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.
2016-08-15 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/73650
* lra-constraints.c (simple_move_p): If the insn is multiple_sets
it is not a simple move.
2017-01-20 Segher Boessenkool <segher@kernel.crashing.org>
PR target/61729
PR target/77850
* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust address to
read from, for big endian.
2017-04-04 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/60818
* simplify-rtx.c (simplify_binary_operation_1): Do not replace
a compare of comparisons with the thing compared if this results
in a different machine mode.
2017-04-12 Segher Boessenkool <segher@kernel.crashing.org>
PR target/80382
* config/rs6000/sync.md (atomic_load<mode>, atomic_store<mode): Test
for quad_address_p for TImode, instead of just not indexed_address.
2017-04-19 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/80429
* ira.c (split_live_ranges_for_shrink_wrap): Don't split regs that
are only used in debug insns.
2017-05-17 Segher Boessenkool <segher@kernel.crashing.org>
PR middle-end/80692
* real.c (do_compare): Give decimal_do_compare preference over
comparing just the signs.
2017-05-31 Segher Boessenkool <segher@kernel.crashing.org>
PR target/80618
* config/rs6000/vector.md (*vector_uneq<mode>): Write the nor in the
splitter result in the canonical way.
2017-06-09 Segher Boessenkool <segher@kernel.crashing.org>
PR target/80966
* config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Assert that
gen_add3_insn did not fail.
* config/rs6000/rs6000.md (add<mode>3): If asked to add a constant to
r0, construct that number in a temporary reg and add that reg to r0.
If asked to put the result in r0 as well, fail.
2017-06-23 Segher Boessenkool <segher@kernel.crashing.org>
PR middle-end/80902
* builtins.c (expand_builtin_atomic_fetch_op): If emitting code after
a call, force the call to not be a tail call.
gcc/testsuite/
Backports from trunk:
2017-04-04 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/60818
* gcc.c-torture/compile/pr60818.c: New testcase.
2017-05-17 Segher Boessenkool <segher@kernel.crashing.org>
PR middle-end/80692
* gcc.c-torture/execute/pr80692.c: New testcase.
2017-06-09 Segher Boessenkool <segher@kernel.crashing.org>
PR target/80966
* gcc.target/powerpc/stack-limit.c: New testcase.
2017-06-23 Thomas Preud'homme <thomas.preudhomme@arm.com>
Backport from mainline
2017-05-04 Prakhar Bahuguna <prakhar.bahuguna@arm.com>
gcc/
* gcc/config/arm/arm-builtins.c (arm_init_builtins): Rename
__builtin_arm_ldfscr to __builtin_arm_get_fpscr, and rename
__builtin_arm_stfscr to __builtin_arm_set_fpscr.
gcc/testsuite/
* gcc.target/arm/fpscr.c: New file.
PR tree-optimization/43434
* tree-ssa-structalias.c (struct vls_data): New.
(visit_loadstore): Handle all pointer-based accesses.
(compute_dependence_clique): Compute a bitmap of restrict tags
assigned bases and pass it to visit_loadstore.
Jakub Jelinek [Thu, 22 Jun 2017 11:34:39 +0000 (13:34 +0200)]
backport: re PR c++/81154 (OpenMP with shared variable in a template class crash)
Backported from mainline
2017-06-21 Jakub Jelinek <jakub@redhat.com>
PR c++/81154
* semantics.c (handle_omp_array_sections_1, finish_omp_clauses):
Complain about t not being a variable if t is OVERLOAD even
when processing_template_decl.
Backport from mainline
2017-05-26 Martin Liska <mliska@suse.cz>
PR ipa/80663
* g++.dg/ipa/pr80212.C: Remove the test as it does not longer
split at the problematic spot.
* gcc.dg/ipa/pr48195.c: Change 101 to 100 as 101 is no longer
a valid value of the param.
Martin Liska [Thu, 22 Jun 2017 11:16:39 +0000 (13:16 +0200)]
Backport r247371
2017-06-22 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-28 Martin Liska <mliska@suse.cz>
PR driver/56469
* coverage.c (coverage_remove_note_file): New function.
* coverage.h: Declare the function.
* toplev.c (finalize): Clean if an error has been seen.
Martin Liska [Thu, 22 Jun 2017 11:16:16 +0000 (13:16 +0200)]
Backport r246899
2017-06-22 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-04-12 Jan Hubicka <hubicka@ucw.cz>
PR lto/69953
* ipa-visibility.c (non_local_p): Fix typos.
(localize_node): When localizing symbol in same comdat group,
dissolve the group only when we know external symbols are going
to be privatized.
(function_and_variable_visibility): Do not localize DECL_EXTERNAL.
