New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6978 91177308-0d34-0410-b5e6-96231b3b80d8

test/Analysis/DSGraph/2003-06-29-NodeCollapsing.ll

@@ -0,0 +1,24 @@
+; RUN: as < %s | opt -no-aa -ds-aa -load-vn -gcse | dis | not grep load
+%T = type { int*, int* }
+
+int %main() {
+	%A = alloca %T
+	%B = alloca { %T }
+	%C = alloca %T*
+	%Bp = getelementptr { %T }* %B, long 0, ubyte 0
+
+	%i0 = alloca int
+	%i1 = alloca int
+	%Ap0 = getelementptr %T* %A, long 0, ubyte 0
+	%Ap1 = getelementptr %T* %A, long 0, ubyte 1
+	store int* %i0, int** %Ap0
+	store int* %i1, int** %Ap1
+
+	store int 0, int* %i0
+	store int 1, int* %i1
+	%RetVal = load int* %i0   ; This load should be deletable
+
+	store %T* %A, %T** %C
+	store %T* %Bp, %T** %C    ; This store was causing merging to happen!
+	ret int %RetVal
+}