registers.

The patterns can handle pop multiple with writeback and return (loading into
PC directly).
To handle return, the patterns use a new special predicate
pop_multiple_return, that uses ldm_stm_operation_p function from a previous
patch. To output assembly, the patterns use a new function
arm_output_multireg_pop.

This patch also adds a new function arm_emit_multi_reg_pop
that emits RTL that matches the new pop patterns for integer registers.
This is a helper function for epilogue expansion. It is used by a later
patch.

2012-06-18  Ian Bolton  <ian.bolton@arm.com>
            Sameera Deshpande  <sameera.deshpande@arm.com>
            Greta Yorsh  <greta.yorsh@arm.com>

        * config/arm/arm.md (load_multiple_with_writeback) New define_insn.
        (load_multiple, pop_multiple_with_writeback_and_return) Likewise.
        (pop_multiple_with_return, ldr_with_return) Likewise.
        * config/arm/predicates.md (pop_multiple_return) New special predicate.
        * config/arm/arm-protos.h (arm_output_multireg_pop) New declaration.
        * config/arm/arm.c (arm_output_multireg_pop) New function.
        (arm_emit_multi_reg_pop): New function.


Co-Authored-By: Greta Yorsh <greta.yorsh@arm.com>
Co-Authored-By: Sameera Deshpande <sameera.deshpande@arm.com>

From-SVN: r188739

This patch updates ldm_stm_operation_p to check for loads that if SP is in
the register list, then the base register is SP. It guarantees that SP is
reset correctly when an LDM instruction is interrupted. Otherwise, we might
end up with a corrupt stack. 

gcc/

2012-06-18  Greta Yorsh  <greta.yorsh@arm.com>

	* config/arm/arm.c (ldm_stm_operation_p): Require SP
        as base register for loads if SP is in the register list.

From-SVN: r188738

2012-06-18  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53693
	* tree-vect-patterns.c (vect_operation_fits_smaller_type):
	Reject operands with more than one use.

	* g++.dg/torture/pr53693.C: New testcase.

From-SVN: r188733

re PR tree-optimization/53703 (verify_ssa: definition in block 105 does not dominate use in block 103)

gcc:

2012-06-18  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR tree-optimization/53703
	* tree-ssa-phiopt.c (hoist_adjacent_loads): Skip virtual phis;
	correctly set bb_for_def[12].

gcc/testsuite:

2012-06-18  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR tree-optimization/53703
	* gcc.dg/torture/pr53703.c: New test.

From-SVN: r188731

gcc/
	* config/vax/vax.h (VMS_TARGET): Remove.

cp/
	* decl.c (finish_function): Remove code conditional on VMS_TARGET.

From-SVN: r188729

2012-06-18  Richard Guenther  <rguenther@suse.de>

	* tree-vrp.c (extract_range_from_assert): Split out range
	intersecting code.
	(intersect_ranges): New function.
	(vrp_intersect_ranges): Likewise.

From-SVN: r188728

2012-06-18  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_gimplify_va_arg): Revert change from
	r187965.

From-SVN: r188727

From-SVN: r188726

re PR middle-end/53698 (ICE: in plus_constant, at explow.c:88 with -O -mx32 -maddress-mode=long -fno-tree-dominator-opts)

gcc/
	PR middle-end/53698
	* expr.c (expand_expr_addr_expr_1): Convert to tmode before
	performing an addition.

gcc/testsuite/
	PR middle-end/53698
	* gcc.target/i386/pr53698.c: New test.

From-SVN: r188725

From-SVN: r188721

From-SVN: r188717

From-SVN: r188716

	* gcc.target/i386/pr33329.c (f): Increase tabs array to 1024.

From-SVN: r188715

	* output.h (split_double): Move prototype to rtl.h.
	(constructor_static_from_elts_p): Move prototype to tree.c.
	* rtl.h (split_double): Moved here from output.h.
	* tree.h (constructor_static_from_elts_p): Moved here from output.h.
	* final.c (split_double): Move from here ...
	* rtlanal.c (split_double): ... to here.
	* expr.c: Do not include output.h.

