[Bug target/115169] [14 regression] ICE in loongarch bootstrap with checking: RTL check: expected code 'reg', have 'const_int' in rhs_regno, at rtl.h:1934

[matoro_gcc_bugzilla at matoro dot tk via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115169

--- Comment #4 from matoro <matoro_gcc_bugzilla at matoro dot tk> ---
Minimized:

int __mulvti3_uu_0, __mulvti3_vv_0_1, __mulvti3_w0_1;
int __mulvti3() {
  if (__builtin_expect(__mulvti3_uu_0, 1)) {
    int w1_0_1;
    if (__mulvti3_vv_0_1)
      w1_0_1 -= __mulvti3_uu_0;
    if (__builtin_expect(w1_0_1, 1))
      return __mulvti3_w0_1;
  }
}