/* Interprocedural analyses.
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/* Interprocedural analyses.
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Copyright (C) 2005, 2007, 2008, 2009
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Copyright (C) 2005, 2007, 2008, 2009
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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 under
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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Software Foundation; either version 3, or (at your option) any later
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version.
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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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#ifndef IPA_PROP_H
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#ifndef IPA_PROP_H
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#define IPA_PROP_H
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#define IPA_PROP_H
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#include "tree.h"
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#include "tree.h"
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#include "vec.h"
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#include "vec.h"
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#include "cgraph.h"
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#include "cgraph.h"
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/* The following definitions and interfaces are used by
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/* The following definitions and interfaces are used by
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interprocedural analyses or parameters. */
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interprocedural analyses or parameters. */
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/* ipa-prop.c stuff (ipa-cp, indirect inlining): */
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/* ipa-prop.c stuff (ipa-cp, indirect inlining): */
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/* A jump function for a callsite represents the values passed as actual
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/* A jump function for a callsite represents the values passed as actual
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arguments of the callsite. There are three main types of values :
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arguments of the callsite. There are three main types of values :
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Pass-through - the caller's formal parameter is passed as an actual
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Pass-through - the caller's formal parameter is passed as an actual
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argument, possibly one simple operation performed on it.
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argument, possibly one simple operation performed on it.
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Constant - a constant (is_gimple_ip_invariant)is passed as an actual
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Constant - a constant (is_gimple_ip_invariant)is passed as an actual
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argument.
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argument.
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Unknown - neither of the above.
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Unknown - neither of the above.
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IPA_JF_CONST_MEMBER_PTR stands for C++ member pointers, other constants are
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IPA_JF_CONST_MEMBER_PTR stands for C++ member pointers, other constants are
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represented with IPA_JF_CONST.
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represented with IPA_JF_CONST.
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In addition to "ordinary" pass through functions represented by
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In addition to "ordinary" pass through functions represented by
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IPA_JF_PASS_THROUGH, IPA_JF_ANCESTOR represents getting addresses of of
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IPA_JF_PASS_THROUGH, IPA_JF_ANCESTOR represents getting addresses of of
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ancestor fields in C++ (e.g. &this_1(D)->D.1766.D.1756). */
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ancestor fields in C++ (e.g. &this_1(D)->D.1766.D.1756). */
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enum jump_func_type
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enum jump_func_type
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{
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{
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IPA_JF_UNKNOWN = 0, /* newly allocated and zeroed jump functions default */
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IPA_JF_UNKNOWN = 0, /* newly allocated and zeroed jump functions default */
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IPA_JF_CONST,
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IPA_JF_CONST,
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IPA_JF_CONST_MEMBER_PTR,
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IPA_JF_CONST_MEMBER_PTR,
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IPA_JF_PASS_THROUGH,
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IPA_JF_PASS_THROUGH,
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IPA_JF_ANCESTOR
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IPA_JF_ANCESTOR
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};
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};
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/* All formal parameters in the program have a lattice associated with it
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/* All formal parameters in the program have a lattice associated with it
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computed by the interprocedural stage of IPCP.
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computed by the interprocedural stage of IPCP.
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There are three main values of the lattice:
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There are three main values of the lattice:
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IPA_TOP - unknown,
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IPA_TOP - unknown,
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IPA_BOTTOM - non constant,
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IPA_BOTTOM - non constant,
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IPA_CONST_VALUE - simple scalar constant,
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IPA_CONST_VALUE - simple scalar constant,
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Cval of formal f will have a constant value if all callsites to this
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Cval of formal f will have a constant value if all callsites to this
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function have the same constant value passed to f.
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function have the same constant value passed to f.
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Integer and real constants are represented as IPA_CONST_VALUE. */
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Integer and real constants are represented as IPA_CONST_VALUE. */
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enum ipa_lattice_type
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enum ipa_lattice_type
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{
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{
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IPA_BOTTOM,
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IPA_BOTTOM,
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IPA_CONST_VALUE,
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IPA_CONST_VALUE,
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IPA_TOP
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IPA_TOP
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};
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};
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/* Structure holding data required to describe a pass-through jump function. */
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/* Structure holding data required to describe a pass-through jump function. */
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struct GTY(()) ipa_pass_through_data
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struct GTY(()) ipa_pass_through_data
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{
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{
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/* If an operation is to be performed on the original parameter, this is the
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/* If an operation is to be performed on the original parameter, this is the
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second (constant) operand. */
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second (constant) operand. */
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tree operand;
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tree operand;
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/* Number of the caller's formal parameter being passed. */
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/* Number of the caller's formal parameter being passed. */
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int formal_id;
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int formal_id;
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/* Operation that is performed on the argument before it is passed on.