From-SVN: r188714

From-SVN: r188713

2012-06-17  Steven Bosscher  <steven@gcc.gnu.org>

	* cfglayout.h: Remove.
	* cfglayout.c: Remove.
	* function.h (struct function): Remove x_last_location field.
	* function.c: Do not include cfglayout.h.
	(expand_function_start): Do not call no-op force_next_line_note.
	(expand_function_end): Likewise.
	* cfgrtl.c: Do not include cfglayout.h.  Include gt-cfgrtl.h.
	(unlink_insn_chain): Moved here from cfglayout.c.
	(skip_insns_after_block, label_for_bb, record_effective_endpoints,
	into_cfg_layout_mode, outof_cfg_layout_mode,
	pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode,
	relink_block_chain, fixup_reorder_chain, verify_insn_chain,
	fixup_fallthru_exit_predecessor, force_one_exit_fallthru,
	cfg_layout_can_duplicate_bb_p, duplicate_insn_chain,
	cfg_layout_duplicate_bb, cfg_layout_initialize, break_superblocks,
	cfg_layout_finalize): Likewise.
	(rtl_can_remove_branch_p): Likewise.
	* rtl.h (insn_scope): Move prototype from cfglayout.h here.
	(duplicate_insn_chain): Likewise.
	(force_next_line_note): Remove prototype.
	* emit-rtl.c: Do not include tree-flow.h, egad.  Include vecprim.h.
	(last_location): Remove #define to emit.x_last_location.
	(force_next_line_note): Remove no-op function.
	(init_emit): Don't set x_last_location.
	(block_locators_locs, block_locators_blocks, locations_locators_locs,
	locations_locators_vals, prologue_locator, epilogue_locator,
	curr_location, last_location, curr_block, last_block, curr_rtl_loc):
	Move POD to here from cfglayout.c.
	(insn_locators_alloc, insn_locators_finalize, insn_locators_free,
	set_curr_insn_source_location, get_curr_insn_source_location,
	set_curr_insn_block, get_curr_insn_block, curr_insn_locator,
	locator_scope, insn_scope, locator_location, locator_line, insn_line,
	locator_file, insn_file, locator_eq): Move to here from cfglayout.c.
	* cfghooks.h: Remove double-include protection.
	(can_copy_bbs_p, copy_bbs): Move prototypes from cfglayout.h to here.
	* cfghooks.c (can_copy_bbs_p, copy_bbs): Move to here from cfglayout.c.
	* final.c: Do not include cfglayout.h.
	(choose_inner_scope, change_scope): Move to here from cfglayout.c.
	(reemit_insn_block_notes): Likewise.  Make static.
	* tree-flow.h (tree_could_trap_p, operation_could_trap_helper_p,
	operation_could_trap_p, tree_could_throw_p): Move from here...
	* tree.h: ... to here.
	* gengtype.c (open_base_files): Remove cfglayout.h from the list.
	* profile.c: Do not include cfghooks.h.
	* cfgloopmanip.c: Do not include cfglayout.h and cfghooks.h.
	* modulo-sched.c: Likewise.
	* loop-unswitch.c: Do not include cfglayout.h.
	* sched-ebb.c: Likewise.
	* tracer.c: Likewise.
	* ddg.c: Likewise.
	* tree-vect-loop-manip.c: Likewise.
	* loop-init.c: Likewise.
	* dwarf2out.c: Likewise.
	* hw-doloop.c: Likewise.
	* loop-unroll.c: Likewise.
	* cfgcleanup.c: Likewise.
	* bb-reorder.c: Likewise.
	* sched-rgn.c: Likewise.
	* tree-cfg.c: Likewise.
	* config/alpha/alpha.c: Likewise.
	* config/spu/spu.c: Likewise.
	* config/sparc/sparc.c: Likewise.
	* config/sh/sh.c: Likewise.
	* config/c6x/c6x.c: Likewise.
	* config/ia64/ia64.c: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/score/score.c: Likewise.
	* config/mips/mips.c: Likewise.
	* config/bfin/bfin.c: Likewise.
	* Makefile.in (CFGAYOUT_H): Remove, and fixup users.
	* config/rs6000/t-rs6000 (rs6000.o): Do not depend on cfglayout.h.
	* config/spu/t-spu-elf (spu.o: $): Likewise.
	* config/sparc/t-sparc (sparc.o): Do not depend on CFGLAYOUT_H.

