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PR target/31110
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 05ece07..b284077 100644 (file)
@@ -1,7 +1,400 @@
+2008-03-28  Nick Clifton  <nickc@redhat.com>
+
+       * config/mn10300/mn10300.c (mn10300_secondary_reload_class):
+        Return GENERAL_REGS for stack adjustment reloads.
+
+2008-03-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+       PR target/31334
+       * config/rs6000/rs6000.c (rs6000_expand_vector_init): Create a
+       const_vector when all the vectors are constant.
+
+2008-03-27  Bob Wilson  <bob.wilson@acm.org>
+
+       * config/xtensa/xtensa.c (gen_float_relational): Handle unordered
+       comparisons.
+       * config/xtensa/xtensa.md (any_cond): Add unordered comparisons.
+       (any_scc_sf): Add uneq, unlt, unle and unordered operators.
+       (scc_sf): New.
+       (s<code>_sf): Use new scc_sf attribute for opcode names.
+
+2008-03-27  Tom Tromey  <tromey@redhat.com>
+
+       * doc/sourcebuild.texi, doc/install.texi, configure, aclocal.m4,
+       configure.ac, Makefile.in, config/t-darwin, config/m32c/t-m32c,
+       config/spu/t-spu-elf, config/i386/t-interix,
+       config/i386/t-cygming, config/i386/x-i386, config/i386/t-cygwin,
+       config/i386/x-darwin, config/i386/x-mingw32,
+       config/i386/t-netware, config/i386/x-cygwin, config/i386/t-nwld,
+       config/sh/t-sh, config/sh/t-symbian, config/x-linux,
+       config/t-sol2, config/x-hpux, config/x-darwin, config/ia64/t-ia64,
+       config/x-solaris, config/t-vxworks, config/m68k/t-uclinux,
+       config/rs6000/x-rs6000, config/rs6000/x-darwin64,
+       config/rs6000/x-darwin, config/rs6000/t-rs6000,
+       config/score/t-score-elf, config/arm/t-strongarm-pe,
+       config/arm/t-pe, config/arm/t-arm, config/arm/t-wince-pe,
+       config/v850/t-v850, config/v850/t-v850e, config/bfin/t-bfin-linux:
+       Revert automatic dependency patch.
+
+2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR target/35657
+       * config/i386/i386.c (ix86_function_arg_boundary): Align
+       decimal floating point to its natural boundary.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/35716
+       * fold-const.c (fold_comparison): Restrict distinct decl
+       comparison folding to VAR_DECLs and PARM_DECLs.  Do not
+       solely rely on operand_equal_p.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR c/32511
+       * c-common.c (handle_weak_attribute): Reject combination of
+       weak and inline.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/32810
+       * tree-ssa-ccp.c (get_symbol_constant_value): Strip useless
+       conversions from DECL_INITIAL.
+       (fold_const_aggregate_ref): Likewise from constructor elements.
+
+2008-03-27  Zdenek Dvorak  <ook@ucw.cz>
+
+       * tree-affine.h (aff_combination_expand): Declare.
+       (get_inner_reference_aff): Likewise.
+       * tree-affine.c (aff_combination_expand): Split out from
+       tree_to_aff_combination_expand.
+       (get_inner_reference_aff): New function.
+       * tree-parloops.c (loop_parallel_p): Free vectorizer info.
+        * tree-ssa-loop-im.c: Include tree-affine.h and pointer-set.h.
+        (struct lim_aux_data): sm_done field removed.
+        (mem_ref_loc_p, mem_ref_locs_p): New types.
+        (struct mem_ref): Added id, stored, accesses_in_loop,
+        indep_loop, dep_loop, indep_ref, dep_ref fields.
+        Removed is_stored, locs and next fields.
+        (memory_accesses): New variable.
+        (movement_possibility): Do not allow moving statements
+        that store to memory.
+        (outermost_indep_loop, simple_mem_ref_in_stmt, mem_ref_in_stmt):
+        New functions.
+        (determine_max_movement): For statements with memory references,
+        find the outermost loop in that the reference is independent.
+        (move_computations_stmt): Mark the virtual operands for
+        renaming.