Martin Liska [Thu, 22 Jun 2017 11:14:13 +0000 (13:14 +0200)]
Backport r241380
2017-06-22 Martin Liska <mliska@suse.cz>
Backport from mainline
2016-10-20 Martin Liska <mliska@suse.cz>
PR lto/78049
* lto-streamer-in.c (fixup_call_stmt_edges_1): Replace value
comparison with STMT_UID_NOT_IN_RANGE.
(fixup_call_stmt_edges): Do not fixup edges of a thunk in
LTRANS.
Jakub Jelinek [Thu, 22 Jun 2017 11:11:43 +0000 (13:11 +0200)]
backport: re PR libgomp/80822 (libgomp incorrect affinity when OMP_PLACES=threads)
Backported from mainline
2017-05-30 Jakub Jelinek <jakub@redhat.com>
PR libgomp/80822
* config/linux/affinity.c (gomp_affinity_init_level_1): New function.
(gomp_affinity_init_level): Use it. Always analyze the core and thread
sibling lists, depending on level just pick up what CPUs to put
together into a place vs. whether add multiple ordered places.
Jakub Jelinek [Thu, 22 Jun 2017 11:09:08 +0000 (13:09 +0200)]
backport: re PR middle-end/80809 (Multi-free error for variable size array used within OpenMP task)
Backported from mainline
2017-05-22 Jakub Jelinek <jakub@redhat.com>
PR middle-end/80809
* omp-low.c (finish_taskreg_remap): New function.
(finish_taskreg_scan): If unit size of ctx->record_type
is non-constant, unshare the size expression and replace
decls in it with possible outer var refs.
* testsuite/libgomp.c/pr80809-2.c: New test.
* testsuite/libgomp.c/pr80809-3.c: New test.
Jakub Jelinek [Thu, 22 Jun 2017 11:08:25 +0000 (13:08 +0200)]
backport: re PR middle-end/80809 (Multi-free error for variable size array used within OpenMP task)
Backported from mainline
2017-05-22 Jakub Jelinek <jakub@redhat.com>
PR middle-end/80809
* gimplify.c (omp_add_variable): For GOVD_DEBUG_PRIVATE use
GOVD_SHARED rather than GOVD_PRIVATE with it.
(gimplify_adjust_omp_clauses_1, gimplify_adjust_omp_clauses): Expect
GOVD_SHARED rather than GOVD_PRIVATE with GOVD_DEBUG_PRIVATE.
Jakub Jelinek [Thu, 22 Jun 2017 11:07:44 +0000 (13:07 +0200)]
backport: re PR middle-end/80853 (OpenMP ICE in build_outer_var_ref with array reduction)
Backported from mainline
2017-05-22 Jakub Jelinek <jakub@redhat.com>
PR middle-end/80853
* omp-low.c (lower_reduction_clauses): Pass OMP_CLAUSE_PRIVATE
as last argument to build_outer_var_ref for pointer bases of array
section reductions.
Richard Biener [Thu, 22 Jun 2017 07:30:03 +0000 (07:30 +0000)]
backport: [multiple changes]
2017-06-22 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-04-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/80453
* tree-ssa-sccvn.h (struct vn_phi_s): Add cclhs and ccrhs members.
* tree-ssa-sccvn.c (cond_stmts_equal_p): Use recorded lhs and rhs
from the conditions.
(vn_phi_eq): Pass them down.
(vn_phi_lookup): Record them.
(vn_phi_insert): Likewise.
2017-04-07 Richard Biener <rguenther@suse.de>
PR middle-end/80341
* tree.c (get_unwidened): Also handle ! for_type case for
INTEGER_CSTs.
* convert.c (do_narrow): Split out from ...
(convert_to_integer_1): ... here. Do not pass final truncation
type to get_unwidened for TRUNC_DIV_EXPR.
* gcc.dg/torture/pr80341.c: New testcase.
2017-04-04 Richard Biener <rguenther@suse.de>
PR middle-end/80281
* match.pd (A + (-B) -> A - B): Make sure to preserve unsigned
arithmetic done for the negate or the plus. Simplify.
(A - (-B) -> A + B): Likewise.
* fold-const.c (split_tree): Make sure to not negate pointers.
Richard Biener [Thu, 22 Jun 2017 07:22:13 +0000 (07:22 +0000)]
backport: [multiple changes]
2017-06-22 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-01-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/79256
* targhooks.c (default_builtin_vector_alignment_reachable): Honor
BIGGEST_FIELD_ALIGNMENT and ADJUST_FIELD_ALIGN to fix up bogus
alignment on TYPE.
* tree.c (build_aligned_type): Set TYPE_USER_ALIGN.
2017-01-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/69264
* target.def (vector_alignment_reachable): Improve documentation.
* doc/tm.texi: Regenerate.
* targhooks.c (default_builtin_vector_alignment_reachable): Simplify
and add a comment.