From-SVN: r188712

	* cfgloop.h: Do not include rtl.h.
	(enum iv_extend_code): New.
	(struct rtx_iv): Use iv_extend_code instead of rtx_code.
	* Makefile.in (CFGLOOP_H): Do not depend on RTL_H.
	* loop-iv.c (iv_extend_to_rtx_code): New function to translate
	an IV_EXTEND_CODE to an RTX_CODE.
	(dump_iv_info): Update for rtx_iv field type change.
	(iv_constant): Likewise.
	(iv_subreg): Likewise.
	(iv_extend): Likewise.
	(iv_neg): Likewise.
	(iv_add): Likewise.
	(iv_mult): Likewise.
	(iv_shift): Likewise.
	(get_biv_step_1): Likewise.
	(get_biv_step): Likewise.
	(iv_analyze_biv): Likewise.
	(get_iv_value): Likewise.
	(shorten_into_mode): Likewise.
	(canonicalize_iv_subregs): Likewise.
	* sese.c (sese_build_liveouts): Use MAY_HAVE_DEBUG_STMTS instead
	of MAY_HAVE_DEBUG_INSNS.
	* tree-ssa-loop-ivopts.c: Include recog.h after expr.h.
	* tree-ssa-loop-prefetch.c: Likewise.

From-SVN: r188711

	* expmed.c (ceil_log2): Move from here...
	* hwint.c: ... to here for older GCCs...
	* hwint.h: ... and here for newer GCCs.
	* rtl.h (ceil_log2): Remove prototype.

	* tree-phinodes.c: Do not include rtl.h.
	* Makefile.in (tree-phinodes.o): Do not depend on RTL_H.

From-SVN: r188710

	* config/cris/cris.h (TARGET_ELF): Remove.
	(FORCE_EH_FRAME_INFO_IN_DATA_SECTION): Remove.
	(CRIS_ASM_OUTPUT_ALIGNED_DECL_COMMON): Simpify using TARGET_ELF==1.
	(LOCAL_LABEL_PREFIX): Likewise.
	* config/cris/cris.c (cris_target_asm_named_section): Remove.
	(cris_option_override): Simpify using TARGET_ELF==1.
	(cris_file_start): Likewise.
	* config/cris/cris-protos.h (cris_target_asm_named_section): Remove.

From-SVN: r188709

2012-06-17  Tobias Burnus  <burnus@net-b.de>

        PR fortran/53691
        PR fortran/53685
        * check.c (gfc_calculate_transfer_sizes): Return if
        SIZE= is not constant or source-size cannot be determined.

2012-06-17  Tobias Burnus  <burnus@net-b.de>

        PR fortran/53691
        PR fortran/53685
        * gfortran.dg/transfer_check_3.f90: New.

From-SVN: r188708

	* config/i386/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Use
	__builtin_expect when checking for exceptions.
	* config/ia64/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Ditto.

From-SVN: r188705

	* config/i386/sse.md (vcvtph2ps): Fix vec_select selector.

From-SVN: r188704

	* gcc.dg/tree-ssa/vrp68.c: Fix scan-tree-dump-times argument order.

From-SVN: r188703

From-SVN: r188701

2012-06-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/53642
        PR fortran/45170
        * frontend-passes.c (optimize_assignment): Don't remove RHS's
        trim when assigning to a deferred-length string.
        * trans-expr.c (gfc_trans_assignment_1): Ensure that the RHS string
        length is evaluated before the deferred-length LHS is reallocated.

2012-06-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/53642
        PR fortran/45170
        * gfortran.dg/deferred_type_param_8.f90: New.

From-SVN: r188692

	PR middle-end/53590
	* tree-inline.c (initialize_cfun): Copy can_delete_dead_exceptions.

From-SVN: r188691

From-SVN: r188689

gcov.exp (verify-lines, [...]): Use testname that includes flags, passed in as new argument, in pass/fail messages.

	* lib/gcov.exp (verify-lines, verify-branches, verify-calls): Use
	testname that includes flags, passed in as new argument, in
	pass/fail messages.
	(run_gcov): Get testname from dg-test, use it in pass/fail messages
	and pass it to verify-* procedures.

From-SVN: r188681

	* g++.dg/torture/stackalign/stackalign.exp: Combine stack
	alignment torture options with usual torture options.

