+2007-03-16 Sebastian Pop <sebastian.pop@inria.fr>
+
+ PR tree-optimization/31183
+ * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
+ Use double_int instead of unsigned int for representing access_strides.
+ * testsuite/gcc.dg/tree-ssa/pr31183.c: New.
+
+2007-03-16 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31146
+ * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Restructure
+ to allow recursion of forward_propagate_addr_expr.
+ (forward_propagate_addr_into_variable_array_index): Likewise.
+ (forward_propagate_addr_expr): Likewise.
+ (tree_ssa_forward_propagate_single_use_vars): Likewise.
+ (forward_propagate_addr_expr_1): Recurse on simple copies
+ instead of propagating into them. Do so for useless conversions
+ as well.
+ (forward_propagate_addr_expr): Clean up unused statements after
+ recursion.
+
+2007-03-16 Richard Guenther <rguenther@suse.de>
+
+ * builtins.c (expand_builtin_cexpi): Use the right argument
+ for the expansion via cexp.
+
+2007-03-16 Alexandre Oliva <aoliva@redhat.com>
+
+ * configure.ac: Don't require ELF binutils to tolerate # 0 "".
+ * configure: Rebuilt.
+
+2007-03-16 Alexandre Oliva <aoliva@redhat.com>
+
+ PR debug/29906
+ * dwarf2out.c (force_type_die): Adjust comment.
+ (dwarf2out_imported_module_or_decl): Handle base AT_import types.
+
+2007-03-15 DJ Delorie <dj@redhat.com>
+
+ * config/frv/predicates.md (minmax_operator): Don't check operands
+ here.
+
+2007-03-15 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-ssa-loop-niter.c (record_estimate): Add "upper" argument.
+ Update constant estimates of number of iterations.
+ (record_nonwrapping_iv): Add "upper" argument. "data_size_bounds_p"
+ argument renamed to "realistic".
+ (compute_estimated_nb_iterations): Removed.
+ (record_niter_bound): New function.
+ (idx_infer_loop_bounds): For possible but unlikely tail arrays,
+ call record_nonwrapping_iv with upper = false.
+ (infer_loop_bounds_from_signedness): Pass upper argument to
+ record_nonwrapping_iv.
+ (estimate_numbers_of_iterations_loop): Do not call
+ compute_estimated_nb_iterations. Record estimate based on profile
+ information. Initialize the constant estimates of number of
+ iterations.
+ * tree-data-ref.c (estimated_loop_iterations): Return the recorded
+ estimates.
+ * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Add dump when
+ number of iterations is too small.
+ * cfgloop.h (struct nb_iter_bound): Remove "realistic" field.
+ (EST_NOT_AVAILABLE): Removed.
+ (struct loop): Replace estimated_nb_iterations by any_upper_bound,
+ nb_iterations_upper_bound, any_estimate and nb_iterations_estimate
+ fields.
+
+2007-03-15 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-ssa-loop-niter.c (refine_bounds_using_guard, bound_difference):
+ Handle NE_EXPR guards.
+
+2007-03-15 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR c++/24924
+ * c-opts.c (c_common_post_options): Handle C++ post-processing here.
+ Set also -pedantic-errors by default for the preprocessor unless
+ -fpermissive is given.
+
+2007-03-15 Richard Guenther <rguenther@suse.de>
+
+ PR middle-end/29719
+ PR middle-end/31161
+ * builtins.c (expand_builtin_cexpi): As a fallback if we
+ don't have builtins for sincos or cexp create a function
+ declaration for cexp and expand to a call to that.
+ (expand_builtin_int_roundingfn): Always fall
+ back to floor/ceil and its variants even if they may be
+ not available.
+
+2007-03-15 Steven Bosscher <steven@gcc.gnu.org>
+
+ PR middle-end/31159
+ * cfglayout.c (fixup_reorder_chain): Postpone deleting dead
+ jump tables, move the call to delete_dead_jumptables from here...
+ (cfg_layout_finalize): ...to here. But rebuild jump labels first.
+ * cfgrtl.c (cfg_layout_can_merge_blocks_p): When not optimizing,
+ don't allow merging of blocks that try_redirect_by_replacing_jump
+ also does not handle when not optimizing.
