/* Lower complex number operations to scalar operations.
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/* Lower complex number operations to scalar operations.
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Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
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Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3, or (at your option) any
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Free Software Foundation; either version 3, or (at your option) any
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later version.
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later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "config.h"
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#include "system.h"
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#include "system.h"
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#include "coretypes.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tm.h"
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#include "tree.h"
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#include "tree.h"
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#include "rtl.h"
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#include "rtl.h"
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#include "real.h"
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#include "real.h"
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#include "flags.h"
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#include "flags.h"
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#include "tree-flow.h"
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#include "tree-flow.h"
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#include "gimple.h"
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#include "gimple.h"
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#include "tree-iterator.h"
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#include "tree-iterator.h"
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#include "tree-pass.h"
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#include "tree-pass.h"
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#include "tree-ssa-propagate.h"
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#include "tree-ssa-propagate.h"
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#include "diagnostic.h"
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#include "diagnostic.h"
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/* For each complex ssa name, a lattice value. We're interested in finding
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/* For each complex ssa name, a lattice value. We're interested in finding
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out whether a complex number is degenerate in some way, having only real
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out whether a complex number is degenerate in some way, having only real
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or only complex parts. */
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or only complex parts. */
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enum
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enum
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{
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{
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UNINITIALIZED = 0,
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UNINITIALIZED = 0,
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ONLY_REAL = 1,
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ONLY_REAL = 1,
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ONLY_IMAG = 2,
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ONLY_IMAG = 2,
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VARYING = 3
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VARYING = 3
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};
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};
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/* The type complex_lattice_t holds combinations of the above
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/* The type complex_lattice_t holds combinations of the above
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constants. */
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constants. */
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typedef int complex_lattice_t;
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typedef int complex_lattice_t;
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#define PAIR(a, b) ((a) << 2 | (b))
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#define PAIR(a, b) ((a) << 2 | (b))
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DEF_VEC_I(complex_lattice_t);
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DEF_VEC_I(complex_lattice_t);
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DEF_VEC_ALLOC_I(complex_lattice_t, heap);
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DEF_VEC_ALLOC_I(complex_lattice_t, heap);
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static VEC(complex_lattice_t, heap) *complex_lattice_values;
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static VEC(complex_lattice_t, heap) *complex_lattice_values;
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/* For each complex variable, a pair of variables for the components exists in
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/* For each complex variable, a pair of variables for the components exists in
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the hashtable. */
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the hashtable. */
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static htab_t complex_variable_components;
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static htab_t complex_variable_components;
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/* For each complex SSA_NAME, a pair of ssa names for the components. */
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/* For each complex SSA_NAME, a pair of ssa names for the components. */
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static VEC(tree, heap) *complex_ssa_name_components;
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static VEC(tree, heap) *complex_ssa_name_components;
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/* Lookup UID in the complex_variable_components hashtable and return the
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/* Lookup UID in the complex_variable_components hashtable and return the
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associated tree. */
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associated tree. */
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static tree
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static tree
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cvc_lookup (unsigned int uid)
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cvc_lookup (unsigned int uid)
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{
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{
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struct int_tree_map *h, in;
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struct int_tree_map *h, in;
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in.uid = uid;
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in.uid = uid;
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h = (struct int_tree_map *) htab_find_with_hash (complex_variable_components, &in, uid);
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h = (struct int_tree_map *) htab_find_with_hash (complex_variable_components, &in, uid);
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return h ? h->to : NULL;
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return h ? h->to : NULL;
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}
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}
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/* Insert the pair UID, TO into the complex_variable_components hashtable. */
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/* Insert the pair UID, TO into the complex_variable_components hashtable. */
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static void
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static void
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cvc_insert (unsigned int uid, tree to)
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cvc_insert (unsigned int uid, tree to)
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{
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{
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struct int_tree_map *h;
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struct int_tree_map *h;
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void **loc;
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void **loc;
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h = XNEW (struct int_tree_map);
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h = XNEW (struct int_tree_map);
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h->uid = uid;
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h->uid = uid;
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h->to = to;
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h->to = to;
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loc = htab_find_slot_with_hash (complex_variable_components, h,
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loc = htab_find_slot_with_hash (complex_variable_components, h,
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uid, INSERT);
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uid, INSERT);
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*(struct int_tree_map **) loc = h;
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*(struct int_tree_map **) loc = h;
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}
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}
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/* Return true if T is not a zero constant. In the case of real values,
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/* Return true if T is not a zero constant. In the case of real values,
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we're only interested in +0.0. */
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we're only interested in +0.0. */
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static int
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static int
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some_nonzerop (tree t)
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some_nonzerop (tree t)
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{
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{
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int zerop = false;
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int zerop = false;
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/* Operations with real or imaginary part of a complex number zero
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/* Operations with real or imaginary part of a complex number zero
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cannot be treated the same as operations with a real or imaginary
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cannot be treated the same as operations with a real or imaginary
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operand if we care about the signs of zeros in the result. */
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operand if we care about the signs of zeros in the result. */
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if (TREE_CODE (t) == REAL_CST && !flag_signed_zeros)
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if (TREE_CODE (t) == REAL_CST && !flag_signed_zeros)
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zerop = REAL_VALUES_IDENTICAL (TREE_REAL_CST (t), dconst0);
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zerop = REAL_VALUES_IDENTICAL (TREE_REAL_CST (t), dconst0);
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else if (TREE_CODE (t) == FIXED_CST)
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else if (TREE_CODE (t) == FIXED_CST)
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zerop = fixed_zerop (t);
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zerop = fixed_zerop (t);
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else if (TREE_CODE (t) == INTEGER_CST)
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else if (TREE_CODE (t) == INTEGER_CST)
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zerop = integer_zerop (t);
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zerop = integer_zerop (t);
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return !zerop;
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return !zerop;
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}
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}
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/* Compute a lattice value from the components of a complex type REAL
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/* Compute a lattice value from the components of a complex type REAL
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and IMAG. */
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and IMAG. */
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static complex_lattice_t
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static complex_lattice_t
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find_lattice_value_parts (tree real, tree imag)
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find_lattice_value_parts (tree real, tree imag)
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{
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{
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int r, i;
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int r, i;
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complex_lattice_t ret;
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complex_lattice_t ret;
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r = some_nonzerop (real);
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r = some_nonzerop (real);
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i = some_nonzerop (imag);
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i = some_nonzerop (imag);
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ret = r * ONLY_REAL + i * ONLY_IMAG;
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ret = r * ONLY_REAL + i * ONLY_IMAG;
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/* ??? On occasion we could do better than mapping 0+0i to real, but we
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/* ??? On occasion we could do better than mapping 0+0i to real, but we
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certainly don't want to leave it UNINITIALIZED, which eventually gets
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certainly don't want to leave it UNINITIALIZED, which eventually gets
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mapped to VARYING. */
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mapped to VARYING. */
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if (ret == UNINITIALIZED)
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if (ret == UNINITIALIZED)
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ret = ONLY_REAL;
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ret = ONLY_REAL;
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return ret;
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return ret;
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}
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}
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/* Compute a lattice value from gimple_val T. */
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/* Compute a lattice value from gimple_val T. */
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static complex_lattice_t
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static complex_lattice_t