From-SVN: r188678

	* g++.dg/cpp0x/auto27.C: Add comments to checks for multiple
	messages reported for one line of source code.
	* g++.dg/cpp0x/constexpr-decl.C: Likewise.
	* g++.dg/cpp0x/decltype2.C: Likewise.
	* g++.dg/cpp0x/decltype3.C: Likewise.
	* g++.dg/cpp0x/lambda/lambda-syntax1.C: Likewise.
	* g++.dg/cpp0x/regress/error-recovery1.C: Likewise.
	* g++.dg/cpp0x/static_assert3.C: Likewise.
	* g++.dg/cpp0x/udlit-cpp98-neg.C: Likewise.
	* g++.dg/cpp0x/udlit-shadow-neg.C: Likewise.
	* g++.dg/cpp0x/union1.C: Likewise.
	* g++.dg/cpp0x/variadic-ex10.C: Likewise.
	* g++.dg/cpp0x/variadic-ex14.C: Likewise.
	* g++.dg/cpp0x/variadic2.C: Likewise.
	* g++.dg/cpp0x/variadic20.C: Likewise.
	* g++.dg/cpp0x/variadic74.C: Likewise.
	* g++.dg/diagnostic/bitfld2.C: Likewise.
	* g++.dg/ext/attrib44.C: Likewise.
	* g++.dg/ext/no-asm-1.C: Likewise.
	* g++.dg/other/error34.C: Likewise.
	* g++.dg/parse/crash46.C: Likewise.
	* g++.dg/parse/error10.C: Likewise.
	* g++.dg/parse/error2.C: Likewise.
	* g++.dg/parse/error3.C: Likewise.
	* g++.dg/parse/error36.C: Likewise.
	* g++.dg/parse/error8.C: Likewise.
	* g++.dg/parse/error9.C: Likewise.
	* g++.dg/parse/parser-pr28152-2.C: Likewise.
	* g++.dg/parse/parser-pr28152.C: Likewise.
	* g++.dg/parse/template25.C: Likewise.
	* g++.dg/parse/typename11.C: Likewise.
	* g++.dg/tc1/dr147.C: Likewise.
	* g++.dg/template/deduce3.C: Likewise.
	* g++.dg/template/koenig9.C: Likewise.
	* g++.dg/template/pr23510.C: Likewise.
	* g++.dg/warn/pr12242.C: Likewise.
	* g++.dg/warn/pr30551-2.C: Likewise.
	* g++.dg/warn/pr30551.C: Likewise.
	* g++.old-deja/g++.other/typename1.C: Likewise.
	* g++.old-deja/g++.pt/niklas01a.C: Likewise.

From-SVN: r188677

passes.c (init_optimization_passes): Remove pass_call_cdce from its current position and insert after pass_dce.

2012-06-15   Easwaran Raman  <eraman@google.com>

	* passes.c (init_optimization_passes): Remove pass_call_cdce
	from its current position and insert after pass_dce.

From-SVN: r188675

From-SVN: r188673

	* arm.c (note_invalid_constants): Don't return a result.
	(arm_memory_load_p): Delete function.
	(arm_const_double_rtx): Delete iterator variable i;
	(fp_immediate_constant): Likewise.
	(fp_const_from_val): Likewise.

	* arm.c (arm_init_iwmmxt_builtins): Delete void_ftype_void.

From-SVN: r188672

2012-06-15  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/51033
	* c-typeck.c (c_build_vec_perm_expr): Move to c-family/c-common.c.
        * c-tree.h (c_build_vec_perm_expr): Move to c-family/c-common.h.

cp/

2012-06-15  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/51033
	* semantics.c (literal_type_p): Handle VECTOR_TYPE.
        (potential_constant_expression_1): Handle VEC_PERM_EXPR.
        * parser.c (cp_parser_postfix_expression): Handle RID_BUILTIN_SHUFFLE.

c-family
2012-06-15  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/51033
	* c-common.h (c_build_vec_perm_expr): Move decl here.
	* c-common.c (c_build_vec_perm_expr): Move definition
	here.

