Re: O0 cleanup_cfg vs debuggability

[Olivier Hainque <hainque at act-europe dot fr>]

Hello James,

Regarding a breakpoint on "break;" not hit, you suggested:

> In gcc-3.4, I think you can solve this by redefining what a forwarder 
> block is, or how we handle them.  See forwarder_block_p in cfganal.c. 
[...]

 I have experimented the first alternative, preventing a block from beeing
 flagged as a forwarded if it contains a line number note and we're not
 optimizing.
 
 It unfortunately has a consequence which seems undesireable to me: we get
 different code depending on whether -g is provided or not.

 Is that indeed a valid concern ?

 Thanks in advance,

 Olivier