diff --git a/compiler-rt/test/tsan/ignore_lib0.cpp b/compiler-rt/test/tsan/ignore_lib0.cpp
index 1d375336b1c02..d6d6acdbc370c 100644
--- a/compiler-rt/test/tsan/ignore_lib0.cpp
+++ b/compiler-rt/test/tsan/ignore_lib0.cpp
@@ -1,7 +1,7 @@
 // RUN: rm -rf %t-dir
 // RUN: mkdir %t-dir
 
-// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib0.so
+// RUN: %clangxx_tsan -O1 -fno-builtin %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib0.so
 // RUN: %clangxx_tsan -O1 %s -L%t-dir -lignore_lib0 %link_libcxx_tsan -o %t
 // RUN: echo running w/o suppressions:
 // RUN: env LD_LIBRARY_PATH=%t-dir${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH} %deflake %run %t | FileCheck %s --check-prefix=CHECK-NOSUPP
diff --git a/compiler-rt/test/tsan/ignore_lib1.cpp b/compiler-rt/test/tsan/ignore_lib1.cpp
index 2a708eaab4015..01139519e491b 100644
--- a/compiler-rt/test/tsan/ignore_lib1.cpp
+++ b/compiler-rt/test/tsan/ignore_lib1.cpp
@@ -1,7 +1,7 @@
 // RUN: rm -rf %t-dir
 // RUN: mkdir %t-dir
 
-// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib1.so
+// RUN: %clangxx_tsan -O1 -fno-builtin %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib1.so
 // RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t-dir/executable
 // RUN: echo running w/o suppressions:
 // RUN: %deflake %run %t-dir/executable | FileCheck %s --check-prefix=CHECK-NOSUPP
diff --git a/compiler-rt/test/tsan/ignore_lib5.cpp b/compiler-rt/test/tsan/ignore_lib5.cpp
index 81a1840c95517..a71d560ab913c 100644
--- a/compiler-rt/test/tsan/ignore_lib5.cpp
+++ b/compiler-rt/test/tsan/ignore_lib5.cpp
@@ -1,7 +1,7 @@
 // RUN: rm -rf %t-dir
 // RUN: mkdir %t-dir
 
-// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib1.so
+// RUN: %clangxx_tsan -O1 -fno-builtin %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib1.so
 // RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t-dir/executable
 // RUN: echo running w/o suppressions:
 // RUN: %deflake %run %t-dir/executable | FileCheck %s --check-prefix=CHECK-NOSUPP