re PR target/7842 ([REGRESSION] sparc code gen bug)

2002-09-25  David S. Miller  <davem@redhat.com>

	PR target/7842
	* gcc.c-torture/execute/shiftdi.c: New test.

From-SVN: r57533

gcc/testsuite/ChangeLog

+2002-09-25  David S. Miller  <davem@redhat.com>
+
+	PR target/7842
+	* gcc.c-torture/execute/shiftdi.c: New test.
+
 2002-09-26  Richard Earnshaw  <rearnsha@arm.com>
 
 	* lib/gcc.exp (gcc_init): Use a filename for the testglue that is

gcc/testsuite/gcc.c-torture/execute/shiftdi.c

+/* Failed on sparc with -mv8plus because sparc.c:set_extends() thought
+   erroneously that SImode ASHIFT chops the upper bits, it does not.  */
+
+typedef unsigned long long uint64;
+
+void g(uint64 x, int y, int z, uint64 *p)
+{
+	unsigned w = ((x >> y) & 0xffffffffULL) << (z & 0x1f);
+	*p |= (w & 0xffffffffULL) << z;
+}
+
+int main(void)
+{
+	uint64 a = 0;
+	g(0xdeadbeef01234567ULL, 0, 0, &a);
+	return (a == 0x01234567) ? 0 : 1;
+}
+
+
+