2016-12-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	* simplify.c (gfc_convert_char_constant): Free result on error.

From-SVN: r243205

re PR c++/78649 (ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in build_value_init_noctor, at cp/init.c:380))

	PR c++/78649
	* pt.c (tsubst_init): Don't call build_value_init if decl's type
	is error_mark_node.

	* g++.dg/cpp0x/pr78649.C: New test.

From-SVN: r243204

	PR target/70322
	* config/i386/i386.md (*andndi3_doubleword): Add non-BMI alternative
	and corresponding post-reload splitter.

testsuite/ChangeLog:

	PR target/70322
	* gcc.target/i386/pr70322-2.c (dg-final): Remove xfail.

From-SVN: r243202

2016-12-02  Janus Weil  <janus@gcc.gnu.org>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78618
	* check.c (gfc_check_rank): Remove ATTRIBUTE_UNUSED.
	* expr.c (gfc_check_assign): Fix error propagation.

2016-12-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78618
	* gfortran.dg/char_conversion.f90: New test.

From-SVN: r243201

	* config/aarch64/aarch64.h (machine_function): Add
	reg_is_wrapped_separately field.
	* config/aarch64/aarch64.md (LAST_SAVED_REGNUM): Define new constant.
	* config/aarch64/aarch64.c (emit_set_insn): Change return type to
	rtx_insn *.
	(aarch64_save_callee_saves): Don't save registers that are wrapped
	separately.
	(aarch64_restore_callee_saves): Don't restore registers that are
	wrapped separately.
	(offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p,
	aarch64_offset_7bit_signed_scaled_p): Move earlier in the file.
	(aarch64_get_separate_components): New function.
	(aarch64_get_next_set_bit): Likewise.
	(aarch64_components_for_bb): Likewise.
	(aarch64_disqualify_components): Likewise.
	(aarch64_emit_prologue_components): Likewise.
	(aarch64_emit_epilogue_components): Likewise.
	(aarch64_set_handled_components): Likewise.
	(aarch64_process_components): Likewise.
	(TARGET_SHRINK_WRAP_GET_SEPARATE_COMPONENTS,
	TARGET_SHRINK_WRAP_COMPONENTS_FOR_BB,
	TARGET_SHRINK_WRAP_DISQUALIFY_COMPONENTS,
	TARGET_SHRINK_WRAP_EMIT_PROLOGUE_COMPONENTS,
	TARGET_SHRINK_WRAP_EMIT_EPILOGUE_COMPONENTS,
	TARGET_SHRINK_WRAP_SET_HANDLED_COMPONENTS): Define.

From-SVN: r243200

2016-12-02  Martin Jambor  <mjambor@suse.cz>

	* passes.def: Move pass_rebuild_cgraph_edges to the end of
	pass_build_ssa_passes.

From-SVN: r243199

	* config/alpha/alpha.md (exception_receiver): Copy
	alpha_gp_ave_rtx return value.

From-SVN: r243197

Makefile.in (PREPROCESSOR_DEFINES): Add a level of indirection for several include directories that may be relative...

	* Makefile.in (PREPROCESSOR_DEFINES): Add a level of indirection
	for several include directories that may be relative to sysroot.
	* config/i386/x-mingw32 (gplus_includedir): Define.
	(gplus_tool_includedir, gplus_backward_include_dir): Likewise.
	(native_system_includedir): Likewise.
	* config/i386/mingw32.h (STANDARD_STARTFILE_PREFIX_1): Do not
	override if TARGET_SYSTEM_ROOT is defined.
	(NATIVE_SYSTEM_HEADER_DIR): Likewise.

From-SVN: r243196

	PR target/70322
	* config/i386/i386.c (dimode_scalar_to_vector_candidate_p): Handle
	NOT.
	(dimode_scalar_chain::compute_convert_gain): Likewise.
	(dimode_scalar_chain::convert_insn): Likewise.
	* config/i386/i386.md (*one_cmpldi2_doubleword): New
	define_insn_and_split.
	(one_cmpl<mode>2): Use SWIM1248x iterator instead of SWIM.

