aboutsummaryrefslogtreecommitdiff
path: root/gcc/simplify-rtx.c
AgeCommit message (Collapse)AuthorFilesLines
2017-09-19Fix typo in simplify_binary_operation_1Segher Boessenkool1-1/+1
* simplify-rtx.c (simplify_binary_operation_1): Fix typo in comment. From-SVN: r252979
2017-09-04Add subreg_memory_offset helper functionsRichard Sandiford1-50/+14
This patch adds routines for converting a SUBREG_BYTE offset into a memory address offset. The two only differ for paradoxical subregs, where SUBREG_BYTE is always 0 but the memory address offset can be negative. 2017-09-04 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * rtl.h (subreg_memory_offset): Declare. * emit-rtl.c (subreg_memory_offset): New function. * expmed.c (store_bit_field_1): Use it. * expr.c (undefined_operand_subword_p): Likewise. * simplify-rtx.c (simplify_subreg): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251644
2017-08-30Add a partial_subreg_p predicateRichard Sandiford1-5/+2
This patch adds a partial_subreg_p predicate to go alongside paradoxical_subreg_p. Like the paradoxical_subreg_p patch, this one replaces some tests that were based on GET_MODE_SIZE rather than GET_MODE_PRECISION. In each case the change should be a no-op or an improvement. The regcprop.c patch prevents some replacements of the 82-bit RFmode with the 80-bit XFmode on ia64. I don't understand the target details here particularly well, but from the way the modes are described in ia64-modes.def, it isn't valid to assume that an XFmode can carry an RFmode payload. A comparison of the testsuite assembly output for one target per CPU showed no other differences. Some of the places changed here are tracking the widest access mode found for a register. The series tries to standardise on: if (partial_subreg_p (widest_seen, new_mode)) widest_seen = new_mode; rather than: if (paradoxical_subreg_p (new_mode, widest_seen)) widest_seen = new_mode; Either would have been OK. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * rtl.h (partial_subreg_p): New function. * caller-save.c (save_call_clobbered_regs): Use it. * calls.c (expand_call): Likewise. * combine.c (combinable_i3pat): Likewise. (simplify_set): Likewise. (make_extraction): Likewise. (make_compound_operation_int): Likewise. (gen_lowpart_or_truncate): Likewise. (force_to_mode): Likewise. (make_field_assignment): Likewise. (reg_truncated_to_mode): Likewise. (record_truncated_value): Likewise. (move_deaths): Likewise. * cse.c (record_jump_cond): Likewise. (cse_insn): Likewise. * cselib.c (cselib_lookup_1): Likewise. * expmed.c (extract_bit_field_using_extv): Likewise. * function.c (assign_parm_setup_reg): Likewise. * ifcvt.c (noce_convert_multiple_sets): Likewise. * ira-build.c (create_insn_allocnos): Likewise. * lra-coalesce.c (merge_pseudos): Likewise. * lra-constraints.c (match_reload): Likewise. (simplify_operand_subreg): Likewise. (curr_insn_transform): Likewise. * lra-lives.c (process_bb_lives): Likewise. * lra.c (new_insn_reg): Likewise. (lra_substitute_pseudo): Likewise. * regcprop.c (mode_change_ok): Likewise. (maybe_mode_change): Likewise. (copyprop_hardreg_forward_1): Likewise. * reload.c (push_reload): Likewise. (find_reloads): Likewise. (find_reloads_subreg_address): Likewise. * reload1.c (alter_reg): Likewise. (eliminate_regs_1): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251536
2017-08-30[66/77] Use scalar_mode for constant integersRichard Sandiford1-1/+1
This patch treats the mode associated with an integer constant as a scalar_mode. We can't use the more natural-sounding scalar_int_mode because we also use (const_int 0) for bounds-checking modes. (It might be worth adding a bounds-specific code instead, but that's for another day.) This exposes a latent bug in simplify_immed_subreg, which for vectors of CONST_WIDE_INTs would pass the vector mode rather than the element mode to rtx_mode_t. I think the: /* We can get a 0 for an error mark. */ || GET_MODE_CLASS (mode) == MODE_VECTOR_INT || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT in immed_double_const is dead. trunc_int_mode (via gen_int_mode) would go on to ICE if the mode fitted in a HWI, and surely plenty of other code would be confused to see a const_int be interpreted as a vector. We should instead be using CONST0_RTX (mode) if we need a safe constant for a particular mode. We didn't try to make these functions take scalar_mode arguments because in many cases that would be too invasive at this stage. Maybe it would become feasible in future. Also, the long-term direction should probably be to add modes to constant integers rather than have then as VOIDmode odd-ones-out. That would remove the need for rtx_mode_t and thus remove the question whether they should use scalar_int_mode, scalar_mode or machine_mode. The patch also uses scalar_mode for the CONST_DOUBLE handling in loc_descriptor. In that case the mode can legitimately be either floating-point or integral. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * emit-rtl.c (immed_double_const): Use is_a <scalar_mode> instead of separate mode class checks. Do not allow vector modes here. (immed_wide_int_const): Use as_a <scalar_mode>. * explow.c (trunc_int_for_mode): Likewise. * rtl.h (wi::int_traits<rtx_mode_t>::get_precision): Likewise. (wi::shwi): Likewise. (wi::min_value): Likewise. (wi::max_value): Likewise. * dwarf2out.c (loc_descriptor): Likewise. * simplify-rtx.c (simplify_immed_subreg): Fix rtx_mode_t argument for CONST_WIDE_INT. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251517
2017-08-30[64/77] Add a scalar_mode classRichard Sandiford1-1/+1
This patch adds a scalar_mode class that can hold any scalar mode, specifically: - scalar integers - scalar floating-point values - scalar fractional modes - scalar accumulator modes - pointer bounds modes To start with this patch uses this type for GET_MODE_INNER. Later patches add more uses. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * coretypes.h (scalar_mode): New class. * machmode.h (scalar_mode): Likewise. (scalar_mode::includes_p): New function. (mode_to_inner): Return a scalar_mode rather than a machine_mode. * gdbhooks.py (build_pretty_printers): Handle scalar_mode. * genmodes.c (get_mode_class): Handle remaining scalar modes. * cfgexpand.c (expand_debug_expr): Use scalar_mode. * expmed.c (store_bit_field_1): Likewise. (extract_bit_field_1): Likewise. * expr.c (write_complex_part): Likewise. (read_complex_part): Likewise. (emit_move_complex_push): Likewise. (expand_expr_real_2): Likewise. * function.c (assign_parm_setup_reg): Likewise. (assign_parms_unsplit_complex): Likewise. * optabs.c (expand_binop): Likewise. * rtlanal.c (subreg_get_info): Likewise. * simplify-rtx.c (simplify_immed_subreg): Likewise. * varasm.c (output_constant_pool_2): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251515
2017-08-30[55/77] Use scalar_int_mode in simplify_const_unary_operationRichard Sandiford1-16/+19
The main scalar integer block in simplify_const_unary_operation had the condition: if (CONST_SCALAR_INT_P (op) && width > 0) where "width > 0" was a roundabout way of testing != VOIDmode. This patch replaces it with a check for a scalar_int_mode instead. It also uses the number of bits in the input rather than the output mode to determine the result of a "count ... bits in zero" operation. (At the momemnt these modes have to be the same, but it still seems conceptually wrong to use the number of bits in the output mode.) The handling of float->integer ops also checked "width > 0", but this was redundant with the earlier check for MODE_INT. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * simplify-rtx.c (simplify_const_unary_operation): Use is_a <scalar_int_mode> instead of checking for a nonzero precision. Forcibly convert op_mode to a scalar_int_mode in that case. More clearly differentiate the operand and result modes and use the former when deciding what the value of a count-bits operation should be. Use is_int_mode instead of checking for a MODE_INT. Remove redundant check for whether this mode has a zero precision. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251507
2017-08-30[35/77] Add uses of as_a <scalar_int_mode>Richard Sandiford1-18/+21
