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* tree.h (struct tree_decl): Add gimple_formal_temp.
(DECL_GIMPLE_FORMAL_TEMP_P): New.
* gimplify.c (pop_gimplify_context): Clear it.
(lookup_tmp_var): Set it, if is_formal.
(gimplify_init_constructor): Use rhs_predicate_for for COMPLEX.
Use is_gimple_val for VECTOR. Simplify return value.
(gimplify_save_expr): Use and set DECL_GIMPLE_FORMAL_TEMP_P.
(gimplify_expr): Likewise.
* tree-gimple.c (is_gimple_formal_tmp_rhs): Rename from
is_gimple_tmp_rhs for clarity. Update all callers.
(is_gimple_reg_rhs): Simplify logic.
(is_gimple_formal_tmp_var): Rename from is_gimple_tmp_var for
clarity; use DECL_GIMPLE_FORMAL_TEMP_P.
(is_gimple_formal_tmp_reg): Similarly.
* tree-gimple.h: Update decls.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Use
DECL_IGNORED_P, not DECL_ARTIFICIAL. Tidy formatting.
* tree-ssa-live.c (var_union, type_var_init): Likewise.
java/
* java-gimplify.c (java_gimplify_expr): Move '2' handling into
default case. Treat '<' similarly. Update for
is_gimple_formal_tmp_var name change.
testsuite/
* gcc.dg/20040206-1.c: XFAIL.
From-SVN: r86176
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variables, not is_gimple_tmp_var.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce):
Check for arificial variables, not is_gimple_tmp_var.
* tree-ssa-live.c (var_union): Likewise.
From-SVN: r86057
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right after the program is renamed into SSA.
* tree-optimize.c (init_tree_optimization_passes): Schedule
pass_may_alias right after the program is renamed into SSA.
* tree-pass.h (PROP_alias): Define.
* tree-outof-ssa.c (pass_del_ssa): Require PROP_alias.
* tree-sra.c (pass_sra): Likewise.
* tree-ssa-ccp.c (pass_ccp): Likewise.
* tree-ssa-copyrename.c (pass_rename_ssa_ccp): Likewise.
* tree-ssa-dce.c (pass_dce): Likewise.
* tree-ssa-dom.c (pass_dominator): Likewise.
* tree-ssa-dse.c (pass_dse): Likewise.
* tree-ssa-forwprop.c (pass_forwprop): Likewise.
* tree-ssa-loop-ch.c (pass_ch): Likewise.
* tree-ssa-phiopt.c (pass_phiopt): Likewise.
* tree-ssa-pre.c (pass_pre): Likewise.
* tree-tailcall.c (pass_tail_recursion): Likewise.
* tree-ssa.c (pass_redundant_phi): Likewise.
* tree-ssa-alias.c (aliases_computed_p): Remove.
Update all users.
(init_alias_info): Do not mark all type tags for renaming
unconditionally.
Clear may_aliases from every symbol.
(setup_pointers_and_addressables): If a pointer has not been
dereferenced and it had a type tag, clear it and mark the old
tag for renaming.
testsuite/ChangeLog
* gcc.dg/tree-ssa/20030714-2.c: Adjust number of expected
conditionals.
* gcc.dg/tree-ssa/20031022-1.c: Adjust number of expected
loads.
* gcc.dg/tree-ssa/ssa-dom-cse-1.c: Expect optimization in
DOM1.
From-SVN: r85255
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PR tree-optimization/16688
PR tree-optimization/16689
* tree-ssa-alias.c (setup_pointers_and_addressables): Remove
unnecessary initialization of 'tag'.
(get_tmt_for): Check that the new type tag has the same alias
set as the pointed-to type.
(group_aliases): Only regular variables need to be removed
from the alias set of a name tag.
* tree-ssa-copy.c (may_propagate_copy): Do not allow copy
propagation if the two types are not compatible.
(merge_alias_info): Rename from replace_ssa_names_ann.
Add more checking.
(replace_exp_1): If both arguments are SSA_NAMEs, check that
the propagation can be done.
Only call merge_alias_info on pointers.
(propagate_value): Likewise.
* tree-ssa-copyrename.c: Include langhooks.h.
(copy_rename_partition_coalesce): Call replace_ssa_name_symbol
to do the merging.
Do not coalesce variables with incompatible types.
(rename_ssa_copies): Call replace_ssa_name_symbol.
* tree-ssa.c (verify_ssa_name): Verify that the SSA_NAME has
the same type as the underlying _DECL.
