1 files changed, 27 insertions, 0 deletions
diff --git a/test/FrontendC/2010-07-14-ref-off-end.c b/test/FrontendC/2010-07-14-ref-off-end.c
new file mode 100644
index 0000000000..6ccd05b770
--- /dev/null
+++ b/test/FrontendC/2010-07-14-ref-off-end.c
@@ -0,0 +1,27 @@
+// RUN: %llvmgcc %s -S -m32 -o - | FileCheck %s
+// Formerly this generated code that did a load past the end of the structure.
+// That was fixed by 46726, but that patch had bad side effects and was
+// reverted.  This has been fixed another way in the meantime.
+extern void abort();
+extern void exit(int);
+struct T
+{
+unsigned i:8;
+unsigned c:24;
+};
+f(struct T t)
+{
+struct T s[1];
+s[0]=t;
+return(char)s->c;
+}
+main()
+{
+// CHECK:  getelementptr inbounds %struct.T* %t, i32 0, i32 0 ; <i32*> [#uses=2]
+// CHECK:  getelementptr inbounds %struct.T* %t, i32 0, i32 0 ; <i32*> [#uses=2]
+struct T t;
+t.i=0xff;
+t.c=0xffff11;
+if(f(t)!=0x11)abort();
+exit(0);
+}