This patch adds asserting as_a <scalar_int_mode> conversions to contexts in which the input is known to be a scalar integer mode. In expand_divmod, op1 is always a scalar_int_mode if op1_is_constant (but might not be otherwise). In expand_binop, the patch reverses a < comparison in order to avoid splitting a long line. gcc/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * cfgexpand.c (convert_debug_memory_address): Use as_a <scalar_int_mode>. * combine.c (expand_compound_operation): Likewise. (make_extraction): Likewise. (change_zero_ext): Likewise. (simplify_comparison): Likewise. * cse.c (cse_insn): Likewise. * dwarf2out.c (minmax_loc_descriptor): Likewise. (mem_loc_descriptor): Likewise. (loc_descriptor): Likewise. * expmed.c (init_expmed_one_mode): Likewise. (synth_mult): Likewise. (emit_store_flag_1): Likewise. (expand_divmod): Likewise. Use HWI_COMPUTABLE_MODE_P instead of a comparison with size. * expr.c (expand_assignment): Use as_a <scalar_int_mode>. (reduce_to_bit_field_precision): Likewise. * function.c (expand_function_end): Likewise. * internal-fn.c (expand_arith_overflow_result_store): Likewise. * loop-doloop.c (doloop_modify): Likewise. * optabs.c (expand_binop): Likewise. (expand_unop): Likewise. (expand_copysign_absneg): Likewise. (prepare_cmp_insn): Likewise. (maybe_legitimize_operand): Likewise. * recog.c (const_scalar_int_operand): Likewise. * rtlanal.c (get_address_mode): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. (simplify_cond_clz_ctz): Likewise. * tree-nested.c (get_nl_goto_field): Likewise. * tree.c (build_vector_type_for_mode): Likewise. * var-tracking.c (use_narrower_mode): Likewise. gcc/c-family/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * c-common.c (c_common_type_for_mode): Use as_a <scalar_int_mode>. gcc/lto/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * lto-lang.c (lto_type_for_mode): Use as_a <scalar_int_mode>. From-SVN: r251487
2017-08-30[28/77] Use is_a <scalar_int_mode> for miscellaneous types of testRichard Sandiford1-26/+31
This patch adds is_a <scalar_int_mode> checks to various places that were explicitly or implicitly restricted to integers already, in cases where adding an explicit is_a <scalar_int_mode> is useful for later patches. In simplify_if_then_else, the: GET_MODE (XEXP (XEXP (t, 0), N)) expressions were equivalent to: GET_MODE (XEXP (t, 0)) due to the type of operation. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * combine.c (sign_extend_short_imm): Add is_a <scalar_int_mode> checks. (try_combine): Likewise. (simplify_if_then_else): Likewise. * cse.c (cse_insn): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. * emit-rtl.c (gen_lowpart_common): Likewise. * simplify-rtx.c (simplify_truncation): Likewise. (simplify_binary_operation_1): Likewise. (simplify_const_relational_operation): Likewise. (simplify_ternary_operation): Likewise. * tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251480
2017-08-30[26/77] Use is_a <scalar_int_mode> in subreg/extract simplificationsRichard Sandiford1-19/+19
This patch adds is_a <scalar_int_mode> checks to various places that were optimising subregs or extractions in ways that only made sense for scalar integers. Often the subreg transformations were looking for extends, truncates or shifts and trying to remove the subreg, which wouldn't be correct if the SUBREG_REG was a vector rather than a scalar. The simplify_binary_operation_1 part also removes a redundant: GET_MODE (opleft) == GET_MODE (XEXP (opright, 0)) since this must be true for: (ior A (lshifrt B ...)) A == opleft, B == XEXP (opright, 0) 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * combine.c (find_split_point): Add is_a <scalar_int_mode> checks. (make_compound_operation_int): Likewise. (change_zero_ext): Likewise. * expr.c (convert_move): Likewise. (convert_modes): Likewise. * fwprop.c (forward_propagate_subreg): Likewise. * loop-iv.c (get_biv_step_1): Likewise. * optabs.c (widen_operand): Likewise. * postreload.c (move2add_valid_value_p): Likewise. * recog.c (simplify_while_replacing): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. (simplify_binary_operation_1): Likewise. Remove redundant mode equality check. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251478
2017-08-30[25/77] Use is_a <scalar_int_mode> for bitmask optimisationsRichard Sandiford1-8/+14
Explicitly check for scalar_int_mode in code that maps arithmetic to full-mode bit operations. These operations wouldn't work correctly for vector modes, for example. In many cases this is enforced also by checking whether an operand is CONST_INT_P, but there were other cases where the condition is more indirect. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * combine.c (combine_simplify_rtx): Add checks for is_a <scalar_int_mode>. (simplify_if_then_else): Likewise. (make_field_assignment): Likewise. (simplify_comparison): Likewise. * ifcvt.c (noce_try_bitop): Likewise. * loop-invariant.c (canonicalize_address_mult): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251477
2017-08-30[23/77] Replace != VOIDmode checks with is_a <scalar_int_mode>Richard Sandiford1-7/+7
This patch replaces some checks against VOIDmode with checks of is_a <scalar_int_mode>, in cases where scalar integer modes were the only useful alternatives left. gcc/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * cfgexpand.c (expand_debug_expr): Use is_a <scalar_int_mode> instead of != VOIDmode. * combine.c (if_then_else_cond): Likewise. (change_zero_ext): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. (loc_descriptor): Likewise. * rtlanal.c (canonicalize_condition): Likewise. * simplify-rtx.c (simplify_relational_operation_1): Likewise. From-SVN: r251475
2017-08-30[22/77] Replace !VECTOR_MODE_P with is_a <scalar_int_mode>Richard Sandiford1-11/+8
This patch replaces some checks of !VECTOR_MODE_P with checks of is_a <scalar_int_mode>, in cases where the scalar integer modes were the only useful alternatives left. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * simplify-rtx.c (simplify_binary_operation_1): Use is_a <scalar_int_mode> instead of !VECTOR_MODE_P. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251474
2017-08-30[21/77] Replace SCALAR_INT_MODE_P checks with is_a <scalar_int_mode>Richard Sandiford1-65/+70
This patch replaces checks of "SCALAR_INT_MODE_P (...)" with "is_a <scalar_int_mode> (..., &var)" in cases where it becomes useful to refer to the mode as a scalar_int_mode. It also replaces some checks for the two constituent classes (MODE_INT and MODE_PARTIAL_INT). The patch also introduces is_a <scalar_int_mode> checks for some uses of HWI_COMPUTABLE_MODE_P, which is a subcondition of SCALAR_INT_MODE_P. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * wide-int.h (int_traits<unsigned char>) New class. (int_traits<unsigned short>) Likewise. * cfgexpand.c (expand_debug_expr): Use is_a <scalar_int_mode>. Use GET_MODE_UNIT_PRECISION and remove redundant test for SCALAR_INT_MODE_P. * combine.c (set_nonzero_bits_and_sign_copies): Use is_a <scalar_int_mode>. (find_split_point): Likewise. (combine_simplify_rtx): Likewise. (simplify_logical): Likewise. (expand_compound_operation): Likewise. (expand_field_assignment): Likewise. (make_compound_operation): Likewise. (extended_count): Likewise. (change_zero_ext): Likewise. (simplify_comparison): Likewise. * dwarf2out.c (scompare_loc_descriptor): Likewise. (ucompare_loc_descriptor): Likewise. (minmax_loc_descriptor): Likewise. (mem_loc_descriptor): Likewise. (loc_descriptor): Likewise. * expmed.c (init_expmed_one_mode): Likewise. * lra-constraints.c (lra_constraint_offset): Likewise. * optabs.c (prepare_libcall_arg): Likewise. * postreload.c (move2add_note_store): Likewise. * reload.c (operands_match_p): Likewise. * rtl.h (load_extend_op): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * simplify-rtx.c (simplify_truncation): Likewise. (simplify_unary_operation_1): Likewise. (simplify_binary_operation_1): Likewise. (simplify_const_binary_operation): Likewise. (simplify_const_relational_operation): Likewise. (simplify_subreg): Likewise. * stor-layout.c (bitwise_mode_for_mode): Likewise. * var-tracking.c (adjust_mems): Likewise. (prepare_call_arguments): Likewise. gcc/ada/ * gcc-interface/decl.c (check_ok_for_atomic_type): Use is_a <scalar_int_mode>. * gcc-interface/trans.c (Pragma_to_gnu): Likewise. * gcc-interface/utils.c (gnat_type_for_mode): Likewise. gcc/fortran/ * trans-types.c (gfc_type_for_mode): Use is_a <scalar_int_mode>. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251473
2017-08-30[20/77] Replace MODE_INT checks with is_int_modeRichard Sandiford1-14/+19
