[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2005-01-15  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix52.h (CPLUSPLUS_CPP_SPEC): Revert previous change.

2005-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR ada/19388
        * pa.c (pa_asm_output_aligned_common): Warn if specified alignment
        exceeds maximum alignment for global common data.
        * pa64-hpux.h (MAX_OFILE_ALIGNMENT): Define to 32768.
        * som.h (MAX_OFILE_ALIGNMENT): Likewise.

2004-01-15  Roger Sayle  <roger@eyesopen.com>

        * tree-ssa-dom.c (extract_range_from_cond): Correct condition.

2004-01-15  Roger Sayle  <roger@eyesopen.com>

        * harg-reg-set.h (reg_class_names): Prototype global array.
        * regclass.c (reg_class_names): Declare here and initialize to
        REG_CLASS_NAMES.
        (dump_regclass): Remove local declaration of reg_class_names.
        (regclass): Likewise.
        * cfg.c (dump_flow_info): Likewise.
        * ra-debug.c (reg_class_names): Likewise.
        * regrename.c (reg_class_names): Likewise.
        * reload.c (reg_class_names): Likewise.
        * reload1.c (spill_failure): Likewise.
        * config/m68hc11/m68hc11.c (reg_class_names): Likewise.

2005-01-15  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("reload_outti"): Remove predicate for
        output operand.  Abort if operand is not a MEM.
        ("reload_outdi", "reload_outdf"): Likewise.

2005-01-15  Marc Espie  <espie@openbsd.org>

        * config.gcc (*-*-openbsd*): Set HAS_LIBC_R for OpenBSD <= 3.2.
        (i[34567]86-*-openbsd*): Switch to ELF for OpenBSD >= 3.4.
        * config/openbsd.h:  Fix C++ includes for native configurations.
        Add proper OS_CPP_BUILTINS.  Fix libspec for recent OpenBSD.
        Add trampoline support.
        * config/i386/openbsdelf.h: New.

2005-01-15  Marc Espie  <espie@openbsd.org>

        * collect2.c (main): Explicitly parse -dynamic-linker option.

2005-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/19060
        * tree-ssa-dom.c (extract_range_from_cond) <case LT_EXPR, GT_EXPR>:
        Return 0 if op1 <= TYPE_MIN_VALUE () resp. op1 >= TYPE_MAX_VALUE ().
        (simplify_cond_and_lookup_avail_expr): Add assert for dummy == 0
        and handle extract_range_from_cond returning false.
        * fold-const.c (fold): Optimize comparisons with min/max even for
        width > HOST_BITS_PER_WIDE_INT.

2005-01-15  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/mips/rtems.h (MIPS_DEFAULT_GVALUE): Set to 0.
        * config/mips/t-rtems (MULTILIBS_DIRNAMES,MULTILIB_OPTIONS): 
        Remove little endian multilib variants.
        Add mips32 multilib variant.

2005-01-15  Kazu Hirata  <kazu@cs.umass.edu>

        * explow.c (copy_all_reg, stabilize): Remove.
        * expr.h: Remove the corresponding prototypes.

        * rtlanal.c (regs_set_between_p): Remove.
        * rtl.h: Remove the corresponding prototype.

2005-01-14  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6k_nonimmediate_operand): Rename
        to rs6000_nonimmediate_operand.
        * config/rs6000/rs6000.h (PREDICATE_CODES): Rename
        rs6k_nonimmediate_operand to rs6000_nonimmediate_operand.
        * config/rs6000/rs6000.md (movsi_internal1): Rename predicate to
        rs6000_nonimmediate_operand.
        * config/rs6000/spe.md (movdf_e500_double): Rename predicate to
        rs6000_nonimmediate_operand.

2005-01-14  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa-alias.c (pass_may_alias): Add TODO_verify_stmts.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.h (CLASS_MAX_NREGS): DF goes in 1 register
        on e500v2.
        (CANNOT_CHANGE_MODE_CLASS): Restrict DI mode changes on e500v2.
        (PREDICATE_CODES): Add rs6k_nonimmediate_operand.

        * config/rs6000/rs6000.c (invalid_e500_subreg): New.
        (rs6k_nonimmediate_operand): New.
        (rs6000_legitimate_offset_address_p): Handle DI modes on e500v2
        correctly.
        (legitimate_lo_sum_address_p): Same.
        (rs6000_legitimize_address): Same.
        (rs6000_legitimize_reload_address): Same.
        (rs6000_legitimate_address): Same.
        (spe_build_register_parallel): Pass DF and DC modes in a DI
        register.

        * config/rs6000/rs6000.md ("*movsi_internal1"): Change predicate
        to rs6k_nonimmediate_operand.

        * config/rs6000/spe.md ("*frob_df_di"): New.
        ("*frob_di_df"): New.
        ("*frob_di_df_2"): New.
        ("*mov_sidf_e500_subreg0"): New.
        ("*mov_sidf_e500_subreg4"): New.
        ("*movdf_e500_double"): Change predicate to
        rs6k_nonimmediate_operand.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * postreload.c (move2add_note_store): Only call
        trunc_int_for_mode on scalar integers.

2005-01-14  Steven Bosscher  <stevenb@suse.de>

        * tree-ssa-dce.c (visited_control_parents): New sbitmap to
        replace BB_VISITED uses.
        (find_obviously_necessary_stmts): Don't clear BB_VISITED.
        (propagate_necessity): Check the bitmap instead of BB_VISITED.
        (tree_dce_done): Free visited_control_parents.
        (perform_tree_ssa_dce): Allocate and clear it.
        * tree-ssa-pre.c (compute_antic_aux): Make non-recursive.
        (compute_antic): Iterate from here using a DFS.  Use an sbitmap
        instead of BB_VISITED.

2005-01-14  Kazu Hirata  <kazu@cs.umass.edu>

        * c-tree.h, coverage.h, langhooks-def.h, optabs.h, output.h,
        rtl.h, targhooks.h, tree-flow.h, tree-mudflap.h, tree.h:
        Remove unused prototypes.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Fix caching of SPE
        64-bit register usage.
        (spe_func_has_64bit_regs_p): Add FIXME note.

2005-01-14  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_generate_compare): Replace
        flag_finite_math_only with flag_unsafe_math_optimizations.

2005-01-14  J. D. Johnston  <jjohnst@us.ibm.com>

        * config/s390/tpf-unwind.h (s390_fallback_frame_state): Correct
        end-of-stack check.
        (__tpf_eh_return): Copy TPF private stack area from the module
        boundary stack frame.  Add check for when module addresses are
        equal, but no stub address is found.

2005-01-14  Richard Earnshaw  <rearnsha@arm.com>

        PR target/7525
        * arm.h (struct machine_function): Add call_via field.
        (thumb_call_via_label): Declare.
        * arm.c (thumb_call_via_label): New variable.
        (thumb_call_reg_needed): New variable.
        (arm_output_function_epilogue): For Thumb code, output any per-function
        call-indirect trampolines.
        (thumb_call_via_reg): New function.
        (arm_file_end): New function.
        (TARGET_ASM_FILE_END): Call arm_file_end.
        (aof_file_end): Likewise.
        * arm-protos.h (thumb_call_via_reg): Declare.
        * arm.md (call_reg_thumb, call_value_reg_thumb): Call 
        thumb_call_via_reg in normal case.

2005-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/19084
        PR rtl-optimization/19348
        * recog.c (peephole2_optimize): Do global life update if some peephole
        decides it doesn't need at least one of its inputs and that change
        influences liveness at the start of the basic block.

        * basic-block.h (EXECUTE_IF_AND_COMPL_IN_REG_SET): Needs 2 REGSET
        arguments instead of 1.

2005-01-14  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR middle-end/18820
        * varasm.c (initializer_constant_valid_p) <ADDR_EXPR>: Return
        zero for nested functions needing a static chain or functions
        with a non-constant address.

2005-01-13  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation) <AND>: Optimize
        (and (sign_extend X) C) into (zero_extend (and X C)).

2005-01-13  David O'Brien  <obrien@FreeBSD.org>

        * config/freebsd-spec.h:  Make KSE pthread lib logic the default.