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/* Operation that is performed on the argument before it is passed on.
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NOP_EXPR means no operation. Otherwise oper must be a simple binary
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NOP_EXPR means no operation. Otherwise oper must be a simple binary
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arithmetic operation where the caller's parameter is the first operand and
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arithmetic operation where the caller's parameter is the first operand and
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operand field from this structure is the second one. */
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operand field from this structure is the second one. */
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enum tree_code operation;
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enum tree_code operation;
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};
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};
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/* Structure holding data required to describe and ancestor pass throu
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/* Structure holding data required to describe and ancestor pass throu
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funkci. */
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funkci. */
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struct GTY(()) ipa_ancestor_jf_data
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struct GTY(()) ipa_ancestor_jf_data
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{
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{
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/* Offset of the field representing the ancestor. */
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/* Offset of the field representing the ancestor. */
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HOST_WIDE_INT offset;
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HOST_WIDE_INT offset;
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/* TYpe of the result. */
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/* TYpe of the result. */
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tree type;
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tree type;
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/* Number of the caller's formal parameter being passed. */
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/* Number of the caller's formal parameter being passed. */
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int formal_id;
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int formal_id;
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};
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};
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/* Structure holding a C++ member pointer constant. Holds a pointer to the
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/* Structure holding a C++ member pointer constant. Holds a pointer to the
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method and delta offset. */
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method and delta offset. */
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struct GTY(()) ipa_member_ptr_cst
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struct GTY(()) ipa_member_ptr_cst
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{
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{
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tree pfn;
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tree pfn;
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tree delta;
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tree delta;
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};
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};
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/* A jump function for a callsite represents the values passed as actual
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/* A jump function for a callsite represents the values passed as actual
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arguments of the callsite. See enum jump_func_type for the various
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arguments of the callsite. See enum jump_func_type for the various
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types of jump functions supported. */
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types of jump functions supported. */
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struct GTY (()) ipa_jump_func
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struct GTY (()) ipa_jump_func
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{
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{
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enum jump_func_type type;
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enum jump_func_type type;
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/* Represents a value of a jump function. pass_through is used only in jump
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/* Represents a value of a jump function. pass_through is used only in jump
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function context. constant represents the actual constant in constant jump
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function context. constant represents the actual constant in constant jump
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functions and member_cst holds constant c++ member functions. */
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functions and member_cst holds constant c++ member functions. */
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union jump_func_value
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union jump_func_value
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{
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{
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tree GTY ((tag ("IPA_JF_CONST"))) constant;
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tree GTY ((tag ("IPA_JF_CONST"))) constant;
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struct ipa_pass_through_data GTY ((tag ("IPA_JF_PASS_THROUGH"))) pass_through;
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struct ipa_pass_through_data GTY ((tag ("IPA_JF_PASS_THROUGH"))) pass_through;
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struct ipa_ancestor_jf_data GTY ((tag ("IPA_JF_ANCESTOR"))) ancestor;
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struct ipa_ancestor_jf_data GTY ((tag ("IPA_JF_ANCESTOR"))) ancestor;
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struct ipa_member_ptr_cst GTY ((tag ("IPA_JF_CONST_MEMBER_PTR"))) member_cst;
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struct ipa_member_ptr_cst GTY ((tag ("IPA_JF_CONST_MEMBER_PTR"))) member_cst;
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} GTY ((desc ("%1.type"))) value;
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} GTY ((desc ("%1.type"))) value;
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};
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};
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/* All formal parameters in the program have a cval computed by
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/* All formal parameters in the program have a cval computed by
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the interprocedural stage of IPCP. See enum ipa_lattice_type for