Replace checks of "GET_MODE_CLASS (...) == MODE_INT" with "is_int_mode (..., &var)", in cases where it becomes useful to refer to the mode as a scalar_int_mode. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * machmode.h (is_int_mode): New fuction. * combine.c (find_split_point): Use it. (combine_simplify_rtx): Likewise. (simplify_if_then_else): Likewise. (simplify_set): Likewise. (simplify_shift_const_1): Likewise. (simplify_comparison): Likewise. * config/aarch64/aarch64.c (aarch64_rtx_costs): Likewise. * cse.c (notreg_cost): Likewise. (cse_insn): Likewise. * cselib.c (cselib_lookup_1): Likewise. * dojump.c (do_jump_1): Likewise. (do_compare_rtx_and_jump): Likewise. * dse.c (get_call_args): Likewise. * dwarf2out.c (rtl_for_decl_init): Likewise. (native_encode_initializer): Likewise. * expmed.c (emit_store_flag_1): Likewise. (emit_store_flag): Likewise. * expr.c (convert_modes): Likewise. (store_field): Likewise. (expand_expr_real_1): Likewise. * fold-const.c (fold_read_from_constant_string): Likewise. * gimple-ssa-sprintf.c (get_format_string): Likewise. * optabs-libfuncs.c (gen_int_libfunc): Likewise. * optabs.c (expand_binop): Likewise. (expand_unop): Likewise. (expand_abs_nojump): Likewise. (expand_one_cmpl_abs_nojump): Likewise. * simplify-rtx.c (mode_signbit_p): Likewise. (val_signbit_p): Likewise. (val_signbit_known_set_p): Likewise. (val_signbit_known_clear_p): Likewise. (simplify_relational_operation_1): Likewise. * tree.c (vector_type_mode): Likewise. gcc/go/ * go-lang.c (go_langhook_type_for_mode): Use is_int_mode. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251472
2017-08-30[17/77] Add an int_mode_for_size helper functionRichard Sandiford1-8/+6
This patch adds a wrapper around mode_for_size for cases in which the mode class is MODE_INT (the commonest case). The return type can then be an opt_scalar_int_mode instead of a machine_mode. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * machmode.h (int_mode_for_size): New function. * builtins.c (set_builtin_user_assembler_name): Use int_mode_for_size instead of mode_for_size. * calls.c (save_fixed_argument_area): Likewise. Make use of BLKmode explicit. * combine.c (expand_field_assignment): Use int_mode_for_size instead of mode_for_size. (make_extraction): Likewise. (simplify_shift_const_1): Likewise. (simplify_comparison): Likewise. * dojump.c (do_jump): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. * emit-rtl.c (init_derived_machine_modes): Likewise. * expmed.c (flip_storage_order): Likewise. (convert_extracted_bit_field): Likewise. * expr.c (copy_blkmode_from_reg): Likewise. * graphite-isl-ast-to-gimple.c (max_mode_int_precision): Likewise. * internal-fn.c (expand_mul_overflow): Likewise. * lower-subreg.c (simple_move): Likewise. * optabs-libfuncs.c (init_optabs): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. * tree.c (vector_type_mode): Likewise. * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise. * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Likewise. * tree-vect-generic.c (expand_vector_parallel): Likewise. * tree-vect-stmts.c (vectorizable_load): Likewise. (vectorizable_store): Likewise. gcc/ada/ * gcc-interface/decl.c (gnat_to_gnu_entity): Use int_mode_for_size instead of mode_for_size. (gnat_to_gnu_subprog_type): Likewise. * gcc-interface/utils.c (make_type_from_size): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251469
2017-08-30[7/77] Add scalar_float_modeRichard Sandiford1-2/+4
This patch adds a scalar_float_mode class, which wraps a mode enum that is known to satisfy SCALAR_FLOAT_MODE_P. Things like "SFmode" now give a scalar_float_mode object instead of a machine_mode. This in turn needs a change to the real.h format_helper, so that it can accept both machine_modes and scalar_float_modes. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * coretypes.h (scalar_float_mode): New type. * machmode.h (mode_traits::from_int): Use machine_mode if USE_ENUM_MODES is defined. (is_a): New function. (as_a): Likewise. (dyn_cast): Likewise. (scalar_float_mode): New class. (scalar_float_mode::includes_p): New function. (is_float_mode): Likewise. * gdbhooks.py (MachineModePrinter): New class. (build_pretty_printer): Use it for scalar_float_mode. * real.h (FLOAT_MODE_FORMAT): Use as_a <scalar_float_mode>. (format_helper::format_helper): Turn into a template. * genmodes.c (get_mode_class): New function. (emit_insn_modes_h): Give modes the class returned by get_mode_class, or machine_mode if none. * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Use as_a <scalar_float_mode>. * dwarf2out.c (mem_loc_descriptor): Likewise. (insert_float): Likewise. (add_const_value_attribute): Likewise. * simplify-rtx.c (simplify_immed_subreg): Likewise. * optabs.c (expand_absneg_bit): Take a scalar_float_mode. (expand_unop): Update accordingly. (expand_abs_nojump): Likewise. (expand_copysign_absneg): Take a scalar_float_mode. (expand_copysign_bit): Likewise. (expand_copysign): Update accordingly. gcc/ada/ * gcc-interface/utils.c (gnat_type_for_mode): Use is_a <scalar_float_mode> instead of SCALAR_FLOAT_MODE_P. gcc/go/ * go-lang.c (go_langhook_type_for_mode): Use is_float_mode. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251458
2017-08-22Make more use of paradoxical_subreg_pRichard Sandiford1-3/+3
This patch makes more use of the existing paradoxical_subreg_p predicate and also adds a version that operates on outer and inner modes. Some of the affected tests were based on GET_MODE_SIZE rather than GET_MODE_PRECISION and so the patch could change the result for modes that have the same size but different precisions. I think in each case the change should be a no-op or more correct, since a mode with precision N bits can't be expected to hold all of a mode with precision M>N bits. The patch changes the branch taken in simplify_subreg for modes with equal precision, but the new form matches the commentary more closely. Both branches should be equally good in that situation. 2017-08-22 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * rtl.h (paradoxical_subreg_p): Define inline, and add a version that takes the outer and inner modes. * doc/rtl.texi: Use paradoxical_subreg_p instead of a GET_MODE_SIZE comparison as the canonical test for a paradoxical subreg. * combine.c (simplify_set): Use paradoxical_subreg_p. (make_extraction): Likewise. (force_to_mode): Likewise. (rtx_equal_for_field_assignment_p): Likewise. (gen_lowpart_for_combine): Likewise. (simplify_comparison): Likewise. * cse.c (equiv_constant): Likewise. * expmed.c (store_bit_field_1): Likewise. * final.c (alter_subreg): Likewise. * fwprop.c (propagate_rtx): Likewise. (forward_propagate_subreg): Likewise. * ira-conflicts.c (ira_build_conflicts): Likewise. * lower-subreg.c (simplify_gen_subreg_concatn): Likewise. * lra-constraints.c (curr_insn_transform): Likewise. (split_reg): Likewise. * lra-eliminations.c (move_plus_up): Likewise. (lra_eliminate_regs_1): Likewise. * recog.c (general_operand): Likewise. * ree.c (combine_reaching_defs): Likewise. * reload.c (push_reload): Likewise. (find_reloads): Likewise. * reload1.c (elimination_effects): Likewise. (compute_reload_subreg_offset): Likewise. (choose_reload_regs): Likewise. * rtlanal.c (subreg_lsb_1): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. (simplify_subreg): Likewise. * var-tracking.c (track_loc_p): Likewise. * emit-rtl.c (byte_lowpart_offset): Likewise. (paradoxical_subreg_p): Delete out-of-line definition. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251282
2017-07-19simplify-rtx: The truncation of an IOR can have all bits set (PR81423)Segher Boessenkool1-0/+9
... if it is an IOR with a constant with all bits set in the mode that is truncated to, for example. Handle that case. PR rtl-optimization/81423 * simplify-rtx.c (simplify_truncation): Handle truncating an IOR with a constant that is -1 in the truncated to mode. From-SVN: r250363
2017-07-05Remove enum before machine_modeRichard Sandiford1-1/+1
