* tree.h (maybe_fold_offset_to_component_ref): Remove.
(maybe_fold_offset_to_reference): Declare.
* fold-const.c (fold_unary): Do not fold
(type *)&A into &A->field_of_type_and_offset_0
* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): When base type
size is unknown, give up.
(maybe_fold_offset_to_component_ref): Ignore firelds with unknown
offsets.
(maybe_fold_offset_to_reference): New.
(maybe_fold_stmt_indirect): Use it.
(fold_stmt_r): Fold (type *)&A+offset into A->field_if_type_and_offset.
* gimplify.c (gimplify_conversion): Canonicalize conversions to
field references.
(gimplify_expr): Likewise for plus_expr.
From-SVN: r124323
* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Use
bsi_after_labels. Always insert statements before bsi.
* tree-vect-transform.c (vect_create_epilog_for_reduction): Ditto.
* predict.c (apply_return_prediction): Check for empty blocks.
* cfgexpand.c (lab_rtx_for_bb): New variable.
(label_rtx_for_bb): Do not create new tree labels.
(expand_gimple_basic_block): Add labels recorded in lab_rtx_for_bb.
(tree_expand_cfg): Initialize lab_rtx_for_bb.
* tree-cfg.c (build_tree_cfg): Call cleanup_dead_labels after
creating edges.
(label_for_bb): Add field used.
(update_eh_label, main_block_label): Mark the label used.
(cleanup_dead_labels): Remove unused labels.
From-SVN: r124322
2007-05-01 Richard Guenther <rguenther@suse.de>
* tree-vrp.c (set_value_range): Do not allocate equiv bitmap
if it is not about to be set.
(get_value_range): Do not pre-allocate equiv bitmap.
(update_value_range): No need to clear equiv field.
(add_equivalence): Change prototype to get bitmap pointer.
Allocate bitmap here if it is not already.
(extract_range_from_assert): Do not allocate bitmap here.
Update callers to add_equivalence.
(extract_range_from_ssa_name): Likewise.
(get_vr_for_comparison): New static helper.
(compare_name_with_value): Handle NULL equiv bitmap by
peeling the first iteration of the comparison loop.
Use get_vr_for_comparison.
(compare_names): Handle NULL equiv bitmaps by using fake
ones. Use get_vr_for_comparison.
From-SVN: r124321
* double-int.c (mpz_set_double_int): Moved from
tree-ssa-loop-niter.c.
(mpz_get_double_int): Likewise; also, add option to wrap
out-of-range integers.
* double-int.h: New prototypes for above.
* tree.c (get_static_type_bounds): Moved from
tree-ssa-loop-niter.c; now returns TYPE_MIN_VALUE and
TYPE_MAX_VALUE if they exist..
* tree.h: New prototype for above.
* tree-ssa-loop-niter.c: Adjust mpz_to_double_int and
get_type_bounds calls.
(mpz_set_double_int): Move to double-int.c.
(get_type_bounds): Move to tree.c, rename to
get_static_type_bounds.
(mpz_to_double_int): Move to double-int.c, rename to
mpz_get_double_int.
From-SVN: r124304
PR middle-end/22156
Temporarily revert:
2007-04-06 Andreas Tobler <a.tobler@schweiz.org>
2007-04-05 Alexandre Oliva <aoliva@redhat.com>
* tree-sra.c (try_instantiate_multiple_fields): Needlessly
initialize align to silence bogus warning.
2007-04-05 Alexandre Oliva <aoliva@redhat.com>
* tree-sra.c (struct sra_elt): Add in_bitfld_block. Remove
all_no_warning.
(struct sra_walk_fns): Remove use_all parameter from use.
(sra_hash_tree): Handle BIT_FIELD_REFs.
(sra_elt_hash): Don't hash bitfld blocks.
(sra_elt_eq): Skip them in parent compares as well. Handle
BIT_FIELD_REFs.
(sra_walk_expr): Don't maintain or pass down use_all_p.
(scan_use): Remove use_all parameter.
(scalarize_use): Likewise. Re-expand assignment to
BIT_FIELD_REF of gimple_reg. De-scalarize before input or
output, and re-scalarize after output. Don't mark anything
for no warning.
(scalarize_ldst): Adjust.
(scalarize_walk_gimple_modify_statement): Likewise.
(build_element_name_1): Handle BIT_FIELD_REFs.
(instantiate_element): Don't warn for any element whose parent
is used as a whole.
(instantiate_missing_elements_1): Return the sra_elt.
(canon_type_for_field): New.