+
+2007-03-15 Uros Bizjak <ubizjak@gmail.com>
+ Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+ * config/i386/i386.md (x86_sahf_1): Correctly handle
+ HAVE_AS_IX86_SAHF.
+
+2007-03-15 Uros Bizjak <ubizjak@gmail.com>
+
+ PR target/31167
+ * config/i386/i386.md (*addti3_1, *addti3_1 splitter): Use
+ x86_64_general_operand as operand[2] predicate. Remove "iF"
+ from operand constraints and use "e" constraint instead.
+ (*subti3_1, *subti3_1 splitter): Ditto.
+ (*negti2_1, *negti2_1 splitter): Use nonimmediate_operand as
+ operand[1] predicate.
+
+2007-03-14 Sebastian Pop <sebastian.pop@inria.fr>
+
+ * tree-loop-linear.c (gather_interchange_stats): For multidimensional
+ arrays, multiply the access strides by the size of the sub-array.
+ * testsuite/gcc.dg/tree-ssa/ltrans-5.c: New.
+
+2007-03-14 Uros Bizjak <ubizjak@gmail.com>
+
+ * configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
+ the configured assembler supports the sahf mnemonic.
+ * configure: Regenerate.
+ * config.in: Regenerate.
+
+ * config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
+ emit "sahf" or ".byte\t0x9e" as asm template.
+
+2007-03-14 Michael Meissner <michael.meissner@amd.com>
+
+ PR 31018
+ * config/i386/i386.h (X86_TUNE_SHORTEN_X87_SSE): New tuning
+ option to replace hard coded TARGET_xxx in md file.
+ (X86_TUNE_AVOID_VECTOR_DECODE): Ditto.
+ (X86_TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
+ (X86_TUNE_SLOW_IMUL_IMM8): Ditto.
+ (X86_TUNE_MOVE_M1_VIA_OR): Ditto.
+ (X86_TUNE_NOT_UNPAIRABLE): Ditto.
+ (X86_TUNE_NOT_VECTORMODE): Ditto.
+ (TUNE_SHORTEN_X87_SSE): Use new tuning option.
+ (TUNE_AVOID_VECTOR_DECODE): Ditto.
+ (TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
+ (TUNE_SLOW_IMUL_IMM8): Ditto.
+ (TUNE_MOVE_M1_VIA_OR): Ditto.
+ (TUNE_NOT_UNPAIRABLE): Ditto.
+ (TUNE_NOT_VECTORMODE): Ditto.
+
+ * config/i386/i386.c (ix86_tune_features): Fill in new tuning
+ options.
+
+ * config/i386/i386.md (fix_trunc?f?1_sse peephole2): Use new
+ tuning options instead of hard coded TARGET_xxx.
+ (fix ssemode peephole2's): Ditto.
+ (imul peephole2's): Ditto.
+ (movsi_or): Ditto.
+ (movdi_or_rex64): Ditto.
+ (move peephole2): Ditto.
+ (not peephole2's): Ditto.
+
+2007-03-14 Dirk Mueller <dmueller@suse.de>
+
+ * c-common.h (empty_body_warning): Rename to empty_if_body_warning.
+ * c-common.c (empty_if_body_warning): Rephrase diagnostic message.
+ * c-parser.c (c_parser_if_body): Always add an empty statement in case
+ of empty body.
+ * c-parser.c (c_parser_do_statement): Warn about empty body in
+ do/while statement.
+ * c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
+ * doc/invoke.texi (-Wempty-body): Update documentation.
+
+2007-03-14 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR c/21438
+ * c-common.h (warn_for_div_by_zero): Declare.
+ * c-common.c (warn_for_div_by_zero): Define.
+ * c-typeck.c (build_binary_op): Call warn_for_div_zero instead of
+ warning.
+
+2007-03-14 Richard Sandiford <richard@codesourcery.com>
+
+ * Makefile.in (PREPROCESSOR_DEFINES): Add directory terminators
+ to PREFIX and STANDARD_PREFIX.
+
+2007-03-14 Richard Sandiford <richard@codesourcery.com>
+ Phil Edwards <phil@codesourcery.com>
+
+ * gthr-vxworks.h: Add an extern "C" wrapper for C++.
+ (__gthread_once_t): Remove busy field for RTPs.
