+2001-04-05 Bernd Schmidt <bernds@redhat.com>
+
+ * sched-deps.c (sched_analyze_insn): Revert more of the March 27
+ change.
+
+2001-04-04 Zack Weinberg <zackw@stanford.edu>
+
+ * config.gcc: Remove default for xm_file. Clean up local
+ machine type handling. Remove settings of xm_file to
+ something that doesn't exist. In the big switch, set xm_file,
+ don't append to it (the value before the big switch is always
+ null). Don't force build_xm_file or host_xm_file to have a value.
+ * configure.in: Remove default for xm_file. Do not special
+ case $cpu/xm-$cpu.h not existing.
+ * configure: Regenerate.
+
+2001-04-04 Diego Novillo <dnovillo@redhat.com>
+
+ * simplify-rtx.c (simplify_binary_operation): Check for overflow
+ when folding integer division and modulo operations.
+
+2001-04-04 Andrew MacLeod <amacleod@redhat.com>
+
+ * dwarf2out.c (output_cfi): Add 'for_eh' parameter, use PTR_SIZE
+ instead of DWARF2_ADDR_SIZE for EH addresses.
+ (output_call_frame_info): Use PTR_SIZE instead of DWARF2_ADDR_SIZE for
+ EH addresses.
+
+2001-04-04 Richard Henderson <rth@redhat.com>
+
+ * config/ia64/ia64.h (IA64_UNWIND_INFO): Disable.
+ * config/ia64/t-glibc (LIB2ADDEH): Disable.
+ * config/ia64/t-ia64 (LIB2ADDEH): Disable.
+
+2001-04-04 Richard Henderson <rth@redhat.com>
+
+ * configure.in (gcc_cv_as_leb128): Escape "." in regexp.
+ * configure: Rebuilt.
+
+2001-04-04 Jakub Jelinek <jakub@redhat.com>
+
+ * gcse.c (delete_null_pointer_checks_1): Add delete_list argument,
+ push insns to delete to it instead of deleting them.
+ (delete_null_pointer_checks): Delete insns from delete_list after
+ all delete_null_pointer_checks_1 passes are done.
+
+2001-04-04 Richard Henderson <rth@redhat.com>
+
+ * configure.in (gcc_cv_as_leb128): Tweek minor number extraction.
+ * configure: Rebuilt.
+
+2001-04-04 Zack Weinberg <zackw@stanford.edu>
+
+ * expr.h: Remove #ifdef FUNCTION_CONVERSION_BUG logic.
+ * config/romp/xm-romp.h: Delete.
+
+2001-04-04 Bernd Schmidt <bernds@redhat.com>
+
+ * sched-deps.c (sched_analyze_insn): Partially revert March 27
+ change.
+
+2001-04-04 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
+
+ * emit-rtl.c (mark_label_nuses) Increment the label uses for
+ all labels present in rtx.
+ (try_split) Call new function for all split insns.
+
+2001-04-04 Jakub Jelinek <jakub@redhat.com>
+
+ * recog.c (validate_replace_rtx_1): Instead of aborting just make
+ sure the change won't be validated.
+
+Wed Apr 4 00:45:38 EDT 2001 John Wehle (john@feith.com)
+
+ * rtl.h (set_noop_p): Declare.
+ * flow.c (set_noop_p): Move from here ...
+ * rtlanal.c (set_noop_p): ... to here and enhance.
+ * cse.c (delete_trivially_dead_insns): Use it.
+ * gcse.c (hash_scan_set): Likewise.
+ * jump.c (delete_noop_moves): Likewise.
+ * recog.c (split_all_insns): Likewise.
+
+2001-04-04 Alan Modra <alan@linuxcare.com.au>
+
+ * dwarf2out.c (dwarf2out_frame_debug_expr): Support adjusting
+ stack pointer via a LO_SUM. Ditto for setting a temp register
+ used to save to the stack. Set cfa_temp when setting fp, and
+ allow matches to cfa_temp in addition to cfa_store when saving
+ regs. Handle POST_INC and LO_SUM register stores. Document the
+ changes and errors in rule 12 doco.
+
+ * pa.c (set_reg_plus_d, store_reg, load_reg): Return last insn.
+ (actual_fsize, local_fsize, save_fregs): Move for store_reg to see.
+ (load_reg): Move closer to epilogue code.
+ (DO_FRAME_NOTES): Define to control the following..
+ (FRP): Define to set RTX_FRAME_RELATED_P on insns.
+ (hppa_expand_prologue): Use FRP and REG_FRAME_RELATED_EXPR
+ notes as necessary.