+        (memref_free, mem_ref_alloc, mem_ref_locs_alloc, mark_ref_stored,
+        gather_mem_refs_stmt, gather_mem_refs_in_loops, vtoe_hash, vtoe_eq,
+        vtoe_free, record_vop_access, get_vop_accesses, get_vop_stores,
+        add_vop_ref_mapping, create_vop_ref_mapping_loop,
+        create_vop_ref_mapping, analyze_memory_references,
+        cannot_overlap_p, mem_refs_may_alias_p, rewrite_mem_ref_loc,
+        get_all_locs_in_loop, ref_always_accessed_p,
+        refs_independent_p, record_indep_loop, ref_indep_loop_p_1,
+        ref_indep_loop_p, can_sm_ref_p, find_refs_for_sm,
+        store_motion_loop, store_motion): New functions.
+        (struct vop_to_refs_elt): New type.
+        (record_mem_ref_loc, free_mem_ref_locs, rewrite_mem_refs,
+        memref_hash, memref_eq, hoist_memory_references): Rewritten.
+        (schedule_sm): Replaced by...
+        (execute_sm): ... this.
+        (determine_lsm_ref, hoist_memory_references,
+        loop_suitable_for_sm, gather_mem_refs_stmt, gather_mem_refs,
+        find_more_ref_vops, free_mem_ref, free_mem_refs,
+        determine_lsm_loop, determine_lsm): Removed.
+        (tree_ssa_lim_finalize): Free data structures used by store
+        motion.
+        (tree_ssa_lim): Call analyze_memory_references.  Use
+        store_motion instead of determine_lsm.
+
+2008-03-27  Paolo Bonzini  <bonzini@gnu.org>
+
+       * config.cc (m68hc11, m6811, m68hc12, m6812): Add usegas.h,
+       rename tmake_file to m68hc11/t-m68hc11.
+       (mcore): Set inhibit_libc to true.
+       * config.host (alpha*-dec-*vms*): Set extra_programs.
+       (interix3*): Don't use host_xmake_file.
+       * configure.ac: Let config.gcc override inhibit_libc.
+       * configure: Regenerate.
+
+       * config/alpha/x-vms (EXTRA_PROGRAMS): Remove.
+       * config/t-openbsd-thread: Remove commented out lines.
+       
+       * config/x-interix: Remove.
+
+       * config/m68hc11/t-m68hc11-gas: Rename to...
+       * config/m68hc11/t-m68hc11: ... this.  Remove T_CPPFLAGS.
+
+       * config/mcore/t-mcore: Remove T_CFLAGS.
+       * config/mcore/t-mcore-pe: Likewise.
+
+2008-03-27  Paolo Bonzini  <bonzini@gnu.org>
+
+       * configure.ac: Replace custom __GNU_SOURCE test with
+       AC_USE_SYSTEM_EXTENSIONS.  Move it earlier.
+       * aclocal.m4: Regenerate.
+       * configure: Regenerate.
+       * config.in: Regenerate.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of decls
+       that bind locally or of constants.  Consolidate address folding code.
+       * tree-vrp.c (operand_less_p): Deal with non-INTEGER_CST
+       results from fold_binary_to_constant.
+       (compare_values_warnv): Likewise.
+
+2008-03-27  Andrew Pinski  <pinskia@gmail.com>
+
+       PR middle-end/35429
+       * fold-const.c (fold_truthop): Check for integeral types when folding
+       a == 0 && b == 0 and a != 0 || b != 0 .
+
+2008-03-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * tree.c (get_unwidened): Remove code fiddling with COMPONENT_REF.
+
+2008-03-26  Andreas Schwab  <schwab@suse.de>
+
+       * doc/invoke.texi: Fix use of @item vs. @itemx.
+
+2008-03-26  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (build/gensupport.o, build/print-rtl.o,
+       build/read-rtl.o, build/rtl.o, build/gencondmd.o, build/genattr.o,
+       build/genattrtab.o, build/genautomata.o, build/gencheck.o,
+       build/gencodes.o, build/genconditions.o, build/genconfig.o,
+       build/genconstants.o, build/genemit.o, build/genextract.o,
+       build/genflags.o, build/genmddeps.o, build/genopinit.o,
+       build/genoutput.o, build/genpeep.o, build/genrecog.o): Depend on
+       options.h.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       Revert
+       2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of two decls
+       that bind locally.  Consolidate address folding code.
+
+2008-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+       * builtins.c (expand_builtin_pow, fold_builtin_cabs,
+       fold_builtin_sqrt, fold_builtin_cbrt, fold_builtin_logarithm,
+       fold_builtin_hypot, fold_builtin_pow): Remove uses of dconst3,
+       dconstsqrt2, dconstthird, dconste and/or dconst10.
