2019-05-01 Nina Dinka Ranns <dinka.ranns@gmail.com>
Make allocator propagation more consistent for
operator+(basic_string) (P1165R1)
* include/bits/basic_string.h
(operator+(basic_string&&, basic_string&&): Changed resulting
allocator to always be the one from the first parameter.
* include/bits/basic_string.tcc
(operator+(const _CharT*, const basic_string&)): Changed
resulting allocator to be SOCCC on the second parameter's allocator.
(operator+(_CharT, const basic_string&)): Likewise.
* testsuite/21_strings/basic_string/allocator/char/operator_plus.cc:
New.
* testsuite/21_strings/basic_string/allocator/wchar_t/operator_plus.cc:
New.
From-SVN: r270953
2019-05-07 Richard Biener <rguenther@suse.de>
* tree-vect-stmts.c (vect_is_simple_cond): When vectype is
not specified still compute a comp_vectype for invariant
compares.
From-SVN: r270945
2019-05-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/90316
* tree-ssa-pre.c (translate_vuse_through_block): When
same_valid is NULL do not bother to search for a virtual
PHI continuation.
(phi_translate_1): When operands changed we cannot keep
the same value-number so do not bother to ask whether
that's possible from translate_vuse_through_block.
From-SVN: r270944
2019-05-07 Martin Liska <mliska@suse.cz>
* bitmap.c (bitmap_register): Come up with
alloc_descriptor_max_uid and assign it for
a new bitmap.
(register_overhead): Use get_descriptor as
a descriptor.
(release_overhead): New.
(bitmap_elem_to_freelist): Call it.
(bitmap_elt_clear_from): Likewise.
(bitmap_obstack_free): Likewise.
(bitmap_move): Sensitively release memory.
* bitmap.h (struct GTY): Add alloc_descriptor and padding.
(bitmap_initialize): Initialize alloc_descriptor to zero.
* tree-ssa-pre.c (do_hoist_insertion): Use bitmap_move.
From-SVN: r270942
2019-05-07 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (vect_build_slp_tree_2): Bump size whenever
we build a SLP node. Remove max_size and limiting.
(vect_analyze_slp_instance): Record and dump size of the SLP graph.
From-SVN: r270941
2019-05-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/90316
* tree-ssa-alias.h (get_continuation_for_phi): Take walking
limit by reference.
(walk_non_aliased_vuses): Take walking limit argument.
* tree-ssa-alias.c (maybe_skip_until): Take limit and abort
walking if it is reached instead of just counting.
(get_continuation_for_phi): Likewise.
(walk_non_aliased_vuses): Likewise, instead of leaving counter
limiting to the callback.
* tree-ssa-sccvn.c (vn_reference_lookup_2): Adjust.
(vn_reference_lookup_3): Likewise.
(vn_reference_lookup_pieces): Likewise.
(vn_reference_lookup): Likewise.
* tree-ssa-pre.c (translate_vuse_through_block): Limit walking.
* tree-ssa-scopedtables.c (vuse_eq): Adjust.
(avail_exprs_stack::lookup_avail_expr): Likewise.
From-SVN: r270940
* m4/druntime/os.m4 (DRUNTIME_OS_LINK_SPEC): Only use -z
relax=transtls if linker supports it.
* configure.ac (enable_libphobos, LIBPHOBOS_SUPPORTED): Move down.
(x86_64-*-solaris2.* | i?86-*-solaris2.*): Only
mark supported with either gld or ld -z relax=transtls.
* configure: Regenerate.
From-SVN: r270939
* tree-ssa-alias.c (aliasing_component_refs_p): Continue looking
for comparaible types in the second direction even if first one
hits incomparable type.
From-SVN: r270938
2019-05-07 Richard Biener <rguenther@suse.de>
PR lto/90369
* lto-wrapper.c (debug_objcopy): Use the original filename
including archive offset for the filename used for -save-temps.
From-SVN: r270937
GCC revision 267634 implemented two_value_replacement function.
However, a typo occurred during the parameter check, which caused
us to miss some optimizations.
