* exp_imgv.adb (Is_User_Defined_Enumeration_Type): New subprogram.
(Expand_User_Defined_Enumeration_Image): New subprogram.
(Expand_Image_Attribute): Enable speed-optimized expansion of
user-defined enumeration types when we are compiling with optimizations
enabled.
2017-09-25 Piotr Trojanek <trojanek@adacore.com>
* sem_util.adb (Has_Null_Abstract_State): Remove, as an exactly same
routine is already provided by Einfo.
* einfo.adb (Has_Null_Abstract_State): Replace with the body from
Sem_Util, which had better comments and avoided double calls to
Abstract_State.
[Patch, Darwin] Fix PR80556 by linking the system unwinder ahead of libgcc_eh.
PR target/80556
* config/i386/darwin.h (REAL_LIB_SPEC): New; put libSystem ahead
of libgcc_eh for m64.
* config/i386/darwin64.h: Likewise.
/* WORKAROUND pr80556:
For x86_64 Darwin10 and later, the unwinder is in libunwind (redirected
from libSystem). This doesn't use the keymgr (see keymgr.c) and therefore
the calls that libgcc makes to obtain the KEYMGR_GCC3_DW2_OBJ_LIST are not
updated to include new images, and might not even be valid for a single
image.
Therefore, for 64b exes at least, we must use the libunwind implementation,
even when static-libgcc is specified. We put libSystem first so that
unwinder symbols are satisfied from there.
* exp_ch3.adb: Rename Comp_Type_Simple to be Comp_Simple_Init.
2017-09-25 Doug Rupp <rupp@adacore.com>
* libgnarl/s-taprop__linux.adb (Base_Monotonic_Clock): New variable.
(Compute_Base_Monotonic_Clock): New function.
(Timed_Sleep): Adjust to use Base_Monotonic_Clock.
(Timed_Delay): Likewise.
(Monotonic_Clock): Likewise.
* s-oscons-tmplt.c (CLOCK_MONOTONIC): Use on Linux.
Janne Blomqvist [Mon, 25 Sep 2017 06:44:18 +0000 (09:44 +0300)]
Remove unnecessary fold_convert in gfc_(un)likely
This patch removes an unnecessary fold_convert to boolean_type_node at
the end of gfc_likely and gfc_unlikely. It makes no difference to the
generated code, but makes tree dumps a little bit cleaner.
H.J. Lu [Sun, 24 Sep 2017 21:37:09 +0000 (14:37 -0700)]
x32: Encode %esp as %rsp to avoid 0x67 prefix
Since the upper 32 bits of stack register are always zero for x32, we
can encode %esp as %rsp to avoid 0x67 prefix in address if there is no
index or base register.
gcc/
PR target/82267
* config/i386/i386.c (ix86_print_operand_address_as): Encode
%esp as %rsp to avoid 0x67 prefix if there is no index or base
register.
gcc/testsuite/
PR target/82267
* gcc.target/i386/pr82267.c: New test.
Janus Weil [Sat, 23 Sep 2017 13:15:20 +0000 (15:15 +0200)]
re PR fortran/82143 (add a -fdefault-real-16 flag)
2017-09-23 Janus Weil <janus@gcc.gnu.org>
PR fortran/82143
* lang.opt: Add the options -fdefault-real-10 and -fdefault-real-16.
Rename flag_default_real to flag_default_real_8.
* invoke.texi: Add documentation.
* module.c (use_iso_fortran_env_module): flag_default_real is renamed.
* trans-types.c (gfc_init_kinds): Implement the flags
-fdefault-real-10 and -fdefault-real-16. Make -fdefault-double-8 work
without -fdefault-real-8.
2017-09-23 Janus Weil <janus@gcc.gnu.org>
PR fortran/82143
* gfortran.dg/promotion_3.f90: New test case.
* gfortran.dg/promotion_4.f90: New test case.
Jakub Jelinek [Fri, 22 Sep 2017 18:56:23 +0000 (20:56 +0200)]
re PR middle-end/35691 (Missed (a == 0) && (b == 0) into (a|(typeof(a)(b)) == 0 when the types don't match)
PR middle-end/35691
* match.pd: Simplify x == -1 & y == -1 into (x & y) == -1
and x != -1 | y != -1 into (x & y) != -1.
