New, smaller testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6980 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/DSGraph/2003-06-29-NodeCollapsing2.ll b/test/Analysis/DSGraph/2003-06-29-NodeCollapsing2.ll
new file mode 100644 (file)
index 0000000..99aae03
--- /dev/null
+++ b/test/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
+}