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find_lattice_value (tree t)
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find_lattice_value (tree t)
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{
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{
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tree real, imag;
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tree real, imag;
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switch (TREE_CODE (t))
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switch (TREE_CODE (t))
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{
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{
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case SSA_NAME:
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case SSA_NAME:
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return VEC_index (complex_lattice_t, complex_lattice_values,
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return VEC_index (complex_lattice_t, complex_lattice_values,
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SSA_NAME_VERSION (t));
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SSA_NAME_VERSION (t));
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case COMPLEX_CST:
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case COMPLEX_CST:
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real = TREE_REALPART (t);
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real = TREE_REALPART (t);
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imag = TREE_IMAGPART (t);
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imag = TREE_IMAGPART (t);
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break;
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break;
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default:
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default:
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gcc_unreachable ();
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gcc_unreachable ();
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}
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}
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return find_lattice_value_parts (real, imag);
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return find_lattice_value_parts (real, imag);
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}
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}
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/* Determine if LHS is something for which we're interested in seeing
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/* Determine if LHS is something for which we're interested in seeing
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simulation results. */
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simulation results. */
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static bool
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static bool
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is_complex_reg (tree lhs)
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is_complex_reg (tree lhs)
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{
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{
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return TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE && is_gimple_reg (lhs);
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return TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE && is_gimple_reg (lhs);
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}
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}
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/* Mark the incoming parameters to the function as VARYING. */
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/* Mark the incoming parameters to the function as VARYING. */
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static void
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static void
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init_parameter_lattice_values (void)
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init_parameter_lattice_values (void)
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{
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{
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tree parm, ssa_name;
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tree parm, ssa_name;
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for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = TREE_CHAIN (parm))
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for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = TREE_CHAIN (parm))
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if (is_complex_reg (parm)
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if (is_complex_reg (parm)
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&& var_ann (parm) != NULL
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&& var_ann (parm) != NULL
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&& (ssa_name = gimple_default_def (cfun, parm)) != NULL_TREE)
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&& (ssa_name = gimple_default_def (cfun, parm)) != NULL_TREE)
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VEC_replace (complex_lattice_t, complex_lattice_values,
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VEC_replace (complex_lattice_t, complex_lattice_values,
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SSA_NAME_VERSION (ssa_name), VARYING);
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SSA_NAME_VERSION (ssa_name), VARYING);
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}
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}
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/* Initialize simulation state for each statement. Return false if we
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/* Initialize simulation state for each statement. Return false if we
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found no statements we want to simulate, and thus there's nothing
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found no statements we want to simulate, and thus there's nothing
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for the entire pass to do. */
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for the entire pass to do. */
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static bool
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static bool
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init_dont_simulate_again (void)
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init_dont_simulate_again (void)
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{
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{
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basic_block bb;
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basic_block bb;
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gimple_stmt_iterator gsi;
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gimple_stmt_iterator gsi;
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gimple phi;
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gimple phi;
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bool saw_a_complex_op = false;
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bool saw_a_complex_op = false;
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FOR_EACH_BB (bb)
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FOR_EACH_BB (bb)
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{
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{
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for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
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for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
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{
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{
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phi = gsi_stmt (gsi);
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phi = gsi_stmt (gsi);
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prop_set_simulate_again (phi,
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prop_set_simulate_again (phi,
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is_complex_reg (gimple_phi_result (phi)));
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is_complex_reg (gimple_phi_result (phi)));
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}
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}
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for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
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for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
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{
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{
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gimple stmt;
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gimple stmt;
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tree op0, op1;
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tree op0, op1;
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bool sim_again_p;
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bool sim_again_p;
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stmt = gsi_stmt (gsi);
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stmt = gsi_stmt (gsi);
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op0 = op1 = NULL_TREE;
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op0 = op1 = NULL_TREE;
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/* Most control-altering statements must be initially
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/* Most control-altering statements must be initially
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simulated, else we won't cover the entire cfg. */
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simulated, else we won't cover the entire cfg. */
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sim_again_p = stmt_ends_bb_p (stmt);
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sim_again_p = stmt_ends_bb_p (stmt);
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|
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switch (gimple_code (stmt))
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switch (gimple_code (stmt))
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{
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{
|
case GIMPLE_CALL:
|
case GIMPLE_CALL:
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if (gimple_call_lhs (stmt))
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if (gimple_call_lhs (stmt))
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sim_again_p = is_complex_reg (gimple_call_lhs (stmt));
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sim_again_p = is_complex_reg (gimple_call_lhs (stmt));
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break;
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break;
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|
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case GIMPLE_ASSIGN:
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case GIMPLE_ASSIGN:
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sim_again_p = is_complex_reg (gimple_assign_lhs (stmt));
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sim_again_p = is_complex_reg (gimple_assign_lhs (stmt));
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if (gimple_assign_rhs_code (stmt) == REALPART_EXPR
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if (gimple_assign_rhs_code (stmt) == REALPART_EXPR
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|| gimple_assign_rhs_code (stmt) == IMAGPART_EXPR)
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|| gimple_assign_rhs_code (stmt) == IMAGPART_EXPR)
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op0 = TREE_OPERAND (gimple_assign_rhs1 (stmt), 0);
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op0 = TREE_OPERAND (gimple_assign_rhs1 (stmt), 0);
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else
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else
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op0 = gimple_assign_rhs1 (stmt);
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op0 = gimple_assign_rhs1 (stmt);
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if (gimple_num_ops (stmt) > 2)
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if (gimple_num_ops (stmt) > 2)
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op1 = gimple_assign_rhs2 (stmt);
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op1 = gimple_assign_rhs2 (stmt);
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break;
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break;
|
|
|
case GIMPLE_COND:
|
case GIMPLE_COND:
|
op0 = gimple_cond_lhs (stmt);
|
op0 = gimple_cond_lhs (stmt);
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op1 = gimple_cond_rhs (stmt);
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op1 = gimple_cond_rhs (stmt);
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break;
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break;
|
|
|
default:
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default:
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break;
|
break;
|
}
|
}
|
|
|
if (op0 || op1)
|
if (op0 || op1)
|
switch (gimple_expr_code (stmt))
|
switch (gimple_expr_code (stmt))
|
{
|
{
|
case EQ_EXPR:
|
case EQ_EXPR:
|
case NE_EXPR:
|
case NE_EXPR:
|
case PLUS_EXPR:
|
case PLUS_EXPR:
|
case MINUS_EXPR:
|
case MINUS_EXPR:
|
case MULT_EXPR:
|
case MULT_EXPR:
|
case TRUNC_DIV_EXPR:
|
case TRUNC_DIV_EXPR:
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case CEIL_DIV_EXPR:
|
case CEIL_DIV_EXPR:
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case FLOOR_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case ROUND_DIV_EXPR:
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case ROUND_DIV_EXPR:
|
case RDIV_EXPR:
|
case RDIV_EXPR:
|
if (TREE_CODE (TREE_TYPE (op0)) == COMPLEX_TYPE
|
if (TREE_CODE (TREE_TYPE (op0)) == COMPLEX_TYPE
|
|| TREE_CODE (TREE_TYPE (op1)) == COMPLEX_TYPE)
|
|| TREE_CODE (TREE_TYPE (op1)) == COMPLEX_TYPE)
|
saw_a_complex_op = true;
|
saw_a_complex_op = true;
|
break;
|
break;
|
|
|
case NEGATE_EXPR:
|
case NEGATE_EXPR:
|
case CONJ_EXPR:
|
case CONJ_EXPR:
|
if (TREE_CODE (TREE_TYPE (op0)) == COMPLEX_TYPE)
|
if (TREE_CODE (TREE_TYPE (op0)) == COMPLEX_TYPE)
|
saw_a_complex_op = true;
|
saw_a_complex_op = true;
|
break;
|
break;
|
|
|
case REALPART_EXPR:
|
case REALPART_EXPR:
|
case IMAGPART_EXPR:
|
case IMAGPART_EXPR:
|
/* The total store transformation performed during
|
/* The total store transformation performed during
|
gimplification creates such uninitialized loads
|
gimplification creates such uninitialized loads
|
and we need to lower the statement to be able
|
and we need to lower the statement to be able
|
to fix things up. */
|
to fix things up. */
|
if (TREE_CODE (op0) == SSA_NAME
|
if (TREE_CODE (op0) == SSA_NAME
|
&& ssa_undefined_value_p (op0))
|
&& ssa_undefined_value_p (op0))
|
saw_a_complex_op = true;
|
saw_a_complex_op = true;
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
prop_set_simulate_again (stmt, sim_again_p);
|
prop_set_simulate_again (stmt, sim_again_p);
|
}
|
}
|
}
|
}
|
|
|
return saw_a_complex_op;
|
return saw_a_complex_op;
|
}
|
}
|
|
|
|
|
/* Evaluate statement STMT against the complex lattice defined above. */
|
/* Evaluate statement STMT against the complex lattice defined above. */
|
|
|
static enum ssa_prop_result
|
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)
|
tree *result_p)
|
{
|
{
|
complex_lattice_t new_l, old_l, op1_l, op2_l;
|
complex_lattice_t new_l, old_l, op1_l, op2_l;
|
unsigned int ver;
|
unsigned int ver;
|
tree lhs;
|
tree lhs;
|
|
|
lhs = gimple_get_lhs (stmt);
|
lhs = gimple_get_lhs (stmt);
|
/* Skip anything but GIMPLE_ASSIGN and GIMPLE_CALL with a lhs. */
|
/* Skip anything but GIMPLE_ASSIGN and GIMPLE_CALL with a lhs. */
|
if (!lhs)
|
if (!lhs)
|
return SSA_PROP_VARYING;
|
return SSA_PROP_VARYING;
|
|
|
/* These conditions should be satisfied due to the initial filter
|