* tree-ssanames.c (replace_ssa_name_symbol): New function.
* tree.h (replace_ssa_name_symbol): Declare.
From-SVN: r85108
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* tree-flow.h (struct var_ann_d): Remove has_hidden_use.
* gimple-low.c (expand_var_p): Don't check it.
* tree-ssa-alias.c (setup_pointers_and_addressables): Likewise.
* tree-ssa-copyrename.c (rename_ssa_copies): Likewise.
* tree-ssa-operands.c (add_stmt_operand): Likewise.
* tree-dfa.c (find_hidden_use_vars, find_hidden_use_vars_r): Kill.
(find_referenced_vars): Don't call them.
* tree-flow-inline.h (has_hidden_use, set_has_hidden_use): Kill.
From-SVN: r84830
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* tree.h (PHI_CHAIN): New.
* (tree-cfg.c, tree-dfa.c, tree-flow-inline.h, tree-into-ssa.c,
tree-outof-ssa.c, tree-phinodes.c, tree-pretty-print.c,
tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-dse.c,
tree-ssa-live.c, tree-ssa-loop.c, tree-ssa-phiopt.c, tree-ssa-pre.c,
tree-ssa.c, tree-tailcall.c): Use PHI_CHAIN instead of TREE_CHAIN
when traversing a list of PHI_NODEs.
From-SVN: r83273
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* Makefile.in (tree-ssanames.o): Depend on TREE_FLOW_H.
* tree-flow.h (ssa_names, num_ssa_names, ssa_name): Declare.
(highest_ssa_version): Remove.
* tree-outof-ssa.c (new_temp_expr_table): Replace
highest_ssa_version with num_ssa_names.
(dump_replaceable_exprs): Likewise.
(rewrite_vars_out_of_ssa): Likewise.
* tree-ssa-ccp.c (initialize): Likewise
* tree-ssa-copyrename.c (rename_ssa_copies): Likewise.
* tree-ssa-dce.c (tree_dce_init): Likewise.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Likewise.
* tree-ssa-live.c (create_ssa_var_map): Likewise.
(dump_var_map): Likewise.
* tree-ssa.c (verify_ssa): Likewise.
(kill_redundant_phi_nodes): Likewise.
Do not build a local array of SSA_NAMEs. Use the ssa_names table.
* tree-ssanames.c: Include tree-flow.h
(ssa_names): New varray.
(init_ssa_names): Initialize ssa_names.
Reserve the first slot of the ssa_names table.
(make_ssa_name): Push the newly created SSA_NAME into ssa_names.
Assign version numbers using num_ssa_names.
From-SVN: r82950
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* gimple-low.c (struct lower_data): Add the_return_label and
one_return_stmt.
(lower_function_body): Initialize and use them.
(lower_return_expr): New.
(lower_stmt): Call it.
* gimplify.c (gimplify_return_expr): Force the argument to be either
null or a result_decl.
* tree-gimple.c: Update gimple grammer to match.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Deny
coalescing of result_decls.
testsuite/
* gcc.dg/tree-ssa/20030728-1.c: Fixup return value to not match
if temporaries.
From-SVN: r82701
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* tree-gimple.c: Rename from tree-simple.c.
* tree-gimple.h: Rename from tree-simple.h.
* c-gimplify.c: Rename from c-simplify.c
* Makefile.in, c-decl.c, gimple-low.c, gimplify.c,
langhooks.c, tree-alias-ander.c, tree-alias-common.c,
tree-complex.c, tree-dfa.c, tree-flow.h, tree-inline.c,
tree-into-ssa.c, tree-iterator.c, tree-mudflap.c,
tree-nested.c, tree-nomudflap.c, tree-outof-ssa.c, tree-sra.c,
tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-copyrename.c,
tree-ssa-dce.c, tree-ssa-live.c, tree-ssa-pre.c, tree-ssa.c:
Update.
cp/ChangeLog
* cp-gimplify.c: Rename from cp-simplify.c.
* Make-lang.in, optimize.c: Update.
fortran/ChangeLog
* Make-lang.in, f95-lang.c, trans-array.c, trans-decl.c,
trans-expr.c, trans-intrinsic.c, trans-io.c, trans-stmt.c,
trans.c: Rename tree-simple.[ch] to tree-gimple.[ch].
java/ChangeLog
* Make-lang.in, expr.c, java-gimplify.c: Rename
tree-simple.[ch] to tree-gimple.[ch].
From-SVN: r81829
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From-SVN: r81764
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