(try_instantiate_multiple_fields): New.
(instantiate_missing_elemnts): Use them.
(mark_no_warning): Removed.
(generate_one_element_ref): Handle BIT_FIELD_REFs.
(REPLDUP, sra_build_elt_assignment): New.
(generate_copy_inout): Use them.
(generate_element_copy): Likewise. Handle bitfld differences.
(generate_element_zero): Don't recurse for blocks. Use
sra_build_elt_assignment.
(generate_one_element_int): Take elt instead of var. Use
sra_build_elt_assignment.
(generate_element_init_1): Adjust.
(scalarize_use, scalarize_copy): Use REPLDUP.
(scalarize_ldst): Move assert before dereference.
(dump_sra_elt_name): Handle BIT_FIELD_REFs.
From-SVN: r124302
2007-04-30 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR C++/31721
* tree.c (reconstruct_complex_type): Reconstruct a reference
correctly.
Also use the same mode for the pointer as the old pointer type.
2007-04-30 Andrew pinski <andrew_pinski@playstation.sony.com>
PR C++/31721
* g++.dg/ext/vector7.C: New testcase.
From-SVN: r124300
PR target/31701
* config/sh/sh.c (output_stack_adjust): Avoid using the frame
register itself to hold the offset constant. Tell flow the use
of r4 and r5 when they are used.
From-SVN: r124248
2007-04-27 Richard Guenther <rguenther@suse.de>
* tree-ssa-forwprop.c (forward_propagate_into_cond): Keep track
if we simplified anything.
(tree_ssa_forward_propagate_single_use_vars): Defer overflow
warnings until we did a simplification and the stmt was not
marked as TREE_NO_WARNING.
From-SVN: r124242
./: PR middle-end/31710
* tree.c (build_distinct_type_copy): If TYPE_MIN_VALUE or
TYPE_MAX_VALUE exist, convert them to the new type.
testsuite/:
PR middle-end/31710
* gcc.c-torture/compile/pr31710.c: New test.
From-SVN: r124237
* tree-cfgcleanup.c (cleanup_tree_cfg): Verify dominance info
if it claims to be available.
* tree-ssa-dce.c (remove_dead_stmt): Mark cfg as altered when
edge is redirected.
(perform_tree_ssa_dce): Always free postdominators.
From-SVN: r124236
2007-04-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/31715
* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make
sure to do computation on the offset in an appropriate
signed type.
* gcc.dg/Warray-bounds-4.c: New testcase.
From-SVN: r124216
gcc/
* reload.h (elimination_target_reg_p): Declare.
* reload.c (find_reloads): Don't apply the reg_rtx move
optimization if the SET_DEST satisfies elimination_target_reg_p.
* reload1.c (elimination_target_reg_p): New function.
(gen_reload): In the move/add2 fallback, make sure that op0
does not overlap the destination register.
From-SVN: r124215
* tree-ssa-loop-im.c (determine_invariantness_stmt): Attempt to
transform only GIMPLE_MODIFY_STMTs.
* tree-complex.c (expand_complex_operations_1): Ditto.
(expand_complex_div_wide): Do not create gotos in COND_EXPR branches.
* tree-ssa-loop-manip.c (build_if_stmt): Removed.
(tree_transform_and_unroll_loop): Do not create gotos in COND_EXPR
branches.
* value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
tree_mod_subtract, tree_ic, tree_stringop_fixed_value): Ditto.
* omp-low.c (expand_parallel_call, expand_omp_for_generic,
expand_omp_for_static_chunk, expand_omp_for_static_nochunk): Ditto.
* tree-vectorizer.c (slpeel_make_loop_iterate_ntimes,
slpeel_add_loop_guard): Ditto.
* tree-mudflap.c (mf_build_check_statement_for): Ditto.
* lambda-code.c (perfect_nestify): Ditto.
* tree-iterator.c (tsi_split_statement_list_before): Fix splitting
before the first statement.
* tree-optimize.c (execute_free_datastructures): Fix comments.
(execute_free_cfg_annotations): Do not call disband_implicit_edges.
* tree-flow.h (disband_implicit_edges): Declaration removed.
* tree-cfg.c (make_cond_expr_edges): Remove gotos from COND_EXPR
branches.
(cleanup_dead_labels, tree_redirect_edge_and_branch): Handle COND_EXPRs
without gotos.
(disband_implicit_edges, has_label_p): Removed.
(tree_verify_flow_info): Verify that COND_EXPR branches are empty.