/* These conditions should be satisfied due to the initial filter
|
set up in init_dont_simulate_again. */
|
set up in init_dont_simulate_again. */
|
gcc_assert (TREE_CODE (lhs) == SSA_NAME);
|
gcc_assert (TREE_CODE (lhs) == SSA_NAME);
|
gcc_assert (TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE);
|
gcc_assert (TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE);
|
|
|
*result_p = lhs;
|
*result_p = lhs;
|
ver = SSA_NAME_VERSION (lhs);
|
ver = SSA_NAME_VERSION (lhs);
|
old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver);
|
old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver);
|
|
|
switch (gimple_expr_code (stmt))
|
switch (gimple_expr_code (stmt))
|
{
|
{
|
case SSA_NAME:
|
case SSA_NAME:
|
case COMPLEX_CST:
|
case COMPLEX_CST:
|
new_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
new_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
break;
|
break;
|
|
|
case COMPLEX_EXPR:
|
case COMPLEX_EXPR:
|
new_l = find_lattice_value_parts (gimple_assign_rhs1 (stmt),
|
new_l = find_lattice_value_parts (gimple_assign_rhs1 (stmt),
|
gimple_assign_rhs2 (stmt));
|
gimple_assign_rhs2 (stmt));
|
break;
|
break;
|
|
|
case PLUS_EXPR:
|
case PLUS_EXPR:
|
case MINUS_EXPR:
|
case MINUS_EXPR:
|
op1_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
op1_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
op2_l = find_lattice_value (gimple_assign_rhs2 (stmt));
|
op2_l = find_lattice_value (gimple_assign_rhs2 (stmt));
|
|
|
/* We've set up the lattice values such that IOR neatly
|
/* We've set up the lattice values such that IOR neatly
|
models addition. */
|
models addition. */
|
new_l = op1_l | op2_l;
|
new_l = op1_l | op2_l;
|
break;
|
break;
|
|
|
case MULT_EXPR:
|
case MULT_EXPR:
|
case RDIV_EXPR:
|
case RDIV_EXPR:
|
case TRUNC_DIV_EXPR:
|
case TRUNC_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
op1_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
op1_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
op2_l = find_lattice_value (gimple_assign_rhs2 (stmt));
|
op2_l = find_lattice_value (gimple_assign_rhs2 (stmt));
|
|
|
/* Obviously, if either varies, so does the result. */
|
/* Obviously, if either varies, so does the result. */
|
if (op1_l == VARYING || op2_l == VARYING)
|
if (op1_l == VARYING || op2_l == VARYING)
|
new_l = VARYING;
|
new_l = VARYING;
|
/* Don't prematurely promote variables if we've not yet seen
|
/* Don't prematurely promote variables if we've not yet seen
|
their inputs. */
|
their inputs. */
|
else if (op1_l == UNINITIALIZED)
|
else if (op1_l == UNINITIALIZED)
|
new_l = op2_l;
|
new_l = op2_l;
|
else if (op2_l == UNINITIALIZED)
|
else if (op2_l == UNINITIALIZED)
|
new_l = op1_l;
|
new_l = op1_l;
|
else
|
else
|
{
|
{
|
/* At this point both numbers have only one component. If the
|
/* At this point both numbers have only one component. If the
|
numbers are of opposite kind, the result is imaginary,
|
numbers are of opposite kind, the result is imaginary,
|
otherwise the result is real. The add/subtract translates
|
otherwise the result is real. The add/subtract translates
|
the real/imag from/to 0/1; the ^ performs the comparison. */
|
the real/imag from/to 0/1; the ^ performs the comparison. */
|
new_l = ((op1_l - ONLY_REAL) ^ (op2_l - ONLY_REAL)) + ONLY_REAL;
|
new_l = ((op1_l - ONLY_REAL) ^ (op2_l - ONLY_REAL)) + ONLY_REAL;
|
|
|
/* Don't allow the lattice value to flip-flop indefinitely. */
|
/* Don't allow the lattice value to flip-flop indefinitely. */
|
new_l |= old_l;
|
new_l |= old_l;
|
}
|
}
|
break;
|
break;
|
|
|
case NEGATE_EXPR:
|
case NEGATE_EXPR:
|
case CONJ_EXPR:
|
case CONJ_EXPR:
|
new_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
new_l = find_lattice_value (gimple_assign_rhs1 (stmt));
|
break;
|
break;
|
|
|
default:
|
default:
|
new_l = VARYING;
|
new_l = VARYING;
|
break;
|
break;
|
}
|
}
|
|
|
/* If nothing changed this round, let the propagator know. */
|
/* If nothing changed this round, let the propagator know. */
|
if (new_l == old_l)
|
if (new_l == old_l)
|
return SSA_PROP_NOT_INTERESTING;
|
return SSA_PROP_NOT_INTERESTING;
|
|
|
VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l);
|
VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l);
|
return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING;
|
return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING;
|
}
|
}
|
|
|
/* Evaluate a PHI node against the complex lattice defined above. */
|
/* Evaluate a PHI node against the complex lattice defined above. */
|
|
|
static enum ssa_prop_result
|
static enum ssa_prop_result
|
complex_visit_phi (gimple phi)
|
complex_visit_phi (gimple phi)
|
{
|
{
|
complex_lattice_t new_l, old_l;
|
complex_lattice_t new_l, old_l;
|
unsigned int ver;
|
unsigned int ver;
|
tree lhs;
|
tree lhs;
|
int i;
|
int i;
|
|
|
lhs = gimple_phi_result (phi);
|
lhs = gimple_phi_result (phi);
|
|
|
/* This condition should be satisfied due to the initial filter
|
/* This condition should be satisfied due to the initial filter
|
set up in init_dont_simulate_again. */
|
set up in init_dont_simulate_again. */
|
gcc_assert (TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE);
|
gcc_assert (TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE);
|
|
|
/* We've set up the lattice values such that IOR neatly models PHI meet. */
|
/* We've set up the lattice values such that IOR neatly models PHI meet. */
|
new_l = UNINITIALIZED;
|
new_l = UNINITIALIZED;
|
for (i = gimple_phi_num_args (phi) - 1; i >= 0; --i)
|
for (i = gimple_phi_num_args (phi) - 1; i >= 0; --i)
|
new_l |= find_lattice_value (gimple_phi_arg_def (phi, i));
|
new_l |= find_lattice_value (gimple_phi_arg_def (phi, i));
|
|
|
ver = SSA_NAME_VERSION (lhs);
|
ver = SSA_NAME_VERSION (lhs);
|
old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver);
|
old_l = VEC_index (complex_lattice_t, complex_lattice_values, ver);
|
|
|
if (new_l == old_l)
|
if (new_l == old_l)
|
return SSA_PROP_NOT_INTERESTING;
|
return SSA_PROP_NOT_INTERESTING;
|
|
|
VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l);
|
VEC_replace (complex_lattice_t, complex_lattice_values, ver, new_l);
|
return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING;
|
return new_l == VARYING ? SSA_PROP_VARYING : SSA_PROP_INTERESTING;
|
}
|
}
|
|
|
/* Create one backing variable for a complex component of ORIG. */
|
/* Create one backing variable for a complex component of ORIG. */
|
|
|
static tree
|
static tree
|
create_one_component_var (tree type, tree orig, const char *prefix,
|
create_one_component_var (tree type, tree orig, const char *prefix,
|
const char *suffix, enum tree_code code)
|
const char *suffix, enum tree_code code)
|
{
|
{
|
tree r = create_tmp_var (type, prefix);
|
tree r = create_tmp_var (type, prefix);
|
add_referenced_var (r);
|
add_referenced_var (r);
|
|
|
DECL_SOURCE_LOCATION (r) = DECL_SOURCE_LOCATION (orig);
|
DECL_SOURCE_LOCATION (r) = DECL_SOURCE_LOCATION (orig);
|
DECL_ARTIFICIAL (r) = 1;
|
DECL_ARTIFICIAL (r) = 1;
|
|
|
if (DECL_NAME (orig) && !DECL_IGNORED_P (orig))
|
if (DECL_NAME (orig) && !DECL_IGNORED_P (orig))
|
{
|
{
|
const char *name = IDENTIFIER_POINTER (DECL_NAME (orig));
|
const char *name = IDENTIFIER_POINTER (DECL_NAME (orig));
|
|
|
DECL_NAME (r) = get_identifier (ACONCAT ((name, suffix, NULL)));
|
DECL_NAME (r) = get_identifier (ACONCAT ((name, suffix, NULL)));
|
|
|
SET_DECL_DEBUG_EXPR (r, build1 (code, type, orig));
|
SET_DECL_DEBUG_EXPR (r, build1 (code, type, orig));
|
DECL_DEBUG_EXPR_IS_FROM (r) = 1;
|
DECL_DEBUG_EXPR_IS_FROM (r) = 1;
|
DECL_IGNORED_P (r) = 0;
|
DECL_IGNORED_P (r) = 0;
|
TREE_NO_WARNING (r) = TREE_NO_WARNING (orig);
|
TREE_NO_WARNING (r) = TREE_NO_WARNING (orig);
|
}
|
}
|
else
|
else
|
{
|
{
|
DECL_IGNORED_P (r) = 1;
|
DECL_IGNORED_P (r) = 1;
|
TREE_NO_WARNING (r) = 1;
|
TREE_NO_WARNING (r) = 1;
|
}
|
}
|
|
|
return r;
|
return r;
|
}
|
}
|
|
|
/* Retrieve a value for a complex component of VAR. */
|
/* Retrieve a value for a complex component of VAR. */
|
|
|
static tree
|
static tree
|
get_component_var (tree var, bool imag_p)
|
get_component_var (tree var, bool imag_p)
|
{
|
{
|
size_t decl_index = DECL_UID (var) * 2 + imag_p;
|
size_t decl_index = DECL_UID (var) * 2 + imag_p;
|
tree ret = cvc_lookup (decl_index);
|
tree ret = cvc_lookup (decl_index);
|
|
|
if (ret == NULL)
|
if (ret == NULL)
|
{
|
{
|
ret = create_one_component_var (TREE_TYPE (TREE_TYPE (var)), var,
|
ret = create_one_component_var (TREE_TYPE (TREE_TYPE (var)), var,
|
imag_p ? "CI" : "CR",
|
imag_p ? "CI" : "CR",
|
imag_p ? "$imag" : "$real",
|
imag_p ? "$imag" : "$real",
|
imag_p ? IMAGPART_EXPR : REALPART_EXPR);
|
imag_p ? IMAGPART_EXPR : REALPART_EXPR);
|
cvc_insert (decl_index, ret);
|
cvc_insert (decl_index, ret);
|
}
|
}
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Retrieve a value for a complex component of SSA_NAME. */
|
/* Retrieve a value for a complex component of SSA_NAME. */
|
|
|
static tree
|
static tree
|
get_component_ssa_name (tree ssa_name, bool imag_p)
|
get_component_ssa_name (tree ssa_name, bool imag_p)
|
{
|
{
|
complex_lattice_t lattice = find_lattice_value (ssa_name);
|
complex_lattice_t lattice = find_lattice_value (ssa_name);
|
size_t ssa_name_index;
|
size_t ssa_name_index;
|
tree ret;
|
tree ret;
|
|
|
if (lattice == (imag_p ? ONLY_REAL : ONLY_IMAG))
|
if (lattice == (imag_p ? ONLY_REAL : ONLY_IMAG))
|
{
|
{
|
tree inner_type = TREE_TYPE (TREE_TYPE (ssa_name));
|
tree inner_type = TREE_TYPE (TREE_TYPE (ssa_name));
|
if (SCALAR_FLOAT_TYPE_P (inner_type))
|
if (SCALAR_FLOAT_TYPE_P (inner_type))
|
return build_real (inner_type, dconst0);
|
return build_real (inner_type, dconst0);
|
else
|
else
|
return build_int_cst (inner_type, 0);
|
return build_int_cst (inner_type, 0);
|
}
|
}
|
|
|
ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p;
|
ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p;
|
ret = VEC_index (tree, complex_ssa_name_components, ssa_name_index);
|
ret = VEC_index (tree, complex_ssa_name_components, ssa_name_index);
|
if (ret == NULL)
|
if (ret == NULL)
|
{
|
{
|
ret = get_component_var (SSA_NAME_VAR (ssa_name), imag_p);
|
ret = get_component_var (SSA_NAME_VAR (ssa_name), imag_p);
|
ret = make_ssa_name (ret, NULL);
|
ret = make_ssa_name (ret, NULL);
|
|
|
/* Copy some properties from the original. In particular, whether it
|
/* Copy some properties from the original. In particular, whether it
|
is used in an abnormal phi, and whether it's uninitialized. */
|
is used in an abnormal phi, and whether it's uninitialized. */
|
SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ret)
|
SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ret)
|
= SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name);
|
= SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name);
|
if (TREE_CODE (SSA_NAME_VAR (ssa_name)) == VAR_DECL
|
if (TREE_CODE (SSA_NAME_VAR (ssa_name)) == VAR_DECL
|
&& gimple_nop_p (SSA_NAME_DEF_STMT (ssa_name)))
|
&& gimple_nop_p (SSA_NAME_DEF_STMT (ssa_name)))
|
{
|
{
|
SSA_NAME_DEF_STMT (ret) = SSA_NAME_DEF_STMT (ssa_name);
|
SSA_NAME_DEF_STMT (ret) = SSA_NAME_DEF_STMT (ssa_name);
|
set_default_def (SSA_NAME_VAR (ret), ret);
|
set_default_def (SSA_NAME_VAR (ret), ret);
|
}
|
}
|
|
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, ret);
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, ret);
|
}
|
}
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Set a value for a complex component of SSA_NAME, return a
|
/* Set a value for a complex component of SSA_NAME, return a
|
gimple_seq of stuff that needs doing. */
|
gimple_seq of stuff that needs doing. */
|
|
|
static gimple_seq
|
static gimple_seq
|
set_component_ssa_name (tree ssa_name, bool imag_p, tree value)
|
set_component_ssa_name (tree ssa_name, bool imag_p, tree value)
|
{
|
{
|
complex_lattice_t lattice = find_lattice_value (ssa_name);
|
complex_lattice_t lattice = find_lattice_value (ssa_name);
|
size_t ssa_name_index;
|
size_t ssa_name_index;
|
tree comp;
|
tree comp;
|
gimple last;
|
gimple last;
|
gimple_seq list;
|
gimple_seq list;
|
|
|
/* We know the value must be zero, else there's a bug in our lattice
|
/* We know the value must be zero, else there's a bug in our lattice
|
analysis. But the value may well be a variable known to contain
|
analysis. But the value may well be a variable known to contain
|
zero. We should be safe ignoring it. */
|
zero. We should be safe ignoring it. */
|
if (lattice == (imag_p ? ONLY_REAL : ONLY_IMAG))
|
if (lattice == (imag_p ? ONLY_REAL : ONLY_IMAG))
|
return NULL;
|
return NULL;
|
|
|
/* If we've already assigned an SSA_NAME to this component, then this
|
/* If we've already assigned an SSA_NAME to this component, then this
|
means that our walk of the basic blocks found a use before the set.
|
means that our walk of the basic blocks found a use before the set.
|
This is fine. Now we should create an initialization for the value
|
This is fine. Now we should create an initialization for the value
|
we created earlier. */
|
we created earlier. */
|
ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p;
|
ssa_name_index = SSA_NAME_VERSION (ssa_name) * 2 + imag_p;
|
comp = VEC_index (tree, complex_ssa_name_components, ssa_name_index);
|
comp = VEC_index (tree, complex_ssa_name_components, ssa_name_index);
|
if (comp)
|
if (comp)
|
;
|
;
|
|
|
/* If we've nothing assigned, and the value we're given is already stable,
|
/* If we've nothing assigned, and the value we're given is already stable,
|
then install that as the value for this SSA_NAME. This preemptively
|
then install that as the value for this SSA_NAME. This preemptively
|
copy-propagates the value, which avoids unnecessary memory allocation. */
|
copy-propagates the value, which avoids unnecessary memory allocation. */
|
else if (is_gimple_min_invariant (value)
|
else if (is_gimple_min_invariant (value)
|
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name))
|
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name))
|
{
|
{
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value);
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value);
|
return NULL;
|
return NULL;
|
}
|
}
|
else if (TREE_CODE (value) == SSA_NAME
|
else if (TREE_CODE (value) == SSA_NAME
|
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name))
|
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (ssa_name))
|
{
|
{
|
/* Replace an anonymous base value with the variable from cvc_lookup.
|
/* Replace an anonymous base value with the variable from cvc_lookup.
|
This should result in better debug info. */
|
This should result in better debug info. */
|
if (DECL_IGNORED_P (SSA_NAME_VAR (value))
|
if (DECL_IGNORED_P (SSA_NAME_VAR (value))
|
&& !DECL_IGNORED_P (SSA_NAME_VAR (ssa_name)))
|
&& !DECL_IGNORED_P (SSA_NAME_VAR (ssa_name)))
|
{
|
{
|
comp = get_component_var (SSA_NAME_VAR (ssa_name), imag_p);
|
comp = get_component_var (SSA_NAME_VAR (ssa_name), imag_p);
|
replace_ssa_name_symbol (value, comp);
|
replace_ssa_name_symbol (value, comp);
|
}
|
}
|
|
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value);
|
VEC_replace (tree, complex_ssa_name_components, ssa_name_index, value);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Finally, we need to stabilize the result by installing the value into
|
/* Finally, we need to stabilize the result by installing the value into
|
a new ssa name. */
|
a new ssa name. */
|
else
|
else
|
comp = get_component_ssa_name (ssa_name, imag_p);
|
comp = get_component_ssa_name (ssa_name, imag_p);
|
|
|
/* Do all the work to assign VALUE to COMP. */
|
/* Do all the work to assign VALUE to COMP. */
|
list = NULL;
|
list = NULL;
|
value = force_gimple_operand (value, &list, false, NULL);
|
value = force_gimple_operand (value, &list, false, NULL);
|
last = gimple_build_assign (comp, value);
|
last = gimple_build_assign (comp, value);
|
gimple_seq_add_stmt (&list, last);
|
gimple_seq_add_stmt (&list, last);
|
gcc_assert (SSA_NAME_DEF_STMT (comp) == last);
|
gcc_assert (SSA_NAME_DEF_STMT (comp) == last);
|
|
|
return list;
|
return list;
|
}
|
}
|
|
|
/* Extract the real or imaginary part of a complex variable or constant.
|
/* Extract the real or imaginary part of a complex variable or constant.
|
Make sure that it's a proper gimple_val and gimplify it if not.
|
Make sure that it's a proper gimple_val and gimplify it if not.
