* cse.c (simplify_relational_operation): If MODE specifies a
mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
is derived from the sign bit of the low word.
Brought over from r5900 branch.
From-SVN: r15454
* except.c (find_exception_handler_labels): Use xmalloc instead of
alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
in some cases.
From-SVN: r15452
* regmove.c (regmove_optimize): If we end up moving the
original insn due to lifetime overlaps, make sure to move
REG_NOTES too.
Fixes x86 (and maybe h8) failure.
From-SVN: r15435
* haifa-sched.c (add_branch_dependences): Make each insn in
a SCHED_GROUP_P block explicitly depend on the previous insn.
Fixes x86 abort.
From-SVN: r15430
* protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
defined. If not defined, include <sys/varargs.h> if
HAVE_SYS_VARARGS_H is defined.
* configure.in: Test for varargs.h and sys/varargs.h.
* configure: Regenerate with autoconf.
* config.in: Regenerate with autoheader.
From-SVN: r15420
* Makefile (compare): Exit with nonzero status if there
are comparison failures. Note which files failed the
comparison test in .bad_compare.
For toplevel "make bootstrap".
From-SVN: r15400
Fix problem reported by chris@lslsun.epfl.ch (Christian Iseli)
* emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
create new subreg.
From-SVN: r15391
* arc/arc.h: New file.
* arc/arc.c: New file.
* arc/arc.md: New file.
* arc/initfini.c: New file.
* arc/lib1funcs.asm: New file.
* arc/t-arc: New file.
* arc/xm-arc.h: New file.
* ginclude/va-arc.h: New file.
* ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
* ginclude/varargs.h: Likewise.
* Makefile.in (USER_H): Add va-arc.h.
* configure.in (arc-*-elf*): Recognize.
* longlong.h: Add ARC support.
Mostly so I can test changes in snapshot scripts.
* expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
when clearing non-BLKmode data.
Fixes sparc problem.
From-SVN: r15220
* v850.h (ASM_SPEC): Pass on target processor.
(CPP_PREDEFINES): Only define if not already specified.
(TARGET_VERSION): Only define if not already specified.
(MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
processor.
(EXTRA_SWITCHES): Extra entries in the switches array.
(TARGET_DEFAULT): Set default target processor.
From-SVN: r15180
* dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
prologue insn, only the first elt is significant.
(output_call_frame_info): For exception handling, always use 4-byte
fields as specified by the dwarf2 spec.
Don't skip trivial FDEs.
From-SVN: r15154
* version.c: Bump for snapshot.
* expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
when op1_is_pow2.
* final.c (shorten_branches): During first pass, assume worst
possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
* Makefile.in (distclean): Remove various things left around
by running the testsuite.
From-SVN: r15136
* configure.in (out_file): Emit definition to config.status in order
to have a defined value for configure.lang.
* configure: Re-built.
From-SVN: r15134
* sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
has integer TYPE_{MAX,MIN}_VALUE before using them.
Bring over from the FSF.
From-SVN: r15117
* integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
as initial value for real_label_map.
(copy_for_inline): Likewise.
Brought over from the FSF.
From-SVN: r15116
* reg-stack.c (subst_stack_regs): Pop the stack register for a
computed goto which sets the same stack register.
* reg-stack.c (compare_for_stack_reg): Swap only if the source and
destination are both on the regstack.
(subst_stack_regs_pat): Put the destination at the top of the regstack.
Bring over regstack bugfixes from the FSF.
From-SVN: r15096
* xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
* xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
* gcc.texi: Note that if you define sys_siglist that you should
also define SYS_SIGLIST_DECLARED.
autoconf doesn't handle finding sys_siglist under different names.
From-SVN: r15052
* local-alloc.c (contains_replace_regs): New function.
(update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
verify that there is no existing REG_EQUIV note, and add a call to
contains_place_regs.
From-SVN: r15041
* alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
is passed in.
* emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
SFmode for 64 bit hosts.
From-SVN: r15035
* version.c: Bump for snapshot.
Preparing for next snapshot.
* haifa-sched.c (move_insn): Handle notes correctly for insns
with SCHED_GROUP_P set.
Should fix some x86 failures with haifa enabled.
From-SVN: r15027
* pa.md (reload_peepholes): Make sure operand is a REG before
examining REGNO. Allow general registers too.
Fixes sporatic c-torture failure.
Remove last change to fold-const.c and c-decl.c
From-SVN: r15000
* version.c: Bump for latest snapshot.
* bc-optab.c: Conditionally include stdlib.h.
(free): Provide a declaration if NEED_DECLARATION_FREE.
* tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
* rtl.h (free): Remove declaration.
* tree.h (free): Remvoe declaration.
* configure: Rebuilt.
From-SVN: r14989
* flags.h (flag_move_all_movables): Declare.
(flag_reduce_all_givs): Likewise.
* loop.c (move_movables): Handle flag_move_all_movables.
(strength_reduce): Handle flag_reduce_all_givs.
* toplev.c (flag_move_all_movables): Define.
(flag_reduce_all_givs): Likewise.