* gcc.dg/pr35691-1.c: Use -fdump-tree-forwprop1-details
instead of -fdump-tree-forwprop-details in dg-options.
* gcc.dg/pr35691-2.c: Likewise.
* gcc.dg/pr35691-3.c: New test.
* gcc.dg/pr35691-4.c: New test.
Jakub Jelinek [Fri, 22 Sep 2017 18:55:21 +0000 (20:55 +0200)]
re PR sanitizer/81929 (exponential slowdown in undefined behavior sanitizer for streaming)
PR sanitizer/81929
* tree.c (struct replace_placeholders_t): Add pset field.
(replace_placeholders_r): Call cp_walk_tree with d->pset as
last argument instead of NULL. Formatting fix.
(replace_placeholders): Add pset variable, add its address
into data. Pass &pset instead of NULL to cp_walk_tree.
Steve Ellcey [Fri, 22 Sep 2017 18:04:18 +0000 (18:04 +0000)]
config.gcc: Add new case statement to set default_gnu_indirect_function.
2017-09-22 Steve Ellcey <sellcey@cavium.com>
* config.gcc: Add new case statement to set
default_gnu_indirect_function. Remove it from x86_64-*-linux*,
i[34567]86-*, powerpc*-*-linux*spe*, powerpc*-*-linux*, s390-*-linux*,
s390x-*-linux* case statements. Added aarch64 to the list of
supported architectures.
PR82289: Computing peeling costs for irrelevant drs
This PR shows that we weren't filtering out irrelevant stmts in
vect_get_peeling_costs_all_drs (unlike related loops in which
we iterate over all datarefs).
2017-09-22 Richard Sandiford <richard.sandiford@linaro.org>
The vectoriser aligned vectors to TYPE_ALIGN unconditionally, although
there was also a hard-coded assumption that this was equal to the type
size. This was inconvenient for SVE for two reasons:
- When compiling for a specific power-of-2 SVE vector length, we might
want to align to a full vector. However, the TYPE_ALIGN is governed
by the ABI alignment, which is 128 bits regardless of size.
- For vector-length-agnostic code it doesn't usually make sense to align,
since the runtime vector length might not be a power of two. Even for
power of two sizes, there's no guarantee that aligning to the previous
16 bytes will be an improveent.
This patch therefore adds a target hook to control the preferred
vectoriser (as opposed to ABI) alignment.
2017-09-22 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* target.def (preferred_vector_alignment): New hook.
* doc/tm.texi.in (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): New
hook.
* doc/tm.texi: Regenerate.
* targhooks.h (default_preferred_vector_alignment): Declare.
* targhooks.c (default_preferred_vector_alignment): New function.
* tree-vectorizer.h (dataref_aux): Add a target_alignment field.
Expand commentary.
(DR_TARGET_ALIGNMENT): New macro.
(aligned_access_p): Update commentary.
(vect_known_alignment_in_bytes): New function.
* tree-vect-data-refs.c (vect_calculate_required_alignment): New
function.
(vect_compute_data_ref_alignment): Set DR_TARGET_ALIGNMENT.
Calculate the misalignment based on the target alignment rather than
the vector size.
(vect_update_misalignment_for_peel): Use DR_TARGET_ALIGMENT
rather than TYPE_ALIGN / BITS_PER_UNIT to update the misalignment.
(vect_enhance_data_refs_alignment): Mask the byte misalignment with
the target alignment, rather than masking the element misalignment
with the number of elements in a vector. Also use the target
alignment when calculating the maximum number of peels.
(vect_find_same_alignment_drs): Use vect_calculate_required_alignment
instead of TYPE_ALIGN_UNIT.
(vect_duplicate_ssa_name_ptr_info): Remove stmt_info parameter.
Measure DR_MISALIGNMENT relative to DR_TARGET_ALIGNMENT.
(vect_create_addr_base_for_vector_ref): Update call accordingly.
(vect_create_data_ref_ptr): Likewise.
(vect_setup_realignment): Realign by ANDing with
-DR_TARGET_MISALIGNMENT.
