https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69552
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, there's no linker output so we use whatever else. We could try falling
back to a.out.
Similarly without LTO -save-temps overwrites files if you do
gcc t.c t.C
both assembly and linker files will be t.s/t.o and the link will even fail.
t.c
---
int main() { foo();}
t.C
---
extern "C" int foo () {}
so hardly a new issue with -save-temps - you need to know what you are doing.
