gcc/
* config/mips/mips-opts.h (mips_cb_setting): New enum.
* config/mips/mips-protos.h: Add definitions for
mips_output_jump and mips_output_equal_conditional_branch
* gcc/config/mips/mips.c (MIPS_JR): Change to support the
JIC instruction.
(mips_emit_compare): Add support for the MIPS R6 conditional
compact branches.
(mips_process_sync_loop): Likewise.
(mips_output_order_conditional_branch): Likewise.
(mips16_build_call_stub): Change MIPS_CALL to
mips_output_jump.
(mips_print_operand_punctuation): Update 's' case to only
apply to micromips r2.
(mips_adjust_insn_length): Add support for forbidden slot
hazards.
(mips_avoid_hazard): Likewise.
(mips_reorg_process_insns): Likewise.
(mips_output_jump): New function.
(mips_output_equal_conditional_branch): Likewise.
(mips_output_conditional_branch): Use jrc/bc if compact
branch support is enabled. Ensure the forbidden slots
between the two branch instructions is filled with a nop.
(mips_option_override): Add support to process the compact
branch option and set the correct defaults. Prevent
non-explict relocs being using for MIPS R6.
(mips_trampoline_init): Add compact branch support.
(mips_mult_zero_zero_cost): Allow zero initialisation of
accumulators with TARGET_DSP.
* gcc/config/mips/mips.h (TARGET_CB_NEVER): New define.
(TARGET_CB_MAYBE): New define.
(TARGET_CB_ALWAYS): New define.
(ISA_HAS_DELAY_SLOTS): New define.
(ISA_HAS_COMPACT_BRANCHES): New define.
(ISA_HAS_JRC): New define.
(MIPS_BRANCH_C): New define.
(MIPS_CALL): Removed.
(MICROMIPS_J): Removed.
* config/mips/mips.md (compact_form): New attr.
(hazard): Add support for forbidden slots.
(define_delay): Add support for compact branches.
(*branch_order<mode>): Likewise.
(*branch_order<mode>_inverted): Likewise.
(*branch_equality<mode>): Likewise.
(*branch_equality<mode>_inverted): Likewise.
(*jump_absolute): Likewise.
(*jump_pic): Likewise.
(indirect_jump): Use mips_output_jump to produce assembly output.
(tablejump_<mode>"): Likewise.
(*<optab>"): Likewise.
(<optab>_internal): Likewise.
(sibcall_internal): Likewise.
(sibcall_value_internal): Likewise.
(sibcall_value_multiple_internal): Likewise.
(call_internal): Likewise.
(call_split): Likewise.
(call_internal_direct): Likewise.
(call_direct_split): Likewise.
(call_value_internal): Likewise.
(call_value_split): Likewise.
(call_value_internal_direct): Likewise.
(call_value_direct_split): Likewise.
(call_value_multiple_internal): Likewise.
(call_value_multiple_split): Likewise.
(mips_get_fcsr_mips16_<mode>): Likewise.
(mips_set_fcsr_mips16_<mode>): Likewise.
(tls_get_tp_mips16_<mode>): Likewise.
* config/mips/mips.opt: Add -mcompact-branches option.
* config/mips/predicates.md (order_operator): Ensure the
conditional compact branches are only used if the ISA them.
* doc/invoke.texi: Document -mcompact-branches option.
gcc/testsuite/
* gcc.target/mips/mips.exp (mips-dg-options): Handle the
dependencies between ISA level and compact-branches.
* gcc.target/mips/branch-10.c: Update expected output to allow
compact forms of b/bal.
* gcc.target/mips/branch-11.c: Likewise.
* gcc.target/mips/branch-12.c: Likewise.
* gcc.target/mips/branch-13.c: Likewise.
* gcc.target/mips/branch-3.c: Likewise.
* gcc.target/mips/branch-4.c: Likewise.
* gcc.target/mips/branch-5.c: Likewise.
* gcc.target/mips/branch-6.c: Likewise.
* gcc.target/mips/branch-7.c: Likewise.
* gcc.target/mips/branch-8.c: Likewise.
* gcc.target/mips/branch-9.c: Likewise.
* gcc.target/mips/branch-cost-1.c: Likewise.
* gcc.target/mips/call-1.c: Likewise.
* gcc.target/mips/call-2.c: Likewise.
* gcc.target/mips/call-3.c: Likewise.
* gcc.target/mips/call-4.c: Likewise.
* gcc.target/mips/call-5.c: Likewise.
* gcc.target/mips/call-6.c: Likewise.
* gcc.target/mips/lazy-binding-1.c: Likewise.
* gcc.target/mips/near-far-1.c: Likewise.
* gcc.target/mips/near-far-2.c: Likewise.
* gcc.target/mips/near-far-3.c: Likewise.
* gcc.target/mips/near-far-4.c: Likewise.
* gcc.target/mips/umips-branch-3.c: Ensure the test is
run with compact branches allowed.
* gcc.target/mips/compact-branches-1.c: New file.
* gcc.target/mips/compact-branches-2.c: Likewise.
* gcc.target/mips/compact-branches-3.c: Likewise.