|
Emit any new code before gsi. */
|
Emit any new code before gsi. */
|
|
|
static tree
|
static tree
|
extract_component (gimple_stmt_iterator *gsi, tree t, bool imagpart_p,
|
extract_component (gimple_stmt_iterator *gsi, tree t, bool imagpart_p,
|
bool gimple_p)
|
bool gimple_p)
|
{
|
{
|
switch (TREE_CODE (t))
|
switch (TREE_CODE (t))
|
{
|
{
|
case COMPLEX_CST:
|
case COMPLEX_CST:
|
return imagpart_p ? TREE_IMAGPART (t) : TREE_REALPART (t);
|
return imagpart_p ? TREE_IMAGPART (t) : TREE_REALPART (t);
|
|
|
case COMPLEX_EXPR:
|
case COMPLEX_EXPR:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
|
|
case VAR_DECL:
|
case VAR_DECL:
|
case RESULT_DECL:
|
case RESULT_DECL:
|
case PARM_DECL:
|
case PARM_DECL:
|
case INDIRECT_REF:
|
case INDIRECT_REF:
|
case COMPONENT_REF:
|
case COMPONENT_REF:
|
case ARRAY_REF:
|
case ARRAY_REF:
|
case VIEW_CONVERT_EXPR:
|
case VIEW_CONVERT_EXPR:
|
{
|
{
|
tree inner_type = TREE_TYPE (TREE_TYPE (t));
|
tree inner_type = TREE_TYPE (TREE_TYPE (t));
|
|
|
t = build1 ((imagpart_p ? IMAGPART_EXPR : REALPART_EXPR),
|
t = build1 ((imagpart_p ? IMAGPART_EXPR : REALPART_EXPR),
|
inner_type, unshare_expr (t));
|
inner_type, unshare_expr (t));
|
|
|
if (gimple_p)
|
if (gimple_p)
|
t = force_gimple_operand_gsi (gsi, t, true, NULL, true,
|
t = force_gimple_operand_gsi (gsi, t, true, NULL, true,
|
GSI_SAME_STMT);
|
GSI_SAME_STMT);
|
|
|
return t;
|
return t;
|
}
|
}
|
|
|
case SSA_NAME:
|
case SSA_NAME:
|
return get_component_ssa_name (t, imagpart_p);
|
return get_component_ssa_name (t, imagpart_p);
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
}
|
}
|
|
|
/* Update the complex components of the ssa name on the lhs of STMT. */
|
/* Update the complex components of the ssa name on the lhs of STMT. */
|
|
|
static void
|
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 i)
|
{
|
{
|
tree lhs;
|
tree lhs;
|
gimple_seq list;
|
gimple_seq list;
|
|
|
lhs = gimple_get_lhs (stmt);
|
lhs = gimple_get_lhs (stmt);
|
|
|
list = set_component_ssa_name (lhs, false, r);
|
list = set_component_ssa_name (lhs, false, r);
|
if (list)
|
if (list)
|
gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING);
|
gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING);
|
|
|
list = set_component_ssa_name (lhs, true, i);
|
list = set_component_ssa_name (lhs, true, i);
|
if (list)
|
if (list)
|
gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING);
|
gsi_insert_seq_after (gsi, list, GSI_CONTINUE_LINKING);
|
}
|
}
|
|
|
static void
|
static void
|
update_complex_components_on_edge (edge e, tree lhs, tree r, tree i)
|
update_complex_components_on_edge (edge e, tree lhs, tree r, tree i)
|
{
|
{
|
gimple_seq list;
|
gimple_seq list;
|
|
|
list = set_component_ssa_name (lhs, false, r);
|
list = set_component_ssa_name (lhs, false, r);
|
if (list)
|
if (list)
|
gsi_insert_seq_on_edge (e, list);
|
gsi_insert_seq_on_edge (e, list);
|
|
|
list = set_component_ssa_name (lhs, true, i);
|
list = set_component_ssa_name (lhs, true, i);
|
if (list)
|
if (list)
|
gsi_insert_seq_on_edge (e, list);
|
gsi_insert_seq_on_edge (e, list);
|
}
|
}
|
|
|
|
|
/* Update an assignment to a complex variable in place. */
|
/* Update an assignment to a complex variable in place. */
|
|
|
static void
|
static void
|
update_complex_assignment (gimple_stmt_iterator *gsi, tree r, tree i)
|
update_complex_assignment (gimple_stmt_iterator *gsi, tree r, tree i)
|
{
|
{
|
gimple_stmt_iterator orig_si = *gsi;
|
gimple_stmt_iterator orig_si = *gsi;
|
|
|
if (gimple_in_ssa_p (cfun))
|
if (gimple_in_ssa_p (cfun))
|
update_complex_components (gsi, gsi_stmt (*gsi), r, i);
|
update_complex_components (gsi, gsi_stmt (*gsi), r, i);
|
|
|
gimple_assign_set_rhs_with_ops (&orig_si, COMPLEX_EXPR, r, i);
|
gimple_assign_set_rhs_with_ops (&orig_si, COMPLEX_EXPR, r, i);
|
update_stmt (gsi_stmt (orig_si));
|
update_stmt (gsi_stmt (orig_si));
|
}
|
}
|
|
|
|
|
/* Generate code at the entry point of the function to initialize the
|
/* Generate code at the entry point of the function to initialize the
|
component variables for a complex parameter. */
|
component variables for a complex parameter. */
|
|
|
static void
|
static void
|
update_parameter_components (void)
|
update_parameter_components (void)
|
{
|
{
|
edge entry_edge = single_succ_edge (ENTRY_BLOCK_PTR);
|
edge entry_edge = single_succ_edge (ENTRY_BLOCK_PTR);
|
tree parm;
|
tree parm;
|
|
|
for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = TREE_CHAIN (parm))
|
for (parm = DECL_ARGUMENTS (cfun->decl); parm ; parm = TREE_CHAIN (parm))
|
{
|
{
|
tree type = TREE_TYPE (parm);
|
tree type = TREE_TYPE (parm);
|
tree ssa_name, r, i;
|
tree ssa_name, r, i;
|
|
|
if (TREE_CODE (type) != COMPLEX_TYPE || !is_gimple_reg (parm))
|
if (TREE_CODE (type) != COMPLEX_TYPE || !is_gimple_reg (parm))
|
continue;
|
continue;
|
|
|
type = TREE_TYPE (type);
|
type = TREE_TYPE (type);
|
ssa_name = gimple_default_def (cfun, parm);
|
ssa_name = gimple_default_def (cfun, parm);
|
if (!ssa_name)
|
if (!ssa_name)
|
continue;
|
continue;
|
|
|
r = build1 (REALPART_EXPR, type, ssa_name);
|
r = build1 (REALPART_EXPR, type, ssa_name);
|
i = build1 (IMAGPART_EXPR, type, ssa_name);
|
i = build1 (IMAGPART_EXPR, type, ssa_name);
|
update_complex_components_on_edge (entry_edge, ssa_name, r, i);
|
update_complex_components_on_edge (entry_edge, ssa_name, r, i);
|
}
|
}
|
}
|
}
|
|
|
/* Generate code to set the component variables of a complex variable
|
/* Generate code to set the component variables of a complex variable
|
to match the PHI statements in block BB. */
|
to match the PHI statements in block BB. */
|
|
|
static void
|
static void
|
update_phi_components (basic_block bb)
|
update_phi_components (basic_block bb)
|
{
|
{
|
gimple_stmt_iterator gsi;
|
gimple_stmt_iterator gsi;
|
|
|
for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
|
for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
|
{
|
{
|
gimple phi = gsi_stmt (gsi);
|
gimple phi = gsi_stmt (gsi);
|
|
|
if (is_complex_reg (gimple_phi_result (phi)))
|
if (is_complex_reg (gimple_phi_result (phi)))
|
{
|
{
|
tree lr, li;
|
tree lr, li;
|
gimple pr = NULL, pi = NULL;
|
gimple pr = NULL, pi = NULL;
|
unsigned int i, n;
|
unsigned int i, n;
|
|
|
lr = get_component_ssa_name (gimple_phi_result (phi), false);
|
lr = get_component_ssa_name (gimple_phi_result (phi), false);
|
if (TREE_CODE (lr) == SSA_NAME)
|
if (TREE_CODE (lr) == SSA_NAME)
|
{
|
{
|
pr = create_phi_node (lr, bb);
|
pr = create_phi_node (lr, bb);
|
SSA_NAME_DEF_STMT (lr) = pr;
|
SSA_NAME_DEF_STMT (lr) = pr;
|
}
|
}
|
|
|
li = get_component_ssa_name (gimple_phi_result (phi), true);
|
li = get_component_ssa_name (gimple_phi_result (phi), true);
|
if (TREE_CODE (li) == SSA_NAME)
|
if (TREE_CODE (li) == SSA_NAME)
|
{
|
{
|
pi = create_phi_node (li, bb);
|
pi = create_phi_node (li, bb);
|
SSA_NAME_DEF_STMT (li) = pi;
|
SSA_NAME_DEF_STMT (li) = pi;
|
}
|
}
|
|
|
for (i = 0, n = gimple_phi_num_args (phi); i < n; ++i)
|
for (i = 0, n = gimple_phi_num_args (phi); i < n; ++i)
|
{
|
{
|
tree comp, arg = gimple_phi_arg_def (phi, i);
|
tree comp, arg = gimple_phi_arg_def (phi, i);
|
if (pr)
|
if (pr)
|
{
|
{
|
comp = extract_component (NULL, arg, false, false);
|
comp = extract_component (NULL, arg, false, false);
|
SET_PHI_ARG_DEF (pr, i, comp);
|
SET_PHI_ARG_DEF (pr, i, comp);
|
}
|
}
|
if (pi)
|
if (pi)
|
{
|
{
|
comp = extract_component (NULL, arg, true, false);
|
comp = extract_component (NULL, arg, true, false);
|
SET_PHI_ARG_DEF (pi, i, comp);
|
SET_PHI_ARG_DEF (pi, i, comp);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Expand a complex move to scalars. */
|
/* Expand a complex move to scalars. */
|
|
|
static void
|
static void
|
expand_complex_move (gimple_stmt_iterator *gsi, tree type)
|
expand_complex_move (gimple_stmt_iterator *gsi, tree type)
|
{
|
{
|
tree inner_type = TREE_TYPE (type);
|
tree inner_type = TREE_TYPE (type);
|
tree r, i, lhs, rhs;
|
tree r, i, lhs, rhs;
|
gimple stmt = gsi_stmt (*gsi);
|
gimple stmt = gsi_stmt (*gsi);
|
|
|
if (is_gimple_assign (stmt))
|
if (is_gimple_assign (stmt))
|
{
|
{
|
lhs = gimple_assign_lhs (stmt);
|
lhs = gimple_assign_lhs (stmt);
|
if (gimple_num_ops (stmt) == 2)
|
if (gimple_num_ops (stmt) == 2)
|
rhs = gimple_assign_rhs1 (stmt);
|
rhs = gimple_assign_rhs1 (stmt);
|
else
|
else
|
rhs = NULL_TREE;
|
rhs = NULL_TREE;
|
}
|
}
|
else if (is_gimple_call (stmt))
|
else if (is_gimple_call (stmt))
|
{
|
{
|
lhs = gimple_call_lhs (stmt);
|
lhs = gimple_call_lhs (stmt);
|
rhs = NULL_TREE;
|
rhs = NULL_TREE;
|
}
|
}
|
else
|
else
|
gcc_unreachable ();
|
gcc_unreachable ();
|
|
|
if (TREE_CODE (lhs) == SSA_NAME)
|
if (TREE_CODE (lhs) == SSA_NAME)
|
{
|
{
|
if (is_ctrl_altering_stmt (stmt))
|
if (is_ctrl_altering_stmt (stmt))
|
{
|
{
|
edge_iterator ei;
|
edge_iterator ei;
|
edge e;
|
edge e;
|
|
|
/* The value is not assigned on the exception edges, so we need not
|
/* The value is not assigned on the exception edges, so we need not
|
concern ourselves there. We do need to update on the fallthru
|
concern ourselves there. We do need to update on the fallthru
|
edge. Find it. */
|
edge. Find it. */
|
FOR_EACH_EDGE (e, ei, gsi_bb (*gsi)->succs)
|
FOR_EACH_EDGE (e, ei, gsi_bb (*gsi)->succs)
|
if (e->flags & EDGE_FALLTHRU)
|
if (e->flags & EDGE_FALLTHRU)
|
goto found_fallthru;
|
goto found_fallthru;
|
gcc_unreachable ();
|
gcc_unreachable ();
|
found_fallthru:
|
found_fallthru:
|
|
|
r = build1 (REALPART_EXPR, inner_type, lhs);
|
r = build1 (REALPART_EXPR, inner_type, lhs);
|
i = build1 (IMAGPART_EXPR, inner_type, lhs);
|
i = build1 (IMAGPART_EXPR, inner_type, lhs);
|
update_complex_components_on_edge (e, lhs, r, i);
|
update_complex_components_on_edge (e, lhs, r, i);
|
}
|
}
|
else if (is_gimple_call (stmt)
|
else if (is_gimple_call (stmt)
|
|| gimple_has_side_effects (stmt)
|
|| gimple_has_side_effects (stmt)
|
|| gimple_assign_rhs_code (stmt) == PAREN_EXPR)
|
|| gimple_assign_rhs_code (stmt) == PAREN_EXPR)
|
{
|
{
|
r = build1 (REALPART_EXPR, inner_type, lhs);
|
r = build1 (REALPART_EXPR, inner_type, lhs);
|
i = build1 (IMAGPART_EXPR, inner_type, lhs);
|
i = build1 (IMAGPART_EXPR, inner_type, lhs);
|
update_complex_components (gsi, stmt, r, i);
|
update_complex_components (gsi, stmt, r, i);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (gimple_assign_rhs_code (stmt) != COMPLEX_EXPR)
|
if (gimple_assign_rhs_code (stmt) != COMPLEX_EXPR)