+       * config/i386/i386.c (ix86_emit_swsqrtsf): Likewise.
+       * emit-rtl.c (dconst3, dconst10, dconstm2, dconstthird,
+       dconstsqrt2, dconste): Delete.
+       (init_emit_once): Likewise.  Simplify initializing dconstm1.
+       Constify variable.
+       * real.c (get_real_const): New.
+       * real.h (dconst3, dconst10, dconstm2, dconstthird,
+       dconstsqrt2, dconste): Delete.
+       (real_value_const, get_real_const): New.
+
+2008-03-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/i386/cygming.h (BIGGEST_ALIGNMENT): Removed.
+
+       * config/i386/i386.c (ix86_function_arg_boundary): Check
+       BIGGEST_ALIGNMENT instead of 128.
+       (setup_incoming_varargs_64): Likewise.
+
+2008-03-26  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (DEPFILES): Add missing '/'.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of two decls
+       that bind locally.  Consolidate address folding code.
+
+2008-03-26  Nick Clifton  <nickc@redhat.com>
+
+       PR target/31232
+       * config/stormy16/stormy16.c (xstormy16_legitimate_address_p): Do
+       not allow INT+INT as a legitimate addressing mode.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * tree-flow.h (widen_bitfield): Remove declaration.
+       * tree-ssa-ccp.c (visit_assignment): Remove unneeded code.
+       (widen_bitfield): Remove function.
+       * tree-ssa-dom.c (record_equivalences_from_stmt): Remove unneeded
+       code.
+
+2008-03-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+       PR target/31558
+       * config/rs6000/rs6000-c.c (rs6000_builtin_type_compatible): Handle
+       error_mark_node's.
+
+2008-03-25  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+       PR rtl-optimization/35232
+       * reload1.c (reg_reloaded_call_part_clobbered): Clarify comment.
+       (forget_old_reloads_1, forget_marked_reloads): Don't clear
+       reg_reloaded_call_part_clobbered here.
+       (reload_regs_reach_end_p): New function.
+       (reload_reg_rtx_for_input): New variable.
+       (reload_reg_rtx_for_output): Likewise.
+       (emit_input_reload_insns): Use reloadreg rather than rl->reg_rtx
+       when reassigning a pseudo register.  Load reloadreg from 
+       reload_reg_rtx_for_input, moving the mode and register
+       calculation to...
+       (do_input_reload): ...here.  Use the mode-adjusted reg_rtx
+       instead of the original when deciding whether an input reload
+       would be a no-op or whether an output reload can be deleted.
+       (emit_output_reload_insns): Use the mode-adjusted reg_rtx
+       when setting up new_spill_reg_store.  Load it from
+       reload_reg_rtx_for_output, moving the mode and register
+       calculation to...
+       (do_output_reload): ...here.  Use the mode-adjusted reg_rtx
+       instead of the original when deciding whether an output reload
+       would be a no-op.  Do the same when modifying insn notes.
+       Use rtx_equal_p instead of == to compare the registers.
+       (inherit_piecemeal_p): Take a mode and two register numbers
+       as argument.
+       (emit_reload_insns): Clear new_spill_reg_store for every hard
+       register in the reload register.  Remove spill registers
+       from reg_reloaded_valid before considering whether to record
+       inheritance information for them.  Use reload_reg_rtx_for_output
+       instead of reg_rtx when recording output reloads.  Use
+       reload_reg_rtx_for_input instead of reg_rtx when recording
+       input reloads.  Set or clear reg_reloaded_call_part_clobbered
+       at the same time as setting reg_reloaded_valid.
+       (delete_output_reload): Add a new_reload_reg parameter and use it
+       instead of rld[j].reg_rtx.
+       (emit_input_reload_insns, do_input_reload, do_output_reload): Adjust
+       calls accordingly.
+
+2008-03-25  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (build/gensupport.o): Depend on insn-modes.h.
+       (build/genattr.o): Likewise.
+       (build/genattrtab.o): Likewise.
+       (build/gencodes.o): Likewise.
+       (build/genconfig.o): Likewise.
+       (build/genconstants.o): Likewise.
+       (build/genemit.o): Likewise.
+       (build/genextract.o): Likewise.
