New testcase, an automatized version of Vikrams ggcollapse.c file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7331 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/DSGraph/2003-07-16-ConstantExprCollapse.ll b/test/Analysis/DSGraph/2003-07-16-ConstantExprCollapse.ll
new file mode 100644 (file)
index 0000000..54e640a
--- /dev/null
+++ b/test/Analysis/DSGraph/2003-07-16-ConstantExprCollapse.ll
@@ -0,0 +1,15 @@
+; This should cause the global node to collapse!!
+;
+; RUN: analyze %s -datastructure-gc --dsgc-check-flags=test:GAU
+
+%Tree = type { int, %Tree*, %Tree* }
+%T5 = external global %Tree
+
+implementation   ; Functions:
+
+void %makeMore(%Tree** %X) {
+       store %Tree* cast (long add (long cast (%Tree* %T5 to long), long 5) to %Tree*), %Tree** %X
+       %test = load %Tree** %X
+       ret void
+}
+