bug or just an invalid commanline ?

[Nicholas Mc Guire <der dot herr at hofr dot at>]

Hi !

 during some compiler testing to determin the impact of individual flags
 on the layout of binaries I´ve been doing brute force iterations over
 flags and stubled accross the following "internal compiler error"

 This happens with:
  * gcc (Debian 4.7.2-5) 4.7.2 on Debian 7.6
  * gcc (Debian 4.9.2-10) 4.9.2 on Debian 8.1

hofrat@debian:~/Diversity/testing$ cat hello.c
#include <stdio.h>

int main(int argc, char **argv) {
        printf("hello, world\n");
        return 0;
}
hofrat@debian:~/Diversity/testing$ gcc -fshort-double hello.c -c -o hello.o
<built-in>:0:0: internal compiler error: in layout_type, at stor-layout.c:2121
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccbpCZZY.out file, please attach this to your bugreport.
 
 checking http://gcc.gnu.org/bugs.html#known it did not seem that this
 qualifies as one of the known FP Non-bugs.

 Should this be reported or is this just an absurd commanline here ?
 (all other single flags pass - some with legitimate warnings)

thx!
hofrat