Test that demorgan's law is instcombined successfully

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3494 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/not.ll b/test/Transforms/InstCombine/not.ll
index 8bc858664999f3ddd0a1c88acccbe1ac9bdcbe5f..57560d61d6d5bfee73ffba229ce06feae9e5839d 100644 (file)
--- a/test/Transforms/InstCombine/not.ll
+++ b/test/Transforms/InstCombine/not.ll
@@ -19,3 +19,13 @@ bool %test2(int %A, int %B) {
        %Ret = xor bool %cond, true
        ret bool %Ret
 }
+
+
+; Test that demorgans law can be instcombined
+int %test3(int %A, int %B) {
+       %a = xor int %A, -1
+       %b = xor int %B, -1
+       %c = and int %a, %b
+       %d = xor int %c, -1
+       ret int %d
+}