2005-01-13  Richard Henderson  <rth@redhat.com>

        PR target/19009
        PR target/19250
        PR target/19252
        * config/i386/i386.md (cmpdf, cmpsf, bunordered, bordered, buneq,
        bunge, bungt, bunle, bunlt, bltgt): Enable for TARGET_SSE_MATH,
        not just TARGET_SSE.
        (cmpfp_i_387): Rename from cmpfp_i.  Move after sse patterns.
        (cmpfp_i_mixed): Rename from cmpfp_i_sse; use for TARGET_MIX_SSE_I387.
        (cmpfp_i_sse): Rename from cmpfp_i_sse_only; use for TARGET_SSE_MATH.
        (cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387): Similarly.
        (fp_jcc_1_mixed, fp_jcc_1_sse, fp_jcc_1_387): Similarly.
        (fp_jcc_2_mixed, fp_jcc_2_sse, fp_jcc_2_387): Similarly.
        (fp_jcc_3_387, fp_jcc_4_387, fp_jcc_5_387, fp_jcc_6_387,
        fp_jcc_7_387, fp_jcc_8_387): Rename from fp_jcc_N.
        (movdicc_c_rex64): Rename with '*'.
        (movsfcc, movdfcc): Add checks for 387 and sse math to condition.
        (movsfcc_1_sse_min, movsfcc_1_sse_max, movsfcc_1_sse): New.
        (movsfcc_1_387): Rename from movsfcc_1.
        (movdfcc_1_sse_min, movdfcc_1_sse_max, movdfcc_1_sse): New.
        (movdfcc_1, movdfcc_1_rex64): Add check for 387.
        (sminsf3, smaxsf3, smindf3, smaxdf3): New.
        (minsf3, minsf, minsf_nonieee, minsf_sse, mindf3, mindf,
        mindf_nonieee, mindf_sse, maxsf3, maxsf, maxsf_nonieee, maxsf_sse,
        maxdf3, maxdf, maxdf_nonieee, maxdf_sse, sse_movsfcc, sse_movsfcc_eq,
        sse_movdfcc, sse_movdfcc_eq, sse_movsfcc_const0_1,
        sse_movsfcc_const0_2, sse_movsfcc_const0_3, sse_movsfcc_const0_4,
        sse_movdfcc_const0_1, sse_movdfcc_const0_2, sse_movdfcc_const0_3,
        sse_movdfcc_const0_4): Remove.
        * config/i386/i386.c (ix86_expand_fp_movcc): For TARGET_SSE_MATH,
        recognize min/max early.  Update for changed sse cmove patterns.
        (ix86_split_sse_movcc): New.
        * config/i386/i386-protos.h: Update.

2005-01-13  Steven Bosscher  <stevenb@suse.de>

        * tree-ssa-dse.c (fix_phi_uses): Use SSA operand iterators.
        (fix_stmt_v_may_defs): Likewise.

2005-01-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_fp_absneg_operator): Use elt_mode
        for converting the mask.

2005-01-13  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix52.h (CPLUSPLUS_CPP_SPEC): Change _XOPEN_SOURCE
        definition to 600.

2005-01-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (IX86_BUILTIN_MOVQ, IX86_BUILTIN_LOADD,
        IX86_BUILTIN_STORED, IX86_BUILTIN_MOVQ2DQ,
        IX86_BUILTIN_MOVDQ2Q): Remove.
        (IX86_BUILTIN_VEC_EXT_V4SI): New.
        (ix86_init_mmx_sse_builtins, ix86_expand_builtin): Update to match.
        (ix86_expand_vector_extract): For V4S[FI], extract element 0 after 
        shuffling.
        * config/i386/sse.md (sse_concatv2sf): Accept zero operand 2.
        (sse2_pextrw): Fix immediate constraint.
        (sse2_loadq, sse2_loadq_rex64): Remove.
        * config/i386/emmintrin.h (_mm_cvtsi128_si32, _mm_cvtsi128_si64x):
        Use __builtin_ia32_vec_ext_<size>.
        (_mm_cvtsi32_si128, _mm_cvtsi64x_si128): Use _mm_set_epi<size>.

2005-01-13  Aldy Hernandez  <aldyh@redhat.com>

        * function.c (assign_parm_setup_block): Look inside original
        entry_parm when inspecting PARALLEL.

2005-01-13  Ralf Corsepius  <ralf.corsepius@rtems.org>
            Joel Sherrill  <joel@oarcorp.com>

        PR target/19399
        * gthr-rtems.h (__gthread_recursive_mutex_t): New type.
        (__GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION): Define to
        rtems_gxx_recursive_mutex_init.
        (__gthread_recursive_mutex_lock): New function.
        (__gthread_recursive_mutex_trylock): Likewise.
        (__gthread_recursive_mutex_unlock): Likewise.

2005-01-13  Ralf Corsepius <ralf.corsepius@rtems.org>

        * config/i386/t-rtems-i386: Multilib on -mtune instead of -mcpu.

2005-01-13  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.md (ashlti3, ashlti3_internal): New.
        (ashrti3_internal): Indicate output is early clobber. Generate result
        into output rather than first input. Use move for low word of output
        if shift count is exactly 64.
        (lshrti3_internal): Likewise.

2005-01-13  Hans-Peter Nilsson  <hp@bitrange.com>

        PR target/18329
        PR target/18330
        * reload1.c (delete_output_reload): Don't delete an output reload
        if the pseudo lives longer than a single basic block.  Adjust and
        improve wording of comment.

2005-01-12  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/19334
        * config/darwin.c (machopic_select_section): Use TYPE_SIZE_UNIT instead
        of TYPE_SIZE where we mean the number of bytes.

2005-01-12  Aldy Hernandez  <aldyh@redhat.com>

        * function.c (assign_parm_setup_block): Relax condition on
        multi-register optimization.

2005-01-12  Nick Clifton  <nickc@redhat.com>

        * config/sh/sh.md (udivsi3_sh2a, divsi3_sh2a): Give these patterns
        an "in_delay_slot" attribute of "no" to prevent them being used in
        delay slots.  This is forbidden because they might generate
        exceptions.

2005-01-12  Alan Modra  <amodra@bigpond.net.au>

        PR target/19389
        * config/rs6000/rs6000.md (movtf_internal): Replace r->o and m->r
        with r->Y and Y->r.

2005-01-12  Nick Clifton  <nickc@redhat.com>

        * config/iq2000/iq2000.h (ASM_SPEC): Undefine (to stop -Qy being
        passed on to GAS) but do not define, as GAS no longer supports or
        needs the -m2000 option.

2005-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_fabs): Convert argument to the appropriate
        type as args of unprototyped builtins aren't automatically promoted.
        (fold_builtin_abs): Likewise.

2005-01-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * Makefile.in: Set a `build-warn' variable.

2005-01-11  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/17949
        * tree-ssa-loop-ivopts.c (may_be_unaligned_p): New function.
        (find_interesting_uses_address): Use it.

2005-01-11  Aldy Hernandez  <aldyh@redhat.com>

        * regrename.c (kill_value): Handle subreg's that won't simplify.

