... so that debugger users can reference them instead of the renamed
subprograms. This is in accordance with the DWARF specification: the
section 3.2.3 (Imported (or Renamed) Declaration Entities) allows
DW_TAG_imported_declaration DIEs to be used "as a general means to
rename or provide an alias for an entity regardless of the context in
which the importing declaration or the imported entity occur." (wording
from the DWARFv3 and DWARFv4 specifications, allowed in DWARFv2).
gcc/ada/ChangeLog:
* gcc-interface/utils.c (gnat_write_global_declarations): Output
debugging information for top-level imported declarations.
gcc/ChangeLog:
* dwarf2out.c (gen_decl_die): Generate DW_TAG_imported_* instead
of DW_TAG_namespace for IMPORTED_DECL declarations. Call
dwarf2out_imported_module_or_decl_1 for all DWARF versions as
this function already takes care of checking what it can emit.
Bootstrapped, regtested and checked with GDB's testsuite on
x86_64-linux.
From-SVN: r230821
2015-11-24 Tom de Vries <tom@codesourcery.com>
* tree-ssa-loop-im.c (tree_ssa_lim): Make static.
(pass_lim::execute): Allow to run outside pass_tree_loop.
From-SVN: r230815
gcc/
* gcc/config/aarch64/aarch64.md (add<mode>3):
Block early expansion into 2 add instructions.
(add<mode>3_pluslong): New pattern to combine complex
immediates into 2 additions.
From-SVN: r230814
Calling rs6000_is_valid_and_mask on a reg instead of on a const_int is
not a good idea, as PR68332 and PR67677 as well as testing with
--enable-checking=yes,rtl show. Fix this.
PR target/66217
PR target/67677
PR target/68332
* config/rs6000/predicates.md (and_operand): Check that the operand
is a const_int before calling rs6000_is_valid_and_mask.
From-SVN: r230811
gcc/ChangeLog:
2015-11-24 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* hash-map-traits.h (simple_hashmap_traits ::remove): call
destructors on values that are being removed.
* mem-stats.h (hash_map): Pass type of values to
simple_hashmap_traits.
* tree-sra.c (sra_deinitialize): Remove work around for hash
maps not destructing values.
* genmatch.c (sinfo_hashmap_traits): Adjust.
* tree-ssa-uncprop.c (val_ssa_equiv_hash_traits): Likewise.
From-SVN: r230801
PR target/68483
* tree-vect-generic.c (lower_vec_perm): If VEC_PERM_EXPR
is valid vec_shr pattern, don't lower it even if can_vec_perm_p
returns false.
* optabs.c (shift_amt_for_vec_perm_mask): Return NULL_RTX
whenever first is nelt or above. Don't mask expected with
2 * nelt - 1.
* gcc.target/i386/pr68483-1.c: New test.
* gcc.target/i386/pr68483-2.c: New test.
From-SVN: r230797
gcc/
PR c/68337
* gimple-fold.c: Include ipa-chkp.h.
(gimple_fold_builtin_memory_op): Don't fold call if we
are going to instrument it and it may copy pointers.
gcc/testsuite/
PR c/68337
* gcc.target/i386/mpx/pr68337-1.c: New test.
* gcc.target/i386/mpx/pr68337-2.c: New test.
From-SVN: r230796
* gcc-interface/decl.c (gnat_to_gnu_entity) <Concurrent types>: In
ASIS mode, do a minimal translation for root types with discriminants.
* gcc-interface/trans.c (gnat_to_gnu) <N_Subunit>: Move around.
<N_Entry_Body, N_Protected_Body, N_Task_Body>: Likewise. In ASIS mode,
process the declarations attached to the body.
From-SVN: r230792
Some users of is_parallel_of_n_reg_sets disregard the clobbers in a
parallel after it has returned "yes, this is a parallel of N sets and
maybe some clobbers". But combine uses a clobber of const0_rtx to
indicate substitution failure, so this leads to disaster.
Fix this by checking for such special clobbers in is_parallel_of_n_reg_sets.
PR rtl-optimization/68381
* combine.c (is_parallel_of_n_reg_sets): Return false if the pattern
is poisoned.
From-SVN: r230786
* ree.c (add_removable_extension): Avoid mis-optimizing cases where
the source/dest of the target extension require a different number of
hard registers.
(combine_set_extension): Remove #if 0 code.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r230785
PR go/68496
reflect: Allocate space for FFI functions returning a zero-sized type.
The libffi library does not understand zero-sized types. We represent
them as a struct with a single field of type void. If such a type is
returned from a function, libffi will copy 1 byte of data. Allocate
space for that byte, although we won't use it.
Fixes https://gcc.gnu.org/PR68496.
Reviewed-on: https://go-review.googlesource.com/17175
From-SVN: r230776
gcc/c/ChangeLog:
PR objc/68438
* c-parser.c (c_parser_postfix_expression): Set up source ranges
for various Objective-C constructs: Class.name syntax,
@selector(), @protocol(), @encode(), and [] message syntax.
gcc/testsuite/ChangeLog:
PR objc/68438
* objc.dg/plugin: New subdirectory.
* objc.dg/plugin/diagnostic-test-expressions-1.m: New test file.
