Mercurial > hg > CbC > CbC_gcc
diff gcc/tree-complex.c @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | f6334be47118 |
children | 84e7813d76e9 |
line wrap: on
line diff
--- a/gcc/tree-complex.c Sun Aug 21 07:07:55 2011 +0900 +++ b/gcc/tree-complex.c Fri Oct 27 22:46:09 2017 +0900 @@ -1,6 +1,5 @@ /* Lower complex number operations to scalar operations. - Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 2004-2017 Free Software Foundation, Inc. This file is part of GCC. @@ -21,14 +20,26 @@ #include "config.h" #include "system.h" #include "coretypes.h" -#include "tm.h" +#include "backend.h" +#include "rtl.h" #include "tree.h" -#include "flags.h" -#include "tree-flow.h" #include "gimple.h" -#include "tree-iterator.h" +#include "cfghooks.h" #include "tree-pass.h" +#include "ssa.h" +#include "fold-const.h" +#include "stor-layout.h" +#include "tree-eh.h" +#include "gimplify.h" +#include "gimple-iterator.h" +#include "gimplify-me.h" +#include "tree-cfg.h" +#include "tree-dfa.h" +#include "tree-ssa.h" #include "tree-ssa-propagate.h" +#include "tree-hasher.h" +#include "cfgloop.h" +#include "cfganal.h" /* For each complex ssa name, a lattice value. We're interested in finding @@ -49,27 +60,29 @@ #define PAIR(a, b) ((a) << 2 | (b)) -DEF_VEC_I(complex_lattice_t); -DEF_VEC_ALLOC_I(complex_lattice_t, heap); -static VEC(complex_lattice_t, heap) *complex_lattice_values; +static vec<complex_lattice_t> complex_lattice_values; /* For each complex variable, a pair of variables for the components exists in the hashtable. */ -static htab_t complex_variable_components; +static int_tree_htab_type *complex_variable_components; /* For each complex SSA_NAME, a pair of ssa names for the components. */ -static VEC(tree, heap) *complex_ssa_name_components; +static vec<tree> complex_ssa_name_components; + +/* Vector of PHI triplets (original complex PHI and corresponding real and + imag PHIs if real and/or imag PHIs contain temporarily + non-SSA_NAME/non-invariant args that need to be replaced by SSA_NAMEs. */ +static vec<gphi *> phis_to_revisit; /* Lookup UID in the complex_variable_components hashtable and return the associated tree. */ static tree cvc_lookup (unsigned int uid) { - struct int_tree_map *h, in; + struct int_tree_map in; in.uid = uid; - h = (struct int_tree_map *) htab_find_with_hash (complex_variable_components, &in, uid); - return h ? h->to : NULL; + return complex_variable_components->find_with_hash (in, uid).to; } /* Insert the pair UID, TO into the complex_variable_components hashtable. */ @@ -77,15 +90,13 @@ static void cvc_insert (unsigned int uid, tree to) { - struct int_tree_map *h; - void **loc; + int_tree_map h; + int_tree_map *loc; - h = XNEW (struct int_tree_map); - h->uid = uid; - h->to = to; - loc = htab_find_slot_with_hash (complex_variable_components, h, - uid, INSERT); - *(struct int_tree_map **) loc = h; + h.uid = uid; + loc = complex_variable_components->find_slot_with_hash (h, uid, INSERT); + loc->uid = uid; + loc->to = to; } /* Return true if T is not a zero constant. In the case of real values, @@ -100,7 +111,7 @@ cannot be treated the same as operations with a real or imaginary operand if we care about the signs of zeros in the result. */ if (TREE_CODE (t) == REAL_CST && !flag_signed_zeros) - zerop = REAL_VALUES_IDENTICAL (TREE_REAL_CST (t), dconst0); + zerop = real_identical (&TREE_REAL_CST (t), &dconst0); else if (TREE_CODE (t) == FIXED_CST) zerop = fixed_zerop (t); else if (TREE_CODE (t) == INTEGER_CST) @@ -143,8 +154,7 @@ switch (TREE_CODE (t)) { case SSA_NAME: - return VEC_index (complex_lattice_t, complex_lattice_values, - SSA_NAME_VERSION (t)); + return complex_lattice_values[SSA_NAME_VERSION (t)]; case COMPLEX_CST: real = TREE_REALPART (t); @@ -176,10 +186,8 @@ for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = DECL_CHAIN (parm)) if (is_complex_reg (parm) - && var_ann (parm) != NULL - && (ssa_name = gimple_default_def (cfun, parm)) != NULL_TREE) - VEC_replace (complex_lattice_t, complex_lattice_values, - SSA_NAME_VERSION (ssa_name), VARYING); + && (ssa_name = ssa_default_def (cfun, parm)) != NULL_TREE) + complex_lattice_values[SSA_NAME_VERSION (ssa_name)] = VARYING; } /* Initialize simulation state for each statement. Return false if we @@ -190,22 +198,22 @@ init_dont_simulate_again (void) { basic_block bb; - gimple_stmt_iterator gsi; - gimple phi; bool saw_a_complex_op = false; - FOR_EACH_BB (bb) + FOR_EACH_BB_FN (bb, cfun) { - for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi)) + for (gphi_iterator gsi = gsi_start_phis (bb); !gsi_end_p (gsi); + gsi_next (&gsi)) { - phi = gsi_stmt (gsi); + gphi *phi = gsi.phi (); prop_set_simulate_again (phi, is_complex_reg (gimple_phi_result (phi))); } - for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi)) + for (gimple_stmt_iterator gsi = gsi_start_bb (bb); !gsi_end_p (gsi); + gsi_next (&gsi)) { - gimple stmt; + gimple *stmt; tree op0, op1; bool sim_again_p; @@ -293,7 +301,7 @@ /* Evaluate statement STMT against the complex lattice defined above. */ static enum ssa_prop_result -complex_visit_stmt (gimple stmt, edge *taken_edge_p ATTRIBUTE_UNUSED, +complex_visit_stmt (gimple *stmt, edge *taken_edge_p ATTRIBUTE_UNUSED, tree *result_p) { complex_lattice_t new_l, old_l, op1_l, op2_l; @@ -312,7 +320,7 @@ *result_p = lhs; ver = SSA_NAME_VERSION (lhs); - old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver); + old_l = complex_lattice_values[ver]; switch (gimple_expr_code (stmt)) { @@ -381,14 +389,14 @@ if (new_l == old_l) return SSA_PROP_NOT_INTERESTING; - VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l); + complex_lattice_values[ver] = new_l; return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING; } /* Evaluate a PHI node against the complex lattice defined above. */ static enum ssa_prop_result -complex_visit_phi (gimple phi) +complex_visit_phi (gphi *phi) { complex_lattice_t new_l, old_l; unsigned int ver; @@ -407,12 +415,12 @@ new_l |= find_lattice_value (gimple_phi_arg_def (phi, i)); ver = SSA_NAME_VERSION (lhs); - old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver); + old_l = complex_lattice_values[ver]; if (new_l == old_l) return SSA_PROP_NOT_INTERESTING; - VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l); + complex_lattice_values[ver] = new_l; return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING; } @@ -423,7 +431,6 @@ const char *suffix, enum tree_code code) { tree r = create_tmp_var (type, prefix); - add_referenced_var (r); DECL_SOURCE_LOCATION (r) = DECL_SOURCE_LOCATION (orig); DECL_ARTIFICIAL (r) = 1; @@ -431,11 +438,11 @@ if (DECL_NAME (orig) && !DECL_IGNORED_P (orig)) { const char *name = IDENTIFIER_POINTER (DECL_NAME (orig)); - - DECL_NAME (r) = get_identifier (ACONCAT ((name, suffix, NULL))); + name = ACONCAT ((name, suffix, NULL)); + DECL_NAME (r) = get_identifier (name); SET_DECL_DEBUG_EXPR (r, build1 (code, type, orig)); - DECL_DEBUG_EXPR_IS_FROM (r) = 1; + DECL_HAS_DEBUG_EXPR_P (r) = 1; DECL_IGNORED_P (r) = 0; TREE_NO_WARNING (r) = TREE_NO_WARNING (orig); } @@ -487,24 +494,27 @@ } ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p; - ret = VEC_index (tree, complex_ssa_name_components, ssa_name_index); + ret = complex_ssa_name_components[ssa_name_index]; if (ret == NULL) { - ret = get_component_var (SSA_NAME_VAR (ssa_name), imag_p); - ret = make_ssa_name (ret, NULL); + if (SSA_NAME_VAR (ssa_name)) + ret = get_component_var (SSA_NAME_VAR (ssa_name), imag_p); + else + ret = TREE_TYPE (TREE_TYPE (ssa_name)); + ret = make_ssa_name (ret); /* Copy some properties from the original. In particular, whether it is used in an abnormal phi, and whether it's uninitialized. */ SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ret) = SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name); - if (TREE_CODE (SSA_NAME_VAR (ssa_name)) == VAR_DECL - && gimple_nop_p (SSA_NAME_DEF_STMT (ssa_name))) + if (SSA_NAME_IS_DEFAULT_DEF (ssa_name) + && TREE_CODE (SSA_NAME_VAR (ssa_name)) == VAR_DECL) { SSA_NAME_DEF_STMT (ret) = SSA_NAME_DEF_STMT (ssa_name); - set_default_def (SSA_NAME_VAR (ret), ret); + set_ssa_default_def (cfun, SSA_NAME_VAR (ret), ret); } - VEC_replace (tree, complex_ssa_name_components, ssa_name_index, ret); + complex_ssa_name_components[ssa_name_index] = ret; } return ret; @@ -519,7 +529,7 @@ complex_lattice_t lattice = find_lattice_value (ssa_name); size_t ssa_name_index; tree comp; - gimple last; + gimple *last; gimple_seq list; /* We know the value must be zero, else there's a bug in our lattice @@ -533,7 +543,7 @@ This is fine. Now we should create an initialization for the value we created earlier. */ ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p; - comp = VEC_index (tree, complex_ssa_name_components, ssa_name_index); + comp = complex_ssa_name_components[ssa_name_index]; if (comp) ; @@ -543,7 +553,7 @@ else if (is_gimple_min_invariant (value) && !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name)) { - VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value); + complex_ssa_name_components[ssa_name_index] = value; return NULL; } else if (TREE_CODE (value) == SSA_NAME @@ -551,14 +561,15 @@ { /* Replace an anonymous base value with the variable from cvc_lookup. This should result in better debug info. */ - if (DECL_IGNORED_P (SSA_NAME_VAR (value)) + if (SSA_NAME_VAR (ssa_name) + && (!SSA_NAME_VAR (value) || DECL_IGNORED_P (SSA_NAME_VAR (value))) && !DECL_IGNORED_P (SSA_NAME_VAR (ssa_name))) { comp = get_component_var (SSA_NAME_VAR (ssa_name), imag_p); replace_ssa_name_symbol (value, comp); } - VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value); + complex_ssa_name_components[ssa_name_index] = value; return NULL; } @@ -583,7 +594,7 @@ static tree extract_component (gimple_stmt_iterator *gsi, tree t, bool imagpart_p, - bool gimple_p) + bool gimple_p, bool phiarg_p = false) { switch (TREE_CODE (t)) { @@ -593,6 +604,21 @@ case COMPLEX_EXPR: gcc_unreachable (); + case BIT_FIELD_REF: + { + tree inner_type = TREE_TYPE (TREE_TYPE (t)); + t = unshare_expr (t); + TREE_TYPE (t) = inner_type; + TREE_OPERAND (t, 1) = TYPE_SIZE (inner_type); + if (imagpart_p) + TREE_OPERAND (t, 2) = size_binop (PLUS_EXPR, TREE_OPERAND (t, 2), + TYPE_SIZE (inner_type)); + if (gimple_p) + t = force_gimple_operand_gsi (gsi, t, true, NULL, true, + GSI_SAME_STMT); + return t; + } + case VAR_DECL: case RESULT_DECL: case PARM_DECL: @@ -614,7 +640,10 @@ } case SSA_NAME: - return get_component_ssa_name (t, imagpart_p); + t = get_component_ssa_name (t, imagpart_p); + if (TREE_CODE (t) == SSA_NAME && SSA_NAME_DEF_STMT (t) == NULL) + gcc_assert (phiarg_p); + return t; default: gcc_unreachable (); @@ -624,7 +653,7 @@ /* Update the complex components of the ssa name on the lhs of STMT. */ static void -update_complex_components (gimple_stmt_iterator *gsi, gimple stmt, tree r, +update_complex_components (gimple_stmt_iterator *gsi, gimple *stmt, tree r, tree i) { tree lhs; @@ -661,17 +690,16 @@ static void update_complex_assignment (gimple_stmt_iterator *gsi, tree r, tree i) { - gimple_stmt_iterator orig_si = *gsi; - gimple stmt; + gimple *stmt; + + gimple_assign_set_rhs_with_ops (gsi, COMPLEX_EXPR, r, i); + stmt = gsi_stmt (*gsi); + update_stmt (stmt); + if (maybe_clean_eh_stmt (stmt)) + gimple_purge_dead_eh_edges (gimple_bb (stmt)); if (gimple_in_ssa_p (cfun)) update_complex_components (gsi, gsi_stmt (*gsi), r, i); - - gimple_assign_set_rhs_with_ops (&orig_si, COMPLEX_EXPR, r, i); - stmt = gsi_stmt (orig_si); - update_stmt (stmt); - if (maybe_clean_eh_stmt (stmt)) - gimple_purge_dead_eh_edges (gimple_bb (stmt)); } @@ -681,7 +709,7 @@ static void update_parameter_components (void) { - edge entry_edge = single_succ_edge (ENTRY_BLOCK_PTR); + edge entry_edge = single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)); tree parm; for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = DECL_CHAIN (parm)) @@ -693,7 +721,7 @@ continue; type = TREE_TYPE (type); - ssa_name = gimple_default_def (cfun, parm); + ssa_name = ssa_default_def (cfun, parm); if (!ssa_name) continue; @@ -709,45 +737,56 @@ static void update_phi_components (basic_block bb) { - gimple_stmt_iterator gsi; + gphi_iterator gsi; for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi)) { - gimple phi = gsi_stmt (gsi); + gphi *phi = gsi.phi (); if (is_complex_reg (gimple_phi_result (phi))) { - tree lr, li; - gimple pr = NULL, pi = NULL; - unsigned int i, n; + gphi *p[2] = { NULL, NULL }; + unsigned int i, j, n; + bool revisit_phi = false; - lr = get_component_ssa_name (gimple_phi_result (phi), false); - if (TREE_CODE (lr) == SSA_NAME) + for (j = 0; j < 2; j++) { - pr = create_phi_node (lr, bb); - SSA_NAME_DEF_STMT (lr) = pr; - } - - li = get_component_ssa_name (gimple_phi_result (phi), true); - if (TREE_CODE (li) == SSA_NAME) - { - pi = create_phi_node (li, bb); - SSA_NAME_DEF_STMT (li) = pi; + tree l = get_component_ssa_name (gimple_phi_result (phi), j > 0); + if (TREE_CODE (l) == SSA_NAME) + p[j] = create_phi_node (l, bb); } for (i = 0, n = gimple_phi_num_args (phi); i < n; ++i) { tree comp, arg = gimple_phi_arg_def (phi, i); - if (pr) - { - comp = extract_component (NULL, arg, false, false); - SET_PHI_ARG_DEF (pr, i, comp); - } - if (pi) - { - comp = extract_component (NULL, arg, true, false); - SET_PHI_ARG_DEF (pi, i, comp); - } + for (j = 0; j < 2; j++) + if (p[j]) + { + comp = extract_component (NULL, arg, j > 0, false, true); + if (TREE_CODE (comp) == SSA_NAME + && SSA_NAME_DEF_STMT (comp) == NULL) + { + /* For the benefit of any gimple simplification during + this pass that might walk SSA_NAME def stmts, + don't add SSA_NAMEs without definitions into the + PHI arguments, but put a decl in there instead + temporarily, and revisit this PHI later on. */ + if (SSA_NAME_VAR (comp)) + comp = SSA_NAME_VAR (comp); + else + comp = create_tmp_reg (TREE_TYPE (comp), + get_name (comp)); + revisit_phi = true; + } + SET_PHI_ARG_DEF (p[j], i, comp); + } + } + + if (revisit_phi) + { + phis_to_revisit.safe_push (phi); + phis_to_revisit.safe_push (p[0]); + phis_to_revisit.safe_push (p[1]); } } } @@ -760,7 +799,7 @@ { tree inner_type = TREE_TYPE (type); tree r, i, lhs, rhs; - gimple stmt = gsi_stmt (*gsi); + gimple *stmt = gsi_stmt (*gsi); if (is_gimple_assign (stmt)) { @@ -821,13 +860,16 @@ else if (rhs && TREE_CODE (rhs) == SSA_NAME && !TREE_SIDE_EFFECTS (lhs)) { tree x; - gimple t; + gimple *t; + location_t loc; + loc = gimple_location (stmt); r = extract_component (gsi, rhs, 0, false); i = extract_component (gsi, rhs, 1, false); x = build1 (REALPART_EXPR, inner_type, unshare_expr (lhs)); t = gimple_build_assign (x, r); + gimple_set_location (t, loc); gsi_insert_before (gsi, t, GSI_SAME_STMT); if (stmt == gsi_stmt (*gsi)) @@ -840,11 +882,12 @@ { x = build1 (IMAGPART_EXPR, inner_type, unshare_expr (lhs)); t = gimple_build_assign (x, i); + gimple_set_location (t, loc); gsi_insert_before (gsi, t, GSI_SAME_STMT); stmt = gsi_stmt (*gsi); gcc_assert (gimple_code (stmt) == GIMPLE_RETURN); - gimple_return_set_retval (stmt, lhs); + gimple_return_set_retval (as_a <greturn *> (stmt), lhs); } update_stmt (stmt); @@ -936,10 +979,11 @@ expand_complex_libcall (gimple_stmt_iterator *gsi, tree ar, tree ai, tree br, tree bi, enum tree_code code) { - enum machine_mode mode; + machine_mode mode; enum built_in_function bcode; tree fn, type, lhs; - gimple old_stmt, stmt; + gimple *old_stmt; + gcall *stmt; old_stmt = gsi_stmt (*gsi); lhs = gimple_assign_lhs (old_stmt); @@ -956,7 +1000,7 @@ (BUILT_IN_COMPLEX_DIV_MIN + mode - MIN_MODE_COMPLEX_FLOAT)); else gcc_unreachable (); - fn = built_in_decls[bcode]; + fn = builtin_decl_explicit (bcode); stmt = gimple_build_call (fn, 4, ar, ai, br, bi); gimple_call_set_lhs (stmt, lhs); @@ -1005,7 +1049,7 @@ case PAIR (ONLY_IMAG, ONLY_REAL): rr = ar; if (TREE_CODE (ai) == REAL_CST - && REAL_VALUES_IDENTICAL (TREE_REAL_CST (ai), dconst1)) + && real_identical (&TREE_REAL_CST (ai), &dconst1)) ri = br; else ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br); @@ -1104,7 +1148,7 @@ { tree rr, ri, ratio, div, t1, t2, tr, ti, compare; basic_block bb_cond, bb_true, bb_false, bb_join; - gimple stmt; + gimple *stmt; /* Examine |br| < |bi|, and branch. */ t1 = gimplify_build1 (gsi, ABS_EXPR, inner_type, br); @@ -1118,14 +1162,14 @@ if (TREE_CODE (compare) != INTEGER_CST) { edge e; - gimple stmt; + gimple *stmt; tree cond, tmp; - tmp = create_tmp_var (boolean_type_node, NULL); + tmp = create_tmp_var (boolean_type_node); stmt = gimple_build_assign (tmp, compare); if (gimple_in_ssa_p (cfun)) { - tmp = make_ssa_name (tmp, stmt); + tmp = make_ssa_name (tmp, stmt); gimple_assign_set_lhs (stmt, tmp); } @@ -1142,13 +1186,22 @@ bb_join = e->dest; bb_true = create_empty_bb (bb_cond); bb_false = create_empty_bb (bb_true); + bb_true->frequency = bb_false->frequency = bb_cond->frequency / 2; + bb_true->count = bb_false->count + = bb_cond->count.apply_probability (profile_probability::even ()); /* Wire the blocks together. */ e->flags = EDGE_TRUE_VALUE; + /* TODO: With value profile we could add an historgram to determine real + branch outcome. */ + e->probability = profile_probability::even (); redirect_edge_succ (e, bb_true); - make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE); - make_edge (bb_true, bb_join, EDGE_FALLTHRU); - make_edge (bb_false, bb_join, EDGE_FALLTHRU); + edge e2 = make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE); + e2->probability = profile_probability::even (); + make_single_succ_edge (bb_true, bb_join, EDGE_FALLTHRU); + make_single_succ_edge (bb_false, bb_join, EDGE_FALLTHRU); + add_bb_to_loop (bb_true, bb_cond->loop_father); + add_bb_to_loop (bb_false, bb_cond->loop_father); /* Update dominance info. Note that bb_join's data was updated by split_block. */ @@ -1158,8 +1211,8 @@ set_immediate_dominator (CDI_DOMINATORS, bb_false, bb_cond); } - rr = make_rename_temp (inner_type, NULL); - ri = make_rename_temp (inner_type, NULL); + rr = create_tmp_reg (inner_type); + ri = create_tmp_reg (inner_type); } /* In the TRUE branch, we compute @@ -1290,6 +1343,7 @@ rr = gimplify_build2 (gsi, code, inner_type, ai, bi); ri = gimplify_build2 (gsi, code, inner_type, ar, bi); ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ri); + break; case PAIR (ONLY_REAL, VARYING): case PAIR (ONLY_IMAG, VARYING): @@ -1364,7 +1418,7 @@ tree br, tree bi, enum tree_code code) { tree cr, ci, cc, type; - gimple stmt; + gimple *stmt; cr = gimplify_build2 (gsi, code, boolean_type_node, ar, br); ci = gimplify_build2 (gsi, code, boolean_type_node, ai, bi); @@ -1377,8 +1431,11 @@ switch (gimple_code (stmt)) { case GIMPLE_RETURN: - type = TREE_TYPE (gimple_return_retval (stmt)); - gimple_return_set_retval (stmt, fold_convert (type, cc)); + { + greturn *return_stmt = as_a <greturn *> (stmt); + type = TREE_TYPE (gimple_return_retval (return_stmt)); + gimple_return_set_retval (return_stmt, fold_convert (type, cc)); + } break; case GIMPLE_ASSIGN: @@ -1388,9 +1445,12 @@ break; case GIMPLE_COND: - gimple_cond_set_code (stmt, EQ_EXPR); - gimple_cond_set_lhs (stmt, cc); - gimple_cond_set_rhs (stmt, boolean_true_node); + { + gcond *cond_stmt = as_a <gcond *> (stmt); + gimple_cond_set_code (cond_stmt, EQ_EXPR); + gimple_cond_set_lhs (cond_stmt, cc); + gimple_cond_set_rhs (cond_stmt, boolean_true_node); + } break; default: @@ -1400,18 +1460,54 @@ update_stmt (stmt); } +/* Expand inline asm that sets some complex SSA_NAMEs. */ + +static void +expand_complex_asm (gimple_stmt_iterator *gsi) +{ + gasm *stmt = as_a <gasm *> (gsi_stmt (*gsi)); + unsigned int i; + + for (i = 0; i < gimple_asm_noutputs (stmt); ++i) + { + tree link = gimple_asm_output_op (stmt, i); + tree op = TREE_VALUE (link); + if (TREE_CODE (op) == SSA_NAME + && TREE_CODE (TREE_TYPE (op)) == COMPLEX_TYPE) + { + tree type = TREE_TYPE (op); + tree inner_type = TREE_TYPE (type); + tree r = build1 (REALPART_EXPR, inner_type, op); + tree