	* gcc.target/i386/pr70322-1.c: New test.
	* gcc.target/i386/pr70322-2.c: New test.
	* gcc.target/i386/pr70322-3.c: New test.

From-SVN: r243195

re PR target/78614 (ICE error: invalid rtl sharing found in the insn (verify_rtx_sharing) gcc/emit-rtl.c:2743)

	PR target/78614
	* rtl.c (copy_rtx): Don't clear used flag here.
	(shallow_copy_rtx_stat): Clear used flag here unless code the rtx
	is shareable.
	* simplify-rtx.c (simplify_replace_fn_rtx): When copying rtx with
	'E' in format, copy all vectors.
	* emit-rtl.c (copy_insn_1): Don't clear used flag here.
	* valtrack.c (cleanup_auto_inc_dec): Likewise.
	* config/rs6000/rs6000.c (rs6000_frame_related): Likewise.

From-SVN: r243194

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm-builtins.c (arm_builtins): Define
	ARM_BUILTIN_CMSE_NONSECURE_CALLER.
	(bdesc_2arg): Add line for cmse_nonsecure_caller.
	(arm_init_builtins): Handle cmse_nonsecure_caller.
	(arm_expand_builtin): Likewise.
	* config/arm/arm_cmse.h (cmse_nonsecure_caller): New.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse-1.c: Add test for
	cmse_nonsecure_caller.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243193

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (detect_cmse_nonsecure_call): New.
	(cmse_nonsecure_call_clear_caller_saved): New.
	(arm_reorg): Use cmse_nonsecure_call_clear_caller_saved.
	(arm_function_ok_for_sibcall): Disable sibcalls for
	cmse_nonsecure_call.
	* config/arm/arm-protos.h (detect_cmse_nonsecure_call): New.
	* config/arm/arm.md (call): Handle cmse_nonsecure_entry.
	(call_value): Likewise.
	(nonsecure_call_internal): New.
	(nonsecure_call_value_internal): New.
	* config/arm/thumb1.md (*nonsecure_call_reg_thumb1_v5): New.
	(*nonsecure_call_value_reg_thumb1_v5): New.
	* config/arm/thumb2.md (*nonsecure_call_reg_thumb2): New.
	(*nonsecure_call_value_reg_thumb2): New.
	* config/arm/unspecs.md (UNSPEC_NONSECURE_MEM): New.

    libgcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	       Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/cmse_nonsecure_call.S: New.
	* config/arm/t-arm: Compile cmse_nonsecure_call.S

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse.exp: Run tests in mainline dir.
	* gcc.target/arm/cmse/cmse-9.c: Added some extra tests.
	* gcc.target/arm/cmse/cmse-14.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-4.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-5.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-6.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-7.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-8.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-9.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-and-union-1.c: New.
	* gcc.target/arm/cmse/baseline/cmse-11.c: New.
	* gcc.target/arm/cmse/baseline/cmse-13.c: New.
	* gcc.target/arm/cmse/baseline/cmse-6.c: New.
	* gcc.target/arm/cmse/baseline/union-1.c: New.
	* gcc.target/arm/cmse/baseline/union-2.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-4.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-5.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-6.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-7.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-8.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-9.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-and-union-1.c: New.
	* gcc.target/arm/cmse/mainline/union-1.c: New.
	* gcc.target/arm/cmse/mainline/union-2.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/softfp-sp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/softfp-sp/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-8.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243192

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (gimplify.h): New include.
	(arm_handle_cmse_nonsecure_call): New.
	(arm_attribute_table): Added cmse_nonsecure_call.
	(arm_comp_type_attributes): Deny compatibility of function types
	with without the cmse_nonsecure_call attribute.
	* doc/extend.texi (ARM ARMv8-M Security Extensions): New attribute.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse-3.c: Add tests.
	* gcc.target/arm/cmse/cmse-4.c: Add tests.
	* gcc.target/arm/cmse/cmse-15.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243191

