* cfgloopmanip.c (copy_loop_info): New function.
(duplicate_loop): Use it.
(loop_version): Use it.
* loop-unswitch.c (unswitch_loop): Use it.
* cfgloop.h (copy_loop_info): Declare.
From-SVN: r192543
* tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Add edge_to_cancel
parameter and use it to estimate code optimized out in the final iteration.
(loop_edge_to_cancel): New function.
(try_unroll_loop_completely): New IRRED_IVALIDATED parameter;
handle unrolling loops with bounds given via max_loop_iteratins;
handle unrolling non-inner loops when code size shrinks;
tidy dump output; when the last iteration loop still stays
as loop in the CFG forcongly redirect the latch to
__builtin_unreachable.
(canonicalize_loop_induction_variables): Add irred_invlaidated
parameter; record niter bound derrived; dump
max_loop_iterations bounds; call try_unroll_loop_completely
even if no niter bound is given.
(canonicalize_induction_variables): Handle irred_invalidated.
(tree_unroll_loops_completely): Handle non-innermost loops;
handle irred_invalidated.
* cfgloop.h (unlop): Declare.
* cfgloopmanip.c (unloop): Export.
* tree.c (build_common_builtin_nodes): Build BULTIN_UNREACHABLE.
* gcc.target/i386/l_fma_float_?.c: Update.
* gcc.target/i386/l_fma_double_?.c: Update.
* gfortran.dg/do_1.f90: XFAIL
* gcc.dg/tree-ssa/cunroll-1.c: New testcase.
* gcc.dg/tree-ssa/cunroll-2.c: New testcase.
* gcc.dg/tree-ssa/cunroll-3.c: New testcase.
* gcc.dg/tree-ssa/cunroll-4.c: New testcase.
* gcc.dg/tree-ssa/cunroll-5.c: New testcase.
* gcc.dg/tree-ssa/ldist-17.c: Block cunroll to make testcase still
valid.
From-SVN: r192538
2012-10-17 Richard Biener <rguenther@suse.de>
* tree-streamer-out.c (write_ts_decl_common_tree_pointers):
Do not write TREE_CHAIN of PARM_DECLs.
(write_ts_decl_non_common_tree_pointers): Instead stream
the DECL_ARGUMENTS chain.
* tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
Do not read TREE_CHAIN of PARM_DECLs.
(lto_input_ts_decl_non_common_tree_pointes): Instead read
the DECL_ARGUMENTS as chain.
From-SVN: r192529
* df-problems.c (df_kill_notes): Split up in two functions.
(df_remove_dead_and_unused_notes): New function, first half of
df_kill notes to remove all REG_DEAD and REG_UNUSED notes.
(df_remove_dead_eq_notes): New function, second half of df_kill_notes
to remove REG_EQUAL and REG_EQUIV notes referring to dead registers.
(df_note_bb_compute): Call df_remove_dead_and_unused_notes instead
of df_kill_notes. Call df_remove_dead_eq_notes after processing insn.
* web.c (web): Re-add DF_RD_PRUNE_DEAD_DEFS;
From-SVN: r192526
PR rtl-optimization/54870
* tree.h (TREE_ADDRESSABLE): Document special usage on SSA_NAME.
* cfgexpand.c (update_alias_info_with_stack_vars ): Set it on the
SSA_NAME pointer that points to a partition if there is at least
one variable with it set in the partition.
* dse.c (local_variable_can_escape): New predicate.
(can_escape): Call it.
* gimplify.c (mark_addressable): If this is a partitioned decl, also
mark the SSA_NAME pointer that points to a partition.
From-SVN: r192517
* expr.c (move_by_pieces, move_by_pieces_ninsns, can_store_by_pieces)
(store_by_pieces_1): Don't enter loop when no more data is left.
From-SVN: r192514
2012-10-16 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/53063
PR c/40989
* doc/options.texi (EnabledBy): Document new form.
* optc-gen.awk: Handle new form of EnabledBy.
* common.opt (Wunused-but-set-parameter): Use EnabledBy.
(Wunused-parameter): Likewise.
* opts.c (finish_options): Do not handle them explicitly.
* opt-functions.awk (search_var_name): New.
From-SVN: r192503
2012-10-16 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/53063
PR c/40989
gcc/
* optc-gen.awk: Handle new form of LangEnabledBy.
* opts.c (set_Wstrict_aliasing): Declare here. Make static.
* common.opt (Wstrict-aliasing=,Wstrict-overflow=): Do not use Init.
* doc/options.texi (LangEnabledBy): Document new form.
* flags.h (set_Wstrict_aliasing): Do not declare.
c-family/
* c.opt (Wstrict-aliasing=,Wstrict-overflow=): Use LangEnabledBy.
