From: Chris Lattner <sabre@nondot.org>
Date: Fri, 26 Nov 2004 19:19:28 +0000 (+0000)
Subject: new testcase basicaa should handle
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=4e4f7312e00fe9346e54b40d0fc56533ad713f00;p=oota-llvm.git

new testcase basicaa should handle


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18260 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Analysis/BasicAA/global-size.ll b/test/Analysis/BasicAA/global-size.ll
new file mode 100644
index 00000000000..52ea7bc7b0e
--- /dev/null
+++ b/test/Analysis/BasicAA/global-size.ll
@@ -0,0 +1,17 @@
+; A store or load cannot alias a global if the accessed amount is larger then
+; the global.
+
+; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | not grep load
+
+%B = global short 8
+
+implementation
+
+short %test(int *%P) {
+	%X = load short* %B
+	store int 7, int* %P
+	%Y = load short* %B
+	%Z = sub short %Y, %X
+	ret short %Z
+}
+