Hi, I was trying to split the sub instructuction into 2 16bit process and came across this error: error: could not split insn using gdb i was able to trace the error to the below in try_split (rtx pat, rtx trial, int last) function: /* We're not good at redistributing frame information. */ if (RTX_FRAME_RELATED_P (trial)) return trial; my question is is there any reason that frame insn cannot be split ? and how do I fix it ? Thanks. -- View this message in context: http://gcc.1065356.n5.nabble.com/error-could-not-split-insn-tp1205787.html Sent from the gcc - Help mailing list archive at Nabble.com.