* tree-vect-loop-manip.c (vect_gen_prolog_loop_niters): Calculate
the number of peels based on DR_TARGET_ALIGNMENT.
* tree-vect-stmts.c (get_group_load_store_type): Compare the gap
with the guaranteed alignment boundary when deciding whether
overrun is OK.
(vectorizable_mask_load_store): Interpret DR_MISALIGNMENT
relative to DR_TARGET_ALIGNMENT instead of TYPE_ALIGN_UNIT.
(ensure_base_align): Remove stmt_info parameter. Get the
target base alignment from DR_TARGET_ALIGNMENT.
(vectorizable_store): Update call accordingly. Interpret
DR_MISALIGNMENT relative to DR_TARGET_ALIGNMENT instead of
TYPE_ALIGN_UNIT.
(vectorizable_load): Likewise.
gcc/testsuite/
* gcc.dg/vect/vect-outer-3a.c: Adjust dump scan for new wording
of alignment message.
* gcc.dg/vect/vect-outer-3a-big-array.c: Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253101
This patch adds a helper function for getting the number of bytes
accessed by an unvectorised data reference, which helps when general
modes have a variable size.
2017-09-22 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* tree-vectorizer.h (vect_get_scalar_dr_size): New function.
* tree-vect-data-refs.c (vect_update_misalignment_for_peel): Use it.
(vect_enhance_data_refs_alignment): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253099
Richard Earnshaw [Fri, 22 Sep 2017 16:24:46 +0000 (17:24 +0100)]
[arm] Improve error checking in parsecpu.awk
This patch adds a bit more error checking to parsecpu.awk to ensure
that statements are not missing arguments or have excess arguments
beyond those permitted. It also slightly improves the handling of
errors so that we terminate properly if parsing fails and be as
helpful as we can while in the parsing phase.
2017-09-22 Richard Earnshaw <richard.earnshaw@arm.com>
* config/arm/parsecpu.awk (fatal): Note that we've encountered an
error. Only quit immediately if parsing is complete.
(BEGIN): Initialize fatal_err and parse_done.
(begin fpu, end fpu): Check number of arguments.
(begin arch, end arch): Likewise.
(begin cpu, end cpu): Likewise.
(cname, tune for, tune flags, architecture, fpu, option): Likewise.
(optalias): Likewise.
Richard Earnshaw [Fri, 22 Sep 2017 16:17:11 +0000 (17:17 +0100)]
[arm] auto-generate arm-isa.h from CPU descriptions
This patch autogenerates arm-isa.h from new entries in arm-cpus.in.
This has the primary advantage that it makes the description file more
self-contained, but it also solves the 'array dimensioning' problem
that Tamar recently encountered. It adds two new constructs to
arm-cpus.in: features and fgroups. Fgroups are simply a way of naming
a group of feature bits so that they can be referenced together. We
follow the convention that feature bits are all lower case, while
fgroups are (predominantly) upper case. This is helpful as in some
contexts they share the same namespace. Most of the minor changes in
this patch are related to adopting this new naming convention.
2017-09-22 Richard Earnshaw <richard.earnshaw@arm.com>
* config.gcc (arm*-*-*): Don't add arm-isa.h to tm_p_file.
* config/arm/arm-isa.h: Delete. Move definitions to ...
* arm-cpus.in: ... here. Use new feature and fgroup values.
* config/arm/arm.c (arm_option_override): Use lower case for feature
bit names.
* config/arm/arm.h (TARGET_HARD_FLOAT): Likewise.
(TARGET_VFP3, TARGET_VFP5, TARGET_FMA): Likewise.
* config/arm/parsecpu.awk (END): Add new command 'isa'.
(isa_pfx): Delete.
(print_isa_bits_for): New function.
(gen_isa): New function.
(gen_comm_data): Use print_isa_bits_for.
(define feature): New keyword.
(define fgroup): New keyword.
* config/arm/t-arm (TM_H): Remove.
(GTM_H): Add arm-isa.h.
(arm-isa.h): Add rule to generate file.
* common/config/arm/arm-common.c: (arm_canon_arch_option): Use lower
case for feature bit names.
