diff --git a/libcxx/cmake/caches/AMDGPU.cmake b/libcxx/cmake/caches/AMDGPU.cmake
new file mode 100644
index 0000000000000..0cd2eebfb9c16
--- /dev/null
+++ b/libcxx/cmake/caches/AMDGPU.cmake
@@ -0,0 +1,36 @@
+# Configuration options for libcxx.
+set(LIBCXX_ABI_VERSION 2 CACHE STRING "")
+set(LIBCXX_CXX_ABI libcxxabi CACHE STRING "")
+set(LIBCXX_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_LOCALIZATION OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_MONOTONIC_CLOCK ON CACHE BOOL "")
+set(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
+set(LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_RTTI OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
+set(LIBCXX_ENABLE_THREADS OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_UNICODE OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_WIDE_CHARACTERS OFF CACHE BOOL "")
+set(LIBCXX_HAS_TERMINAL_AVAILABLE OFF CACHE BOOL "")
+set(LIBCXX_INSTALL_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_LIBC "llvm-libc" CACHE STRING "")
+set(LIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
+
+# Configuration options for libcxxabi.
+set(LIBCXXABI_BAREMETAL ON CACHE BOOL "")
+set(LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_THREADS OFF CACHE BOOL "")
+set(LIBCXXABI_USE_LLVM_UNWINDER OFF CACHE BOOL "")
+
+# Necessary compile flags for AMDGPU.
+set(LIBCXX_ADDITIONAL_COMPILE_FLAGS
+    "-nogpulib;-flto;-fconvergent-functions;-Xclang;-mcode-object-version=none" CACHE STRING "")
+set(LIBCXXABI_ADDITIONAL_COMPILE_FLAGS
+    "-nogpulib;-flto;-fconvergent-functions;-Xclang;-mcode-object-version=none" CACHE STRING "")
+set(CMAKE_REQUIRED_FLAGS "-nogpulib -nodefaultlibs" CACHE STRING "")
diff --git a/libcxx/cmake/caches/NVPTX.cmake b/libcxx/cmake/caches/NVPTX.cmake
new file mode 100644
index 0000000000000..47a24a349e996
--- /dev/null
+++ b/libcxx/cmake/caches/NVPTX.cmake
@@ -0,0 +1,36 @@
+# Configuration options for libcxx.
+set(LIBCXX_ABI_VERSION 2 CACHE STRING "")
+set(LIBCXX_CXX_ABI libcxxabi CACHE STRING "")
+set(LIBCXX_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_LOCALIZATION OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_MONOTONIC_CLOCK ON CACHE BOOL "")
+set(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
+set(LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_RTTI OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
+set(LIBCXX_ENABLE_THREADS OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_UNICODE OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_WIDE_CHARACTERS OFF CACHE BOOL "")
+set(LIBCXX_HAS_TERMINAL_AVAILABLE OFF CACHE BOOL "")
+set(LIBCXX_INSTALL_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_LIBC "llvm-libc" CACHE STRING "")
+set(LIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY ON CACHE BOOL "")
+set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
+
+# Configuration options for libcxxabi.
+set(LIBCXXABI_BAREMETAL ON CACHE BOOL "")
+set(LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_THREADS OFF CACHE BOOL "")
+set(LIBCXXABI_USE_LLVM_UNWINDER OFF CACHE BOOL "")
+
+# Necessary compile flags for NVPTX.
+set(LIBCXX_ADDITIONAL_COMPILE_FLAGS
+    "-nogpulib;-flto;-fconvergent-functions;--cuda-feature=+ptx63" CACHE STRING "")
+set(LIBCXXABI_ADDITIONAL_COMPILE_FLAGS
+    "-nogpulib;-flto;-fconvergent-functions;--cuda-feature=+ptx63" CACHE STRING "")
+set(CMAKE_REQUIRED_FLAGS "-nogpulib -nodefaultlibs -flto -c" CACHE STRING "")