2017-01-17 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79004
* gcc.target/powerpc/pr79004.c: Add -mfloat128 to the test
options. Fix up the syntax for using \m and \M.
From-SVN: r244561
Currently, on PowerPC, code compiled with -fstack-protector will load
the canary from -0x7010(13) (for -m64) or from -0x7008(2) (for -m32)
if GCC was compiled against GNU libc 2.4 or newer or some other libc
that supports -fstack-protector, and from the global variable
__stack_chk_guard otherwise.
This does not work well for Linux and other OS kernels and similar.
For such non-standard applications, this patch creates a few new
command-line options. The relevant new use cases are:
-mstack-protector-guard=global
Use the __stack_chk_guard variable, no matter how this GCC was
configured.
-mstack-protector-guard=tls
Use the canary from TLS. This will error out if this GCC was built
with a C library that does not support it.
-mstack-protector-guard=tls -mstack-protector-register=<reg>
-mstack-protector-offset=<offset>
Load the canary from offset <off> from base register <reg>.
PR target/78875
* config/rs6000/rs6000-opts.h (stack_protector_guard): New enum.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Handle
the new options.
* config/rs6000/rs6000.md (stack_protect_set): Handle the new more
flexible settings.
(stack_protect_test): Ditto.
* config/rs6000/rs6000.opt (mstack-protector-guard=,
mstack-protector-guard-reg=, mstack-protector-guard-offset=): New
options.
* doc/invoke.texi (Option Summary) [RS/6000 and PowerPC Options]:
Add -mstack-protector-guard=, -mstack-protector-guard-reg=, and
-mstack-protector-guard-offset=.
(RS/6000 and PowerPC Options): Ditto.
gcc/testsuite/
* gcc.target/powerpc/ssp-1.c: New testcase.
* gcc.target/powerpc/ssp-2.c: New testcase.
From-SVN: r244556
This patch simplifies the handling of EH return. We force the use of the
frame pointer so the return location is always at FP + 8. This means we
can emit a simple volatile access in EH_RETURN_HANDLER_RTX without needing md
patterns, splitters and frame offset calculations. The new implementation also
fixes various bugs in aarch64_final_eh_return_addr, which does not work with
-fomit-frame-pointer, alloca or outgoing arguments.
gcc/
* config/aarch64/aarch64.md (eh_return): Remove pattern and splitter.
* config/aarch64/aarch64.h (AARCH64_EH_STACKADJ_REGNUM): Remove.
(EH_RETURN_HANDLER_RTX): New define.
* config/aarch64/aarch64.c (aarch64_frame_pointer_required):
Force frame pointer in EH return functions.
(aarch64_expand_epilogue): Add barrier for eh_return.
(aarch64_final_eh_return_addr): Remove.
(aarch64_eh_return_handler_rtx): New function.
* config/aarch64/aarch64-protos.h (aarch64_final_eh_return_addr):
Remove.
(aarch64_eh_return_handler_rtx): New prototype.
testsuite/
* gcc.target/aarch64/eh_return.c: New test.
From-SVN: r244547
[gcc]
2017-01-17 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/altivec.h (vec_rlmi): New #define.
(vec_vrlnm): Likewise.
(vec_rlnm): Likewise.
* config/rs6000/altivec.md (UNSPEC_VRLMI): New UNSPEC enum value.
(UNSPEC_VRLNM): Likewise.
(VIlong): New mode iterator.
(altivec_vrl<VI_char>mi): New define_insn.
(altivec_vrl<VI_char>nm): Likewise.
* config/rs6000/rs6000-builtin.def (VRLWNM): New monomorphic
function entry.
(VRLDNM): Likewise.
(RLNM): New polymorphic function entry.
(VRLWMI): New monomorphic function entry.
(VRLDMI): Likewise.
(RLMI): New polymorphic function entry.
* config/rs6000/r6000-c.c (altivec_overloaded_builtin_table): Add
new entries for P9V_BUILTIN_VEC_RLMI and P9V_BUILTIN_VEC_RLNM.
* doc/extend.texi: Add description of vec_rlmi, vec_rlnm, and
vec_vrlnm.
[gcc/testsuite]
2017-01-17 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* vec-rlmi-rlnm.c: New file.
From-SVN: r244546
PR c++/61636
* cp-tree.h (maybe_generic_this_capture): Declare.
* lambda.c (resolvable_dummy_lambda): New, broken out of ...
(maybe_resolve_dummy): ... here. Call it.
(maybe_generic_this_capture): New.
