diff --git a/llvm/test/Transforms/InstCombine/or-xor-xor.ll b/llvm/test/Transforms/InstCombine/or-xor-xor.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/or-xor-xor.ll
@@ -0,0 +1,100 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes=instcombine -S | FileCheck %s
+
+declare void @use(i1)
+
+define i1 @or_xor_xor_normal_variant1(i1 %a, i1 %b) {
+; CHECK-LABEL: @or_xor_xor_normal_variant1(
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[XOR1:%.*]] = xor i1 [[AND]], [[A]]
+; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[AND]], [[B]]
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret i1 [[OR]]
+;
+  %and = and i1 %a, %b
+  %xor1 = xor i1 %and, %a
+  %xor2 = xor i1 %and, %b
+  %or = or i1 %xor1, %xor2
+  ret i1 %or
+}
+
+define i1 @or_xor_xor_normal_variant2(i1 %a, i1 %b) {
+; CHECK-LABEL: @or_xor_xor_normal_variant2(
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[XOR1:%.*]] = xor i1 [[AND]], [[B]]
+; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[AND]], [[A]]
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret i1 [[OR]]
+;
+  %and = and i1 %a, %b
+  %xor1 = xor i1 %and, %b
+  %xor2 = xor i1 %and, %a
+  %or = or i1 %xor1, %xor2
+  ret i1 %or
+}
+
+define <3 x i1> @or_xor_xor_normal_vector(<3 x i1> %a, <3 x i1> %b) {
+; CHECK-LABEL: @or_xor_xor_normal_vector(
+; CHECK-NEXT:    [[AND:%.*]] = and <3 x i1> [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[XOR1:%.*]] = xor <3 x i1> [[AND]], [[B]]
+; CHECK-NEXT:    [[XOR2:%.*]] = xor <3 x i1> [[AND]], [[A]]
+; CHECK-NEXT:    [[OR:%.*]] = or <3 x i1> [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret <3 x i1> [[OR]]
+;
+  %and = and <3 x i1> %a, %b
+  %xor1 = xor <3 x i1> %and, %b
+  %xor2 = xor <3 x i1> %and, %a
+  %or = or <3 x i1> %xor1, %xor2
+  ret <3 x i1> %or
+}
+
+define i1 @or_xor_xor_normal_multiple_uses_and(i1 %a, i1 %b) {
+; CHECK-LABEL: @or_xor_xor_normal_multiple_uses_and(
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    call void @use(i1 [[AND]])
+; CHECK-NEXT:    [[XOR1:%.*]] = xor i1 [[AND]], [[B]]
+; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[AND]], [[A]]
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret i1 [[OR]]
+;
+  %and = and i1 %a, %b
+  call void @use(i1 %and)
+  %xor1 = xor i1 %and, %b
+  %xor2 = xor i1 %and, %a
+  %or = or i1 %xor1, %xor2
+  ret i1 %or
+}
+
+define i1 @or_xor_xor_negative_multiple_uses_xor1(i1 %a, i1 %b) {
+; CHECK-LABEL: @or_xor_xor_negative_multiple_uses_xor1(
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[XOR1:%.*]] = xor i1 [[AND]], [[B]]
+; CHECK-NEXT:    call void @use(i1 [[XOR1]])
+; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[AND]], [[A]]
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret i1 [[OR]]
+;
+  %and = and i1 %a, %b
+  %xor1 = xor i1 %and, %b
+  call void @use(i1 %xor1)
+  %xor2 = xor i1 %and, %a
+  %or = or i1 %xor1, %xor2
+  ret i1 %or
+}
+
+define i1 @or_xor_xor_negative_multiple_uses_xor2(i1 %a, i1 %b) {
+; CHECK-LABEL: @or_xor_xor_negative_multiple_uses_xor2(
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[XOR1:%.*]] = xor i1 [[AND]], [[B]]
+; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[AND]], [[A]]
+; CHECK-NEXT:    call void @use(i1 [[XOR2]])
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR1]], [[XOR2]]
+; CHECK-NEXT:    ret i1 [[OR]]
+;
+  %and = and i1 %a, %b
+  %xor1 = xor i1 %and, %b
+  %xor2 = xor i1 %and, %a
+  call void @use(i1 %xor2)
+  %or = or i1 %xor1, %xor2
+  ret i1 %or
+}