avr.c (avr_set_current_function): Warn misspelled ISR
only if -Wmisspelled-isr is on. In diagnostic messages: Quote
keywords and (parts of) identifiers.
[WITH_AVRLIBC]: Warn functions named "ISR", "SIGNAL" or "INTERUPT".
* doc/invoke.texi (AVR Options) <-Wmisspelled-isr>: Decument.
backport: re PR lto/81487 ([mingw32] ld.exe: error: asprintf failed)
lto-plugin/
Backport from 2017-07-26 gcc-7-branch r250562.
PR lto/81487
* lto-plugin.c (claim_file_handler): Use xasprintf instead of
asprintf.
[hi!=0]: Swap hi and lo arguments supplied to xasprintf.
gcc/
Backport from 2017-07-26 gcc-7-branch r250562.
PR 81487
* hsa-brig.c (brig_init): Use xasprintf instead of asprintf.
* tree-ssa-structalias.c (alias_get_name): Same.
Ian Lance Taylor [Thu, 20 Jul 2017 22:03:48 +0000 (22:03 +0000)]
re PR go/81393 (Bootstrap failure on s390x-linux while building libgo against recent glibc)
PR go/81393
syscall: don't use GETREGS/SETREGS on s390
They were removed in recent glibc.
This is a backport of https://golang.org/cl/48231 to earlier branches.
Define required type and constants in syscall package directly, don't
try to pull them from the system header files.
Michael Meissner [Wed, 19 Jul 2017 22:05:20 +0000 (22:05 +0000)]
backport: re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries)
[gcc]
2017-07-19 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2017-07-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/81193
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If GLIBC
provides the hardware capability bits, define the macro
__BUILTIN_CPU_SUPPORTS__.
* config/rs6000/rs6000.c (cpu_expand_builtin): Generate a warning
if GLIBC does not provide the hardware capability bits. Add a
gcc_unreachable call if the built-in cpu function is neither
__builtin_cpu_is nor __builtin_cpu_supports.
* doc/extend.texi (PowerPC built-in functions): Document that
GLIBC 2.23 or newer is needed by __builtin_cpu_is and
__builtin_cpu_supports. Document the macros defined by GCC if the
newer GLIBC is available.
[gcc/testsuite]
2017-07-19 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2017-07-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/81193
* gcc.target/powerpc/cpu-builtin-1.c: Change test to use #ifdef
__BUILTIN_CPU_SUPPORTS to see if the GLIBC is new enough that
__builtin_cpu_is and __builtin_cpu_supports are supported.
re PR target/81471 (internal compiler error: in curr_insn_transform, at lra-constraints.c:3495)
PR target/81471
* config/i386/i386.md (rorx_immediate_operand): New mode attribute.
(*bmi2_rorx<mode>3_1): Use rorx_immediate_operand as
operand 2 predicate.
(*bmi2_rorxsi3_1_zext): Use const_0_to_31_operand as
operand 2 predicate.
(ror,rol -> rorx splitters): Use const_int_operand as
operand 2 predicate.
testsuite/ChangeLog:
PR target/81471
* gcc.target/i386/pr81471.c: New test.
2017-03-23 Kelvin Nilsen <kelvin@gcc.gnu.org>
* config/rs6000/rs6000.c (rs6000_option_override_internal): Change
handling of certain combinations of target options, including the
combinations -mpower8-vector vs. -mno-vsx, -mpower8-vector vs.
-mno-power8-vector, and -mpower9_dform vs. -mno-power9-vector.
2017-03-27 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/80103
* config/rs6000/rs6000.c (rs6000_option_override_internal): Add
special handling for target option conflicts between dform options
(-mpower9-dform, -mpower9-dform-vector, -mpower9-dform-scalar) and
-mno-direct-move.
2017-05-08 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/80101
* config/rs6000/power6.md: Replace store_data_bypass_p calls with
rs6000_store_data_bypass_p in seven define_bypass directives and
in several comments.
* config/rs6000/rs6000-protos.h: Add prototype for
rs6000_store_data_bypass_p function.