r216834 did a mass removal of "enum" before "machine_mode". This patch removes some new uses that have been added since then. 2017-07-05 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * combine.c (simplify_if_then_else): Remove "enum" before "machine_mode". * compare-elim.c (can_eliminate_compare): Likewise. * config/aarch64/aarch64-builtins.c (aarch64_simd_builtin_std_type): Likewise. (aarch64_lookup_simd_builtin_type): Likewise. (aarch64_simd_builtin_type): Likewise. (aarch64_init_simd_builtin_types): Likewise. (aarch64_simd_expand_args): Likewise. * config/aarch64/aarch64-protos.h (aarch64_simd_attr_length_rglist): Likewise. (aarch64_reverse_mask): Likewise. (aarch64_simd_emit_reg_reg_move): Likewise. (aarch64_gen_adjusted_ldpstp): Likewise. (aarch64_ccmp_mode_to_code): Likewise. (aarch64_operands_ok_for_ldpstp): Likewise. (aarch64_operands_adjust_ok_for_ldpstp): Likewise. * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class): Likewise. (aarch64_min_divisions_for_recip_mul): Likewise. (aarch64_reassociation_width): Likewise. (aarch64_get_condition_code_1): Likewise. (aarch64_simd_emit_reg_reg_move): Likewise. (aarch64_simd_attr_length_rglist): Likewise. (aarch64_reverse_mask): Likewise. (aarch64_operands_ok_for_ldpstp): Likewise. (aarch64_operands_adjust_ok_for_ldpstp): Likewise. (aarch64_gen_adjusted_ldpstp): Likewise. * config/aarch64/cortex-a57-fma-steering.c (fma_node::rename): Likewise. * config/arc/arc.c (legitimate_offset_address_p): Likewise. * config/arm/arm-builtins.c (arm_simd_builtin_std_type): Likewise. (arm_lookup_simd_builtin_type): Likewise. (arm_simd_builtin_type): Likewise. (arm_init_simd_builtin_types): Likewise. (arm_expand_builtin_args): Likewise. * config/arm/arm-protos.h (arm_expand_builtin): Likewise. * config/ft32/ft32.c (ft32_libcall_value): Likewise. (ft32_setup_incoming_varargs): Likewise. (ft32_function_arg): Likewise. (ft32_function_arg_advance): Likewise. (ft32_pass_by_reference): Likewise. (ft32_arg_partial_bytes): Likewise. (ft32_valid_pointer_mode): Likewise. (ft32_addr_space_pointer_mode): Likewise. (ft32_addr_space_legitimate_address_p): Likewise. * config/i386/i386-protos.h (ix86_operands_ok_for_move_multiple): Likewise. * config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise. (ix86_emit_outlined_ms2sysv_restore): Likewise. (iamcu_alignment): Likewise. (canonicalize_vector_int_perm): Likewise. (ix86_noce_conversion_profitable_p): Likewise. (ix86_mpx_bound_mode): Likewise. (ix86_operands_ok_for_move_multiple): Likewise. * config/microblaze/microblaze-protos.h (microblaze_expand_conditional_branch_reg): Likewise. * config/microblaze/microblaze.c (microblaze_expand_conditional_branch_reg): Likewise. * config/powerpcspe/powerpcspe.c (rs6000_init_hard_regno_mode_ok): Likewise. (rs6000_reassociation_width): Likewise. (rs6000_invalid_binary_op): Likewise. (fusion_p9_p): Likewise. (emit_fusion_p9_load): Likewise. (emit_fusion_p9_store): Likewise. * config/riscv/riscv-protos.h (riscv_regno_mode_ok_for_base_p): Likewise. (riscv_hard_regno_mode_ok_p): Likewise. (riscv_address_insns): Likewise. (riscv_split_symbol): Likewise. (riscv_legitimize_move): Likewise. (riscv_function_value): Likewise. (riscv_hard_regno_nregs): Likewise. (riscv_expand_builtin): Likewise. * config/riscv/riscv.c (riscv_build_integer_1): Likewise. (riscv_build_integer): Likewise. (riscv_split_integer): Likewise. (riscv_legitimate_constant_p): Likewise. (riscv_cannot_force_const_mem): Likewise. (riscv_regno_mode_ok_for_base_p): Likewise. (riscv_valid_base_register_p): Likewise. (riscv_valid_offset_p): Likewise. (riscv_valid_lo_sum_p): Likewise. (riscv_classify_address): Likewise. (riscv_legitimate_address_p): Likewise. (riscv_address_insns): Likewise. (riscv_load_store_insns): Likewise. (riscv_force_binary): Likewise. (riscv_split_symbol): Likewise. (riscv_force_address): Likewise. (riscv_legitimize_address): Likewise. (riscv_move_integer): Likewise. (riscv_legitimize_const_move): Likewise. (riscv_legitimize_move): Likewise. (riscv_address_cost): Likewise. (riscv_subword): Likewise. (riscv_output_move): Likewise. (riscv_canonicalize_int_order_test): Likewise. (riscv_emit_int_order_test): Likewise. (riscv_function_arg_boundary): Likewise. (riscv_pass_mode_in_fpr_p): Likewise. (riscv_pass_fpr_single): Likewise. (riscv_pass_fpr_pair): Likewise. (riscv_get_arg_info): Likewise. (riscv_function_arg): Likewise. (riscv_function_arg_advance): Likewise. (riscv_arg_partial_bytes): Likewise. (riscv_function_value): Likewise. (riscv_pass_by_reference): Likewise. (riscv_setup_incoming_varargs): Likewise. (riscv_print_operand): Likewise. (riscv_elf_select_rtx_section): Likewise. (riscv_save_restore_reg): Likewise. (riscv_for_each_saved_reg): Likewise. (riscv_register_move_cost): Likewise. (riscv_hard_regno_mode_ok_p): Likewise. (riscv_hard_regno_nregs): Likewise. (riscv_class_max_nregs): Likewise. (riscv_memory_move_cost): Likewise. * config/rl78/rl78-protos.h (rl78_split_movsi): Likewise. * config/rl78/rl78.c (rl78_split_movsi): Likewise. (rl78_addr_space_address_mode): Likewise. * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Likewise. * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Likewise. (rs6000_reassociation_width): Likewise. (rs6000_invalid_binary_op): Likewise. (fusion_p9_p): Likewise. (emit_fusion_p9_load): Likewise. (emit_fusion_p9_store): Likewise. * config/visium/visium-protos.h (prepare_move_operands): Likewise. (ok_for_simple_move_operands): Likewise. (ok_for_simple_move_strict_operands): Likewise. (ok_for_simple_arith_logic_operands): Likewise. (visium_legitimize_reload_address): Likewise. (visium_select_cc_mode): Likewise. (output_cbranch): Likewise. (visium_split_double_move): Likewise. (visium_expand_copysign): Likewise. (visium_expand_int_cstore): Likewise. (visium_expand_fp_cstore): Likewise. * config/visium/visium.c (visium_pass_by_reference): Likewise. (visium_function_arg): Likewise. (visium_function_arg_advance): Likewise. (visium_libcall_value): Likewise. (visium_setup_incoming_varargs): Likewise. (visium_legitimate_constant_p): Likewise. (visium_legitimate_address_p): Likewise. (visium_legitimize_address): Likewise. (visium_secondary_reload): Likewise. (visium_register_move_cost): Likewise. (visium_memory_move_cost): Likewise. (prepare_move_operands): Likewise. (ok_for_simple_move_operands): Likewise. (ok_for_simple_move_strict_operands): Likewise. (ok_for_simple_arith_logic_operands): Likewise. (visium_function_value_1): Likewise. (rtx_ok_for_offset_p): Likewise. (visium_legitimize_reload_address): Likewise. (visium_split_double_move): Likewise. (visium_expand_copysign): Likewise. (visium_expand_int_cstore): Likewise. (visium_expand_fp_cstore): Likewise. (visium_split_cstore): Likewise. (visium_select_cc_mode): Likewise. (visium_split_cbranch): Likewise. (output_cbranch): Likewise. (visium_print_operand_address): Likewise. * expmed.c (flip_storage_order): Likewise. * expmed.h (emit_cstore): Likewise. (flip_storage_order): Likewise. * genrecog.c (validate_pattern): Likewise. * hsa-gen.c (gen_hsa_addr): Likewise. * internal-fn.c (expand_arith_overflow): Likewise. * ira-color.c (allocno_copy_cost_saving): Likewise. * lra-assigns.c (find_hard_regno_for_1): Likewise. * lra-constraints.c (prohibited_class_reg_set_mode_p): Likewise. (process_invariant_for_inheritance): Likewise. * lra-eliminations.c (move_plus_up): Likewise. * omp-low.c (lower_oacc_reductions): Likewise. * simplify-rtx.c (simplify_subreg): Likewise. * target.def (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise. (TARGET_CHKP_BOUND_MODE): Likewise.. * targhooks.c (default_chkp_bound_mode): Likewise. (default_setup_incoming_vararg_bounds): Likewise. * targhooks.h (default_chkp_bound_mode): Likewise. (default_setup_incoming_vararg_bounds): Likewise. * tree-ssa-math-opts.c (divmod_candidate_p): Likewise. * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise. (have_whole_vector_shift): Likewise. * tree-vect-stmts.c (vectorizable_load): Likewise. * doc/tm.texi: Regenerate. gcc/brig/ * brig-c.h (brig_type_for_mode): Remove "enum" before "machine_mode". * brig-lang.c (brig_langhook_type_for_mode): Likewise. gcc/jit/ * dummy-frontend.c (jit_langhook_type_for_mode): Remove "enum" before "machine_mode". Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r250003
2017-06-14simplify-rtx.c (simplify_binary_operation_1): Do not simplify a division of ↵Eric Botcazou1-1/+2
0 if non-call exceptions are enabled. * simplify-rtx.c (simplify_binary_operation_1) <UDIV>: Do not simplify a division of 0 if non-call exceptions are enabled. From-SVN: r249188
2017-05-06PR 75964: Invalid integer ABS handling in simplify-rtx.cRichard Sandiford1-24/+4
RTL has no distinction between signed and unsigned values, so it doesn't make sense to test for signed overflow. 2017-05-06 Richard Sandiford <richard.sandiford@linaro.org> gcc/ PR rtl-optimization/75964 * simplify-rtx.c (simplify_const_relational_operation): Remove invalid handling of comparisons of integer ABS. gcc/testsuite/ PR rtl-optimization/75964 * gcc.dg/torture/pr75964.c: New test. From-SVN: r247719
