./ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure (skip-this-dir): Add handling for new shell script, which
might be created by a sub-directory's configure to indicate, this particular
directory is "unwanted".
* Makefile.in ($(CONFIGURE_TARGET_MODULES)): Likewise.
./gcc/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
which can be configured.
(LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
(Makefile): Pass actual LANGUAGES through the environment when
re-configuring.
(cstamp-h): Likewise.
(config.status): Likewise.
* configure.in (enable_languages): Add new configuration parameter
"--enable-languages=lang1,lang2,...".
(${srcdir}/*/config-lang.in): Change handling to configure only
those directories, that the user might have enabled; default to
"all" existing languages.
* configure: Regenerate.
./libchill/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libf2c/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libio/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
./libobjc/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
* configure: Regenerate.
./libstdc++/ChangeLog:1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
* configure.in (compiler_name): Add check to detect if this
language's compiler has been built.
From-SVN: r23892
* rtlanal.c (regs_set_between_p): New function.
* rtl.h (regs_set_between_p): Prototype it.
* jump.c (jump_optimize): Use it instead of modified_between_p
in the Sep 2 change.
From-SVN: r23888
* loop.h (precondition_loop_p): Added new mode argument.
* unroll.c (precondition_loop_p): Likewise.
(approx_final_value): Function deleted and subsumed
into loop_iterations.
(loop_find_equiv_value): New function.
(loop_iterations): Use loop_find_equiv_value to find increments
too large to be immediate constants. Also use it to find terms
common to initial and final iteration values that can be removed.
From-SVN: r23885
* loop.h (struct loop_info): Define new structure.
(precondition_loop_p): Added prototype.
(unroll_loop): Added new argument loop_info to prototype.
(final_biv_value, final_giv_value): Added new argument n_iterations
to prototype.
* loop.c (strength_reduce): Declare new structure loop_iteration_info
and new pointer loop_info.
(loop_n_iterations): Replace global variable by element in
loop_info structure.
(check_final_value): New argument n_iterations.
(insert_bct): New argument loop_info.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
(loop_optimize): Remove code to allocate and initialise
loop_unroll_factor_array.
* unroll.c (precondition_loop_p): No longer static since
used by branch on count optimization.
(precondition_loop_p, unroll_loop): New argument loop_info.
(final_biv_value, final_giv_value, find_splittable_regs): New
argument n_iterations.
(loop_iteration_var, loop_initial_value, loop_increment,
loop_final_value, loop_comparison_code, loop_unroll_factor):
Replaced global variables by loop_info structure.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
From-SVN: r23884
* loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
when loop reversed.
* unroll.c (precondition_loop_p): Return loop_initial_value
for initial_value instead of loop_iteration_var.
From-SVN: r23881
* config/c4x/c4x.md: Fix minor formatting problems. Update docs.
(*b, *b_rev, *b_noov, *b_noov_rev, *db,
decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
to output the instruction sequences.
(rpts): Delete.
(rptb_top): Provide alternatives to use any register or memory
for loop counter.
(rptb_end): Emit use of operands rather than assigning them
explicitly to the RS and RE registers.
From-SVN: r23880
* config/c4x/c4x.c: (c4x_override_options): For compatibility
with old target options clear flag_branch_on_count_reg if
-mno-rptb specified and set flag_argument_alias is -mno-aliases
specified.
(c4x_output_cbranch): Handle a sequence of insns rather than a
single insn.
(c4x_rptb_insert): Do not emit a RPTB insn if the RC register
has not been allocated as the loop counter.
(c4x_address_conflict): Do not allow two volatile memory references.
(valid_parallel_operands_4, valid_parallel_operands_5,
valid_parallel_operands_6): Reject pattern if the register destination
of the first set is used as part of an address in the second set.
From-SVN: r23879
* regclass.c (init_reg_sets): Move code that calculates tables
dependent on reg_class_contents from here...
(init_reg_sets_1): To here.
