2004-05-25 Paolo Bonzini <bonzini@gnu.org>
* Makefile.in (OBJS): Add rtlhooks.o.
(rtlanal.o): Depend on function.h.
(cse.o): Depend on rtlhooks-def.h.
(combine.o): Depend on rtlhooks-def.h.
(rtlhooks.o): New rule.
* combine.c: Include rtlhooks-def.h.
(nonzero_bits, cached_nonzero_bits, nonzero_bits1,
num_sign_bit_copies, cached_num_sign_bit_copies,
num_sign_bit_copies1): Move most of the code to rtlanal.c.
(reg_nonzero_bits_for_combine,
reg_num_sign_bit_copies_for_combine): New functions holding
the remnants of the above.
(combine_rtl_hooks): New.
(combine_instructions): Set rtl_hooks instead of gen_lowpart.
* cse.c: Include rtlhooks-def.h.
(cse_rtl_hooks): New.
(cse_main): Set rtl_hooks instead of gen_lowpart.
* emit-rtl.c (gen_lowpart): Remove.
(gen_lowpart_general): Move to rtlhooks.c.
* rtl.h (nonzero_bits, num_sign_bit_copies,
struct rtl_hooks, rtl_hooks, general_rtl_hooks): New.
(gen_lowpart_general): Remove.
(gen_lowpart): Temporarily redefine as a macro.
* rtlanal.c: Include function.h.
(nonzero_bits, cached_nonzero_bits, nonzero_bits1,
num_sign_bit_copies, cached_num_sign_bit_copies,
num_sign_bit_copies1): New, from combine.c.
* rtlhooks.c: New file.
From-SVN: r82234
2004-02-16 Geoffrey Keating <geoffk@apple.com>
* doc/md.texi (Insn Canonicalizations): Document left-chaining
in associative operators.
* rtlanal.c (commutative_operand_precedence): Create some new
variables. Prefer a commutative operand on the left, then
binary expressions, then NEG and NOT.
Index: testsuite/ChangeLog
2004-02-16 Geoffrey Keating <geoffk@apple.com>
* gcc.c-torture/compile/20040216-1.c: New.
From-SVN: r77945
* rtlanal.c (subreg_lsb_1): New function split out from subreg_lsb.
(subreg_lsb): Change to call new subreg_lsb_1 helper function.
* rtl.h (subreg_lsb_1): Prototype here.
* simplify-rtx.c (simplify_subreg): Optimize subregs of zero and
sign extensions.
Co-Authored-By: Paolo Bonzini <bonzini@gnu.org>
From-SVN: r76352
PR optimization/5263
* simplify-rtx.c (associative_constant_p): Delete.
(simplify_associative_operation): Rewrite to linearize terms, and
attempt to simplify new term against both left and right subterms.
(simplify_binary_operation): Call swap_commutative_operands_p on
op0 and op1, not trueop0 and trueop1. Move the initialization of
trueop0 and trueop1 down to where first needed.
(simplify_relational_operation): Likewise.
* rtlanal.c (commutative_operand_precedence): Also order constant
operands using avoid_constant_pool_reference.
From-SVN: r76179
* rtl.h (rtl_size): Declare.
(rtunion): Remove rtwint.
(rtx_def): Replace 'fld' with a union of an rtunion or a HOST_WIDE_INT.
(RTX_HDR_SIZE, RTX_SIZE): New macros.
(RTL_CHECK1): Adjust for new rtx_def layout.
(RTL_CHECK2, RTL_CHECKC1, RTL_CHECKC2): Likewise.
(XWINT, XCWINT): Likewise. Access the rtx structure directly.
(X0WINT): Remove.
(X0ANY): New macro.
* rtl.def: Adjust comments for new rtx_def layout.
* ggc.h (ggc_alloc_rtx): Take the rtx code as argument, not the
number of slots.
* rtl.c (rtx_size): New array.
(rtx_alloc): Adjust call to ggc_alloc_rtx. Use RTX_HDR_SIZE.
(copy_rtx): Use RTX_HDR_SIZE. Adjust for new rtx_def layout.
(shallow_copy_rtx): Adjust call to ggc_alloc_rtx. Use RTX_SIZE.
* integrate.c (copy_rtx_and_substitute): Use X0ANY to copy '0' fields.
* emit-rtl.c (copy_most_rtx): Likewise.
(copy_rtx_if_shared): Use RTX_SIZE.
(copy_insn_1): Use RTX_HDR_SIZE. Adjust for new rtx_def layout.
* gengenrtl.c (gendef): Adjust ggc_alloc_rtx call. Use RTX_HDR_SIZE.