2005-01-11  Richard Henderson  <rth@redhat.com>

        PR target/13366
        * config/i386/i386.h (enum ix86_builtins): Move ...
        * config/i386/i386.c: ... here.
        (IX86_BUILTIN_MOVDDUP, IX86_BUILTIN_MMX_ZERO, IX86_BUILTIN_PEXTRW,
        IX86_BUILTIN_PINSRW, IX86_BUILTIN_LOADAPS, IX86_BUILTIN_LOADSS,
        IX86_BUILTIN_STORESS, IX86_BUILTIN_SSE_ZERO, IX86_BUILTIN_PEXTRW128,
        IX86_BUILTIN_PINSRW128, IX86_BUILTIN_LOADAPD, IX86_BUILTIN_LOADSD,
        IX86_BUILTIN_STOREAPD, IX86_BUILTIN_STORESD,  IX86_BUILTIN_STOREHPD,
        IX86_BUILTIN_STORELPD, IX86_BUILTIN_SETPD1, IX86_BUILTIN_SETPD,
        IX86_BUILTIN_CLRPD, IX86_BUILTIN_LOADPD1, IX86_BUILTIN_LOADRPD,
        IX86_BUILTIN_STOREPD1, IX86_BUILTIN_STORERPD, IX86_BUILTIN_LOADDQA,
        IX86_BUILTIN_STOREDQA, IX86_BUILTIN_CLRTI,
        IX86_BUILTIN_LOADDDUP): Remove.
        (IX86_BUILTIN_VEC_INIT_V2SI, IX86_BUILTIN_VEC_INIT_V4HI,
        IX86_BUILTIN_VEC_INIT_V8QI, IX86_BUILTIN_VEC_EXT_V2DF,
        IX86_BUILTIN_VEC_EXT_V2DI, IX86_BUILTIN_VEC_EXT_V4SF,
        IX86_BUILTIN_VEC_EXT_V8HI, IX86_BUILTIN_VEC_EXT_V4HI,
        IX86_BUILTIN_VEC_SET_V8HI, IX86_BUILTIN_VEC_SET_V4HI): New.
        (ix86_init_builtins): Make static.
        (ix86_init_mmx_sse_builtins): Update for changed builtins.
        (ix86_expand_binop_builtin): Only use ix86_fixup_binary_operands
        if all the modes match.  Otherwise, fake it.
        (get_element_number, ix86_expand_vec_init_builtin,
        ix86_expand_vec_ext_builtin, ix86_expand_vec_set_builtin): New.
        (ix86_expand_builtin): Make static.  Update for changed builtins.
        (ix86_expand_vector_move_misalign): Use sse2_loadlpd with zero
        operand instead of sse2_loadsd.  Cast sse1 fallback to V4SFmode.
        (ix86_expand_vector_init_duplicate): New.
        (ix86_expand_vector_init_low_nonzero): New.
        (ix86_expand_vector_init_one_var, ix86_expand_vector_init_general):
        Split out from ix86_expand_vector_init; handle integer modes.
        (ix86_expand_vector_init): Use them.
        (ix86_expand_vector_set, ix86_expand_vector_extract): New.
        * config/i386/i386-protos.h: Update.
        * config/i386/predicates.md (reg_or_0_operand): New.
        * config/i386/mmx.md (mov<MMXMODEI>_internal): Add 'r' variants.
        (movv2sf_internal): Likewise.  And a splitter to match them all.
        (vec_dupv2sf, mmx_concatv2sf, vec_setv2sf, vec_extractv2sf,
        vec_initv2sf, vec_dupv4hi, vec_dupv2si, mmx_concatv2si, vec_setv2si,
        vec_extractv2si, vec_initv2si, vec_setv4hi, vec_extractv4hi,
        vec_initv4hi, vec_setv8qi, vec_extractv8qi, vec_initv8qi): New.
        (mmx_pinsrw): Fix operand ordering.
        * config/i386/sse.md (movv4sf splitter): Use direct pattern,
        rather than sse_loadss expander.
        (movv2df splitter): Similarly.
        (sse_loadss, sse_loadlss): Remove.
        (vec_dupv4sf, sse_concatv2sf, sse_concatv4sf, vec_extractv4sf_0): New.
        (vec_setv4sf, vec_setv2df): Use ix86_expand_vector_set.
        (vec_extractv4sf, vec_extractv2df): Use ix86_expand_vector_extract.
        (sse3_movddup): Rename with '*'.
        (sse3_movddup splitter): Use gen_rtx_REG instead of gen_lowpart.
        (sse2_loadsd): Remove.
        (vec_dupv2df_sse3): Rename from sse3_loadddup.
        (vec_dupv2df, vec_concatv2df_sse3, vec_concatv2df): New.
        (sse2_pinsrw): Fix argument ordering.
        (sse2_loadld, sse2_loadq): Add sse1 alternatives.
        (sse2_stored): Remove 'r' destination.
        (vec_dupv4si, vec_dupv2di, sse2_concatv2si, sse1_concatv2si,
        vec_concatv4si_1, vec_concatv2di, vec_setv2di, vec_extractv2di,
        vec_initv2di, vec_setv4si, vec_extractv4si, vec_initv4si,
        vec_setv8hi, vec_extractv8hi, vec_initv8hi, vec_setv16qi,
        vec_extractv16qi, vec_initv16qi): New.

        * config/i386/emmintrin.h (__m128i, __m128d): Use typedef, not define.
        (_mm_set_sd, _mm_set1_pd, _mm_setzero_pd, _mm_set_epi64x, 
        _mm_set_epi32, _mm_set_epi16, _mm_set_epi8, _mm_setzero_si128): Use
        constructor form.
        (_mm_load_pd, _mm_store_pd): Use plain dereference.
        (_mm_load_si128, _mm_store_si128): Likewise.
        (_mm_load1_pd): Use _mm_set1_pd.
        (_mm_load_sd): Use _mm_set_sd.
        (_mm_store_sd, _mm_storeh_pd): Use __builtin_ia32_vec_ext_v2df.
        (_mm_store1_pd, _mm_storer_pd): Use _mm_store_pd.
        (_mm_set_epi64): Use _mm_set_epi64x.
        (_mm_set1_epi64x, _mm_set1_epi64, _mm_set1_epi32, _mm_set_epi16,
        _mm_set1_epi8, _mm_setr_epi64, _mm_setr_epi32, _mm_setr_epi16,
        _mm_setr_epi8): Use _mm_set_foo form.
        (_mm_loadl_epi64, _mm_movpi64_epi64, _mm_move_epi64): Use _mm_set_epi64.
        (_mm_storel_epi64, _mm_movepi64_pi64): Use __builtin_ia32_vec_ext_v2di.
        (_mm_extract_epi16): Use __builtin_ia32_vec_ext_v8hi.
        (_mm_insert_epi16): Use __builtin_ia32_vec_set_v8hi.
        * config/i386/mmintrin.h (_mm_setzero_si64): Use plain cast.
        (_mm_set_pi32): Use __builtin_ia32_vec_init_v2si.
        (_mm_set_pi16): Use __builtin_ia32_vec_init_v4hi.
        (_mm_set_pi8): Use __builtin_ia32_vec_init_v8qi.
        (_mm_set1_pi16, _mm_set1_pi8): Use _mm_set_piN variant.
        * config/i386/pmmintrin.h (_mm_loaddup_pd): Use _mm_load1_pd.
        (_mm_movedup_pd): Use _mm_shuffle_pd.
        * config/i386/xmmintrin.h (_mm_setzero_ps, _mm_set_ss,
        _mm_set1_ps, _mm_set_ps, _mm_setr_ps): Use constructor form.
        (_mm_cvtpi16_ps, _mm_cvtpu16_ps, _mm_cvtpi8_ps, _mm_cvtpu8_ps,
        _mm_cvtps_pi8, _mm_cvtpi32x2_ps): Avoid __builtin_ia32_mmx_zero;
        Use _mm_setzero_ps.
        (_mm_load_ss, _mm_load1_ps): Use _mm_set* form.
        (_mm_load_ps, _mm_loadr_ps): Use raw dereference.
        (_mm_store_ss): Use __builtin_ia32_vec_ext_v4sf.
        (_mm_store_ps): Use raw dereference.
        (_mm_store1_ps): Use _mm_storeu_ps.
        (_mm_storer_ps): Use _mm_store_ps.
        (_mm_extract_pi16): Use __builtin_ia32_vec_ext_v4hi.
        (_mm_insert_pi16): Use __builtin_ia32_vec_set_v4hi.

2005-01-11  Stan Shebs  <shebs@apple.com>

        * config/rs6000/rs6000.c (machopic_output_stub): Issue
        ldu instead of lwzu if 64-bit -mdynamic-no-pic.

2005-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/18761
        * config/rs6000/rs6000.c (rs6000_special_round_type_align):
        Skip all DECLs except for FIELD_DECLs.

2005-01-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (override_options): Return error if
        -mbackchain, -mpacked-stack and -mhard-float are used together.
        (s390_va_start): Remove the backchain && packed-stack special case.
        (s390_gimplify_va_arg): Likewise.
        * doc/invoke.texi: Remove the ABI incompatibility note.

2005-01-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (struct s390_frame_layout): Remove 
        save_backchain_p.
        (s390_frame_info, s390_emit_prologue): Replace occurrences of
        save_backchain_p with TARGET_BACKCHAIN.

2005-01-11  Alan Modra  <amodra@bigpond.net.au>

        PR target/18916
        * builtins.c (std_gimplify_va_arg_expr): Adjust alignment of *ap.
        * expr.h (struct locate_and_pad_arg_data): Add "boundary".
        * function.c (locate_and_pad_parm): Set new field.
        (assign_parm_find_stack_rtl): Use it instead of FUNCTION_ARG_BOUNDARY.
        Tweak where_pad test to include "none".  Always set mem align for
        stack_parm.
        (assign_parm_adjust_stack_rtl): Discard stack_parm if alignment
        not sufficient for type.
        (assign_parm_setup_block): If stack_parm is zero on entry, always
        make a new stack local.  Block move old stack parm if necessary
        to new aligned stack local.
        (assign_parm_setup_stack): Use a block move to handle
        potentially misaligned entry_parm.
        (assign_parms_unsplit_complex): Specify required alignment when
        creating stack local.
        * calls.c (compute_argument_addresses): Override alignment of stack
        arg calculated from its type with the alignment given by
        FUNCTION_ARG_BOUNDARY.
        (store_one_arg): Likewise.

2005-01-11  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.md (zero_extendsidi2): Replace zxt4 by addp4.
        Change respective itanium_class attribute to ialu.
        (shladdp4_internal): New.
        * config/ia64/predicates.md (shladd_log2_operand): New.

2005-01-11  Richard Henderson  <rth@redhat.com>

        * expr.c (store_constructor): Use rtvec_alloc instead of
        alloca+gen_rtvec_v, and an incorrect number passed to alloca.

2005-01-11  Kazu Hirata  <kazu@cs.umass.edu>

        * config/alpha/alpha.c, config/i386/mmx.md: Fix comment typos.