+ (hppa_expand_epilogue): Likewise.
+
+2001-04-03 Richard Henderson <rth@redhat.com>
+
+ * configure.in (gcc_cv_as_leb128): Reject gas before 2.11.
+ * configure: Rebuild.
+
+2001-04-03 Richard Henderson <rth@redhat.com>
+
+ * rtl.h (LCT_THROW): New.
+ * calls.c (emit_library_call_value_1): Handle it.
+ * except.c (connect_post_landing_pads): Use it.
+
+2001-04-03 Zack Weinberg <zackw@stanford.edu>
+
+ * gansidecl.h: Delete file.
+ * configure.in: Change all refs to gansidecl.h to use
+ ansidecl.h. Adjust *_file_list so they know where ansidecl.h
+ lives.
+ * configure: Regenerate.
+
+ * Makefile.in (intl.o): Don't depend on gansidecl.h.
+ * defaults.h: s/gansidecl.h/ansidecl.h/ in comment.
+ * ggc.h, config/fr30/fr30.h, config/mcore/mcore.c:
+ Don't include gansidecl.h.
+ * intl.c, main.c, version.c, fixinc/fixlib.h,
+ fixinc/procopen.c, fixinc/server.c: Include ansidecl.h not
+ gansidecl.h.
+
+Tue Apr 3 19:41:21 CEST 2001 Jan Hubicka <jh@suse.cz>
+
+ * i386.c (ix86_force_to_memory, ix86_free_from_memory):
+ Update for 64bit.
+
+2001-04-03 Zack Weinberg <zackw@stanford.edu>
+
+ * config/i386/xm-beos.h, config/i386/xm-isc.h,
+ config/i386/xm-next.h, config/i386/xm-sco.h,
+ config/i386/xm-sco5.h, config/m68k/xm-plexus.h,
+ config/m88k/xm-m88k.h: Delete.
+
+ * config/i386/xm-djgpp.h: Don't define __MSDOS__.
+ * config/romp/xm-romp.h: Don't define bcopy.
+ * config/rs6000/xm-beos.h: Don't define bcopy, HAVE_VPRINTF,
+ HAVE_PUTENV, HAVE_RENAME, or USE_C_ALLOCA.
+
+ * config.gcc: Remove references to deleted files.
+
+ 14 xm-host.h remain, 1 xm-cpu.h.
+
+2001-04-03 Jakub Jelinek <jakub@redhat.com>
+ David S. Miller <davem@pierdol.cobaltmicro.com>
+ Andrew MacLeod <amacleod@redhat.com>
+
+ Use byte offsets in SUBREGs instead of words.
+
+ * alias.c (nonlocal_mentioned_p): Use subreg_regno function.
+ * caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
+ to pass new argument.
+ (add_stored_regs): Use subreg_regno_offset function.
+ * calls.c (expand_call): For non-paradoxical SUBREG take endianess
+ into account.
+ (precompute_arguments): Use gen_lowpart_SUBREG.
+ * combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
+ (combine_simplify_rtx): Rework to use SUBREG_BYTE.
+ (simplify_set): Rework to use SUBREG_BYTE.
+ (expand_field_assignment): Use SUBREG_BYTE.
+ (make_extraction): Use SUBREG_BYTE.
+ (if_then_else_cond): Use SUBREG_BYTE.
+ (apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
+ (gen_lowpart_for_combine): Compute full byte offset.
+ * cse.c (mention_regs): Use SUBREG_BYTE.
+ (remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
+ (canon_hash): Use SUBREG_BYTE.
+ (fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
+ (gen_lowpart_if_possible): Formatting.
+ * dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
+ correctly.
+ * dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
+ (mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
+ (loc_descriptor): Fixup explicit XEXP into SUBREG_REG
+ * dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
+ (output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
+ (output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
+ * emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
+ certain invariants about SUBREGs the compiler creates.
+ (gen_lowpart_SUBREG): New function.
+ (subreg_hard_regno): New function to get the final register number.
+ (gen_lowpart_common): Use SUBREG_BYTE.
+ (gen_imagpart): Spacing nits.
+ (subreg_realpart_p): Use SUBREG_BYTE.
+ (gen_highpart): Use SUBREG_BYTE.
+ (subreg_lowpart_p): Always compute endian corrected goal offset,
+ even at the byte level, then compare against that.
+ (constant_subword): New function, pulled out all constant cases
+ from operand_subword and changed second argument name to offset.
