149604 Commits

Author SHA1 Message Date
Jakub Jelinek
7786b6aca2 dwarf2out.c (dwarf_op): Renamed to ...
* dwarf2out.c (dwarf_op): Renamed to ...
	(dwarf_OP): ... this.
	(convert_descriptor_to_mode, scompare_loc_descriptor,
	minmax_loc_descriptor, typed_binop, mem_loc_descriptor,
	implicit_ptr_descriptor, optimize_one_addr_into_implicit_ptr): Adjust
	callers.
	(dwarf_AT, dwarf_TAG): New functions.
	(check_die): Disallow DW_AT_call_all_calls next to
	DW_AT_GNU_all_call_sites.
	(gen_call_site_die): Use dwarf_TAG and dwarf_AT with DWARF 5 tag
	and attributes instead of the corresponding GNU tag and attributes.
	(gen_subprogram_die): Likewise.  Emit call site information even
	for -gdwarf-5 -gstrict-dwarf.  Replace DW_AT_GNU_defaulted with
	DW_AT_defaulted in comment.
	(resolve_addr): Handle DW_AT_call_origin attribute on
	DW_TAG_call_site DIE like DW_AT_abstract_origin on
	DW_TAG_GNU_call_site DIE.

From-SVN: r241713
2016-10-31 18:14:29 +01:00
Jakub Jelinek
23157abc1c dwarf2out.c (dwarf_op): New function.
* dwarf2out.c (dwarf_op): New function.
	(size_of_loc_descr): Handle DW_OP_{implicit_pointer,entry_value},
	DW_OP_{const,regval,deref}_type and DW_OP_{convert,reinterpret}.
	(output_loc_operands, output_loc_operands_raw): Likewise.
	(resolve_args_picking_1, prune_unused_types_walk_loc_descr,
	mark_base_types, hash_loc_operands, compare_loc_operands): Likewise.
	(resolve_addr_in_expr): Likewise.  Only punt for !dwarf_strict
	if dwarf_version < 5.
	(convert_descriptor_to_mode): Use dwarf_op (DW_OP_xxx) instead of
	DW_OP_GNU_xxx.
	(scompare_loc_descriptor, ucompare_loc_descriptor,
	minmax_loc_descriptor, typed_binop, mem_loc_descriptor,
	implicit_ptr_descriptor, optimize_one_addr_into_implicit_ptr,
	optimize_location_into_implicit_ptr): Likewise.  Only punt for
	!dwarf_strict if dwarf_version < 5.
	(string_cst_pool_decl): Adjust comment.
	(non_dwarf_expression): Handle DW_OP_implicit_pointer.

From-SVN: r241712
2016-10-31 18:12:56 +01:00
Jakub Jelinek
9782e1ec0a re PR c++/77886 (-Wimplicit-fallthrough: breaks duff's device (in function templates))
PR c++/77886
	* pt.c (tsubst_expr) <case CASE_LABEL_EXPR> Copy over
	FALLTHROUGH_LABEL_P flag to the new LABEL_DECL.
	(tsubst_expr) <case LABEL_EXPR>: Likewise.

	* g++.dg/warn/Wimplicit-fallthrough-2.C: New test.

From-SVN: r241711
2016-10-31 18:10:30 +01:00
Jakub Jelinek
c5fed5c6f2 re PR c++/78089 (__builtin_shuffle parsing bug)
PR c++/78089
	* parser.c (cp_parser_postfix_expression): Replace return statement in
	the first switch with setting postfix_expression to the return
	expression and break;.

	* c-c++-common/builtin-shuffle-1.c: New test.
	* g++.dg/cpp0x/addressof3.C: New test.

From-SVN: r241710
2016-10-31 18:08:36 +01:00
Jakub Jelinek
f04c1e0a56 dwarf2out.h (enum dw_val_class): Add dw_val_class_const_implicit...
* dwarf2out.h (enum dw_val_class): Add dw_val_class_const_implicit,
	dw_val_class_unsigned_const_implicit and dw_val_class_file_implicit.
	(struct dw_val_node): Add val_file_implicit field.
	* dwarf2out.c (dw_val_equal_p, print_dw_val, attr_checksum,
	attr_checksum_ordered, same_dw_val_p, size_of_die, value_format,
	output_die): Handle dw_val_class_const_implicit,
	dw_val_class_unsigned_const_implicit and dw_val_class_file_implicit.
	(abbrev_die_table): Change into va_gc vec.
	(abbrev_die_table_allocated, abbrev_die_table_in_use,
	ABBREV_DIE_TABLE_INCREMENT): Remove.
	(AT_int, AT_unsigned, AT_file): Allow dw_val_class_*_implicit.
	(abbrev_opt_start, abbrev_usage_count, sorted_abbrev_dies): New
	variables.
	(build_abbrev_table): Adjust for abbrev_die_table being a va_gc vec.
	If abbrev_opt_start, fill in abbrev_usage_count and abbrev_dies
	vectors.
	(die_abbrev_cmp, optimize_implicit_const, optimize_abbrev_table): New
	functions.
	(output_die_abbrevs): For DW_FORM_implicit_const emit sleb128 with
	the implicit value.
	(output_abbrev_section): Adjust for abbrev_die_table being a va_gc
	vec.
	(output_comp_unit): Initialize abbrev_opt_start if emitting the main
	unit.  Call optimize_abbrev_table.
	(dwarf2out_init, dwarf2out_finish, dwarf2out_c_finalize): Adjust for
	abbrev_die_table being a va_gc vec.

