New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6900 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/Mem2Reg/2003-06-26-IterativePromote.ll b/test/Transforms/Mem2Reg/2003-06-26-IterativePromote.ll
new file mode 100644 (file)
index 0000000..6114538
--- /dev/null
+++ b/test/Transforms/Mem2Reg/2003-06-26-IterativePromote.ll
@@ -0,0 +1,19 @@
+; Promoting some values allows promotion of other values.
+; RUN: if as < %s | opt -mem2reg | dis | grep alloca
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+int %test2() {
+        %result = alloca int             ; ty=int*
+        %a = alloca int          ; ty=int*
+        %p = alloca int*                 ; ty=int**
+        store int 0, int* %a
+        store int* %a, int** %p
+        %tmp.0 = load int** %p           ; ty=int*
+        %tmp.1 = load int* %tmp.0                ; ty=int
+        store int %tmp.1, int* %result
+        %tmp.2 = load int* %result               ; ty=int
+        ret int %tmp.2
+}
+