* parser.c (cp_parser_postfix_expression): Speculatively capture
this in generic lambda in unresolved member function call.
* pt.c (tsubst_copy_and_build): Force hard error from failed
member function lookup in generic lambda.
PR c++/61636
* g++.dg/cpp1y/pr61636-1.C: New.
* g++.dg/cpp1y/pr61636-2.C: New.
* g++.dg/cpp1y/pr61636-3.C: New.
From-SVN: r244544
gcc/c-family/ChangeLog:
PR c++/71497
* c-indentation.c (warn_for_misleading_indentation): Use the past
subjunctive in the note.
gcc/testsuite/ChangeLog:
PR c++/71497
* c-c++-common/Wmisleading-indentation-3.c: Update wording of
expected messages.
* c-c++-common/Wmisleading-indentation.c: Likewise.
From-SVN: r244536
PR middle-end/77445
* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges):
correctly set frequency of oudgoing edge.
(duplicate_thread_path): Fix profile updating.
* gcc.dg/tree-ssa/pr77445-2.c: New testcase.
* gcc.dg/tree-ssa/pr77445.c: New testcase.
From-SVN: r244528
* g++.dg/tree-ssa/ssa-dse-2.C (size_t): Typedef to __SIZE_TYPE__
rather than long unsigned int.
* g++.dg/tree-ssa/ssa-dom.C: Likewise.
From-SVN: r244527
2017-01-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/71433
* tree-vrp.c (register_new_assert_for): Merge same asserts
on all incoming edges.
(process_assert_insertions_for): Handle insertions at the
beginning of BBs.
* gcc.dg/Warray-bounds-20.c: New testcase.
From-SVN: r244520
The testcases as written made assumptions about size_t and long
being invalid for use with "%u".
We only need some invalid type, so this patch converts them to
attempt a "const char *" with "%u", which should be invalid for
every target.
gcc/testsuite/ChangeLog:
PR c/78304
* gcc.dg/format/pr78304.c: Convert argument from integral type
to a pointer.
* gcc.dg/format/pr78304-2.c: Likewise.
From-SVN: r244502
gcc/ChangeLog:
2017-01-16 Carl Love <cel@us.ibm.com>
* config/rs6000/rs6000-c (altivec_overloaded_builtins): Add support
for built-in functions
vector signed char vec_nabs (vector signed char)
vector signed short vec_nabs (vector signed short)
vector signed int vec_nabs (vector signed int)
vector signed long long vec_nabs (vector signed long long)
vector float vec_nabs (vector float)
vector double vec_nabs (vector double)
* config/rs6000/rs6000-builtin.def: Add definitions for NABS functions
and NABS overload.
* config/rs6000/altivec.md: New define_expand nabs<mode>2 types
* config/rs6000/altivec.h: New define for vec_nabs built-in function.
* doc/extend.texi: Update the documentation file for the new built-in
functions.
gcc/testsuite/ChangeLog:
2017-01-16 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/builtins-3.c: New vec_nabs testcase.
* gcc.target/powerpc/builtins-3-p8.c: New vec_nabs testcase.
From-SVN: r244501
gcc/testsuite/ChangeLog:
2017-01-16 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/builtins-3-p9.c (test_ne_long()):
Change arguments and return type to bool long long.
From-SVN: r244499
[gcc]
2017-01-16 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rtx_is_swappable_p): Change
UNSPEC_VSX__XXSPLTD to require special splat handling.
[gcc/testsuite]
2017-01-16 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* gcc.target/powerpc/swaps-p8-27.c: New.
From-SVN: r244495
PR rtl-optimization/78626
PR rtl-optimization/78727
* cprop.c (one_cprop_pass): Collect unconditional traps in the middle
of a block, and split such blocks after everything else is finished.
PR rtl-optimization/78626
PR rtl-optimization/78727
* gcc.dg/torture/pr78626.c: New test.
* gcc.dg/torture/pr78727.c: New test.
From-SVN: r244467
gcc/ChangeLog:
PR c/78304
* substring-locations.c (format_warning_va): Strengthen case 1 so
that both endpoints of the substring must be within the format
range for just the substring to be printed.
gcc/testsuite/ChangeLog:
PR c/78304
* gcc.dg/format/diagnostic-ranges.c (test_macro): Undef INT_FMT.
(test_macro_2): New test.
(test_macro_3): New test.
(test_macro_4): New test.
(test_non_contiguous_strings): Convert line number to line offset.