David Malcolm [Fri, 22 Sep 2017 14:49:52 +0000 (14:49 +0000)]
C++: underline parameters in mismatching function calls
gcc/cp/ChangeLog:
* call.c (get_fndecl_argument_location): New function.
(convert_like_real): Use it when complaining about argument type
mismatches.
* cp-tree.h (struct cp_parameter_declarator): Add "loc" field.
* parser.c (make_parameter_declarator): Add "loc" param and use
it to initialize the new field.
(cp_parser_translation_unit): Add UNKNOWN_LOCATION for "loc" of
the "no_parameters" parameter.
(cp_parser_parameter_declaration_list): Set the location of the
result of grokdeclarator to be the parameter's loc, assuming no
errors.
(cp_parser_parameter_declaration): Generate a location for the
parameter and pass to make_parameter_declarator.
gcc/testsuite/ChangeLog:
* g++.dg/diagnostic/param-type-mismatch.C: Update expected results
to reflect highlighting of parameters; add test coverage for
callback parameters.
Ian Lance Taylor [Fri, 22 Sep 2017 13:38:10 +0000 (13:38 +0000)]
re PR sanitizer/77631 (no symbols in backtrace shown by ASan when debug info is split)
PR sanitizer/77631
* configure.ac: Check for lstat and readlink.
* elf.c (lstat, readlink): Provide dummy versions if real versions
are not available.
* configure, config.h.in: Rebuild.
Richard Biener [Fri, 22 Sep 2017 13:16:21 +0000 (13:16 +0000)]
graphite-isl-ast-to-gimple.c (graphite_verify): Inline into single caller.
2017-09-22 Richard Biener <rguenther@suse.de>
* graphite-isl-ast-to-gimple.c (graphite_verify): Inline into
single caller.
(graphite_regenerate_ast_isl): Do not reset SCEV. Move debug
print of no dependency loops ...
* graphite.c (graphite_transform_loops): ... here.
(canonicalize_loop_closed_ssa_form): Work from inner to outer
loops.
(same_close_phi_node, remove_duplicate_close_phi,
make_close_phi_nodes_unique, defined_in_loop_p): Fold into ...
(canonicalize_loop_closed_ssa): ... here and simplify.
* graphite-optimize-isl.c: Include tree-vectorizer.h.
(optimize_isl): Use dump_printf_loc to tell when we stopped
optimizing because of an ISL timeout.
Richard Biener [Fri, 22 Sep 2017 07:31:32 +0000 (07:31 +0000)]
graphite-isl-ast-to-gimple.c (translate_pending_phi_nodes): Verify both BBs contain loop PHI nodes before dispatching to copy_loop_phi_args.
2017-09-21 Richard Biener <rguenther@suse.de>
* graphite-isl-ast-to-gimple.c (translate_pending_phi_nodes):
Verify both BBs contain loop PHI nodes before dispatching to
copy_loop_phi_args.
(graphite_regenerate_ast_isl): Do not recompute dominators,
do not verify three times. Restructure for clarity.
* graphite-scop-detection.c (same_close_phi_node,
remove_duplicate_close_phi, make_close_phi_nodes_unique,
defined_in_loop_p, canonicalize_loop_closed_ssa,
canonicalize_loop_closed_ssa_form): Simplify, remove excess
checking and SSA rewrite, move to ...
* graphite.c: ... here. Include ssa.h and tree-ssa-loop-manip.h.
(graphite_initialize): Do not pass in ctx, do not reset the
SCEV cache, compute only dominators.
(graphite_transform_loops): Allocate ISL ctx after
graphite_initialize. Call canonicalize_loop_closed_ssa_form.
Maintain post-dominators only around build_scops.
* sese.c (if_region_set_false_region): Make static. Free
and recompute dominators.
(move_sese_in_condition): Assert we don't get called with
post-dominators computed.
* sese.h (if_region_set_false_region): Remove.
Paul Thomas [Thu, 21 Sep 2017 18:40:21 +0000 (18:40 +0000)]
re PR fortran/52832 ([F03] ASSOCIATE construct with proc-pointer selector is rejected)
2017-09-21 Paul Thomas <pault@gcc.gnu.org>
PR fortran/52832
* match.c (gfc_match_associate): Before failing the association
try again, allowing a proc pointer selector.