2017-05-02simplify-rtx.c (simplify_binary_operation_1): Add LSHIFTRT case.Tamar Christina1-5/+7
gcc/ 2017-04-27 Tamar Christina <tamar.christina@arm.com> * simplify-rtx.c (simplify_binary_operation_1): Add LSHIFTRT case. gcc/testsuite/ 2017-04-27 Tamar Christina <tamar.christina@arm.com> * gcc.dg/lsr-div1.c: New testcase. From-SVN: r247504
2017-05-02common.opt (fstrict-overflow): Alias negative to fwrapv.Richard Biener1-2/+2
2017-05-02 Richard Biener <rguenther@suse.de> * common.opt (fstrict-overflow): Alias negative to fwrapv. * doc/invoke.texi (fstrict-overflow): Remove all traces of -fstrict-overflow documentation. * tree.h (TYPE_OVERFLOW_UNDEFINED): Do not test flag_strict_overflow. (POINTER_TYPE_OVERFLOW_UNDEFINED): Test !flag_wrapv instead of flag_strict_overflow. * ipa-inline.c (can_inline_edge_p): Do not test flag_strict_overflow. * lto-opts.c (lto_write_options): Do not stream it. * lto-wrapper.c (merge_and_complain): Do not handle it. * opts.c (default_options_table): Do not set -fstrict-overflow. (finish_options): Likewise do not clear it when sanitizing. * simplify-rtx.c (simplify_const_relational_operation): Do not test flag_strict_overflow. ada/ * gcc-interface/misc.c (gnat_post_options): Do not set -fstrict-overflow. * c-c++-common/Wlogical-op-1.c: Add -fwrapv to restore previous behavior. * gcc.target/i386/pr46253.c: Make i unsigned to avoid warning. From-SVN: r247495
2017-04-11re PR middle-end/80100 (simplify-rtx.c sanitizer detects undefined behaviour ↵Jakub Jelinek1-2/+2
with optimization) PR middle-end/80100 * simplify-rtx.c (simplify_binary_operation_1) <case IOR>: Perform left shift in unsigned HOST_WIDE_INT type. * gcc.dg/pr80100.c: New test. From-SVN: r246851
2017-04-11re PR rtl-optimization/80385 (Segfault in commutative_operand_precedence() ↵Jakub Jelinek1-2/+4
rtlanal.c:3373) PR rtl-optimization/80385 * simplify-rtx.c (simplify_unary_operation_1): Don't transform (not (neg X)) into (plus X -1) for complex or non-integral modes. * g++.dg/opt/pr80385.C: New test. From-SVN: r246850
2017-04-04simplify-rtx: Fix compare of comparisons (PR60818)Segher Boessenkool1-3/+3
The function simplify_binary_operation_1 has code that does /* Convert (compare (gt (flags) 0) (lt (flags) 0)) to (flags). */ but this transformation is only valid if "flags" has the same machine mode as the outer compare. This fixes it. PR rtl-optimization/60818 * simplify-rtx.c (simplify_binary_operation_1): Do not replace a compare of comparisons with the thing compared if this results in a different machine mode. gcc/testsuite/ PR rtl-optimization/60818 * gcc.c-torture/compile/pr60818.c: New testcase. From-SVN: r246666
2017-03-21Fix another profiledbootstrap warning (PR libfortran/79956).Martin Liska1-1/+1
2017-03-21 Martin Liska <mliska@suse.cz> PR libfortran/79956 * simplify-rtx.c (simplify_immed_subreg): Initialize a variable to NULL. From-SVN: r246317
2017-02-21re PR tree-optimization/61441 (ARM aarch64 fails to quiet signaling NaN)Jakub Jelinek1-8/+11
PR tree-optimization/61441 * simplify-rtx.c (simplify_const_unary_operation): For -fsignaling-nans and sNaN operand, return NULL_RTX rather than the sNaN unmodified. From-SVN: r245620
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-12-03simplify-rtx: Fix the last fix (PR78638)Segher Boessenkool1-1/+1
I managed to get the last obvious fix wrong: mode is M1, GET_MODE (op) is M2. * simplify-rtx.c (simplify_truncation): M2 is not mode, it is GET_MODE (op). Fix this. From-SVN: r243210
2016-11-30simplify-rtx: Add missing line for previous commit (PR78583)Segher Boessenkool1-0/+1
The comment for the added case to simplify_truncation reads /* Turn (truncate:M1 (*_extract:M2 (reg:M2) (len) (pos))) into (*_extract:M1 (truncate:M1 (reg:M2)) (len) (pos')) if possible without changing len. */ but I forgot to check the two modes M2 are actually the same. PR rtl-optimization/78583 * simplify-rtx.c (simplify_truncation): Add check missing from the previous commit. From-SVN: r243000
2016-11-29simplify-rtx: Handle truncate of extractSegher Boessenkool1-0/+30
simplify_truncation changes the truncation of many operations into the operation on the truncation. This patch makes this code also handle extracts. * simplify-rtx.c (simplify_truncation): Handle truncate of zero_extract and sign_extract. From-SVN: r242946
2016-11-28re PR rtl-optimization/78546 (wrong code at -O2 and above)Jakub Jelinek1-6/+14
PR rtl-optimization/78546 * simplify-rtx.c (neg_const_int): When negating most negative number in mode wider than HOST_BITS_PER_WIDE_INT, use simplify_const_unary_operation to produce CONST_DOUBLE or CONST_WIDE_INT. (simplify_plus_minus): Hanlde the case where neg_const_int doesn't return a CONST_INT. * gcc.dg/torture/pr78546-1.c: New test. * gcc.dg/torture/pr78546-2.c: New test. From-SVN: r242929
2016-11-25re PR rtl-optimization/78526 (ICE: in decompose, at rtl.h:2117 with -g ↵Jakub Jelinek1-1/+2
-mavx512bw) PR rtl-optimization/78526 * simplify-rtx.c (simplify_immed_subreg): Don't use wi::extract_uhwi beyond val's precision. * gcc.dg/pr78526.c: New test. From-SVN: r242882
2016-11-18Use rtx_mode_t instead of std::make_pairRichard Sandiford1-13/+13
This change makes the code less sensitive to the exact type of the mode, i.e. it forces a conversion where necessary. This becomes important when wrappers like scalar_int_mode and scalar_mode can also be used instead of machine_mode. Using rtx_mode_t also abstracts away the representation. The fact that it's a std::pair rather than a custom class isn't important to users of the interface. gcc/ 2016-11-18 Richard Sandiford <richard.sandiford@arm.com> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * combine.c (try_combine): Use rtx_mode_t instead of std::make_pair. * dwarf2out.c (mem_loc_descriptor, loc_descriptor): Likewise. (add_const_value_attribute): Likewise. * explow.c (plus_constant): Likewise. * expmed.c (expand_mult, make_tree): Likewise. * expr.c (convert_modes): Likewise. * loop-doloop.c (doloop_optimize): Likewise. * postreload.c (reload_cse_simplify_set): Likewise. * simplify-rtx.c (simplify_const_unary_operation): Likewise. (simplify_binary_operation_1, simplify_const_binary_operation): (simplify_const_relational_operation, simplify_immed_subreg): Likewise. * wide-int.h: Update documentation to recommend rtx_mode_t instead of std::make_pair. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r242586
2016-11-10simplify-rtx: Transform (xor (and (xor A B) C) B) with C constSegher Boessenkool1-0/+31
match.pd transforms (A&C)|(B&~C) to ((A^B)&C)^B, which is fewer operations if C is not const (and it is not on simple tests at least, this transform is done very early already). Various processors have "insert" instructions that can do this, but combine cannot build those from the xor-and-xor, especially it has no chance at all to do that if A or B or multiple instructions as well (on PowerPC, the rl[wd]imi instructions can do this with together with a rotate, or a simple shift with appropriate C; other ISAs have similar insns). This patch makes RTL simplify transform (xor (and (xor A B) C) B) back to (ior (and A C) (and B ~C)) for constant C (and similar with A instead of B for that last term). * simplify-rtx.c (simplify_binary_operation_1): Simplify (xor (and (xor A B) C) B) to (ior (and A C) (and B ~C)) and (xor (and (xor A B) C) A) to (ior (and A ~C) (and B C)) if C is a const_int. From-SVN: r242031
2016-10-13Move MEMMODEL_* from coretypes.h to memmodel.hThomas Preud'homme1-0/+1