* gcc.dg/format/pr78304-2.c: New test case.
* gcc.dg/format/pr78304.c: New test case.
From-SVN: r244453
* config/i386/i386.opt (msgx): Use ix86_isa_flags2 variable.
* config/i386/i386.c (ix86_target_string): Add missing options
to isa_opts and reorder options by implied ISAs. Rename isa_opts2 to
isa2_opts, ix86_flag_opts to flag2_opts, ix86_target_other to
flags_other and ix86_target_other to flags2_other. Display unknown
isa2 options.
(ix86_valid_target_attribute_inner_p): Add missing options and
reorder options by implied ISAs, as in ix86_target_string.
testsuite/ChangeLog:
* gcc.target/i386/funcspec-56.inc: Add missing options and
reorder options by implied ISAs, as in ix86_target_string.
From-SVN: r244452
In order to handle large character lengths on (L)LP64 targets, switch
the GFortran character length from an int to a size_t.
This is an ABI change, as procedures with character arguments take
hidden arguments with the character length.
I also changed the _size member in vtables from int to size_t, as
there were some cases where character lengths and sizes were
apparently mixed up and caused regressions otherwise. Although I
haven't tested, this might enable very large derived types as well.
Also, as there are some places in the frontend were negative character
lengths are used as special flag values, in the frontend the character
length is handled as a signed variable of the same size as a size_t,
although in the runtime library it really is size_t.
I haven't changed the character length variables for the co-array
intrinsics, as this is something that may need to be synchronized with
OpenCoarrays.
This is v4 of the patch. v3 was applied but had to reverted due to
breaking bootstrap. The fix is in resolve.c:resolve_charlen, where
it's necessary to check that an expression is constant before using
mpz_sgn.
Overview of v3 of the patch: All the issues pointed out by FX's review
of v2 have been fixed. In particular, there are now new functions
gfc_mpz_get_hwi and gfc_mpz_set_hwi, similar to the GMP functions
mpz_get_si and mpz_set_si, except that they get/set a HOST_WIDE_INT
instead of a long value. Similarly, gfc_get_int_expr now takes a
HOST_WIDE_INT instead of a long, gfc_extract_long is replaced by
gfc_extract_hwi. Also, the preliminary work to handle
gfc_charlen_type_node being unsigned has been removed.
Regtested on x86_64-pc-linux-gnu and i686-pc-linux-gnu.
frontend:
2017-01-13 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/78534
PR fortran/66310
* class.c (gfc_find_derived_vtab): Use gfc_size_kind instead of
hardcoded kind.
(find_intrinsic_vtab): Likewise.
* expr.c (gfc_get_character_expr): Length parameter of type
gfc_charlen_t.
(gfc_get_int_expr): Value argument of type HOST_WIDE_INT.
(gfc_extract_hwi): New function.
(simplify_const_ref): Make string_len of type gfc_charlen_t.
(gfc_simplify_expr): Use HOST_WIDE_INT for substring refs.
* gfortran.h (gfc_mpz_get_hwi): New prototype.
(gfc_mpz_set_hwi): Likewise.
(gfc_charlen_t): New typedef.
(gfc_expr): Use gfc_charlen_t for character lengths.
(gfc_size_kind): New extern variable.
(gfc_extract_hwi): New prototype.
(gfc_get_character_expr): Use gfc_charlen_t for character length.
(gfc_get_int_expr): Use HOST_WIDE_INT type for value argument.
* iresolve.c (gfc_resolve_repeat): Pass string length directly without
temporary, use gfc_charlen_int_kind.
* match.c (select_intrinsic_set_tmp): Use HOST_WIDE_INT for charlen.
* misc.c (gfc_mpz_get_hwi): New function.
(gfc_mpz_set_hwi): New function.
* module.c (atom_int): Change type from int to HOST_WIDE_INT.
(parse_integer): Don't complain about large integers.
(write_atom): Use HOST_WIDE_INT for integers.
(mio_integer): Handle integer type mismatch.
(mio_hwi): New function.
(mio_intrinsic_op): Use HOST_WIDE_INT.
(mio_array_ref): Likewise.
(mio_expr): Likewise.
* resolve.c (resolve_select_type): Use HOST_WIDE_INT for charlen,
use snprintf.
(resolve_substring_charlen): Use gfc_charlen_int_kind.
(resolve_charlen): Use mpz_sgn to determine sign.
* simplify.c (gfc_simplify_repeat): Use HOST_WIDE_INT/gfc_charlen_t
instead of long.
