* gcc.c-torture/execute/ffs-1.c: New test.
* gcc.c-torture/execute/ffs-2.c: Ditto.
From-SVN: r57671
+2002-09-30 Jason Thorpe <thorpej@wasabisystems.com>
+
+ * gcc.c-torture/execute/ffs-1.c: New test.
+ * gcc.c-torture/execute/ffs-2.c: Ditto.
+
2002-09-30 Nathan Sidwell <nathan@codesourcery.com>
* g++.dg/overload/member1.C: New test.
--- /dev/null
+__volatile int a = 0;
+
+extern void abort (void);
+extern void exit (int);
+
+int
+main (void)
+{
+ if (__builtin_ffs (a) != 0)
+ abort ();
+ exit (0);
+}
--- /dev/null
+struct
+ {
+ int input;
+ int output;
+ }
+ffstesttab[] =
+ {
+#if __INT_MAX__ >= 2147483647
+ /* at least 32-bit integers */
+ { 0x80000000, 32 },
+ { 0xa5a5a5a5, 1 },
+ { 0x5a5a5a5a, 2 },
+ { 0xcafe0000, 18 },
+#endif
+#if __INT_MAX__ >= 32767
+ /* at least 16-bit integers */
+ { 0x8000, 16 },
+ { 0xa5a5, 1 },
+ { 0x5a5a, 2 },
+ { 0x0ca0, 6 },
+#endif
+#if __INT_MAX__ < 32767
+#error integers are too small
+#endif
+ };
+
+#define NFFSTESTS (sizeof (ffstesttab) / sizeof (ffstesttab[0]))
+
+extern void abort (void);
+extern void exit (int);
+
+int
+main (void)
+{
+ int i;
+
+ for (i = 0; i < NFFSTESTS; i++)
+ {
+ if (__builtin_ffs (ffstesttab[i].input) != ffstesttab[i].output)
+ abort ();
+ }
+
+ exit (0);
+}