|
{
|
{
|
r = extract_component (gsi, rhs, 0, true);
|
r = extract_component (gsi, rhs, 0, true);
|
i = extract_component (gsi, rhs, 1, true);
|
i = extract_component (gsi, rhs, 1, true);
|
}
|
}
|
else
|
else
|
{
|
{
|
r = gimple_assign_rhs1 (stmt);
|
r = gimple_assign_rhs1 (stmt);
|
i = gimple_assign_rhs2 (stmt);
|
i = gimple_assign_rhs2 (stmt);
|
}
|
}
|
update_complex_assignment (gsi, r, i);
|
update_complex_assignment (gsi, r, i);
|
}
|
}
|
}
|
}
|
else if (rhs && TREE_CODE (rhs) == SSA_NAME && !TREE_SIDE_EFFECTS (lhs))
|
else if (rhs && TREE_CODE (rhs) == SSA_NAME && !TREE_SIDE_EFFECTS (lhs))
|
{
|
{
|
tree x;
|
tree x;
|
gimple t;
|
gimple t;
|
|
|
r = extract_component (gsi, rhs, 0, false);
|
r = extract_component (gsi, rhs, 0, false);
|
i = extract_component (gsi, rhs, 1, false);
|
i = extract_component (gsi, rhs, 1, false);
|
|
|
x = build1 (REALPART_EXPR, inner_type, unshare_expr (lhs));
|
x = build1 (REALPART_EXPR, inner_type, unshare_expr (lhs));
|
t = gimple_build_assign (x, r);
|
t = gimple_build_assign (x, r);
|
gsi_insert_before (gsi, t, GSI_SAME_STMT);
|
gsi_insert_before (gsi, t, GSI_SAME_STMT);
|
|
|
if (stmt == gsi_stmt (*gsi))
|
if (stmt == gsi_stmt (*gsi))
|
{
|
{
|
x = build1 (IMAGPART_EXPR, inner_type, unshare_expr (lhs));
|
x = build1 (IMAGPART_EXPR, inner_type, unshare_expr (lhs));
|
gimple_assign_set_lhs (stmt, x);
|
gimple_assign_set_lhs (stmt, x);
|
gimple_assign_set_rhs1 (stmt, i);
|
gimple_assign_set_rhs1 (stmt, i);
|
}
|
}
|
else
|
else
|
{
|
{
|
x = build1 (IMAGPART_EXPR, inner_type, unshare_expr (lhs));
|
x = build1 (IMAGPART_EXPR, inner_type, unshare_expr (lhs));
|
t = gimple_build_assign (x, i);
|
t = gimple_build_assign (x, i);
|
gsi_insert_before (gsi, t, GSI_SAME_STMT);
|
gsi_insert_before (gsi, t, GSI_SAME_STMT);
|
|
|
stmt = gsi_stmt (*gsi);
|
stmt = gsi_stmt (*gsi);
|
gcc_assert (gimple_code (stmt) == GIMPLE_RETURN);
|
gcc_assert (gimple_code (stmt) == GIMPLE_RETURN);
|
gimple_return_set_retval (stmt, lhs);
|
gimple_return_set_retval (stmt, lhs);
|
}
|
}
|
|
|
update_stmt (stmt);
|
update_stmt (stmt);
|
}
|
}
|
}
|
}
|
|
|
/* Expand complex addition to scalars:
|
/* Expand complex addition to scalars:
|
a + b = (ar + br) + i(ai + bi)
|
a + b = (ar + br) + i(ai + bi)
|
a - b = (ar - br) + i(ai + bi)
|
a - b = (ar - br) + i(ai + bi)
|
*/
|
*/
|
|
|
static void
|
static void
|
expand_complex_addition (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_addition (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai, tree br, tree bi,
|
tree ar, tree ai, tree br, tree bi,
|
enum tree_code code,
|
enum tree_code code,
|
complex_lattice_t al, complex_lattice_t bl)
|
complex_lattice_t al, complex_lattice_t bl)
|
{
|
{
|
tree rr, ri;
|
tree rr, ri;
|
|
|
switch (PAIR (al, bl))
|
switch (PAIR (al, bl))
|
{
|
{
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = ai;
|
ri = ai;
|
break;
|
break;
|
|
|
case PAIR (ONLY_REAL, ONLY_IMAG):
|
case PAIR (ONLY_REAL, ONLY_IMAG):
|
rr = ar;
|
rr = ar;
|
if (code == MINUS_EXPR)
|
if (code == MINUS_EXPR)
|
ri = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ai, bi);
|
else
|
else
|
ri = bi;
|
ri = bi;
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
if (code == MINUS_EXPR)
|
if (code == MINUS_EXPR)
|
rr = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ar, br);
|
else
|
else
|
rr = br;
|
rr = br;
|
ri = ai;
|
ri = ai;
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
rr = ar;
|
rr = ar;
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_REAL):
|
case PAIR (VARYING, ONLY_REAL):
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = ai;
|
ri = ai;
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_IMAG):
|
case PAIR (VARYING, ONLY_IMAG):
|
rr = ar;
|
rr = ar;
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
break;
|
break;
|
|
|
case PAIR (ONLY_REAL, VARYING):
|
case PAIR (ONLY_REAL, VARYING):
|
if (code == MINUS_EXPR)
|
if (code == MINUS_EXPR)
|
goto general;
|
goto general;
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = bi;
|
ri = bi;
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, VARYING):
|
case PAIR (ONLY_IMAG, VARYING):
|
if (code == MINUS_EXPR)
|
if (code == MINUS_EXPR)
|
goto general;
|
goto general;
|
rr = br;
|
rr = br;
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
break;
|
break;
|
|
|
case PAIR (VARYING, VARYING):
|
case PAIR (VARYING, VARYING):
|
general:
|
general:
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Expand a complex multiplication or division to a libcall to the c99
|
/* Expand a complex multiplication or division to a libcall to the c99
|
compliant routines. */
|
compliant routines. */
|
|
|
static void
|
static void
|
expand_complex_libcall (gimple_stmt_iterator *gsi, tree ar, tree ai,
|
expand_complex_libcall (gimple_stmt_iterator *gsi, tree ar, tree ai,
|
tree br, tree bi, enum tree_code code)
|
tree br, tree bi, enum tree_code code)
|
{
|
{
|
enum machine_mode mode;
|
enum machine_mode mode;
|
enum built_in_function bcode;
|
enum built_in_function bcode;
|
tree fn, type, lhs;
|
tree fn, type, lhs;
|
gimple old_stmt, stmt;
|
gimple old_stmt, stmt;
|
|
|
old_stmt = gsi_stmt (*gsi);
|
old_stmt = gsi_stmt (*gsi);
|
lhs = gimple_assign_lhs (old_stmt);
|
lhs = gimple_assign_lhs (old_stmt);
|
type = TREE_TYPE (lhs);
|
type = TREE_TYPE (lhs);
|
|
|
mode = TYPE_MODE (type);
|
mode = TYPE_MODE (type);
|
gcc_assert (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT);
|
gcc_assert (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT);
|
|
|
if (code == MULT_EXPR)
|
if (code == MULT_EXPR)
|
bcode = ((enum built_in_function)
|
bcode = ((enum built_in_function)
|
(BUILT_IN_COMPLEX_MUL_MIN + mode - MIN_MODE_COMPLEX_FLOAT));
|
(BUILT_IN_COMPLEX_MUL_MIN + mode - MIN_MODE_COMPLEX_FLOAT));
|
else if (code == RDIV_EXPR)
|
else if (code == RDIV_EXPR)
|
bcode = ((enum built_in_function)
|
bcode = ((enum built_in_function)
|
(BUILT_IN_COMPLEX_DIV_MIN + mode - MIN_MODE_COMPLEX_FLOAT));
|
(BUILT_IN_COMPLEX_DIV_MIN + mode - MIN_MODE_COMPLEX_FLOAT));
|
else
|
else
|
gcc_unreachable ();
|
gcc_unreachable ();
|
fn = built_in_decls[bcode];
|
fn = built_in_decls[bcode];
|
|
|
stmt = gimple_build_call (fn, 4, ar, ai, br, bi);
|
stmt = gimple_build_call (fn, 4, ar, ai, br, bi);
|
gimple_call_set_lhs (stmt, lhs);
|
gimple_call_set_lhs (stmt, lhs);
|
update_stmt (stmt);
|
update_stmt (stmt);
|
gsi_replace (gsi, stmt, false);
|
gsi_replace (gsi, stmt, false);
|
|
|
if (maybe_clean_or_replace_eh_stmt (old_stmt, stmt))
|
if (maybe_clean_or_replace_eh_stmt (old_stmt, stmt))
|
gimple_purge_dead_eh_edges (gsi_bb (*gsi));
|
gimple_purge_dead_eh_edges (gsi_bb (*gsi));
|
|
|
if (gimple_in_ssa_p (cfun))
|
if (gimple_in_ssa_p (cfun))
|
{
|
{
|
type = TREE_TYPE (type);
|
type = TREE_TYPE (type);
|
update_complex_components (gsi, stmt,
|
update_complex_components (gsi, stmt,
|
build1 (REALPART_EXPR, type, lhs),
|
build1 (REALPART_EXPR, type, lhs),
|
build1 (IMAGPART_EXPR, type, lhs));
|
build1 (IMAGPART_EXPR, type, lhs));
|
SSA_NAME_DEF_STMT (lhs) = stmt;
|
SSA_NAME_DEF_STMT (lhs) = stmt;
|
}
|
}
|
}
|
}
|
|
|
/* Expand complex multiplication to scalars:
|
/* Expand complex multiplication to scalars:
|
a * b = (ar*br - ai*bi) + i(ar*bi + br*ai)
|
a * b = (ar*br - ai*bi) + i(ar*bi + br*ai)
|
*/
|
*/
|
|
|
static void
|
static void
|
expand_complex_multiplication (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_multiplication (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai, tree br, tree bi,
|
tree ar, tree ai, tree br, tree bi,
|
complex_lattice_t al, complex_lattice_t bl)
|
complex_lattice_t al, complex_lattice_t bl)
|
{
|
{
|
tree rr, ri;
|
tree rr, ri;
|
|
|
if (al < bl)
|
if (al < bl)
|
{
|
{
|
complex_lattice_t tl;
|
complex_lattice_t tl;
|
rr = ar, ar = br, br = rr;
|
rr = ar, ar = br, br = rr;
|
ri = ai, ai = bi, bi = ri;
|
ri = ai, ai = bi, bi = ri;
|
tl = al, al = bl, bl = tl;
|
tl = al, al = bl, bl = tl;
|
}
|
}
|
|
|
switch (PAIR (al, bl))
|
switch (PAIR (al, bl))
|
{
|
{
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
ri = ai;
|
ri = ai;
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
rr = ar;
|
rr = ar;
|
if (TREE_CODE (ai) == REAL_CST
|
if (TREE_CODE (ai) == REAL_CST
|
&& REAL_VALUES_IDENTICAL (TREE_REAL_CST (ai), dconst1))
|
&& REAL_VALUES_IDENTICAL (TREE_REAL_CST (ai), dconst1))
|
ri = br;
|
ri = br;
|
else
|
else
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, rr);
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, rr);
|
ri = ar;
|
ri = ar;
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_REAL):
|
case PAIR (VARYING, ONLY_REAL):
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_IMAG):
|
case PAIR (VARYING, ONLY_IMAG):
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
rr = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, rr);
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, rr);
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
ri = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
break;
|
break;
|
|
|
case PAIR (VARYING, VARYING):
|
case PAIR (VARYING, VARYING):
|
if (flag_complex_method == 2 && SCALAR_FLOAT_TYPE_P (inner_type))
|
if (flag_complex_method == 2 && SCALAR_FLOAT_TYPE_P (inner_type))
|
{
|
{
|
expand_complex_libcall (gsi, ar, ai, br, bi, MULT_EXPR);
|
expand_complex_libcall (gsi, ar, ai, br, bi, MULT_EXPR);
|
return;
|
return;
|
}
|
}
|
else
|
else
|
{
|
{
|
tree t1, t2, t3, t4;
|
tree t1, t2, t3, t4;
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
t3 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
t3 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
|
|
/* Avoid expanding redundant multiplication for the common
|
/* Avoid expanding redundant multiplication for the common
|
case of squaring a complex number. */
|
case of squaring a complex number. */
|
if (ar == br && ai == bi)
|
if (ar == br && ai == bi)
|
t4 = t3;
|
t4 = t3;
|
else
|
else
|
t4 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
t4 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
|
|
rr = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, t2);
|
rr = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, t2);
|
ri = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t3, t4);
|
ri = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t3, t4);
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Keep this algorithm in sync with fold-const.c:const_binop().
