@@ -17341,12 +17341,12 @@ rs6000_expand_atomic_compare_and_swap (rtx operands[])
/* Shift and mask OLDVAL into position with the word. */
oldval = convert_modes (SImode, mode, oldval, 1);
oldval = expand_simple_binop (SImode, ASHIFT, oldval, shift,
- oldval, 1, OPTAB_LIB_WIDEN);
+ NULL_RTX, 1, OPTAB_LIB_WIDEN);
/* Shift and mask NEWVAL into position within the word. */
newval = convert_modes (SImode, mode, newval, 1);
newval = expand_simple_binop (SImode, ASHIFT, newval, shift,
- newval, 1, OPTAB_LIB_WIDEN);
+ NULL_RTX, 1, OPTAB_LIB_WIDEN);
/* Prepare to adjust the return value. */
retval = gen_reg_rtx (SImode);
@@ -17434,7 +17434,7 @@ rs6000_expand_atomic_exchange (rtx operands[])
/* Shift and mask VAL into position with the word. */
val = convert_modes (SImode, mode, val, 1);
val = expand_simple_binop (SImode, ASHIFT, val, shift,
- val, 1, OPTAB_LIB_WIDEN);
+ NULL_RTX, 1, OPTAB_LIB_WIDEN);
/* Prepare to adjust the return value. */
retval = gen_reg_rtx (SImode);
@@ -17487,7 +17487,7 @@ rs6000_expand_atomic_op (enum rtx_code code, rtx mem, rtx val,
/* Shift and mask VAL into position with the word. */
val = convert_modes (SImode, mode, val, 1);
val = expand_simple_binop (SImode, ASHIFT, val, shift,
- val, 1, OPTAB_LIB_WIDEN);
+ NULL_RTX, 1, OPTAB_LIB_WIDEN);
switch (code)
{