+2011-01-22 Jan Hubicka <jh@suse.cz>
+
+ PR tree-optimization/43884
+ PR lto/44334
+ * predict.c (maybe_hot_frequency_p): Use entry block frequency as an base.
+ * doc/invoke.texi (hot-bb-frequency-fraction): Update docs.
+
+2011-01-22 Anatoly Sokolov <aesok@post.ru>
+
+ * config/s390/s390.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
+ * config/s390/s390.c (s390_register_move_cost,
+ s390_memory_move_cost): New.
+ (TARGET_REGISTER_MOVE_COST, TARGET_MEMORY_MOVE_COST): Define.
+
+2011-01-22 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
+
+ PR middle-end/47401
+ * except.c (sjlj_assign_call_site_values): Move setting the
+ crtl->uses_eh_lsda flag to ...
+ (sjlj_mark_call_sites): ... here.
+ (sjlj_emit_function_enter): Support NULL dispatch label.
+ (sjlj_build_landing_pads): In a function with no landing pads
+ that still has must-not-throw regions, generate code to register
+ a personality function with empty LSDA.
+
+2011-01-21 Richard Henderson <rth@redhat.com>
+
+ * config/rx/rx.c (TARGET_FLAGS_REGNUM): New.
+
+ * config/mn10300/mn10300.c (TARGET_FLAGS_REGNUM): New.
+
+ * compare-elim.c: New file.
+ * Makefile.in (OBJS-common): Add it.
+ (compare-elim.o): New.
+ * common.opt (fcompare-elim): New.
+ * opts.c (default_options_table): Add OPT_fcompare_elim.
+ * tree-pass.h (pass_compare_elim_after_reload): New.
+ * passes.c (init_optimization_passes): Add it.
+ * recog.h: Protect against re-inclusion.
+ * target.def (TARGET_FLAGS_REGNUM): New POD hook.
+ * doc/invoke.texi (-fcompare-elim): Document it.
+ * doc/tm.texi.in (TARGET_FLAGS_REGNUM): Document it.
+ * doc/tm.texi: Rebuild.
+
+2011-01-22 Nick Clifton <nickc@redhat.com>
+
+ * config/rx/rx.md (cstoresf4): Pass comparison operator to
+ rx_split_fp_compare.
+
+2011-01-22 Nick Clifton <nickc@redhat.com>
+
+ * config/rx/rx.md (UNSPEC_CONST): New.
+ (deallocate_and_return): Wrap the amount popped off the stack in
+ an UNSPEC_CONST in order to stop it being rejected by
+ -mmax-constant-size.
+ (pop_and_return): Add a "(return)" rtx.
+ (call): Drop the immediate operand.
+ (call_internal): Likewise.
+ (call_value): Likewise.
+ (call_value_internal): Likewise.
+ (sibcall_internal): Likewise.
+ (sibcall_value_internal): Likewise.
+ (sibcall): Likewise. Generate an explicit call using
+ sibcall_internal.
+ (sibcall_value): Likewise.
+ (mov<>): FAIL if a constant operand is not legitimate.
+ (addsi3_unpsec): New pattern.
+
+ * config/rx/rx.c (rx_print_operand_address): Handle UNPSEC
+ CONSTs.
+ (ok_for_max_constant): New function.
+ (gen_safe_add): New function.
+ (rx_expand_prologue): Use gen_safe_add.
+ (rx_expand_epilogue): Likewise.
+ (rx_is_legitimate_constant): Use ok_for_max_constant. Handle
+ UNSPEC CONSTs.
+
+2011-01-21 Jeff Law <law@redhat.com>
+
+ PR tree-optimization/47053
+ * tree-ssa-dse.c (need_eh_cleanup): New bitmap.
+ (dse_optimize_stmt): Set the appropriate bit in NEED_EH_CLEANUP when
+ statements are deleted.
+ (tree_ssa_dse): Allocate & free NEED_EH_CLEANUP. If NEED_EH_CLEANUP
+ is nonempty, then purge dead edges and cleanup the CFG.
+
+2011-01-21 Alexandre Oliva <aoliva@redhat.com>
+
+ PR debug/47402
+ Temporarily revert:
+ 2011-01-21 Alexandre Oliva <aoliva@redhat.com>
+ PR debug/47106
+ * tree-dfa.c (create_var_ann): Mark variable as used.
+
+2011-01-21 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/45566
+ * except.c (convert_to_eh_region_ranges): Emit queued no-region
+ notes from other section in hot/cold partitioning even if
+ last_action is -3. Increment call_site_base.
+
+ PR rtl-optimization/47366
+ * fwprop.c (forward_propagate_into): Return bool. If
+ any changes are made, -fnon-call-exceptions is used and
+ REG_EH_REGION note is present, call purge_dead_edges
+ and return true if it purged anything.
+ (fwprop_addr): Adjust callers, call cleanup_cfg (0) if
+ any EH edges were purged.
+
+2011-01-21 Jeff Law <law@redhat.com>
+
+ PR rtl-optimization/41619
+ * caller-save.c (setup_save_areas): Break out code to determine
+ which hard regs are live across calls by examining the reload chains
+ so that it is always used.
+ Eliminate code which checked REG_N_CALLS_CROSSED.
+
+2011-01-21 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/47355
+ * tree-eh.c (cleanup_empty_eh_merge_phis): Give up if
+ NOP has non-debug uses beyond PHIs in new_bb.
+
+2011-01-21 Alexandre Oliva <aoliva@redhat.com>
+
+ PR debug/47106
+ * cfgexpand.c (account_used_vars_for_block): Only account vars
+ that are annotated as used.
+ (estimated_stack_frame_size): Don't set TREE_USED.
+ * tree-dfa.c (create_var_ann): Mark variable as used.
+
+2011-01-21 Richard Guenther <rguenther@suse.de>
+
+ PR middle-end/47395
+ * tree.def (WIDEN_MULT_MINUS_EXPR): Fix printed name.
+
+2011-01-21 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/47365
+ * tree-ssa-sccvn.h (vn_lookup_kind): Declare.
+ (vn_reference_lookup_pieces): Adjust.
+ (vn_reference_lookup): Likewise.
+ * tree-ssa-sccvn.c (vn_walk_kind): New static global.
+ (vn_reference_lookup_3): Only look through kills if in
+ VN_WALKREWRITE mode.
+ (vn_reference_lookup_pieces): Adjust.
+ (vn_reference_lookup): Likewise.
+ (visit_reference_op_load): Likewise.
+ (visit_reference_op_store): Likewise.
+ * tree-ssa-pre.c (phi_translate_1): Use VN_WALK mode.
+ (compute_avail): Likewise.
+ (eliminate): Likewise.
+
+2011-01-21 Jakub Jelinek <jakub@redhat.com>
+
+ * tree-ssa-live.c (remove_unused_scope_block_p): Don't remove
+ DECL_IGNORED_P non-reg vars if they are used.
+
+ PR tree-optimization/47391
+ * varpool.c (const_value_known_p): Return false if
+ decl is volatile.
+
+2011-01-21 Kai Tietz <kai.tietz@onevision.com>
+
+ PR bootstrap/47215
+ * config/i386/i386.c (ix86_local_alignment): Handle
+ case for va_list_type_node is nil.
+ (ix86_canonical_va_list_type): Likewise.
+
2011-01-21 Alan Modra <amodra@gmail.com>
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Add
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