2005-01-11  Alan Modra  <amodra@bigpond.net.au>

        * varasm.c (default_section_type_flags_1): Don't set SECTION_SMALL.
        * config/ia64/ia64.c (TARGET_SECTION_TYPE_FLAGS): Define.
        (TARGET_RWRELOC): Define.
        (ia64_rwreloc_section_type_flags): Delete.
        (ia64_section_type_flags): New function.
        * config/ia64/hpux.h (TARGET_SECTION_TYPE_FLAGS): Don't define.
        (TARGET_RWRELOC): Define.

2005-01-10  David Mosberger  <davidm@hpl.hp.com>

        PR target/18987
        * config/ia64/ia64.c (process_set): For alloc insn, only call
        process_epilogue is !frame_pointer_needed.

2005-01-10  Roger Sayle  <roger@eyesopen.com>

        PR c++/19355
        * c-common.c (c_common_truthvalue_conversion): TRUTH_NOT_EXPR is a
        unary operator and can't be treated as a binary/comparison operator.

2005-01-10  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_function_value): Use type_natural_mode.
        (ix86_return_in_memory): Likewise.
        (function_arg_advance):  Likewise.  Mirror structure in function_arg
        for choosing register to advance.

2005-01-10  Kazu Hirata  <kazu@cs.umass.edu>

        * tree-vectorizer.c, tree.def: Fix comment typos.

2005-01-10  Mark Dettinger  <dettinge@de.ibm.com>

        * config/s390/s390.c (struct processor_costs): 4 new fields:
        ddbr, ddr, debr, der.
        (s390_rtx_costs): More precise handling of divide instructions.

2005-01-10  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/t-aix43 (BOOT_LDFLAGS): Define.

2005-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/ia64.c (ia64_in_small_data_p): Also handle the section
        names resulting from -ffunction-sections/-fdata-sections and linkonce
        ones.
        * varasm.c (default_section_type_flags_1): Also set SECTION_SMALL
        based on the section name. Rearrange the section name comparison logic
        slightly so that each section name is compared against at most once.

2005-01-10  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi (Code Gen Options): Add PowerPC to the list of
        targets for which -fPIC reduces limitations on the GOT size.

2005-01-09  Falk Hueffner  <falk@debian.org>

        * fold-const.c (fold): Also handle EXACT_DIV_EXPR when folding
        X/C1 cmpop C2.

2005-01-09  David Edelsohn  <edelsohn@gnu.org>

        PR target/18720
        * collect2.c (main): Set aixrtl_flag for -brtl option.
        (resolve_lib_name): Search for .so file extension before .a
        if aixrtl_flag set.

2005-01-09  Dorit Naishlos  <dorit@il.ibm.com>

        * tree-vectorizer.c (vect_enhance_data_refs_alignment): Add dump prints.
        (vect_analyze_data_refs_alignment): Add dump prints.

2005-01-09  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Use 
        expr_invariant_in_loop_p.
        Initialize outputs first thing in the function.
        (vect_update_ivs_after_vectorizer): Call initial_condition_in_loop_num.
        (vect_is_simple_iv_evolution): Call initial_condition_in_loop_num.
        (vect_analyze_pointer_ref_access): Check that the initial condition of 
        the access function is loop invariant.

2005-01-09  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (bdesc_2arg): Update names for mmx_ prefixes.
        (ix86_expand_builtin): Likewise.  Frob MASKMOVQ wrt the input mem
        just like MASKMOVDQU.  Return plain zero for MMX_ZERO.
        * config/i386/i386.md (MMXMODEI, mov<MMXMODEI>,
        mov<MMXMODEI>_internal_rex64, mov<MMXMODEI>_internal, movv2sf,
        movv2sf_internal_rex64, movv2sf_internal, MMXMODE,
        movmisalign<MMXMODE>, mmx_pmovmskb, mmx_maskmovq, mmx_maskmovq_rex,
        sse_movntdi, addv8qi3, addv4hi3, addv2si3, mmx_adddi3, ssaddv8qi3,
        ssaddv4hi3, usaddv8qi3, usaddv4hi3, subv8qi3, subv4hi3, subv2si3,
        mmx_subdi3, sssubv8qi3, sssubv4hi3, ussubv8qi3, ussubv4hi3,
        mulv4hi3, smulv4hi3_highpart, umulv4hi3_highpart, mmx_pmaddwd,
        sse2_umulsidi3, mmx_iordi3, mmx_xordi3, mmx_anddi3, mmx_nanddi3,
        mmx_uavgv8qi3, mmx_uavgv4hi3, mmx_psadbw, mmx_pinsrw, mmx_pinsrw,
        mmx_pextrw, mmx_pshufw, eqv8qi3, eqv4hi3, eqv2si3, gtv8qi3, gtv4hi3,
        gtv2si3, umaxv8qi3, smaxv4hi3, uminv8qi3, sminv4hi3, ashrv4hi3,
        ashrv2si3, lshrv4hi3, lshrv2si3, mmx_lshrdi3, ashlv4hi3, ashlv2si3,
        mmx_ashldi3, mmx_packsswb, mmx_packssdw, mmx_packuswb, mmx_punpckhbw,
        mmx_punpckhwd, mmx_punpckhdq, mmx_punpcklbw, mmx_punpcklwd, 
        mmx_punpckldq, emms, addv2sf3, subv2sf3, subrv2sf3, gtv2sf3, gev2sf3,
        eqv2sf3, pfmaxv2sf3, pfminv2sf3, mulv2sf3, femms, pf2id, pf2iw,
        pfacc, pfnacc, pfpnacc, pi2fw, floatv2si2, pfrcpv2sf2, pfrcpit1v2sf3,
        pfrcpit2v2sf3, pfrsqrtv2sf2, pfrsqit1v2sf3, pmulhrwv4hi3, pswapdv2si2,
        pswapdv2sf2): Move to mmx.md; rename as necessary with leading
        mmx_ prefix.
        (mmx_clrdi, pavgusb): Remove.
        (ldmxcsr, stmxcsr, sfence, sfence_insn): Move to sse.md; rename 
        with leading sse_ prefix.
        * config/i386/sse.md: Receive them.
        * config/i386/mmx.md: New file.
        (MMXMODE12, MMXMODE24, mmxvecsize): New.
        (subrv2sf3): Turn into expander for normal subtraction.
        (mmx_addv2sf3, mmx_mulv2sf3, mmx_smaxv2sf3, mmx_sminv2sf3,
        mmx_eqv2sf3, mmx_mulv4hi3, mmx_smulv4hi3_highpart,
        mmx_umulv4hi3_highpart, mmx_pmaddwd, mmx_pmulhrwv4hi3, sse2_umulsidi3,
        mmx_umaxv8qi3, mmx_smaxv4hi3, mmx_uminv8qi3, mmx_sminv4hi3): Mark
        commutative; use ix86_binary_operator_ok.
        (mmx_add<MMXMODEI>3, mmx_ssadd<MMXMODE12>3, mmx_usadd<MMXMODE12>3,
        mmx_sub<MMXMODEI>3, mmx_sssub<MMXMODE12>3, mmx_ussub<MMXMODE12>3
        mmx_ashr<MMXMODE24>3, mmx_lshr<MMXMODE23>3, mmx_ashl<MMXMODE24>3
        mmx_eq<MMXMODEI>3, mmx_gt<MMXMODEI>3, mmx_and<MMXMODEI>3, 
        mmx_nand<MMXMODEI>3, mmx_ior<MMXMODEI>3, mmx_xor<MMXMODEI>3):
        Macroize from existing patterns; use ix86_binary_operator_ok.
        (mmx_packsswb, mmx_packssdw, mmx_packuswb): Add memory alternative.
        (mmx_punpckhbw, mmx_punpcklbw, mmx_punpckhwd, mmx_punpcklwd,
        mmx_punpckhdq, mmx_punpckhdq, mmx_punpckldq): Likewise.  Model
        with vec_select+vec_concat.
        (mmx_pshufw, mmx_pshufw_1): Likewise.
        (mmx_uavgv8qi3): Merge pavgusb.  Model correcty.
        (mmx_uavgv4hi3): Model correctly.
        * config/i386/mmintrin.h (_mm_and_si64, _mm_andnot_si64, _mm_or_si64,
        _mm_xor_si64): Remove casts.

2005-01-09  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/19224
        * tree-scalar-evolution.c (get_instantiated_value,
        set_instantiated_value): New functions.
        (instantiate_parameters_1): Cache the results.
        (instantiate_parameters, resolve_mixers): Initialize and free
        the cache.

2005-01-08  David Edelsohn  <edelsohn@gnu.org>

        * config/i386/i386.md (addhi_4): Correct reference in comment.
        (addqi_4): Same.

