Revert the fragile and complicated changes to assign_parms designed to
enable it to use RTL assigments chosen by cfgexpand, and instead have
cfgexpand use the RTL assignments by assign_parms, keying them off of
the default defs that are now necessarily introduced for each parm and
result. The possible lack of a default def was already a problem, and
the fallbacks in place were not enough, as shown by PR67312. We now
have checking asserts in set_rtl that verify that we're assigning to
each var a piece of RTL that matches the expectations set forth by
use_register_for_decl.
for gcc/ChangeLog
PR rtl-optimization/64164
PR tree-optimization/67312
PR middle-end/67340
PR middle-end/67490
PR bootstrap/67597
* cfgexpand.c (parm_in_stack_slot_p): Remove.
(ssa_default_def_partition): Remove.
(get_rtl_for_parm_ssa_default_def): Remove.
(set_rtl): Check that RTL assignments match expectations.
Loop on SUBREGs, CONCATs and PARALLELs subexprs. Set only the
default def location for params and results. Record SSA names
or types in REG and MEM attrs, respectively.
(set_parm_rtl): New.
(expand_one_ssa_partition): Drop logic that assigned MEMs with
unassigned addresses.
(adjust_one_expanded_partition_var): Don't accept NULL RTL on
deferred stack alloc vars.
(expand_used_vars): Skip partitions holding parm default defs.
Move adjust_one_expanded_partition_var loop...
(pass_expand::execute): ... here. Drop redundant assert.
Adjust comments before the final loop over all ssa names.
Require assigned rtl of parms and results to match exactly.
Reset its attributes to match them, not any other variables in
the same partition.
(expand_debug_expr): Use entry value for PARM's default defs
only iff they have zero nondebug uses.
* cfgexpand.h (parm_in_stack_slot_p): Remove.
(get_rtl_for_parm_ssa_default_def): Remove.
(set_parm_rtl): Declare.
* doc/invoke.texi: Improve wording.
* explow.c (promote_decl_mode): Fix promote_function_mode for
result decls not by reference.
(promote_ssa_mode): Disregard BLKmode from promote_decl, and
bypass TYPE_MODE to get the actual vector mode.
* function.c: Include tree-dfa.h. Revert 2015-08-14's and
2015-08-19's changes as follows. Drop include of
basic-block.h and df.h.
(rtl_for_parm): Remove.
(maybe_reset_rtl_for_parm): Remove.
(parm_in_unassigned_mem_p): Remove.
(use_register_for_decl): Add logic for RESULT_DECLs matching
assign_parms' behavior.
(split_complex_args): Revert.
(assign_parms_augmented_arg_list): Revert. Add comment
referencing the logic above.
(assign_parm_adjust_stack_rtl): Revert.
(assign_parm_setup_block): Revert. Use set_parm_rtl instead
of SET_DECL_RTL. Set up a REG if the parm demands so.
(assign_parm_setup_reg): Revert. Consolidated SET_DECL_RTL
calls into a single set_parm_rtl. Set up a temporary RTL
temporarily for expand_assignment.
(assign_parm_setup_stack): Revert. Use set_parm_rtl.
(assign_parms_unsplit_complex): Revert. Use set_parm_rtl.
(assign_bounds): Revert.
(assign_parms): Revert. Use set_parm_rtl.
(allocate_struct_function): Relayout result and parms of
non-abstruct functions.
(expand_function_start): Revert. Use set_parm_rtl. If the
result is not a hard reg, create a pseudo from the promoted
mode of the default def. Promote static chain mode.
* tree-outof-ssa.c (remove_ssa_form): Drop unused
partition_has_default_def. Set up
partitions_for_parm_default_defs.
(finish_out_of_ssa): Remove partition_has_default_def.
Release partitions_for_parm_default_defs.
* tree-outof-ssa.h (struct ssaexpand): Remove
partition_has_default_def. Add
partitions_for_parm_default_defs.
* tree-ssa-coalesce.c: Include tree-dfa.h, tm_p.h and
stor-layout.h.
(build_ssa_conflict_graph): Fix conflict-detection of default
defs of even unused default defs of params and results.
(for_all_parms): New.
(create_default_def): New.
(register_default_def): New.
(coalesce_with_default): New.
(create_outofssa_var_map): Create default defs for all parms
and results, and register their partitions. Add GIMPLE_RETURN
operands as coalesce candidates with results. Add default
defs of each parm or result as coalesce candidates with its
other defs. Mark each result def, and each default def of
parms, as used_in_copy.
(gimple_can_coalesce_p): Call it. Call use_register_for_decl
with the ssa names, even anonymous ones. Drop
parm_in_stack_slot_p calls. Require same signedness and
alignment.