(f_options): Add -fmove-all-movables and -freduce-all-givs.
* invoke.texi: Document new options, including alias stuff that
wasn't included last time.
Two of the "Tooning" options :-)
From-SVN: r14987
alpha linux glibc2 patch from H.J. Lu
* config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
if USE_GNULIBC_1 is not defined.
From-SVN: r14975
* reorg.c (dbr_schedule): Allow current_function_return_rtx
to be something other than a REG.
* function.c (expand_function_end): Fix current_function_return_rtx
if it was a pseudo.
Brought over from the fsf/devo.
From-SVN: r14972
* c-decl.c (grokdeclarator): If array index or size calculations
overflow, issue an error.
* fold-const.c (int_const_binop): New static function.
(const_binop, size_binop): Call it.
Brought over from the fsf.
From-SVN: r14967
* config/linux.h (CC1_SPEC): Define it only if not defined.
* config/m68k/linux.h (CC1_SPEC): Undefine it before include
<linux.h>
* config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
USE_GNULIBC_1 is not defined.
* config/alpha/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
as 1.
* config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): Ditto.
* config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
as 1 if USE_GNULIBC_1 is not defined.
Linux patches from HJ.
From-SVN: r14960
* i386.md (pop): pop increments the stack pointer.
(prologue_set_stack_ptr): New pattern.
* i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
instead of subsi3.
Fixes problem with scheduling on the x86.
From-SVN: r14956
* reload.c (find_reloads, case '0'): Reject matching a non-offsettable
address where an offsettable address is required.
Fixes 68k bootstrap problem.
From-SVN: r14948
* haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
(find_post_sched_live): Likewise.
Just cleaning up.
* haifa-sched.c (schedule_block): Remove old code to get arguments
from hard regs into pseudos early.
Avoids problems with bogus REG_LOOP_BEGIN notes causing aborts during
and after register allocation.
From-SVN: r14918
* version.c: Bump for new snapshot.
* local-alloc.c (update_equiv_regs): All the target to reject
promotion of some REG_EQUAL to REG_EQUIV notes.
* pa.h (DONT_RECORD_EQUIVALENCE): Define.
Fixes some c-torture failures, also improves generated code.
* pa.c (secondary_reload_class): (mem (mem ... )) does not need
secondary reloads.
Fixes 094.fpppp/twldrv.f abort.
* pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
store of the argument registers.
Fixes c-torture failure.
* fold-const.c (multiple_of_p): New function.
(fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
One of the performance patches from the g77 folks.
From-SVN: r14915
* unroll.c (find_splittable_givs): Only share if two givs have the
same add and multiply values.
Fixes some testsuite failures on the x86.
From-SVN: r14908
* pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
around branch tables.
* pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
and .end_brtab directives if TARGET_GAS.
Should fix bootstrap problem with PA port when not using gas.
From-SVN: r14899
* alias.c (find_base_value): Improve handling of PLUS, MINUS, and
LO_SUM.
(record_set): Handle LO_SUM like PLUS.
(init_alias_analysis): When following chains of base addresses,
do not stop on reaching a hard register.
Updates from jfc.
From-SVN: r14888
* alias.c (init_alias_analysis): When simplifying the reg_base_value
array, simplify entries for hard registers too.
From jfc. Fixes c-torture failure on the PA.
From-SVN: r14869
* configure.in: Turn on haifa by default for the PA.
* configure: Rebuilt.
* pa.c (override_options): Accept -mschedule=7200 option.
(pa_adjust_cost): No longer need to scale costs for newer
processors.
* pa.h (enum processor_type): Add PROCESSOR_7200.
* pa.md: Revamp scheduling parameters to work better with
haifa. Add scheduling parameters for the 7200.
From-SVN: r14850
* reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
* reload1.c: Undo bugfix from Aug 11.
Back out "simple" patch for PA reload bug and install the one accepted
by the FSF.
From-SVN: r14847
* Makefile.in (sub-makes): Pass the current value of LANGUAGES down
to sub-makes to avoid building more passes than the user might have
requested on the command line.
From Manfred Hollstein.
From-SVN: r14825
* configure.in: Expurgate `broken_install' (install is
autoconfed).
* configure.lang: Substitute autoconfed ${INSTALL} (not currently
relevant).
From Dave love.
From-SVN: r14823
* loop.c (is_power_of_2, is_conditional_branch): Delete unused
functions and declarations.
(analyze_loop_iterations): Use condjump_p.
(insert_bct): Likewise. Use exact_log2.
Just cleanup up some haifa code.
From-SVN: r14818
* version.c: Change the version string to look like:
egcs-1.0.0 970814 (gcc2-970802 experimental).
* gcc.c: Take out experimental snapshot warning message.
From-SVN: r14811
* version.c: Bump version to "gcc-3.0.0 970802 experimental".
* gcc.info*: Rebuilt.
* COPYING.g77, README.g77: New files.
* real.c (ereal_unto_float, ereal_unto_double): New functions.
* real.h (ereal_unto_float, ereal_unto_double): Declare them.
(REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
Get g77 to work with gcc3.