* objc.dg/plugin/plugin.exp: New file, based on
gcc.dg/plugin/plugin.exp.
From-SVN: r230775
2015-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/68465
* tree-ssa-sccvn.c (sccvn_dom_walker::before_dom_children):
Also record equalities from multiple predecessor blocks if
only one non-backedge exists.
* gcc.dg/tree-ssa/ssa-fre-52.c: New testcase.
From-SVN: r230764
PR target/68363
* config/aarch64/aarch64.c (aarch64_madd_needs_nop): Reject arguments
that are not INSN_P.
* gcc.target/aarch64/pr68363_1.c: New test.
From-SVN: r230760
PR c++/68001
gcc/c-family
PR c++/68001
* c-gimplify.c (c_gimplify_expr): Stop the process if see an error.
* cilk.c (recognize_spawn): Determine location in a more precise
way.
gcc/cp
* cp-gimplify.c (cp_gimplify_expr): Stop the process if see an error.
gcc/testsuite
* g++.dg/cilk-plus/CK/pr68001.cc: New test.
From-SVN: r230755
2015-11-23 Richard Biener <rguenth@gcc.gnu.com>
Jiong Wang <jiong.wang@arm.com>
gcc/
PR tree-optimization/68317
PR tree-optimization/68326
* tree-vrp.c (adjust_range_with_scev): Call drop_tree_overflow if the
final min and max are not infinity.
gcc/testsuite/
* gcc.dg/pr68317.c: New testcase.
From-SVN: r230754
2015-11-23 Olivier Hainque <hainque@adacore.com>
Eric Botcazou <botcazou@adacore.com>
* opt.ads (Exception_Mechanism): Now three values: Front_End_SJLJ,
Back_End_SJLJ and Back_End_ZCX.
(Back_End_Exceptions, Front_End_Exceptions, ZCX_Exceptions,
SJLJ_Exceptions): New functions, reflecting properties of the current
Exception_Mechanism.
* opt.adb: Implement the new functions.
* fe.h: Bind the new Exception_Mechanism and helper functions for gigi.
* exp_ch11.adb (Expand_At_End_Handler): Replace test on mechanism by
use of property helper and update comments.
(Expand_Exception_Handlers): Replace tests on mechanism by use of
helper. Restrict Abort_Defer to ZCX specifically.
* exp_ch9.adb (Expand_N_Asynchronous_Select): Replace tests on
mechanism by calls to helper functions. Abort_Undefer for ZCX only,
paired with Expand_Exception_Handlers.
* exp_sel.adb (Build_Abort_Block_Handler): Replace tests on mechanism
by calls to helper functions. Abort_Undefer for ZCX only, paired with
Expand_Exception_Handlers.
* lib-writ.ads (P line documentation): Add entry for "FX",
representative of unit compiled with Frontend_Exceptions True.
* lib-writ.adb (Output_Main_Program_Line): Add "FX" on P line if
compiled with Frontend_Exceptions True.
* ali.ads (ALIs_Record): Ada a Frontend_Exceptions component, to reflect
whether the ALI file contained an "FX" indication on the P line.
(Frontend_Exceptions_Specified): New boolean, to keep track of whether
at least an FX ALI file is in the closure.
* ali.adb (Scan_ALI): Handle "FX" on the P line.
(Initialize_ALI): Initialize Frontend_Exceptions_Specified to False.
* targparm.ads: Update desription of exception schemes.
(Frontend_Exceptions_On_Target): New flag, reflect Frontend_Exceptions
set to True in system.ads, or not set at all.
* targparm.adb (Targparm_Tags): Add FEX to convey Frontend_Exceptions.
Rename ZCD to ZCX for consistency.
(FEX_Str, Targparm_Str, Get_Target_Parameters): Adjust accordingly.
* gnat1drv.adb (Adjust_Global_Switches): Adjust Exception_Mechanism
setting, now from combination of Frontend_Exceptions and ZCX_By_Default.
* bcheck.adb (Check_Consistent_Zero_Cost_Exception_Handling): Rename
as ...
(Check_Consistent_Exception_Handling): Check consistency of both
ZCX_By_Default and Frontend_Exceptions.
(Check_Configuration_Consistency): Check_Consistent_Exception_Handling
if either flag was set at least once.
* make.adb (Check): Remove processing of a possible -fsjlj coming from
lang-specs.h.
* gnatlink.adb (Gnatlin): Likewise.
* gcc-interface/Makefile.in (gnatlib-sjlj/zcx): Now set
both ZCX_By_Default and Frontend_Exceptions.
* gcc-interface/decl.c (gnat_to_gnu_entity, case E_Variable):
Use eh property helper to test for back-end exceptions. Adjust
mechanism name when testing for front-end sjlj.
(case E_Procedure): Likewise.
* gcc-interface/trans.c (Handled_Sequence_Of_Statements_to_gnu):
Likewise, and rename local variables.
(Exception_Handler_to_gnu_sjlj): Rename as
Exception_Handler_to_gnu_fe_sjlj.
(Exception_Handler_to_gnu_zcx): Rename as
Exception_Handler_to_gnu_gcc and adjust tests on eh mechanisms
to use property helpers or correct mechanism name.
Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>
From-SVN: r230752
