From bea6a86893b8555d5fd1decc282096356eba0bfb Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Sat, 26 Dec 2020 23:57:07 +0000
Subject: [PATCH] Jit_Integer: Add trivial AndWithMask cases

Add cases to handle all one and all zero masks.
---
 Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp
index 74362c12c1..b0a9cf4cf1 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp
@@ -194,7 +194,12 @@ void Jit64::ComputeRC(preg_t preg, bool needs_test, bool needs_sext)
 // flags.
 void Jit64::AndWithMask(X64Reg reg, u32 mask)
 {
-  if (mask == 0xff)
+  if (mask == 0xffffffff)
+    return;
+
+  if (mask == 0)
+    XOR(32, R(reg), R(reg));
+  else if (mask == 0xff)
     MOVZX(32, 8, reg, R(reg));
   else if (mask == 0xffff)
     MOVZX(32, 16, reg, R(reg));