From-SVN: r241709
2016-10-31 17:59:21 +01:00
Ville Voutilainen
aee69156da Add tests for a const member and a reference member for launder.
* g++.dg/cpp1z/launder3.C: New.
* g++.dg/cpp1z/launder4.C: Likewise.
* g++.dg/cpp1z/launder5.C: Likewise.
* g++.dg/cpp1z/launder5.cc: Likewise.
* g++.dg/cpp1z/launder5.h: Likewise.
* g++.dg/cpp1z/launder6.C: Likewise.
* g++.dg/cpp1z/launder6.cc: Likewise.
* g++.dg/cpp1z/launder6.h: Likewise.

From-SVN: r241708
2016-10-31 18:52:23 +02:00
Jakub Jelinek
dcb466eca3 re PR c++/77948 (Option processing of -std=c++11 -std=gnu++11 doesn't reset ext_numeric_literals)
PR c++/77948
	* c.opt (fext-numeric-literals): Add Var and Init.
	* c-opts.c (c_common_handle_option): Don't clear
	cpp_opts->ext_numeric_literals for -std=c++{11,14,1z}.
	(c_common_post_options): Clear it here if not set
	explicitly.

	* g++.dg/cpp0x/pr77948-1.C: New test.
	* g++.dg/cpp0x/pr77948-2.C: New test.
	* g++.dg/cpp0x/pr77948-3.C: New test.
	* g++.dg/cpp0x/pr77948-4.C: New test.
	* g++.dg/cpp0x/pr77948-5.C: New test.
	* g++.dg/cpp0x/pr77948-6.C: New test.

From-SVN: r241707
2016-10-31 17:38:21 +01:00
Jakub Jelinek
1e4fa9b112 re PR tree-optimization/77860 (ICE in gimple_build_assign_1, at gimple.c:420)
PR tree-optimization/77860
	* tree-ssa-reassoc.c (eliminate_using_constants): Handle
	also integral complex and vector constants.

	* gcc.dg/pr77860.c: New test.

From-SVN: r241706
2016-10-31 17:36:53 +01:00
Jakub Jelinek
520c47e803 dwarf2out.c (dwarf2out_define, [...]): Replace DW_MACRO_GNU_* constants with corresponding DW_MACRO_* constants.
* dwarf2out.c (dwarf2out_define, dwarf2out_undef, output_macinfo_op,
	optimize_macinfo_range, save_macinfo_strings): Replace
	DW_MACRO_GNU_* constants with corresponding DW_MACRO_* constants.
	(output_macinfo): Likewise.  Emit .debug_macro* rather than
	.debug_macinfo* even for -gstrict-dwarf -gdwarf-5.
	(init_sections_and_labels): Use .debug_macro* labels rather than
	.debug_macinfo* labels even for -gstrict-dwarf -gdwarf-5.
	(dwarf2out_finish): Use DW_AT_macros instead of DW_AT_macro_info
	or DW_AT_GNU_macros for -gdwarf-5.

From-SVN: r241705
2016-10-31 17:32:20 +01:00
Waldemar Brodkorb
c667cdd736 linux.h (UCLIBC_DYNAMIC_LINKER): Define.
2016-10-31  Waldemar Brodkorb  <wbx@openadk.org>

	* config/microblaze/linux.h (UCLIBC_DYNAMIC_LINKER): Define.

From-SVN: r241704
2016-10-31 09:04:21 -06:00
Carl Love
457cc672cb Index...
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 241702)
+++ ChangeLog	(working copy)
@@ -1,5 +1,10 @@
 2016-10-27  Carl Love  <cel@us.ibm.com>
 
+	* MAINTAINERS (Write After Approval): Fix my entry in the Write After
+	Approval list to make it alphabetical.
+
+2016-10-27  Carl Love  <cel@us.ibm.com>
+
 	* MAINTAINERS (Write After Approval): Add myself.
 
