+2010-04-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
+ (Specific, *-*-solaris2*): Likewise.
+ Don't prefer Sun as over GNU as.
+
+2010-04-08 Wolfgang Gellerich <gellerich@de.ibm.com>
+
+ * config/s390/s390.c (override_options): Adjust the z10
+ defaults for max-unroll-times, max-completely-peeled-insns
+ and max-completely-peel-times.
+
+2010-04-08 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+
+ * config/s390/s390.c (s390_expand_movmem): Issue prefetch
+ instructions for z10.
+ (s390_expand_setmem): Likewise.
+ (s390_expand_cmpmem): Likewise.
+
+2010-04-08 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/43679
+ * tree-ssa-pre.c (eliminate): Only propagate copies.
+
+2010-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ PR bootstrap/43681
+ * expr.c (block_move_libcall_safe_for_call_parm): Avoid
+ set but not used variable warning.
+
+2010-04-08 Wei Guozhi <carrot@google.com>
+
+ PR target/41653
+ * config/arm/arm.c (thumb1_size_rtx_costs): New function.
+ (arm_size_rtx_costs): Call the new function when optimized for size.
+
+2010-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ PR debug/43670
+ * cfgexpand.c (expand_debug_expr): If for non-NULL offset
+ op0 is not a MEM, just return NULL instead of assertion
+ failure.
+ (discover_nonconstant_array_refs): Don't walk debug stmts.
+
+2010-04-08 Doug Kwan <dougkwan@google.com>
+
+ * configure.ac: Recognize gold and do not use its version number
+ to test ld features.
+ * configure: Regenerate.
+
+2010-04-08 Maxim Kuvyrkov <maxim@codesourcery.com>
+
+ PR middle-end/40815
+ * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
+ (negate_value): Move code to push elements to broken_up_substracts ...
+ (eliminate_plus_minus_pair): ... here. Push operands that have no
+ negative pair to plus_negates.
+ (repropagate_negates, init_reassoc, fini_reassoc): Update.
+
+2010-04-07 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * doc/install.texi (Configuration): Move description of
+ --enable-lto, --with-libelf*, --enable-gold from Java section to
+ general section.
+
+ * doc/generic.texi (Working with declarations)
+ (Function Properties, C and C++ Trees): Fix typos.
+ * doc/sourcebuild.texi (Top Level): Likewise.
+
+2010-04-07 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/18624
+ * tree.h (DECL_READ_P): Define.
+ (struct tree_decl_common): Add decl_read_flag.
+ * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
+ a set but not used warning.
+ (merge_decls): Merge DECL_READ_P flag.
+ (finish_decl, build_compound_literal): Set DECL_READ_P flag.
+ (finish_function): Issue -Wunused-but-set-parameter diagnostics.
+ * c-common.c (handle_used_attribute, handle_unused_attribute):
+ Likewise.
+ * c-tree.h (default_function_array_read_conversion, mark_exp_read):
+ New prototypes.
+ * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
+ New functions.
+ (default_conversion, c_process_expr_stmt): Call mark_exp_read.
+ * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
+ c_parser_binary_expression, c_parser_cast_expression,
+ c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
+ Call default_function_array_read_conversion instead of
+ default_function_array_conversion where needed.
+ (c_parser_unary_expression, c_parser_conditional_expression,
+ c_parser_postfix_expression_after_primary, c_parser_initelt):
+ Likewise. Call mark_exp_read where needed.
+ (c_parser_statement_after_labels, c_parser_asm_operands,
+ c_parser_typeof_specifier, c_parser_sizeof_expression,
+ c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
+ where needed.
+ * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
+ New.
+ * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
+ (warn_unused_but_set_parameter): Default to warn_unused
+ && extra_warnings.
+ * doc/invoke.texi: Document -Wunused-but-set-variable and
+ -Wunused-but-set-parameter.
+
+ * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
+ used count variable.
+ * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
+ when operandN variables aren't used in the body of the expander
+ or splitter.
+ * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
+ FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
+ * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
+ * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
+ FOR_EACH_IMM_USE_ON_STMT): Likewise.
+ * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
+ * tree.c (PROCESS_ARG): Likewise.
+
+2010-04-07 Simon Baldwin <simonb@google.com>
+
+ * diagnostic.h (diagnostic_override_option_index): New macro to
+ set a diagnostic's option_index.
+ * c-tree.h (c_cpp_error): Add warning reason argument.
+ * opts.c (_warning_as_error_callback): New.
+ (register_warning_as_error_callback): Store callback for
+ warnings enabled via enable_warning_as_error.
+ (enable_warning_as_error): Call callback, minor code tidy.
+ * opts.h (register_warning_as_error_callback): Declare.
+ * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
+ response to -Werror=.
+ (c_common_init_options): Register warning_as_error_callback in opts.c.
+ * common.opt: Add -Wno-cpp option.
+ * c-common.c (struct reason_option_codes_t): Map cpp warning
+ reason codes to gcc option indexes.
+ * (c_option_controlling_cpp_error): New function, lookup the gcc
+ option index for a cpp warning reason code.
+ * (c_cpp_error): Add warning reason argument, call
+ c_option_controlling_cpp_error for diagnostic_override_option_index.
+ * doc/invoke.texi: Document -Wno-cpp.
+
+2010-04-07 Richard Guenther <rguenther@suse.de>
+
+ * ipa-reference.c (mark_load): Use get_base_address.
+ (mark_store): Likewise.
+
+ * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
+ inserting GIMPLE_NOPs into the IL.
+ * tree-ssa-structalias.c (get_constraint_for_component_ref):
+ Explicitly strip handled components and indirect references.
+
+ * fold-const.c (fold_unary_loc): Do not strip qualifiers when
+ folding address expressions.
+ * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
+ * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
+ operand_equal_p to compare decls.
+ (ptr_deref_may_alias_decl_p): Likewise.
+ * tree-ssa-operands.c (get_asm_expr_operands): Simplify
+ * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
+ Handle reversed comparison ops.
+ * tree-sra.c (asm_visit_addr): Use get_base_address.
+ * ipa-prop.c (visit_store_addr_for_mod_analysis): Use
+ get_base_address.
+ * ipa-reference.c (mark_address): Use get_base_address.
+
+2010-04-07 Richard Guenther <rguenther@suse.de>
+
+ * tree-ssa-forwprop.c (forward_propagate_addr_expr):
+ Propagate constants everywhere.
+
2010-04-07 Jakub Jelinek <jakub@redhat.com>
PR debug/43516
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