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the interprocedural stage of IPCP. See enum ipa_lattice_type for
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the various types of lattices supported */
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the various types of lattices supported */
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struct ipcp_lattice
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struct ipcp_lattice
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{
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{
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enum ipa_lattice_type type;
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enum ipa_lattice_type type;
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tree constant;
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tree constant;
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};
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};
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/* Each instance of the following structure describes a statement that calls a
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/* Each instance of the following structure describes a statement that calls a
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function parameter. Those referring to statements within the same function
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function parameter. Those referring to statements within the same function
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are linked in a list. */
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are linked in a list. */
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struct ipa_param_call_note
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struct ipa_param_call_note
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{
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{
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/* Expected number of executions: calculated in profile.c. */
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/* Expected number of executions: calculated in profile.c. */
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gcov_type count;
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gcov_type count;
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/* Linked list's next */
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/* Linked list's next */
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struct ipa_param_call_note *next;
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struct ipa_param_call_note *next;
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/* Statement that contains the call to the parameter above. */
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/* Statement that contains the call to the parameter above. */
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gimple stmt;
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gimple stmt;
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/* When in LTO, we the above stmt will be NULL and we need an uid. */
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/* When in LTO, we the above stmt will be NULL and we need an uid. */
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unsigned int lto_stmt_uid;
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unsigned int lto_stmt_uid;
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/* Index of the parameter that is called. */
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/* Index of the parameter that is called. */
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int formal_id;
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int formal_id;
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/* Expected frequency of executions within the function. see cgraph_edge in
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/* Expected frequency of executions within the function. see cgraph_edge in
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cgraph.h for more on this. */
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cgraph.h for more on this. */
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int frequency;
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int frequency;
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/* Depth of loop nest, 1 means no loop nest. */
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/* Depth of loop nest, 1 means no loop nest. */
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unsigned short int loop_nest;
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unsigned short int loop_nest;
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/* Set when we have already found the target to be a compile time constant
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/* Set when we have already found the target to be a compile time constant
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and turned this into an edge or when the note was found unusable for some
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and turned this into an edge or when the note was found unusable for some
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reason. */
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reason. */
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bool processed;
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bool processed;
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};
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};
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/* Structure describing a single formal parameter. */
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/* Structure describing a single formal parameter. */
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struct ipa_param_descriptor
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struct ipa_param_descriptor
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{
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{
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/* IPA-CP lattice. */
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/* IPA-CP lattice. */
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struct ipcp_lattice ipcp_lattice;
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struct ipcp_lattice ipcp_lattice;
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/* PARAM_DECL of this parameter. */
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/* PARAM_DECL of this parameter. */
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tree decl;
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tree decl;
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/* Whether the value parameter has been modified within the function. */
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/* Whether the value parameter has been modified within the function. */
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unsigned modified : 1;
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unsigned modified : 1;
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};
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};
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/* ipa_node_params stores information related to formal parameters of functions
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/* ipa_node_params stores information related to formal parameters of functions
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and some other information for interprocedural passes that operate on