* c-opts.c (c_common_handle_option): Do not set them here. Add
comment.
(c_common_post_options): Likewise.
testsuite/
* gcc.dg/Wstrict-overflow-24.c: New.
From-SVN: r192502
* reload.c (find_reloads_subreg_address): Remove FORCE_REPLACE
parameter. Always replace normal subreg with memory reference
whenever possible. Return NULL otherwise.
(find_reloads_toplev): Always call find_reloads_subreg_address
for subregs of registers equivalent to a memory location.
Only recurse further if find_reloads_subreg_address fails.
(find_reloads_address_1): Only call find_reloads_subreg_address
for subregs of registers equivalent to a memory location.
Properly handle failure of find_reloads_subreg_address.
From-SVN: r192499
PR debug/54796
* rtl.h: Document jump flag on VALUE.
* cselib.h (cselib_set_value_sp_based,
cselib_sp_based_value_p): New prototypes.
* alias.c (find_base_term): For cselib_sp_based_value_p
return static_reg_base_value[STACK_POINTER_REGNUM].
* cselib.c (SP_BASED_VALUE_P): Define.
(cselib_set_value_sp_based, cselib_sp_based_value_p): New functions.
* var-tracking.c (add_stores): Call cselib_set_value_sp_based
for not yet preserved VALUEs of sp on sp assignments if
hard_frame_pointer_adjustment != -1.
(vt_initialize): When setting hard_frame_pointer_adjustment,
disassociate sp from its previous value and call
cselib_set_value_sp_based on a new VALUE created for sp.
* gcc.dg/guality/pr54796.c: New test.
From-SVN: r192494
PR tree-optimization/54889
* tree-vect-stmts.c (vectorizable_load): Add VIEW_CONVERT_EXPR if
ARRAY_REF newref doesn't have compatible type with vectype element
type, use vectype element type for MEM_REF.
* gfortran.dg/pr54889.f90: New test.
From-SVN: r192493
* c-ada-spec.c (ADA_HOST_WIDE_INT_PRINT_DOUBLE_HEX): Define.
(dump_generic_ada_node) <INTEGER_CST>: Deal with sizetype specially.
Remove POINTER_TYPE handling, add large unsigned handling and use
ADA_HOST_WIDE_INT_PRINT_DOUBLE_HEX for big numbers.
From-SVN: r192489
2012-10-15 Easwaran Raman <eraman@google.com>
* optabs.c (emit_cmp_and_jump_insn_1): Add a new parameter to
specificy the probability of taking the jump.
(emit_cmp_and_jump_insns): Likewise.
(expand_compare_and_swap_loop): Make the jump predicted not taken.
* dojump.c (do_compare_rtx_and_jump): Remove the code attaching
REG_BR_PROB note and pass probability to emit_cmp_and_jump_insns.
* cfgbuild.c (compute_outgoing_frequencies): Do not guess outgoing
probabilities for branches with more than two successors.
* expr.c (emit_block_move_via_loop): Predict the loop backedge loop
to be highly taken.
(try_casesi): Pass the probability of jumping to the default label.
(try_tablejump): Likewise.
(do_tablejump): Likewise.
* expr.h (try_tablejump): Add a new parameter.
(try_casesi): Likewise.
(emit_cmp_and_jump_insns): Add probability as default parameter with a
default value of -1.
* except.c (sjlj_emit_function_enter): Pass probability to
emit_cmp_and_jump_insns.
* stmt.c (case_node): Add new fields PROB and SUBTREE_PROB.
(do_jump_if_equal): Pass probability for REG_BR_PROB note.
(add_case_node): Pass estimated probability of jumping to the case
label.
(emit_case_decision_tree): Pass default_prob to emit_case_nodes.
(get_outgoing_edge_probs): New function.
(conditional_probability): Likewise.
(reset_out_edges_aux): Likewise.
(compute_cases_per_edge): Likewise.
(emit_case_dispatch_table): Update probabilities of edges coming out
of the switch statement.
(expand_case): Compute and propagate default edge probability to
emit_case_dispatch_table.
(expand_sjlj_dispatch_table): Update calls to add_case_node and
emit_case_dispatch_table.
(balance_case_nodes): Update subtree_prob values.
(emit_case_nodes): Compute edge probabilities and add pass them to
emit_cmp_and_jump_insns.
testsuite/ChangeLog:
2012-10-15 Easwaran Raman <eraman@google.com>
* gcc.dg/tree-prof/switch-case-1.c: New test case.
* gcc.dg/tree-prof/switch-case-2.c: New test case.