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (output_return_instruction): Clear
	registers.
	(thumb2_expand_return): Likewise.
	(thumb1_expand_epilogue): Likewise.
	(thumb_exit): Likewise.
	(arm_expand_epilogue): Likewise.
	(cmse_nonsecure_entry_clear_before_return): New.
	(comp_not_to_clear_mask_str_un): New.
	(compute_not_to_clear_mask): New.
	* config/arm/thumb1.md (*epilogue_insns): Change length attribute.
	* config/arm/thumb2.md (*thumb2_return): Disable for
	cmse_nonsecure_entry functions.
	(*thumb2_cmse_entry_return): Duplicate thumb2_return pattern for
	cmse_nonsecure_entry functions.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse.exp: Test different multilibs separate.
	* gcc.target/arm/cmse/struct-1.c: New.
	* gcc.target/arm/cmse/bitfield-1.c: New.
	* gcc.target/arm/cmse/bitfield-2.c: New.
	* gcc.target/arm/cmse/bitfield-3.c: New.
	* gcc.target/arm/cmse/baseline/cmse-2.c: New.
	* gcc.target/arm/cmse/baseline/softfp.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-5.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-5.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-5.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-5.c: New.
	* gcc.target/arm/cmse/mainline/softfp-sp/cmse-5.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243190

return

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (use_return_insn): Change to return with  bxns
	when cmse_nonsecure_entry.
	(output_return_instruction): Likewise.
	(arm_output_function_prologue): Likewise.
	(thumb_pop): Likewise.
	(thumb_exit): Likewise.
	(thumb2_expand_return): Assert that entry functions always have simple
	returns.
	(arm_expand_epilogue): Handle entry functions.
	(arm_function_ok_for_sibcall): Disable sibcall for entry functions.
	(arm_asm_declare_function_name): New.
	* config/arm/arm-protos.h (arm_asm_declare_function_name): New.
	* config/arm/elf.h (ASM_DECLARE_FUNCTION_NAME): Redefine to
	use arm_asm_declare_function_name.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse-4.c: New.
	* gcc.target/arm/cmse/cmse-9.c: New.
	* gcc.target/arm/cmse/cmse-10.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243189

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (arm_handle_cmse_nonsecure_entry): New.
	(arm_attribute_table): Added cmse_nonsecure_entry
	(arm_compute_func_type): Handle cmse_nonsecure_entry.
	(cmse_func_args_or_return_in_stack): New.
	(arm_handle_cmse_nonsecure_entry): New.
	* config/arm/arm.h (ARM_FT_CMSE_ENTRY): New macro define.
	(IS_CMSE_ENTRY): Likewise.
	* doc/extend.texi (ARM ARMv8-M Security Extensions): New attribute.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse-3.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243188

    gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config.gcc (extra_headers): Added arm_cmse.h.
	* config/arm/arm-arches.def (ARM_ARCH):
	(armv8-m): Add FL2_CMSE.
	(armv8-m.main): Likewise.
	(armv8-m.main+dsp): Likewise.
	* config/arm/arm-c.c
	(arm_cpu_builtins): Added __ARM_FEATURE_CMSE macro.
	* config/arm/arm-flags.h: Define FL2_CMSE.
	* config/arm.c (arm_arch_cmse): New.
	(arm_option_override): New error for unsupported cmse target.
	* config/arm/arm.h (arm_arch_cmse): New.
	* config/arm/arm.opt (mcmse): New.
	* config/arm/arm_cmse.h: New file.
	* doc/invoke.texi (ARM Options): Add -mcmse.
	* doc/sourcebuild.texi (arm_cmse_ok): Add new effective target.
	* doc/extend.texi: Add ARMv8-M Security Extensions entry.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse.exp: New.
	* gcc.target/arm/cmse/cmse-1.c: New.
	* gcc.target/arm/cmse/cmse-12.c: New.
	* lib/target-supports.exp
	(check_effective_target_arm_cmse_ok): New.

    libgcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/t-arm (HAVE_CMSE): New.
	* config/arm/cmse.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243187

	* config/avr/avr.c: Fix coding rule glitches.

From-SVN: r243186

	gcc/c/
	* c-parser.c (c_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA,
	EXIT_DATA,WAIT} are not used in compound statements.
	(c_parser_oacc_enter_exit_data): Update diagnostics.

	gcc/cp/
	* parser.c (cp_parser_oacc_enter_exit_data): Update diagnostics.
	(cp_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA,
	EXIT_DATA,WAIT} are not used in compound statements.

	gcc/testsuite/
	* c-c++-common/goacc/data-2.c: Adjust test.
	* c-c++-common/goacc/executeables-1.c: New test.
	* g++.dg/goacc/data-1.C: Adjust test.


