From 21d670927112ff6047a9a8f56a864a0c778b1956 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Wed, 27 Jan 2010 22:09:43 +0100
Subject: Avoid reuse of PHI registers, even for duplicate right PHIs.

---
 src/lj_asm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/lj_asm.c b/src/lj_asm.c
index 48b6ec5a..4f5610b0 100644
--- a/src/lj_asm.c
+++ b/src/lj_asm.c
@@ -2655,7 +2655,7 @@ static void asm_phi_fixup(ASMState *as)
 /* Setup right PHI reference. */
 static void asm_phi(ASMState *as, IRIns *ir)
 {
-  RegSet allow = irt_isnum(ir->t) ? RSET_FPR : RSET_GPR;
+  RegSet allow = (irt_isnum(ir->t) ? RSET_FPR : RSET_GPR) & ~as->phiset;
   RegSet afree = (as->freeset & allow);
   IRIns *irl = IR(ir->op1);
   IRIns *irr = IR(ir->op2);
-- 
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