From ab2dd54aded5f641fd09db8ca734eb95d0dff3e6 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sat, 15 Mar 2014 00:49:18 -0700
Subject: [PATCH] armjit: Skip an AND for rotate shifts.

---
 Core/MIPS/ARM/ArmCompALU.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Core/MIPS/ARM/ArmCompALU.cpp b/Core/MIPS/ARM/ArmCompALU.cpp
index 50a709622c..18e0366ce7 100644
--- a/Core/MIPS/ARM/ArmCompALU.cpp
+++ b/Core/MIPS/ARM/ArmCompALU.cpp
@@ -488,7 +488,9 @@ namespace MIPSComp
 			return;
 		}
 		gpr.MapDirtyInIn(rd, rs, rt);
-		AND(R0, gpr.R(rs), Operand2(0x1F));
+		// A rotate will be the same even if >= 32.
+		if (shiftType != ST_ROR)
+			AND(R0, gpr.R(rs), Operand2(0x1F));
 		MOV(gpr.R(rd), Operand2(gpr.R(rt), shiftType, R0));
 	}