re PR c/35526 (ICE on memcpy)

	PR middle-end/35526
	* expr.c (store_expr): Call emit_block_move if the mode
	of "temp" RTX is BLKmode.

testsuite/ChangeLog:

	PR middle-end/35526
	* g++.dg/torture/pr35526.C: New test.

From-SVN: r133106

gcc/ChangeLog

+2008-03-11  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR middle-end/35526
+	* expr.c (store_expr): Call emit_block_move if the mode
+	of "temp" RTX is BLKmode.
+
 2008-03-11  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 	    Richard Guenther  <rguenther@suse.de>
 

gcc/expr.c

@@ -4654,7 +4654,8 @@ store_expr (tree exp, rtx target, int call_param_p, bool nontemporal)
 	      temp = convert_to_mode (GET_MODE (target), temp, unsignedp);
 	      emit_move_insn (target, temp);
 	    }
-	  else if (GET_MODE (target) == BLKmode)
+	  else if (GET_MODE (target) == BLKmode
+		   || GET_MODE (temp) == BLKmode)
 	    emit_block_move (target, temp, expr_size (exp),
 			     (call_param_p
 			      ? BLOCK_OP_CALL_PARM

gcc/testsuite/ChangeLog

+2008-03-11  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR middle-end/35526
+	* g++.dg/torture/pr35526.C: New test.
+
 2008-03-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/35328

gcc/testsuite/g++.dg/torture/pr35526.C

+/* { dg-do compile } */
+
+extern void *memcpy (void *__dest, __const void *__src, __SIZE_TYPE__  __n);
+
+char internal_crash_read_ip[] = { 0xb8 };
+
+struct u_internal_crash_read_t
+{
+  char ip[sizeof (internal_crash_read_ip)];
+}
+u_internal_crash_read;
+
+void
+gSignalHandler (int psignalNr, int pinfo, int pctx)
+{
+  memcpy (u_internal_crash_read.ip, internal_crash_read_ip,
+	  sizeof (internal_crash_read_ip));
+}