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and some other information for interprocedural passes that operate on
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parameters (such as ipa-cp). */
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parameters (such as ipa-cp). */
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struct ipa_node_params
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struct ipa_node_params
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{
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{
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/* Number of formal parameters of this function. When set to 0,
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/* Number of formal parameters of this function. When set to 0,
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this function's parameters would not be analyzed by the different
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this function's parameters would not be analyzed by the different
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stages of IPA CP. */
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stages of IPA CP. */
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int param_count;
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int param_count;
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/* Pointer to an array of structures describing individual formal
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/* Pointer to an array of structures describing individual formal
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parameters. */
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parameters. */
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struct ipa_param_descriptor *params;
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struct ipa_param_descriptor *params;
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/* List of structures enumerating calls to a formal parameter. */
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/* List of structures enumerating calls to a formal parameter. */
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struct ipa_param_call_note *param_calls;
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struct ipa_param_call_note *param_calls;
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/* Only for versioned nodes this field would not be NULL,
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/* Only for versioned nodes this field would not be NULL,
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it points to the node that IPA cp cloned from. */
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it points to the node that IPA cp cloned from. */
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struct cgraph_node *ipcp_orig_node;
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struct cgraph_node *ipcp_orig_node;
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/* Meaningful only for original functions. Expresses the
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/* Meaningful only for original functions. Expresses the
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ratio between the direct calls and sum of all invocations of
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ratio between the direct calls and sum of all invocations of
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this function (given by profiling info). It is used to calculate
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this function (given by profiling info). It is used to calculate
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the profiling information of the original function and the versioned
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the profiling information of the original function and the versioned
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one. */
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one. */
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gcov_type count_scale;
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gcov_type count_scale;
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/* Whether this function is called with variable number of actual
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/* Whether this function is called with variable number of actual
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arguments. */
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arguments. */
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unsigned called_with_var_arguments : 1;
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unsigned called_with_var_arguments : 1;
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/* Whether the modification analysis has already been performed. */
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/* Whether the modification analysis has already been performed. */
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unsigned modification_analysis_done : 1;
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unsigned modification_analysis_done : 1;
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/* Whether the param uses analysis has already been performed. */
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/* Whether the param uses analysis has already been performed. */
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unsigned uses_analysis_done : 1;
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unsigned uses_analysis_done : 1;
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/* Whether the function is enqueued in an ipa_func_list. */
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/* Whether the function is enqueued in an ipa_func_list. */
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unsigned node_enqueued : 1;
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unsigned node_enqueued : 1;
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};
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};
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/* ipa_node_params access functions. Please use these to access fields that
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/* ipa_node_params access functions. Please use these to access fields that
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are or will be shared among various passes. */
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are or will be shared among various passes. */
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/* Set the number of formal parameters. */
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/* Set the number of formal parameters. */
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static inline void
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static inline void
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ipa_set_param_count (struct ipa_node_params *info, int count)
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ipa_set_param_count (struct ipa_node_params *info, int count)
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{
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{
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info->param_count = count;
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info->param_count = count;
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}
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}
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/* Return the number of formal parameters. */
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/* Return the number of formal parameters. */
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static inline int
