diff --git a/hipamd/include/hip/hcc_detail/device_functions.h b/hipamd/include/hip/hcc_detail/device_functions.h
index fb453d02e9..6455fa6cd1 100644
--- a/hipamd/include/hip/hcc_detail/device_functions.h
+++ b/hipamd/include/hip/hcc_detail/device_functions.h
@@ -30,6 +30,7 @@ THE SOFTWARE.
 #include <hip/hip_vector_types.h>
 #include <hip/hcc_detail/device_library_decls.h>
 #include <hip/hcc_detail/llvm_intrinsics.h>
+#include <stddef.h>
 
 typedef unsigned long ulong;
 typedef unsigned int uint;
@@ -970,4 +971,62 @@ unsigned __smid(void)
 #endif //defined(__clang__) && defined(__HIP__)
 
 
+// loop unrolling
+static inline __device__ void* __hip_hc_memcpy(void* dst, const void* src, size_t size) {
+    auto dstPtr = static_cast<unsigned char*>(dst);
+    auto srcPtr = static_cast<const unsigned char*>(src);
+
+    while (size >= 4u) {
+        dstPtr[0] = srcPtr[0];
+        dstPtr[1] = srcPtr[1];
+        dstPtr[2] = srcPtr[2];
+        dstPtr[3] = srcPtr[3];
+
+        size -= 4u;
+        srcPtr += 4u;
+        dstPtr += 4u;
+    }
+    switch (size) {
+        case 3:
+            dstPtr[2] = srcPtr[2];
+        case 2:
+            dstPtr[1] = srcPtr[1];
+        case 1:
+            dstPtr[0] = srcPtr[0];
+    }
+
+    return dst;
+}
+
+static inline __device__ void* __hip_hc_memset(void* dst, unsigned char val, size_t size) {
+    auto dstPtr = static_cast<unsigned char*>(dst);
+
+    while (size >= 4u) {
+        dstPtr[0] = val;
+        dstPtr[1] = val;
+        dstPtr[2] = val;
+        dstPtr[3] = val;
+
+        size -= 4u;
+        dstPtr += 4u;
+    }
+    switch (size) {
+        case 3:
+            dstPtr[2] = val;
+        case 2:
+            dstPtr[1] = val;
+        case 1:
+            dstPtr[0] = val;
+    }
+
+    return dst;
+}
+static inline __device__ void* memcpy(void* dst, const void* src, size_t size) {
+    return __hip_hc_memcpy(dst, src, size);
+}
+
+static inline __device__ void* memset(void* ptr, int val, size_t size) {
+    unsigned char val8 = static_cast<unsigned char>(val);
+    return __hip_hc_memset(ptr, val8, size);
+}
 #endif
diff --git a/hipamd/include/hip/hcc_detail/hip_runtime.h b/hipamd/include/hip/hcc_detail/hip_runtime.h
index 13eaf4fda4..c8ac3b4ef4 100644
--- a/hipamd/include/hip/hcc_detail/hip_runtime.h
+++ b/hipamd/include/hip/hcc_detail/hip_runtime.h
@@ -260,25 +260,12 @@ static constexpr Coordinates<hc_get_workitem_id> threadIdx;
 
 #endif // defined __HCC__
 #if __HCC_OR_HIP_CLANG__
-extern "C" __device__ void* __hip_hc_memcpy(void* dst, const void* src, size_t size);
-extern "C" __device__ void* __hip_hc_memset(void* ptr, uint8_t val, size_t size);
 extern "C" __device__ void* __hip_hc_malloc(size_t);
 extern "C" __device__ void* __hip_hc_free(void* ptr);
 
 static inline __device__ void* malloc(size_t size) { return __hip_hc_malloc(size); }
-
 static inline __device__ void* free(void* ptr) { return __hip_hc_free(ptr); }
 
-static inline __device__ void* memcpy(void* dst, const void* src, size_t size) {
-    return __hip_hc_memcpy(dst, src, size);
-}
-
-static inline __device__ void* memset(void* ptr, int val, size_t size) {
-    uint8_t val8 = static_cast<uint8_t>(val);
-    return __hip_hc_memset(ptr, val8, size);
-}
-
-
 #ifdef __HCC_ACCELERATOR__
 
 #ifdef HC_FEATURE_PRINTF
diff --git a/hipamd/src/device_util.cpp b/hipamd/src/device_util.cpp
index 34e198c61d..87fbe0fcbc 100644
--- a/hipamd/src/device_util.cpp
+++ b/hipamd/src/device_util.cpp
@@ -92,58 +92,6 @@ __device__ void* __hip_hc_free(void* ptr) {
     return nullptr;
 }
 
-
-// loop unrolling
-__device__ void* __hip_hc_memcpy(void* dst, const void* src, size_t size) {
-    auto dstPtr = static_cast<uint8_t*>(dst);
-    auto srcPtr = static_cast<const uint8_t*>(src);
-
-    while (size >= 4u) {
-        dstPtr[0] = srcPtr[0];
-        dstPtr[1] = srcPtr[1];
-        dstPtr[2] = srcPtr[2];
-        dstPtr[3] = srcPtr[3];
-
-        size -= 4u;
-        srcPtr += 4u;
-        dstPtr += 4u;
-    }
-    switch (size) {
-        case 3:
-            dstPtr[2] = srcPtr[2];
-        case 2:
-            dstPtr[1] = srcPtr[1];
-        case 1:
-            dstPtr[0] = srcPtr[0];
-    }
-
-    return dst;
-}
-
-__device__ void* __hip_hc_memset(void* dst, uint8_t val, size_t size) {
-    auto dstPtr = static_cast<uint8_t*>(dst);
-
-    while (size >= 4u) {
-        dstPtr[0] = val;
-        dstPtr[1] = val;
-        dstPtr[2] = val;
-        dstPtr[3] = val;
-
-        size -= 4u;
-        dstPtr += 4u;
-    }
-    switch (size) {
-        case 3:
-            dstPtr[2] = val;
-        case 2:
-            dstPtr[1] = val;
-        case 1:
-            dstPtr[0] = val;
-    }
-
-    return dst;
-}
-
 // abort
 __device__ void abort() { return hc::abort(); }