2005-01-08  Richard Henderson  <rth@redhat.com>

        * config/i386/emmintrin.h (_mm_cvtsi128_si32): Move earlier.
        (_mm_cvtsi128_si64x): Likewise.
        (_mm_srl_epi64, _mm_srl_epi32, _mm_srl_epi16, _mm_sra_epi32,
        _mm_sra_epi16, _mm_sll_epi64, _mm_sll_epi32, _mm_sll_epi16): Use
        the _mm_{srl,sll}i_foo counterpart, and _mm_cvtsi128_si32.
        * config/i386/i386-modes.def: Add V16HI, V32QI, V4DF, V8SF.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.c (print_operand): Add 'H'.
        (ix86_fixup_binary_operands): Split out from ...
        (ix86_expand_binary_operator): ... here.
        (ix86_fixup_binary_operands_no_copy): New.
        (ix86_expand_fp_absneg_operator): Handle vector mode results.
        (bdesc_2arg): Update names for sse{,2,3}_ prefixes.
        (ix86_init_mmx_sse_builtins): Remove *maskncmp* special cases.
        (safe_vector_operand): Use CONST0_RTX.
        (ix86_expand_binop_builtin): Use ix86_fixup_binary_operands.
        (ix86_expand_builtin): Merge CODE_FOR_sse2_maskmovdqu_rex64 and
        CODE_FOR_sse2_maskmovdqu.  Special case SSE version of MASKMOVDQU
        expansion.  Update names for sse{,2,3}_ prefixes.  Remove *maskncmp*
        special cases.
        * config/i386/i386.h (IX86_BUILTIN_CMPNGTSS): New.
        (IX86_BUILTIN_CMPNGESS): New.
        * config/i386/i386.md (UNSPEC_FIX_NOTRUNC): New.
        (attr type): Add sselog1.
        (attr unit, attr memory): Handle it.
        (movti, movti_internal, movti_rex64): Move near other integer moves.
        (movtf, movtf_internal): Move near other fp moves.
        (SSEMODE, SSEMODEI, vec_setv2df, vec_extractv2df, vec_initv2df,
        vec_setv4sf, vec_extractv4sf, vec_initv4sf, movv4sf, movv4sf_internal,
        movv2df, movv2df_internal, mov<SSEMODEI>, mov<SSEMODEI>_internal, 
        movmisalign<SSEMODE>, sse_movups_1, sse_movmskps, sse_movntv4sf,
        sse_movhlps, sse_movlhps, sse_storehps, sse_loadhps, sse_storelps,
        sse_loadlps, sse_loadss, sse_loadss_1, sse_movss, sse_storess,
        sse_shufps, addv4sf3, vmaddv4sf3, subv4sf3, vmsubv4sf3, negv4sf2,
        mulv4sf3, vmmulv4sf3, divv4sf3, vmdivv4sf3, rcpv4sf2, vmrcpv4sf2,
        rsqrtv4sf2, vmrsqrtv4sf2, sqrtv4sf2, vmsqrtv4sf2, sse_andv4sf3,
        sse_nandv4sf3, sse_iorv4sf3, sse_xorv4sf3, sse2_andv2df3, 
        sse2_nandv2df3, sse2_iorv2df3, sse2_xorv2df3, sse2_andv2di3, 
        sse2_nandv2di3, sse2_iorv2di3, sse2_xorv2di3, maskcmpv4sf3, 
        vmmaskcmpv4sf3, sse_comi, sse_ucomi, sse_unpckhps, sse_unpcklps,
        smaxv4sf3, vmsmaxv4sf3, sminv4sf3, vmsminv4sf3, cvtpi2ps, cvtps2pi,
        cvttps2pi, cvtsi2ss, cvtsi2ssq, cvtss2si, cvtss2siq, cvttss2si,
        cvttss2siq, addv2df3, vmaddv2df3, subv2df3, vmsubv2df3, mulv2df3,
        vmmulv2df3, divv2df3, vmdivv2df3, smaxv2df3, vmsmaxv2df3, sminv2df3,
        vmsminv2df3, sqrtv2df2, vmsqrtv2df2, maskcmpv2df3, vmmaskcmpv2df3,
        sse2_comi, sse2_ucomi, sse2_movmskpd, sse2_pmovmskb, sse2_maskmovdqu,
        sse2_maskmovdqu_rex64, sse2_movntv2df, sse2_movntv2di, sse2_movntsi,
        cvtdq2ps, cvtps2dq, cvttps2dq, cvtdq2pd, cvtpd2dq, cvttpd2dq,
        cvtpd2pi, cvttpd2pi, cvtpi2pd, cvtsd2si, cvtsd2siq, cvttsd2si,
        cvttsd2siq, cvtsi2sd, cvtsi2sdq, cvtsd2ss, cvtss2sd, cvtpd2ps,
        cvtps2pd, addv16qi3, addv8hi3, addv4si3, addv2di3, ssaddv16qi3,
        ssaddv8hi3, usaddv16qi3, usaddv8hi3, subv16qi3, subv8hi3, subv4si3,
        subv2di3, sssubv16qi3, sssubv8hi3, ussubv16qi3, ussubv8hi3, mulv8hi3,
        smulv8hi3_highpart, umulv8hi3_highpart, sse2_umulsidi3,
        sse2_umulv2siv2di3, sse2_pmaddwd, sse2_uavgv16qi3, sse2_uavgv8hi3,
        sse2_psadbw, sse2_pinsrw, sse2_pextrw, sse2_pshufd, sse2_pshuflw,
        sse2_pshufhw, eqv16qi3, eqv8hi3, eqv4si3, gtv16qi3, gtv8hi3, 
        gtv4si3, umaxv16qi3, smaxv8hi3, uminv16qi3, sminv8hi3, ashrv8hi3,
        ashrv4si3, lshrv8hi3, lshrv4si3, lshrv2di3, ashlv8hi3, ashlv4si3,
        ashlv2di3, sse2_ashlti3, sse2_lshrti3, sse2_unpckhpd, sse2_unpcklpd,
        sse2_packsswb, sse2_packssdw, sse2_packuswb, sse2_punpckhbw, 
        sse2_punpckhwd, sse2_punpckhdq, sse2_punpcklbw, sse2_punpcklwd,
        sse2_punpckldq, sse2_punpcklqdq, sse2_punpckhqdq, sse2_movupd,
        sse2_movdqu, sse2_movdq2q, sse2_movdq2q_rex64, sse2_movq2dq, 
        sse2_movq2dq_rex64, sse2_loadd, sse2_stored, sse2_storehpd,
        sse2_loadhpd, sse2_storelpd, sse2_loadlpd, sse2_movsd, sse2_loadsd,
        sse2_loadsd_1, sse2_storesd, sse2_shufpd, sse2_clflush, sse2_mfence,
        mfence_insn, sse2_lfence, lfence_insn, mwait, monitor, addsubv4sf3,
        addsubv2df3, haddv4sf3, haddv2df3, hsubv4sf3, hsubv2df3, movshdup,
        movsldup, lddqu, loadddup, movddup): Move to sse.md.  Any with
        non-optabs meanings renamed with an "sse{,2,3}_" prefix at the
        same time.
        (SSEPUSH, push<SSEPUSH>): Remove.
        (MMXPUSH, push<MMXPUSH>): Remove.
        (sse_movaps, sse_movaps_1, sse_movups): Remove.
        (sse2_movapd, sse2_movdqa, sse2_movq): Remove.
        (sse2_andti3, sse2_nandti3, sse2_iorti3, sse2_xorti3): Remove.
        (sse_clrv4sf, sse_clrv2df, sse2_clrti): Remove.
        (maskncmpv4sf3, vmmaskncmpv4sf3): Remove.
        (maskncmpv2df3, vmmaskncmpv2df3): Remove.
        (ashrv8hi3_ti, ashrv4si3_ti, lshrv8hi3_ti, lshrv4si3_ti): Remove.
        (lshrv2di3_ti, ashlv8hi3_ti, ashlv4si3_ti, ashlv2di3_ti): Remove.
        * config/i386/athlon.md (athlon_sselog_load): Handle sselog1.
        (athlon_sselog_load_k8, athlon_sselog, athlon_sselog_k8): Likewise.
        * config/i386/ppro.md (ppro_sse_div_V4SF_load): Fix memory attr.
        (ppro_sse_log_V4SF_load): Similarly.  Handle sselog1.
        (ppro_sse_log_V4SF): Handle sselog1.
        * config/i386/predicates.md (const_0_to_1_operand): New.
        (const_0_to_255_mul_8_operand): New.
        (const_1_to_31_operand): Rename from const_int_1_31_operand.
        (const_2_to_3_operand, const_4_to_7_operand): New.
        * config/i386/sse.md: New file.
        (SSEMODE12, SSEMODE24, SSEMODE124, SSEMODE248, ssevecsize): New.
        (sse_movups): Rename from sse_movups_1.
        (sse_loadlss): Rename from sse_loadss_1.
        (andv4sf3, iorv4sf3, xorv4sf3, andv2df3): Remove the sse prefix
        from the name.
        (negv4sf2): Use ix86_expand_fp_absneg_operator.
        (absv4sf2, negv2df, absv2df): New.
        (addv4sf3): Add expander to call ix86_fixup_binary_operands_no_copy.
        (subv4sf3, mulv4sf3, divv4sf3, smaxv4sf3, sminv4sf3, andv4sf3,
        iorv4sf3, xorv4sf3, addv2df3, subv2df3, mulv2df3, divv2df3,
        smaxv2df3, sminv2df3, andv2df3, iorv2df3, xorv2df3, mulv8hi3,
        umaxv16qi3, smaxv8hi3, uminv16qi3, sminv8hi3): Likewise.
        (sse3_addsubv4sf3): Model correctly.
        sse3_haddv4sf3, sse3_hsubv4sf3, sse3_addsubv2df3, sse3_haddv2df3,
        sse3_hsubv2df3, sse2_ashlti3, sse2_lshrti3): Likewise.
        (sse_movhlps): Model with vec_select+vec_concat.
        (sse_movlhps, sse_unpckhps, sse_unpcklps, sse3_movshdup, 
        sse3_movsldup, sse_shufps, sse_shufps_1, sse2_unpckhpd, sse3_movddup,
        sse2_unpcklpd, sse2_shufpd, sse2_shufpd_1, sse2_punpckhbw,
        sse2_punpcklbw, sse2_punpckhwd, sse2_punpcklwd, sse2_punpckhdq,
        sse2_punpckldq, sse2_punpckhqdq, sse2_punpcklqdq, sse2_pshufd,
        sse2_pshufd_1, sse2_pshuflw, sse2_pshuflw_1, sse2_pshufhw, 
        sse2_pshufhw_1): Likewise.
        (neg<SSEMODEI>2, one_cmpl<SSEMODEI>2): New.
        (add<SSEMODEI>3, sse2_ssadd<SSEMODE12>3, sse2_usadd<SSEMODE12>3,
        sub<SSEMODEI>3, sse2_sssub<SSEMODE12>3, sse2_ussub<SSEMODE12>3,
        ashr<SSEMODE24>3, lshr<SSEMODE248>3, sse2_eq<SSEMODE124>3,
        sse2_gt<SSEMODDE124>3, and<SSEMODEI>3, sse_nand<SSEMODEI>3,
        ior<SSEMODEI>3, xor<SSEMODEI>3): Macroize from existing patterns.       
        (addv4sf3, sse_vmaddv4sf3, mulv4sf3, sse_vmmulv4sf3, smaxv4sf3,
        sse_vmsmaxv4sf3, sminv4sf3, sse_vmsminv4sf3, addv2df3, sse2_vmaddv2df3,
        mulv2df3, sse2_vmmulv2df3, smaxv2df3, sse2_vmsmaxv2df3, sminv2df3,
        sse2_vmsminv2df3, umaxv16qi3, smaxv8hi3, uminv16qi3
        sminv8hi3): Mark commutative
        operands.  Use ix86_binary_operator_ok.
        (sse_unpckhps, sse_unpcklps, sse2_packsswb, sse2_packssdw,
        sse2_packuswb, sse2_punpckhbw, sse2_punpcklbw, sse2_punpckhwd,
        sse2_punpcklwd, sse2_punpckhdq, sse2_punpckldq, sse2_punpckhqdq,
        sse2_punpcklqdq): Allow operand2 in memory.
        (sse_movhlps, sse_movlhps, sse2_unpckhpd, sse2_unpcklpd
        sse2_movsd): Add memory alternatives.
        (sse_storelps): Turn expander into an insn; split after reload.
        (sse_storess, sse2_loadhpd, sse2_loadlpd): Add non-xmm inputs.
        (sse2_storehpd, sse2_storelpd): Add non-xmm outputs.

