Forgot to check this in a long time ago

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1872 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 35 insertions, 0 deletions

diff --git a/test/CFrontend/2002-02-14-EntryNodePreds.c b/test/CFrontend/2002-02-14-EntryNodePreds.c
new file mode 100644
index 0000000..8b6f4e0
--- /dev/null
+++ b/test/CFrontend/2002-02-14-EntryNodePreds.c
@@ -0,0 +1,35 @@
+/* GCC Used to generate code that contained a branch to the entry node of 
+ * the do_merge function.  This is illegal LLVM code.  To fix this, GCC now
+ * inserts an entry node regardless of whether or not it has to insert allocas.
+ */
+
+struct edge_rec
+{
+  struct VERTEX *v;
+  struct edge_rec *next;
+  int wasseen;
+  int more_data;
+};
+
+typedef struct edge_rec *QUAD_EDGE;
+
+typedef struct {
+  QUAD_EDGE left, right;
+} EDGE_PAIR;
+
+struct EDGE_STACK {
+    int ptr;
+    QUAD_EDGE *elts;
+    int stack_size;
+};
+
+int do_merge(QUAD_EDGE ldo, QUAD_EDGE rdo) {
+  int lvalid;
+  QUAD_EDGE basel,rcand;
+  while (1) {
+    if (!lvalid) {
+      return (int)basel->next;
+    }
+  }
+}
+