|
/* Keep this algorithm in sync with fold-const.c:const_binop().
|
|
|
Expand complex division to scalars, straightforward algorithm.
|
Expand complex division to scalars, straightforward algorithm.
|
a / b = ((ar*br + ai*bi)/t) + i((ai*br - ar*bi)/t)
|
a / b = ((ar*br + ai*bi)/t) + i((ai*br - ar*bi)/t)
|
t = br*br + bi*bi
|
t = br*br + bi*bi
|
*/
|
*/
|
|
|
static void
|
static void
|
expand_complex_div_straight (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_div_straight (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai, tree br, tree bi,
|
tree ar, tree ai, tree br, tree bi,
|
enum tree_code code)
|
enum tree_code code)
|
{
|
{
|
tree rr, ri, div, t1, t2, t3;
|
tree rr, ri, div, t1, t2, t3;
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, br, br);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, br, br);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, bi, bi);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, bi, bi);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, t2);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, t2);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, br);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, bi);
|
t3 = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, t2);
|
t3 = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, t2);
|
rr = gimplify_build2 (gsi, code, inner_type, t3, div);
|
rr = gimplify_build2 (gsi, code, inner_type, t3, div);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, br);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
t2 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, bi);
|
t3 = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, t2);
|
t3 = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, t2);
|
ri = gimplify_build2 (gsi, code, inner_type, t3, div);
|
ri = gimplify_build2 (gsi, code, inner_type, t3, div);
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Keep this algorithm in sync with fold-const.c:const_binop().
|
/* Keep this algorithm in sync with fold-const.c:const_binop().
|
|
|
Expand complex division to scalars, modified algorithm to minimize
|
Expand complex division to scalars, modified algorithm to minimize
|
overflow with wide input ranges. */
|
overflow with wide input ranges. */
|
|
|
static void
|
static void
|
expand_complex_div_wide (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_div_wide (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai, tree br, tree bi,
|
tree ar, tree ai, tree br, tree bi,
|
enum tree_code code)
|
enum tree_code code)
|
{
|
{
|
tree rr, ri, ratio, div, t1, t2, tr, ti, compare;
|
tree rr, ri, ratio, div, t1, t2, tr, ti, compare;
|
basic_block bb_cond, bb_true, bb_false, bb_join;
|
basic_block bb_cond, bb_true, bb_false, bb_join;
|
gimple stmt;
|
gimple stmt;
|
|
|
/* Examine |br| < |bi|, and branch. */
|
/* Examine |br| < |bi|, and branch. */
|
t1 = gimplify_build1 (gsi, ABS_EXPR, inner_type, br);
|
t1 = gimplify_build1 (gsi, ABS_EXPR, inner_type, br);
|
t2 = gimplify_build1 (gsi, ABS_EXPR, inner_type, bi);
|
t2 = gimplify_build1 (gsi, ABS_EXPR, inner_type, bi);
|
compare = fold_build2_loc (gimple_location (gsi_stmt (*gsi)),
|
compare = fold_build2_loc (gimple_location (gsi_stmt (*gsi)),
|
LT_EXPR, boolean_type_node, t1, t2);
|
LT_EXPR, boolean_type_node, t1, t2);
|
STRIP_NOPS (compare);
|
STRIP_NOPS (compare);
|
|
|
bb_cond = bb_true = bb_false = bb_join = NULL;
|
bb_cond = bb_true = bb_false = bb_join = NULL;
|
rr = ri = tr = ti = NULL;
|
rr = ri = tr = ti = NULL;
|
if (TREE_CODE (compare) != INTEGER_CST)
|
if (TREE_CODE (compare) != INTEGER_CST)
|
{
|
{
|
edge e;
|
edge e;
|
gimple stmt;
|
gimple stmt;
|
tree cond, tmp;
|
tree cond, tmp;
|
|
|
tmp = create_tmp_var (boolean_type_node, NULL);
|
tmp = create_tmp_var (boolean_type_node, NULL);
|
stmt = gimple_build_assign (tmp, compare);
|
stmt = gimple_build_assign (tmp, compare);
|
if (gimple_in_ssa_p (cfun))
|
if (gimple_in_ssa_p (cfun))
|
{
|
{
|
tmp = make_ssa_name (tmp, stmt);
|
tmp = make_ssa_name (tmp, stmt);
|
gimple_assign_set_lhs (stmt, tmp);
|
gimple_assign_set_lhs (stmt, tmp);
|
}
|
}
|
|
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
|
|
cond = fold_build2_loc (gimple_location (stmt),
|
cond = fold_build2_loc (gimple_location (stmt),
|
EQ_EXPR, boolean_type_node, tmp, boolean_true_node);
|
EQ_EXPR, boolean_type_node, tmp, boolean_true_node);
|
stmt = gimple_build_cond_from_tree (cond, NULL_TREE, NULL_TREE);
|
stmt = gimple_build_cond_from_tree (cond, NULL_TREE, NULL_TREE);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
|
|
/* Split the original block, and create the TRUE and FALSE blocks. */
|
/* Split the original block, and create the TRUE and FALSE blocks. */
|
e = split_block (gsi_bb (*gsi), stmt);
|
e = split_block (gsi_bb (*gsi), stmt);
|
bb_cond = e->src;
|
bb_cond = e->src;
|
bb_join = e->dest;
|
bb_join = e->dest;
|
bb_true = create_empty_bb (bb_cond);
|
bb_true = create_empty_bb (bb_cond);
|
bb_false = create_empty_bb (bb_true);
|
bb_false = create_empty_bb (bb_true);
|
|
|
/* Wire the blocks together. */
|
/* Wire the blocks together. */
|
e->flags = EDGE_TRUE_VALUE;
|
e->flags = EDGE_TRUE_VALUE;
|
redirect_edge_succ (e, bb_true);
|
redirect_edge_succ (e, bb_true);
|
make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE);
|
make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE);
|
make_edge (bb_true, bb_join, EDGE_FALLTHRU);
|
make_edge (bb_true, bb_join, EDGE_FALLTHRU);
|
make_edge (bb_false, bb_join, EDGE_FALLTHRU);
|
make_edge (bb_false, bb_join, EDGE_FALLTHRU);
|
|
|
/* Update dominance info. Note that bb_join's data was
|
/* Update dominance info. Note that bb_join's data was
|
updated by split_block. */
|
updated by split_block. */
|
if (dom_info_available_p (CDI_DOMINATORS))
|
if (dom_info_available_p (CDI_DOMINATORS))
|
{
|
{
|
set_immediate_dominator (CDI_DOMINATORS, bb_true, bb_cond);
|
set_immediate_dominator (CDI_DOMINATORS, bb_true, bb_cond);
|
set_immediate_dominator (CDI_DOMINATORS, bb_false, bb_cond);
|
set_immediate_dominator (CDI_DOMINATORS, bb_false, bb_cond);
|
}
|
}
|
|
|
rr = make_rename_temp (inner_type, NULL);
|
rr = make_rename_temp (inner_type, NULL);
|
ri = make_rename_temp (inner_type, NULL);
|
ri = make_rename_temp (inner_type, NULL);
|
}
|
}
|
|
|
/* In the TRUE branch, we compute
|
/* In the TRUE branch, we compute
|
ratio = br/bi;
|
ratio = br/bi;
|
div = (br * ratio) + bi;
|
div = (br * ratio) + bi;
|
tr = (ar * ratio) + ai;
|
tr = (ar * ratio) + ai;
|
ti = (ai * ratio) - ar;
|
ti = (ai * ratio) - ar;
|
tr = tr / div;
|
tr = tr / div;
|
ti = ti / div; */
|
ti = ti / div; */
|
if (bb_true || integer_nonzerop (compare))
|
if (bb_true || integer_nonzerop (compare))
|
{
|
{
|
if (bb_true)
|
if (bb_true)
|
{
|
{
|
*gsi = gsi_last_bb (bb_true);
|
*gsi = gsi_last_bb (bb_true);
|
gsi_insert_after (gsi, gimple_build_nop (), GSI_NEW_STMT);
|
gsi_insert_after (gsi, gimple_build_nop (), GSI_NEW_STMT);
|
}
|
}
|
|
|
ratio = gimplify_build2 (gsi, code, inner_type, br, bi);
|
ratio = gimplify_build2 (gsi, code, inner_type, br, bi);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, br, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, br, ratio);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, bi);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, bi);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, ratio);
|
tr = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, ai);
|
tr = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, ai);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, ratio);
|
ti = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, ar);
|
ti = gimplify_build2 (gsi, MINUS_EXPR, inner_type, t1, ar);
|
|
|
tr = gimplify_build2 (gsi, code, inner_type, tr, div);
|
tr = gimplify_build2 (gsi, code, inner_type, tr, div);
|
ti = gimplify_build2 (gsi, code, inner_type, ti, div);
|
ti = gimplify_build2 (gsi, code, inner_type, ti, div);
|
|
|
if (bb_true)
|
if (bb_true)
|
{
|
{
|
stmt = gimple_build_assign (rr, tr);
|
stmt = gimple_build_assign (rr, tr);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
stmt = gimple_build_assign (ri, ti);
|
stmt = gimple_build_assign (ri, ti);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_remove (gsi, true);
|
gsi_remove (gsi, true);
|
}
|
}
|
}
|
}
|
|
|
/* In the FALSE branch, we compute
|
/* In the FALSE branch, we compute
|
ratio = d/c;
|
ratio = d/c;
|
divisor = (d * ratio) + c;
|
divisor = (d * ratio) + c;
|
tr = (b * ratio) + a;
|
tr = (b * ratio) + a;
|
ti = b - (a * ratio);
|
ti = b - (a * ratio);
|
tr = tr / div;
|
tr = tr / div;
|
ti = ti / div; */
|
ti = ti / div; */
|
if (bb_false || integer_zerop (compare))
|
if (bb_false || integer_zerop (compare))
|
{
|
{
|
if (bb_false)
|
if (bb_false)
|
{
|
{
|
*gsi = gsi_last_bb (bb_false);
|
*gsi = gsi_last_bb (bb_false);
|
gsi_insert_after (gsi, gimple_build_nop (), GSI_NEW_STMT);
|
gsi_insert_after (gsi, gimple_build_nop (), GSI_NEW_STMT);
|
}
|
}
|
|
|
ratio = gimplify_build2 (gsi, code, inner_type, bi, br);
|
ratio = gimplify_build2 (gsi, code, inner_type, bi, br);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, bi, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, bi, ratio);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, br);
|
div = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, br);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ai, ratio);
|
tr = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, ar);
|
tr = gimplify_build2 (gsi, PLUS_EXPR, inner_type, t1, ar);
|
|
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, ratio);
|
t1 = gimplify_build2 (gsi, MULT_EXPR, inner_type, ar, ratio);
|
ti = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ai, t1);
|
ti = gimplify_build2 (gsi, MINUS_EXPR, inner_type, ai, t1);
|
|
|
tr = gimplify_build2 (gsi, code, inner_type, tr, div);
|
tr = gimplify_build2 (gsi, code, inner_type, tr, div);
|
ti = gimplify_build2 (gsi, code, inner_type, ti, div);