(coalesce_ssa_name): Add coalesce candidates for all defs of
each parm and result, even unused ones.
(parm_default_def_partition_arg): New type.
(set_parm_default_def_partition): New.
(get_parm_default_def_partitions): New.
* tree-ssa-coalesce.h (get_parm_default_def_partitions): New.
* tree-ssa-live.c (partition_view_init): Regard unused defs of
parms and results as used.
(verify_live_on_entry): Don't error out just because they're
not live.
for gcc/testsuite/ChangeLog
PR rtl-optimization/64164
PR tree-optimization/67312
* gcc.dg/pr67312.c: New. From Zdenek Sojka.
* gcc.target/i386/stackalign/return-4.c: Add -O.
From-SVN: r228175
This adds the missing deep copy when assiging a constructor of a derived
type with allocatable components to an array.
The check for constantness is removed so that the deep_copy argument passed
to gfc_trans_scalar_assign is set to true.
PR fortran/67721
gcc/fortran/
* trans-expr.c (gfc_trans_assignment_1): Remove the non-constantness
condition guarding deep copy.
gcc/testsuite/
* gfortran.dg/alloc_comp_deep_copy_3.f03: New.
From-SVN: r228170
2013-09-26 Paul Thomas <pault@gcc.gnu.org>
PR fortran/67567
* resolve.c (resolve_fl_procedure): For module procedures, take
the parent module name and the submodule name from the name of
the namespace.
From-SVN: r228169
* dwarf2out.c (XCOFF_DEBUGGING_INFO): Default 0 definition.
(HAVE_XCOFF_DWARF_EXTRAS): Default to 0 definition.
(output_fde): Don't output length for debug_frame on AIX.
(output_call_frame_info): Don't output length for debug_frame on AIX.
(have_macinfo): Force to False for XCOFF_DEBUGGING_INFO and not
HAVE_XCOFF_DWARF_EXTRAS.
(add_AT_loc_list): Return early if XCOFF_DEBUGGING_INFO and not
HAVE_XCOFF_DWARF_EXTRAS.
(output_compilation_unit_header): Don't output length on AIX.
(output_pubnames): Don't output length on AIX.
(output_aranges): Delete argument. Compute length locally. Don't
output length on AIX.
(output_line_info): Don't output length on AIX.
(dwarf2out_finish): Don't compute aranges_length.
* dwarf2asm.c (XCOFF_DEBUGGING_INFO): Default 0 definition.
(dw2_asm_output_nstring): Emit .byte not .ascii on AIX.
* config/rs6000/rs6000.c (rs6000_output_dwarf_dtprel): Emit correct
symbol decoration for AIX.
(rs6000_xcoff_debug_unwind_info): New.
(rs6000_xcoff_asm_named_section): Emit .dwsect pseudo-op
for SECTION_DEBUG.
(rs6000_xcoff_declare_function_name): Emit different
.function pseudo-op when DWARF2_DEBUG. Don't call
xcoffout_declare_function for DWARF2_DEBUG.
* config/rs6000/xcoff.h (TARGET_DEBUG_UNWIND_INFO):
Redefine.
* config/rs6000/aix71.h: New.
* configure.ac (gcc_cv_as_aix_dwloc): Check AIX as for DWARF
locations support.
* configure: Regenerate.
* config.gcc (powerpc-ibm-aix[789]+): New stanza for AIX 7.1+ with
DWARF support.
From-SVN: r228167
2015-09-25 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/67614
* resolve.c (gfc_resolve_code): Prevent ICE for invalid EXPR_NULL.
2015-09-25 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/67614
* gfortran.dg/pr67614.f90: New test.
From-SVN: r228156
2015-09-25 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/67525
* parse.c (match_deferred_characteristics): Remove an assert, which
allows an invalid SELECT TYPE selector to be detected.
2015-09-25 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/67525
* gfortran.dg/pr67525.f90: New test.
From-SVN: r228155
2015-09-25 Vladimir Makarov <vmakarov@redhat.com>
PR target/61578
* lra-constarints.c (match_reload): Check presence of the input pseudo
in the output pseudo.
From-SVN: r228153
This patch unsets -freorder-blocks-and-partition when -fprofile-use
is not specified. Function splitting was not actually being performed
in that case, as probably_never_executed_bb_p does not distinguish
any basic blocks as being cold vs hot when there is no profile data.
Leaving it enabled, however, causes the assembly code generator to create
(empty) cold sections and labels, leading to unnecessary size overhead.
