[Bug bootstrap/79069] [7 Regression] Bootstrap failure on s390x-linux while building libgo

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Maybe the easiest fix would be to emit the __morestack magic call patterns as
ASM_OPERANDS like one that is emitted for asm goto.  The cfgrtl.c etc. code has
already years of fixes to handle those calls and deal with degenerate calls
etc.