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re PR sanitizer/63866 (ICE in C++ printer with -fdump-ipa)

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PR sanitizer/63866
	* asan.c (asan_global_struct): Create a TYPE_DECL for "__asan_global",
	put it into TYPE_NAME and TYPE_STUB_DECL.
	* ubsan.c (ubsan_type_descriptor_type): New variable.
	Function renamed to ...
	(ubsan_get_type_descriptor_type): ... this.  Cache
	return value in ubsan_type_descriptor_type variable.
	Create a TYPE_DECL for "__ubsan_type_descriptor", put it into
	TYPE_NAME and TYPE_STUB_DECL.
	(ubsan_get_source_location_type): Create a TYPE_DECL for
	"__ubsan_source_location", put it into TYPE_NAME and TYPE_STUB_DECL.
	(ubsan_type_descriptor, ubsan_create_data): Call
	ubsan_get_type_descriptor_type instead of ubsan_type_descriptor_type.
	Create a TYPE_DECL for name, put it into TYPE_NAME and TYPE_STUB_DECL.

	* c-c++-common/ubsan/pr63866.c: New test.

From-SVN: r217718
This commit is contained in:
Marek Polacek 2014-11-18 14:55:44 +00:00 committed by Marek Polacek
parent 594bdd53d8
commit bebcdc6742
5 changed files with 70 additions and 8 deletions
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17
gcc/ChangeLog
View File

@ -1,3 +1,20 @@
2014-11-18 Marek Polacek <polacek@redhat.com>
PR sanitizer/63866
* asan.c (asan_global_struct): Create a TYPE_DECL for "__asan_global",
put it into TYPE_NAME and TYPE_STUB_DECL.
* ubsan.c (ubsan_type_descriptor_type): New variable.
Function renamed to ...
(ubsan_get_type_descriptor_type): ... this. Cache
return value in ubsan_type_descriptor_type variable.
Create a TYPE_DECL for "__ubsan_type_descriptor", put it into
TYPE_NAME and TYPE_STUB_DECL.
(ubsan_get_source_location_type): Create a TYPE_DECL for
"__ubsan_source_location", put it into TYPE_NAME and TYPE_STUB_DECL.
(ubsan_type_descriptor, ubsan_create_data): Call
ubsan_get_type_descriptor_type instead of ubsan_type_descriptor_type.
Create a TYPE_DECL for name, put it into TYPE_NAME and TYPE_STUB_DECL.
2014-11-18 Felix Yang <felix.yang@huawei.com>
* config/aarch64/aarch64.c (doloop_end): New pattern.

7
gcc/asan.c
View File

@ -2168,8 +2168,13 @@ asan_global_struct (void)
if (i)
DECL_CHAIN (fields[i - 1]) = fields[i];
}
tree type_decl = build_decl (input_location, TYPE_DECL,
get_identifier ("__asan_global"), ret);
DECL_IGNORED_P (type_decl) = 1;
DECL_ARTIFICIAL (type_decl) = 1;
TYPE_FIELDS (ret) = fields[0];
TYPE_NAME (ret) = get_identifier ("__asan_global");
TYPE_NAME (ret) = type_decl;
TYPE_STUB_DECL (ret) = type_decl;
layout_type (ret);
return ret;
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2014-11-18 Marek Polacek <polacek@redhat.com>
PR sanitizer/63866
* c-c++-common/ubsan/pr63866.c: New test.
2014-11-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/63914

11
gcc/testsuite/c-c++-common/ubsan/pr63866.c Normal file
View File

@ -0,0 +1,11 @@
/* PR sanitizer/63866 */
/* { dg-do compile } */
/* { dg-options "-fsanitize=undefined -fdump-ipa-cgraph" } */
int
foo (int x, int y)
{
return x + y;
}
/* { dg-final { cleanup-ipa-dump "cgraph" } } */

38
gcc/ubsan.c
View File

@ -179,6 +179,9 @@ ubsan_encode_value (tree t, bool in_expand_p)
}
}
/* Cached ubsan_get_type_descriptor_type () return value. */
static GTY(()) tree ubsan_type_descriptor_type;
/* Build
struct __ubsan_type_descriptor
{
@ -189,11 +192,15 @@ ubsan_encode_value (tree t, bool in_expand_p)
type. */
static tree
ubsan_type_descriptor_type (void)
ubsan_get_type_descriptor_type (void)
{
static const char *field_names[3]
= { "__typekind", "__typeinfo", "__typename" };
tree fields[3], ret;
if (ubsan_type_descriptor_type)
return ubsan_type_descriptor_type;
tree itype = build_range_type (sizetype, size_zero_node, NULL_TREE);
tree flex_arr_type = build_array_type (char_type_node, itype);
@ -208,9 +215,16 @@ ubsan_type_descriptor_type (void)
if (i)
DECL_CHAIN (fields[i - 1]) = fields[i];
}
tree type_decl = build_decl (input_location, TYPE_DECL,
get_identifier ("__ubsan_type_descriptor"),
ret);
DECL_IGNORED_P (type_decl) = 1;
DECL_ARTIFICIAL (type_decl) = 1;
TYPE_FIELDS (ret) = fields[0];
TYPE_NAME (ret) = get_identifier ("__ubsan_type_descriptor");
TYPE_NAME (ret) = type_decl;
TYPE_STUB_DECL (ret) = type_decl;
layout_type (ret);
ubsan_type_descriptor_type = ret;
return ret;
}
@ -249,8 +263,14 @@ ubsan_get_source_location_type (void)
if (i)
DECL_CHAIN (fields[i - 1]) = fields[i];
}
tree type_decl = build_decl (input_location, TYPE_DECL,
get_identifier ("__ubsan_source_location"),
ret);
DECL_IGNORED_P (type_decl) = 1;
DECL_ARTIFICIAL (type_decl) = 1;
TYPE_FIELDS (ret) = fields[0];
TYPE_NAME (ret) = get_identifier ("__ubsan_source_location");
TYPE_NAME (ret) = type_decl;
TYPE_STUB_DECL (ret) = type_decl;
layout_type (ret);
ubsan_source_location_type = ret;
return ret;
@ -333,7 +353,7 @@ ubsan_type_descriptor (tree type, enum ubsan_print_style pstyle)
if (decl != NULL_TREE && varpool_node::get (decl))
return build_fold_addr_expr (decl);
tree dtype = ubsan_type_descriptor_type ();
tree dtype = ubsan_get_type_descriptor_type ();
tree type2 = type;
const char *tname = NULL;
char *pretty_name;
@ -498,8 +518,7 @@ ubsan_create_data (const char *name, int loccnt, const location_t *ploc, ...)
int j;
/* Firstly, create a pointer to type descriptor type. */
tree td_type = ubsan_type_descriptor_type ();
TYPE_READONLY (td_type) = 1;
tree td_type = ubsan_get_type_descriptor_type ();
td_type = build_pointer_type (td_type);
/* Create the structure type. */
@ -543,8 +562,13 @@ ubsan_create_data (const char *name, int loccnt, const location_t *ploc, ...)
}
va_end (args);
tree type_decl = build_decl (input_location, TYPE_DECL,
get_identifier (name), ret);
DECL_IGNORED_P (type_decl) = 1;
DECL_ARTIFICIAL (type_decl) = 1;
TYPE_FIELDS (ret) = fields[0];
TYPE_NAME (ret) = get_identifier (name);
TYPE_NAME (ret) = type_decl;
TYPE_STUB_DECL (ret) = type_decl;
layout_type (ret);
/* Now, fill in the type. */