Hello,
> >> If we compile this by "#gcc -c -O -da demo.c, we can see there are only
> >> three BBs. Actually, BB1 is a self-looped basic block. But this loop
> >> information is not explicitly expressed.
> >>
> >
> >What do you mean "not explicitly expressed".
> >
> >If you call the loop finding r
From: Daniel Berlin <[EMAIL PROTECTED]>
To: sean yang <[EMAIL PROTECTED]>
CC: gcc@gcc.gnu.org, [EMAIL PROTECTED]
Subject: Re: identifying a BB representing a self-loop
Date: Fri, 19 May 2006 15:41:30 -0400
sean yang wrote:
> Some basic blocks may represent a (self) loop, but GCC&#
sean yang wrote:
> Some basic blocks may represent a (self) loop, but GCC's internal basic
> block representation won't show such information explicitly (i.e., it won't
> store a self-loop edge).
> My question is, when I walk through basic blocks, can I identify then
> easily?
>
> E.g., Let's s