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static inline int
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ipa_get_param_count (struct ipa_node_params *info)
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ipa_get_param_count (struct ipa_node_params *info)
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{
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{
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return info->param_count;
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return info->param_count;
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}
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}
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/* Return the declaration of Ith formal parameter of the function corresponding
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/* Return the declaration of Ith formal parameter of the function corresponding
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to INFO. Note there is no setter function as this array is built just once
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to INFO. Note there is no setter function as this array is built just once
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using ipa_initialize_node_params. */
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using ipa_initialize_node_params. */
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static inline tree
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static inline tree
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ipa_get_param (struct ipa_node_params *info, int i)
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ipa_get_param (struct ipa_node_params *info, int i)
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{
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{
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return info->params[i].decl;
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return info->params[i].decl;
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}
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}
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/* Return the modification flag corresponding to the Ith formal parameter of
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/* Return the modification flag corresponding to the Ith formal parameter of
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the function associated with INFO. Note that there is no setter method as
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the function associated with INFO. Note that there is no setter method as
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the goal is to set all flags when building the array in
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the goal is to set all flags when building the array in
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ipa_detect_param_modifications. */
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ipa_detect_param_modifications. */
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static inline bool
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static inline bool
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ipa_is_param_modified (struct ipa_node_params *info, int i)
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ipa_is_param_modified (struct ipa_node_params *info, int i)
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{
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{
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return info->params[i].modified;
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return info->params[i].modified;
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}
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}
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/* Flag this node as having callers with variable number of arguments. */
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/* Flag this node as having callers with variable number of arguments. */
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static inline void
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static inline void
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ipa_set_called_with_variable_arg (struct ipa_node_params *info)
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ipa_set_called_with_variable_arg (struct ipa_node_params *info)
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{
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{
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info->called_with_var_arguments = 1;
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info->called_with_var_arguments = 1;
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}
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}
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/* Have we detected this node was called with variable number of arguments? */
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/* Have we detected this node was called with variable number of arguments? */
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static inline bool
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static inline bool
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ipa_is_called_with_var_arguments (struct ipa_node_params *info)
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ipa_is_called_with_var_arguments (struct ipa_node_params *info)
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{
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{
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return info->called_with_var_arguments;
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return info->called_with_var_arguments;
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}
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}
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/* ipa_edge_args stores information related to a callsite and particularly
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/* ipa_edge_args stores information related to a callsite and particularly
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its arguments. It is pointed to by a field in the
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its arguments. It is pointed to by a field in the
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callsite's corresponding cgraph_edge. */
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callsite's corresponding cgraph_edge. */
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typedef struct GTY(()) ipa_edge_args
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typedef struct GTY(()) ipa_edge_args
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{
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{
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/* Number of actual arguments in this callsite. When set to 0,
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/* Number of actual arguments in this callsite. When set to 0,
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this callsite's parameters would not be analyzed by the different
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this callsite's parameters would not be analyzed by the different
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stages of IPA CP. */
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stages of IPA CP. */
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int argument_count;
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int argument_count;
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/* Array of the callsite's jump function of each parameter. */