+ (operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
+ and call constant_subword to do the work. Return const0_rtx if
+ looking for a word outside of OP.
+ (operand_subword_force): Change second arg name to offset.
+ * expmed.c (store_bit_field): Use SUBREG_BYTE.
+ (store_split_bit_field): Use SUBREG_BYTE.
+ (extract_bit_field): Use SUBREG_BYTE.
+ (extract_split_bit_field): Use SUBREG_BYTE.
+ (expand_shift): Use SUBREG_BYTE.
+ * expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
+ * final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
+ * flow.c (set_noop_p): Use SUBREG_BYTE.
+ (mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
+ * function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
+ (fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
+ correction code.
+ (optimize_bit_field): Use SUBREG_BYTE.
+ (purge_addressof_1): Use SUBREG_BYTE.
+ (purge_single_hard_subreg_set): Use subreg_regno_offset function.
+ (assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
+ actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
+ * gengenrtl.c (special_rtx): Add SUBREG.
+ * global.c (mark_reg_store): Use SUBREG_BYTE.
+ (set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
+ * ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
+ * integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
+ final byte offset is congruent to subreg's mode size.
+ (subst_constants): Use SUBREG_BYTE.
+ (mark_stores): Use subreg_regno_offset function.
+ * jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
+ function and SUBREG_BYTE.
+ * local-alloc.c (combine_regs): Use subreg_regno_offset function.
+ (reg_is_born): Use subreg_hard_regno.
+ * recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
+ endian correction code. Don't combine subregs unless resulting
+ offset aligns with type. Fix subreg constant extraction for DImode.
+ Simplify SUBREG of VOIDmode CONST_DOUBLE.
+ (general_operand): Remove dead mode_altering_drug code.
+ (indirect_operand): Use SUBREG_BYTE.
+ (constrain_operands): Use subreg_regno_offset function.
+ * reg-stack.c (get_true_reg): Use subreg_regno_offset function.
+ * regmove.c (regmove_optimize): Use SUBREG_BYTE.
+ (optimize_reg_copy_3): Use gen_lowpart_SUBREG.
+ * regs.h (REG_SIZE): Allow target to override.
+ (REGMODE_NATURAL_SIZE): New macro which target can override.
+ * reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
+ on the entire subreg rtx.
+ (push_reload): Use SUBREG_BYTE in comments and code.
+ (find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
+ for hard registers inside subregs.
+ (operands_match_p): Use subreg_regno_offset.
+ (find_reloads): Use SUBREG_BYTE and only advance offset for subregs
+ containing hard regs.
+ (find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
+ corrections when fixing up MEM subregs.
+ (find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
+ subreg_regno_offset where appropriate.
+ (find_reloads_subreg_address): Use SUBREG_BYTE. Remove
+ byte endian corrections when fixing up MEM subregs.
+ (subst_reloads): When combining two subregs, make sure final
+ offset is congruent to subreg's mode size.
+ (find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
+ (refers_to_regno_for_reload_p): Use subreg_regno.
+ (reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
+ * reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
+ correction code for memory subreg fixups.
+ (forget_old_reload_1): Use subreg_regno_offset.
+ (choose_reload_regs): Use subreg_regno.
+ (emit_input_reload_insns): Use SUBREG_BYTE.
+ (reload_combine_note_store): Use subreg_regno_offset.
+ (move2add_note_store): Use subreg_regno_offset.
+ * resource.c (update_live_status, mark_referenced_resources): Use
+ subreg_regno function.
+ (mark_set_resources): Use subreg_regno function.
+ * rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
+ (subreg_regno_offset, subreg_regno): Define prototypes.
+ (subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
+ (gen_lowpart_SUBREG): Add prototype.
+ * rtl.texi (subreg): Update to reflect new byte offset representation.
+ Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
+ * rtlanal.c (refers_to_regno_p): Use subreg_regno.
+ (reg_overlap_mentioned_p): Use subreg_regno.
+ (replace_regs); Make sure final offset of combined subreg is
+ congruent to size of subreg's mode.
+ (subreg_regno_offset): New function.
+ (subreg_regno): New function.
+ * sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
+ * sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
+ * stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
+ * tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
+ (SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
+ * config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
+ (a29k_get_reloaded_address): Use SUBREG_BYTE.
+ (print_operand): Use SUBREG_BYTE.
+ * config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
+ * config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
+ (arm_reload_out_hi): Use SUBREG_BYTE.
+ * config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
+ instead of SUBREG_WORD.
+ (d30v_print_operand_memory_reference): Use subreg_regno_offset.