 2016-10-27  Andrew Burgess  <andrew.burgess@embecosm.com>
Index: MAINTAINERS
===================================================================
--- MAINTAINERS	(revision 241702)
+++ MAINTAINERS	(working copy)
@@ -477,9 +477,9 @@
 Gabor Loki					<loki@inf.u-szeged.hu>
 Sandra Loosemore				<sandra@codesourcery.com>
 Manuel López-Ibáñez				<manu@gcc.gnu.org>
+Carl Love					<cel@us.ibm.com>
 Martin v. Löwis					<loewis@informatik.hu-berlin.de>
 H.J. Lu						<hjl.tools@gmail.com>
-Carl Love					<cel@us.ibm.com>
 Christophe Lyon					<christophe.lyon@st.com>
 Luis Machado					<luisgpm@br.ibm.com>
 Ziga Mahkovec					<ziga.mahkovec@klika.si>

From-SVN: r241703
2016-10-31 15:01:13 +00:00
Uros Bizjak
85771f28c8 alpha-passes.def: Swap pass_convert_to_eh_region_ranges and pass_shorten_branches positions.
* config/alpha/alpha-passes.def: Swap pass_convert_to_eh_region_ranges
	  and pass_shorten_branches positions.

From-SVN: r241702
2016-10-31 15:56:49 +01:00
Senthil Kumar Selvaraj
dd57b05e96 Skip gcc.dg/lto/pr60449_0.c for avr
The testcase requires gettimeofday to be available for the target. The avr
target doesn't have an implementation, so the test always fails with a
linker error.

gcc/testsuite

2016-10-31  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

	* gcc.dg/lto/pr60449_0.c: Skip for avr.

From-SVN: r241701
2016-10-31 14:06:04 +00:00
Jakub Jelinek
e8d8d3c8bf re PR c++/77886 (-Wimplicit-fallthrough: breaks duff's device (in function templates))
PR c++/77886
	* pt.c (tsubst_expr) <case CASE_LABEL_EXPR> Copy over
	FALLTHROUGH_LABEL_P flag to the new LABEL_DECL.
	(tsubst_expr) <case LABEL_EXPR>: Likewise.

	* g++.dg/warn/Wimplicit-fallthrough-2.C: New test.

From-SVN: r241700
2016-10-31 14:39:49 +01:00
Le-Chun Wu
84ff4775d4 Add -Wshadow=global -Wshadow=local and -Wshadow=compatible-local.
This patch from Le-Chun Wu adds two new shadow warning flags for
C and C++:

  -Wshadow=local which warns if a local variable shadows another local
  variable or parameter,

  -Wshadow=compatible-local which warns if a local variable shadows
  another local variable or parameter whose type is compatible with
  that of the shadowing variable.

It is already on the google/main branch (Google ref 39127) and was
previously submitted by Diego Novillo and reviewed on
http://codereview.appspot.com/4452058

I addressed the review comments and made the following changes:
- Add -Wshadow=global (the default alias for -Wshadow).
- Make the documented options -Wshadow=global, -Wshadow=local
  and -Wshadow=compatible-local (with hidden undocumented aliases
  -Wshadow-local and -Wshadow-compatible-local for compatibility).
- The -Wshadow=global, -Wshadow=local and -Wshadow=compatible-local
  relationships are expressed in common.opt instead of in opts.c
  and documented in invoke.texi.
- The "previous declaration" warnings were turned into notes and use
  the (now) existing infrastructure instead of duplicating the warnings.
  The testcases have been adjusted to expect the notes.
- The conditional change in name-lookup.c for non-locals (where we
  don't want to change the warnings, but just check the global ones)
  has been dropped.
- Use warning_at in c-decl.c (warn_if_shadowing).

gcc/ChangeLog:
2016-10-30  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

       * doc/invoke.texi: Document Wshadow-local and Wshadow-compatible-local.
       * common.opt (Wshadow=global): New option. Default for -Wshadow.
       (Wshadow=local): New option.
       (Wshadow-local): Hidden alias for -Wshadow=local.
       (Wshadow=compatible-local): New option.
       (Wshadow-compatible-local): Hidden alias for
       -Wshadow=compatible-local.
       * doc/invoke.texi: Document Wshadow=global, Wshadow=local and
       Wshadow=compatible-local.

gcc/c/ChangeLog:
2016-10-30  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

       * c-decl.c (warn_if_shadowing): Use the warning code corresponding
       to the given -Wshadow= variant. Use warning_at.