From-SVN: r192488
PR target/51244
* config/sh/sh-protos.h (set_of_reg): New struct.
(sh_find_set_of_reg, sh_is_logical_t_store_expr,
sh_try_omit_signzero_extend): Declare...
* config/sh/sh.c (sh_find_set_of_reg, sh_is_logical_t_store_expr,
sh_try_omit_signzero_extend): ...these new functions.
* config/sh/sh.md (*logical_op_t): New insn_and_split.
(*zero_extend<mode>si2_compact): Use sh_try_omit_signzero_extend
in splitter.
(*extend<mode>si2_compact_reg): Convert to insn_and_split.
Use sh_try_omit_signzero_extend in splitter.
(*mov<mode>_reg_reg): Disallow t_reg_operand as operand 1.
(*cbranch_t): Rewrite combine part in splitter using new
sh_find_set_of_reg function.
PR target/51244
* gcc.target/sh/pr51244-17.c: New.
From-SVN: r192481
PR target/54760
* config/sh/sh.c (sh_find_base_reg_disp): Stop searching insns when
hitting a call insn if GBR is marked as call used.
* config/sh/iterators.md (QIHISIDI): New mode iterator.
* config/sh/predicates.md (gbr_address_mem): New predicate.
* config/sh/sh.md (*movdi_gbr_load, *movdi_gbr_store): New
insn_and_split.
Use QIHISIDI instead of QIHISI in unnamed GBR addressing splits.
PR target/54760
* gcc.target/sh/pr54760-2.c: Add long long and unsigned long long test
functions.
* gcc.target/sh/pr54760-4.c: New.
From-SVN: r192480
* config/i386/sse.md (UNSPEC_MOVU): Remove.
(UNSPEC_LOADU): New.
(UNSPEC_STOREU): Ditto.
(<sse>_movu<ssemodesuffix><avxsizesuffix>): Split to ...
(<sse>_loadu<ssemodesuffix><avxsizesuffix>): ... this and ...
(<sse>_storeu<ssemodesuffix><avxsizesuffix>) ... this.
(<sse2>_movdqu<avxsizesuffix>): Split to ...
(<sse2>_loaddqu<avxsizesuffix>): ... this and ...
(<sse2>_storedqu<avxsizesuffix>): ... this.
(*sse4_2_pcmpestr_unaligned): Update.
(*sse4_2_pcmpistr_unaligned): Ditto.
* config/i386/i386.c (ix86_avx256_split_vector_move_misalign): Use
gen_avx_load{dqu,ups,upd}256 to load from unaligned memory and
gen_avx_store{dqu,ups,upd}256 to store to unaligned memory.
(ix86_expand_vector_move_misalign): Use gen_sse_loadups or
gen_sse2_load{dqu,upd} to load from unaligned memory and
gen_sse_loadups or gen_sse2_store{dqu,upd}256 to store to
unaligned memory.
(struct builtin_description bdesc_spec) <IX86_BUILTIN_LOADUPS>:
Use CODE_FOR_sse_loadups.
<IX86_BUILTIN_LOADUPD>: Use CODE_FOR_sse2_loadupd.
<IX86_BUILTIN_LOADDQU>: Use CODE_FOR_sse2_loaddqu.
<IX86_BUILTIN_STOREUPS>: Use CODE_FOR_sse_storeups.
<IX86_BUILTIN_STOREUPD>: Use CODE_FOR_sse2_storeupd.
<IX86_BUILTIN_STOREDQU>: Use CODE_FOR_sse2_storedqu.
<IX86_BUILTIN_LOADUPS256>: Use CODE_FOR_avx_loadups256.
<IX86_BUILTIN_LOADUPD256>: Use CODE_FOR_avx_loadupd256.
<IX86_BUILTIN_LOADDQU256>: Use CODE_FOR_avx_loaddqu256.
<IX86_BUILTIN_STOREUPS256>: Use CODE_FOR_avx_storeups256.
<IX86_BUILTIN_STOREUPD256>: Use CODE_FOR_avx_storeupd256.
<IX86_BUILTIN_STOREDQU256>: Use CODE_FOR_avx_storedqu256.
testsuite/ChangeLog:
* gcc.target/i386/avx256-unaligned-load-1.c: Update asm scan patterns.
* gcc.target/i386/avx256-unaligned-load-2.c: Ditto.
* gcc.target/i386/avx256-unaligned-load-3.c: Ditto.
* gcc.target/i386/avx256-unaligned-load-4.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-1.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-2.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-3.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-4.c: Ditto.
From-SVN: r192468
* genoutput.c (process_template): Process '*' in '@' alternatives.
* doc/md.texi (node Output Statement): Provide example for the above.
From-SVN: r192457