+ * config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
+ SUBREG creation to use byte offset.
+ * config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
+ inverted load insns): Fix explicit rtl subregs to use byte
+ offsets.
+ * config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
+ udivsi3, umodsi3): Generate SUBREGs with byte offsets.
+ * config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
+ * config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
+ to use byte offsets.
+ (unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
+ * config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
+ offsets, also make sure it is congruent to SUBREG's mode size.
+ (extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
+ unnamed ldob insn): Generate SUBREGs with byte offset.
+ (zero_extendqihi2): SUBREG's are byte offsets.
+ * config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
+ (m68hc11_gen_highpart): Use SUBREG_BYTE.
+ * config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
+ zero-extendqisi2): Generate SUBREGs with byte offset.
+ (umulsidi3, mulsidi3, subreghi1ashrdi_const32,
+ subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
+ subregs in rtl to use byte offsets.
+ * config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
+ * config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
+ (mips_move_2words): Use subreg_regno_offset.
+ (mips_secondary_reload_class): Use subreg_regno_offset.
+ * config/mips/mips.md (DImode plus, minus, move, and logical op
+ splits): Fixup explicit subregs in rtl to use byte offsets.
+ * config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
+ * config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
+ * config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
+ rtl to use byte offsets.
+ * config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
+ * config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
+ subregs to use byte offsets.
+ * config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
+ Fixup explicit subregs in rtl to use byte offsets.
+ * config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
+ and remove byte endian correction code.
+ * config/sh/sh.c (output_movedouble): Use subreg_regno.
+ (gen_ashift_hi): Use SUBREG_BYTE.
+ (regs_used): Use subreg_regno_offset.
+ (machine_dependent_reorg): Use subreg_regno_offset.
+ * config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
+ * config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
+ (movdf_i4): Subregs are byte offsets now.
+ * config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
+ * config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
+ (REGMODE_NATURAL_SIZE): Override.
+ (REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
+ * config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
+ with byte offsets.
+ (zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
+ extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
+ extendqidi2): Generate SUBREGs with byte offsets, also make sure
+ it is congruent to SUBREG's mode size.
+ (smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
+ offsets.
+ (cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
+ cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
+ lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
+ SUBREG_BYTE offset for non-paradoxical subregs in patterns.
+ * config/v850/v850.c (print_operand, output_move_double): Use
+ subreg_regno function.
+
2001-04-03 Alexandre Oliva <aoliva@redhat.com>
+ * configure.in (target_subdir): Use target_alias, not target.
+ * configure: Rebuilt.
+
* config/sh/crtn.asm (init, fini): Restore r15 from r14, not the
other way round.
* config/sh/crti.asm: Fix typos in comments.
output template.
* MAINTAINERS: Added self.
-
+
2001-03-28 Richard Henderson <rth@redhat.com>
* Makefile.in (cs-tconfig.h): Depend on CONFIG_H, not GCONFIG_H.
* tradcif.y (yyerror): Likewise. Add format specifier in call to
`error'.
-
+
* tradcpp.c (macroexpand): Likewise for call to `error_with_line'.
2001-03-28 DJ Delorie <dj@redhat.com>
(LTI_unwind_sjlj_register, LTI_unwind_sjlj_unregister): Add.
* final.c (final): Don't call check_exception_handler_labels,
init_insn_eh_region, or free_insn_eh_region.
- (final_scan_insn): Always emit debug labels for
+ (final_scan_insn): Always emit debug labels for
NOTE_INSN_EH_REGION notes.
* flags.h (flag_new_exceptions): Remove.
* flow.c (entry_exit_blocks): Remove eh_beg, eh_end.
(flow_delete_block): Use maybe_remove_eh_handler.
(delete_eh_regions): Remove.
(merge_blocks): Don't check for eh region match.
- (mark_regs_live_at_end): Handle EH_RETURN_DATA_REGNO,
+ (mark_regs_live_at_end): Handle EH_RETURN_DATA_REGNO,
EH_RETURN_STACKADJ_RTX, EH_RETURN_HANDLER_RTX.
(init_propagate_block_info): Disable dead frame store optimization
when current_function_calls_eh_return.
jump.c, toplev.c:
Rename asynchronous_exceptions to flag_non_call_exceptions.
- * gthr-single.h (UNUSED): New. Distinguish between how C
+ * gthr-single.h (UNUSED): New. Distinguish between how C
and C++ mark unused function arguments. Use throughout.
* Makefile.in (cs-tconfig.h): Copy USING_SJLJ_EXCEPTIONS
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