Index: clang/lib/Headers/opencl-c-base.h
===================================================================
--- clang/lib/Headers/opencl-c-base.h
+++ clang/lib/Headers/opencl-c-base.h
@@ -25,6 +25,25 @@
 #define cl_khr_integer_dot_product 1
 #define __opencl_c_integer_dot_product_input_4x8bit 1
 #define __opencl_c_integer_dot_product_input_4x8bit_packed 1
+#define cl_ext_float_atomics 1
+#ifdef cl_khr_fp16
+#define __opencl_c_ext_fp16_global_atomic_load_store 1
+#define __opencl_c_ext_fp16_local_atomic_load_store 1
+#define __opencl_c_ext_fp16_global_atomic_add 1
+#define __opencl_c_ext_fp16_local_atomic_add 1
+#define __opencl_c_ext_fp16_global_atomic_min_max 1
+#define __opencl_c_ext_fp16_local_atomic_min_max 1
+#endif
+#ifdef __opencl_c_fp64
+#define __opencl_c_ext_fp64_global_atomic_add 1
+#define __opencl_c_ext_fp64_local_atomic_add 1
+#define __opencl_c_ext_fp64_global_atomic_min_max 1
+#define __opencl_c_ext_fp64_local_atomic_min_max 1
+#endif
+#define __opencl_c_ext_fp32_global_atomic_add 1
+#define __opencl_c_ext_fp32_local_atomic_add 1
+#define __opencl_c_ext_fp32_global_atomic_min_max 1
+#define __opencl_c_ext_fp32_local_atomic_min_max 1
 
 #endif // defined(__SPIR__)
 #endif // (defined(__OPENCL_CPP_VERSION__) || __OPENCL_C_VERSION__ >= 200)
Index: clang/lib/Headers/opencl-c.h
===================================================================
--- clang/lib/Headers/opencl-c.h
+++ clang/lib/Headers/opencl-c.h
@@ -13682,6 +13682,217 @@
 #endif //defined(cl_khr_int64_base_atomics) && defined(cl_khr_int64_extended_atomics)
 #endif //__OPENCL_C_VERSION__ >= CL_VERSION_3_0
 
