re PR rtl-optimization/35281 (multiply with 0 generated for 64*32->64)

2008-04-03  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/35281
	* gcc.target/i386/pr35281.c: New test.

From-SVN: r133859

gcc/testsuite/ChangeLog

+2008-04-03  Paolo Bonzini  <bonzini@gnu.org>
+
+	PR rtl-optimization/35281
+	* gcc.target/i386/pr35281.c: New test.
+
 2008-04-03  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/35800

gcc/testsuite/gcc.target/i386/pr35281.c

+/* { dg-options "-O2" } */
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+
+unsigned long long a;
+unsigned int b;
+unsigned short c;
+
+unsigned long long mul32()
+{
+  return a * b;
+}
+
+unsigned long long mul16()
+{
+  return a * c;
+}
+
+/* { dg-final { scan-assembler-not "xor" } } */