PR fortran/80120
PR fortran/81903
PR fortran/82121
* primary.c (gfc_match_varspec): Introduce 'tgt_expr', which
points to the associate selector, if any. Go through selector
references, after resolution for variables, to catch any full
or section array references. If a class associate name does
not have the same declared type as the selector, resolve the
selector and copy the declared type to the associate name.
Before throwing a no implicit type error, resolve all allowed
selector expressions, and copy the resulting typespec.
PR fortran/67543
* resolve.c (resolve_assoc_var): Selector must cannot be the
NULL expression and it must have a type.
PR fortran/78152
* resolve.c (resolve_symbol): Allow associate names to be
coarrays.
2017-09-21 Paul Thomas <pault@gcc.gnu.org>
PR fortran/78512
* gfortran.dg/associate_26.f90 : New test.
PR fortran/80120
* gfortran.dg/associate_27.f90 : New test.
PR fortran/81903
* gfortran.dg/associate_28.f90 : New test.
PR fortran/82121
* gfortran.dg/associate_29.f90 : New test.
PR fortran/67543
* gfortran.dg/associate_30.f90 : New test.
PR fortran/52832
* gfortran.dg/associate_31.f90 : New test.
[demangler PATCH]: Revert and update generic lambda demangling
https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01482.html
PR demangler/82195
* cp-demangle.c (d_name): Revert addition of 'toplevel' parm.
(has_return_type): Recurse for DEMANGLE_COMPONENT_LOCAL_NAME.
(d_encoding): Revert d_name change. Use is_fnqual_component_type
to strip modifiers that do not belong.
(d_special_name, d_class_enum_type): Revert d_name call change.
(d_expresion_1): Commonize DEMANGLE_COMPONENT_UNARY building.
(d_local_name): Revert parsing of a function type.
(d_print_comp_inner): An inner LOCAL_NAME might contain a
TEMPLATE.
* testsuite/demangle-expected: Add & adjust tests
haifa-sched exports an insn_cost function, but it is only used in a
few places and specialised to scheduling. This patch renames it to
insn_sched_cost.
Jakub Jelinek [Thu, 21 Sep 2017 12:26:34 +0000 (14:26 +0200)]
re PR sanitizer/81715 (asan-stack=1 redzone allocation is too inflexible)
PR sanitizer/81715
* tree-inline.c (expand_call_inline): Emit clobber stmts for
VAR_DECLs to which addressable non-volatile parameters are mapped
and for id->retvar after the return value assignment. Clear
id->retval and id->retbnd after inlining.
* g++.dg/tree-ssa/pr8781.C (noop): Change argument type from
const predicate to const predicate & to avoid UB.
* g++.dg/opt/pr81715.C: New test.
Richard Biener [Thu, 21 Sep 2017 12:12:33 +0000 (12:12 +0000)]
re PR tree-optimization/82276 (-O2: ICE: SSA corruption during RTL pass: expand; at tree-ssa-coalesce.c:1010)
2017-09-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/82276
PR tree-optimization/82244
* tree-vrp.c (build_assert_expr_for): Set
SSA_NAME_OCCURS_IN_ABNORMAL_PHI if the variable we assert on
has it set.
(remove_range_assertions): Revert earlier change.
As described in PR71951, if libgcc is built with -fomit-frame-pointer,
unwinding crashes, for example while doing a backtrace. The underlying
reason is the Dwarf unwinder does not setup the frame pointer register
in the initialization code. When later unwinding a function that uses
the frame pointer, it tries to read FP using _Unwind_GetGR, and this
crashes if has never restored FP. To unwind correctly the first frame
must save and restore FP (it is unwound in a special way so that it
uses SP instead of FP). This is done by adding -fno-omit-frame-pointer.
Richard Biener [Thu, 21 Sep 2017 12:02:58 +0000 (12:02 +0000)]
graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl): Restore valid IL after code generation errors.
2017-09-21 Richard Biener <rguenther@suse.de>
* graphite-isl-ast-to-gimple.c (graphite_regenerate_ast_isl):
Restore valid IL after code generation errors.
