[Bug middle-end/116896] codegen for <=> compared to hand-written equivalent

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116896

--- Comment #28 from Uroš Bizjak <ubizjak at gmail dot com> ---
Comment on attachment 59275
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59275
gcc15-pr116896.patch

>+  rtx zero = NULL_RTX;
>+  if (op2 != const0_rtx && TARGET_IEEE_FP && GET_MODE (dest) == SImode)
>+    {
>+      zero = gen_reg_rtx (SImode);
>+      emit_move_insn (zero, const0_rtx);
>+    }

zero = force_reg (SImode, const0_rtx);