b2df3bb...
by
aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4>
revert to assign_parms assignments using default defs
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.
ffb0343...
by
pault <pault@138bc75d-0d04-0410-961f-82ee72b054a4>
2013-09-26 Paul Thomas <email address hidden>
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.
99d74ab...
by
dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4>
* gcc.dg/pr64935-1.c: XFAIL on AIX.
* gcc.dg/pr64935-2.c: XFAIL on AIX.
* gcc.dg/debug/dwarf2/dwarf2-macro2.c: XFAIL Start new file on AIX.
* gcc.dg/debug/dwarf2/dwarf2-macro2.c: XFAIL At line number on AIX.
* gcc.dg/debug/dwarf2/global-used-types.c: XFAIL ascii on AIX.
* gcc.dg/debug/dwarf2/noreturn-function-keyword.c: XFAIL DW_AT_noreturn on AIX.
* gcc.dg/debug/dwarf2/noreturn-function-attribute.c: XFAIL DW_AT_noreturn on AIX.
* gcc.dg/debug/dwarf2/lang-c89.c: XFAIL DW_AT_language on AIX.
* gcc.dg/debug/dwarf2/stacked-qualified-types-3.c: XFAIL DW_TAG on AIX.
* g++.dg/debug/dwarf2/deleted-member-function.C: XFAIL DW_AT_GNU_deleted on AIX.
* g++.dg/debug/dwarf2/noreturn-function.C: XFAIL DW_AT_noreturn on AIX.
* g++.dg/debug/dwarf2/template-params-6.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/dwarf4-nested.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/pubnames-2.C: Skip on AIX.
* g++.dg/debug/dwarf2/pr44641.C: Skip on AIX.
* g++.dg/debug/dwarf2/pr46527.C: XFAIL on AIX.
* g++.dg/debug/dwarf2/imported-decl-2.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/namespace-1.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/global-used-types-1.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/lambda1.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/pubnames-3.C: Skip on AIX.
* g++.dg/debug/dwarf2/pr61433.C: XFAIL on AIX.
* g++.dg/debug/dwarf2/nested-4.C: XFAIL on AIX.
* g++.dg/debug/dwarf2/template-func-params-6.C: XFAIL ascii on AIX.
* g++.dg/debug/dwarf2/lineno-simple1.C: XFAIL on AIX.
67429b3...
by
dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4>
* 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.
