[Bug target/97715] [11 Regression] ICE in insn_default_length, at config/i386/i386.md:15325 since r11-4578-gd10f3e900b0377b4

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97715

--- Comment #1 from qinzhao at gcc dot gnu.org ---
for -fzero-call-used-regs=all, when zeroing st/mm registers under x87 exit
mode, However, command line option force no 80387 mode, the following insn
generated to zero st registers is not recognized:

(insn 27 67 28 2 (set (reg:XF 8 st)
        (const_double:XF 0.0 [0x0.0p+0])) "zero-scratch-regs-10.c":8:1 -1
     (nil))