* graphite.c (graphite_transform_loops): Diagnose code
generation issues as MSG_MISSED_OPTIMIZATION and continue
with processing SCOPs.
with single calls to simplify_gen_binary. This allows
them to handle polynomial integers as well as constants.
2017-09-21 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* calls.c (compute_argument_addresses): Use simplify_gen_binary
rather than choosing between plus_constant and gen_rtx_<CODE>.
* expr.c (emit_push_insn): Likewise.
(expand_expr_real_2): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253059
The BIT_AND_EXPR handling in extract_range_from_binary_expr_1
was using value_range_constant_singleton without first checking
whether the range was a constant. The earlier handling was correctly
guarded:
/* If either input range contains only non-negative values
we can truncate the result range maximum to the respective
maximum of the input range. */
if (int_cst_range0 && tree_int_cst_sgn (vr0.min) >= 0)
wmax = wi::min (wmax, vr0.max, TYPE_SIGN (expr_type));
if (int_cst_range1 && tree_int_cst_sgn (vr1.min) >= 0)
wmax = wi::min (wmax, vr1.max, TYPE_SIGN (expr_type));
so this patch uses the same guards again.
Existing tests showed the need for this once polynomial constants
are added.
2017-09-21 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* tree-vrp.c (extract_range_from_binary_expr_1): Check
int_cst_rangeN before calling value_range_constant_singleton (&vrN).
Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r253054
Richard Biener [Thu, 21 Sep 2017 10:08:21 +0000 (10:08 +0000)]
re PR tree-optimization/71351 (ICE: Segmentation fault (graphite))
2017-09-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/71351
* graphite-isl-ast-to-gimple.c (translate_isl_ast_to_gimple::
graphite_create_new_loop_guard): Remove, fold remaining parts
into caller ...
(translate_isl_ast_node_for): ... here and simplify.
* gfortran.dg/graphite/pr71351.f90: New testcase.
* gfortran.dg/graphite/interchange-3.f90: Adjust.
Jonathan Wakely [Thu, 21 Sep 2017 09:59:55 +0000 (10:59 +0100)]
Fix tests for std::clamp
* testsuite/25_algorithms/clamp/1.cc: Fix order of arguments and
expected results when using predicate defining reverse order.
* testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
Jakub Jelinek [Thu, 21 Sep 2017 07:27:54 +0000 (09:27 +0200)]
re PR target/82260 ([x86] Unnecessary use of 8-bit registers with -Os. slightly slower and larger code)
PR target/82260
* config/i386/i386.md (*movqi_internal): Replace (=q,q) alternative
with (=Q,Q), (=R,R) and (=r,r) alternatives, only enable the
latter two for 64-bit, renumber alternatives, for -Os imov (=q,n)
alternative always use QI mode, for -Os imov (=R,R) alternative
always use SI mode, for imov (=Q,Q) or (=r,r) alternatives
ignore -Os.
* gcc.target/i386/pr82260-1.c: New test.
* gcc.target/i386/pr82260-2.c: New test.
Andreas Krebbel [Thu, 21 Sep 2017 04:30:16 +0000 (04:30 +0000)]
s390.c (MIN_UNROLL_PROBES): Define.
* config/s390/s390.c (MIN_UNROLL_PROBES): Define.
(allocate_stack_space): New function, partially extracted from
s390_emit_prologue.
(s390_emit_prologue): Track offset to most recent stack probe.
Code to allocate space moved into allocate_stack_space.
Dump actions when no stack is allocated.
(s390_prologue_plus_offset): New function.
(s390_emit_stack_probe): Likewise.
* gcc.dg/stack-check-5.c: Add argument for s390.
* lib/target-supports.exp:
(check_effective_target_supports_stack_clash_protection): Enable for
s390/s390x targets.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r253049
enable handling of -gno- command-line options as negated prefixes
This patch that adds -g to the set of negatable prefixes along with -f,
-m and -W. Besides the mapping from -gno- to negated -g in option_map
and adding g to the [fmW] matches for negatable options, I had to
introduce gno- as an remapping prefix, for the option searching
machinery to backtrack to and recognize as a remapping prefix, instead
of backtracking to -g and stopping at it as if no-* was its Joined
argument. Adding such remapping prefixes to preempt further
backtracking can be accomplished by introducing the prefix as an
Undocumented option with a Joined argument and without Driver, Target,
Common, or any language-specific option. Whenever we match such a fake
options prefix, we abandon further backtracking (it matches, after all),
but find_opt returns the same code it would if it hadn't found any
match, so that we resort to option mapping.