* target-memory.c (size_character): Length argument of type
gfc_charlen_t.
(gfc_encode_character): Likewise.
(gfc_interpret_character): Use gfc_charlen_t.
* target-memory.h (gfc_encode_character): Modify prototype.
* trans-array.c (get_array_ctor_var_strlen): Use
gfc_conv_mpz_to_tree_type.
* trans-const.c (gfc_conv_mpz_to_tree_type): New function.
* trans-const.h (gfc_conv_mpz_to_tree_type): New prototype.
* trans-expr.c (gfc_class_len_or_zero_get): Build const of type
gfc_charlen_type_node.
(gfc_conv_intrinsic_to_class): Use gfc_charlen_int_kind instead of
4, fold_convert to correct type.
(gfc_conv_class_to_class): Build const of type size_type_node for
size.
(gfc_copy_class_to_class): Likewise.
(gfc_conv_string_length): Use same type in expression.
(gfc_conv_substring): Likewise, use HOST_WIDE_INT for charlen.
(gfc_conv_string_tmp): Make sure len is of the right type.
(gfc_conv_concat_op): Use same type in expression.
(gfc_conv_procedure_call): Likewise.
(alloc_scalar_allocatable_for_subcomponent_assignment):
fold_convert to right type.
(gfc_trans_subcomponent_assign): Likewise.
(trans_class_vptr_len_assignment): Build const of correct type.
(gfc_trans_pointer_assignment): Likewise.
(alloc_scalar_allocatable_for_assignment): fold_convert to right
type in expr.
(trans_class_assignment): Build const of correct type.
* trans-intrinsic.c (gfc_conv_associated): Likewise.
(gfc_conv_intrinsic_repeat): Do calculation in sizetype.
* trans-io.c (gfc_build_io_library_fndecls): Use
gfc_charlen_type_node for character lengths.
* trans-stmt.c (gfc_trans_label_assign): Build const of
gfc_charlen_type_node.
(gfc_trans_character_select): Likewise.
(gfc_trans_allocate): Likewise, don't typecast strlen result.
(gfc_trans_deallocate): Don't typecast strlen result.
* trans-types.c (gfc_size_kind): New variable.
(gfc_init_types): Determine gfc_charlen_int_kind and gfc_size_kind
from size_type_node.
testsuite:
2017-01-13 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/78534
PR fortran/66310
* gfortran.dg/repeat_4.f90: Use integers of kind C_SIZE_T.
* gfortran.dg/repeat_7.f90: New test for PR 66310.
* gfortran.dg/scan_2.f90: Handle potential cast in assignment.
* gfortran.dg/string_1.f90: Limit to ilp32 targets.
* gfortran.dg/string_1_lp64.f90: New test.
* gfortran.dg/string_3.f90: Limit to ilp32 targets.
* gfortran.dg/string_3_lp64.f90: New test.
libgfortran:
2017-01-13 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/78534
* intrinsics/args.c (getarg_i4): Use gfc_charlen_type.
(get_command_argument_i4): Likewise.
(get_command_i4): Likewise.
* intrinsics/chmod.c (chmod_internal): Likewise.
* intrinsics/env.c (get_environment_variable_i4): Likewise.
* intrinsics/extends_type_of.c (struct vtype): Use size_t for size
member.
* intrinsics/gerror.c (gerror): Use gfc_charlen_type.
* intrinsics/getlog.c (getlog): Likewise.
* intrinsics/hostnm.c (hostnm_0): Likewise.
* intrinsics/string_intrinsics_inc.c (string_len_trim): Rework to
work if gfc_charlen_type is unsigned.
(string_scan): Likewise.
* io/transfer.c (transfer_character): Modify prototype.
(transfer_character_write): Likewise.
(transfer_character_wide): Likewise.
(transfer_character_wide_write): Likewise.
(transfer_array): Typecast to avoid signed-unsigned comparison.
* io/unit.c (is_trim_ok): Use gfc_charlen_type.
* io/write.c (namelist_write): Likewise.
* libgfortran.h (gfc_charlen_type): Change typedef to size_t.
From-SVN: r244448
* tree-ssa-dse.c (decrement_count): New function.
(increment_start_addr, maybe_trim_memstar_call): Likewise.
(dse_dom_walker::optimize_stmt): Call maybe_trim_memstar_call directly
when we know the partially dead statement is a mem* function.
* gcc.dg/tree-ssa/ssa-dse-25.c: New test.
From-SVN: r244444
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
* doc/invoke.texi: Document new dse-max-object-size param.