* gengtype.c (write_rtx_next): Use RTX_HDR_SIZE.
(adjust_field_rtx_def): Expect "rtx_def" to be a union rather than
an array. Adjust output for new rtx_def layout.
* ggc-page.c (RTL_SIZE): Use RTX_HDR_SIZE.
* reload1.c (eliminate_regs): Use RTX_SIZE.
* rtlanal.c (loc_mentioned_in_p): Adjust for new rtx_def layout.
* gdbinit.in (pi): Likewise.
From-SVN: r72647
* cfgcleanup.c (merge_blocks_move_successor_nojumps): Use tablejump_p.
* rtlanal.c (tablejump_p): Use next_active_insn for finding the jump
table.
From-SVN: r69637
PR 8866
* rtl.h (MEM_NOTRAP_P): New.
(MEM_COPY_ATTRIBUTES): Copy it.
* rtlanal.c (may_trap_p): Check it.
* expr.c (do_tablejump): Set it.
* doc/rtl.texi (Flags): Document it.
* cfgrtl.c (try_redirect_by_replacing_jump): Revert last three changes.
From-SVN: r65967
* emit-rtl.c (subreg_hard_regno): Check that register is representable.
* reload.c (reload_inner_reg_of_subreg): When register is not
representable, reload the whole thing.
(find_reloads): Likewsie.
* rtlanal.c (subreg_representable_p): New function.
* profile.c (compute_branch_probabilities): Cleanup sanity checking;
allow negative probabilities for edges from the call to exit.
(branch_prob): Do not add fake edges for functions that may return twice
From-SVN: r65757
* rtl.h (subrtx_p): Renamed to rtx_referenced_p.
(rtx_pair): Added new element update_label_nuses, renamed to
replace_label_data.
* cfgcleanup.c (outgoing_edges_match, try_crossjump_to_edge): Use
replace_label_data instead of rtx_pair.
* loop.c (load_mems): Likewise.
* rtlanal.c (replace_label): Replace label in pool constants and in
INSN_LIST (in REG_LABEL note).
(subrtx_p): Renamed to rtx_referenced_p.
(subrtx_p_1): Renamed to rtx_referenced_p_1, compare the interior of
LABEL_REF with CODE_LABEL, traverse constants from pool.
From-SVN: r64419
* cselib.c (clear_table): Do not take argument; always clear just
used slots.
(cselib_process_insn): Update call of clear_table
(cselib_init): Do not call clear_table.
(cselib_finish): Clear table.
* cse.c (count_reg_usage): Do not check side_effects_p.
* rtlanal.c (set_noop_p): Check side_effects_p only when set looks
like noop.
(find_reg_equal_equiv_note): Do not use find_reg_note.
From-SVN: r64369
* cfgcleanup.c (outgoing_edges_match): Compare the jump tables.
(try_crossjump_to_edge): Replace refereces to one jump table by
references to identical jump table.
* loop.c (load_mems): Moved setting the JUMP_LABEL to replace_label.
(replace_label): Moved to rtlanal.c.
(struct rtx_pair): Moved to rtl.h.
* rtl.h (struct rtx_pair): Moved from loop.c.
(replace_label): New extern function.
(subrtx_p): New extern function.
(tablejump_p): New extern function.
* rtlanal.c (replace_label): Moved from loop.c.
(subrtx_p_1): New static function.
(subrtx_p): New function.
(tablejump_p): New function.
From-SVN: r64096
PR inline-asm/8832
* tree.h (expand_asm): New prototype.
* stmt.c (expand_asm): Set the MEM_VOLATILE_P flag if instructed
to do so.
* c-semantics (genrtl_asm_stmt): Pass the RID_VOLATILE qualifier
down to expand_asm.
* c-typeck.c (simple_asm_stmt): Set the RID_VOLATILE qualifier.
* rtlanal.c (volatile_insn_p) [ASM_INPUT]: Test the MEM_VOLATILE_P flag.
(volatile_refs_p) [ASM_INPUT]: Likewise.
(side_effects_p) [ASM_INPUT]: Likewise.
From-SVN: r61099
Jerry Quinn
Paolo Bonzini
Diego Novillo
James E Wilson
Andrew Pinski
Kazu Hirata
Josef Zlomek
Paul Brook
Geoffrey Keating
David Edelsohn
Jan Hubicka
Roger Sayle
Richard Sandiford
Andreas Jaeger
Nathan Sidwell
Kazu Hirata
Richard Henderson
Matt Kraai
Richard Henderson
Falk Hueffner
Eric Botcazou