2016-10-13 Thomas Preud'homme <thomas.preudhomme@arm.com> gcc/ * coretypes.h: Move MEMMODEL_* macros and enum memmodel definition into ... * memmodel.h: This file. * alias.c, asan.c, auto-inc-dec.c, bb-reorder.c, bt-load.c, caller-save.c, calls.c, ccmp.c, cfgbuild.c, cfgcleanup.c, cfgexpand.c, cfgloopanal.c, cfgrtl.c, cilk-common.c, combine.c, combine-stack-adj.c, common/config/aarch64/aarch64-common.c, common/config/arm/arm-common.c, common/config/bfin/bfin-common.c, common/config/c6x/c6x-common.c, common/config/i386/i386-common.c, common/config/ia64/ia64-common.c, common/config/nvptx/nvptx-common.c, compare-elim.c, config/aarch64/aarch64-builtins.c, config/aarch64/aarch64-c.c, config/aarch64/cortex-a57-fma-steering.c, config/arc/arc.c, config/arc/arc-c.c, config/arm/arm-builtins.c, config/arm/arm-c.c, config/avr/avr.c, config/avr/avr-c.c, config/avr/avr-log.c, config/bfin/bfin.c, config/c6x/c6x.c, config/cr16/cr16.c, config/cris/cris.c, config/darwin-c.c, config/darwin.c, config/epiphany/epiphany.c, config/epiphany/mode-switch-use.c, config/epiphany/resolve-sw-modes.c, config/fr30/fr30.c, config/frv/frv.c, config/ft32/ft32.c, config/h8300/h8300.c, config/i386/i386-c.c, config/i386/winnt.c, config/iq2000/iq2000.c, config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c, config/m68k/m68k.c, config/mcore/mcore.c, config/microblaze/microblaze.c, config/mmix/mmix.c, config/mn10300/mn10300.c, config/moxie/moxie.c, config/msp430/msp430.c, config/nds32/nds32-cost.c, config/nds32/nds32-intrinsic.c, config/nds32/nds32-md-auxiliary.c, config/nds32/nds32-memory-manipulation.c, config/nds32/nds32-predicates.c, config/nds32/nds32.c, config/nios2/nios2.c, config/nvptx/nvptx.c, config/pa/pa.c, config/pdp11/pdp11.c, config/rl78/rl78.c, config/rs6000/rs6000-c.c, config/rx/rx.c, config/s390/s390-c.c, config/s390/s390.c, config/sh/sh.c, config/sh/sh-c.c, config/sh/sh-mem.cc, config/sh/sh_treg_combine.cc, config/sol2.c, config/spu/spu.c, config/stormy16/stormy16.c, config/tilegx/tilegx.c, config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c, config/visium/visium.c, config/vms/vms-c.c, config/xtensa/xtensa.c, coverage.c, cppbuiltin.c, cprop.c, cse.c, cselib.c, dbxout.c, dce.c, df-core.c, df-problems.c, df-scan.c, dojump.c, dse.c, dwarf2asm.c, dwarf2cfi.c, dwarf2out.c, emit-rtl.c, except.c, explow.c, expmed.c, expr.c, final.c, fold-const.c, function.c, fwprop.c, gcse.c, ggc-page.c, haifa-sched.c, hsa-brig.c, hsa-gen.c, hw-doloop.c, ifcvt.c, init-regs.c, internal-fn.c, ira-build.c, ira-color.c, ira-conflicts.c, ira-costs.c, ira-emit.c, ira-lives.c, ira.c, jump.c, loop-doloop.c, loop-invariant.c, loop-iv.c, loop-unroll.c, lower-subreg.c, lra.c, lra-assigns.c, lra-coalesce.c, lra-constraints.c, lra-eliminations.c, lra-lives.c, lra-remat.c, lra-spills.c, mode-switching.c, modulo-sched.c, omp-low.c, passes.c, postreload-gcse.c, postreload.c, predict.c, print-rtl-function.c, recog.c, ree.c, reg-stack.c, regcprop.c, reginfo.c, regrename.c, reload.c, reload1.c, reorg.c, resource.c, rtl-chkp.c, rtl-tests.c, rtlanal.c, rtlhooks.c, sched-deps.c, sched-rgn.c, sdbout.c, sel-sched-ir.c, sel-sched.c, shrink-wrap.c, simplify-rtx.c, stack-ptr-mod.c, stmt.c, stor-layout.c, target-globals.c, targhooks.c, toplev.c, tree-nested.c, tree-outof-ssa.c, tree-profile.c, tree-ssa-coalesce.c, tree-ssa-ifcombine.c, tree-ssa-loop-ivopts.c, tree-ssa-loop.c, tree-ssa-reassoc.c, tree-ssa-sccvn.c, tree-vect-data-refs.c, ubsan.c, valtrack.c, var-tracking.c, varasm.c: Include memmodel.h. * genattrtab.c (write_header): Include memmodel.h in generated file. * genautomata.c (main): Likewise. * gengtype.c (open_base_files): Likewise. * genopinit.c (main): Likewise. * genconditions.c (write_header): Include memmodel.h earlier in generated file. * genemit.c (main): Likewise. * genoutput.c (output_prologue): Likewise. * genpeep.c (main): Likewise. * genpreds.c (write_insn_preds_c): Likewise. * genrecog.c (write_header): Likewise. * Makefile.in (PLUGIN_HEADERS): Include memmodel.h gcc/ada/ * gcc-interface/utils2.c: Include memmodel.h. gcc/c-family/ * c-cppbuiltin.c: Include memmodel.h. * c-opts.c: Likewise. * c-pragma.c: Likewise. * c-warn.c: Likewise. gcc/c/ * c-typeck.c: Include memmodel.h. gcc/cp/ * decl2.c: Include memmodel.h. * rtti.c: Likewise. gcc/fortran/ * trans-intrinsic.c: Include memmodel.h. gcc/go/ * go-backend.c: Include memmodel.h. libgcc/ * libgcov-profiler.c: Replace MEMMODEL_* macros by their __ATOMIC_* equivalent. * config/tilepro/atomic.c: Likewise and stop casting model to enum memmodel. From-SVN: r241121
2016-10-09tree-ssa.c (target_for_debug_bind, [...]): Use VAR_P and/or ↵Jakub Jelinek1-1/+1
VAR_OR_FUNCTION_DECL_P macros. * tree-ssa.c (target_for_debug_bind, verify_phi_args, ssa_undefined_value_p, maybe_optimize_var): Use VAR_P and/or VAR_OR_FUNCTION_DECL_P macros. * tree-chkp.c (chkp_register_var_initializer, chkp_make_static_bounds, chkp_get_bounds_for_decl_addr, chkp_parse_array_and_component_ref, chkp_find_bounds_1): Likewise. * ipa-polymorphic-call.c (decl_maybe_in_construction_p): Likewise. * hsa-gen.c (get_symbol_for_decl): Likewise. * cgraphunit.c (check_global_declaration, analyze_functions, handle_alias_pairs, thunk_adjust, cgraph_node::expand_thunk): Likewise. * gimple-fold.c (can_refer_decl_in_current_unit_p, canonicalize_constructor_val, gimple_get_virt_method_for_vtable): Likewise. * tree.c (set_decl_section_name, copy_node_stat, need_assembler_name_p, free_lang_data_in_decl, find_decls_types_r, merge_dllimport_decl_attributes, handle_dll_attribute, decl_init_priority_insert, auto_var_in_fn_p, array_at_struct_end_p, verify_type): Likewise. * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior, find_explicit_erroneous_behavior): Likewise. * sdbout.c (sdbout_toplevel_data, sdbout_late_global_decl): Likewise. * ipa.c (process_references): Likewise. * tree-chkp-opt.c (chkp_get_check_result): Likewise. * varasm.c (get_block_for_decl, use_blocks_for_decl_p, make_decl_rtl, notice_global_symbol, assemble_variable, mark_decl_referenced, build_constant_desc, output_constant_def_contents, do_assemble_alias, make_decl_one_only, default_section_type_flags, categorize_decl_for_section, default_encode_section_info): Likewise. * trans-mem.c (requires_barrier): Likewise. * gimple-expr.c (mark_addressable): Likewise. * cfgexpand.c (add_scope_conflicts_1, expand_one_var, expand_used_vars_for_block, clear_tree_used, stack_protect_decl_p, expand_debug_expr): Likewise. * tree-dump.c (dequeue_and_dump): Likewise. * ubsan.c (instrument_bool_enum_load): Likewise. * tree-pretty-print.c (print_declaration): Likewise. * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise. * tree-ssa-uninit.c (warn_uninitialized_vars): Likewise. * asan.c (asan_protect_global, instrument_derefs): Likewise. * tree-into-ssa.c (rewrite_stmt, maybe_register_def, pass_build_ssa::execute): Likewise. * var-tracking.c (var_debug_decl, track_expr_p): Likewise. * tree-ssa-loop-ivopts.c (force_expr_to_var_cost, split_address_cost): Likewise. * ipa-split.c (test_nonssa_use, consider_split, mark_nonssa_use): Likewise. * tree-inline.c (insert_debug_decl_map, remap_ssa_name, can_be_nonlocal, remap_decls, copy_debug_stmt, initialize_inlined_parameters, add_local_variables, reset_debug_binding, replace_locals_op): Likewise. * dse.c (can_escape): Likewise. * ipa-devirt.c (compare_virtual_tables, referenced_from_vtable_p): Likewise. * tree-diagnostic.c (default_tree_printer): Likewise. * tree-streamer-in.c (unpack_ts_decl_common_value_fields, unpack_ts_decl_with_vis_value_fields, lto_input_ts_decl_common_tree_pointers): Likewise. * builtins.c (builtin_save_expr, fold_builtin_expect, readonly_data_expr): Likewise. * tree-ssa-structalias.c (new_var_info, get_constraint_for_ssa_var, create_variable_info_for, set_uids_in_ptset, visit_loadstore): Likewise. * gimple-streamer-out.c (output_gimple_stmt): Likewise. * gimplify.c (force_constant_size, gimplify_bind_expr, gimplify_decl_expr, gimplify_var_or_parm_decl, gimplify_compound_lval, gimplify_init_constructor, gimplify_modify_expr, gimplify_asm_expr, gimplify_oacc_declare, gimplify_type_sizes): Likewise. * cgraphbuild.c (record_reference, record_type_list, mark_address, mark_load, mark_store, pass_build_cgraph_edges::execute): Likewise. * tree-ssa-live.c (mark_all_vars_used_1, remove_unused_scope_block_p, remove_unused_locals): Likewise. * tree-ssa-alias.c (ptr_deref_may_alias_decl_p, ptrs_compare_unequal, ref_maybe_used_by_call_p_1, call_may_clobber_ref_p_1): Likewise. * function.c (instantiate_expr, instantiate_decls_1, setjmp_vars_warning, add_local_decl): Likewise. * alias.c (ao_ref_from_mem, get_alias_set, compare_base_symbol_refs): Likewise. * tree-stdarg.c (find_va_list_reference, va_list_counter_struct_op, va_list_ptr_read, va_list_ptr_write, check_all_va_list_escapes, optimize_va_list_gpr_fpr_size): Likewise. * tree-nrv.c (pass_nrv::execute): Likewise. * tsan.c (instrument_expr): Likewise. * tree-ssa-dce.c (remove_dead_stmt): Likewise. * vtable-verify.c (verify_bb_vtables): Likewise. * tree-dfa.c (ssa_default_def, set_ssa_default_def, get_ref_base_and_extent): Likewise. * toplev.c (wrapup_global_declaration_1, wrapup_global_declaration_2): Likewise. * tree-sra.c (static