2005-01-08  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (DWARF-2 debug_line): Use objdump.
        * configure: Regenerate.

2005-01-08  Jeff Law  <law@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        PR tree-optimization/18241
        * tree-nrv.c (tree_nrv): Ignore volatile return values.
        * tree-ssa-dse.c (dse_optimize_stmt): Do not optimize
        statements with volatile operands.
        * tree-ssa-operands.c (add_stmt_operand): Do add volatile
        operands after marking a statement with has_volatile_ops.

2005-01-08  Roger Sayle  <roger@eyesopen.com>

        * tree.c (int_fits_type_p): Always honor integer constant
        TYPE_MIN_VALUE and TYPE_MAX_VALUE if they exist.

2005-01-08  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Reinstate 2005-01-04 change, now that
        the latent bug in rtl_delete_block has been resolved.

2005-01-08  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/t-iris6 (MULTILIB_DIRNAMES): Use -mabi argument values.
        (MULTILIB_OSDIRNAMES): Use the standard lib, lib32 and lib64.

2005-01-08  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/t-slibgcc-irix (SHLIB_LINK): Install a copy of the
        library as @multilib_dir@/$(SHLIB_SONAME).

2005-01-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (HAVE_AS_OFFSETABLE_LO10): Fix typo.
        * configure: Regenerate.

2005-01-07  Jakub Jelinek  <jakub@redhat.com>

        * c-common.c (handle_mode_attribute): For ENUMERAL_TYPE, also copy
        TYPE_MODE.

2005-01-07  David Edelsohn  <edelsohn@gnu.org>

        PR target/13674
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
        Convert non-word aligned offset address using ld/std into
        indirect address.

2005-01-07  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (sse_loadhps splitter): Fix operand number typo.

2005-01-07  Richard SAndiford  <rsandifo@redhat.com>

        * tree.h (IS_EXPR_CODE_CLASS): Use a straight-forward range check.

2005-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/19283
        * fold-const.c (fold_widened_comparison): Return NULL if shorter_type
        is not shorter than the original type.

        PR rtl-optimization/19012
        * config/i386/i386.md (addqi_1_slp): Set memory attribute.

        PR rtl-optimization/18861
        * cfgbuild.c (BLOCK_USED_BY_TABLEJUMP): Define.
        (FULL_STATE): Define.
        (mark_tablejump_edge): New function.
        (purge_dead_tablejump_edges): New function.
        (find_bb_boundaries): Use it.

        PR tree-optimization/18828
        * builtins.c (expand_builtin_next_arg): Remove argument and all
        the argument checking.
        (expand_builtin): Adjust caller.
        (expand_builtin_va_start): Likewise.  Remove error for too many
        arguments.
        (fold_builtin_next_arg): Issue error for too many arguments.
        After checking arguments, replace them with magic arguments that
        prevent further checking of the args.

2005-01-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa64-hpux.h (STARTFILE_SPEC): Fix typo in spec.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        PR target/6077
        * gcc.c (input_suffix_matches): Tweak the semantics of %{.s:...}
        and %{.S:...} (and their negative variants) to test whether the
        input file is assembler or pre-processed-assembler independent of
        the actual filename extension.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_subreg): Simplify truncations of shifts
        of sign or zero extended values.

2005-01-06  Geoffrey Keating  <geoffk@apple.com>

        * c-cppbuiltin.c (builtin_define_float_constants): Set __*_EPSILON__
        for IBM long double format correctly.

2005-01-06  Daniel Berlin <dberlin@dberlin.org>
        
        Fix PR tree-optimization/18792

        * tree-data-ref.c (build_classic_dist_vector): Change first_loop
        to first_loop_depth, and use loop depth instead of loop number.
        (build_classic_dir_vector): Ditto.
        (compute_data_dependences_for_loop): Use depth, not loop number.
        * tree-loop-linear.c (try_interchange_loops): Use loop depth, not loop 
        number. Pass in loops, instead of loop numbers.
        (gather_interchange_stats): Ditto.
        (linear_transform_loops): Ditto.

2005-01-06  Richard Sandiford  <rsandifo@redhat.com>

        PR rtl-opt/13299
        * loop.c (get_monotonic_increment, biased_biv_fits_mode_p,
        biv_fits_mode_p, extension_within_bounds_p): New functions.
        (check_ext_dependent_givs): Use them.

2005-01-06  Roger Sayle  <roger@eyesopen.com>

        * cfgrtl.c (rtl_delete_block): A basic block may be followed by
        more than one barrier, in which case we should delete them all.

2005-01-06  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>

        * gcc.c (process_command): Change year in 'gcc --version' to 2005.