* gcc.target/mips/compact-branches-4.c: Likewise.
* gcc.target/mips/compact-branches-5.c: Likewise.
* gcc.target/mips/compact-branches-6.c: Likewise.
* gcc.target/mips/compact-branches-7.c: Likewise.
Co-Authored-By: Andrew Bennett <andrew.bennett@imgtec.com>
From-SVN: r227385
2015-09-01 Vladimir Makarov <vmakarov@redhat.com>
PR target/61578
* lra-lives.c (process_bb_lives): Process move pseudos with the
same value for copies and preferences
* lra-constraints.c (match_reload): Create match reload pseudo
with the same value from single dying input pseudo.
From-SVN: r227382
2015-09-01 Steven G. Kargl <kargl@gcc.gnu.org>
* gfortran.dg/read_dir.f90: XFAIL this testcase on FreeBSD.
Clean-up a created directory if testcase fails.
From-SVN: r227381
2015-09-01 Richard Biener <rguenther@suse.de>
* expr.c (expand_expr_real_1): For expanding TERed defs
set the current location to that of the def if not UNKNOWN.
From-SVN: r227370
2015-08-31 Richard Biener <rguenther@suse.de>
lto/
* lto.c (compare_tree_sccs_1): Compare DECL_ABSTRACT_ORIGIN.
* lto-symtab.c (lto_symtab_merge): Merge DECL_POSSIBLY_INLINED flag.
(lto_symtab_prevailing_decl): Do not replace a decl that didn't
participate in merging with something else.
From-SVN: r227345
2015-08-31 Tom de Vries <tom@codesourcery.com>
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt)
(find_uses_to_rename_bb, find_uses_to_rename): Add and handle use_flags
parameter.
(find_uses_to_rename_def, find_uses_to_rename_in_loop): New function.
(rewrite_into_loop_closed_ssa_1): New function, factored out of ...
(rewrite_into_loop_closed_ssa): ... here.
(replace_uses_in_dominated_bbs): Remove function.
(rewrite_virtuals_into_loop_closed_ssa): Reimplement using
rewrite_into_loop_closed_ssa_1.
From-SVN: r227342
2015-08-31 Richard Biener <rguenther@suse.de>
lto/
* lto-symtab.c (lto_symtab_prevailing_decl): Remove redundant
test, do not replace a non-builtin with a builtin.
* lto.c (compare_tree_sccs_1): Do not merge things we stream
as builtins vs. non-builtins.
From-SVN: r227339
2015-08-31 Richard Biener <rguenther@suse.de>
* lto-streamer.h (lto_location_cache::cached_location::sysp): Add.
(lto_location_cache::current_sysp): Likewise.
(output_block::current_sysp): Likewise.
* lto-streamer-in.c (lto_location_cache::cmp_loc): Compare sysp.
(lto_location_cache::apply_location_cache): Properly record
system header locations.
(lto_location_cache::input_location): Input whether a file
is a system header.
* lto-streamer-out.c (lto_output_location): Stream whether a file
is a system header.
From-SVN: r227338
[gcc]
2015-08-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (swap_web_entry): Enlarge
special_handling bitfield.
(special_handling_values): Add SH_XXPERMDI and SH_CONCAT.
(rtx_is_swappable_p): Add handling for vec_select/vec_concat form
that represents a general xxpermdi.
(insn_is_swappable_p): Add handling for vec_concat of two
doublewords, which maps to a specific xxpermdi.
(adjust_xxpermdi): New function.
(adjust_concat): Likewise.
(handle_special_swappables): Call adjust_xxpermdi and
adjust_concat.
(dump_swap_insn_table): Handle SH_XXPERMDI and SH_CONCAT.
[gcc/testsuite]
2015-08-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* gcc.target/powerpc/swaps-p8-19.c: New test.
From-SVN: r227331
As PR67371 shows gcc currently rejects all throw statements in
constant-expressions, even when they are never executed.
PR c++/67371
* constexpr.c (potential_constant_expression_1): Remove IF_STMT
case. Move label to COND_EXPR case. Remove checking of
SWITCH_STMT_BODY.
From-SVN: r227323
2015-08-29 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/67367
* io/unix.c (buf_read): Check for error condition and if found
return the error code.
From-SVN: r227320
2015-08-29 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/46193
* omp-low.c (omp_reduction_init): Handle pointer type for min or max
clause.
* gcc.dg/autopar/pr46193.c: New test.
* testsuite/libgomp.c/pr46193.c: New test.
From-SVN: r227315
Matthew Fortune
James Bowman
Vladimir Makarov
Steven G. Kargl
Ilya Enkovich
Aldy Hernandez
Rainer Orth
Richard Biener
David Sherwood
Kyrylo Tkachov
Alan Lawrence
Nick Clifton
Paolo Carlini
Mike Frysinger
GCC Administrator
James Lemke
Ulrich Weigand
Francois-Xavier Coudert
Marc Glisse
Tom de Vries
Michael Matz
Michael Collison
Ian Lance Taylor
Bill Schmidt
Rich Felker
Markus Trippelsdorf
Jerry DeLisle
Anatoly Sokolov
Nathan Sidwell