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author | Andrew Macleod <amacleod@gcc.gnu.org> | 2013-11-13 23:54:17 +0000 |
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committer | Andrew Macleod <amacleod@gcc.gnu.org> | 2013-11-13 23:54:17 +0000 |
commit | 5be5c238419ffa6985605af60bc1f047770b9bd8 (patch) | |
tree | 5212390dab318e009e54c4466b455352647db1a5 /gcc/gimple.c | |
parent | d35e43b970679a09504e452ce6734657545dadc8 (diff) | |
download | gcc-5be5c238419ffa6985605af60bc1f047770b9bd8.zip gcc-5be5c238419ffa6985605af60bc1f047770b9bd8.tar.gz gcc-5be5c238419ffa6985605af60bc1f047770b9bd8.tar.bz2 |
gimple-walk.h: New File.
* gimple-walk.h: New File. Relocate prototypes from gimple.h.
(struct walk_stmt_info): Relocate here from gimple.h.
* gimple-iterator.h: New File. Relocate prototypes from gimple.h.
(struct gimple_stmt_iterator_d): Relocate here from gimple.h.
(gsi_start_1, gsi_none, gsi_start_bb, gsi_last_1, gsi_last_bb,
gsi_end_p, gsi_one_before_end_p, gsi_next, gsi_prev, gsi_stmt,
gsi_after_labels, gsi_next_nondebug, gsi_prev_nondebug,
gsi_start_nondebug_bb, gsi_start_nondebug_after_labels_bb,
gsi_last_nondebug_bb, gsi_bb, gsi_seq): Relocate here from gimple.h.
* gimple.h (struct gimple_stmt_iterator_d): Move to gimple-iterator.h.
(gsi_start_1, gsi_none, gsi_start_bb, gsi_last_1, gsi_last_bb,
gsi_end_p, gsi_one_before_end_p, gsi_next, gsi_prev, gsi_stmt,
gsi_after_labels, gsi_next_nondebug, gsi_prev_nondebug,
gsi_start_nondebug_bb, gsi_start_nondebug_after_labels_bb,
gsi_last_nondebug_bb, gsi_bb, gsi_seq): Move to gimple-iterator.h.
(struct walk_stmt_info): Move to gimple-walk.h.
(gimple_seq_set_location): Move to gimple.c
* gimple-walk.c: New File.
(walk_gimple_seq_mod, walk_gimple_seq, walk_gimple_asm, walk_gimple_op,
walk_gimple_stmt, get_base_loadstore, walk_stmt_load_store_addr_ops,
walk_stmt_load_store_ops): Relocate here from gimple.c.
* gimple-iterator.c: Include gimple-iterator.h.
* gimple.c (walk_gimple_seq_mod, walk_gimple_seq, walk_gimple_asm,
walk_gimple_op, walk_gimple_stmt, get_base_loadstore,
walk_stmt_load_store_addr_ops, walk_stmt_load_store_ops): Move to
gimple-walk.c.
(gimple_seq_set_location): Relocate from gimple.h.
* tree-phinodes.h (set_phi_nodes): Move to tree-phinodes.c.
* tree-phinodes.c (set_phi_nodes): Relocate from tree-phinodes.h.
* gengtype.c (open_base_files): Add gimple-iterator.h to include list.
* Makefile.in (OBJS): Add gimple-walk.o
* asan.c: Update Include list as required for gimple-iterator.h and
gimple-walk.h.
* cfgexpand.c: Likewise.
* cfgloop.c: Likewise.
* cfgloopmanip.c: Likewise.
* cgraph.c: Likewise.
* cgraphbuild.c: Likewise.
* cgraphunit.c: Likewise.
* gimple-fold.c: Likewise.
* gimple-low.c: Likewise.
* gimple-pretty-print.c: Likewise.
* gimple-ssa-isolate-paths.c: Likewise.
* gimple-ssa-strength-reduction.c: Likewise.
* gimple-streamer-in.c: Likewise.
* gimple-streamer-out.c: Likewise.