2015-09-25 Teresa Johnson <tejohnson@google.com>
* opts.c (finish_options): Unset -freorder-blocks-and-partition
if not using profile.
From-SVN: r228136
for tuple constructors that construct from other tuples.
2015-09-25 Ville Voutilainen <ville.voutilainen@gmail.com>
Avoid creating dangling references in case of nested tuples
for tuple constructors that construct from other tuples.
* include/std/tuple (_TC::_NonNestedTuple): New.
* include/std/tuple (tuple::_TNTC): New.
* include/std/tuple (tuple(const tuple<_UElements...>&),
tuple(tuple<_UElements...>&&): Use _TNTC.
* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: New.
From-SVN: r228134
Fortran passes NULL where a non-null string is expected by the pretty-printer,
which causes a sanitizer warning. This could have been found earlier by using
gcc_checking_assert. Even if the assertion is false, the result is just an
incomplete diagnostic, thus it seems more user-friendly to assert only when
checking. I do not have any idea how to properly fix the Fortran bug, thus this
patch simply works-around it.
gcc/fortran/ChangeLog:
2015-09-25 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR pretty-print/67567
* resolve.c (resolve_fl_procedure): Work-around when iface->module
== NULL.
gcc/ChangeLog:
2015-09-25 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR pretty-print/67567
* pretty-print.c (pp_string): Add gcc_checking_assert.
* pretty-print.h (output_buffer_append_r): Likewise.
From-SVN: r228131
gcc/
PR target/67675
* config/sh/sh-mem.cc (sh_expand_cmpstr): Check alignment of addr1 and
addr2 individually. Don't emit logical or insn if one is known to
be aligned approriately.
(sh_expand_cmpnstr): Likewise.
gcc/testsuite/
PR target/67675
* gcc.target/sh/pr67675.c: New.
From-SVN: r228118
The testcase triggered an ICE because the builtin expansion
code passed the output of expand_normal directly to the SET_FP[SC]R
generator, without forcing it into a register first.
gcc/
* config/aarch64/aarch64-builtins.c (aarch64_expand_builtin): Force
__builtin_aarch64_fp[sc]r arguments into a register.
gcc/testsuite/
* gcc.target/aarch64/fpcr_fpsr_1.c: New file.
From-SVN: r228116
Actually, I was trying to reject non-warning options as argument to
-Werror=. However, the new test fails because -fdiagnostics-color=never is
always placed by the driver after the warning options when calling the compiler
proper. This patch prunes all -fdiagnostics-color from the command-line but the
last one, which is moved to the first position.
gcc/ChangeLog:
2015-09-24 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR driver/67640
* opts-common.c (prune_options): Discard all -fdiagnostics-color
but the last one, which is moved to the front to be processed
first.
* opts.c (enable_warning_as_error): Reject options that do not
control warnings.
gcc/testsuite/ChangeLog:
2015-09-24 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR driver/67640
* gcc.dg/Werror-13.c: New test.
From-SVN: r228094
2015-09-23 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.c (debug_stack_info): Invert the test
for info->spe_gp_size.
From-SVN: r228086
2015-09-24 Richard Biener <rguenther@suse.de>
PR lto/67699
* lto-cgraph.c (compute_ltrans_boundary): Do not stream
abstract origins.
* g++.dg/pr67699.C: New testcase.
From-SVN: r228084
2015-09-24 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.h (vn_reference_op_struct): Add clique and base
members.
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Record clique
and base for MEM_REF and TARGET_MEM_REF. Handle BIT_FIELD_REF
offset.
(ao_ref_init_from_vn_reference): Record clique and base in the
built base.
* tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise
* g++.dg/tree-ssa/restrict3.C: New testcase.
From-SVN: r228074
2015-09-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/48885
* tree-ssa-structalias.c (visit_loadstore): Handle default defs
as not including any restrict tags from other pointers.
* gcc.dg/tree-ssa/restrict-6.c: New testcase.
From-SVN: r228073
Alexandre Oliva
David Edelsohn
GCC Administrator
Mikael Morin
Paul Thomas
Jeff Law
Steven G. Kargl
Vladimir Makarov
Vladimir Makarov
Tobias Burnus
Joseph Myers
Teresa Johnson
Teresa Johnson
Ville Voutilainen
Manuel López-Ibáñez
Oleg Endo
Richard Sandiford
H.J. Lu
Marek Polacek
John David Anglin
Michael Collison
Jiong Wang
Jonathan Wakely
Szabolcs Nagy
Ian Lance Taylor
Segher Boessenkool
Richard Biener
Richard Earnshaw
Thomas Schwinge
Kirill Yukhin
Rainer Orth
Kyrylo Tkachov