New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17665 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/IPConstantProp/recursion.ll b/test/Transforms/IPConstantProp/recursion.ll
new file mode 100644 (file)
index 0000000..ac36eab
--- /dev/null
+++ b/test/Transforms/IPConstantProp/recursion.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | opt -ipconstprop -deadargelim | llvm-dis | not grep %X
+
+implementation
+
+internal int %foo(int %X) {
+        %Y = call int %foo( int %X )
+        %Z = add int %Y, 1
+        ret int %Z
+}
+
+void %bar() {
+        call int %foo( int 17 )         ; <int>:0 [#uses=0]
+        ret void
+}