The intent of the code might be to check that the input parameters
are const int and their difference is one. However, when I read
the code, I found that it is wrong to detect whether an input data
plus one is equal to itself. This could be a typo.
2019-05-07 Li Jia He <helijia@linux.ibm.com>
* tree-ssa-phiopt.c (two_value_replacement): Fix a typo in parameter
detection.
* gcc.dg/tree-ssa/pr37508.c: Add the no-ssa-phiopt option to skip phi
optimization.
* gcc.dg/tree-ssa/pr88676-2.c: New testcase.
From-SVN: r270934
This renumbers the registers.
It moves the VRs to 64..95, right after the GPRs and the FPRS. This
means that the VSRs (which are aliases to the FPRs and the VRs, in
that order) are consecutive now.
It removes MQ, which has been just a stub for ages (it is a leftover
from RIOS, old POWER).
It moves the CR fields to 100..107, which is a bit easier to read
than the 68..75 is was before.
The rest fills the holes. It should be easy to move anything else
after this series, so the exact order isn't very important anymore,
we aren't stuck with it if we dislike it.
Many things still want the GPRs to be at 0..31, and some things want
the FPRs at 32..63. I don't think we'll ever want to change that,
so I left it be.
Small things... It removes DWARF_FRAME_REGISTERS, it used to save
1000 or so words of memory, but it has been just a handful for a
while, and now it is one. Some whitespace fixes. Testing showed one
or two places where register allocation was different (not worse, not
better, just different).
* config/rs6000/rs6000.md (FIRST_ALTIVEC_REGNO, LAST_ALTIVEC_REGNO)
(LR_REGNO, CTR_REGNO, CA_REGNO, ARG_POINTER_REGNUM, CR0_REGNO)
(CR1_REGNO, CR2_REGNO, CR3_REGNO, CR4_REGNO, CR5_REGNO, CR6_REGNO)
(CR7_REGNO, MAX_CR_REGNO, VRSAVE_REGNO, VSCR_REGNO)
(FRAME_POINTER_REGNUM): Change numbering.
* config/rs6000/rs6000.c (rs6000_reg_names): Adjust.
(alt_reg_names): Adjust.
(rs6000_conditional_register_usage): Don't mark hard register 64 as
fixed.
* config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Adjust.
(DWARF_FRAME_REGISTERS): Delete.
(DWARF2_FRAME_REG_OUT): Fix whitespace.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
Adjust.
(REG_ALLOC_ORDER): Adjust.
(FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM): Adjust.
(REG_CLASS_CONTENTS): Adjust.
(RETURN_ADDR_RTX): Change comment.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Use ARG_POINTER_REGNUM
instead of 67.
(REGISTER_NAMES): Adjust.
(ADDITIONAL_REGISTER_NAMES): Adjust.
* config/rs6000/darwin.h (REGISTER_NAMES): Adjust.
From-SVN: r270929
2019-05-06 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/90290
* match.c (gfc_match_stopcode): Check F2008 condition on stop code.
2019-05-06 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/90290
* gfortran.dg/pr90290.f90: New test.
From-SVN: r270928
We do not need to expose the TM registers in debug info. It isn't
actually useful there, because none of the things that can modify
these registers (other than explicit moves) are marked.
We also do not need the registers for GCC itself internally. This
patch deletes them.
* config/rs6000/rs6000.md (TFHAR_REGNO, TFIAR_REGNO, TEXASR_REGNO):
Delete.
* config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Adjust.
(DWARF_FRAME_REGISTERS): Adjust.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
Adjust.
(REG_ALLOC_ORDER): Adjust.
(enum reg_class): Delete SPR_REGS.
(REG_CLASS_NAMES): Delete SPR_REGS.
(REG_CLASS_CONTENTS): Delete SPR_REGS. Adjust for deleted TM regs.
(REGISTER_NAMES): Adjust.
(ADDITIONAL_REGISTER_NAMES): Adjust.
* config/rs6000/darwin.h (REGISTER_NAMES): Adjust.
* config/rs6000/htm.md (htm_mfspr_<mode>, htm_mtspr_<mode>): Adjust.
* config/rs6000/predicates.md (htm_spr_reg_operand): Delete.
* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Adjust.
(htm_spr_regno): Delete.
(htm_expand_builtin): Adjust: the HTM builtins now have one fewer
argument.
(rs6000_dbx_register_number): Adjust.
From-SVN: r270927
The frame pointer and the argument pointer aren't real registers. MQ
was a register on old POWER. All three are still used as arguments to
rs6000_dbx_register_number during initialisation. If we handle them
explicitly we can do a gcc_unreachable to catch other unexpected
registers.
* config/rs6000/rs6000.c (rs6000_dbx_register_number): Handle
FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, and 64 (which was MQ).
From-SVN: r270925
PR tree-optimization/88709
PR tree-optimization/90271
* params.def (PARAM_STORE_MERGING_MAX_SIZE): New parameter.
* gimple-ssa-store-merging.c (encode_tree_to_bitpos): Handle
non-clobber CONSTRUCTORs with no elts. Remove useless tmp_int
variable.
(imm_store_chain_info::coalesce_immediate_stores): Punt if the size
of the store merging group is larger than
PARAM_STORE_MERGING_MAX_SIZE parameter.
(split_group): Add bzero_first argument. If set, always emit first
the first store which must be = {} of the whole area and then for the
rest of the stores consider all zero bytes as paddings.
(imm_store_chain_info::output_merged_store): Check if first store
is = {} of the whole area and if yes, determine which setting of
bzero_first for split_group gives smaller number of stores. Adjust
split_group callers.
(lhs_valid_for_store_merging_p): Allow decls.
(rhs_valid_for_store_merging_p): Allow non-clobber CONTRUCTORs with
no elts.
(pass_store_merging::process_store): Likewise.
* gcc.dg/store_merging_26.c: New test.
* gcc.dg/store_merging_27.c: New test.
* gcc.dg/store_merging_28.c: New test.
* gcc.dg/store_merging_29.c: New test.
From-SVN: r270924
* pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
element in the vector.
* g++.dg/cpp1y/lambda-generic-90265.C: New test.
From-SVN: r270917
2019-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/88828
* tree-ssa-forwprop.c (get_bit_field_ref_def): Split out from...
(simplify_vector_constructor): ...here. Handle constants in
the constructor.
* gcc.target/i386/pr88828-0.c: New testcase.
From-SVN: r270908
2019-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/90328
* tree-data-ref.h (dr_may_alias_p): Pass in the actual loop nest.
* tree-data-ref.c (dr_may_alias_p): Check whether the clique
is valid in the loop nest before using it.
(initialize_data_dependence_relation): Adjust.
* graphite-scop-detection.c (build_alias_set): Pass the SCOP enclosing
loop as loop-nest to dr_may_alias_p.
* gcc.dg/torture/pr90328.c: New testcase.
From-SVN: r270906
2019-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/90316
* tree-ssa-alias.c (maybe_skip_until): Pass in target BB,
compute target on demand.
(get_continuation_for_phi): Remove code walking stmts to
get to a target virtual operand which could end up being
quadratic.
From-SVN: r270902
2019-05-06 Richard Biener <rguenther@suse.de>
PR testsuite/90331
* gcc.dg/pr87314-1.c: Align the substring to open up
string merging for targets aligning strings to 8 bytes.
From-SVN: r270900
2019-05-06 Martin Liska <mliska@suse.cz>
PR sanitizer/90312
* config/i386/i386-options.c (ix86_option_override_internal): Error only
when -mabi is selected to a non-default version.
2019-05-06 Martin Liska <mliska@suse.cz>
PR sanitizer/90312
* gcc.dg/asan/pr87930.c: Run the test only on *linux or *gnu
systems.
* gcc.dg/tsan/pr88017.c: Likewise.
From-SVN: r270899
2019-05-06 Hrishikesh Kulkarni <hrishikeshparag@gmail.com>
Martin Liska <mliska@suse.cz>
* Makefile.in: Add lto-dump.texi.
* cgraph.h: Add new functions get_visibility_string and
get_symtab_type_string.
* doc/gcc.texi: Include lto-dump section.
* doc/lto-dump.texi: New file.