I've arranged for such remapping prefixes to not be considered when
looking for and suggesting a correct spelling for misspelled options.
While testing that, I found a few -W-started options that were not
marked as RejectNegative but should (-Wno-a, is not something we'd like
to suggest ;-) I've also marked as such -g-started options that
it makes no sense to negate, and removed the explicit -gno- ones,
allowing their opposites to be negated.
for gcc/ChangeLog
* common.opt (Wa, Wl, Wp, g, gz=): Add
RejectNegative.
(gno-column-info): Remove.
(gcolumn-info): Drop RejectNegative.
(gno-): New prefix.
(gno-record-gcc-switches): Remove.
(grecord-gcc-switches): Drop RejectNegative.
(gno-split-dwarf): Remove.
(gsplit-dwarf): Drop RejectNegative.
(gno-strict-dwarf): Remove.
(gstrict-dwarf): Drop RejectNegative.
* config/darwin.opt (gfull, gused): Add RejectNegative.
* dwarf2out.c (gen_producer_string): Drop
gno-record-gcc-switches handler.
* optc-gen.awk: Add g to prefixes with negative forms.
* opts-common.c (remapping_prefix_p): New.
(find_opt): Check it.
(generate_canonical_option): Test g prefix.
(option_map): Add -gno- mapping.
(add_misspelling_candidates): Check remapping_prefix_p.
Ian Lance Taylor [Wed, 20 Sep 2017 23:31:00 +0000 (23:31 +0000)]
libgo: fix build when using -enable-static=no
With -enable-static=no we don't build non-pic objects, but libgotool.a
is built from non-pic objects. Build the packages that go into
libgotool.a in static mode in all cases.
Also ensure that internal test packages are built, since nothing
explicitly depended on them.
Jonathan Wakely [Wed, 20 Sep 2017 22:03:37 +0000 (23:03 +0100)]
PR libstdc++/79162 Fix std::string regression due to LWG 2946 (old ABI)
PR libstdc++/79162
* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
(basic_string::_If_sv): Remove from the overload set when the
argument is derived from basic_string.
Jeff Law [Wed, 20 Sep 2017 21:59:50 +0000 (15:59 -0600)]
explow.c (compute_stack_clash_protection_loop_data): Use CONST_INT_P instead of explicit test.
* explow.c (compute_stack_clash_protection_loop_data): Use
CONST_INT_P instead of explicit test. Verify object is a
CONST_INT_P before looking at INTVAL.
(anti_adjust_stack_and_probe_stack_clash): Use CONST_INT_P
instead of explicit test.
* gcc.target/i386/stack-check-11.c: Update test and regexp
so that it works for both i?86 and x86_64.
rs6000: Don't touch below the stack pointer (PR77687)
With the 32-bit SVR4 ABI we don't have a red zone, so we have to restore
the callee-saved registers before we restore the stack pointer.
The previous fix for this PR failed in two ways, for huge frames: first,
we use a negative offset from r11 in that case, so the (mem:BLK 11) access
does no good; second, sched does not handle accesses to mem:BLK correctly
in this case (does not make dependencies).
This patch fixes it by doing a store to (mem:BLK (scratch)) instead.
This means no unrelated (not to stack) loads/stores can be moved over the
stack restore either, but so be it.
PR target/77687
* config/rs6000/rs6000.md (stack_restore_tie): Store to a scratch
address instead of to r1 and r11.
gcc/testsuite/
PR target/77687
* gcc.target/powerpc/pr77687.c: New testcase.
Jakub Jelinek [Wed, 20 Sep 2017 19:36:47 +0000 (21:36 +0200)]
P0409R2 - allow lambda capture [=, this]
P0409R2 - allow lambda capture [=, this]
* parser.c (cp_parser_lambda_introducer): For cxx2a don't pedwarn on
redundant [=, this].
