On Fri, Sep 02, 2016 at 09:40:36AM -0400, Eric Gallager wrote:
> --- a/gcc/combine.c
> +++ b/gcc/combine.c
> @@ -1122,7 +1122,7 @@ static int
> combine_instructions (rtx_insn *f, unsigned int nregs)
> {
> rtx_insn *insn, *next;
> - rtx_insn *prev;
> + rtx_insn *prev = NULL;
> struct insn_link *links, *nextlinks;
> rtx_insn *first;
> basic_block last_bb;I don't see any place "prev" is used witout an immediately preceding assignment to it. Could you show the warning you see please? Segher