gcc/cp/ChangeLog:
2016-10-30  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

       * name-lookup.c (pushdecl_maybe_friend): When emitting a
       shadowing warning, use the code corresponding to the
       given -Wshadow= variant.

gcc/testsuite/ChangeLog
2016-10-30  Le-Chun Wu  <lcwu@google.com>
            Mark Wielaard  <mjw@redhat.com>

       * gcc.dg/Wshadow-compatible-local-1.c: New test.
       * gcc.dg/Wshadow-local-1.c: Likewise.
       * gcc.dg/Wshadow-local-2.c: Likewise.
       * g++.dg/warn/Wshadow-compatible-local-1.C: Likewise.
       * g++.dg/warn/Wshadow-local-1.C: Likewise.
       * g++.dg/warn/Wshadow-local-2.C: Likewise.

Co-Authored-By: Mark Wielaard <mjw@redhat.com>

From-SVN: r241699
2016-10-31 13:21:59 +00:00
Richard Biener
6517958578 re PR lto/78129 (-Werror=suggest-final-types leads to -ENOSPC.)
2016-10-31  Richard Biener  <rguenther@suse.de>

	PR lto/78129
	* lto.c (do_whole_program_analysis): Bail out after errors
	from WPA analysis.

From-SVN: r241698
2016-10-31 12:52:23 +00:00
Bin Cheng
4cecd65999 tree-vect-slp.c (vect_get_and_check_slp_defs): New parameter SWAP.
* tree-vect-slp.c (vect_get_and_check_slp_defs): New parameter SWAP.
	Check slp defs for COND_EXPR by swapping/inverting operands if the
	new parameter SWAP indicates so.
	(vect_build_slp_tree_1): New parameter SWAP.  Check COND_EXPR stmt
	is isomorphic to the first stmt via swapping/inverting.  Store swap
	information in the new parameter SWAP.
	(vect_build_slp_tree): New local array SWAP and pass it to function
	vect_build_slp_tree_1.  Cleanup result handling code for function
	call to vect_get_and_check_slp_defs.  Skip operand swapping if the
	order of operands has been fixed as indicated by SWAP[i].

From-SVN: r241697
2016-10-31 09:30:47 +00:00
Bin Cheng
2c6a05b150 tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Skip unnecessary data dependence check after visited store stmt.
* tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Skip
	unnecessary data dependence check after visited store stmt.

From-SVN: r241696
2016-10-31 09:27:31 +00:00
Bill Schmidt
0b56e9adf8 re PR tree-optimization/71915 (A missed opportunity for SLSR)
[gcc]

2016-10-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/71915
	PR tree-optimization/71490
	* gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
	stride_type field.
	(find_basis_for_base_expr): Require stride types to match when
	seeking a basis.
	(alloc_cand_and_find_basis): Record the stride type.
	(slsr_process_phi): Pass stride type to alloc_cand_and_find_basis.
	(backtrace_base_for_ref): Pass types to legal_cast_p_1 rather than
	the expressions having those types.
	(slsr_process_ref): Pass stride type to alloc_cand_and_find_basis.
	(create_mul_ssa_cand): Likewise.
	(create_mul_imm_cand): Likewise.
	(create_add_ssa_cand): Likewise.
	(create_add_imm_cand): Likewise.
	(legal_cast_p_1): Change interface to accept types rather than the
	expressions having those types.
	(legal_cast_p): Pass types to legal_cast_p_1.
	(slsr_process_cast): Pass stride type to
	alloc_cand_and_find_basis.
	(slsr_process_copy): Likewise.
	(dump_candidate): Display stride type when a cast exists.
	(create_add_on_incoming_edge): Introduce a cast when necessary for
	the stride type.
	(analyze_increments): Change the code checking for invalid casts
	to rely on the stride type, and update the documentation and
	example.  Change the code checking for pointer multiplies to rely
	on the stride type.
	(insert_initializers): Introduce a cast when necessary for the
	stride type.  Use the stride type for the type of the initializer.

[gcc/testsuite]

2016-10-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/71915
	PR tree-optimization/71490
	* gcc.dg/tree-ssa/pr54245.c: Delete.
	* gcc.dg/tree-ssa/slsr-8.c: Adjust for new optimization and
	document why.

From-SVN: r241695
2016-10-31 03:04:59 +00:00
GCC Administrator
8972aa3362 Daily bump.
From-SVN: r241694
2016-10-31 00:16:18 +00:00
Jerry DeLisle
d4fc670294 re PR libfortran/78123 (Short reads with T edit descriptor not padding correctly)
2016-10-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/78123
	* io/transfer.c (formatted_transfer_scalar_read): Clear seen_eor
	only if we have tabbed to left of current position.