* gimplify.c: Likewise.
* graphite-blocking.c: Likewise.
* graphite-clast-to-gimple.c: Likewise.
* graphite-dependences.c: Likewise.
* graphite-interchange.c: Likewise.
* graphite-optimize-isl.c: Likewise.
* graphite-poly.c: Likewise.
* graphite-scop-detection.c: Likewise.
* graphite-sese-to-poly.c: Likewise.
* graphite.c: Likewise.
* ipa-inline-analysis.c: Likewise.
* ipa-profile.c: Likewise.
* ipa-prop.c: Likewise.
* ipa-pure-const.c: Likewise.
* ipa-split.c: Likewise.
* lto-streamer-in.c: Likewise.
* lto-streamer-out.c: Likewise.
* omp-low.c: Likewise.
* predict.c: Likewise.
* profile.c: Likewise.
* sese.c: Likewise.
* tracer.c: Likewise.
* trans-mem.c: Likewise.
* tree-call-cdce.c: Likewise.
* tree-cfg.c: Likewise.
* tree-cfgcleanup.c: Likewise.
* tree-complex.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-dfa.c: Likewise.
* tree-eh.c: Likewise.
* tree-emutls.c: Likewise.
* tree-if-conv.c: Likewise.
* tree-inline.c: Likewise.
* tree-into-ssa.c: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-nested.c: Likewise.
* tree-nrv.c: Likewise.
* tree-object-size.c: Likewise.
* tree-outof-ssa.c: Likewise.
* tree-parloops.c: Likewise.
* tree-predcom.c: Likewise.
* tree-profile.c: Likewise.
* tree-scalar-evolution.c: Likewise.
* tree-sra.c: Likewise.
* tree-ssa-ccp.c: Likewise.
* tree-ssa-coalesce.c: Likewise.
* tree-ssa-copy.c: Likewise.
* tree-ssa-copyrename.c: Likewise.
* tree-ssa-dce.c: Likewise.
* tree-ssa-dom.c: Likewise.
* tree-ssa-dse.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-ifcombine.c: Likewise.
* tree-ssa-live.c: Likewise.
* tree-ssa-loop-ch.c: Likewise.
* tree-ssa-loop-im.c: Likewise.
* tree-ssa-loop-ivcanon.c: Likewise.
* tree-ssa-loop-ivopts.c: Likewise.
* tree-ssa-loop-manip.c: Likewise.
* tree-ssa-loop-niter.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-loop.c: Likewise.
* tree-ssa-math-opts.c: Likewise.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-phiprop.c: Likewise.
* tree-ssa-pre.c: Likewise.
* tree-ssa-propagate.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sink.c: Likewise.
* tree-ssa-strlen.c: Likewise.
* tree-ssa-structalias.c: Likewise.
* tree-ssa-tail-merge.c: Likewise.
* tree-ssa-ter.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-threadupdate.c: Likewise.
* tree-ssa-uncprop.c: Likewise.
* tree-ssa-uninit.c: Likewise.
* tree-ssa.c: Likewise.
* tree-stdarg.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-tailcall.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop-manip.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-patterns.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* tree-vectorizer.c: Likewise.
* tree-vrp.c: Likewise.
* tree.c: Likewise.
* tsan.c: Likewise.
* value-prof.c: Likewise.
* vtable-verify.c: Likewise.
* config/aarch64/aarch64-builtins.c: Include gimple-iterator.h.
* config/rs6000/rs6000.c: Include gimple-iterator.h and gimple-walk.h.
* testsuite/g++.dg/plugin/selfassign.c: Include gimple-iterator.h.
* testsuite/gcc.dg/plugin/selfassign.c: Likewise.