(tree_lv_add_condition_to_bb): Do not create gotos in COND_EXPR
branches.
* tree.c (build3_stat): Mark COND_EXPRs used as statements as having
side effects.
* tree-pretty-print.c (dump_implicit_edges): Dump implicit edges
also for COND_EXPRs.
* cfgexpand.c (label_rtx_for_bb): New function.
(expand_gimple_cond_expr): Do not expect gotos in COND_EXPR branches.
Use label_rtx_for_bb to find the labels.
(expand_gimple_basic_block): Remove RETURN_EXPR at the end of the
last block. Detect fallthru edges.
From-SVN: r124214
gcc/:
PR target/28675
* reload.c (find_reloads_subreg_address): If the address was valid
in the original mode but not in the new mode, reload the whole
address.
testsuite/:
PR target/28675
* gcc.c-torture/compile/pr28675.c: New test.
From-SVN: r124211
* tree-cfgcleanup.c (cfgcleanup_altered_bbs): New global variable.
(remove_fallthru_edge): Use remove_edge_and_dominated_blocks.
(cleanup_control_expr_graph): Do not invalidate dominance info.
Record altered blocks.
(cleanup_control_flow, cleanup_forwarder_blocks): Removed.
(cleanup_control_flow_bb, split_bbs_on_noreturn_calls,
cleanup_tree_cfg_bb): New functions.
(remove_forwarder_block): Do not maintain the worklist of blocks.
Record altered blocks.
(cleanup_tree_cfg_1): Iterate over cfgcleanup_altered_bbs,
not over whole cfg.
(cleanup_tree_cfg): Do not iterate cleanup_tree_cfg_1. Only call
delete_unreachable_blocks if dominators are not available.
* tree-inline.c (optimize_inline_calls): Free dominance information
earlier.
* tree-flow.h (remove_edge_and_dominated_blocks,
cfgcleanup_altered_bbs): Altered.
* tree-cfg.c (replace_uses_by, tree_merge_blocks): Record altered
blocks.
(get_all_dominated_blocks, remove_edge_and_dominated_blocks): New
functions.
(tree_purge_dead_eh_edges): Use remove_edge_and_dominated_blocks,
do not invalidate dominators.
From-SVN: r124203
2007-04-26 Richard Guenther <rguenther@suse.de>
PR tree-optimization/31703
* tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
the right type for the target of the bittest.
* gcc.c-torture/compile/pr31703.c: New testcase.
* gcc.dg/tree-ssa/ssa-lim-1.c: Adjust pattern.
* gcc.dg/tree-ssa/ssa-lim-2.c: Likewise.
From-SVN: r124190
gcc/
200x-xx-xx Richard Sandiford <richard@codesourcery.com>
Mark Mitchell <mark@codesourcery.com>
* config/i386/i386-protos.h (ix86_sol10_return_in_memory): Declare.
* config/i386/i386.c (ix86_sol10_return_in_memory): New function.
* config/i386/sol2-10.h (RETURN_IN_MEMORY): Use it.
Co-Authored-By: Mark Mitchell <mark@codesourcery.com>
From-SVN: r124176
gcc/
PR driver/31107
* doc/invoke.texi (%:print-asm-header): Document.
* gcc.c (asm_options): Use %:print-asm-header() for --target-help
and -ftarget-help.
(static_spec_functions): Add print-asm-header.
(main): Print a banner before the --target-help linker options.
(print_asm_header_spec_function): New function.
From-SVN: r124175
* real.c (mpfr_from_real): Handle Inf and NaN, and allow the
rounding mode to be specified by the caller.
(real_to_mpfr) Likewise.
* real.h: Update mpfr_from_real, mpfr_to_real prototypes to
include new arguments.
* builtins.c: Update mpfr_from_real, mpfr_to_real calls.
From-SVN: r124139
./: PR tree-optimization/31605
* tree-vrp.c (set_value_range): Check that min and max are not
both overflow infinities.
(set_value_range_to_value): New static function.
(extract_range_from_binary_expr): Call set_value_range_to_value.
(extract_range_from_cond_expr): Likewise.
(extract_range_from_expr): Likewise.
(extract_range_from_unary_expr): Likewise. Don't create a range
which overflows on both sides.
(vrp_meet): Check for a useless range.
(vrp_visit_phi_node): If we see a constant which looks like an
overflow infinity, turn off the TREE_OVERFLOW flag.
testsuite/:
PR tree-optimizatoin/31605
* gcc.c-torture/execute/pr31605.c: New test.
From-SVN: r124128