From b363312940668bea45a0de0d48945758868109f7 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 1 Oct 2006 22:35:45 +0000
Subject: [PATCH] New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30683 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../Analysis/GlobalsModRef/indirect-global.ll | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 test/Analysis/GlobalsModRef/indirect-global.ll

diff --git a/test/Analysis/GlobalsModRef/indirect-global.ll b/test/Analysis/GlobalsModRef/indirect-global.ll
new file mode 100644
index 00000000000..206955eba75
--- /dev/null
+++ b/test/Analysis/GlobalsModRef/indirect-global.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | opt -globalsmodref-aa -load-vn -gcse -instcombine | llvm-dis | grep 'ret int 0'
+%G = internal global int* null
+
+implementation
+
+void %test() {
+	%A = malloc int
+	store int* %A, int** %G
+	ret void
+}
+
+int %test1(int *%P) {
+	%g1 = load int** %G
+	%h1 = load int* %g1
+
+	; This store cannot alias either G or g1.
+	store int 123, int* %P
+
+	%g2 = load int** %G
+	%h2 = load int* %g1
+	%X = sub int %h1, %h2   ;; -> 0
+	ret int %X
+}