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/* Array of the callsite's jump function of each parameter. */
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struct ipa_jump_func GTY ((length ("%h.argument_count"))) *jump_functions;
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struct ipa_jump_func GTY ((length ("%h.argument_count"))) *jump_functions;
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} ipa_edge_args_t;
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} ipa_edge_args_t;
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/* ipa_edge_args access functions. Please use these to access fields that
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/* ipa_edge_args access functions. Please use these to access fields that
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are or will be shared among various passes. */
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are or will be shared among various passes. */
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/* Set the number of actual arguments. */
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/* Set the number of actual arguments. */
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static inline void
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static inline void
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ipa_set_cs_argument_count (struct ipa_edge_args *args, int count)
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ipa_set_cs_argument_count (struct ipa_edge_args *args, int count)
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{
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{
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args->argument_count = count;
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args->argument_count = count;
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}
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}
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/* Return the number of actual arguments. */
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/* Return the number of actual arguments. */
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static inline int
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static inline int
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ipa_get_cs_argument_count (struct ipa_edge_args *args)
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ipa_get_cs_argument_count (struct ipa_edge_args *args)
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{
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{
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return args->argument_count;
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return args->argument_count;
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}
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}
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/* Returns a pointer to the jump function for the ith argument. Please note
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/* Returns a pointer to the jump function for the ith argument. Please note
|
there is no setter function as jump functions are all set up in
|
there is no setter function as jump functions are all set up in
|
ipa_compute_jump_functions. */
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ipa_compute_jump_functions. */
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static inline struct ipa_jump_func *
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static inline struct ipa_jump_func *
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ipa_get_ith_jump_func (struct ipa_edge_args *args, int i)
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ipa_get_ith_jump_func (struct ipa_edge_args *args, int i)
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{
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{
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return &args->jump_functions[i];
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return &args->jump_functions[i];
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}
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}
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/* Vectors need to have typedefs of structures. */
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/* Vectors need to have typedefs of structures. */
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typedef struct ipa_node_params ipa_node_params_t;
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typedef struct ipa_node_params ipa_node_params_t;
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/* Types of vectors holding the infos. */
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/* Types of vectors holding the infos. */
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DEF_VEC_O (ipa_node_params_t);
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DEF_VEC_O (ipa_node_params_t);
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DEF_VEC_ALLOC_O (ipa_node_params_t, heap);
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DEF_VEC_ALLOC_O (ipa_node_params_t, heap);
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DEF_VEC_O (ipa_edge_args_t);
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DEF_VEC_O (ipa_edge_args_t);
|
DEF_VEC_ALLOC_O (ipa_edge_args_t, gc);
|
DEF_VEC_ALLOC_O (ipa_edge_args_t, gc);
|
|
|
/* Vector where the parameter infos are actually stored. */
|
/* Vector where the parameter infos are actually stored. */
|
extern VEC (ipa_node_params_t, heap) *ipa_node_params_vector;
|
extern VEC (ipa_node_params_t, heap) *ipa_node_params_vector;
|
/* Vector where the parameter infos are actually stored. */
|
/* Vector where the parameter infos are actually stored. */
|
extern GTY(()) VEC (ipa_edge_args_t, gc) *ipa_edge_args_vector;
|
extern GTY(()) VEC (ipa_edge_args_t, gc) *ipa_edge_args_vector;
|
|
|
/* Return the associated parameter/argument info corresponding to the given
|
/* Return the associated parameter/argument info corresponding to the given
|
node/edge. */
|
node/edge. */
|
#define IPA_NODE_REF(NODE) (VEC_index (ipa_node_params_t, \
|
#define IPA_NODE_REF(NODE) (VEC_index (ipa_node_params_t, \
|
ipa_node_params_vector, (NODE)->uid))
|
ipa_node_params_vector, (NODE)->uid))
|
#define IPA_EDGE_REF(EDGE) (VEC_index (ipa_edge_args_t, \
|
#define IPA_EDGE_REF(EDGE) (VEC_index (ipa_edge_args_t, \
|
ipa_edge_args_vector, (EDGE)->uid))
|
ipa_edge_args_vector, (EDGE)->uid))
|
/* This macro checks validity of index returned by
|
/* This macro checks validity of index returned by
|
ipa_get_param_decl_index function. */
|
ipa_get_param_decl_index function. */
|
#define IS_VALID_JUMP_FUNC_INDEX(I) ((I) != -1)
|
#define IS_VALID_JUMP_FUNC_INDEX(I) ((I) != -1)
|
|
|
/* Creating and freeing ipa_node_params and ipa_edge_args. */
|
/* Creating and freeing ipa_node_params and ipa_edge_args. */
|
void ipa_create_all_node_params (void);
|
void ipa_create_all_node_params (void);
|
void ipa_create_all_edge_args (void);
|
void ipa_create_all_edge_args (void);
|
void ipa_free_edge_args_substructures (struct ipa_edge_args *);
|
void ipa_free_edge_args_substructures (struct ipa_edge_args *);
|
void ipa_free_node_params_substructures (struct ipa_node_params *);
|
void ipa_free_node_params_substructures (struct ipa_node_params *);
|
void ipa_free_all_node_params (void);
|
void ipa_free_all_node_params (void);
|
void ipa_free_all_edge_args (void);
|
void ipa_free_all_edge_args (void);
|
void free_all_ipa_structures_after_ipa_cp (void);
|
void free_all_ipa_structures_after_ipa_cp (void);