* dumpfile.c (dump_switch_p_1): Use parse_dump_option.
(parse_dump_option): Factor out this function.
* dumpfile.h (enum dump_flag): Add new value TDF_ERROR.
(parse_dump_option): Export the function.
* symtab.c (symtab_node::get_visibility_string): New function.
(symtab_node::get_symtab_type_string): Likewise.
2019-05-06 Hrishikesh Kulkarni <hrishikeshparag@gmail.com>
Martin Liska <mliska@suse.cz>
* Make-lang.in: Add lto_dump-related definition.
* config-lang.in: Likewise.
* lang.opt: Add new language LTODump and options related
to LTO dump tool.
* lto-common.c (lto_read_decls): Support type statistics dump.
(lto_file_read): Likewise for object files.
* lto-dump.c: New file.
* lto-lang.c (lto_option_lang_mask): Move from ..
* lto.c (lto_option_lang_mask): .. here.
* lto.h (lto_option_lang_mask): New declaration.
Co-Authored-By: Martin Liska <mliska@suse.cz>
From-SVN: r270897
2019-05-06 Martin Liska <mliska@suse.cz>
Hrishikesh Kulkarni <hrishikeshparag@gmail.com>
* Make-lang.in: Add lto-common.o.
* config-lang.in: Likewise for gtfiles.
* lto-common.c: New file.
* lto-common.h: New file.
* lto-lang.c: Include lto-common.h.
* lto.c: Move most of the functionality
into lto-common.c file.
Co-Authored-By: Hrishikesh Kulkarni <hrishikeshparag@gmail.com>
From-SVN: r270896
2019-05-06 Martin Liska <mliska@suse.cz>
* config/i386/i386-builtins.c: New file.
* config/i386/i386-builtins.h: New file.
* config/i386/i386-expand.c: New file.
* config/i386/i386-expand.h: New file.
* config/i386/i386-features.c: New file.
* config/i386/i386-features.h: New file.
* config/i386/i386-options.c: New file.
* config/i386/i386-options.h: New file.
* config.gcc: Add new files into extra_objs and
target_gtfiles.
* config/i386/i386.c: Split content of the file
into newly introduced files.
* config/i386/i386.h: Declare common variables
and macros.
* config/i386/t-i386: Define dependencies for new files.
From-SVN: r270895
GCC revision 267634 implemented two_value_replacement function.
However, a typo occurred during the parameter check, which caused
us to miss some optimizations.
The intent of the code might be to check that the input parameters
are const int and their difference is one. However, when I read
the code, I found that it is wrong to detect whether an input data
plus one is equal to itself. This could be a typo.
2019-05-06 Li Jia He <helijia@linux.ibm.com>
* tree-ssa-phiopt.c (two_value_replacement): Fix a typo in parameter
detection.
* gcc.dg/tree-ssa/pr37508.c: Add the no-ssa-phiopt option to skip phi
optimization.
* gcc.dg/tree-ssa/pr88676-2.c: New testcase.
From-SVN: r270894
2019-05-06 François Dumont <fdumont@gcc.gnu.org>
* python/libstdcxx/v6/printers.py (add_one_template_type_printer):
Add type printer for container types in std::__debug namespace.
* testsuite/lib/gdb-test.exp (whatis-regexp-test): New.
(gdb-tests): Use distinct parameters for the type of test and use of
regex.
(gdb-test): Check for regex test even if 'whatis' test.
* testsuite/libstdc++-prettyprinters/80276.cc: Adapt for _GLIBCXX_DEBUG
mode.
* testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
* testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
* testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
* testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
* testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.
From-SVN: r270893
Nathan Sidwell
Jim Wilson
Alejandro Martinez
Uros Bizjak
Jonathan Wakely
Nina Dinka Ranns
Rainer Orth
Richard Biener
Martin Liska
Richard Biener
Jan Hubicka
Li Jia He
GCC Administrator
Segher Boessenkool
Steven G. Kargl
Jakub Jelinek
Kelvin Nilsen
Marek Polacek
Li Jia He
Thomas Schwinge
Hrishikesh Kulkarni
François Dumont
Thomas Koenig