1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/apint-and-xor-merge.ll b/test/Transforms/InstCombine/apint-and-xor-merge.ll
new file mode 100644
index 0000000000..d2265ed4b6
--- /dev/null
+++ b/test/Transforms/InstCombine/apint-and-xor-merge.ll
@@ -0,0 +1,22 @@
+; This test case checks that the merge of and/xor can work on arbitrary
+; precision integers.
+
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep and | wc -l | grep 1 &&
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep xor | wc -l | grep 2
+
+; (x &z ) ^ (y & z) -> (x ^ y) & z
+define i57 @test1(i57 %x, i57 %y, i57 %z) {
+        %tmp3 = and i57 %z, %x
+        %tmp6 = and i57 %z, %y
+        %tmp7 = xor i57 %tmp3, %tmp6
+        ret i57 %tmp7
+}
+
+; (x & y) ^ (x | y) -> x ^ y
+define i23 @test2(i23 %x, i23 %y, i23 %z) {
+        %tmp3 = and i23 %y, %x
+        %tmp6 = or i23 %y, %x
+        %tmp7 = xor i23 %tmp3, %tmp6
+        ret i23 %tmp7
+}
+