re PR middle-end/65409 (ICE in store_field)

	PR middle-end/65409
	* expr.c (store_field): Do not do a direct block copy if the source is
	a PARALLEL with BLKmode.

From-SVN: r221453

gcc/ChangeLog

+2015-03-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR middle-end/65409
+	* expr.c (store_field): Do not do a direct block copy if the source is
+	a PARALLEL with BLKmode.
+
 2015-03-16  Tom de Vries  <tom@codesourcery.com>
 
 	PR middle-end/65414

gcc/expr.c

@@ -6645,11 +6645,12 @@ store_field (rtx target, HOST_WIDE_INT bitsize, HOST_WIDE_INT bitpos,
 	  && mode != TYPE_MODE (TREE_TYPE (exp)))
 	temp = convert_modes (mode, TYPE_MODE (TREE_TYPE (exp)), temp, 1);
 
-      /* If the modes of TEMP and TARGET are both BLKmode, both
-	 must be in memory and BITPOS must be aligned on a byte
-	 boundary.  If so, we simply do a block copy.  Likewise
-	 for a BLKmode-like TARGET.  */
-      if (GET_MODE (temp) == BLKmode
+      /* If TEMP is not a PARALLEL (see below) and its mode and that of TARGET
+	 are both BLKmode, both must be in memory and BITPOS must be aligned
+	 on a byte boundary.  If so, we simply do a block copy.  Likewise for
+	 a BLKmode-like TARGET.  */
+      if (GET_CODE (temp) != PARALLEL
+	  && GET_MODE (temp) == BLKmode
 	  && (GET_MODE (target) == BLKmode
 	      || (MEM_P (target)
 		  && GET_MODE_CLASS (GET_MODE (target)) == MODE_INT

gcc/testsuite/ChangeLog

+2015-03-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* testsuite/g++.dg/pr65049.C: New test.
+
 2015-03-16  Tom de Vries  <tom@codesourcery.com>
 
 	* gcc.target/i386/fuse-caller-save-rec.c: Add PR64895 xfail on scans.

gcc/testsuite/g++.dg/pr65049.C

+// PR middle-end/65409
+// Reported by Ignacy Gawedzki <bugs@qult.net>
+
+struct Foo
+{
+  Foo() {}
+  int  a;
+  int  b;
+  char c;
+};
+
+Foo copy_foo(Foo);
+
+struct Bar : Foo
+{
+  Bar(Foo t) : Foo(copy_foo(t)) {}
+};
+
+Bar a = Foo();