|
ti = gimplify_build2 (gsi, code, inner_type, ti, div);
|
|
|
if (bb_false)
|
if (bb_false)
|
{
|
{
|
stmt = gimple_build_assign (rr, tr);
|
stmt = gimple_build_assign (rr, tr);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
stmt = gimple_build_assign (ri, ti);
|
stmt = gimple_build_assign (ri, ti);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
|
gsi_remove (gsi, true);
|
gsi_remove (gsi, true);
|
}
|
}
|
}
|
}
|
|
|
if (bb_join)
|
if (bb_join)
|
*gsi = gsi_start_bb (bb_join);
|
*gsi = gsi_start_bb (bb_join);
|
else
|
else
|
rr = tr, ri = ti;
|
rr = tr, ri = ti;
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Expand complex division to scalars. */
|
/* Expand complex division to scalars. */
|
|
|
static void
|
static void
|
expand_complex_division (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_division (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai, tree br, tree bi,
|
tree ar, tree ai, tree br, tree bi,
|
enum tree_code code,
|
enum tree_code code,
|
complex_lattice_t al, complex_lattice_t bl)
|
complex_lattice_t al, complex_lattice_t bl)
|
{
|
{
|
tree rr, ri;
|
tree rr, ri;
|
|
|
switch (PAIR (al, bl))
|
switch (PAIR (al, bl))
|
{
|
{
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
case PAIR (ONLY_REAL, ONLY_REAL):
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = ai;
|
ri = ai;
|
break;
|
break;
|
|
|
case PAIR (ONLY_REAL, ONLY_IMAG):
|
case PAIR (ONLY_REAL, ONLY_IMAG):
|
rr = ai;
|
rr = ai;
|
ri = gimplify_build2 (gsi, code, inner_type, ar, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ar, bi);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ri);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ri);
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
case PAIR (ONLY_IMAG, ONLY_REAL):
|
rr = ar;
|
rr = ar;
|
ri = gimplify_build2 (gsi, code, inner_type, ai, br);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, br);
|
break;
|
break;
|
|
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
case PAIR (ONLY_IMAG, ONLY_IMAG):
|
rr = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
rr = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = ar;
|
ri = ar;
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_REAL):
|
case PAIR (VARYING, ONLY_REAL):
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
rr = gimplify_build2 (gsi, code, inner_type, ar, br);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, br);
|
ri = gimplify_build2 (gsi, code, inner_type, ai, br);
|
break;
|
break;
|
|
|
case PAIR (VARYING, ONLY_IMAG):
|
case PAIR (VARYING, ONLY_IMAG):
|
rr = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
rr = gimplify_build2 (gsi, code, inner_type, ai, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ar, bi);
|
ri = gimplify_build2 (gsi, code, inner_type, ar, bi);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ri);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ri);
|
|
|
case PAIR (ONLY_REAL, VARYING):
|
case PAIR (ONLY_REAL, VARYING):
|
case PAIR (ONLY_IMAG, VARYING):
|
case PAIR (ONLY_IMAG, VARYING):
|
case PAIR (VARYING, VARYING):
|
case PAIR (VARYING, VARYING):
|
switch (flag_complex_method)
|
switch (flag_complex_method)
|
{
|
{
|
case 0:
|
case 0:
|
/* straightforward implementation of complex divide acceptable. */
|
/* straightforward implementation of complex divide acceptable. */
|
expand_complex_div_straight (gsi, inner_type, ar, ai, br, bi, code);
|
expand_complex_div_straight (gsi, inner_type, ar, ai, br, bi, code);
|
break;
|
break;
|
|
|
case 2:
|
case 2:
|
if (SCALAR_FLOAT_TYPE_P (inner_type))
|
if (SCALAR_FLOAT_TYPE_P (inner_type))
|
{
|
{
|
expand_complex_libcall (gsi, ar, ai, br, bi, code);
|
expand_complex_libcall (gsi, ar, ai, br, bi, code);
|
break;
|
break;
|
}
|
}
|
/* FALLTHRU */
|
/* FALLTHRU */
|
|
|
case 1:
|
case 1:
|
/* wide ranges of inputs must work for complex divide. */
|
/* wide ranges of inputs must work for complex divide. */
|
expand_complex_div_wide (gsi, inner_type, ar, ai, br, bi, code);
|
expand_complex_div_wide (gsi, inner_type, ar, ai, br, bi, code);
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
return;
|
return;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Expand complex negation to scalars:
|
/* Expand complex negation to scalars:
|
-a = (-ar) + i(-ai)
|
-a = (-ar) + i(-ai)
|
*/
|
*/
|
|
|
static void
|
static void
|
expand_complex_negation (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_negation (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai)
|
tree ar, tree ai)
|
{
|
{
|
tree rr, ri;
|
tree rr, ri;
|
|
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ar);
|
rr = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ar);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ai);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ai);
|
|
|
update_complex_assignment (gsi, rr, ri);
|
update_complex_assignment (gsi, rr, ri);
|
}
|
}
|
|
|
/* Expand complex conjugate to scalars:
|
/* Expand complex conjugate to scalars:
|
~a = (ar) + i(-ai)
|
~a = (ar) + i(-ai)
|
*/
|
*/
|
|
|
static void
|
static void
|
expand_complex_conjugate (gimple_stmt_iterator *gsi, tree inner_type,
|
expand_complex_conjugate (gimple_stmt_iterator *gsi, tree inner_type,
|
tree ar, tree ai)
|
tree ar, tree ai)
|
{
|
{
|
tree ri;
|
tree ri;
|
|
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ai);
|
ri = gimplify_build1 (gsi, NEGATE_EXPR, inner_type, ai);
|
|
|
update_complex_assignment (gsi, ar, ri);
|
update_complex_assignment (gsi, ar, ri);
|
}
|
}
|
|
|
/* Expand complex comparison (EQ or NE only). */
|
/* Expand complex comparison (EQ or NE only). */
|
|
|
static void
|
static void
|
expand_complex_comparison (gimple_stmt_iterator *gsi, tree ar, tree ai,
|
expand_complex_comparison (gimple_stmt_iterator *gsi, tree ar, tree ai,
|
tree br, tree bi, enum tree_code code)
|
tree br, tree bi, enum tree_code code)
|
{
|
{
|
tree cr, ci, cc, type;
|
tree cr, ci, cc, type;
|
gimple stmt;
|
gimple stmt;
|
|
|
cr = gimplify_build2 (gsi, code, boolean_type_node, ar, br);
|
cr = gimplify_build2 (gsi, code, boolean_type_node, ar, br);
|
ci = gimplify_build2 (gsi, code, boolean_type_node, ai, bi);
|
ci = gimplify_build2 (gsi, code, boolean_type_node, ai, bi);
|
cc = gimplify_build2 (gsi,
|
cc = gimplify_build2 (gsi,
|
(code == EQ_EXPR ? TRUTH_AND_EXPR : TRUTH_OR_EXPR),
|
(code == EQ_EXPR ? TRUTH_AND_EXPR : TRUTH_OR_EXPR),
|
boolean_type_node, cr, ci);
|
boolean_type_node, cr, ci);
|
|
|
stmt = gsi_stmt (*gsi);
|
stmt = gsi_stmt (*gsi);
|
|
|
switch (gimple_code (stmt))
|
switch (gimple_code (stmt))
|
{
|
{
|
case GIMPLE_RETURN:
|
case GIMPLE_RETURN:
|
type = TREE_TYPE (gimple_return_retval (stmt));
|
type = TREE_TYPE (gimple_return_retval (stmt));
|
gimple_return_set_retval (stmt, fold_convert (type, cc));
|
gimple_return_set_retval (stmt, fold_convert (type, cc));
|
break;
|
break;
|
|
|
case GIMPLE_ASSIGN:
|
case GIMPLE_ASSIGN:
|
type = TREE_TYPE (gimple_assign_lhs (stmt));
|
type = TREE_TYPE (gimple_assign_lhs (stmt));
|
gimple_assign_set_rhs_from_tree (gsi, fold_convert (type, cc));
|
gimple_assign_set_rhs_from_tree (gsi, fold_convert (type, cc));
|
stmt = gsi_stmt (*gsi);
|
stmt = gsi_stmt (*gsi);
|
break;
|
break;
|
|
|
case GIMPLE_COND:
|
case GIMPLE_COND:
|
gimple_cond_set_code (stmt, EQ_EXPR);
|
gimple_cond_set_code (stmt, EQ_EXPR);
|
gimple_cond_set_lhs (stmt, cc);
|
gimple_cond_set_lhs (stmt, cc);
|
gimple_cond_set_rhs (stmt, boolean_true_node);
|
gimple_cond_set_rhs (stmt, boolean_true_node);
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
|
|
update_stmt (stmt);
|
update_stmt (stmt);
|
}
|
}
|
|
|
|
|
/* Process one statement. If we identify a complex operation, expand it. */
|
/* Process one statement. If we identify a complex operation, expand it. */
|
|
|
static void
|
static void
|
expand_complex_operations_1 (gimple_stmt_iterator *gsi)
|
expand_complex_operations_1 (gimple_stmt_iterator *gsi)
|
{
|
{
|
gimple stmt = gsi_stmt (*gsi);
|
gimple stmt = gsi_stmt (*gsi);
|
tree type, inner_type, lhs;
|
tree type, inner_type, lhs;
|
tree ac, ar, ai, bc, br, bi;
|
tree ac, ar, ai, bc, br, bi;
|
complex_lattice_t al, bl;
|
complex_lattice_t al, bl;
|
enum tree_code code;
|
enum tree_code code;
|
|
|
lhs = gimple_get_lhs (stmt);
|
lhs = gimple_get_lhs (stmt);
|
if (!lhs && gimple_code (stmt) != GIMPLE_COND)
|
if (!lhs && gimple_code (stmt) != GIMPLE_COND)
|
return;
|
return;
|
|
|
type = TREE_TYPE (gimple_op (stmt, 0));
|
type = TREE_TYPE (gimple_op (stmt, 0));
|
code = gimple_expr_code (stmt);
|
code = gimple_expr_code (stmt);
|
|
|
/* Initial filter for operations we handle. */
|
/* Initial filter for operations we handle. */
|
switch (code)
|
switch (code)
|
{
|
{
|
case PLUS_EXPR:
|
case PLUS_EXPR:
|
case MINUS_EXPR:
|
case MINUS_EXPR:
|
case MULT_EXPR:
|
case MULT_EXPR:
|
case TRUNC_DIV_EXPR:
|
case TRUNC_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
case RDIV_EXPR:
|
case RDIV_EXPR:
|
case NEGATE_EXPR:
|
case NEGATE_EXPR:
|
case CONJ_EXPR:
|
case CONJ_EXPR:
|
if (TREE_CODE (type) != COMPLEX_TYPE)
|
if (TREE_CODE (type) != COMPLEX_TYPE)
|
return;
|
return;
|
inner_type = TREE_TYPE (type);
|
inner_type = TREE_TYPE (type);
|
break;
|
break;
|
|
|
case EQ_EXPR:
|
case EQ_EXPR:
|
case NE_EXPR:
|
case NE_EXPR:
|
/* Note, both GIMPLE_ASSIGN and GIMPLE_COND may have an EQ_EXPR
|
/* Note, both GIMPLE_ASSIGN and GIMPLE_COND may have an EQ_EXPR
|
subocde, so we need to access the operands using gimple_op. */
|
subocde, so we need to access the operands using gimple_op. */
|
inner_type = TREE_TYPE (gimple_op (stmt, 1));
|
inner_type = TREE_TYPE (gimple_op (stmt, 1));
|
if (TREE_CODE (inner_type) != COMPLEX_TYPE)
|
if (TREE_CODE (inner_type) != COMPLEX_TYPE)
|
return;
|
return;
|
break;
|
break;
|
|
|
default:
|
default:
|
{
|
{
|
tree rhs;
|
tree rhs;
|
|
|
/* GIMPLE_COND may also fallthru here, but we do not need to
|
/* GIMPLE_COND may also fallthru here, but we do not need to
|
do anything with it. */