* params.def (PARM_DSE_MAX_OBJECT_SIZE): New PARAM.
* tree-ssa-dse.c: Include params.h.
(dse_store_status): New enum.
(initialize_ao_ref_for_dse): New, partially extracted from
dse_optimize_stmt.
(valid_ao_ref_for_dse, normalize_ref): New.
(setup_live_bytes_from_ref, compute_trims): Likewise.
(clear_bytes_written_by, maybe_trim_complex_store): Likewise.
(maybe_trim_partially_dead_store): Likewise.
(maybe_trim_complex_store): Likewise.
(dse_classify_store): Renamed from dse_possibly_dead_store_p.
Track what bytes live from the original store. Return tri-state
for dead, partially dead or live.
(dse_dom_walker): Add constructor, destructor and new private members.
(delete_dead_call, delete_dead_assignment): New extracted from
dse_optimize_stmt.
(dse_optimize_stmt): Make a member of dse_dom_walker.
Use initialize_ao_ref_for_dse.
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
* gcc.dg/tree-ssa/complex-4.c: Remove xfail.
* gcc.dg/tree-ssa/complex-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-9.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-18.c: New test.
* gcc.dg/tree-ssa/ssa-dse-19.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-20.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-21.c: Likewise.
From-SVN: r244442
2017-01-13 Martin Liska <mliska@suse.cz>
PR ipa/79043
* function.c (set_cfun): Add new argument force.
* function.h (set_cfun): Likewise.
* ipa-inline-transform.c (inline_call): Use the function when
strict alising from is dropped for function we inline to.
2017-01-13 Martin Liska <mliska@suse.cz>
PR ipa/79043
* gcc.c-torture/execute/pr79043.c: New test.
From-SVN: r244435
gcc/testsuite/ChangeLog:
2017-01-13 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/70696
* gfortran.dg/coarray/event_3.f08: New test.
gcc/fortran/ChangeLog:
2017-01-13 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/70696
* trans-expr.c (gfc_get_tree_for_caf_expr): Ensure the backend_decl
is valid before accessing it.
libgfortran/ChangeLog:
2017-01-13 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/70696
* caf/single.c (_gfortran_caf_register): Allocate enough memory for
the event counter.
From-SVN: r244407
2017-01-13 Richard Biener <rguenther@suse.de>
c/
* gimple-parser.c (c_parser_gimple_postfix_expression): Parse
_Literal ( type-name ) number.
* tree-pretty-print.c (dump_generic_node): Dump INTEGER_CSTs
as _Literal ( type ) number in case usual suffixes do not
preserve all information.
* gcc.dg/gimplefe-22.c: New testcase.
From-SVN: r244393
2017-01-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/77283
* gimple-ssa-split-paths.c: Include gimple-ssa.h, tree-phinodes.h
and ssa-iterators.h.
(is_feasible_trace): Implement a cost model based on joiner
PHI node uses.
* gcc.dg/tree-ssa/split-path-7.c: Adjust.
* gcc.dg/tree-ssa/split-path-8.c: New testcase.
* gcc.dg/tree-ssa/split-path-9.c: Likewise.
From-SVN: r244392
[gcc]
2017-01-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79004
* config/rs6000/rs6000.md (FP_ISA3): Do not optimize converting
char or short to __float128/_Float128 directly.
[gcc/testsuite]
2017-01-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79004
* gcc.target/powerpc/pr79004.c: New test.
From-SVN: r244386
* gimple-ssa-sprintf.c (try_substitute_return_value): Remove
info.nowrite calls with no lhs that can't throw. Return bool
whether gsi_remove has been called or not.
(pass_sprintf_length::handle_gimple_call): Return bool whether
try_substitute_return_value called gsi_remove. Formatting fix.
(pass_sprintf_length::execute): Don't use gsi_remove if
handle_gimple_call returned true.
* gcc.dg/tree-ssa/builtin-snprintf-1.c: New test.
From-SVN: r244384
Nathan Sidwell
Joe Seymour
Michael Meissner
Segher Boessenkool
Wilco Dijkstra
Bill Schmidt
Martin Sebor
David Malcolm
Vladimir Makarov
Jakub Jelinek
Martin Liska
Jan Hubicka
Richard Biener
Alan Modra
Jeff Law
Carl Love
Paolo Carlini
Eric Botcazou
Bernd Schmidt
Janne Blomqvist
Uros Bizjak
Marek Polacek
Andre Vehreschild
Sandra Loosemore