/usr/lib/gcc-cross/powerpc-linux-gnu/6/plugin/include/ipa-ref.h is in gcc-6-plugin-dev-powerpc-linux-gnu 6.4.0-17ubuntu1cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | /* IPA reference lists.
Copyright (C) 2010-2016 Free Software Foundation, Inc.
Contributed by Jan Hubicka
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_IPA_REF_H
#define GCC_IPA_REF_H
struct cgraph_node;
class varpool_node;
class symtab_node;
/* How the reference is done. */
enum GTY(()) ipa_ref_use
{
IPA_REF_LOAD,
IPA_REF_STORE,
IPA_REF_ADDR,
IPA_REF_ALIAS,
IPA_REF_CHKP
};
/* Record of reference in callgraph or varpool. */
struct GTY(()) ipa_ref
{
public:
/* Remove reference. */
void remove_reference ();
/* Return true when execution of reference can lead to return from
function. */
bool cannot_lead_to_return ();
/* Return true if refernece may be used in address compare. */
bool address_matters_p ();
/* Return reference list this reference is in. */
struct ipa_ref_list * referring_ref_list (void);
/* Return reference list this reference is in. */
struct ipa_ref_list * referred_ref_list (void);
symtab_node *referring;
symtab_node *referred;
gimple *stmt;
unsigned int lto_stmt_uid;
unsigned int referred_index;
ENUM_BITFIELD (ipa_ref_use) use:3;
unsigned int speculative:1;
};
typedef struct ipa_ref ipa_ref_t;
typedef struct ipa_ref *ipa_ref_ptr;
/* List of references. This is stored in both callgraph and varpool nodes. */
struct GTY(()) ipa_ref_list
{
public:
/* Return first reference in list or NULL if empty. */
struct ipa_ref *first_reference (void)
{
if (!vec_safe_length (references))
return NULL;
return &(*references)[0];
}
/* Return first referring ref in list or NULL if empty. */
struct ipa_ref *first_referring (void)
{
if (!referring.length ())
return NULL;
return referring[0];
}
/* Return first referring alias. */
struct ipa_ref *first_alias (void)
{
struct ipa_ref *r = first_referring ();
return r && r->use == IPA_REF_ALIAS ? r : NULL;
}
/* Return last referring alias. */
struct ipa_ref *last_alias (void)
{
unsigned int i = 0;
for(i = 0; i < referring.length (); i++)
if (referring[i]->use != IPA_REF_ALIAS)
break;
return i == 0 ? NULL : referring[i - 1];
}
/* Return true if the symbol has an alias. */
bool inline has_aliases_p (void)
{
return first_alias ();
}
/* Clear reference list. */
void clear (void)
{
referring.create (0);
references = NULL;
}
/* Return number of references. */
unsigned int nreferences (void)
{
return vec_safe_length (references);
}
/* Store actual references in references vector. */
vec<ipa_ref_t, va_gc> *references;
/* Referring is vector of pointers to references. It must not live in GGC space
or GGC will try to mark middle of references vectors. */
vec<ipa_ref_ptr> GTY((skip)) referring;
};
#endif /* GCC_IPA_REF_H */
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