i = build1 (IMAGPART_EXPR, inner_type, op); + gimple_seq list = set_component_ssa_name (op, false, r); + + if (list) + gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING); + + list = set_component_ssa_name (op, true, i); + if (list) + gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING); + } + } +} /* Process one statement. If we identify a complex operation, expand it. */ static void expand_complex_operations_1 (gimple_stmt_iterator *gsi) { - gimple stmt = gsi_stmt (*gsi); + gimple *stmt = gsi_stmt (*gsi); tree type, inner_type, lhs; tree ac, ar, ai, bc, br, bi; complex_lattice_t al, bl; enum tree_code code; + if (gimple_code (stmt) == GIMPLE_ASM) + { + expand_complex_asm (gsi); + return; + } + lhs = gimple_get_lhs (stmt); if (!lhs && gimple_code (stmt) != GIMPLE_COND) return; @@ -1440,7 +1536,7 @@ case EQ_EXPR: case NE_EXPR: /* Note, both GIMPLE_ASSIGN and GIMPLE_COND may have an EQ_EXPR - subocde, so we need to access the operands using gimple_op. */ + subcode, so we need to access the operands using gimple_op. */ inner_type = TREE_TYPE (gimple_op (stmt, 1)); if (TREE_CODE (inner_type) != COMPLEX_TYPE) return; @@ -1565,98 +1661,145 @@ static unsigned int tree_lower_complex (void) { - int old_last_basic_block; gimple_stmt_iterator gsi; basic_block bb; + int n_bbs, i; + int *rpo; if (!init_dont_simulate_again ()) return 0; - complex_lattice_values = VEC_alloc (complex_lattice_t, heap, num_ssa_names); - VEC_safe_grow_cleared (complex_lattice_t, heap, - complex_lattice_values, num_ssa_names); + complex_lattice_values.create (num_ssa_names); + complex_lattice_values.safe_grow_cleared (num_ssa_names); init_parameter_lattice_values (); ssa_propagate (complex_visit_stmt, complex_visit_phi); - complex_variable_components = htab_create (10, int_tree_map_hash, - int_tree_map_eq, free); + complex_variable_components = new int_tree_htab_type (10); - complex_ssa_name_components = VEC_alloc (tree, heap, 2*num_ssa_names); - VEC_safe_grow_cleared (tree, heap, complex_ssa_name_components, - 2 * num_ssa_names); + complex_ssa_name_components.create (2 * num_ssa_names); + complex_ssa_name_components.safe_grow_cleared (2 * num_ssa_names); update_parameter_components (); - /* ??? Ideally we'd traverse the blocks in breadth-first order. */ - old_last_basic_block = last_basic_block; - FOR_EACH_BB (bb) + rpo = XNEWVEC (int, last_basic_block_for_fn (cfun)); + n_bbs = pre_and_rev_post_order_compute (NULL, rpo, false); + for (i = 0; i < n_bbs; i++) { - if (bb->index >= old_last_basic_block) - continue; - + bb = BASIC_BLOCK_FOR_FN (cfun, rpo[i]); update_phi_components (bb); for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi)) expand_complex_operations_1 (&gsi); } + free (rpo); + + if (!phis_to_revisit.is_empty ()) + { + unsigned int n = phis_to_revisit.length (); + for (unsigned int j = 0; j < n; j += 3) + for (unsigned int k = 0; k < 2; k++) + if (gphi *phi = phis_to_revisit[j + k + 1]) + { + unsigned int m = gimple_phi_num_args (phi); + for (unsigned int l = 0; l < m; ++l) + { + tree op = gimple_phi_arg_def (phi, l); + if (TREE_CODE (op) == SSA_NAME + || is_gimple_min_invariant (op)) + continue; + tree arg = gimple_phi_arg_def (phis_to_revisit[j], l); + op = extract_component (NULL, arg, k > 0, false, false); + SET_PHI_ARG_DEF (phi, l, op); + } + } + phis_to_revisit.release (); + } + gsi_commit_edge_inserts (); - htab_delete (complex_variable_components); - VEC_free (tree, heap, complex_ssa_name_components); - VEC_free (complex_lattice_t, heap, complex_lattice_values); + delete complex_variable_components; + complex_variable_components = NULL; + complex_ssa_name_components.release (); + complex_lattice_values.release (); return 0; } -struct gimple_opt_pass pass_lower_complex = +namespace { + +const pass_data pass_data_lower_complex = +{ + GIMPLE_PASS, /* type */ + "cplxlower", /* name */ + OPTGROUP_NONE, /* optinfo_flags */ + TV_NONE, /* tv_id */ + PROP_ssa, /* properties_required */ + PROP_gimple_lcx, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_update_ssa, /* todo_flags_finish */ +}; + +class pass_lower_complex : public gimple_opt_pass { - { - GIMPLE_PASS, - "cplxlower", /* name */ - 0, /* gate */ - tree_lower_complex, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_NONE, /* tv_id */ - PROP_ssa, /* properties_required */ - PROP_gimple_lcx, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func - | TODO_ggc_collect - | TODO_update_ssa - | TODO_verify_stmts /* todo_flags_finish */ - } -}; +public: + pass_lower_complex (gcc::context *ctxt) + : gimple_opt_pass (pass_data_lower_complex, ctxt) + {} + + /* opt_pass methods: */ + opt_pass * clone () { return new pass_lower_complex (m_ctxt); } + virtual unsigned int execute (function *) { return tree_lower_complex (); } + +}; // class pass_lower_complex + +} // anon namespace + +gimple_opt_pass * +make_pass_lower_complex (gcc::context *ctxt) +{ + return new pass_lower_complex (ctxt); +} -static bool -gate_no_optimization (void) +namespace { + +const pass_data pass_data_lower_complex_O0 = { - /* With errors, normal optimization passes are not run. If we don't - lower complex operations at all, rtl expansion will abort. */ - return !(cfun->curr_properties & PROP_gimple_lcx); -} + GIMPLE_PASS, /* type */ + "cplxlower0", /* name */ + OPTGROUP_NONE, /* optinfo_flags */ + TV_NONE, /* tv_id */ + PROP_cfg, /* properties_required */ + PROP_gimple_lcx, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_update_ssa, /* todo_flags_finish */ +}; -struct gimple_opt_pass pass_lower_complex_O0 = +class pass_lower_complex_O0 : public gimple_opt_pass { - { - GIMPLE_PASS, - "cplxlower0", /* name */ - gate_no_optimization, /* gate */ - tree_lower_complex, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_NONE, /* tv_id */ - PROP_cfg, /* properties_required */ - PROP_gimple_lcx, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func - | TODO_ggc_collect - | TODO_update_ssa - | TODO_verify_stmts /* todo_flags_finish */ - } -}; +public: + pass_lower_complex_O0 (gcc::context *ctxt) + : gimple_opt_pass (pass_data_lower_complex_O0, ctxt) + {} + + /* opt_pass methods: */ + virtual bool gate (function *fun) + { + /* With errors, normal optimization passes are not run. If we don't + lower complex operations at all, rtl expansion will abort. */ + return !(fun->curr_properties & PROP_gimple_lcx); + } + + virtual unsigned int execute (function *) { return tree_lower_complex (); } + +}; // class pass_lower_complex_O0 + +} // anon namespace + +gimple_opt_pass * +make_pass_lower_complex_O0 (gcc::context *ctxt) +{ + return new pass_lower_complex_O0 (ctxt); +}