[Bug target/117053] [15 Regression] ICE in extract_insn building glibc testsuite tst-svc2.c

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117053

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> The problem is in ix86_expand_int_spaceship 
> 
> here:
> +      emit_insn (gen_rtx_SET (tmp, gen_rtx_ZERO_EXTEND (GET_MODE (dest),
> +                                                       lt_tmp)));
> 
> Most likely should have used:
> emit_insn (gen_zero_extend<mode>si2 (tmp, lt_tmp))

No, it can't.  We can't clobber flags that need to be still used.