rs6000_single_float = rs6000_double_float = 1;
}
+ /* If not explicitly specified via option, decide whether to generate indexed
+ load/store instructions. */
+ if (TARGET_AVOID_XFORM == -1)
+ /* Avoid indexed addressing when targeting Power6 in order to avoid
+ the DERAT mispredict penalty. */
+ TARGET_AVOID_XFORM = (rs6000_cpu == PROCESSOR_POWER6 && TARGET_CMPB);
+
rs6000_init_hard_regno_mode_ok ();
}
&& INT_REG_OK_FOR_INDEX_P (op0, strict))));
}
+bool
+avoiding_indexed_address_p (enum machine_mode mode)
+{
+ /* Avoid indexed addressing for modes that have non-indexed
+ load/store instruction forms. */
+ return TARGET_AVOID_XFORM && !ALTIVEC_VECTOR_MODE (mode);
+}
+
inline bool
legitimate_indirect_address_p (rtx x, int strict)
{
|| ((mode != DImode && mode != DFmode && mode != DDmode)
|| (TARGET_E500_DOUBLE && mode != DDmode)))
&& (TARGET_POWERPC64 || mode != DImode)
+ && !avoiding_indexed_address_p (mode)
&& mode != TImode
&& mode != TFmode
&& mode != TDmode)
|| (mode != DFmode && mode != DDmode)
|| (TARGET_E500_DOUBLE && mode != DDmode))
&& (TARGET_POWERPC64 || mode != DImode)
+ && !avoiding_indexed_address_p (mode)
&& legitimate_indexed_address_p (x, reg_ok_strict))
return 1;
if (GET_CODE (x) == PRE_MODIFY
&& TARGET_UPDATE
&& legitimate_indirect_address_p (XEXP (x, 0), reg_ok_strict)
&& (rs6000_legitimate_offset_address_p (mode, XEXP (x, 1), reg_ok_strict)
- || legitimate_indexed_address_p (XEXP (x, 1), reg_ok_strict))
+ || (!avoiding_indexed_address_p (mode)
+ && legitimate_indexed_address_p (XEXP (x, 1), reg_ok_strict)))
&& rtx_equal_p (XEXP (XEXP (x, 1), 0), XEXP (x, 0)))
return 1;
if (legitimate_lo_sum_address_p (mode, x, reg_ok_strict))
(match_operand:DI 2 "reg_or_aligned_short_operand" "r,I"))))
(set (match_operand:DI 0 "gpc_reg_operand" "=b,b")
(plus:DI (match_dup 1) (match_dup 2)))]
- "TARGET_POWERPC64 && TARGET_UPDATE"
+ "TARGET_POWERPC64 && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (DImode)
+ || !gpc_reg_operand (operands[2], DImode))"
"@
ldux %3,%0,%2
ldu %3,%2(%0)"
(match_operand:DI 3 "gpc_reg_operand" "r,r"))
(set (match_operand:P 0 "gpc_reg_operand" "=b,b")
(plus:P (match_dup 1) (match_dup 2)))]
- "TARGET_POWERPC64 && TARGET_UPDATE"
+ "TARGET_POWERPC64 && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (Pmode)
+ || !gpc_reg_operand (operands[2], Pmode)
+ || (REG_P (operands[0])
+ && REGNO (operands[0]) == STACK_POINTER_REGNUM))"
"@
stdux %3,%0,%2
stdu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
{lux|lwzux} %3,%0,%2
{lu|lwzu} %3,%2(%0)"
(match_operand:DI 2 "gpc_reg_operand" "r")))))
(set (match_operand:DI 0 "gpc_reg_operand" "=b")
(plus:DI (match_dup 1) (match_dup 2)))]
- "TARGET_POWERPC64 && rs6000_gen_cell_microcode"
+ "TARGET_POWERPC64 && rs6000_gen_cell_microcode
+ && !avoiding_indexed_address_p (DImode)"
"lwaux %3,%0,%2"
[(set_attr "type" "load_ext_ux")])
(match_operand:SI 3 "gpc_reg_operand" "r,r"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode)
+ || (REG_P (operands[0])
+ && REGNO (operands[0]) == STACK_POINTER_REGNUM))"
"@
{stux|stwux} %3,%0,%2
{stu|stwu} %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lhzux %3,%0,%2
lhzu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I")))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lhzux %3,%0,%2
lhzu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I")))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE && rs6000_gen_cell_microcode"
+ "TARGET_UPDATE && rs6000_gen_cell_microcode
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lhaux %3,%0,%2
lhau %3,%2(%0)"
(match_operand:HI 3 "gpc_reg_operand" "r,r"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
sthux %3,%0,%2
sthu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lbzux %3,%0,%2
lbzu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I")))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lbzux %3,%0,%2
lbzu %3,%2(%0)"
(match_operand:QI 3 "gpc_reg_operand" "r,r"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_UPDATE"
+ "TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
stbux %3,%0,%2
stbu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_SINGLE_FLOAT && TARGET_UPDATE"
+ "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_SINGLE_FLOAT && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lfsux %3,%0,%2
lfsu %3,%2(%0)"
(match_operand:SF 3 "gpc_reg_operand" "f,f"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_SINGLE_FLOAT && TARGET_UPDATE"
+ "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_SINGLE_FLOAT && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
stfsux %3,%0,%2
stfsu %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "(TARGET_SOFT_FLOAT || !TARGET_FPRS) && TARGET_UPDATE"
+ "(TARGET_SOFT_FLOAT || !TARGET_FPRS) && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
{lux|lwzux} %3,%0,%2
{lu|lwzu} %3,%2(%0)"
(match_operand:SF 3 "gpc_reg_operand" "r,r"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "(TARGET_SOFT_FLOAT || !TARGET_FPRS) && TARGET_UPDATE"
+ "(TARGET_SOFT_FLOAT || !TARGET_FPRS) && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
{stux|stwux} %3,%0,%2
{stu|stwu} %3,%2(%0)"
(match_operand:SI 2 "reg_or_short_operand" "r,I"))))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && TARGET_UPDATE"
+ "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
lfdux %3,%0,%2
lfdu %3,%2(%0)"
(match_operand:DF 3 "gpc_reg_operand" "f,f"))
(set (match_operand:SI 0 "gpc_reg_operand" "=b,b")
(plus:SI (match_dup 1) (match_dup 2)))]
- "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && TARGET_UPDATE"
+ "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && TARGET_UPDATE
+ && (!avoiding_indexed_address_p (SImode)
+ || !gpc_reg_operand (operands[2], SImode))"
"@
stfdux %3,%0,%2
stfdu %3,%2(%0)"