2005-01-05  Daniel Berlin  <dberlin@dberlin.org>
        
        Fix PR middle-end/19286
        Fix PR debug/19267
        * dwarf2out.c (gen_subprogram_die): If we've already tried to
        output this subprogram, simply ignore this attempt to do it again.
        (add_abstract_origin_attribute): Don't abort trying to add the abstract
        origin attribute if it's not possible.
        (gen_block_die): Don't ignore subblocks of "unused" blocks.
        (decls_for_scope): Ditto.
        * gimple-low.c (mark_blocks_with_used_subblocks): Remove.
        (mark_used_blocks): Don't call mark_blocks_with_used_subblocks.
        
2005-01-05  Richard Henderson  <rth@redhat.com>

        PR target/11327
        * config/i386/i386.c (BUILTIN_DESC_SWAP_OPERANDS): New.
        (bdesc_2arg): Use it.
        (ix86_expand_binop_builtin): Force operands into registers
        when optimizing.
        (ix86_expand_unop_builtin, ix86_expand_unop1_builtin,
        ix86_expand_sse_compare, ix86_expand_sse_comi, 
        ix86_expand_builtin): Likewise.

2005-01-05  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (rtx_needs_barrier): Handle CONST_VECTOR
        and VEC_SELECT.
        * config/ia64/vect.md (mulv8qi3): Re-implement with mix_[rl].
        (mulv4hi3): Set itanium_class mmmul.
        (fpack_sfxf, fpack_xfsf, fpack_xfxf): Remove.
        (fpack): Rename from fpack_sfsf.

2005-01-05  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/10692
        * reload1.c (do_input_reload): Restrict the optimization deleteing
        a previous output reload to RELOAD_FOR_INPUT.

2005-01-05  Steven Bosscher  <stevenb@suse.de>

        * combine.c (expand_compound_operation)  <ZERO_EXTRACT>: Add
        comment that we fall through after case.
        (mark_used_regs_combine): Don't expect a SIGN_EXTRACT in a SET_DEST.
        (distribute_links): Likewise.
        * cse.c (cse_insn): Likewise.
        * cselib.c (cselib_invalidate_mem): Likewise.
        * df.c: Update comments at the top of the file.
        (read_modify_subreg_p): Update comments here too.
        (df_def_record_1): Don't expect a SIGN_EXTRACT in a SET_DEST.
        * flow.c (mark_set_1): Likewise.
        (mark_used_regs): Likewise.
        * gcse.c (mems_conflict_for_gcse_p): Likewise.
        (canon_list_insert): Likewise.
        (mark_set): Likewise.
        (try_replace_reg): Likewise.
        (store_killed_in_insn): Likewise.
        * loop.c (count_one_set): Likewise.
        (basic_induction_var): Likewise.
        * postreload-gcse.c (find_mem_conflicts): Likewise.
        * postreload.c (reload_combine_note_store): Likewise.
        (move2add_note_store): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        (mark_referenced_resources): Likewise.
        * rtlanal.c (set_noop_p): Likewise.
        (note_stores): Likewise.
        (note_uses): Likewise.
        * sched-deps.c (sched_analyze_1): Likewise.
        * sched-rgn.c (check_live_1): Likewise.
        (update_live_1): Likewise.
        * config/i860/i860.c: Likewise.

        * rtl.dec (SIGN_EXTRACT): Document that this cannot appear as
        an lvalue.
        (ZERO_EXTRACT): Mention that this one can be an lvalue.

        * doc/rtl.texi: Update documentation for bit-fields and SET.

2005-01-05  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Revert 2005-01-04 change.

2005-01-05  Jan Hubicka  <jh@suse.cz>
            Richard Henderson  <rth@redhat.com>

        PR target/18910
        * config/i386/i386.c (ix86_expand_move): Handle tls symbols 
        with an offset.

2005-01-05  Richard Henderson  <rth@redhat.com>

        PR target/12902
        * config/i386/i386.md (sse_movhps, sse_movlps): Remove.
        (sse_shufps): Change operand 3 to const_int_operand.
        (sse2_storelps): Fix typo in template.
        (sse_storehps, sse_loadhps, sse_storelps, sse_loadlps): New.
        * config/i386/i386.c (ix86_expand_vector_move_misalign): Use them.
        (ix86_expand_builtin): Likewise.

2005-01-05  Julian Brown  <julian@codesourcery.com>

        * config/arm/arm.c (arm_return_in_memory): Treat complex types
        as aggregates for AAPCS ABIs.

2005-01-05  Stan Shebs  <shebs@apple.com>

        * unwind-dw2-fde-darwin.c (examine_objects): Use 64-bit
        Mach-O getters if ppc64.
        * config/darwin.c (darwin_asm_output_dwarf_delta): Obey
        size argument.
        * config/darwin.h (ASM_PREFERRED_EH_DATA_FORMAT): Use
        signed four-byte field for global code case.
        (STARTFILE_SPEC): Avoid crt2.o for 64-bit compilation.

2005-01-05  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19100
        * c-common.c: Include real.h.
        (c_common_truthvalue_conversion): Avoid destructively modifying expr.
        Correctly handle TREE_CONSTANT_OVERFLOW for INTEGER_CST.
        Correctly handle TREE_CONSTANT_OVERFLOW and NaNs for REAL_CST.
        * Makefile.in (c-common.o): Update dependencies.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-parse.in (asm_string): Add trailing semicolon.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-parse.in (asm_string): New.  Don't allow wide strings in
        'asm'.
        (simple_asm_expr, asm_argument, asm_operand, asm_clobbers): Use
        asm_string instead of STRING.

2005-01-05  Joseph S. Myers  <joseph@codesourcery.com>

        * c-typeck.c (constructor_no_implicit): Remove.
        (set_designator, process_init_element): Don't check
        constructor_no_implicit.

2005-01-05  J"orn Rennecke <joern.rennecke@st.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/16482
        * lcm.c (create_pre_exit): New.
        (optimize_mode_switching): In MODE_ENTRY / MODE_EXIT case, set
        ENTRY_EXIT_EXTRA to 3.  Use create_pre_exit.

2004-01-05  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (TARGET_OPTIONS): Correctly record -mhard-float and
        -msoft-float in target_float_switch.
        * arm.c (arm_override_options): Fix processing of target_float_switch.

2004-01-05  Richard Earnshaw  <rearnsha@arm.com>

        * arm/vfp.md (arm_movsi_vfp): Hide VFP register classes from register
        preferencing.

2004-01-05  Uros Bizjak  <uros@kss-loka.si>

        * doc/invoke.texi (Intel 386 and AMD x86-64 Options):
        Replace i387 with 'i386 compiler' in -mfpmath=sse option.

2005-01-04  Roger Sayle  <roger@eyesopen.com>

        * ifcvt.c (find_if_case_1): Avoid creating an empty forwarder block,
        if deleting the then-block allows the test-block to fallthru to the
        else-block.

2005-01-04  Andrew Pinski  <pinskia@physics.uc.edu>

        PR c/19152
        * c-decl.c (diagnose_mismatched_decls): Accept "extern inline" declared
        after the full declaration if the are in two different TUs.

2005-01-04  Richard Henderson  <rth@redhat.com>

        PR tree-opt/19158
        * tree-sra.c (generate_one_element_init): Just
        call gimplify_and_add.
        (generate_element_init): Record the
        new referenced variables and mark them for renaming
        and split out to ...
        (generate_element_init_1): This.
        (scalarize_init): Don't call push_gimplify_context/
        pop_gimplify_context.

2005-01-04  Geoffrey Keating  <geoffk@apple.com>

        * toplev.c (get_src_pwd): Handle failure of getpwd().

2005-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_single_bit_test): Delete unreachable handling
        of TRUTH_NOT_EXPR.
        (fold): Don't call fold_single_bit_test with a TRUTH_NOT_EXPR, as
        all the cases handled by it are inverted by invert_truthvalue.

2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.md (save_register_windowdi): Add missing mode.
        (save_register_windowsi): Likewise.

2005-01-04  Richard Henderson  <rth@redhat.com>

        * tree-mudflap.c (mf_varname_tree): Fix thinko setting declname.

2005-01-04  Uros Bizjak  <uros@kss-loka.si>

        PR middle-end/17767
        * cse.c (fold_rtx) [RTX_COMPARE, RTX_COMM_COMPARE]: Don't attempt
        any simplifications of vector mode comparison operators.
        * simplify-rtx.c (simplify_relational_operation): Fix variable name.

2005-01-04  Paolo Bonzini  <bonzini@gnu.org>
            Devang Patel  <dpatel@apple.com>

        PR tree-optimization/18308
        * tree-if-conv.c (add_to_dst_predicate_list): Gimplify
        the operands before creating a new expression.
        * dojump.c (do_jump): Make drop_through_label available
        for all cases.  Add expansion of COND_EXPR.

2005-01-04  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Test for
        INTEGER_CST instead of TREE_CONSTANT.
        (vect_gen_niters_for_prolog_loop): Test for INTEGER_CST
        instead of TREE_CONSTANT.
        (vect_analyze_pointer_ref_access): Test for INTEGER_CST
        instead of TREE_CONSTANT.