* config/rs6000/rs6000.c (rs6000_store_data_bypass_p): New
function implements slightly different (rs6000-specific) semantics
than store_data_bypass_p, returning false rather than aborting
with assertion error when arguments do not satisfy the
requirements of store data bypass.
(rs6000_adjust_cost): Replace six calls of store_data_bypass_p with
rs6000_store_data_bypass_p.
gcc/testsuite/ChangeLog:
2017-07-14 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backports from trunk:
2017-01-23 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/66669
* gcc.dg/loop-8.c: Modify dg-skip-if directive to exclude this
test on powerpc targets.
2017-02-08 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/68972
* g++.dg/cpp1y/vla-initlist1.C: Add dg-skip-if directive to
disable this test on power architecture.
2017-03-23 Kelvin Nilsen <kelvin@gcc.gnu.org>
* gcc.target/powerpc/p9-options-1.c: New test.
2017-03-27 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/80103
* gcc.target/powerpc/pr80103-1.c: New test.
2017-05-08 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/80101
* gcc.target/powerpc/pr80101-1.c: New test.
Jonathan Wakely [Tue, 11 Jul 2017 12:38:35 +0000 (13:38 +0100)]
PR libstdc++/80316 make promise::set_value throw no_state error
Backport from mainline
2017-04-21 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/80316
* include/std/future (_State_baseV2::_Setter::operator()): Remove
_S_check calls that are done after the pointer to the shared state is
already dereferenced.
(_State_baseV2::_Setter<_Res, void>): Define specialization for void
as partial specialization so it can be defined within the definition
of _State_baseV2.
(_State_baseV2::__setter): Call _S_check.
(_State_baseV2::__setter(promise<void>*)): Add overload for use by
promise<void>::set_value and promise<void>::set_value_at_thread_exit.
(promise<T>, promise<T&>, promise<void>): Make _State a friend.
(_State_baseV2::_Setter<void, void>): Remove explicit specialization.
(promise<void>::set_value, promise<void>::set_value_at_thread_exit):
Use new __setter overload.
* testsuite/30_threads/promise/members/at_thread_exit2.cc: New test.
* testsuite/30_threads/promise/members/set_exception.cc: Test
promise<T&> and promise<void> specializations.
* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
Test for no_state error condition.
* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
Joseph Myers [Tue, 4 Jul 2017 10:23:57 +0000 (11:23 +0100)]
Use ucontext_t not struct ucontext in linux-unwind.h files.
Current glibc no longer gives the ucontext_t type the tag struct
ucontext, to conform with POSIX namespace rules. This requires
various linux-unwind.h files in libgcc, that were previously using
struct ucontext, to be fixed to use ucontext_t instead. This is
similar to the removal of the struct siginfo tag from siginfo_t some
years ago.
This patch changes those files to use ucontext_t instead. As the
standard name that should be unconditionally safe, so this is not
restricted to architectures supported by glibc, or conditioned on the
glibc version.
Tested compilation together with current glibc with glibc's
build-many-glibcs.py.
Michael Meissner [Fri, 30 Jun 2017 12:09:12 +0000 (12:09 +0000)]
backport: re PR target/80510 (Optimize Power7/power8 Altivec load/stores)
[gcc]
2017-06-30 Michael Meissner <meissner@linux.vnet.ibm.com>
Backport from mainline
2017-06-23 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80510
* config/rs6000/rs6000.md (ALTIVEC_DFORM): Do not allow DImode in
32-bit, since indexed is not valid for DImode.
(mov<mode>_hardfloat32): Reorder ISA 2.07 load/stores before ISA
3.0 d-form load/stores to be the same as mov<mode>_hardfloat64.
(define_peephole2 for Altivec d-form load): Add 32-bit support.
(define_peephole2 for Altivec d-form store): Likewise.
[gcc/testsuite]
2017-06-30 Michael Meissner <meissner@linux.vnet.ibm.com>
Backport from mainline
2017-06-23 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80510
* gcc.target/powerpc/pr80510-1.c: Allow test to run on 32-bit.
* gcc.target/powerpc/pr80510-2.c: Likewise.
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