* tree-vect-data-refs.c (vect_supportable_dr_alignment): Revert
earlier changes with respect to TYPE_USER_ALIGN.
(vector_alignment_reachable_p): Likewise. Improve dumping.
* g++.dg/torture/pr69264.C: New testcase.
2017-02-09 Richard Biener <rguenther@suse.de>
PR tree-optimization/69823
* graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
Properly enumerate all BBs in the region. Use auto_vec.
Michael Meissner [Thu, 22 Jun 2017 00:56:55 +0000 (00:56 +0000)]
backport: re PR target/80510 (Optimize Power7/power8 Altivec load/stores)
2017-06-21 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from mainline
PR target/80510
* gcc.target/powerpc/pr80510-1.c: Restrict test to 64-bit until
32-bit support is added. Change ITYPE size to 64-bit integer.
* gcc.target/powerpc/pr80510-2.c: Likewise.
Michael Meissner [Wed, 21 Jun 2017 18:02:37 +0000 (18:02 +0000)]
backport: re PR target/80718 (GCC generates slow code for offsettable vec_duplicate)
[gcc]
2017-06-21 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from mainline
2017-05-19 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80718
* config/rs6000/vsx.md (vsx_splat_<mode>, VSX_D iterator): Prefer
VSX registers over GPRs, particularly on ISA 2.07 which does not
have the MTVSRDD instruction.
Back port from mainline
2017-05-18 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80510
* config/rs6000/predicates.md (simple_offsettable_mem_operand):
New predicate.
* config/rs6000/rs6000.md (ALTIVEC_DFORM): New iterator.
(define_peephole2 for Altivec d-form load): Add peepholes to catch
cases where the register allocator uses a move and an offsettable
memory operation to/from a FPR register on ISA 2.06/2.07.
(define_peephole2 for Altivec d-form store): Likewise.
Back port from mainline
2017-05-09 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/68163
* config/rs6000/rs6000.md (f32_lr): Delete mode attributes that
are now unused after splitting mov{sf,sd}_hardfloat.
(f32_lr2): Likewise.
(f32_lm): Likewise.
(f32_lm2): Likewise.
(f32_li): Likewise.
(f32_li2): Likewise.
(f32_lv): Likewise.
(f32_sr): Likewise.
(f32_sr2): Likewise.
(f32_sm): Likewise.
(f32_sm2): Likewise.
(f32_si): Likewise.
(f32_si2): Likewise.
(f32_sv): Likewise.
(f32_dm): Likewise.
(f32_vsx): Likewise.
(f32_av): Likewise.
(mov<mode>_hardfloat): Split into separate movsf and movsd pieces.
For movsf, order stores so the VSX stores occur before the GPR
store which encourages the register allocator to use a traditional
FPR instead of a GPR. For movsd, order the stores so that the GPR
store comes before the VSX stores to allow the power6 to work.
This is due to the power6 not having a 32-bit integer store
instruction from a FPR.
(movsf_hardfloat): Likewise.
(movsd_hardfloat): Likewise.
[gcc/testsuite]
2017-06-21 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from mainline
2017-05-19 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80718
* gcc.target/powerpc/pr80718.c: New test.
Back port from mainline
2017-05-18 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/80510
* gcc.target/powerpc/pr80510-1.c: New test.
* gcc.target/powerpc/pr80510-2.c: Likewise.
Back port from mainline
2017-05-09 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/68163
* gcc.target/powerpc/pr68163.c: New test.
James Greenhalgh [Mon, 19 Jun 2017 17:12:12 +0000 (17:12 +0000)]
Backport: [Patch ARM] Fix PR71778
gcc/
PR target/71778
* config/arm/arm-builtins.c (arm_expand_builtin_args): Return TARGET
if given a non-constant argument for an intrinsic which requires a
constant.
Jonathan Wakely [Fri, 16 Jun 2017 12:41:51 +0000 (13:41 +0100)]
Backport libstdc++ doc improvements from mainline
* doc/xml/manual/appendix_contributing.xml: Link to the list of bad
names, and link to the test docs and note higher DejaGnu version
requirement.
* doc/xml/manual/allocator.xml: Fix ViewCVS URLs.
* doc/xml/manual/mt_allocator.xml: Likewise.
* doc/html/*: Regenerate.
Jakub Jelinek [Thu, 8 Jun 2017 19:04:40 +0000 (21:04 +0200)]
re PR c++/81011 (ICE with #pragma omp task and inaccessible copy-constructor)
PR c++/81011
* cp-gimplify.c (cxx_omp_finish_clause): When changing clause
to OMP_CLAUSE_SHARED, also clear OMP_CLAUSE_SHARED_FIRSTPRIVATE
and OMP_CLAUSE_SHARED_READONLY flags.