2005-01-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * tree-eh.c (replace_goto_queue): Return early if the queue is empty.

2005-01-04  Uros Bizjak  <uros@kss-loka.si>

        PR target/19240
        * config/i386/i386.md (*fop_df_1_i387): Disable for TARGET_SSE_MATH.
        (*fop_df_1_i387): Disable for (TARGET_SSE2 && TARGET_SSE_MATH).

2005-01-03  Richard Henderson  <rth@redhat.com>

        * fold-const.c (force_fit_type): Cope with types larger than 2 HWI.
        (fold_convert_const_int_from_int, fold_convert_const_int_from_real,
        fold_convert_const_real_from_real): Split out from ...
        (fold_convert_const): ... here.

2005-01-03  Richard Henderson  <rth@redhat.com>

        PR target/19235
        * config/i386/i386.md (movdi_2): Separate SSE1 and SSE2 alternatives.
        (mov<MMXMODEI>_internal): Likewise.
        (movdf_nointeger): Prefer Y while not preferring, but allowing, x.
        Add V2SF case; use it for SSE1; don't use TI.
        (movdf_integer): Likewise.
        (mov<SSEMODEI>_internal, movti_internal): Force V4SF for SSE1.

2005-01-03  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (vect_strip_conversions): New function.
        (vect_analyze_offset_expr): Call vect_strip_conversions. Add
        check for binary class. 

2005-01-03  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR debug/17924
        Fix PR debug/19191
        * dwarf2out.c (block_ultimate_origin): Follow decl origin if origin
        is a decl.
        * gimple-low.c (mark_blocks_with_used_vars): New function.
        (mark_blocks_with_used_subblocks): Ditto.
        (mark_used_blocks): Ditto.
        (pass_mark_used_blocks): New pass.
        * tree-inline.c: Include debug.h.
        (expand_call_inline): Call outlining_inline_function here.
        * tree-optimize.c (init_tree_optimization_passes): Add
        pass_mark_used_blocks. 
        * tree-pass.h (pass_mark_used_blocks): New.
        * Makefile.in (tree-inline.o): Add debug.h dependency.

2005-01-03  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.c (darwin_handle_weak_import_attribute): Permit
        VAR_DECLs to have weak_import attribute.

        * config/rs6000/darwin-fallback.c: Use 'ucontext_t' rather than
        'struct ucontext'.

2004-01-03  Steven Bosscher  <stevenb@suse.de>

        * passes.c (rest_of_compilation): Don't run regmove if only
        flag_expensive_optimizations, require flag_regmove instead.

2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/litecoff.h (TARGET_OS_CPP_BUILTINS): Do not
        register "sparc".
        * config/sparc/sysv4-only.h (TARGET_OS_CPP_BUILTINS): Likewise.
        * config/sparc/rtemself.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.
        * config/sparc/sol2-64.h (TARGET_SUB_OS_CPP_BUILTINS): Delete.
        * config/sparc/sp64-elf.h (TARGET_SUB_OS_CPP_BUILTINS): Likewise.

2005-01-03  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (TARGET_VECTOR_MODE_SUPPORTED_P): New.
        (ia64_const_ok_for_letter_p): New.
        (ia64_const_double_ok_for_letter_p): New.
        (ia64_extra_constraint): New.
        (ia64_expand_vecint_compare): New.
        (ia64_expand_vcondu_v2si): New.
        (ia64_expand_vecint_cmov): New.
        (ia64_expand_vecint_minmax): New.
        (ia64_print_operand): Add 'v'.
        (ia64_preferred_reload_class): New.
        (ia64_vector_mode_supported_p): New.
        * config/ia64/ia64.h (UNITS_PER_SIMD_WORD): New.
        (PREFERRED_RELOAD_CLASS): Move to function.
        (CONST_OK_FOR_LETTER_P): Move to function.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Move to function.
        (CONSTRAINT_OK_FOR_Q, CONSTRAINT_OK_FOR_R): Remove.
        (CONSTRAINT_OK_FOR_S, CONSTRAINT_OK_FOR_T): Remove.
        (EXTRA_CONSTRAINT): Move to function.
        * config/ia64/ia64.md: Include vect.md.
        (itanium_class): Add mmalua.
        (type): Handle it.
        * config/ia64/itanium1.md (1_mmalua): New.  Add it to bypasses.
        (1b_mmalua): New.
        * config/ia64/itanium2.md (2_mmalua, 2b_mmalua): Similarly.
        * config/ia64/predicates.md (gr_reg_or_0_operand): Accept any
        CONST0_RTX.
        (const_int_2bit_operand): New.
        (fr_reg_or_0_operand): New.
        * config/ia64/ia64-modes.def: Add vector modes.
        * config/ia64/ia64-protos.h: Update.
        * config/ia64/vect.md: New file.

2005-01-03  Richard Henderson  <rth@redhat.com>

        * simplify-rtx.c (simplify_binary_operation): Handle VEC_CONCAT.

2005-01-03  Uros Bizjak  <uros@kss-loka.si>

        PR target/19236
        * config/i386/i386.c (log1psf2): Change mode of operands[0,1]
        to SFmode.
        (log1pdf2): Change mode of operands[0,1] to DFmode.

2005-01-03  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Define to false.
        * config/sparc/linux.h (SPARC_RELAXED_ORDERING): Define to true.
        * config/sparc/linux64.h (SPARC_RELAXED_ORDERING): Likewise.
        * config/sparc/sparc.c (TARGET_RELAXED_ORDERING): Define to
        SPARC_RELAXED_ORDERING.

2005-01-03  Richard Henderson  <rth@redhat.com>
            Uros Bizjak  <uros@kss-loka.si>

        PR target/14631
        * config/i386/i386.c (ix86_expand_builtin): [IX86_BUILTIN_PINSRW,
        IX86_BUILTIN_PINSRW128]: Fix wrong selector range in error message.
        * config/i386/i386.md (mmx_pinsrw, sse2_pinsrw): Fix selector
        handling.
        (*mmx_pinsrw, *sse2_pinsrw): New patterns.
        * config/i386/i386/predicates.md (const_pow2_1_to_8_operand,
        const_pow2_1_to_128_operand): New predicates.

2005-01-02  Greg McGary  <greg@mcgary.org>

        * tree-mudflap.c (mf_varname_tree): decl_printable_name handles
        anonymous decls.
        (mf_xform_derefs_1) [RESULT_DECL, STRING_CST]: Handle as innermost
        object.  [ptr_type]: Remove unused variable.
        Remember nearest addressable array-element or record-component
        when checking bitfield components.  Tolerate empty BIND_EXPR.

2005-01-01  Richard Henderson  <rth@redhat.com>

        * tree-vectorizer.c (vect_analyze_offset_expr): Strip conversions
        that don't narrow the value.  Fail for other conversions.

2005-01-01  Richard Henderson  <rth@redhat.com>

        PR c/19031
        * c-decl.c (pop_file_scope): Call maybe_apply_pending_pragma_weaks.
        * c-lang.c (finish_file): Don't do it here.
        * objc/objc-act.c (objc_finish_file): Likewise.

        * cgraph.c (decl_assembler_name_equal): New.
        (cgraph_node_for_asm, cgraph_varpool_node_for_asm): New.
        (cgraph_varpool_node): Actually link up cgraph_varpool_nodes.
        * cgraph.h (struct cgraph_varpool_node): Add next.
        (cgraph_node_for_asm, cgraph_varpool_node_for_asm): Declare.
        * varasm.c (assemble_alias): Mark the target as needed.

2005-01-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/19221
        * function.c (get_arg_pointer_save_area): Use entry_of_function
        instead of get_insns.

2005-01-01  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>
            James E. Wilson  <wilson@specifixinc.com>

        PR rtl-optimization/12092
        * loop.c (emit_prefetch_instructions): Do nothing if PREFETCH_BLOCK
        is zero.

2005-01-01  Roger Sayle  <roger@eyesopen.com>
            Olivier Hainque  <hainque@act-europe.fr>

        * tree.c (int_fits_type_p): A narrower type always fits in a
        wider one, except for negative values into unsigned types.

2005-01-01  Roger Sayle  <roger@eyesopen.com>

        * tree.c (int_fits_type_p): Compare the result of force_fit_type
        with the original constant rather than require TREE_OVERFLOW.

2005-01-01  Steven Bosscher  <stevenb@suse.de>

        PR middle-end/17544
        * c-decl.c (finish_function): If compiling C99, annotate the
        compiler generated return with the current file name and line 0.
        * tree-cfg.c (remove_useless_stmts_warn_notreached): Only warn if
        the source line is greater than 0.
        (remove_bb): Likewise.

See ChangeLog.12 for earlier changes.