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 routines
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 say,
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 say,
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's internal basic