Thomas Koenig [Sat, 3 Jun 2017 11:26:38 +0000 (11:26 +0000)]
re PR fortran/65542 (SPREAD intrinsic incorrectly accepted in initialization expressions with -std=f95)
2017-05-03 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/65542
Backport from trunk
* intrinsic.c (gfc_intrinsic_func_interface): Return an error
for -std=f95 for disallowed transformational functions in
initialization expressions.
2017-05-03 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/65542
Backport from trunk
* gfortran.dg/spread_init_expr_2.f90: New test case.
Max Filippov [Wed, 31 May 2017 00:06:11 +0000 (00:06 +0000)]
gcc: xtensa: fix fprintf format specifiers
HOST_WIDE_INT may not be long as assumed in print_operand and
xtensa_emit_call. Use HOST_WIDE_INT_PRINT_DEC/HOST_WIDE_INT_PRINT_HEX
format strings instead of %ld/0x%lx. This fixes incorrect assembly code
generation by the compiler running on armhf host.
2017-05-30 Max Filippov <jcmvbkbc@gmail.com>
gcc/
Backport from mainline
2017-05-29 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/xtensa.c (xtensa_emit_call): Use
HOST_WIDE_INT_PRINT_HEX instead of 0x%lx format string.
(print_operand): Use HOST_WIDE_INT_PRINT_DEC instead of %ld
format string.
Max Filippov [Wed, 31 May 2017 00:05:01 +0000 (00:05 +0000)]
xtensa: Fix PR target/78118
It started failing after the following commit: 32e90dc6a0cda45 ("PR
rtl-optimization/61047").
The change that made xtensa backend go ICE looks completely unrelated,
and indeed, the issue is caused by the side effect of
compute_frame_size() function call hidden in the
INITIAL_ELIMINATION_OFFSET macro. This call updates the value of the
xtensa_current_frame_size static variable, used in "return" instruction
predicate. Prior to the change the value of xtensa_current_frame_size was
set to 0 after the end of epilogue generation, which enabled the "return"
instruction for the CALL0 ABI, but after the change the additional
INITIAL_ELIMINATION_OFFSET calls make xtensa_current_frame_size non-zero
and "return" pattern unavailable.
Get rid of the global xtensa_current_frame_size and
xtensa_callee_save_size variables by moving them into the
machine_function structure. Implement predicate for the "return" pattern
as a function. Don't communicate completion of epilogue generation
through zeroing of xtensa_current_frame_size, add explicit epilogue_done
variable to the machine_function structure. Don't update stack frame
layout after the completion of reload.
2017-05-30 Max Filippov <jcmvbkbc@gmail.com>
gcc/
Backport from mainline
2016-11-01 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/xtensa-protos.h
(xtensa_use_return_instruction_p): New prototype.
* config/xtensa/xtensa.c (xtensa_current_frame_size,
xtensa_callee_save_size): Remove.
(struct machine_function): Add new fields: current_frame_size,
callee_save_size, frame_laid_out and epilogue_done.
(compute_frame_size, xtensa_expand_prologue,
xtensa_expand_epilogue): Replace xtensa_callee_save_size with
cfun->machine->callee_save_size and xtensa_current_frame_size
with cfun->machine->current_frame_size.
(compute_frame_size): Update cfun->machine->frame_laid_out and
don't update frame layout after reload completion.
(xtensa_expand_epilogue): Set cfun->machine->epilogue_done
instead of zeroing xtensa_current_frame_size.
(xtensa_use_return_instruction_p): New function.
* config/xtensa/xtensa.h (xtensa_current_frame_size): Remove
declaration.
(INITIAL_ELIMINATION_OFFSET): Use return value of
compute_frame_size instead of xtensa_current_frame_size value.
* config/xtensa/xtensa.md ("return" pattern): Use new predicate
function xtensa_use_return_instruction_p instead of inline code.
Max Filippov [Wed, 31 May 2017 00:04:08 +0000 (00:04 +0000)]
xtensa: don't use unwind-dw2-fde-dip with elf targets
Define LIB2ADDEH_XTENSA_UNWIND_DW2_FDE to unwind-dw2-fde.c in
xtensa/t-elf and to unwind-dw2-fde-dip.c in xtensa/t-linux and use
LIB2ADDEH_XTENSA_UNWIND_DW2_FDE in LIB2ADDEH definition.
This fixes build for elf target with windowed xtensa core that currently
breaks with the following error message:
unwind-dw2-fde-dip.c:36:40: fatal error: elf.h: No such file or directory
2017-05-30 Max Filippov <jcmvbkbc@gmail.com>
libgcc/
Backport from mainline
2016-10-18 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/t-elf (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
definition.
* config/xtensa/t-linux (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
definition.
* config/xtensa/t-windowed (LIB2ADDEH): Use
LIB2ADDEH_XTENSA_UNWIND_DW2_FDE defined by either xtensa/t-elf
or xtensa/t-linux.
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