	* gfortran.dg/fmt_t_9.f: New test.

From-SVN: r241691
2016-10-30 22:14:01 +00:00
Thomas Koenig
396e56d2da re PR fortran/67219 (Incorrect conversion warning)
2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/67219
	* arith.c (gfc_int2real):  Change gfc_warning_now
	to gfc_warning.
	* primary.c (match_complex_constant):  If there
	is no comma, throw away any warning which might have
	been issued by gfc_int2real.

2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/67219
	* gfortran.dg/pr67219.f90:  New test.

From-SVN: r241689
2016-10-30 17:48:27 +00:00
Ian Lance Taylor
e9d33505a0 compiler: fix slice/array evaluation order bug
There was a phase ordering issue in the handling of "keyed" array
    literal expressions: the lowering phase was canonicalizing the
    indices/vals before the phase that fixed evaluation order, meaning that
    the evaluation order was incorrect. The fix is to capture the orginal
    ordering and use that ordering when doing traversals (there is already
    something similar being done for struct literal expressions).
    
    Fixes golang/go#17640
    
    Reviewed-on: https://go-review.googlesource.com/32296

From-SVN: r241688
2016-10-30 16:48:37 +00:00
Ian Lance Taylor
48e21b40b5 libgo: eliminate a lot of duplication in Makefile.am
I read through the GNU make manual.  I knew there had to be a way to do it.
    
    Remove the special netgo library.  The essential feature--using the Go
    DNS resolver--is now available by setting GODEBUG=netdns=go.
    
    Reviewed-on: https://go-review.googlesource.com/32333

From-SVN: r241687
2016-10-30 16:45:34 +00:00
Prathamesh Kulkarni
aee707743d arm.c (arm_const_not_ok_for_debug_p): Use VAR_P.
2016-10-30  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* config/arm/arm.c (arm_const_not_ok_for_debug_p): Use VAR_P.

From-SVN: r241686
2016-10-30 14:06:16 +00:00
Eric Botcazou
015415fa9d Add missing name
From-SVN: r241685
2016-10-30 10:15:55 +00:00
GCC Administrator
c7cd281fe4 Daily bump.
From-SVN: r241684
2016-10-30 00:16:15 +00:00
Jakub Jelinek
205b9ed14e re PR rtl-optimization/77919 (ICE converting DC to V2DF mode)
PR rtl-optimization/77919
	* expr.c (expand_expr_real_1) <normal_inner_ref>: Only avoid forcing
	into memory if both modes are complex and their inner modes have the
	same precision.  If the two modes are different complex modes, convert
	each part separately and generate a new CONCAT.

	* g++.dg/torture/pr77919-2.C: New test.

From-SVN: r241681
2016-10-29 22:22:36 +02:00
John David Anglin
e421be7677 pa64-hpux.h (FINI_SECTION_ASM_OP): Define to null string.
* config/pa/pa64-hpux.h (FINI_SECTION_ASM_OP): Define to null string.

From-SVN: r241680
2016-10-29 16:25:49 +00:00
Jakub Jelinek
a654d5d013 re PR tree-optimization/78148 (r241649 causes -fcompare-debug failure on ppc64le)
PR target/78148
	* gimple-ssa-store-merging.c
	(imm_store_chain_info::output_merged_store): Use build_aligned_type
	instead of SET_TYPE_ALIGN on shared integral type.

	* gcc.dg/pr78148.c: New test.

From-SVN: r241679
2016-10-29 17:55:50 +02:00
John David Anglin
2bc99a1a94 pa.h (BIGGEST_ALIGNMENT): Adjust comment.
* config/pa/pa.h (BIGGEST_ALIGNMENT): Adjust comment.
	(MALLOC_ABI_ALIGNMENT): Define to 128 on all targets except SOM.
	Adjust comment.

From-SVN: r241676
2016-10-29 15:30:26 +00:00
Jeff Law
c985000952 vax.h (REGNO_REG_CLASS): Access the REGNO argument.
* config/vax/vax.h (REGNO_REG_CLASS): Access the REGNO argument.
	* config/spu/spu.h (REGNO_REG_CLASS): Likewise.

From-SVN: r241675
2016-10-28 22:23:33 -06:00
Joseph Myers
fde1c2de05 * eo.po: Update.
From-SVN: r241673
2016-10-29 02:38:09 +01:00
GCC Administrator
8c61a3b67d Daily bump.
From-SVN: r241672
2016-10-29 00:16:14 +00:00
Steven G. Kargl
fdfc9e44c5 re PR fortran/71891 (fortran/symbol.c:4864: suspicious if ?)
2016-10-28  Steven G. Kargl <kargl@gcc.gnu.org>

	PR fortran/71891
	* symbol.c (gfc_type_compatible): Fix typo.