|
void free_all_ipa_structures_after_iinln (void);
|
void free_all_ipa_structures_after_iinln (void);
|
void ipa_register_cgraph_hooks (void);
|
void ipa_register_cgraph_hooks (void);
|
|
|
/* This function ensures the array of node param infos is big enough to
|
/* This function ensures the array of node param infos is big enough to
|
accommodate a structure for all nodes and reallocates it if not. */
|
accommodate a structure for all nodes and reallocates it if not. */
|
|
|
static inline void
|
static inline void
|
ipa_check_create_node_params (void)
|
ipa_check_create_node_params (void)
|
{
|
{
|
if (!ipa_node_params_vector)
|
if (!ipa_node_params_vector)
|
ipa_node_params_vector = VEC_alloc (ipa_node_params_t, heap,
|
ipa_node_params_vector = VEC_alloc (ipa_node_params_t, heap,
|
cgraph_max_uid);
|
cgraph_max_uid);
|
|
|
if (VEC_length (ipa_node_params_t, ipa_node_params_vector)
|
if (VEC_length (ipa_node_params_t, ipa_node_params_vector)
|
<= (unsigned) cgraph_max_uid)
|
<= (unsigned) cgraph_max_uid)
|
VEC_safe_grow_cleared (ipa_node_params_t, heap,
|
VEC_safe_grow_cleared (ipa_node_params_t, heap,
|
ipa_node_params_vector, cgraph_max_uid + 1);
|
ipa_node_params_vector, cgraph_max_uid + 1);
|
}
|
}
|
|
|
/* This function ensures the array of edge arguments infos is big enough to
|
/* This function ensures the array of edge arguments infos is big enough to
|
accommodate a structure for all edges and reallocates it if not. */
|
accommodate a structure for all edges and reallocates it if not. */
|
|
|
static inline void
|
static inline void
|
ipa_check_create_edge_args (void)
|
ipa_check_create_edge_args (void)
|
{
|
{
|
if (!ipa_edge_args_vector)
|
if (!ipa_edge_args_vector)
|
ipa_edge_args_vector = VEC_alloc (ipa_edge_args_t, gc,
|
ipa_edge_args_vector = VEC_alloc (ipa_edge_args_t, gc,
|
cgraph_edge_max_uid);
|
cgraph_edge_max_uid);
|
|
|
if (VEC_length (ipa_edge_args_t, ipa_edge_args_vector)
|
if (VEC_length (ipa_edge_args_t, ipa_edge_args_vector)
|
<= (unsigned) cgraph_edge_max_uid)
|
<= (unsigned) cgraph_edge_max_uid)
|
VEC_safe_grow_cleared (ipa_edge_args_t, gc, ipa_edge_args_vector,
|
VEC_safe_grow_cleared (ipa_edge_args_t, gc, ipa_edge_args_vector,
|
cgraph_edge_max_uid + 1);
|
cgraph_edge_max_uid + 1);
|
}
|
}
|
|
|
/* Returns true if the array of edge infos is large enough to accommodate an
|
/* Returns true if the array of edge infos is large enough to accommodate an
|
info for EDGE. The main purpose of this function is that debug dumping
|
info for EDGE. The main purpose of this function is that debug dumping
|
function can check info availability without causing reallocations. */
|
function can check info availability without causing reallocations. */
|
|
|
static inline bool
|
static inline bool
|
ipa_edge_args_info_available_for_edge_p (struct cgraph_edge *edge)
|
ipa_edge_args_info_available_for_edge_p (struct cgraph_edge *edge)
|
{
|
{
|
return ((unsigned) edge->uid < VEC_length (ipa_edge_args_t,
|
return ((unsigned) edge->uid < VEC_length (ipa_edge_args_t,
|
ipa_edge_args_vector));
|
ipa_edge_args_vector));
|
}
|
}
|
|
|
/* A function list element. It is used to create a temporary worklist used in
|
/* A function list element. It is used to create a temporary worklist used in
|
the propagation stage of IPCP. (can be used for more IPA optimizations) */
|
the propagation stage of IPCP. (can be used for more IPA optimizations) */
|
struct ipa_func_list
|
struct ipa_func_list
|
{
|
{
|
struct cgraph_node *node;
|
struct cgraph_node *node;
|
struct ipa_func_list *next;
|
struct ipa_func_list *next;
|
};
|
};
|
|
|
/* ipa_func_list interface. */
|
/* ipa_func_list interface. */
|
struct ipa_func_list *ipa_init_func_list (void);
|
struct ipa_func_list *ipa_init_func_list (void);
|
void ipa_push_func_to_list_1 (struct ipa_func_list **, struct cgraph_node *,
|
void ipa_push_func_to_list_1 (struct ipa_func_list **, struct cgraph_node *,
|
struct ipa_node_params *);
|
struct ipa_node_params *);
|
struct cgraph_node *ipa_pop_func_from_list (struct ipa_func_list **);
|
struct cgraph_node *ipa_pop_func_from_list (struct ipa_func_list **);
|
|
|
/* Add cgraph NODE to the worklist WL if it is not already in one. */
|
/* Add cgraph NODE to the worklist WL if it is not already in one. */
|
|
|
static inline void
|
static inline void
|
ipa_push_func_to_list (struct ipa_func_list **wl, struct cgraph_node *node)
|
ipa_push_func_to_list (struct ipa_func_list **wl, struct cgraph_node *node)
|
{
|
{
|
struct ipa_node_params *info = IPA_NODE_REF (node);
|
struct ipa_node_params *info = IPA_NODE_REF (node);
|
|
|
if (!info->node_enqueued)
|
if (!info->node_enqueued)
|
ipa_push_func_to_list_1 (wl, node, info);
|
ipa_push_func_to_list_1 (wl, node, info);
|
}
|
}
|
|
|
/* Callsite related calculations. */
|
/* Callsite related calculations. */
|
void ipa_compute_jump_functions (struct cgraph_edge *);
|
void ipa_compute_jump_functions (struct cgraph_edge *);
|
void ipa_count_arguments (struct cgraph_edge *);
|
void ipa_count_arguments (struct cgraph_edge *);
|
|
|
/* Function formal parameters related computations. */
|
/* Function formal parameters related computations. */
|
void ipa_initialize_node_params (struct cgraph_node *node);
|
void ipa_initialize_node_params (struct cgraph_node *node);
|
void ipa_detect_param_modifications (struct cgraph_node *);
|
void ipa_detect_param_modifications (struct cgraph_node *);
|
void ipa_analyze_params_uses (struct cgraph_node *);
|
void ipa_analyze_params_uses (struct cgraph_node *);
|
bool ipa_propagate_indirect_call_infos (struct cgraph_edge *cs,
|
bool ipa_propagate_indirect_call_infos (struct cgraph_edge *cs,
|
VEC (cgraph_edge_p, heap) **new_edges);
|
VEC (cgraph_edge_p, heap) **new_edges);
|
|
|
/* Debugging interface. */
|
/* Debugging interface. */
|
void ipa_print_node_params (FILE *, struct cgraph_node *node);
|
void ipa_print_node_params (FILE *, struct cgraph_node *node);
|
void ipa_print_all_params (FILE *);
|
void ipa_print_all_params (FILE *);
|
void ipa_print_node_jump_functions (FILE *f, struct cgraph_node *node);
|
void ipa_print_node_jump_functions (FILE *f, struct cgraph_node *node);
|
void ipa_print_all_jump_functions (FILE * f);
|
void ipa_print_all_jump_functions (FILE * f);
|
|
|
/* Structure to describe transformations of formal parameters and actual
|
/* Structure to describe transformations of formal parameters and actual
|
arguments. Each instance describes one new parameter and they are meant to
|
arguments. Each instance describes one new parameter and they are meant to
|
be stored in a vector. Additionally, most users will probably want to store
|
be stored in a vector. Additionally, most users will probably want to store
|
adjustments about parameters that are being removed altogether so that SSA
|
adjustments about parameters that are being removed altogether so that SSA
|
names belonging to them can be replaced by SSA names of an artificial
|
names belonging to them can be replaced by SSA names of an artificial
|
variable. */
|
variable. */
|
struct ipa_parm_adjustment
|
struct ipa_parm_adjustment
|
{
|
{
|
/* The original PARM_DECL itself, helpful for processing of the body of the
|
/* The original PARM_DECL itself, helpful for processing of the body of the
|
function itself. Intended for traversing function bodies.
|
function itself. Intended for traversing function bodies.
|
ipa_modify_formal_parameters, ipa_modify_call_arguments and
|
ipa_modify_formal_parameters, ipa_modify_call_arguments and
|
ipa_combine_adjustments ignore this and use base_index.
|
ipa_combine_adjustments ignore this and use base_index.
