New, smaller testcase

llvm-svn: 6980

llvm/test/Regression/Analysis/DSGraph/2003-06-29-NodeCollapsing2.ll

@@ -0,0 +1,18 @@
+; This is the same testcase as 2003-06-29-NodeCollapsing2.ll, but it uses the 
+; graph checker.
+;
+; RUN: analyze %s -datastructure-gc -dsgc-abort-if-any-collapsed
+;
+%T = type { int}
+
+int %main() {
+	%A = alloca %T
+	%B = alloca { %T }
+	%C = alloca %T*
+	%Bp = getelementptr { %T }* %B, long 0, ubyte 0
+	%Ap = getelementptr %T* %A, long 0, ubyte 0
+
+	store %T* %A, %T** %C
+	store %T* %Bp, %T** %C    ; This store was causing merging to happen!
+	ret int 0
+}