rewrite some of the type refinement code to eliminate dangling pointers

simplify the code and generally make it more robust.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46745 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 0 deletions

diff --git a/test/CodeGen/types.c b/test/CodeGen/types.c
new file mode 100644
index 0000000000..01286e8962
--- /dev/null
+++ b/test/CodeGen/types.c
@@ -0,0 +1,16 @@
+// RUN: clang -emit-llvm %s
+
+struct FileName {
+    struct FileName *next;
+} *fnhead;
+
+
+struct ieeeExternal {
+    struct ieeeExternal *next;
+} *exthead;
+
+
+void f()
+{
+    struct ieeeExternal *exttmp = exthead;
+}