https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105032
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2022-03-23 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 CC| |jakub at gcc dot gnu.org, | |vmakarov at gcc dot gnu.org --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- This has been hanging or ICEing on and off since forever. E.g. even r105000 ICEs, r200000 works, r210000 ICEs, r10-5912 works, r11-1 hangs, so does current trunk. The first revision after r10-5912 to start hanging was r10-6326-gbcf3fa7cf5a3d024b507. Note, without optimizations, the inline asm is on or beyond the border what can be handled, it uses 6 of the 8 GPRs the arch has, the further two are the stack pointer and when not optimizing or if frame pointer is for whatever reason needed frame pointer. The asm also has a memory input. So, it fully depends on optimization (which isn't done with -O0 generally) that the address of the _arg6 variable can be expressed as offset(%esp) or offset(%ebp). If it is not (and -O0 asks for no optimizations), then there are no registers left how to describe the input.