gcc 3.0.1 generates bad code

[Kenneth Gole]

Hello,

I'm using gcc 3.0.1 on i686 Linux (Redhat 6.2). Compile the attached
program, and it will segfault on line 20. This code compiles and works fine
on AIX, Solaris, HP, and earlier versions of gcc. We suspect that the
compier is making assumptions about "p->i" before a function call that sets
"p" as a side-effect. We can work around this by creating a temporary
integer variable to receive the return value from createp( ) and then
assign the temp to p->i, but we're concerned that this segfault might be
indicative of a deeper compiler problem. Let me know if you need any
further information from me. Thanks!

gcc -v output:

Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.0.1/specs
Configured with: ./configure --enable-shared --enable-languages=c++,java
--enable-threads=posix
Thread model: posix
gcc version 3.0.1

(See attached file: bad.c)

Ken Gole             T/L: 855-2344     Phone: (607)755-2344
email:  KenGole@us.ibm.com        Internal:  KenGole@ibmusm10
Lotus Notes ID:   Kenneth Gole/Endicott/IBM @ IBMUS
bad.c

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