|
do anything with it. */
|
if (gimple_code (stmt) == GIMPLE_COND)
|
if (gimple_code (stmt) == GIMPLE_COND)
|
return;
|
return;
|
|
|
if (TREE_CODE (type) == COMPLEX_TYPE)
|
if (TREE_CODE (type) == COMPLEX_TYPE)
|
expand_complex_move (gsi, type);
|
expand_complex_move (gsi, type);
|
else if (is_gimple_assign (stmt)
|
else if (is_gimple_assign (stmt)
|
&& (gimple_assign_rhs_code (stmt) == REALPART_EXPR
|
&& (gimple_assign_rhs_code (stmt) == REALPART_EXPR
|
|| gimple_assign_rhs_code (stmt) == IMAGPART_EXPR)
|
|| gimple_assign_rhs_code (stmt) == IMAGPART_EXPR)
|
&& TREE_CODE (lhs) == SSA_NAME)
|
&& TREE_CODE (lhs) == SSA_NAME)
|
{
|
{
|
rhs = gimple_assign_rhs1 (stmt);
|
rhs = gimple_assign_rhs1 (stmt);
|
rhs = extract_component (gsi, TREE_OPERAND (rhs, 0),
|
rhs = extract_component (gsi, TREE_OPERAND (rhs, 0),
|
gimple_assign_rhs_code (stmt)
|
gimple_assign_rhs_code (stmt)
|
== IMAGPART_EXPR,
|
== IMAGPART_EXPR,
|
false);
|
false);
|
gimple_assign_set_rhs_from_tree (gsi, rhs);
|
gimple_assign_set_rhs_from_tree (gsi, rhs);
|
stmt = gsi_stmt (*gsi);
|
stmt = gsi_stmt (*gsi);
|
update_stmt (stmt);
|
update_stmt (stmt);
|
}
|
}
|
}
|
}
|
return;
|
return;
|
}
|
}
|
|
|
/* Extract the components of the two complex values. Make sure and
|
/* Extract the components of the two complex values. Make sure and
|
handle the common case of the same value used twice specially. */
|
handle the common case of the same value used twice specially. */
|
if (is_gimple_assign (stmt))
|
if (is_gimple_assign (stmt))
|
{
|
{
|
ac = gimple_assign_rhs1 (stmt);
|
ac = gimple_assign_rhs1 (stmt);
|
bc = (gimple_num_ops (stmt) > 2) ? gimple_assign_rhs2 (stmt) : NULL;
|
bc = (gimple_num_ops (stmt) > 2) ? gimple_assign_rhs2 (stmt) : NULL;
|
}
|
}
|
/* GIMPLE_CALL can not get here. */
|
/* GIMPLE_CALL can not get here. */
|
else
|
else
|
{
|
{
|
ac = gimple_cond_lhs (stmt);
|
ac = gimple_cond_lhs (stmt);
|
bc = gimple_cond_rhs (stmt);
|
bc = gimple_cond_rhs (stmt);
|
}
|
}
|
|
|
ar = extract_component (gsi, ac, false, true);
|
ar = extract_component (gsi, ac, false, true);
|
ai = extract_component (gsi, ac, true, true);
|
ai = extract_component (gsi, ac, true, true);
|
|
|
if (ac == bc)
|
if (ac == bc)
|
br = ar, bi = ai;
|
br = ar, bi = ai;
|
else if (bc)
|
else if (bc)
|
{
|
{
|
br = extract_component (gsi, bc, 0, true);
|
br = extract_component (gsi, bc, 0, true);
|
bi = extract_component (gsi, bc, 1, true);
|
bi = extract_component (gsi, bc, 1, true);
|
}
|
}
|
else
|
else
|
br = bi = NULL_TREE;
|
br = bi = NULL_TREE;
|
|
|
if (gimple_in_ssa_p (cfun))
|
if (gimple_in_ssa_p (cfun))
|
{
|
{
|
al = find_lattice_value (ac);
|
al = find_lattice_value (ac);
|
if (al == UNINITIALIZED)
|
if (al == UNINITIALIZED)
|
al = VARYING;
|
al = VARYING;
|
|
|
if (TREE_CODE_CLASS (code) == tcc_unary)
|
if (TREE_CODE_CLASS (code) == tcc_unary)
|
bl = UNINITIALIZED;
|
bl = UNINITIALIZED;
|
else if (ac == bc)
|
else if (ac == bc)
|
bl = al;
|
bl = al;
|
else
|
else
|
{
|
{
|
bl = find_lattice_value (bc);
|
bl = find_lattice_value (bc);
|
if (bl == UNINITIALIZED)
|
if (bl == UNINITIALIZED)
|
bl = VARYING;
|
bl = VARYING;
|
}
|
}
|
}
|
}
|
else
|
else
|
al = bl = VARYING;
|
al = bl = VARYING;
|
|
|
switch (code)
|
switch (code)
|
{
|
{
|
case PLUS_EXPR:
|
case PLUS_EXPR:
|
case MINUS_EXPR:
|
case MINUS_EXPR:
|
expand_complex_addition (gsi, inner_type, ar, ai, br, bi, code, al, bl);
|
expand_complex_addition (gsi, inner_type, ar, ai, br, bi, code, al, bl);
|
break;
|
break;
|
|
|
case MULT_EXPR:
|
case MULT_EXPR:
|
expand_complex_multiplication (gsi, inner_type, ar, ai, br, bi, al, bl);
|
expand_complex_multiplication (gsi, inner_type, ar, ai, br, bi, al, bl);
|
break;
|
break;
|
|
|
case TRUNC_DIV_EXPR:
|
case TRUNC_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case CEIL_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case FLOOR_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
case ROUND_DIV_EXPR:
|
case RDIV_EXPR:
|
case RDIV_EXPR:
|
expand_complex_division (gsi, inner_type, ar, ai, br, bi, code, al, bl);
|
expand_complex_division (gsi, inner_type, ar, ai, br, bi, code, al, bl);
|
break;
|
break;
|
|
|
case NEGATE_EXPR:
|
case NEGATE_EXPR:
|
expand_complex_negation (gsi, inner_type, ar, ai);
|
expand_complex_negation (gsi, inner_type, ar, ai);
|
break;
|
break;
|
|
|
case CONJ_EXPR:
|
case CONJ_EXPR:
|
expand_complex_conjugate (gsi, inner_type, ar, ai);
|
expand_complex_conjugate (gsi, inner_type, ar, ai);
|
break;
|
break;
|
|
|
case EQ_EXPR:
|
case EQ_EXPR:
|
case NE_EXPR:
|
case NE_EXPR:
|
expand_complex_comparison (gsi, ar, ai, br, bi, code);
|
expand_complex_comparison (gsi, ar, ai, br, bi, code);
|
break;
|
break;
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Entry point for complex operation lowering during optimization. */
|
/* Entry point for complex operation lowering during optimization. */
|
|
|
static unsigned int
|
static unsigned int
|
tree_lower_complex (void)
|
tree_lower_complex (void)
|
{
|
{
|
int old_last_basic_block;
|
int old_last_basic_block;
|
gimple_stmt_iterator gsi;
|
gimple_stmt_iterator gsi;
|
basic_block bb;
|
basic_block bb;
|
|
|
if (!init_dont_simulate_again ())
|
if (!init_dont_simulate_again ())
|
return 0;
|
return 0;
|
|
|
complex_lattice_values = VEC_alloc (complex_lattice_t, heap, num_ssa_names);
|
complex_lattice_values = VEC_alloc (complex_lattice_t, heap, num_ssa_names);
|
VEC_safe_grow_cleared (complex_lattice_t, heap,
|
VEC_safe_grow_cleared (complex_lattice_t, heap,
|
complex_lattice_values, num_ssa_names);
|
complex_lattice_values, num_ssa_names);
|
|
|
init_parameter_lattice_values ();
|
init_parameter_lattice_values ();
|
ssa_propagate (complex_visit_stmt, complex_visit_phi);
|
ssa_propagate (complex_visit_stmt, complex_visit_phi);
|
|
|
complex_variable_components = htab_create (10, int_tree_map_hash,
|
complex_variable_components = htab_create (10, int_tree_map_hash,
|
int_tree_map_eq, free);
|
int_tree_map_eq, free);
|
|
|
complex_ssa_name_components = VEC_alloc (tree, heap, 2*num_ssa_names);
|
complex_ssa_name_components = VEC_alloc (tree, heap, 2*num_ssa_names);
|
VEC_safe_grow_cleared (tree, heap, complex_ssa_name_components,
|
VEC_safe_grow_cleared (tree, heap, complex_ssa_name_components,
|
2 * num_ssa_names);
|
2 * num_ssa_names);
|
|
|
update_parameter_components ();
|
update_parameter_components ();
|
|
|
/* ??? Ideally we'd traverse the blocks in breadth-first order. */
|
/* ??? Ideally we'd traverse the blocks in breadth-first order. */
|
old_last_basic_block = last_basic_block;
|
old_last_basic_block = last_basic_block;
|
FOR_EACH_BB (bb)
|
FOR_EACH_BB (bb)
|
{
|
{
|
if (bb->index >= old_last_basic_block)
|
if (bb->index >= old_last_basic_block)
|
continue;
|
continue;
|
|
|
update_phi_components (bb);
|
update_phi_components (bb);
|
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
|
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
|
expand_complex_operations_1 (&gsi);
|
expand_complex_operations_1 (&gsi);
|
}
|
}
|
|
|
gsi_commit_edge_inserts ();
|
gsi_commit_edge_inserts ();
|
|
|
htab_delete (complex_variable_components);
|
htab_delete (complex_variable_components);
|
VEC_free (tree, heap, complex_ssa_name_components);
|
VEC_free (tree, heap, complex_ssa_name_components);
|
VEC_free (complex_lattice_t, heap, complex_lattice_values);
|
VEC_free (complex_lattice_t, heap, complex_lattice_values);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
struct gimple_opt_pass pass_lower_complex =
|
struct gimple_opt_pass pass_lower_complex =
|
{
|
{
|
{
|
{
|
GIMPLE_PASS,
|
GIMPLE_PASS,
|
"cplxlower", /* name */
|
"cplxlower", /* name */
|
0, /* gate */
|
0, /* gate */
|
tree_lower_complex, /* execute */
|
tree_lower_complex, /* execute */
|
NULL, /* sub */
|
NULL, /* sub */
|
NULL, /* next */
|
NULL, /* next */
|
0, /* static_pass_number */
|
0, /* static_pass_number */
|
TV_NONE, /* tv_id */
|
TV_NONE, /* tv_id */
|
PROP_ssa, /* properties_required */
|
PROP_ssa, /* properties_required */
|
PROP_gimple_lcx, /* properties_provided */
|
PROP_gimple_lcx, /* properties_provided */
|
0, /* properties_destroyed */
|
0, /* properties_destroyed */
|
0, /* todo_flags_start */
|
0, /* todo_flags_start */
|
TODO_dump_func
|
TODO_dump_func
|
| TODO_ggc_collect
|
| TODO_ggc_collect
|
| TODO_update_ssa
|
| TODO_update_ssa
|
| TODO_verify_stmts /* todo_flags_finish */
|
| TODO_verify_stmts /* todo_flags_finish */
|
}
|
}
|
};
|
};
|
|
|
|
|
static bool
|
static bool
|
gate_no_optimization (void)
|
gate_no_optimization (void)
|
{
|
{
|
/* With errors, normal optimization passes are not run. If we don't
|
/* With errors, normal optimization passes are not run. If we don't
|
lower complex operations at all, rtl expansion will abort. */
|
lower complex operations at all, rtl expansion will abort. */
|
return !(cfun->curr_properties & PROP_gimple_lcx);
|
return !(cfun->curr_properties & PROP_gimple_lcx);
|
}
|
}
|
|
|
struct gimple_opt_pass pass_lower_complex_O0 =
|
struct gimple_opt_pass pass_lower_complex_O0 =
|
{
|
{
|
{
|
{
|
GIMPLE_PASS,
|
GIMPLE_PASS,
|
"cplxlower0", /* name */
|
"cplxlower0", /* name */
|
gate_no_optimization, /* gate */
|
gate_no_optimization, /* gate */
|
tree_lower_complex, /* execute */
|
tree_lower_complex, /* execute */
|
NULL, /* sub */
|
NULL, /* sub */
|
NULL, /* next */
|
NULL, /* next */
|
0, /* static_pass_number */
|
0, /* static_pass_number */
|
TV_NONE, /* tv_id */
|
TV_NONE, /* tv_id */
|
PROP_cfg, /* properties_required */
|
PROP_cfg, /* properties_required */
|
PROP_gimple_lcx, /* properties_provided */
|
PROP_gimple_lcx, /* properties_provided */
|
0, /* properties_destroyed */
|
0, /* properties_destroyed */
|
0, /* todo_flags_start */
|
0, /* todo_flags_start */
|
TODO_dump_func
|
TODO_dump_func
|
| TODO_ggc_collect
|
| TODO_ggc_collect
|
| TODO_update_ssa
|
| TODO_update_ssa
|
| TODO_verify_stmts /* todo_flags_finish */
|
| TODO_verify_stmts /* todo_flags_finish */
|
}
|
}
|
};
|
};
|
|
|