bool constant_decl_p, find_var_candidates, analyze_all_variable_accesses): Likewise. * tree-nested.c (get_nonlocal_debug_decl, convert_nonlocal_omp_clauses, note_nonlocal_vla_type, note_nonlocal_block_vlas, convert_nonlocal_reference_stmt, get_local_debug_decl, convert_local_omp_clauses, convert_local_reference_stmt, nesting_copy_decl, remap_vla_decls): Likewise. * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Likewise. * stmt.c (decl_overlaps_hard_reg_set_p): Likewise. * dbxout.c (dbxout_late_global_decl, dbxout_type_fields, dbxout_symbol, dbxout_common_check): Likewise. * expr.c (expand_assignment, expand_expr_real_2, expand_expr_real_1, string_constant): Likewise. * hsa.c (hsa_get_declaration_name): Likewise. * passes.c (rest_of_decl_compilation): Likewise. * tree-ssanames.c (make_ssa_name_fn): Likewise. * tree-streamer-out.c (pack_ts_decl_common_value_fields, pack_ts_decl_with_vis_value_fields, write_ts_decl_common_tree_pointers): Likewise. * stor-layout.c (place_field): Likewise. * symtab.c (symtab_node::maybe_create_reference, symtab_node::verify_base, symtab_node::make_decl_local, symtab_node::copy_visibility_from, symtab_node::can_increase_alignment_p): Likewise. * dwarf2out.c (add_var_loc_to_decl, tls_mem_loc_descriptor, decl_by_reference_p, reference_to_unused, rtl_for_decl_location, fortran_common, add_location_or_const_value_attribute, add_scalar_info, add_linkage_name, set_block_abstract_flags, local_function_static, gen_variable_die, dwarf2out_late_global_decl, optimize_one_addr_into_implicit_ptr, optimize_location_into_implicit_ptr): Likewise. * gimple-low.c (record_vars_into): Likewise. * ipa-visibility.c (update_vtable_references): Likewise. * tree-ssa-address.c (fixed_address_object_p, copy_ref_info): Likewise. * lto-streamer-out.c (tree_is_indexable, get_symbol_initial_value, DFS::DFS_write_tree_body, write_symbol): Likewise. * langhooks.c (lhd_warn_unused_global_decl, lhd_set_decl_assembler_name): Likewise. * attribs.c (decl_attributes): Likewise. * except.c (output_ttype): Likewise. * varpool.c (varpool_node::get_create, ctor_for_folding, varpool_node::assemble_decl, varpool_node::create_alias): Likewise. * fold-const.c (fold_unary_loc): Likewise. * ipa-prop.c (ipa_compute_jump_functions_for_edge, ipa_find_agg_cst_from_init): Likewise. * omp-low.c (expand_omp_regimplify_p, expand_omp_taskreg, expand_omp_target, lower_omp_regimplify_p, grid_reg_assignment_to_local_var_p, grid_remap_prebody_decls, find_link_var_op): Likewise. * tree-chrec.c (chrec_contains_symbols): Likewise. * tree-cfg.c (verify_address, verify_expr, verify_expr_location_1, gimple_duplicate_bb, move_stmt_op, replace_block_vars_by_duplicates, execute_fixup_cfg): Likewise. From-SVN: r240900
2016-10-07[simplify-rtx] Zero-initialise local array in simplify_immed_subregKyrylo Tkachov1-3/+1
* simplify-rtx.c (simplify_immed_subreg): Zero-initialize tmp array before merging in bytes to pass down to real_from_target. From-SVN: r240866
2016-09-22make next/prev _nonnote_insn take rtx_insn *Trevor Saunders1-4/+4
gcc/ChangeLog: 2016-09-22 Trevor Saunders <tbsaunde+gcc@tbsaunde.org> * emit-rtl.c (next_nonnote_insn): Change argument type to rtx_insn *. (prev_nonnote_insn): Likewise. * jump.c (reversed_comparison_code_parts): Likewise. (reversed_comparison): Likewise. * rtl.h: Adjust prototypes. * config/arc/arc.md: Adjust. * cse.c (find_comparison_args): Likewise. * reorg.c (redundant_insn): Change return type to rtx_insn *. (fix_reg_dead_note): Change argument type to rtx_insn *. (delete_prior_computation): Likewise. (delete_computation): Likewise. (fill_slots_from_thread): Adjust. (relax_delay_slots): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. (simplify_relational_operation_1): Likewise. (simplify_ternary_operation): Likewise. From-SVN: r240357
2016-09-19[simplify-rtx] (GTU (PLUS a C) (C - 1)) --> (LTU a -C)Kyrylo Tkachov1-0/+13
* simplify-rtx.c (simplify_relational_operation_1): Add transformation (GTU (PLUS a C) (C - 1)) --> (LTU a -C). * gcc.target/aarch64/gtu_to_ltu_cmp_1.c: New test. * gcc.target/aarch64/gtu_to_ltu_cmp_2.c: New test. From-SVN: r240238
2016-08-30re PR middle-end/77377 (c-c++-common/pr59037.c ICEs with -fpic -msse on i686)Jakub Jelinek1-4/+3
PR middle-end/77377 * simplify-rtx.c (avoid_constant_pool_reference): For out of bounds constant pool reference return x instead of c. * gcc.target/i386/pr77377.c: New test. From-SVN: r239854
2016-08-12re PR c/7652 (-Wswitch-break : Warn if a switch case falls through)Marek Polacek1-1/+1
PR c/7652 gcc/ * alias.c (find_base_value): Adjust fall through comment. * cfgexpand.c (expand_debug_expr): Likewise. * combine.c (find_split_point): Likewise. (expand_compound_operation): Likewise. Add FALLTHRU. (make_compound_operation): Adjust fall through comment. (canon_reg_for_combine): Add FALLTHRU. (force_to_mode): Adjust fall through comment. (simplify_shift_const_1): Likewise. (simplify_comparison): Likewise. * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Add FALLTHRU. * config/aarch64/predicates.md: Likewise. * config/i386/i386.c (function_arg_advance_32): Likewise. (ix86_gimplify_va_arg): Likewise. (print_reg): Likewise. (ix86_print_operand): Likewise. (ix86_build_const_vector): Likewise. (ix86_expand_branch): Likewise. (ix86_sched_init_global): Adjust fall through comment. (ix86_expand_args_builtin): Add FALLTHRU. (ix86_expand_builtin): Likewise. (ix86_expand_vector_init_one_var): Likewise. * config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise. (rs6000_adjust_cost): Likewise. (insn_must_be_first_in_group): Likewise. * config/rs6000/rs6000.md: Likewise. Adjust fall through comment. * dbxout.c (dbxout_symbol): Adjust fall through comment. * df-scan.c (df_uses_record): Likewise. * dojump.c (do_jump): Add FALLTHRU. * dwarf2out.c (mem_loc_descriptor): Likewise. Adjust fall through comment. (resolve_args_picking_1): Adjust fall through comment. (loc_list_from_tree_1): Likewise. * expmed.c (make_tree): Likewise. * expr.c (expand_expr_real_2): Add FALLTHRU. (expand_expr_real_1): Likewise. Adjust fall through comment. * fold-const.c (const_binop): Adjust fall through comment. (fold_truth_not_expr): Likewise. (fold_cond_expr_with_comparison): Add FALLTHRU. (fold_binary_loc): Likewise. (contains_label_1): Adjust fall through comment. (multiple_of_p): Likewise. * gcov-tool.c (process_args): Add FALLTHRU. * genattrtab.c (check_attr_test): Likewise. (write_test_expr): Likewise. * genconfig.c (walk_insn_part): Likewise. * genpreds.c (validate_exp): Adjust fall through comment. (needs_variable): Likewise. * gensupport.c (get_alternatives_number): Add FALLTHRU. (subst_dup): Likewise. * gimple-pretty-print.c (dump_gimple_assign): Likewise. * gimplify.c (gimplify_addr_expr): Adjust fall through comment. (gimplify_scan_omp_clauses): Add FALLTHRU. (goa_stabilize_expr): Likewise. * graphite-isl-ast-to-gimple.c (substitute_ssa_name): Adjust fall through comment. * hsa-gen.c (get_address_from_value): Likewise. * ipa-icf.c (sem_function::hash_stmt): Likewise. * ira.c (ira_setup_alts): Add FALLTHRU. * lra-eliminations.c (lra_eliminate_regs_1): Adjust fall through comment. * lto-streamer-out.c (lto_output_tree_ref): Add FALLTHRU. * opts.c (common_handle_option): Likewise. * read-rtl.c (read_rtx_code): Likewise. * real.c (round_for_format): Likewise. * recog.c (asm_operand_ok): Likewise. * reginfo.c (reg_scan_mark_refs): Adjust fall through comment. * reload1.c (set_label_offsets): Likewise. (eliminate_regs_1): Likewise. (reload_reg_reaches_end_p): Likewise. * rtlanal.c (commutative_operand_precedence): Add FALLTHRU. (rtx_cost): Likewise. * sched-rgn.c (is_exception_free): Likewise. * simplify-rtx.c (simplify_rtx): Adjust fall through comment. * stor-layout.c (int_mode_for_mode): Likewise. * toplev.c (print_to_asm_out_file): Likewise. (print_to_stderr): Likewise. * tree-cfg.c (gimple_verify_flow_info): Likewise. * tree-chrec.c (chrec_fold_plus_1): Add FALLTHRU. (chrec_fold_multiply): Likewise. (evolution_function_is_invariant_rec_p): Likewise. (for_each_scev_op): Likewise. * tree-data-ref.c (siv_subscript_p): Likewise. (get_references_in_stmt): Likewise. * tree.c (find_placeholder_in_expr): Adjust fall through comment. (substitute_in_expr): Likewise. (type_cache_hasher::equal): Likewise. (walk_type_fields): Likewise. * var-tracking.c (adjust_mems): Add FALLTHRU. (set_dv_changed): Adjust fall through comment. * varasm.c (default_function_section): Add