/* Emit RTL for the GCC expander.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010
Free Software Foundation, Inc.
This file is part of GCC.
return lookup_const_fixed (fixed);
}
+/* Constructs double_int from rtx CST. */
+
+double_int
+rtx_to_double_int (const_rtx cst)
+{
+ double_int r;
+
+ if (CONST_INT_P (cst))
+ r = shwi_to_double_int (INTVAL (cst));
+ else if (CONST_DOUBLE_P (cst) && GET_MODE (cst) == VOIDmode)
+ {
+ r.low = CONST_DOUBLE_LOW (cst);
+ r.high = CONST_DOUBLE_HIGH (cst);
+ }
+ else
+ gcc_unreachable ();
+
+ return r;
+}
+
+
+/* Return a CONST_DOUBLE or CONST_INT for a value specified as
+ a double_int. */
+
+rtx
+immed_double_int_const (double_int i, enum machine_mode mode)
+{
+ return immed_double_const (i.low, i.high, mode);
+}
+
/* Return a CONST_DOUBLE or CONST_INT for a value specified as a pair
of ints: I0 is the low-order word and I1 is the high-order word.
Do not use this routine for non-integer modes; convert to
the size we got from the type? */
}
- else if (flag_argument_noalias > 1
- && (INDIRECT_REF_P (t2))
- && TREE_CODE (TREE_OPERAND (t2, 0)) == PARM_DECL)
- {
- expr = t2;
- offset = NULL;
- }
-
/* If this is an indirect reference, record it. */
else if (TREE_CODE (t) == INDIRECT_REF
|| TREE_CODE (t) == MISALIGNED_INDIRECT_REF)
}
}
- /* If this is a Fortran indirect argument reference, record the
- parameter decl. */
- else if (flag_argument_noalias > 1
- && (INDIRECT_REF_P (t))
- && TREE_CODE (TREE_OPERAND (t, 0)) == PARM_DECL)
- {
- expr = t;
- offset = NULL;
- }
-
/* If this is an indirect reference, record it. */
else if (TREE_CODE (t) == INDIRECT_REF
|| TREE_CODE (t) == MISALIGNED_INDIRECT_REF)