+ (__GTHREAD_ONCE_INIT): Update accordingly.
+
+2007-03-14 Richard Sandiford <richard@codesourcery.com>
+
+ * doc/invoke.texi: Document VxWorks options.
+
+2007-03-14 Uros Bizjak <ubizjak@gmail.com>
+
+ * doc/invoke.texi (i386 and x86-64 Options): Clarify -msahf option.
+
+2007-03-13 Seongbae Park <seongbae.park@gmail.com>
+
+ PR tree-optimization/30590
+ * tree-nrv.c (tree_nrv): Check for the partial update of the
+ return value.
+
+2007-03-13 Alexandre Oliva <aoliva@redhat.com>
+
+ * flags.h (flag_random_seed): Remove declaration, in favor of...
+ * toplev.h (get_random_seed, set_random_seed): ... these.
+ * tree.c (get_file_function_name): Use the former.
+ * opts.c (common_handle_option): Use the latter.
+ * toplev.c
+
+2007-03-13 Steven Bosscher <steven@gcc.gnu.org>
+
+ PR middle-end/31127
+ * cse.c (cse_find_path): Do not bail out if a basic block that
+ we already visited now becomes part of a path that starts at a
+ different basic block. Just disallow this, to make sure we
+ visit each basic block at most once.
+
+2007-03-13 Jan Hubicka <jh@suse.cz>
+
+ * ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
+ when profile esitmate is present, calls with very low frequency are
+ cold.
+
+2007-03-13 Zdenek Dvorak <dvorakz@suse.cz>
+
+ PR tree-optimization/30730
+ PR tree-optimization/26900
+ * tree-ssa-loop-niter.c: Include gmp.h.
+ (bounds): New type.
+ (mpz_set_double_int, get_type_bounds, mpz_to_double_int,
+ split_to_var_and_offset, determine_value_range,
+ bound_difference_of_offsetted_base, refine_bounds_using_guard,
+ bound_difference, bounds_add, bounds_negate,
+ number_of_iterations_ne_max, dump_affine_iv): New functions.
+ (number_of_iterations_ne, number_of_iterations_lt_to_ne,
+ assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the
+ difference of initial and final value of control iv to validate
+ results.
+ (number_of_iterations_cond): Add loop parameter. Determine bounds
+ on the difference of the extremes of the control iv. Add dumps.
+ (expand_simple_operations): Handle phi nodes.
+ (simplify_using_initial_conditions): Do not record used conditions.
+ (number_of_iterations_exit): Pass loop to number_of_iterations_cond.
+ Do not set additional_info.
+ (implies_nonnegative_p, implies_ge_p): Removed.
+ (derive_constant_upper_bound): Do not use parameter `additional'.
+ (record_estimate): Parameter `additional' removed. Parameter
+ `i_bound' added. Do not call derive_constant_upper_bound.
+ (record_nonwrapping_iv): Use derive_constant_upper_bound to
+ bound the number of iterations estimate.
+ (estimate_numbers_of_iterations_loop): Pass the estimate from
+ the number of iterations analysis to record_estimate.
+ * tree.h (multiple_of_p): Declare.
+ * tree-scalar-evolution.c (expression_expensive_p): Removed.
+ (scev_const_prop): Do not check expression_expensive_p.
+ * fold-const.c (multiple_of_p): Exported.
+ * double-int.c (double_int_mask): Exported.
+ * double-int.h (double_int_mask): Declare.
+ * tree-flow.h (struct tree_niter_desc): Removed additional_info
+ field. Added max field.
+
+2007-03-13 David Taylor <taylor@candd.org>
+
+ PR driver/12448:
+ * gcc.c (cpp_unique_options): If -MT or -MQ is seen, don't pass
+ default -MQ.
+
+2007-03-13 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ PR target/31123
+ * pa.md (vdepi_ior): Don't allow zero length deposit. Likewise for
+ two unamed patterns.
+
+2007-03-13 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.opt (mcx16, msahf): New options.
+ * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
+ (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.
+
+ * config/i386/driver-i386.c (bit_LAHF_LM): New define.
+ (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
+ Output -mcx16 and -msahf options when corresponding bit is set.
+
+ * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
+ and -msahf options.
