From 0cec701eb2b56b4784990d3d84eb75596af683ec Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Mon, 10 Mar 2003 23:13:32 +0000 Subject: Add test for demorgans law with constants Add test for other form of demorgans git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5737 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/not.ll | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'test/Transforms/InstCombine/not.ll') diff --git a/test/Transforms/InstCombine/not.ll b/test/Transforms/InstCombine/not.ll index 57560d61d6..24d8f69a4b 100644 --- a/test/Transforms/InstCombine/not.ll +++ b/test/Transforms/InstCombine/not.ll @@ -29,3 +29,20 @@ int %test3(int %A, int %B) { %d = xor int %c, -1 ret int %d } + +; Test that demorgens law can work with constants +int %test4(int %A, int %B) { + %a = xor int %A, -1 + %c = and int %a, 5 ; 5 = ~c2 + %d = xor int %c, -1 + ret int %d +} + +; test the mirror of demorgans law... +int %test5(int %A, int %B) { + %a = xor int %A, -1 + %b = xor int %B, -1 + %c = or int %a, %b + %d = xor int %c, -1 + ret int %d +} -- cgit v1.2.3