From 1abf5d4d26e83573d273e0f183f195cb2fd89bb6 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Thu, 3 Feb 2011 20:10:13 +0100
Subject: [PATCH] FFI: Disable MUL => BSHL FOLD rule on 32 bit.

---
 src/lj_opt_fold.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lj_opt_fold.c b/src/lj_opt_fold.c
index 28758013..9675fca2 100644
--- a/src/lj_opt_fold.c
+++ b/src/lj_opt_fold.c
@@ -1049,8 +1049,11 @@ LJFOLDF(simplify_intmul_k64)
 {
   if (ir_kint64(fright)->u64 == 0)  /* i * 0 ==> 0 */
     return INT64FOLD(0);
+#if LJ_64
+  /* NYI: SPLIT for BSHL and 32 bit backend support. */
   else if (ir_kint64(fright)->u64 < 0x80000000u)
     return simplify_intmul_k(J, (int32_t)ir_kint64(fright)->u64);
+#endif
   return NEXTFOLD;
 }