http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56180
Bug #: 56180
Summary: Strange behaviour with optimization (using K&R C)
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: paulo_torr...@hotmail.com
I'm writing a piece of code that needs to be on old K&R C style, and found a
problem recently.
When using no optimization I get one behaviour, with -O1 I get another, and
with -O2 I get *yet another* behaviour. Both GCC and CLang show the same
behaviour (although GCC shows three "versions" of the results, and CLang shows
only two).
There is probably something I did wrong in the code itself, I got the part of
the program that showed the problem and placed it on a single test C file,
which still showed the problem... although probably is some logic error of
mine, the compiler shouldn't show different behaviours.
The source code [test.c]: http://pastebin.com/SS1JHH1n
The test file [test.psy]: http://pastebin.com/ejLqYaxH
I'm not sure what is the problem over here, so I decided to report. :)