From-SVN: r241668
2016-10-28 23:37:03 +00:00
Ian Lance Taylor
94f56408db compiler, runtime: copy slice code from Go 1.7 runtime
Change the compiler handle append as the gc compiler does: call a
    function to grow the slice, but otherwise assign the new elements
    directly to the final slice.
    
    For the current gccgo memory allocator the slice code has to call
    runtime_newarray, not mallocgc directly, so that the allocator sets the
    TypeInfo_Array bit in the type pointer.
    
    Rename the static function cnew to runtime_docnew, so that the stack
    trace ignores it when ignoring runtime functions.  This was needed to
    fix the runtime/pprof tests on 386.
    
    Reviewed-on: https://go-review.googlesource.com/32218

From-SVN: r241667
2016-10-28 22:34:47 +00:00
Eric Botcazou
21f1031d6c * doc/sourcebuild.texi (Ada Tests): Remove mention of gcc chapter.
From-SVN: r241666
2016-10-28 21:06:14 +00:00
Eric Botcazou
894d8b4163 target.def (min_arithmetic_precision): New hook.
* target.def (min_arithmetic_precision): New hook.
	* doc/tm.texi.in (Misc): Add TARGET_MIN_ARITHMETIC_PRECISION.
	* doc/tm.texi: Regenerate.
	* internal-fn.c (expand_arith_overflow): Adjust handling of target
	dependent support by means of TARGET_MIN_ARITHMETIC_PRECISION.
	* targhooks.c (default_min_arithmetic_precision): New function.
	* targhooks.h (default_min_arithmetic_precision): Declare.
	* config/sparc/sparc.c (TARGET_MIN_ARITHMETIC_PRECISION): Define.
	(sparc_min_arithmetic_precision): New function.

From-SVN: r241665
2016-10-28 21:04:51 +00:00
Segher Boessenkool
9a5e1efcac combine: Improve change_zero_ext (fixes PR71847)
This improves a few things in change_zero_ext.  Firstly, it should use
the passed in pattern in recog_for_combine, not the pattern of the insn
(they are not the same if the whole pattern was replaced).  Secondly,
it handled zero_ext of a subreg, but with hard registers we do not get
a subreg, instead the mode of the reg is changed.  So this handles that.
Thirdly, after changing a zero_ext to an AND, the resulting RTL may become
non-canonical, like (ior (ashift ..) (and ..)); the AND should be first,
it is commutative.  And lastly, zero_extract as a set_dest wasn't handled
at all, but now it is.

This fixes the testcase in PR71847, and improves code generation in some
other edge cases too.


	PR target/71847
	* combine.c (change_zero_ext): Handle zero_ext of hard registers.
	Swap commutative operands in new RTL if needed.  Handle zero_ext
	in the set_dest.
	(recog_for_combine): Pass *pnewpat to change_zero_ext instead of
	PATTERN (insn).

From-SVN: r241664
2016-10-28 22:56:28 +02:00
Ian Lance Taylor
a5742b0158 re PR go/78144 (FAIL: time on systems with tzdata2016g installed)
PR go/78144
    libgo: incorporate fix for timezone test
    
    This brings over the test-only fix for issue 17276 into gccgo/libgo
    (with tzdata-2016g there is a new zone abbreviation).  This is a
    copy of https://golang.org/cl/29995.
    
    Reviewed-on: https://go-review.googlesource.com/32182

From-SVN: r241661
2016-10-28 20:21:52 +00:00
Prathamesh Kulkarni
e72531b9cb re PR tree-optimization/43721 (Failure to optimise (a/b) and (a%b) into single __aeabi_idivmod call)
2016-10-28  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
	    Kugan Vivekanandarajah  <kuganv@linaro.org>
	    Jim Wilson  <jim.wilson@linaro.org>

