From: Xi Ruoyao <xry111@xry111.site>
Date: Wed, 12 Jun 2024 03:01:53 +0000 (+0800)
Subject: LoongArch: Fix mode size comparision in loongarch_expand_conditional_move
X-Git-Tag: basepoints/gcc-16~8347
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53c703888eb51314f762c8998dc9215871b12722;p=thirdparty%2Fgcc.git

LoongArch: Fix mode size comparision in loongarch_expand_conditional_move

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.
---

diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
index 1b6df6a4365..6ec3ee62502 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -5352,7 +5352,7 @@ 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]));