[Bug fortran/87689] Memory corruption on Power 8

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87689

--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
No, doesn't ring bells.  But I have some more input:

I couldn't get it to fail on powerpc64-linux.
It fails on powerpc64le-linux only if the second file is compiled with -O0.

As output I get just

$ ./87689 |xxd -g1
0000000: 20 20 20 20 20 20 20 20 20 20 20 31 20 20 20 20             1    
0000010: 20 20 20 20 20 20 20 32 20 20 20 20 20 20 20 20         2        
0000020: 20 20 20 33 20 20 20 20 20 20 20 20 20 20 20 34     3           4
0000030: 20 20 20 20 20 20 20 20 20 20 20 35 20 20 20 20             5    
0000040: 20 20 20 20 20 20 20 30 0a 20 00 0a 20 66 6f 6f         0. .. foo
0000050: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20                  
0000060: 20 0a

so no weird characters other than a zero byte.