FALLTHRU. gcc/c-family/ * c-common.c (scalar_to_vector): Adjust fall through comment. * c-opts.c (c_common_handle_option): Likewise. * c-pragma.c (handle_pragma_pack): Add FALLTHRU. * c-pretty-print.c (c_pretty_printer::postfix_expression): Adjust fall through comment. * cilk.c (extract_free_variables): Add FALLTHRU. gcc/c/ * c-parser.c (c_parser_external_declaration): Add FALLTHRU. (c_parser_postfix_expression): Likewise. * c-typeck.c (build_unary_op): Adjust fall through comment. (c_mark_addressable): Likewise. gcc/cp/ * call.c (add_builtin_candidate): Add FALLTHRU. (build_integral_nontype_arg_conv): Adjust fall through comment. (build_new_op_1): Add FALLTHRU. (convert_like_real): Adjust fall through comment. * class.c (fixed_type_or_null): Likewise. * constexpr.c (cxx_eval_constant_expression): Likewise. (potential_constant_expression_1): Likewise. Add FALLTHRU. * cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment. (cp_fold): Add FALLTHRU. * cvt.c (build_expr_type_conversion): Adjust fall through comment. * cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU. (pp_cxx_qualified_id): Likewise. (cxx_pretty_printer::constant): Adjust fall through comment. (cxx_pretty_printer::primary_expression): Add FALLTHRU. (pp_cxx_pm_expression): Adjust fall through comment. (cxx_pretty_printer::expression): Add FALLTHRU. (cxx_pretty_printer::declaration_specifiers): Reformat code. (pp_cxx_type_specifier_seq): Adjust fall through comment. (pp_cxx_ptr_operator): Likewise. Add FALLTHRU. * error.c (dump_type): Adjust fall through comment. (dump_decl): Likewise. * mangle.c (write_type): Likewise. * method.c (synthesized_method_walk): Add FALLTHRU. * name-lookup.c (arg_assoc_type): Likewise. * parser.c (cp_lexer_print_token): Adjust fall through comment. (cp_parser_primary_expression): Add FALLTHRU. (cp_parser_operator): Likewise. * pt.c (find_parameter_packs_r): Likewise. (tsubst_aggr_type): Adjust fall through comment. * semantics.c (finish_omp_clauses): Add FALLTHRU. * tree.c (lvalue_kind): Likewise. gcc/fortran/ * decl.c (match_attr_spec): Add FALLTHRU. * primary.c (match_arg_list_function): Likewise. * resolve.c (resolve_operator): Adjust fall through comment. (fixup_charlen): Add FALLTHRU. (resolve_allocate_expr): Adjust fall through comment. * trans-array.c (gfc_conv_ss_startstride): Add FALLTHRU. * trans-intrinsic.c (gfc_conv_intrinsic_len): Adjust fall through comment. gcc/java/ * expr.c (java_truthvalue_conversion): Adjust fall through comment. * jcf-io.c (verify_constant_pool): Likewise. * typeck.c (promote_type): Likewise. gcc/objc/ * objc-encoding.c (encode_type): Add FALLTHRU. libcpp/ * lex.c (search_line_fast): Add FALLTHRU. (_cpp_lex_direct): Likewise. (cpp_token_val_index): Adjust fall through comment. * macro.c (parse_params): Add FALLTHRU. * pch.c (count_defs): Adjust fall through comment. (write_defs): Likewise. libiberty/ * cp-demangle.c (d_print_mod): Add FALLTHRU. From-SVN: r239410
2016-07-26re PR rtl-optimization/71984 (wrong code with -O -mavx512cd)Richard Biener1-2/+5
2016-07-26 Richard Biener <rguenther@suse.de> PR rtl-optimization/71984 * simplify-rtx.c (simplify_subreg): Use GET_MODE_SIZE and prepare for VOIDmode. * gcc.dg/torture/pr71984.c: New testcase. From-SVN: r238757
2016-07-20hwint.h (HOST_WIDE_INT_0): New define.Uros Bizjak1-1/+1
* hwint.h (HOST_WIDE_INT_0): New define. (HOST_WIDE_INT_0U): Ditto. * double-int.c: Use HOST_WIDE_INT_0 instead of (HOST_WIDE_INT) 0. * dse.c: Use HOST_WIDE_INT_0U instead of (unsigned HOST_WIDE_INT) 0. * simplify-rtx.c: Ditto. * tree-object-size.c: Ditto. From-SVN: r238545
2016-07-19builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1...Uros Bizjak1-12/+12
* builtins.c: Use HOST_WIDE_INT_1 instead of (HOST_WIDE_INT) 1, HOST_WIDE_INT_1U instead of (unsigned HOST_WIDE_INT) 1, HOST_WIDE_INT_M1 instead of (HOST_WIDE_INT) -1 and HOST_WIDE_INT_M1U instead of (unsigned HOST_WIDE_INT) -1. * combine.c: Ditto. * cse.c: Ditto. * dojump.c: Ditto. * double-int.c: Ditto. * dse.c: Ditto. * dwarf2out.c: Ditto. * expmed.c: Ditto. * expr.c: Ditto. * fold-const.c: Ditto. * function.c: Ditto. * fwprop.c: Ditto. * genmodes.c: Ditto. * hwint.c: Ditto. * hwint.h: Ditto. * ifcvt.c: Ditto. * loop-doloop.c: Ditto. * loop-invariant.c: Ditto. * loop-iv.c: Ditto. * match.pd: Ditto. * optabs.c: Ditto. * real.c: Ditto. * reload.c: Ditto. * rtlanal.c: Ditto. * simplify-rtx.c: Ditto. * stor-layout.c: Ditto. * toplev.c: Ditto. * tree-ssa-loop-ivopts.c: Ditto. * tree-vect-generic.c: Ditto. * tree-vect-patterns.c: Ditto. * tree.c: Ditto. * tree.h: Ditto. * ubsan.c: Ditto. * varasm.c: Ditto. * wide-int-print.cc: Ditto. * wide-int.cc: Ditto. * wide-int.h: Ditto. From-SVN: r238481
2016-07-11Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG.Bernd Edlinger1-1/+1
2016-07-11 Bernd Edlinger <bernd.edlinger@hotmail.de> Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG. * tree-core.h (tree_base::nothrow_flag): Adjust comment. (tree_type_common::lang_flag_7): New. (tree_type_common::spare): Reduce size. * tree.h (TYPE_ALIGN_OK): Remove. (TYPE_LANG_FLAG_7): New. (get_inner_reference): Adjust header. * print-tree.c (print_node): Adjust. * expr.c (get_inner_reference): Remove parameter keep_aligning. (get_bit_range, expand_assignment, expand_expr_addr_expr_1): Adjust calls to get_inner_reference. (expand_expr_real_1): Adjust call to get_inner_reference. Remove handling of TYPE_ALIGN_OK. * builtins.c (get_object_alignment_2): Adjust call to get_inner_reference. Remove handling of VIEW_CONVERT_EXPR. * emit-rtl.c (set_mem_attributes_minus_bitpos): Remove handling of TYPE_ALIGN_OK. * asan.c (instrument_derefs): Adjust calls to get_inner_reference. * cfgexpand.c (expand_debug_expr): Likewise. * dbxout.c (dbxout_expand_expr): Likewise. * dwarf2out.c (loc_list_for_address_of_addr_expr_of_indirect_ref, loc_list_from_tree, fortran_common): Likewise. * fold-const.c (optimize_bit_field_compare, decode_field_reference, fold_unary_loc, fold_comparison, split_address_to_core_and_offset): Likewise. * gimple-laddress.c (execute): Likewise. * gimple-ssa-strength-reduction.c (slsr_process_ref): Likewise. * gimplify.c (gimplify_scan_omp_clauses): Likewise. * hsa-gen.c (gen_hsa_addr): Likewise. * simplifx-rtx.c (delegitimize_mem_from_attrs): Likewise. * tsan.c (instrument_expr): Likewise. * ubsan.c (instrument_bool_enum_load, instrument_object_size): Likewise. * tree.c (verify_type_variant): Remove handling of TYPE_ALIGN_OK. * tree-affine.c (tree_to_aff_combination, get_inner_reference_aff): Adjust calls to get_inner_reference. * tree-data-ref.c (split_constant_offset_1, dr_analyze_innermost): Likewise. * tree-scalar-evolution.c (interpret_rhs_expr): Likewise. * tree-sra.c (ipa_sra_check_caller): Likewise. * tree-ssa-loop-ivopts.c (split_address_cost): Likewise. * tree-ssa-math-opts.c (find_bswap_or_nop_load, bswap_replace): Likewise. * tree-vect-data-refs.c (vect_check_gather, vect_analyze_data_refs): Likewise. * config/mips/mips.c (r10k_safe_mem_expr_p): Likewise. * config/pa/pa.c (pa_emit_move_sequence): Remove handling of TYPE_ALIGN_OK. ada: 2016-07-11 Bernd Edlinger <bernd.edlinger@hotmail.de> Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG. * gcc-interface/ada-tree.h (TYPE_ALIGN_OK): Define. * gcc-interface/trans.c (Attribute_to_gnu): Adjust call to get_inner_reference. * gcc-interface/utils2.c (build_unary_op): Likewise. From-SVN: r238210
2016-06-29re PR tree-optimization/68961 (Test case gcc.target/powerpc/pr60203.c fails ↵Richard Biener1-5/+9
since r231674) 2016-06-29 Richard Biener <rguenther@suse.de> PR rtl-optimization/68961 * simplify-rtx.c (simplify_subreg): Handle VEC_CONCAT like CONCAT. From-SVN: r237840
2016-06-07[simplify-rtx] Fix unused variable warning in simplify_cond_clz_ctz on some ↵Kyrylo Tkachov1-3/+4
targets * simplify-rtx.c (simplify_cond_clz_ctz): Delete 'mode' local variable. From-SVN: r237180
2016-06-06[3/3][RTL ifcvt] PR middle-end/37780: Conditional expression with ↵Kyrylo Tkachov1-0/+56
__builtin_clz() should be optimized out PR middle-end/37780 * ifcvt.c (noce_try_ifelse_collapse): New function. Declare prototype. (noce_process_if_block): Call noce_try_ifelse_collapse. * simplify-rtx.c (simplify_cond_clz_ctz): New function. (simplify_ternary_operation): Use the above to simplify conditional CLZ/CTZ expressions. * gcc.c-torture/execute/pr37780.c: New test. * gcc.target/aarch64/pr37780_1.c: Likewise. * gcc.target/arm/pr37780_1.c: Likewise. From-SVN: r237141