[Bug tree-optimization/116166] risc-v (last) insn-emit-nn.c build takes hours

[schwab--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116166

--- Comment #11 from Andreas Schwab <sch...@linux-m68k.org> ---
You can add target-specific flags like this:

$(INSNEMIT_SEQ_O): ALL_COMPILERFLAGS += -fno-tree-dominator-opts