	PR tree-optimization/43721
	* target.def: New hook expand_divmod_libfunc.
	* doc/tm.texi.in: Add hook for TARGET_EXPAND_DIVMOD_LIBFUNC
	* doc/tm.texi: Regenerate.
	* internal-fn.def: Add new entry for DIVMOD ifn.
	* internal-fn.c (expand_DIVMOD): New.
	* tree-ssa-math-opts.c: Include optabs-libfuncs.h, tree-eh.h,
	targhooks.h.
	(widen_mul_stats): Add new field divmod_calls_inserted.
	(target_supports_divmod_p): New.
	(divmod_candidate_p): Likewise.
	(convert_to_divmod): Likewise.
	(pass_optimize_widening_mul::execute): Call
	calculate_dominance_info(), renumber_gimple_stmt_uids() at
	beginning of function. Call convert_to_divmod()
	and record stats for divmod.
	* config/arm/arm.c (arm_expand_divmod_libfunc): Override hook
	TARGET_EXPAND_DIVMOD_LIBFUNC.
	* doc/sourcebuild.texi: Add items for arm_divmod_simode, divmod,
	divmod_simode.

testsuite/
	* lib/target-supports.exp (check_effective_target_divmod): New.
	(check_effective_target_divmod_simode): Likewise.
	(check_effective_target_arm_divmod_simode): Likewise.
	* gcc.dg/divmod-1-simode.c: New test.
	* gcc.dg/divmod-1.c: Likewise.
	* gcc.dg/divmod-2-simode.c: Likewise.
	* gcc.dg/divmod-2.c: Likewise.
	* gcc.dg/divmod-3-simode.c: Likewise.
	* gcc.dg/divmod-3.c: Likewise.
	* gcc.dg/divmod-4-simode.c: Likewise.
	* gcc.dg/divmod-4.c: Likewise.
	* gcc.dg/divmod-5.c: Likewise.
	* gcc.dg/divmod-6-simode.c: Likewise.
	* gcc.dg/divmod-6.c: Likewise.
	* gcc.dg/divmod-7.c: Likewise.

Co-Authored-By: Jim Wilson <jim.wilson@linaro.org>
Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org>

From-SVN: r241660
2016-10-28 19:05:12 +00:00
Ian Lance Taylor
0dfeae289c re PR go/78143 (bootstrap broken in libgo on powerpc-linux-gnu)
PR go/78143
    runtime: build lfstack_32bit.go on ppc
    
    Missed a build tag.  This is GCC PR 78143.
    
    Reviewed-on: https://go-review.googlesource.com/32295

From-SVN: r241659
2016-10-28 18:57:36 +00:00
Jonathan Wakely
f0414b973f Make filesystem::path work with basic_string_view (P0392R0)
* include/experimental/bits/fs_path.h (__is_path_src)
	(_S_range_begin, _S_range_end): Overload to treat string_view as a
	Source object.
	(path::operator+=, path::compare): Overload for basic_string_view.
	* testsuite/experimental/filesystem/path/construct/string_view.cc:
	New test.
	* testsuite/experimental/filesystem/path/construct/
	string_view_cxx17.cc: New test.

From-SVN: r241658
2016-10-28 19:48:43 +01:00
Eric Botcazou
4713516712 dojump.c (do_jump_by_parts_greater_rtx): Invert probability when swapping the arms of the branch.
* dojump.c (do_jump_by_parts_greater_rtx): Invert probability when
	swapping the arms of the branch.
	* internal-fn.c (expand_addsub_overflow): Use a straight-line code
	sequence for the generic signed-signed-signed case.

From-SVN: r241656
2016-10-28 18:10:14 +00:00
Ian Lance Taylor
eae2ada503 libgo: redirect grep output in mkrsysinfo.sh to /dev/null
I noticed a stray useless output line when building libgo.
    
    Reviewed-on: https://go-review.googlesource.com/32294

From-SVN: r241655
2016-10-28 17:55:13 +00:00
Jonathan Wakely
fcfceb1afb Fix filesystem::path for iterators with const value_type
* include/experimental/bits/fs_path.h
	(path::_S_convert<_Iter>(_Iter, _Iter)): Remove cv-qualifiers from
	iterator's value_type.
	(path::_S_convert<_Iter>(_Iter __first, __null_terminated)): Likewise.
	Do not use operation not supported by input iterators.
	(path::__is_path_iter_src): Add partial specialization for const
	encoded character types.
	* testsuite/experimental/filesystem/path/construct/range.cc: Test
	construction from input iterators with const value types.

From-SVN: r241654
2016-10-28 18:47:57 +01:00
Aldy Hernandez
52e1b91e71 re PR debug/77773 (Segfault when compiling __simd64_float16_t using arm-none-eabi-g++ with debug information)
PR debug/77773
	* c-pretty-print.c (simple_type_specifier): Do not dereference `t'
	if NULL.

From-SVN: r241653
2016-10-28 16:41:29 +00:00
Jeff Law
a563e6e9a1 bfin.c (bfin_legitimate_address_p): Add missing fallthru comment.
* config/bfin/bfin.c (bfin_legitimate_address_p): Add missing
	fallthru comment.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Likewise.

