OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR tree-optimization/43164 (ice in completely_scalarize_record, at tree-sra.c:85)

Browse Source 
2010-03-04  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/43164
	PR tree-optimization/43191
	* tree-sra.c (type_consists_of_records_p): Reject records with
	zero-size bit-fields at the end.

	* testsuite/gcc.c-torture/compile/pr43164.c: New test.
	* testsuite/gcc.c-torture/compile/pr43191.c: Likewise.

From-SVN: r157232
This commit is contained in:
Martin Jambor 2010-03-04 19:16:32 +01:00 committed by Martin Jambor
parent 83ff92fb26
commit 76f76cd0e5
5 changed files with 86 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2010-03-04 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/43164
PR tree-optimization/43191
* tree-sra.c (type_consists_of_records_p): Reject records with
zero-size bit-fields at the end.
2010-03-04 Mike Stump <mikestump@comcast.net>
* Makefile.in (TAGS): Remove *.y.

7
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2010-03-04 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/43164
PR tree-optimization/43191
* gcc.c-torture/compile/pr43164.c: New test.
* gcc.c-torture/compile/pr43191.c: Likewise.
2010-03-04 Janus Weil <janus@gcc.gnu.org>
PR fortran/43244

16
gcc/testsuite/gcc.c-torture/compile/pr43164.c Normal file
View File

@ -0,0 +1,16 @@
struct S0
{
unsigned char f0;
int:0;
};
struct S1
{
struct S0 f0;
};
struct S1 func_34 (void)
{
struct S1 l_221 = { { 1 } };
return l_221;
}

46
gcc/testsuite/gcc.c-torture/compile/pr43191.c Normal file
View File

@ -0,0 +1,46 @@
struct S0
{
};
struct S1
{
unsigned f0:27;
const unsigned:0;
};
struct S2
{
unsigned f2:1;
};
unsigned char g_4[1][8][3][1][1][1];
unsigned char *g_17;
unsigned char **g_16[1][10][7];
struct S2 g_35 = {
0
};
struct S2 *g_34 = &g_35;
struct S1 func_86 (unsigned char p_87, struct S2 **p_89)
{
struct S1 l_92[6][8][1][1] = {
16143586
}
;
return l_92[0][0][0][0];
}
void func_28 (struct S1 p_30, const struct S1 p_32)
{
}
void func_70 (unsigned char p_72)
{
unsigned char *const *l_93 = &g_17;
struct S2 **l_94;
unsigned char *const *l_97 = &g_17;
func_28 (func_86 (p_72, 0),
func_86 (p_72, &g_34));
}

12
gcc/tree-sra.c
View File

@ -802,13 +802,15 @@ create_access (tree expr, gimple stmt, bool write)
/* Return true iff TYPE is a RECORD_TYPE with fields that are either of gimple
register types or (recursively) records with only these two kinds of
fields. */
register types or (recursively) records with only these two kinds of fields.
It also returns false if any of these records has a zero-size field as its
last field. */
static bool
type_consists_of_records_p (tree type)
{
tree fld;
bool last_fld_has_zero_size = false;
if (TREE_CODE (type) != RECORD_TYPE)
return false;
@ -821,7 +823,13 @@ type_consists_of_records_p (tree type)
if (!is_gimple_reg_type (ft)
&& !type_consists_of_records_p (ft))
return false;
last_fld_has_zero_size = tree_low_cst (DECL_SIZE (fld), 1) == 0;
}
if (last_fld_has_zero_size)
return false;
return true;
}