From 08d8ec0648daaf9a80e6a734630cec3c877377b3 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Mon, 16 Jul 2012 23:43:03 +0200
Subject: [PATCH] x86/x64: Fix fusion of unsigned byte comparisons with swapped
 ops.

---
 src/lj_asm_x86.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lj_asm_x86.h b/src/lj_asm_x86.h
index 86dc7af2..c68768b4 100644
--- a/src/lj_asm_x86.h
+++ b/src/lj_asm_x86.h
@@ -2067,8 +2067,8 @@ static void asm_comp(ASMState *as, IRIns *ir, uint32_t cc)
     lua_assert(irt_is64(ir->t) || irt_isint(ir->t) || irt_isaddr(ir->t));
     /* Swap constants (only for ABC) and fusable loads to the right. */
     if (irref_isk(lref) || (!irref_isk(rref) && opisfusableload(leftop))) {
-      if ((cc & 0xc) == 0xc) cc ^= 3;  /* L <-> G, LE <-> GE */
-      else if ((cc & 0xa) == 0x2) cc ^= 5;  /* A <-> B, AE <-> BE */
+      if ((cc & 0xc) == 0xc) cc ^= 0x53;  /* L <-> G, LE <-> GE */
+      else if ((cc & 0xa) == 0x2) cc ^= 0x55;  /* A <-> B, AE <-> BE */
       lref = ir->op2; rref = ir->op1;
     }
     if (asm_isk32(as, rref, &imm)) {