* g++.dg/cpp1z/lambda-this1.C: Don't expect error for c++2a on [=, this]
capture. Add further tests.
* g++.dg/cpp0x/lambda/lambda-capture-redundancy.C: Don't expect error
for c++2a on [=, this] capture.
Jonathan Wakely [Wed, 20 Sep 2017 17:59:50 +0000 (18:59 +0100)]
PR libstdc++/79162 Fix std::string regression due to LWG 2946
PR libstdc++/79162
* include/bits/basic_string.h (basic_string::_If_sv): Remove from the
overload set when the argument is derived from basic_string.
* testsuite/21_strings/basic_string/cons/char/moveable2_c++17.cc: New
test.
* testsuite/21_strings/basic_string/cons/wchar_t/moveable2_c++17.cc:
New test.
PR libstdc++/82262
* include/std/optional (__optional_hash_call_base): Add template
parameter for remove_const_t<_Tp> and use it consistently.
* testsuite/20_util/optional/hash.cc: Test optional<const T>.
Richard Biener [Wed, 20 Sep 2017 12:08:16 +0000 (12:08 +0000)]
re PR tree-optimization/80213 (ICE in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:704)
2017-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/80213
* graphite-scop-detection.c (trivially_empty_bb_p): Labels
are allowed in empty BBs as well.
(canonicalize_loop_closed_ssa): Also look for other complex
edges.
(scop_detection::get_sese): Include the loop-closed PHI block
in loop SESEs.
(scop_detection::merge_sese): Remove code adding extra blocks.
(scop_detection::region_has_one_loop): Adjust for get_sese changes.
(build_scops): Assert the final returned scop is invalid.
Richard Biener [Wed, 20 Sep 2017 11:08:35 +0000 (11:08 +0000)]
re PR tree-optimization/82264 (ICE in vn_phi_lookup at gcc/tree-ssa-sccvn.c:3125)
2017-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/82264
* tree-ssa-sccvn.c (vn_phi_eq): Use safe_dyn_cast to check
for GIMPLE_CONDs.
(vn_phi_lookup): Likewise.
(vn_phi_insert): Likewise.
Jakub Jelinek [Wed, 20 Sep 2017 09:04:22 +0000 (11:04 +0200)]
dwarf2out.c (tree_add_const_value_attribute): For INTEGER_CST that fits into uhwi or shwi...
* dwarf2out.c (tree_add_const_value_attribute): For INTEGER_CST
that fits into uhwi or shwi, add DW_AT_const_value regardless
of early_dwarf without going through RTL, using add_AT_unsigned
or add_AT_int.
* g++.dg/debug/dwarf2/template-params-13.C: New test.
* g++.dg/debug/dwarf2/template-params-5.C: Adjust regexps so that
it doesn't match newlines.
* g++.dg/debug/dwarf2/template-params-3.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-3.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp98.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-2.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-1.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-5.C: Likewise.
* g++.dg/debug/dwarf2/template-params-1.C: Likewise.
* g++.dg/debug/dwarf2/template-params-2.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp14.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp11.C: Likewise.
Richard Biener [Wed, 20 Sep 2017 07:33:58 +0000 (07:33 +0000)]
re PR tree-optimization/81373 (Graphite ICE in ssa_default_def at gcc/tree-dfa.c:305)
2017-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/81373
* graphite-scop-detection.c (build_cross_bb_scalars_def):
Force SESE live-out defs to be handled even if they are
scev_analyzable_p.
* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): New.
(ix86_expand_prologue): Dump stack clash info as needed.
Call ix86_adjust_stack_and_probe_stack_clash as needed.
* gcc.dg/stack-check-4.c: New test.
* gcc.dg/stack-check-5.c: New test.
* gcc.dg/stack-check-6.c: New test.
* gcc.dg/stack-check-6a.c: New test.
* gcc.dg/stack-check-7.c: New test.
* gcc.dg/stack-check-8.c: New test.
* gcc.dg/stack-check-9.c: New test.
* gcc.dg/stack-check-10.c: New test.
* lib/target-supports.exp
(check_effective_target_supports_stack_clash_protection): Enable for
x86 and x86_64 targets.
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