Re: Mainline Regression in gcc.target/i386/pr32268.c

["Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>]

From: "Richard Guenther" <richard.guenther@gmail.com>

> > You can trigger the bug in a regular pass by applying the following
> > noinline patch to the testcase.  Thoughts?
>
> How does it break?  It works for me with noinline and with -fPIC.
> Richard.

I'm running with mainline revision 132367 on x86_64-unknown-linux-gnu (i.e. 
lp64, not ilp32).  When I run the failing testcase under gdb I get:

(gdb) run
Starting program: /tmp/kg/build/gcc/testsuite/gcc/pr32268.exe

Program received signal SIGABRT, Aborted.
0x00002b2ae231d07b in raise () from /lib/libc.so.6
(gdb) up
#1  0x00002b2ae231e84e in abort () from /lib/libc.so.6
(gdb) up
#2  0x0000000000400575 in main () at 
/tmp/kg/egcc-SVN20080216/gcc/testsuite/gcc.target/i386/pr32268.c:32
32          abort();
(gdb) list
27        if (r != ((double) a < (double) b))
28          abort();
29
30        r = test_gt (a, b);
31        if (r != ((double) a > (double) b))
32          abort();
33
34        return 0;
35      }
(gdb) p a
$1 = 0
(gdb) p b
$2 = 0


"b" should be 1.0.

       --Kaveh
--
Kaveh R. Ghazi