From-SVN: r204763
Diffstat (limited to 'gcc/gimple.c')
-rw-r--r-- | gcc/gimple.c | 850 |
1 files changed, 11 insertions, 839 deletions
diff --git a/gcc/gimple.c b/gcc/gimple.c index cba3bce..0e07346 100644 --- a/gcc/gimple.c +++ b/gcc/gimple.c @@ -29,6 +29,8 @@ along with GCC; see the file COPYING3. If not see #include "hard-reg-set.h" #include "basic-block.h" #include "gimple.h" +#include "gimple-iterator.h" +#include "gimple-walk.h" #include "gimplify.h" #include "diagnostic.h" #include "value-prof.h" @@ -1297,600 +1299,6 @@ gimple_seq_copy (gimple_seq src) } -/* Walk all the statements in the sequence *PSEQ calling walk_gimple_stmt - on each one. WI is as in walk_gimple_stmt. - - If walk_gimple_stmt returns non-NULL, the walk is stopped, and the - value is stored in WI->CALLBACK_RESULT. Also, the statement that - produced the value is returned if this statement has not been - removed by a callback (wi->removed_stmt). If the statement has - been removed, NULL is returned. - - Otherwise, all the statements are walked and NULL returned. */ - -gimple -walk_gimple_seq_mod (gimple_seq *pseq, walk_stmt_fn callback_stmt, - walk_tree_fn callback_op, struct walk_stmt_info *wi) -{ - gimple_stmt_iterator gsi; - - for (gsi = gsi_start (*pseq); !gsi_end_p (gsi); ) - { - tree ret = walk_gimple_stmt (&gsi, callback_stmt, callback_op, wi); - if (ret) - { - /* If CALLBACK_STMT or CALLBACK_OP return a value, WI must exist - to hold it. */ - gcc_assert (wi); - wi->callback_result = ret; - - return wi->removed_stmt ? NULL : gsi_stmt (gsi); - } - - if (!wi->removed_stmt) - gsi_next (&gsi); - } - - if (wi) - wi->callback_result = NULL_TREE; - - return NULL; -} - - -/* Like walk_gimple_seq_mod, but ensure that the head of SEQ isn't - changed by the callbacks. */ - -gimple -walk_gimple_seq (gimple_seq seq, walk_stmt_fn callback_stmt, - walk_tree_fn callback_op, struct walk_stmt_info *wi) -{ - gimple_seq seq2 = seq; - gimple ret = walk_gimple_seq_mod (&seq2, callback_stmt, callback_op, wi); - gcc_assert (seq2 == seq); - return ret; -} - - -/* Helper function for walk_gimple_stmt. Walk operands of a GIMPLE_ASM. */ - -static tree -walk_gimple_asm (gimple stmt, walk_tree_fn callback_op, - struct walk_stmt_info *wi) -{ - tree ret, op; - unsigned noutputs; - const char **oconstraints; - unsigned i, n; - const char *constraint; - bool allows_mem, allows_reg, is_inout; - - noutputs = gimple_asm_noutputs (stmt); - oconstraints = (const char **) alloca ((noutputs) * sizeof (const char *)); - - if (wi) - wi->is_lhs = true; - - for (i = 0; i < noutputs; i++) - { - op = gimple_asm_output_op (stmt, i); - constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op))); - oconstraints[i] = constraint; - parse_output_constraint (&constraint, i, 0, 0, &allows_mem, &allows_reg, - &is_inout); - if (wi) - wi->val_only = (allows_reg || !allows_mem); - ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL); - if (ret) - return ret; - } - - n = gimple_asm_ninputs (stmt); - for (i = 0; i < n; i++) - { - op = gimple_asm_input_op (stmt, i); - constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op))); - parse_input_constraint (&constraint, 0, 0, noutputs, 0, - oconstraints, &allows_mem, &allows_reg); - if (wi) - { - wi->val_only = (allows_reg || !allows_mem); - /* Although input "m" is not really a LHS, we need a lvalue. */ - wi->is_lhs = !wi->val_only; - } - ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL); - if (ret) - return ret; - } - - if (wi) - { - wi->is_lhs = false; - wi->val_only = true; - } - - n = gimple_asm_nlabels (stmt); - for (i = 0; i < n; i++) - { - op = gimple_asm_label_op (stmt, i); - ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL); - if (ret) - return ret; - } - - return NULL_TREE; -} - - -/* Helper function of WALK_GIMPLE_STMT. Walk every tree operand in - STMT. CALLBACK_OP and WI are as in WALK_GIMPLE_STMT. - - CALLBACK_OP is called on each operand of STMT via walk_tree. - Additional parameters to walk_tree must be stored in WI. For each operand - OP, walk_tree is called as: - - walk_tree (&OP, CALLBACK_OP, WI, WI->PSET) - - If CALLBACK_OP returns non-NULL for an operand, the remaining - operands are not scanned. - - The return value is that returned by the last call to walk_tree, or - NULL_TREE if no CALLBACK_OP is specified. */ - -tree -walk_gimple_op (gimple stmt, walk_tree_fn callback_op, - struct walk_stmt_info *wi) -{ - struct pointer_set_t *pset = (wi) ? wi->pset : NULL; - unsigned i; - tree ret = NULL_TREE; - - switch (gimple_code (stmt)) - { - case GIMPLE_ASSIGN: - /* Walk the RHS operands. If the LHS is of a non-renamable type or - is a register variable, we may use a COMPONENT_REF on the RHS. */ - if (wi) - { - tree lhs = gimple_assign_lhs (stmt); - wi->val_only - = (is_gimple_reg_type (TREE_TYPE (lhs)) && !is_gimple_reg (lhs)) - || gimple_assign_rhs_class (stmt) != GIMPLE_SINGLE_RHS; - } - - for (i = 1; i < gimple_num_ops (stmt); i++) - { - ret = walk_tree (gimple_op_ptr (stmt, i), callback_op, wi, - pset); - if (ret) - return ret; - } - - /* Walk the LHS. If the RHS is appropriate for a memory, we - may use a COMPONENT_REF on the LHS. */ - if (wi) - { - /* If the RHS is of a non-renamable type or is a register variable, - we may use a COMPONENT_REF on the LHS. */ - tree rhs1 = gimple_assign_rhs1 (stmt); - wi->val_only - = (is_gimple_reg_type (TREE_TYPE (rhs1)) && !is_gimple_reg (rhs1)) - || gimple_assign_rhs_class (stmt) != GIMPLE_SINGLE_RHS; - wi->is_lhs = true; - } - - ret = walk_tree (gimple_op_ptr (stmt, 0), callback_op, wi, pset); - if (ret) - return ret; - - if (wi) - { - wi->val_only = true; - wi->is_lhs = false; - } - break; - - case GIMPLE_CALL: - if (wi) - { - wi->is_lhs = false; - wi->val_only = true; - } - - ret = walk_tree (gimple_call_chain_ptr (stmt), callback_op, wi, pset); - if (ret) - return ret; - - ret = walk_tree (gimple_call_fn_ptr (stmt), callback_op, wi, pset); - if (ret) - return ret; - - for (i = 0; i < gimple_call_num_args (stmt); i++) - { - if (wi) - wi->val_only - = is_gimple_reg_type (TREE_TYPE (gimple_call_arg (stmt, i))); - ret = walk_tree (gimple_call_arg_ptr (stmt, i), callback_op, wi, - pset); - if (ret) - return ret; - } - - if (gimple_call_lhs (stmt)) - { - if (wi) - { - wi->is_lhs = true; - wi->val_only - = is_gimple_reg_type (TREE_TYPE (gimple_call_lhs (stmt))); - } - - ret = walk_tree (gimple_call_lhs_ptr (stmt), callback_op, wi, pset); - if (ret) - return ret; - } - - if (wi) - { - wi->is_lhs = false; - wi->val_only = true; - } - break; - - case GIMPLE_CATCH: - ret = walk_tree (gimple_catch_types_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_EH_FILTER: - ret = walk_tree (gimple_eh_filter_types_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_ASM: - ret = walk_gimple_asm (stmt, callback_op, wi); - if (ret) - return ret; - break; - - case GIMPLE_OMP_CONTINUE: - ret = walk_tree (gimple_omp_continue_control_def_ptr (stmt), - callback_op, wi, pset); - if (ret) - return ret; - - ret = walk_tree (gimple_omp_continue_control_use_ptr (stmt), - callback_op, wi, pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_CRITICAL: - ret = walk_tree (gimple_omp_critical_name_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_FOR: - ret = walk_tree (gimple_omp_for_clauses_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - for (i = 0; i < gimple_omp_for_collapse (stmt); i++) - { - ret = walk_tree (gimple_omp_for_index_ptr (stmt, i), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_for_initial_ptr (stmt, i), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_for_final_ptr (stmt, i), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_for_incr_ptr (stmt, i), callback_op, - wi, pset); - } - if (ret) - return ret; - break; - - case GIMPLE_OMP_PARALLEL: - ret = walk_tree (gimple_omp_parallel_clauses_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_parallel_child_fn_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_parallel_data_arg_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_TASK: - ret = walk_tree (gimple_omp_task_clauses_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_task_child_fn_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_task_data_arg_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_task_copy_fn_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_task_arg_size_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - ret = walk_tree (gimple_omp_task_arg_align_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_SECTIONS: - ret = walk_tree (gimple_omp_sections_clauses_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - - ret = walk_tree (gimple_omp_sections_control_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - - break; - - case GIMPLE_OMP_SINGLE: - ret = walk_tree (gimple_omp_single_clauses_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_TARGET: - ret = walk_tree (gimple_omp_target_clauses_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_TEAMS: - ret = walk_tree (gimple_omp_teams_clauses_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_ATOMIC_LOAD: - ret = walk_tree (gimple_omp_atomic_load_lhs_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - - ret = walk_tree (gimple_omp_atomic_load_rhs_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_ATOMIC_STORE: - ret = walk_tree (gimple_omp_atomic_store_val_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - break; - - case GIMPLE_TRANSACTION: - ret = walk_tree (gimple_transaction_label_ptr (stmt), callback_op, - wi, pset); - if (ret) - return ret; - break; - - case GIMPLE_OMP_RETURN: - ret = walk_tree (gimple_omp_return_lhs_ptr (stmt), callback_op, wi, - pset); - if (ret) - return ret; - break; - - /* Tuples that do not have operands. */ - case GIMPLE_NOP: - case GIMPLE_RESX: - case GIMPLE_PREDICT: - break; - - default: - { - enum gimple_statement_structure_enum gss; - gss = gimple_statement_structure (stmt); - if (gss == GSS_WITH_OPS || gss == GSS_WITH_MEM_OPS) - for (i = 0; i < gimple_num_ops (stmt); i++) - { - ret = walk_tree (gimple_op_ptr (stmt, i), callback_op, wi, pset); - if (ret) - return ret; - } - } - break; - } - - return NULL_TREE; -} - - -/* Walk the current statement in GSI (optionally using traversal state - stored in WI). If WI is NULL, no state is kept during traversal. - The callback CALLBACK_STMT is called. If CALLBACK_STMT indicates - that it has handled all the operands of the statement, its return - value is returned. Otherwise, the return value from CALLBACK_STMT - is discarded and its operands are scanned. - - If CALLBACK_STMT is NULL or it didn't handle the operands, - CALLBACK_OP is called on each operand of the statement via - walk_gimple_op. If