+       (build/genflags.o): Likewise.
+
+2008-03-25  Bob Wilson  <bob.wilson@acm.org>
+       
+       * config/xtensa/xtensa.c (xtensa_va_start): Use build_int_cst
+       instead of size_int for integer types.
+       (xtensa_gimplify_va_arg_expr): Likewise.  Convert index to sizetype
+       to match type of MINUS_EXPR.
+       
+2008-03-25  Tom Tromey  <tromey@redhat.com>
+
+       * configure: Rebuilt.
+       * configure.ac (BUILD_DEPMODE): Extract CCDEPMODE from temporary
+       Makefile.
+
+2008-03-25  Tom Tromey  <tromey@redhat.com>
+
+       * config/x-solaris (host-solaris.o): Update.
+       * config/x-linux (host-linux.o): Update.
+       * config/x-hpux (host-hpux.o): Update.
+       * config/x-darwin (host-darwin.o): Update.
+       * config/v850/t-v850e (v850-c.o): Update.
+       * config/v850/t-v850 (v850-c.o): Update.
+       * config/t-vxworks (vxworks.o): Update.
+       * config/t-sol2 (sol2-c.o, sol2.o): Update.
+       * config/t-darwin (darwin.o, darwin-c.o, darwin-driver.o): Update.
+       * config/spu/t-spu-elf (spu-c.o): Update.
+       (spu.o): Remove.
+       * config/sh/t-symbian (sh-c.o): Update.
+       (symbian.o): Update.
+       * config/sh/t-sh (sh-c.o): Update.
+       * config/score/t-score-elf (score7.o, score3.o): Update.
+       * config/rs6000/x-rs6000 (driver-rs6000.o): Update.
+       * config/rs6000/x-darwin64 (host-ppc64-darwin.o): Update.
+       * config/rs6000/x-darwin (host-ppc-darwin.o): Update.
+       * config/rs6000/t-rs6000 (rs6000-c.o): Update.
+       (rs6000.o): Remove.
+       * config/m68k/t-uclinux (generated_files): Add sysroot-suffix.h.
+       * config/m32c/t-m32c (m32c-pragma.o): Update.
+       * config/ia64/t-ia64 (ia64-c.o): Update.
+       * config/i386/x-mingw32 (host-mingw32.o): Update.
+       * config/i386/x-i386 (driver-i386.o): Update.
+       * config/i386/x-darwin (host-i386-darwin.o): Update.
+       * config/i386/x-cygwin (host-cygwin.o): Update.
+       * config/i386/t-nwld (nwld.o): Update.
+       * config/i386/t-netware (netware.o): Update.
+       * config/i386/t-interix (winnt.o): Update.
+       * config/i386/t-cygwin (cygwin1.o, cygwin2.o): Update.
+       * config/i386/t-cygming (winnt.o, winnt-cxx.o, winnt-stubs.o,
+       msformat-c.o): Update.
+       * config/bfin/t-bfin-linux (generated_files): Add
+       linux-sysroot-suffix.h.
+       * config/arm/t-wince-pe (pe.o): Update.
+       * config/arm/t-strongarm-pe (pe.o): Update.
+       * config/arm/t-pe (pe.o): Update.
+       * config/arm/t-arm (arm-c.o): Update.
+       * doc/install.texi (Prerequisites): Require make 3.80.
+       * Makefile.in: Remove .o targets.
+       (CCDEPMODE, DEPDIR, depcomp, BUILD_DEPMODE): New variables.
+       (OBSTACK_H, FIBHEAP_H, PARTITION_H, MD5_H, BCONFIG_H): Remove.
+       (simple_generated_h, simple_generated_c): Move earlier.
+       (generated_files): New variable.
