From: Chris Lattner <sabre@nondot.org>
Date: Tue, 4 Nov 2003 23:21:22 +0000 (+0000)
Subject: New testcase for masking operation that frequently occurs in the pool allocator
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f61641f7d4bf69e3df7c455d6afcd9c47b4c2cbb;p=oota-llvm.git

New testcase for masking operation that frequently occurs in the pool allocator
for converting a number that is a power of two into a mask


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9706 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/xor.ll b/test/Transforms/InstCombine/xor.ll
index 6082e0c9a1b..0e6550c2333 100644
--- a/test/Transforms/InstCombine/xor.ll
+++ b/test/Transforms/InstCombine/xor.ll
@@ -98,3 +98,9 @@ bool %test14(ubyte %A, ubyte %B) {
 	%E = xor bool %C, %D        ; E = true
 	ret bool %E
 }
+
+uint %test15(uint %A) {             ; ~(X-1) == -X
+	%B = add uint %A, 4294967295
+	%C = xor uint %B, 4294967295
+	ret uint %C
+}