walk_gimple_op returns non-NULL for any - operand, the remaining operands are not scanned. In this case, the - return value from CALLBACK_OP is returned. - - In any other case, NULL_TREE is returned. */ - -tree -walk_gimple_stmt (gimple_stmt_iterator *gsi, walk_stmt_fn callback_stmt, - walk_tree_fn callback_op, struct walk_stmt_info *wi) -{ - gimple ret; - tree tree_ret; - gimple stmt = gsi_stmt (*gsi); - - if (wi) - { - wi->gsi = *gsi; - wi->removed_stmt = false; - - if (wi->want_locations && gimple_has_location (stmt)) - input_location = gimple_location (stmt); - } - - ret = NULL; - - /* Invoke the statement callback. Return if the callback handled - all of STMT operands by itself. */ - if (callback_stmt) - { - bool handled_ops = false; - tree_ret = callback_stmt (gsi, &handled_ops, wi); - if (handled_ops) - return tree_ret; - - /* If CALLBACK_STMT did not handle operands, it should not have - a value to return. */ - gcc_assert (tree_ret == NULL); - - if (wi && wi->removed_stmt) - return NULL; - - /* Re-read stmt in case the callback changed it. */ - stmt = gsi_stmt (*gsi); - } - - /* If CALLBACK_OP is defined, invoke it on every operand of STMT. */ - if (callback_op) - { - tree_ret = walk_gimple_op (stmt, callback_op, wi); - if (tree_ret) - return tree_ret; - } - - /* If STMT can have statements inside (e.g. GIMPLE_BIND), walk them. */ - switch (gimple_code (stmt)) - { - case GIMPLE_BIND: - ret = walk_gimple_seq_mod (gimple_bind_body_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_CATCH: - ret = walk_gimple_seq_mod (gimple_catch_handler_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_EH_FILTER: - ret = walk_gimple_seq_mod (gimple_eh_filter_failure_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_EH_ELSE: - ret = walk_gimple_seq_mod (gimple_eh_else_n_body_ptr (stmt), - callback_stmt, callback_op, wi); - if (ret) - return wi->callback_result; - ret = walk_gimple_seq_mod (gimple_eh_else_e_body_ptr (stmt), - callback_stmt, callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_TRY: - ret = walk_gimple_seq_mod (gimple_try_eval_ptr (stmt), callback_stmt, callback_op, - wi); - if (ret) - return wi->callback_result; - - ret = walk_gimple_seq_mod (gimple_try_cleanup_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_OMP_FOR: - ret = walk_gimple_seq_mod (gimple_omp_for_pre_body_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - - /* FALL THROUGH. */ - case GIMPLE_OMP_CRITICAL: - case GIMPLE_OMP_MASTER: - case GIMPLE_OMP_TASKGROUP: - case GIMPLE_OMP_ORDERED: - case GIMPLE_OMP_SECTION: - case GIMPLE_OMP_PARALLEL: - case GIMPLE_OMP_TASK: - case GIMPLE_OMP_SECTIONS: - case GIMPLE_OMP_SINGLE: - case GIMPLE_OMP_TARGET: - case GIMPLE_OMP_TEAMS: - ret = walk_gimple_seq_mod (gimple_omp_body_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_WITH_CLEANUP_EXPR: - ret = walk_gimple_seq_mod (gimple_wce_cleanup_ptr (stmt), callback_stmt, - callback_op, wi); - if (ret) - return wi->callback_result; - break; - - case GIMPLE_TRANSACTION: - ret = walk_gimple_seq_mod (gimple_transaction_body_ptr (stmt), - callback_stmt, callback_op, wi); - if (ret) - return wi->callback_result; - break; - - default: - gcc_assert (!gimple_has_substatements (stmt)); - break; - } - - return NULL; -} - /* Return true if calls C1 and C2 are known to go to the same function. */ @@ -2996,251 +2404,6 @@ gimple_get_alias_set (tree t) } -/* From a tree operand OP return the base of a load or store operation - or NULL_TREE if OP is not a load or a store. */ - -static tree -get_base_loadstore (tree op) -{ - while (handled_component_p (op)) - op = TREE_OPERAND (op, 0); - if (DECL_P (op) - || INDIRECT_REF_P (op) - || TREE_CODE (op) == MEM_REF - || TREE_CODE (op) == TARGET_MEM_REF) - return op; - return NULL_TREE; -} - -/* For the statement STMT call the callbacks VISIT_LOAD, VISIT_STORE and - VISIT_ADDR if non-NULL on loads, store and address-taken operands - passing the STMT, the base of the operand and DATA to it. The base - will be either a decl, an indirect reference (including TARGET_MEM_REF) - or the argument of an address expression. - Returns the results of these callbacks or'ed. */ - -bool -walk_stmt_load_store_addr_ops (gimple stmt, void *data, - bool (*visit_load)(gimple, tree, void *), - bool (*visit_store)(gimple, tree, void *), - bool (*visit_addr)(gimple, tree, void *)) -{ - bool ret = false; - unsigned i; - if (gimple_assign_single_p (stmt)) - { - tree lhs, rhs; - if (visit_store) - { - lhs = get_base_loadstore (gimple_assign_lhs (stmt)); - if (lhs) - ret |= visit_store (stmt, lhs, data); - } - rhs = gimple_assign_rhs1 (stmt); - while (handled_component_p (rhs)) - rhs = TREE_OPERAND (rhs, 0); - if (visit_addr) - { - if (TREE_CODE (rhs) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (rhs, 0), data); - else if (TREE_CODE (rhs) == TARGET_MEM_REF - && TREE_CODE (TMR_BASE (rhs)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (TMR_BASE (rhs), 0), data); - else if (TREE_CODE (rhs) == OBJ_TYPE_REF - && TREE_CODE (OBJ_TYPE_REF_OBJECT (rhs)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (OBJ_TYPE_REF_OBJECT (rhs), - 0), data); - else if (TREE_CODE (rhs) == CONSTRUCTOR) - { - unsigned int ix; - tree val; - - FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (rhs), ix, val) - if (TREE_CODE (val) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (val, 0), data); - else if (TREE_CODE (val) == OBJ_TYPE_REF - && TREE_CODE (OBJ_TYPE_REF_OBJECT (val)) == ADDR_EXPR) - ret |= visit_addr (stmt, - TREE_OPERAND (OBJ_TYPE_REF_OBJECT (val), - 0), data); - } - lhs = gimple_assign_lhs (stmt); - if (TREE_CODE (lhs) == TARGET_MEM_REF - && TREE_CODE (TMR_BASE (lhs)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (TMR_BASE (lhs), 0), data); - } - if (visit_load) - { - rhs = get_base_loadstore (rhs); - if (rhs) - ret |= visit_load (stmt, rhs, data); - } - } - else if (visit_addr - && (is_gimple_assign (stmt) - || gimple_code (stmt) == GIMPLE_COND)) - { - for (i = 0; i < gimple_num_ops (stmt); ++i) - { - tree op = gimple_op (stmt, i); - if (op == NULL_TREE) - ; - else if (TREE_CODE (op) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (op, 0), data); - /* COND_EXPR and VCOND_EXPR rhs1 argument is a comparison - tree with two operands. */ - else if (i == 1 && COMPARISON_CLASS_P (op)) - { - if (TREE_CODE (TREE_OPERAND (op, 0)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (TREE_OPERAND (op, 0), - 0), data); - if (TREE_CODE (TREE_OPERAND (op, 1)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (TREE_OPERAND (op, 1), - 0), data); - } - } - } - else if (is_gimple_call (stmt)) - { - if (visit_store) - { - tree lhs = gimple_call_lhs (stmt); - if (lhs) - { - lhs = get_base_loadstore (lhs); - if (lhs) - ret |= visit_store (stmt, lhs, data); - } - } - if (visit_load || visit_addr) - for (i = 0; i < gimple_call_num_args (stmt); ++i) - { - tree rhs = gimple_call_arg (stmt, i); - if (visit_addr - && TREE_CODE (rhs) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (rhs, 0), data); - else if (visit_load) - { - rhs = get_base_loadstore (rhs); - if (rhs) - ret |= visit_load (stmt, rhs, data); - } - } - if (visit_addr - && gimple_call_chain (stmt) - && TREE_CODE (gimple_call_chain (stmt)) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (gimple_call_chain (stmt), 0), - data); - if (visit_addr - && gimple_call_return_slot_opt_p (stmt) - && gimple_call_lhs (stmt) != NULL_TREE - && TREE_ADDRESSABLE (TREE_TYPE (gimple_call_lhs (stmt)))) - ret |= visit_addr (stmt, gimple_call_lhs (stmt), data); - } - else if (gimple_code (stmt) == GIMPLE_ASM) - { - unsigned noutputs; - const char *constraint; - const char **oconstraints; - bool allows_mem, allows_reg, is_inout; - noutputs = gimple_asm_noutputs (stmt); - oconstraints = XALLOCAVEC (const char *, noutputs); - if (visit_store || visit_addr) - for (i = 0; i < gimple_asm_noutputs (stmt); ++i) - { - tree link = gimple_asm_output_op (stmt, i); - tree op = get_base_loadstore (TREE_VALUE (link)); - if (op && visit_store) - ret |= visit_store (stmt, op, data); - if (visit_addr) - { - constraint = TREE_STRING_POINTER - (TREE_VALUE (TREE_PURPOSE (link))); - oconstraints[i] = constraint; - parse_output_constraint (&constraint, i, 0, 0, &allows_mem, - &allows_reg, &is_inout); - if (op && !allows_reg && allows_mem) - ret |= visit_addr (stmt, op, data); - } - } - if (visit_load || visit_addr) - for (i = 0; i < gimple_asm_ninputs (stmt); ++i) - { - tree link = gimple_asm_input_op (stmt, i); - tree op = TREE_VALUE (link); - if (visit_addr - && TREE_CODE (op) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (op, 0), data); - else if (visit_load || visit_addr) - { - op = get_base_loadstore (op); - if (op) - { - if (visit_load) - ret |= visit_load (stmt, op, data); - if (visit_addr) - { - constraint = TREE_STRING_POINTER - (TREE_VALUE (TREE_PURPOSE (link))); - parse_input_constraint (&constraint, 0, 0, noutputs, - 0, oconstraints, - &allows_mem, &allows_reg); - if (!allows_reg && allows_mem) - ret |= visit_addr (stmt, op, data); - } - } - } - } - } - else if (gimple_code (stmt) == GIMPLE_RETURN) - { - tree op = gimple_return_retval (stmt); - if (op) - { - if (visit_addr - && TREE_CODE (op) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (op, 0), data); - else if (visit_load) - { - op = get_base_loadstore (op); - if (op) - ret |= visit_load (stmt, op, data); - } - } - } - else if (visit_addr - && gimple_code (stmt) == GIMPLE_PHI) - { - for (i = 0; i < gimple_phi_num_args (stmt); ++i) - { - tree op = gimple_phi_arg_def (stmt, i); - if (TREE_CODE (op) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (op, 0), data); - } - } - else if (visit_addr - && gimple_code (stmt) == GIMPLE_GOTO) - { - tree op = gimple_goto_dest (stmt); - if (TREE_CODE (op) == ADDR_EXPR) - ret |= visit_addr (stmt, TREE_OPERAND (op, 0), data); - } - - return ret; -} - -/* Like walk_stmt_load_store_addr_ops but with NULL visit_addr. IPA-CP - should make a faster clone for this case. */ - -bool -walk_stmt_load_store_ops (gimple stmt, void *data, - bool (*visit_load)(gimple, tree, void *), - bool (*visit_store)(gimple, tree, void *)) -{ - return walk_stmt_load_store_addr_ops (stmt, data, - visit_load, visit_store, NULL); -} - /* Helper for gimple_ior_addresses_taken_1. */ static bool @@ -3688,3 +2851,12 @@ preprocess_case_label_vec_for_gimple (vec<tree> labels, if (default_casep) *default_casep = default_case; } + +/* Set the location of all statements in SEQ to LOC. */ + +void +gimple_seq_set_location (gimple_seq seq, location_t loc) +{ + for (gimple_stmt_iterator i = gsi_start (seq); !gsi_end_p (i); gsi_next (&i)) + gimple_set_location (gsi_stmt (i), loc); +} |