Co-Authored-By: James Norris <jnorris@codesourcery.com>

From-SVN: r243185

2016-12-09  Martin Jambor  <mjambor@suse.cz>

	* hsa.c (hsa_callable_function_p): Return false for artificial
	functions.

From-SVN: r243184

gcc/

	PR rtl-optimization/78561
	* varasm.c (recompute_pool_offsets): New.
	(output_constant_pool): Call it.

gcc/testsuite/

	PR rtl-optimization/78561
	* gcc.target/aarch64/pr78561.c: New.

From-SVN: r243183

gcc/

	PR rtl-optimization/78561
	* config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p) Rename
	get_pool_size to get_pool_size_upper_bound.
	(rs6000_stack_info): Likewise.
	(rs6000_emit_prologue): Likewise.
	(rs6000_elf_declare_function_name): Likewise.
	(rs6000_set_up_by_prologue): Likewise.
	(rs6000_can_eliminate): Likewise, reformat spaces to tabs.
	* output.h (get_pool_size): Rename to...
	(get_pool_size_upper_bound): ...This.
	* varasm.c (get_pool_size): Rename to...
	(get_pool_size_upper_bound): ...This.

From-SVN: r243182

libgomp/

	* libgomp/config/rtems/pool.h (gomp_thread_pool_reservoir): Use
	pthread_spinlock_t instead of gomp_mutex_t lock.
	(gomp_get_thread_pool): Likewise.
	(gomp_release_thread_pool): Likewise.
	* libgomp/config/rtems/proc.c (allocate_thread_pool_reservoir):
	Likewise.

From-SVN: r243181

	* match.pd: Add new pattern:
	(cond (cmp (convert? x) c1) (op x c2) c3) -> (op (minmax x c1) c2).
	gcc/testsuite
	* gcc.dg/fold-bopcond-1.c: New test.
	* gcc.dg/fold-bopcond-2.c: New test.

From-SVN: r243180

libgomp/

        * config/rtems/pool.h (gomp_get_thread_pool): Return proper
        thread pool in case nthreads == 1.

From-SVN: r243179

call.c (add_function_candidate): Also exclude inherited ctors that take a type reference-related to the derived...

	* call.c (add_function_candidate): Also exclude inherited ctors
	that take a type reference-related to the derived class.

From-SVN: r243178

	* diagnostic.c (diagnostic_report_diagnostic): Remove extraneous
	braces.

From-SVN: r243177

Adding a " in the scan-assembler pattern is necessary because of a
recent change in print-rtl.c.

gcc/testsuite/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* gcc.target/s390/md/setmem_long-1.c: Fix test.

From-SVN: r243176

	PR middle-end/78328
	* gimple-ssa-warn-alloca.c (alloca_call_type): Handle
	VR_ANTI_RANGE.

From-SVN: r243174

gcc/ChangeLog:

2016-12-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_save_gprs_to_fprs): Fix RTL sharing
	problem.

From-SVN: r243173

	* config/avr/avr-arch.h (avr_mcu_t) [n_flash]: Remove field.
	* config/avr/avr-devices.c (AVR_MCU): Remove N_FLASH macro argument.
	* config/avr/avr-mcus.def (AVR_MCU): Remove initializer for n_flash.
	* config/avr/avr.c (avr_set_core_architecture) [avr_n_flash]: Use
	avr_mcu_types.flash_size to compute default value.
	* config/avr/gen-avr-mmcu-specs.c (print_mcu) [cc1_n_flash]: Use
	mcu->flash_size to compute value for spec.

From-SVN: r243171

	* doc/invoke.texi (AVR Options) [-mabsdata]: Point to absdata.
	* doc/extend.texi (AVR Variable Attributes) [progmem]: Hint
	about linker description to avoid progmem altogether.
	[absdata]: Point to -mabsdata option.

