Handle another transformation.
testsuite:
* gcc.c-torture/execute/string-opt-11.c: Add more strspn checks.
* gcc.c-torture/execute/string-opt-12.c: Add more strcspn checks.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37986
138bc75d-0d04-0410-961f-
82ee72b054a4
+2000-12-03 Kaveh R. Ghazi <ghazi@teal.rutgers.edu>
+
+ * builtins.c (expand_builtin_strspn, expand_builtin_strcspn):
+ Handle another transformation.
+
2000-12-03 Nick Clifton <nickc@redhat.com>
* config.gcc: Add support for StrongARM targets.
return expand_expr (size_int (r), target, mode, EXPAND_NORMAL);
}
- /* If the second argument is "", return 0. */
- if (p2 && *p2 == '\0')
+ /* If either argument is "", return 0. */
+ if ((p1 && *p1 == '\0') || (p2 && *p2 == '\0'))
{
- /* Evaluate and ignore argument s1 in case it has
+ /* Evaluate and ignore both arguments in case either one has
side-effects. */
expand_expr (s1, const0_rtx, VOIDmode, EXPAND_NORMAL);
+ expand_expr (s2, const0_rtx, VOIDmode, EXPAND_NORMAL);
return const0_rtx;
}
return 0;
return expand_expr (size_int (r), target, mode, EXPAND_NORMAL);
}
+ /* If the first argument is "", return 0. */
+ if (p1 && *p1 == '\0')
+ {
+ /* Evaluate and ignore argument s2 in case it has
+ side-effects. */
+ expand_expr (s2, const0_rtx, VOIDmode, EXPAND_NORMAL);
+ return const0_rtx;
+ }
+
/* If the second argument is "", return __builtin_strlen(s1). */
if (p2 && *p2 == '\0')
{
+2000-12-03 Kaveh R. Ghazi <ghazi@teal.rutgers.edu>
+
+ * gcc.c-torture/execute/string-opt-11.c: Add more strspn checks.
+ * gcc.c-torture/execute/string-opt-12.c: Add more strcspn checks.
+
2000-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.c-torture/execute/20001203-1.c: New test.
strcpy (dst, s1); d2 = dst;
if (strspn (++d2+5, "") != 0 || d2 != dst+1)
abort();
+ if (strspn ("", s1) != 0)
+ abort();
+ strcpy (dst, s1);
+ if (strspn ("", dst) != 0)
+ abort();
+ strcpy (dst, s1); d2 = dst;
+ if (strspn ("", ++d2) != 0 || d2 != dst+1)
+ abort();
+ strcpy (dst, s1); d2 = dst;
+ if (strspn ("", ++d2+5) != 0 || d2 != dst+1)
+ abort();
return 0;
}
strcpy (dst, s1); d2 = dst;
if (strcspn (++d2+5, "") != 5 || d2 != dst+1)
abort();
+ if (strcspn ("", s1) != 0)
+ abort();
+ strcpy (dst, s1);
+ if (strcspn ("", dst) != 0)
+ abort();
+ strcpy (dst, s1); d2 = dst;
+ if (strcspn ("", ++d2) != 0 || d2 != dst+1)
+ abort();
+ strcpy (dst, s1); d2 = dst;
+ if (strcspn ("", ++d2+5) != 0 || d2 != dst+1)
+ abort();
return 0;
}