From-SVN: r14776
* gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
(process_command): Increment n_switches for them. Don't discard
their args. Validate them.
(main): Escape " marks when creating COLLECT_GCC_OPTIONS.
From Rohan Lenard.
(process_command): Set include_prefixes from COMPILER_PATH.
(main): Set COLLECT_GCC_OPTIONS sooner.
* confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
* tlink.c, hash.c, hash.h: New files.
* Makefile.in (USE_COLLECT2): Always use collect2.
(collect2): Depend on and link in hash.o and tlink.o.
(tlink.o, hash.o): Add dependencies.
tlink patches from Jason.
From-SVN: r14769
* Makefile.in (OBJS): Add alias.o
(alias.o): Add dependencies.
* alias.c: New file.
* sched.c: Remove alias analysis code. It lives in alias.c now.
(reg_last_uses_size): Declare.
(sched_analyze_2): Add new arguments to true_dependence.
(sched_analyze_insn): Use reg_last_uses_size instead of max_reg.
(schedule_block): Initialize reg_last_uses_size.
(schedule_insns): Always call init_alias_analysis.
* calls.c (expand_call): Note calls to malloc, calloc, and realloc;
mark return value from such functions as a pointer and keep track of
them for alias analysis. If a return value from a function is a
pointer, mark it as such.
* combine.c (distribute_notes): Handle REG_NOALIAS.
* cse.c (struct write_data): Delete. No longer needed.
(invalidate): Don't call set_nonvarying_address_components anymore.
Use true_dependence to decide if an entry should be removed from
the hash table.
(invalidate_memory): Remove WRITES argument, simplify appropriately.
Fix all callers.
(note_mem_written): Similarly for WRITE_PTR argument.
(invalidate_from_clobbers): Similarly for W argument.
(invalidate_for_call): Remove memory elements from the hash table.
(refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
(cse_rtx_varies_p): New function. Derived from old
cse_rtx_addr_varies_p.
(cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
Don't call note_mem_written anymore. Stack pushes invalidate the stack
pointer if PUSH_ROUNDING is defined. No longer need to call
cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
(skipped_writes_memory): Remove variable.
(invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
(invalidate_skipped_block): Simplify for new alias analysis code.
(cse_set_around_loop): Likewise.
(cse_main): Call init_alias_analysis.
* flags.h (flag_alias_check, flag_argument_noalias): Declare.
* toplev.c (flag_alias_check, flag_argument_noalias): Define.
(f_options): Add new alias checking arguments.
(main): Set flag_alias_check when optimizing.
* local_alloc (validate_equiv_mem_from_store): Add new arguments
to true_dependence.
(memref_referenced_p): Likewise.
* loop.c (NUM_STORES): Increase to 30.
(prescan_loop): Only non-constant calls set unknown_address_altered.
(invariant_p): Add new arguments to true_dependence.
(record_giv): Initialize unrolled and shared fields.
(emit_iv_add_mult): Call record_base_value as needed.
* loop.h (struct induction): Add unrolled and shared fields.
* unroll.c (unroll_loop): Call record_base_value as needed.
(copy_loop_body): Likewise.
(final_biv_value): Likewise.
(final_giv_value): Likewise.
(find_splittable_regs): Likewise. Only create one new pseudo
if we have multiple address GIVs that were combined with the same
dst_reg GIV. Note when a new register is created due to unrolling.
* rtl.c (reg_note_name): Add REG_NOALIAS.
* rtl.h (enum reg_note): Similarly.
(rtx_varies_p, may_trap_p, side_effects_p): Declare.
(volatile_refs_p, volatile_insn_p, remove_note): Likewise.
(note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
(true_dependence, read_dependence, anti_dependence): Likewise.
(output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
(mark_user_reg, mark_reg_pointer): Likewise.
jfc's alias analysis code.
From-SVN: r14768
to bootstrap again.
* reload1.c (reload): Sum needs for both OPADDR_ADDR and and
OPERAND_ADDRESS when computing how many registers an insn needs.
(reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
conflict.
(reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
OPADDR_ADDR reload.
(reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
in reload_reg_use_in_op_addr do not reach the end.
do not reach the end.
(reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
RELOAD_FOR_OPERAND_ADDRESS.
Start a new ChangeLog for gcc3.
From-SVN: r14767
Jeffrey A Law
Brendan Kehoe
Jeff Law
Manfred Hollstein
Jim Wilson
Fred Fish
Jim Wilson
H.J. Lu
Richard Kenner
Stan Cox
Nick Clifton
Weiwen Liu
Jason Merrill
Weiwen Liu
Jan-Jaap van der Heijden
Christian Kuehnke
Philippe De Muyter
J"orn Rennecke
Michael Meissner
Joel Sherrill
Robert Lipe
Torbjorn Granlund
Paul N. Hilfinger
Stephen Williams
David Edelsohn
Philipp Thomas
Andreas Schwab
Bob Manson
Richard Henderson
Doug Evans
Bernd Schmidt
Michael P. Hayes
John F. Carr
Dave Love
Doug Evans