From 2ae0ed4674bae395405233c31c748f67173610ac Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 30 Apr 2019 16:47:06 -0400
Subject: [PATCH] add large array growth test

---
 test/Makefile             |  3 ++-
 test/large_array_growth.c | 17 +++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 test/large_array_growth.c

diff --git a/test/Makefile b/test/Makefile
index 56b6201..dbcaa09 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -9,7 +9,8 @@ CPPFLAGS += \
 
 EXECUTABLES := \
     offset \
-    mallinfo
+    mallinfo \
+    large_array_growth
 
 all: $(EXECUTABLES)
 
diff --git a/test/large_array_growth.c b/test/large_array_growth.c
new file mode 100644
index 0000000..dfa61a0
--- /dev/null
+++ b/test/large_array_growth.c
@@ -0,0 +1,17 @@
+#include <stdlib.h>
+#include <string.h>
+
+__attribute__((optimize(0)))
+int main(void) {
+    void *p = NULL;
+    size_t size = 256 * 1024;
+
+    for (unsigned i = 0; i < 20; i++) {
+        p = realloc(p, size);
+        if (!p) {
+            return 1;
+        }
+        memset(p, 'a', size);
+        size = size * 3 / 2;
+    }
+}