--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Analysis/exploded-graph-rewriter/macros.c	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,18 @@
+// FIXME: Figure out how to use %clang_analyze_cc1 with our lit.local.cfg.
+// RUN: %clang_cc1 -analyze -triple x86_64-unknown-linux-gnu \
+// RUN:                     -analyzer-checker=core \
+// RUN:                     -analyzer-dump-egraph=%t.dot %s
+// RUN: %exploded_graph_rewriter %t.dot | FileCheck %s
+// REQUIRES: asserts
+
+// FIXME: Substitution doesn't seem to work on Windows.
+// UNSUPPORTED: system-windows
+
+// CHECK: macros.c:<b>17</b>:<b>10</b>
+// CHECK-SAME: <font color="royalblue1">
+// CHECK-SAME:   (<i>spelling at </i> macros.c:<b>15</b>:<b>14</b>)
+// CHECK-SAME: </font>
+#define NULL 0
+void *foo() {
+  return NULL;
+}