Index: compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
===================================================================
--- compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
+++ compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
@@ -263,7 +263,7 @@
 // Ideally, we create a ".ref" of each variable inside the function
 // __llvm_profile_begin_counters(), but there's no source level construct
 // that allows us to generate that.
-__attribute__((destructor)) void keep() {
+COMPILER_RT_VISIBILITY __attribute__((destructor)) void keep() {
   int volatile use = &dummy_cnts < &dummy_data && &dummy_name < &dummy_vnds;
   (void)use;
 }
Index: compiler-rt/test/profile/AIX/lit.local.cfg.py
===================================================================
--- /dev/null
+++ compiler-rt/test/profile/AIX/lit.local.cfg.py
@@ -0,0 +1,9 @@
+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if root.host_os not in ['AIX']:
+  config.unsupported = True
Index: compiler-rt/test/profile/AIX/shared-bexpall-pgo.c
===================================================================
--- /dev/null
+++ compiler-rt/test/profile/AIX/shared-bexpall-pgo.c
@@ -0,0 +1,14 @@
+// RUN: split-file %s %t
+// RUN: cd %t
+//
+// RUN: %clang -fprofile-generate foo.c -c -o foo.o
+// RUN: %clang -shared foo.o -fprofile-generate -o libfoo.so -bexpall
+// RUN: %clang -L%t user.c libfoo.so -fprofile-generate -o user1
+// RUN: ./user1
+
+//--- foo.c
+void foo() {}
+
+//--- user.c
+void foo();
+int main() { foo(); }