From-SVN: r241651
2016-10-28 09:22:28 -06:00
Segher Boessenkool
64f6e1e158 sched: Do not mix prologue and epilogue insns
This patch makes scheduling not reorder prologue insns relative to
epilogue insns and vice versa.  This fixes PR78029.

The problem in that PR:
We have two insns, in this order:

(insn/f 300 299 267 8 (set (reg:DI 65 lr)
        (reg:DI 0 0)) 579 {*movdi_internal64}
     (expr_list:REG_DEAD (reg:DI 0 0)
        (expr_list:REG_CFA_RESTORE (reg:DI 65 lr)
            (nil))))
...
(insn/f 310 268 134 8 (set (mem/c:DI (plus:DI (reg/f:DI 1 1)
                (const_int 144 [0x90])) [6  S8 A8])
        (reg:DI 0 0)) 579 {*movdi_internal64}
     (expr_list:REG_DEAD (reg:DI 0 0)
        (expr_list:REG_CFA_OFFSET (set (mem/c:DI (plus:DI (reg/f:DI 1 1)
                        (const_int 144 [0x90])) [6  S8 A8])
                (reg:DI 65 lr))
            (nil))))

and sched swaps them (when compiling for power6, it tries to put memory
stores together, so insn 310 is moved up past 300 to go together with
some other store).  But the REG_CFA_RESTORE and REG_CFA_OFFSET cannot be
swapped (they both say where the orig value of LR now lives).


	PR rtl-optimization/78029
	* function.c (prologue_contains, epilogue_contains): New functions.
	(record_prologue_seq, record_epilogue_seq): New functions.
	* function.h (prologue_contains, epilogue_contains,
	record_prologue_seq, record_epilogue_seq): New declarations.
	* sched-deps.c (sched_analyze_insn): Make dependencies to prevent
	mixing prologue and epilogue insns.
	(init_deps): Initialize the new fields in struct deps_desc.
	* sched-int.h (struct deps_desc): New fields last_prologue,
	last_epilogue, and last_logue_was_epilogue.
	* shrink-wrap.c (emit_common_heads_for_components): Record all
	emitted prologue and epilogue insns.
	(emit_common_tails_for_components): Ditto.
	(insert_prologue_epilogue_for_components): Ditto.

From-SVN: r241650
2016-10-28 16:39:28 +02:00
Kyrylo Tkachov
f663d9ad6e GIMPLE store merging pass
2016-10-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR middle-end/22141
	* Makefile.in (OBJS): Add gimple-ssa-store-merging.o.
	* common.opt (fstore-merging): New Optimization option.
	* opts.c (default_options_table): Add entry for
	OPT_ftree_store_merging.
	* fold-const.h (can_native_encode_type_p): Declare prototype.
	* fold-const.c (can_native_encode_type_p): Define.
	* params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Define.
	(PARAM_MAX_STORES_TO_MERGE): Likewise.
	* timevar.def (TV_GIMPLE_STORE_MERGING): New timevar.
	* passes.def: Insert pass_tree_store_merging.
	* tree-pass.h (make_pass_store_merging): Declare extern
	prototype.
	* gimple-ssa-store-merging.c: New file.
	* doc/invoke.texi (Optimization Options): Document
	-fstore-merging.
	(--param documentation): Document store-merging-allow-unaligned
	and max-stores-to-merge.

2016-10-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
            Jakub Jelinek  <jakub@redhat.com>
            Andrew Pinski  <pinskia@gmail.com>

	PR middle-end/22141
	PR rtl-optimization/23684
	* gcc.c-torture/execute/pr22141-1.c: New test.
	* gcc.c-torture/execute/pr22141-2.c: Likewise.
	* gcc.target/aarch64/ldp_stp_1.c: Adjust for -fstore-merging.
	* gcc.target/aarch64/ldp_stp_4.c: Likewise.
	* gcc.dg/store_merging_1.c: New test.
	* gcc.dg/store_merging_2.c: Likewise.
	* gcc.dg/store_merging_3.c: Likewise.
	* gcc.dg/store_merging_4.c: Likewise.
	* gcc.dg/store_merging_5.c: Likewise.
	* gcc.dg/store_merging_6.c: Likewise.
	* gcc.dg/store_merging_7.c: Likewise.
	* gcc.target/i386/pr22141.c: Likewise.
	* gcc.target/i386/pr34012.c: Add -fno-store-merging to dg-options.
	* g++.dg/init/new17.C: Likewise.



Co-Authored-By: Andrew Pinski <pinskia@gmail.com>
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r241649
2016-10-28 14:18:50 +00:00