We were comparing a mode size with word_mode, but word_mode is an enum
value thus this does not really make any sense.  (Un)luckily E_DImode
happens to be 8 so this seemed to work, but let's make it correct so it
won't blow up when we add LA32 support or add another machine mode...

gcc/ChangeLog:

        * config/loongarch/loongarch.cc
        (loongarch_expand_conditional_move): Compare mode size with
        UNITS_PER_WORD instead of word_mode.
---

I've not fully tested this but it should be obvious.  Ok for trunk?

 gcc/config/loongarch/loongarch.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/loongarch/loongarch.cc 
b/gcc/config/loongarch/loongarch.cc
index eb132f06c2e..bc3dd2b713e 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -5371,7 +5371,7 @@ loongarch_expand_conditional_move (rtx *operands)
     loongarch_emit_float_compare (&code, &op0, &op1);
   else
     {
-      if (GET_MODE_SIZE (GET_MODE (op0)) < word_mode)
+      if (GET_MODE_SIZE (GET_MODE (op0)) < UNITS_PER_WORD)
        {
          promote_op[0] = (REG_P (op0) && REG_P (operands[2]) &&
                           REGNO (op0) == REGNO (operands[2]));
-- 
2.45.2

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