On 19:18 Mon 10 Nov , Zhang Le wrote: > However, now I think adding a earlyclobber constraint may be the way to go. > Since it is a less intrusive and more elegant (comparing with my patch above) > change.
This solution is as easy as adding two bytes (two &s's) to the original patch: @@ -11,7 +11,7 @@ Index: trunk/gcc/config/mips/loongson.md +;;new integer instructions + +(define_insn "<u>div<mode>3" -+ [(set (match_operand:GPR 0 "register_operand" "=d") ++ [(set (match_operand:GPR 0 "register_operand" "=&d") + (any_div:GPR + (match_operand:GPR 1 "register_operand" "d") + (match_operand:GPR 2 "register_operand" "d")))] @@ -22,7 +22,7 @@ Index: trunk/gcc/config/mips/loongson.md +) + +(define_insn "<u>mod<mode>3" -+ [(set (match_operand:GPR 0 "register_operand" "=d") ++ [(set (match_operand:GPR 0 "register_operand" "=&d") + (any_mod:GPR + (match_operand:GPR 1 "register_operand" "d") + (match_operand:GPR 2 "register_operand" "d")))] Zhang, Le
