2011-10-23 David S. Miller <davem@davemloft.net>
+ * config/sparc/predicates.md (input_operand): Disallow vector
+ constants other than 0 and -1.
+ * config/sparc/sparc.c (sparc_preferred_reload_class): Return
+ NO_REGS for vector constants other than 0 and -1.
+
* config/sparc/sparc.h (SPARC_FIRST_INT_REG, SPARC_LAST_INT_REG,
SPARC_INT_REG_P): Define.
(HARD_REGNO_NREGS): Use SPARC_INT_REG_P.
&& (GET_CODE (op) == CONST_DOUBLE || GET_CODE (op) == CONST_INT))
return true;
- if ((mclass == MODE_FLOAT && GET_CODE (op) == CONST_DOUBLE)
- || (mclass == MODE_VECTOR_INT && GET_CODE (op) == CONST_VECTOR))
+ if (mclass == MODE_FLOAT && GET_CODE (op) == CONST_DOUBLE)
+ return true;
+
+ if (mclass == MODE_VECTOR_INT && GET_CODE (op) == CONST_VECTOR
+ && (const_zero_operand (op, mode)
+ || const_all_ones_operand (op, mode)))
return true;
if (register_operand (op, mode))
static reg_class_t
sparc_preferred_reload_class (rtx x, reg_class_t rclass)
{
+ enum machine_mode mode = GET_MODE (x);
if (CONSTANT_P (x))
{
if (FP_REG_CLASS_P (rclass)
|| rclass == GENERAL_OR_FP_REGS
|| rclass == GENERAL_OR_EXTRA_FP_REGS
- || (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT && ! TARGET_FPU)
- || (GET_MODE (x) == TFmode && ! const_zero_operand (x, TFmode)))
+ || (GET_MODE_CLASS (mode) == MODE_FLOAT && ! TARGET_FPU)
+ || (mode == TFmode && ! const_zero_operand (x, mode)))
return NO_REGS;
- if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT)
+ if (GET_MODE_CLASS (mode) == MODE_INT)
return GENERAL_REGS;
+
+ if (GET_MODE_CLASS (mode) == MODE_VECTOR_INT)
+ {
+ if (! FP_REG_CLASS_P (rclass)
+ || !(const_zero_operand (x, mode)
+ || const_all_ones_operand (x, mode)))
+ return NO_REGS;
+ }
}
return rclass;