From-SVN: r23858
Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.h: Delete struct import_file. Add ihash element to
struct cpp_buffer. Delete dont_repeat_files and
import_hash_table elements from cpp_reader; change
all_include_files to a hash table. Delete all foobar_include
/ last_foobar_include elements from struct cpp_options; put
back four such: quote_include, bracket_include,
system_include, after_include. Redo struct file_name_list
completely. Add new structure type include_hash. Add
prototypes for merge_include_chains and include_hash. Change
prototypes for finclude, find_include_file, and
append_include_chain to match changes below.
* cppfiles.c (simplify_pathname, include_hash,
remap_filename, merge_include_chains): New functions.
(add_import, lookup_import, open_include_file): Removed.
(INO_T_EQ): Define this (copied from cccp.c).
(hack_vms_include_specification): Remove all calls and #if 0
out the definition. It was being called incorrectly and at
the wrong times. Until a VMSie can look at this, it's better
to not pretend to support it.
(append_include_chain): Change calling convention; now takes
only one directory at a time, and sets up the data structure
itself.
(redundant_include_p): Rewritten - this is now used for all
include redundancy, whether by #ifndef, #import, or #pragma
once. Looks up things in the include hash table.
(file_cleanup): Decrement pfile->system_include_depth here if
it's >0.
(find_include_file): Calling convention changed; now passes
around a struct include_hash instead of 3 separate parameters.
Guts ripped out and replaced with new include_hash mechanism.
(finclude): Calling convention changed as for
find_include_file. Error exits pulled out-of-line. Reformat.
(safe_read): Return a long, not an int.
(deps_output): Don't recurse.
* cpplib.c (is_system_include): Deleted.
(path_include): Fix up call to append_include_chain.
(do_include): Fix up calls to find_include_file and finclude.
Clean up dependency output a bit. Shorten obnoxiously lengthy
#import warning message. Don't decrement
pfile->system_include_depth here.
(do_pragma): Understand the include_hash structure. Reformat.
(do_endif): Correct handling of control macros. Understand
the include_hash.
(cpp_start_read): Fix up calls to finclude. Call
merge_include_chains.
(cpp_handle_option): Fix up calls to append_include_chain.
Understand the four partial include chains.
(cpp_finish): Add debugging code (#if 0-ed out) for the
include_hash.
(cpp_cleanup): Free the include_hash, not the import hash and
the all_include and dont_repeat lists which no longer exist.
From-SVN: r23857
* toplev.c (no_new_pseudos): Define.
(rest_of_compilation): Set no_new_pseudos as needed.
* emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
if no_new_pseudos is set.
* rtl.h (no_new_pseudos): Declare it.
* reload1.c (reload): Update comments.
* md.texi: Corresponding changes.
* reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
(choose_reload_regs): Rename it here as well. When computing it,
also merge in used hardregs.
From-SVN: r23855
* libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
The strategy we now use is to pre allocate the top_elt along
with the EH context so that each thread has its own top_elt.
This is necessary as the dynmanic cleanup chain is used on the
top element of the stack and each thread MUST have its own.
(eh_context_static): Likewise.
(new_eh_context): Likewise.
(__sjthrow): Likewise.
From-SVN: r23818
* config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
(___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
* sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
(fp_reg_names, assembler_dialect): New variables.
(print_operand_address): Handle SUBREGs.
(print_operand): Added 'o' case.
Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
Name of FP registers depends on mode.
(expand_block_move): Emit different code for SH4 hardware.
(prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
(from_compare): Likewise.
(add_constant): New argument last_value. Changed all callers.
(find_barrier): Don't try HImode load for FPUL_REG.
(machine_dependent_reorg): Likewise.
(sfunc_uses_reg): A CLOBBER cannot be the address register use.
(gen_far_branch): Emit a barrier after the new jump.
(barrier_align): Don't trust instruction lengths before
fixing up pcloads.
(machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
Use auto-inc addressing for fp registers if doubles need to
be loaded in two steps.
Set sh_flag_remove_dead_before_cse.
(push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
(pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
(calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
Support for FIRST_XD_REG .. LAST_XD_REG.
(sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
(sh_expand_epilogue): Likewise.
(sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
(initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
(arith_reg_operand): FPUL_REG is OK for SH4.
(fp_arith_reg_operand, fp_extended_operand) New functions.
(tertiary_reload_operand, fpscr_operand): Likewise.
(commutative_float_operator, noncommutative_float_operator): Likewise.
(binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
(emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
(expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
(emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
* sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
(CONDITIONAL_REGISTER_USAGE): Likewise.
(HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
(TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
(TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
(target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
(OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
to -1 and sh_flag_remove_dead_before_cse to 1.
(ASSEMBLER_DIALECT): Define to assembler_dialect.
(assembler_dialect, fp_reg_names): Declare.
(OVERRIDE_OPTIONS): Add code for TARGET_SH4.
Hide names of registers that are not accessible.
(CACHE_LOG): Take TARGET_CACHE32 into account.
(LOOP_ALIGN): Take TARGET_HARWARD into account.
(FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
(FIRST_PSEUDO_REGISTER: Now 49.
(FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
(HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
(HARD_REGNO_MODE_OK): Update.
(enum reg_class): Add DF_REGS and FPSCR_REGS.
(REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
(SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
(CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
(NPARM_REGS): Eight floating point parameter registers on SH4.
(BASE_RETURN_VALUE_REG): SH4 also passes double values
in floating point registers.
(GET_SH_ARG_CLASS) Likewise.
Complex float types are also returned in float registers.
(BASE_ARG_REG): Complex float types are also passes in float registers.
(FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
(LIBCALL_VALUE): Remove trailing semicolon.
(ROUND_REG): Round when double precision value is passed in floating
point register(s).
(FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
passed on the stack.
(FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
(FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
(TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
(INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
(MODE_DISP_OK_8): Not for SH4 DFmode.
(GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
Allow indexed addressing for PSImode after reload.
(LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
(LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
(DOUBLE_TYPE_SIZE): 64 for SH4.
(RTX_COSTS): Add PLUS case.
Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
(REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
MAC_REGS, PR_REGS, DF_REGS.
(REGISTER_NAMES): Use fp_reg_names.
(enum processor_type): Add PROCESSOR_SH4.
(sh_flag_remove_dead_before_cse): Declare.
(rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
(PREDICATE_CODES): Add binary_float_operator,
commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
fpscr_operand, noncommutative_float_operator.
(ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
(SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
* sh.md (attribute cpu): Add value sh4.
(attrbutes fmovd, issues): Define.
(attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
(function units memory, int, mpy, fp): Make dependent on issue rate.
(function units issue, single_issue, load_si, load): Define.
(function units load_store, fdiv, gp_fpul): Define.
(attribute hit_stack): Provide proper default.
(use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
(udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
(udivsi3, divsi3): Emit special patterns for SH4 hardware,
(mulsi3_call): Now uses match_operand for function address.
(mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
REG_RETVAL notes.
(push, pop, push_e, pop_e): Now define_expands.
(push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
(movsi_ie): Added y/i alternative.
(ic_invalidate_line_i, movdf_i4): New insns.
(movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
(reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
(movdf): Add special code for SH4.
(movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
(call_valuei, calli, call_value): Likewise.
(movsf): Emit no-op move.
(mov_nop, movsi_y): New insns.
(blt, sge): generalize to handle DFmode.
(return predicate): Call emit_fpscr_use and remove_dead_before_cse.
(block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
(block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
(fpu_switch0, fpu_switch1, movpsi): New expanders.
(fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
(toggle_sz): New insn.
(addsf3, subsf3, mulsf3, divsf3): Now define_expands.
(addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
(macsf3): Make use of fpscr visible. Disable for SH4.
(floatsisf2): Make use of fpscr visible.
(floatsisf2_i4): New insn.
(floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
(ieee_ccmpeqsf_t): Likewise.
(fix_truncsfsi2): Emit different code for SH4.
(fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
(cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
(negsf2, sqrtsf2, abssf2): Now expanders.
(adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
(negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
(muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
(fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
(fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
(fix_truncdfsi2_i4_2+1): New splitters.
(negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
(extendsfdf2, truncdfsf2): New expanders.
(truncdfsf2_i4): New insn.
* t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
(MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
* float-sh.h: When testing for __SH3E__, also test for
__SH4_SINGLE_ONLY__ .
* va-sh.h (__va_freg): Define to float.
(__va_greg, __fa_freg, __gnuc_va_list, va_start):
Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
(__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
(__PASS_AS_FLOAT): Use different definition for __SH4__ and
__SH4_SINGLE__.
(TARGET_SH4_P): Define.
(va_arg): Use it.
* sh.md (movdf_k, movsf_i): Tweak the condition so that
init_expr_once is satisfied about the existence of load / store insns.
* sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
change m constraint in source operand to mr / mf .
* va-sh.h (__va_arg_sh1): Use __asm instead of asm.
* (__VA_REEF): Define.
(__va_arg_sh1): Use it.
* va-sh.h (va_start, va_arg, va_copy): Add parenteses.
From-SVN: r23777
* function.c (nonlocal_goto_handler_slots): Renamed from
nonlocal_goto_handler_slot; now an EXPR_LIST chain.
(push_function_context_to): Adjust for this change.
(pop_function_context_from): Likewise.
(init_function_start): Likewise.
(expand_function_end): Likewise.
* function.h (struct function): Likewise.
* calls.c (expand_call): Likewise.
* explow.c (allocate_dynamic_stack_space): Likewise.
* expr.h (nonlocal_goto_handler_slots): Rename its declaration.
* stmt.c (declare_nonlocal_label): Make a new handler slot for each
label.
(expand_goto): When doing a nonlocal goto, find corresponding handler
slot for it. Don't put the label address in the static chain register.
(expand_end_bindings): Break out nonlocal goto handling code into
three new functions.
(expand_nl_handler_label, expand_nl_goto_receiver,
expand_nl_goto_receivers): New static functions, broken out of
expand_end_bindings and adapted to create one handler per nonlocal
label.
* function.c (delete_handlers): Delete insn if it references any of
the nonlocal goto handler slots.
* i960.md (nonlocal_goto): Comment out code that modifies
static_chain_rtx.
* sparc.md (nonlocal_goto): Likewise.
(goto_handler_and_restore_v9): Comment out.
(goto_handler_and_restore_v9_sp64): Comment out.
From-SVN: r23732
* expr.c (STACK_BYTES): Delete unused macro.
* calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(expand_call): Likewise.
(emit_library_call): Likewise.
(emit_library_call_value): Likewise.
* function.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
* explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
(round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(allocate_dynamic_stack_space): Likewise.
* tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
(STACK_BOUNDARY): Update description to reflect the new situation.
From-SVN: r23730
* reorg.c (relax_delay_slots): When optimizing for code size, if a
return with a filled delay slot is followed by a return with an
unfilled delay slot, delete the first return and reemit the insn
that was previously in its delay slot.
From-SVN: r23729
Manfred Hollstein
Richard Henderson
Ian Dall
Tom Tromey
Michael Hayes
Stephen L Moshier
J"orn Rennecke
Zack Weinberg
Jeff Law
Graham Stott
Jeffrey A Law
Jim Wilson
Nick Clifton
Mike Stump
Jason Merrill
Geoffrey Noer
Ulrich Drepper
Gavin Romig-Koch
Kaveh R. Ghazi
Melissa O'Neill
Bernd Schmidt
Joern Rennecke