From 97882e8d32fd99e1edaf5361bfd3b6852dbb1a3d Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Wed, 10 Dec 2025 21:16:54 +0100
Subject: parallel move; implement reg<->stack swp

---
 amd64/emit.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'amd64/emit.c')

diff --git a/amd64/emit.c b/amd64/emit.c
index 8f29cfc..e7dd724 100644
--- a/amd64/emit.c
+++ b/amd64/emit.c
@@ -529,7 +529,8 @@ DEFINSTR2(Xmovaps,
 )
 DEFINSTR2(Xxchg,
    {4|8, PGPR, PGPR, "\x87", EN_RR}, /* XCHG r32/64, r32/64 */
-   //{4|8, PGPR, PMEM, "\x87", EN_RM}, /* XCHG r32/64, m32/64 */
+   {4|8, PGPR, PMEM, "\x87", EN_RM}, /* XCHG r32/64, m32/64 */
+   {4|8, PMEM, PGPR, "\x87", EN_MR}, /* XCHG r32/64, m32/64 */
 )
 DEFINSTR2(Xlea,
    {4|8, PGPR, PMEM, "\x8D", EN_RM}, /* LEA r32/64,m32/64 */
@@ -1146,7 +1147,7 @@ emitinstr(uchar **pcode, struct function *fn, struct block *blk, int curi, struc
       break;
    case Oswap:
       if (kisint(cls))
-         Xxchg(pcode, cls, mkregoper(ins->l), mkregoper(ins->r));
+         Xxchg(pcode, cls, ref2oper(ins->l), mkregoper(ins->r));
       else {
          struct oper l = mkregoper(ins->l), r = mkregoper(ins->r);
          Xxor(pcode, cls, l, r);
-- 
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