Index: lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
===================================================================
--- lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -2612,6 +2612,22 @@
     if (match(Op0I, m_Xor(m_Value(A), m_Value(B))) &&
         match(Op1I, m_And(m_Specific(A), m_Specific(B))))
       return BinaryOperator::CreateOr(A, B);
+    // (A | (B ^ C)) ^ ((A ^ C) ^ B) -> A & (B ^ C)
+    if (match(Op0I, m_Or(m_Value(A), m_Xor(m_Value(B), m_Value(C)))) &&
+        match(Op1I, m_Xor(m_Xor(m_Specific(A), m_Specific(C)), m_Specific(B))))
+      return BinaryOperator::CreateAnd(A, Builder->CreateXor(B,C));
+    // ( (B ^ C) | A ) ^ ((A ^ C) ^ B) -> A & (B ^ C)
+    if (match(Op0I, m_Or(m_Xor(m_Value(B), m_Value(C)), m_Value(A))) &&
+        match(Op1I, m_Xor( m_Xor(m_Specific(A), m_Specific(C)), m_Specific(B))))
+      return BinaryOperator::CreateAnd(A, Builder->CreateXor(B,C));
+    // ((A ^ B) ^ C) ^ (A | (B ^ C))   -> A & (B ^ C)
+    if (match(Op0I, m_Xor(m_Xor(m_Value(A), m_Value(B)), m_Value(C))) &&
+        match(Op1I, m_Or(m_Specific(A), m_Xor(m_Specific(B), m_Specific(C)))))
+      return BinaryOperator::CreateAnd(A, Builder->CreateXor(B,C));
+    // ((A ^ B) ^ C) ^ (B ^ C) | A )) -> A & (B ^ C)
+    if (match(Op0I, m_Xor(m_Xor(m_Value(A), m_Value(B)), m_Value(C))) &&
+        match(Op1I, m_Or(m_Xor(m_Specific(B), m_Specific(C)), m_Specific(A))))
+      return BinaryOperator::CreateAnd(A, Builder->CreateXor(B,C));
   }
 
   // (A | B)^(~A) -> (A | ~B)
Index: test/Transforms/InstCombine/or-xor.ll
===================================================================
--- test/Transforms/InstCombine/or-xor.ll
+++ test/Transforms/InstCombine/or-xor.ll
@@ -181,3 +181,31 @@
   %xor = or i32 %and1, %and2
   ret i32 %xor
 }
+
+; (x | (y ^ z)) ^ ((x ^ z) ^ y) -> x & (y ^ z)
+define i32 @test19(i32 %x, i32 %y, i32 %z) {
+  %xor1 = xor i32 %y, %z
+  %or = or i32 %x, %xor1
+  %xor2 = xor i32 %x, %z
+  %xor3 = xor i32 %xor2, %y
+  %res = xor i32 %or, %xor3
+  ret i32 %res
+; CHECK-LABEL: @test19(
+; CHECK-NEXT: %1 = xor i32 %y, %z
+; CHECK-NEXT: %res = and i32 %1, %x
+; CHECK-NEXT: ret i32 %res
+}
+
+; ((x | ~y) ^ (~x ^ y)) -> (x & ~y)
+define i32 @test20(i32 %x, i32 %y) {
+  %noty = xor i32 %y, -1
+  %or = or i32 %x, %noty
+  %notx = xor i32 %x, -1
+  %xor = xor i32 %notx, %y
+  %res = xor i32 %or, %xor
+  ret i32 %res
+; CHECK-LABEL: @test20(
+; CHECK-NEXT: %1 = xor i32 %y, -1
+; CHECK-NEXT: %res = and i32 %x, %1
+; CHECK-NEXT: ret i32 %res
+}