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re PR tree-optimization/42714 (ICE in create_tmp_var, at gimplify.c:504)

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2010-01-14  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/42714
	* tree-sra.c (sra_ipa_modify_assign): Handle incompatible-type
	constructors specially.

	* gcc/testsuite/g++.dg/torture/pr42714.C: New test.

From-SVN: r155905
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Martin Jambor 2010-01-14 14:29:44 +01:00 committed by Martin Jambor
parent a0463099e7
commit 92e97cdd7d
4 changed files with 62 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-01-14 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/42714
* tree-sra.c (sra_ipa_modify_assign): Handle incompatible-type
constructors specially.
2010-01-14 Andi Kleen <ak@linux.intel.com>
* config/i386/drivers-i386.c (detect_caches_intel):

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-01-14 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/42714
* gcc/testsuite/g++.dg/torture/pr42714.C: New test.
2010-01-14 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/42246

37
gcc/testsuite/g++.dg/torture/pr42714.C Normal file
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@ -0,0 +1,37 @@
struct QVectorData {
static QVectorData shared_null;
};
template <typename T> class QVector {
union {
QVectorData *d;
};
public:
inline QVector() : d(&QVectorData::shared_null) { }
inline QVector(const QVector<T> &v) : d(v.d) { }
};
class QXmlStreamAttribute { };
class QXmlStreamAttributes : public QVector<QXmlStreamAttribute> { };
class __attribute__ ((visibility("default"))) Smoke {
public:
union StackItem;
typedef StackItem* Stack;
typedef short Index;
};
class SmokeBinding { };
namespace __smokeqt {
class x_QXmlStreamAttributes : public QXmlStreamAttributes {
SmokeBinding* _binding;
public:
static void x_11(Smoke::Stack x) {
x_QXmlStreamAttributes* xret = new x_QXmlStreamAttributes();
}
explicit x_QXmlStreamAttributes() : QXmlStreamAttributes() { }
};
void xcall_QXmlStreamAttributes(Smoke::Index xi, void *obj,
Smoke::Stack args)
{
switch(xi) {
case 11: x_QXmlStreamAttributes::x_11(args);
}
}
}

16
gcc/tree-sra.c
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@ -3712,8 +3712,20 @@ sra_ipa_modify_assign (gimple *stmt_ptr, gimple_stmt_iterator *gsi, void *data)
tree new_rhs = NULL_TREE;
if (!useless_type_conversion_p (TREE_TYPE (*lhs_p), TREE_TYPE (*rhs_p)))
new_rhs = fold_build1_loc (gimple_location (stmt), VIEW_CONVERT_EXPR,
TREE_TYPE (*lhs_p), *rhs_p);
{
if (TREE_CODE (*rhs_p) == CONSTRUCTOR)
{
/* V_C_Es of constructors can cause trouble (PR 42714). */
if (is_gimple_reg_type (TREE_TYPE (*lhs_p)))
*rhs_p = fold_convert (TREE_TYPE (*lhs_p), integer_zero_node);
else
*rhs_p = build_constructor (TREE_TYPE (*lhs_p), 0);
}
else
new_rhs = fold_build1_loc (gimple_location (stmt),
VIEW_CONVERT_EXPR, TREE_TYPE (*lhs_p),
*rhs_p);
}
else if (REFERENCE_CLASS_P (*rhs_p)
&& is_gimple_reg_type (TREE_TYPE (*lhs_p))
&& !is_gimple_reg (*lhs_p))