+       (TARGET_H, MACHMODE_H, HOOKS_H, HOSTHOOKS_DEF_H, LANGHOOKS_DEF_H,
+       TARGET_DEF_H, RTL_BASE_H, RTL_H, PARAMS_H, BUILTINS_DEF, TREE_H,
+       BASIC_BLOCK_H, GCOV_IO_H, COVERAGE_H, DEMANGLE_H, RECOG_H,
+       ALIAS_H, EMIT_RTL_H, FLAGS_H, FUNCTION_H, EXPR_H, OPTABS_H,
+       REGS_H, RA_H, RESOURCE_H, SCHED_INT_H, INTEGRATE_H, CFGLAYOUT_H,
+       CFGLOOP_H, IPA_UTILS_H, IPA_REFERENCE_H, IPA_TYPE_ESCAPE_H,
+       CGRAPH_H, DF_H, RESOURCE_H, DDG_H, GCC_H, GGC_H, TIMEVAR_H,
+       INSN_ATTR_H, C_COMMON_H, C_PRAGMA_H, C_TREE_H, SYSTEM_H,
+       PREDICT_H, DECNUM_H, MKDEPS_H, SYMTAB_H, TREE_DUMP_H,
+       TREE_GIMPLE_H, TREE_FLOW_H, TREE_SSA_LIVE_H, PRETTY_PRINT_H,
+       DIAGNOSTIC_H, C_PRETTY_PRINT_H, SCEV_H, LAMBDA_H, TREE_DATA_REF_H,
+       VARRAY_H, TREE_INLINE_H, REAL_H, DBGCNT_H, EBIMAP_H): Remove.
+       (.c.o): Remove.
+       (COMPILE.base, COMPILE): New variables.
+       (%.o): New pattern rule.
+       (ALL_HOST_OBJS): New variable.
+       (xgcc$(exeext), cpp$(exeext)): Remove extra version.o.
+       (dummy-checksum.o, cc1-checksum.o): Remove.
+       (DRIVER_SHLIB): New variable.
+       (DRIVER_DEFINES): Use it.
+       (gencondmd.c): Move out of build/.
+       (s-conditions): Update.
+       (BUILDCOMPILE.base, BUILDCOMPILE): New variables.
+       (ALL_BUILD_OBJS): Likewise.
+       (build/%.o): Use BUILDCOMPILE.
+       (build/ggc-none.o, build/ggc-none.o, build/min-insn-modes.o,
+       build/print-rtl.o, build/read-rtl.o, build/rtl.o, build/vec.o,
+       build/gencondmd.o, build/genattrtab.o, build/genautomata.o,
+       build/gencheck.o, build/gencodes.o, build/genconditions.o,
+       build/genconfig.o, build/genconstants.o, build/genemit.o,
+       build/genextract.o, build/genflags.o, build/genmddeps.o,
+       build/genopinit.o, build/genoutput.o, build/genpeep.o,
+       build/genpreds.o, build/genrecog.o, build/gcov-iov.o,
+       build/gen-protos.o, build/scan.o, build/fix-header.o,
+       build/scan-decls.o): Simplify.
+       (collect2.o, c-opts.o, gcc.o, gccspec.o, gcc-options.o,
+       cppdefault.o, protoize.o, unprotoize.o, intl.o, version.o,
+       prefix.o, toplev.o): Reduce to variable setting.
+       (libbackend.o): Use COMPILE.  Remove most dependencies.  Move later.
+       ($(out_object_file), gcc-options.o): New targets.
+       ($(ALL_HOST_OBJS)): New target.  Include dependency files.
+       * configure: Rebuilt.
+       * configure.ac: Call ZW_CREATE_DEPDIR, ZW_PROG_COMPILER_DEPENDENCIES.
+       * doc/sourcebuild.texi (Front End Directory): Document new variable.
+
 2008-03-25  Douglas Gregor  <doug.gregor@gmail.com>
 
-       * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
-       complain when we hit an error, return ERROR_MARK_NODE.
+       * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
+       complain when we hit an error, return ERROR_MARK_NODE.
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
-       * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if
-       possible.
+       * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if possible.
        * config/sh/sh.md (xorsi3_movrt, movrt): New insns.
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
        * config/sh/constraints.md (I28): New constraint.
        * config/sh/sh.c (broken_move): Add support for movi20s.
-       * config/sh/sh.md (movsi_ie): Add the alternative for
-       movi20s.
+       * config/sh/sh.md (movsi_ie): Add the alternative for movi20s.
 
 2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
            Jayant Sonar  <Jayant.sonar@kpitcummins.com>
 2008-03-19  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/35609
-       * tree-ssa.c (always_executed): New global flag.
-       (warn_uninitialized_var): If !always_executed warn with "maybe"
+       * tree-ssa.c (walk_data): New structure.
+       (warn_uninitialized_var): If not always_executed warn with "maybe"
        instead of "is".
        (execute_early_warn_uninitialized): Compute post-dominators.
        Initialize always_executed before processing each basic block.