|
ipa_modify_formal_parameters actually sets this. */
|
ipa_modify_formal_parameters actually sets this. */
|
tree base;
|
tree base;
|
|
|
/* Type of the new parameter. However, if by_ref is true, the real type will
|
/* Type of the new parameter. However, if by_ref is true, the real type will
|
be a pointer to this type. */
|
be a pointer to this type. */
|
tree type;
|
tree type;
|
|
|
/* The new declaration when creating/replacing a parameter. Created by
|
/* The new declaration when creating/replacing a parameter. Created by
|
ipa_modify_formal_parameters, useful for functions modifying the body
|
ipa_modify_formal_parameters, useful for functions modifying the body
|
accordingly. */
|
accordingly. */
|
tree reduction;
|
tree reduction;
|
|
|
/* New declaration of a substitute variable that we may use to replace all
|
/* New declaration of a substitute variable that we may use to replace all
|
non-default-def ssa names when a parm decl is going away. */
|
non-default-def ssa names when a parm decl is going away. */
|
tree new_ssa_base;
|
tree new_ssa_base;
|
|
|
/* If non-NULL and the original parameter is to be removed (copy_param below
|
/* If non-NULL and the original parameter is to be removed (copy_param below
|
is NULL), this is going to be its nonlocalized vars value. */
|
is NULL), this is going to be its nonlocalized vars value. */
|
tree nonlocal_value;
|
tree nonlocal_value;
|
|
|
/* Offset into the original parameter (for the cases when the new parameter
|
/* Offset into the original parameter (for the cases when the new parameter
|
is a component of an original one). */
|
is a component of an original one). */
|
HOST_WIDE_INT offset;
|
HOST_WIDE_INT offset;
|
|
|
/* Zero based index of the original parameter this one is based on. (ATM
|
/* Zero based index of the original parameter this one is based on. (ATM
|
there is no way to insert a new parameter out of the blue because there is
|
there is no way to insert a new parameter out of the blue because there is
|
no need but if it arises the code can be easily exteded to do so.) */
|
no need but if it arises the code can be easily exteded to do so.) */
|
int base_index;
|
int base_index;
|
|
|
/* This new parameter is an unmodified parameter at index base_index. */
|
/* This new parameter is an unmodified parameter at index base_index. */
|
unsigned copy_param : 1;
|
unsigned copy_param : 1;
|
|
|
/* This adjustment describes a parameter that is about to be removed
|
/* This adjustment describes a parameter that is about to be removed
|
completely. Most users will probably need to book keep those so that they
|
completely. Most users will probably need to book keep those so that they
|
don't leave behinfd any non default def ssa names belonging to them. */
|
don't leave behinfd any non default def ssa names belonging to them. */
|
unsigned remove_param : 1;
|
unsigned remove_param : 1;
|
|
|
/* The parameter is to be passed by reference. */
|
/* The parameter is to be passed by reference. */
|
unsigned by_ref : 1;
|
unsigned by_ref : 1;
|
};
|
};
|
|
|
typedef struct ipa_parm_adjustment ipa_parm_adjustment_t;
|
typedef struct ipa_parm_adjustment ipa_parm_adjustment_t;
|
DEF_VEC_O (ipa_parm_adjustment_t);
|
DEF_VEC_O (ipa_parm_adjustment_t);
|
DEF_VEC_ALLOC_O (ipa_parm_adjustment_t, heap);
|
DEF_VEC_ALLOC_O (ipa_parm_adjustment_t, heap);
|
|
|
typedef VEC (ipa_parm_adjustment_t, heap) *ipa_parm_adjustment_vec;
|
typedef VEC (ipa_parm_adjustment_t, heap) *ipa_parm_adjustment_vec;
|
|
|
VEC(tree, heap) *ipa_get_vector_of_formal_parms (tree fndecl);
|
VEC(tree, heap) *ipa_get_vector_of_formal_parms (tree fndecl);
|
void ipa_modify_formal_parameters (tree fndecl, ipa_parm_adjustment_vec,
|
void ipa_modify_formal_parameters (tree fndecl, ipa_parm_adjustment_vec,
|
const char *);
|
const char *);
|
void ipa_modify_call_arguments (struct cgraph_edge *, gimple,
|
void ipa_modify_call_arguments (struct cgraph_edge *, gimple,
|
ipa_parm_adjustment_vec);
|
ipa_parm_adjustment_vec);
|
ipa_parm_adjustment_vec ipa_combine_adjustments (ipa_parm_adjustment_vec,
|
ipa_parm_adjustment_vec ipa_combine_adjustments (ipa_parm_adjustment_vec,
|
ipa_parm_adjustment_vec);
|
ipa_parm_adjustment_vec);
|
void ipa_dump_param_adjustments (FILE *, ipa_parm_adjustment_vec, tree);
|
void ipa_dump_param_adjustments (FILE *, ipa_parm_adjustment_vec, tree);
|
|
|
void ipa_prop_write_jump_functions (cgraph_node_set set);
|
void ipa_prop_write_jump_functions (cgraph_node_set set);
|
void ipa_prop_read_jump_functions (void);
|
void ipa_prop_read_jump_functions (void);
|
void ipa_update_after_lto_read (void);
|
void ipa_update_after_lto_read (void);
|
void lto_ipa_fixup_call_notes (struct cgraph_node *, gimple *);
|
void lto_ipa_fixup_call_notes (struct cgraph_node *, gimple *);
|
|
|
/* From tree-sra.c: */
|
/* From tree-sra.c: */
|
bool build_ref_for_offset (tree *, tree, HOST_WIDE_INT, tree, bool);
|
bool build_ref_for_offset (tree *, tree, HOST_WIDE_INT, tree, bool);
|
|
|
#endif /* IPA_PROP_H */
|
#endif /* IPA_PROP_H */
|
|
|
