From f28a42c9239142441bf3e3149f5d76efab71aac2 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Wed, 28 Apr 2010 22:00:40 +0200
Subject: Fix PHI elimination: mark right PHI as used, too.

---
 src/lj_opt_loop.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/lj_opt_loop.c b/src/lj_opt_loop.c
index e0e6990e..48207dd5 100644
--- a/src/lj_opt_loop.c
+++ b/src/lj_opt_loop.c
@@ -133,7 +133,11 @@ static void loop_emit_phi(jit_State *J, IRRef1 *subst, IRRef1 *phi, IRRef nphi)
     while (!irref_isk(ref) && ref != subst[ref]) {
       IRIns *ir = IR(ref);
       irt_clearmark(ir->t);  /* Unmark potential uses, too. */
-      if (irt_isphi(ir->t) || irt_ispri(ir->t))
+      if (irt_isphi(ir->t)) {
+	irt_clearmark(IR(subst[ref])->t);
+	break;
+      }
+      if (irt_ispri(ir->t))
 	break;
       irt_setphi(ir->t);
       if (nphi >= LJ_MAX_PHI)
-- 
cgit v1.2.3-55-g6feb