From-SVN: r243170

re PR rtl-optimization/78547 (ICE: in loc_cmp, at var-tracking.c:3417 with -Os -g -mstringop-strategy=libcall -freorder-blocks-algorithm=simple)

	PR rtl-optimization/78547
	* emit-rtl.c (unshare_all_rtl): Make sure DECL_RTL and
	DECL_INCOMING_RTL is not shared.
	* config/i386/i386.c (convert_scalars_to_vectors): If any
	insns have been converted, adjust all parameter's DEC_RTL and
	DECL_INCOMING_RTL back from V1TImode to TImode if the parameters have
	TImode.

	* gcc.dg/pr78547.c: New test.

From-SVN: r243165

	PR rtl-optimization/78575
	* config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses): Use
	DF infrastructure to wrap all V1TImode reg uses into TImode subreg
	if not already wrapped in a subreg.  Make sure df_insn_rescan does not
	affect further iterations.

	* gcc.dg/pr78575.c: New test.

From-SVN: r243164

	PR ipa/78555
	* sreal.c (sreal::to_int): Make absolute value before shifting.
	(sreal::operator/): Likewise.
	(sreal_verify_negative_division): New test.
	(void sreal_c_tests): Call the new test.
	* sreal.h (sreal::normalize_up): Use new SREAL_ABS and
	SREAL_SIGN macros.
	(sreal::normalize_down): Likewise.

From-SVN: r243163

combine_simplify_rtx() tries to replace rtx expressions with just two
possible values with an experession that uses if_then_else:

  (if_then_else (condition) (value1) (value2))

If the original expression is e.g.

  (and (reg) (const_int 2))

where the constant is the mask for a single bit, the replacement results
in a more complex expression than before:

  (if_then_else (ne (zero_extract (reg) (1) (31))) (2) (0))

Similar replacements are done for

  (signextend (and ...))
  (zeroextend (and ...))

Suppress the replacement this special case in if_then_else_cond().

gcc/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* combine.c (combine_simplify_rtx):  Suppress replacement of
	"(and (reg) (const_int bit))" with "if_then_else".

From-SVN: r243162

gcc/testsuite/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* gcc.target/s390/litpool-r3-1.c: Fix label number test.

From-SVN: r243161

With some undefined code, combine generates patterns where the arguments to
*_extract are out of range, e.b. a negative bit position.  If the s390 backend
accepts these, they lead to not just undefined behaviour but invalid assembly
instructions (argument out of the allowed range).  So this patch makes sure
that the rtl expressions with out of range arguments are rejected.

gcc/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR target/77822
	* config/s390/s390.md ("extzv")
	("*extzv<mode><clobbercc_or_nocc>")
	("*extzvdi<clobbercc_or_nocc>_lshiftrt")
	("*<risbg_n>_ior_and_sr_ze")
	("*extract1bitdi<clobbercc_or_nocc>")
	("*insv<mode><clobbercc_or_nocc>", "*insv_rnsbg_noshift")
	("*insv_rnsbg_srl", "*insv<mode>_mem_reg")
	("*insvdi_mem_reghigh", "*insvdi_reg_imm"): Use EXTRACT_ARGS_IN_RANGE
	to validate the arguments of zero_extract and sign_extract.

gcc/testsuite/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR target/77822
	* gcc.target/s390/s390.exp: Support .C tests.
	* gcc.target/s390/pr77822-2.c: New test.
	* gcc.target/s390/pr77822-1.C: New test.

From-SVN: r243160

The macro can be used to validate the arguments of zero_extract and
sign_extract to fix this problem:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77822

gcc/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR target/77822
	* rtl.h (EXTRACT_ARGS_IN_RANGE): New.

From-SVN: r243159

Define the vectorization_cost hook.  The only change right now
compared to the default implementation is the reduced costs for
unaligned loads/stores.  This is supposed to prevent unnecessary loop
peeling performed to reach better alignments.

Further tuning of this hook is required.

-Andreas-

gcc/ChangeLog:

2016-12-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc/config/s390/s390.c (s390_builtin_vectorization_cost): New
	function.
	(TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST): Define target
	macro.

gcc/testsuite/ChangeLog:

2016-12-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vector/vec-nopeel-1.c: New test.

From-SVN: r243158