+
+2007-03-13 Alexandre Oliva <aoliva@redhat.com>
+
+ * configure.ac: Test for assembler tolerance to # 0 "".
+ * configure, config.in: Rebuilt.
+ * final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.
+
+2007-03-13 Geoffrey Keating <geoffk@apple.com>
+
+ * doc/invoke.texi (Spec Files): Update for '%{,' spec.
+
+ * config/rs6000/darwin-fallback.c: Compile file only on powerpc.
+ (handle_syscall): Handle direct system calls.
+ * config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.
+
+2007-03-12 Brooks Moses <brooks.moses@codesourcery.com>
+
+ * doc/invoke.texi: Fix cpp.info cross-reference.
+ * doc/passes.texi: Fix gcc.info cross-reference.
+
+2007-03-12 Zdenek Dvorak <dvorakz@suse.cz>
+
+ PR tree-optimization/30835
+ * lambda-code.c (can_convert_to_perfect_nest): Check whether
+ bb_for_stmt is not NULL before accessing it.
+
+2007-03-12 Joseph Myers <joseph@codesourcery.com>
+
+ * gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
+ some multilibs.
+
+2007-03-12 Brooks Moses <brooks.moses@codesourcery.com>
+
+ PR 30635
+ * doc/install.texi: Document --enable-stage1-languages
+
+2007-03-12 Steven Bosscher <steven@gcc.gnu.org>
+
+ * tree-pass.h (pass_into_cfg_layout_mode,
+ pass_outof_cfg_layout_mode): Declare.
+ * cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
+ pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
+ * passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
+ (pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.
+
+2007-03-12 Seongbae Park <seongbae.park@gmail.com>
+
+ * c-decl.c (warn_variable_length_array): New function.
+ Refactored from grokdeclarator to handle warn_vla
+ and handle unnamed array case.
+ (grokdeclarator): Refactored VLA warning case.
+ * c.opt (Wvla): New flag.
+ * doc/invoke.texi (Wvla): New warning.
+
+2007-03-12 Richard Henderson <rth@redhat.com>
+
+ * config/alpha/alpha.c (alpha_elf_section_type_flags): New.
+ (TARGET_SECTION_TYPE_FLAGS): New.
+
+2007-03-12 Richard Henderson <rth@redhat.com>
+
+ * config/darwin.c (machopic_reloc_rw_mask): New.
+ * config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
+ * config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.
+
+2007-03-12 Mark Mitchell <mark@codesourcery.com>
+
+ * cppdefault.c (cpp_EXEC_PREFIX): New variable.
+ * cppdefault.h (cpp_PREFIX): Document.
+ (cpp_PREFIX_len): Likewise.
+ (cpp_EXEC_PREFIX): New variable.
+ * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
+ * c-incpath.c (add_standard_paths): Correct logic for relocating
+ paths within prefix.
+
+2007-03-12 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
+ fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
+ mode macro.
+ (fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
+ fix_truncdfdi_sse using SSEMODEF mode macro.
+ (fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
+ fix_truncdfsi_sse using SSEMODEF mode macro.
+ (fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
+ (fix_trunc?f?i_sse K8 peephole2): Fix register constraint.
+
+2007-03-12 Richard Sandiford <richard@codesourcery.com>
+
+ * config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
+ elfos.h to tm_file.
+
+2007-03-12 Olga Golovanevsky <olga@il.ibm.com>
+
+ * tree.h : Add multiple_of_p declaration.
+ * fold-const.c (multiple_of_p): Make multiple_of_p public.
+ * ipa-type-escape.c (results_of_malloc): Redundant.
+ (visited_stmts): New. Visited stmt for walk_use_def_chains.
+ (cast_type): Extended with new members.
+ (check_cast): Returns cast_type.
+ (cast): New structure for data of walk_use_def_chains.
+ (is_malloc_result, is_cast_from_non_pointer_1,
+ is_cast_from_non_pointer,
+ is_array_access_through_pointer_and_index): New functions.
+ (look_for_casts): Returns cast types.
+ (check_call): Returns void.
+ (okay_pointer_operation): Use support of pointer plus index,
+ pointer plus constant and allow all multiplications.
+
2007-03-11 Richard Guenther <rguenther@suse.de>
PR tree-optimization/31115
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