2012-06-15  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	PR c++/51033
	* c-c++-common/torture/vshuf-16.inc: Move from gcc.c-torture/execute/.
	* c-c++-common/torture/vshuf-2.inc: Likewise.
	* c-c++-common/torture/vshuf-4.inc: Likewise.
	* c-c++-common/torture/vshuf-8.inc: Likewise.
	* c-c++-common/torture/vshuf-main.inc: Likewise.
	* c-c++-common/torture/vshuf-v16hi.c: Likewise.
	* c-c++-common/torture/vshuf-v16qi.c: Likewise.
	* c-c++-common/torture/vshuf-v2df.c: Likewise.
	* c-c++-common/torture/vshuf-v2di.c: Likewise.
	* c-c++-common/torture/vshuf-v2sf.c: Likewise.
	* c-c++-common/torture/vshuf-v2si.c: Likewise.
	* c-c++-common/torture/vshuf-v4df.c: Likewise.
	* c-c++-common/torture/vshuf-v4di.c: Likewise.
	* c-c++-common/torture/vshuf-v4hi.c: Likewise.
	* c-c++-common/torture/vshuf-v4sf.c: Likewise.
	* c-c++-common/torture/vshuf-v4si.c: Likewise.
	* c-c++-common/torture/vshuf-v8hi.c: Likewise.
	* c-c++-common/torture/vshuf-v8qi.c: Likewise.
	* c-c++-common/torture/vshuf-v8si.c: Likewise.

From-SVN: r188671

	* config/avr/avr.c (avr_default_expand_builtin): New function.
	(avr_expand_builtin): Use it.
	(avr_expand_unop_builtin): Remove.
	(avr_expand_binop_builtin): Remove.
	(avr_expand_triop_builtin): Remove.

From-SVN: r188670

	PR middle-end/38474
	* cfgexpand.c (add_alias_set_conflicts): Remove.
	(expand_used_vars): Don't call it.
	(aggregate_contains_union_type): Remove.
	* function.c (n_temp_slots_in_use): New static data.
	(make_slot_available, assign_stack_temp_for_type): Update it.
	(init_temp_slots): Zero it.
	(remove_unused_temp_slot_addresses): Use it for quicker removal.
	(remove_unused_temp_slot_addresses_1): Use htab_clear_slot.

From-SVN: r188667

	* gimplify.c (gimplify_compound_literal_expr): Take gimple_test_f
	argument, don't emit assign statement if value is directly usable.
	(gimplify_expr): Adjust.

testsuite/
	* gcc.dg/tree-ssa/vector-4.c: New test.

From-SVN: r188665

	* gimplify.c (gimplify_modify_expr): Fold generated statements.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Check flag_ltrans.

testsuite/
	* gcc.dg/debug/dwarf2/inline3.c: Adjust.
	* gcc.dg/tree-ssa/foldstring-1.c: Adjust.

From-SVN: r188664

tree-vrp.c (set_and_canonicalize_value_range): Use canonical predicates to set VR_UNDEFINED and VR_VARYING.

2012-06-15  Richard Guenther  <rguenther@suse.de>

	* tree-vrp.c (set_and_canonicalize_value_range): Use canonical
	predicates to set VR_UNDEFINED and VR_VARYING.  Drop a case
	we assert for in set_value_range to VR_VARYING.

From-SVN: r188663

	* arm.md (addsf3, adddf3): Use s_register_operand.
	(subsf3, subdf3): Likewise.
	(mulsf3, muldf3): Likewise.
	(difsf3, divdf3): Likewise.
	(movsfcc, movdfcc): Likewise.
	* predicates.md (f_register_operand): Delete.
	(arm_float_rhs_operand): Delete.
	(arm_float_add_operand): Delete.
	(arm_float_compare_operand): Use s_register_operand when
	there's no VFP.
	(cirrus_register_operand): Delete.
	(cirrus_fp_register): Delete.
	(cirrus_shift_const): Delete.
	(cmpdi_operand): Remove Maverick support.
	* constraints.md (f, v, H): Delete constraints.
	(G): Update documentation.
	* arm.c (fp_consts_inited): Convert to bool.
	(strings_fp): Delete.
	(values_fp): Delete.
	(value_fp0): New variable.
	(init_fp_table): Simplify logic.
	(arm_const_double_rtx): Likewise.
	(fp_immediate_constant): Likewise.
	(fp_const_from_val): Likewise.
	(neg_const_double_rtx_ok_for_fpa): Delete.
	* doc/md.texi (ARM constraints): Update documentation.

From-SVN: r188662