+// The functionality added by cl_ext_float_atomics extension
+#if __OPENCL_C_VERSION__ >= CL_VERSION_3_0
+#if defined(cl_ext_float_atomics)
+
+#if defined(__opencl_c_ext_fp32_global_atomic_min_max)
+float __ovld atomic_fetch_min(volatile __global atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_max(volatile __global atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_min_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_max_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_min_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_max_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_global_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp32_local_atomic_min_max)
+float __ovld atomic_fetch_min(volatile __local atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_max(volatile __local atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_min_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_max_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_min_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_max_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_local_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp32_global_atomic_min_max) ||                      \
+    defined(__opencl_c_ext_fp32_local_atomic_min_max)
+float __ovld atomic_fetch_min(volatile atomic_float *object, float operand);
+float __ovld atomic_fetch_max(volatile atomic_float *object, float operand);
+float __ovld atomic_fetch_min_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_max_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_min_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_max_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_global_atomic_min_max) ||                      \
+    defined(__opencl_c_ext_fp32_local_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp64_global_atomic_min_max)
+double __ovld atomic_fetch_min(volatile __global atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_max(volatile __global atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_min_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_max_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_min_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_max_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_global_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp64_local_atomic_min_max)
+double __ovld atomic_fetch_min(volatile __local atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_max(volatile __local atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_min_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_max_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_min_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_max_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_local_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp64_global_atomic_min_max) ||                      \
+    defined(__opencl_c_ext_fp64_local_atomic_min_max)
+double __ovld atomic_fetch_min(volatile atomic_double *object, double operand);
+double __ovld atomic_fetch_max(volatile atomic_double *object, double operand);
+double __ovld atomic_fetch_min_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_max_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_min_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_max_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_global_atomic_min_max) ||                      \
+    defined(__opencl_c_ext_fp64_local_atomic_min_max)
+
+#if defined(__opencl_c_ext_fp32_global_atomic_add)
+float __ovld atomic_fetch_add(volatile __global atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_sub(volatile __global atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_add_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_sub_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_add_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_sub_explicit(volatile __global atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_global_atomic_add)
+
+#if defined(__opencl_c_ext_fp32_local_atomic_add)
+float __ovld atomic_fetch_add(volatile __local atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_sub(volatile __local atomic_float *object,
+                              float operand);
+float __ovld atomic_fetch_add_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_sub_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_add_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_sub_explicit(volatile __local atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_local_atomic_add)
+
+#if defined(__opencl_c_ext_fp32_global_atomic_add) ||                          \
+    defined(__opencl_c_ext_fp32_local_atomic_add)
+float __ovld atomic_fetch_add(volatile atomic_float *object, float operand);
+float __ovld atomic_fetch_sub(volatile atomic_float *object, float operand);
+float __ovld atomic_fetch_add_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_sub_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order);
+float __ovld atomic_fetch_add_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+float __ovld atomic_fetch_sub_explicit(volatile atomic_float *object,
+                                       float operand, memory_order order,
+                                       memory_scope scope);
+#endif // defined(__opencl_c_ext_fp32_global_atomic_add) ||                          \
+    defined(__opencl_c_ext_fp32_local_atomic_add)
+
+#if defined(__opencl_c_ext_fp64_global_atomic_add)
+double __ovld atomic_fetch_add(volatile __global atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_sub(volatile __global atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_add_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_sub_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_add_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_sub_explicit(volatile __global atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_global_atomic_add)
+
+#if defined(__opencl_c_ext_fp64_local_atomic_add)
+double __ovld atomic_fetch_add(volatile __local atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_sub(volatile __local atomic_double *object,
+                               double operand);
+double __ovld atomic_fetch_add_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_sub_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_add_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_sub_explicit(volatile __local atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_local_atomic_add)
+
+#if defined(__opencl_c_ext_fp64_global_atomic_add) ||                          \
+    defined(__opencl_c_ext_fp64_local_atomic_add)
+double __ovld atomic_fetch_add(volatile atomic_double *object, double operand);
+double __ovld atomic_fetch_sub(volatile atomic_double *object, double operand);
+double __ovld atomic_fetch_add_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_sub_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order);
+double __ovld atomic_fetch_add_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+double __ovld atomic_fetch_sub_explicit(volatile atomic_double *object,
+                                        double operand, memory_order order,
+                                        memory_scope scope);
+#endif // defined(__opencl_c_ext_fp64_global_atomic_add) ||                          \
+    defined(__opencl_c_ext_fp64_local_atomic_add)
+
+#endif // cl_ext_float_atomics
+#endif //__OPENCL_C_VERSION__ >= CL_VERSION_3_0
+
 // atomic_store()
 
 #if defined(__opencl_c_atomic_order_seq_cst) && defined(__opencl_c_atomic_scope_device)
Index: clang/lib/Sema/OpenCLBuiltins.td
===================================================================
--- clang/lib/Sema/OpenCLBuiltins.td
+++ clang/lib/Sema/OpenCLBuiltins.td
@@ -27,6 +27,7 @@
 def CL11  : Version<110>;
 def CL12  : Version<120>;
 def CL20  : Version<200>;
+def CL30  : Version<300>;
 
 // Address spaces
 // Pointer types need to be assigned an address space.
@@ -1102,6 +1103,58 @@
       [Bool, PointerType<VolatileType<AtomicFlag>, GenericAS>, MemoryOrder, MemoryScope]>;
 }
 
+// The functionality added by cl_ext_float_atomics extension
+let MinVersion = CL30 in {
+  foreach TypePair =
+      [[AtomicFloat, Float, Float], [AtomicDouble, Double, Double]] in {
+    foreach ModOp = ["add", "sub"] in {
+      foreach AddressSpaceiKind = [GenericAS, GlobalAS, LocalAS] in {
+      def:
+        Builtin<"atomic_fetch_" #ModOp, [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>, TypePair[2]
+        ]>;
+      def:
+        Builtin<"atomic_fetch_" #ModOp #"_explicit", [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>,
+          TypePair[2], MemoryOrder
+        ]>;
+      def:
+        Builtin<"atomic_fetch_" #ModOp #"_explicit", [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>,
+          TypePair[2], MemoryOrder, MemoryScope
+        ]>;
+      }
+    }
+  }
+  foreach TypePair =
+      [[AtomicFloat, Float, Float], [AtomicDouble, Double, Double]] in {
+    foreach ModOp = ["max", "min"] in {
+      foreach AddressSpaceiKind = [GenericAS, GlobalAS, LocalAS] in {
+      def:
+        Builtin<"atomic_fetch_" #ModOp, [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>, TypePair[2]
+        ]>;
+      def:
+        Builtin<"atomic_fetch_" #ModOp #"_explicit", [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>,
+          TypePair[2], MemoryOrder
+        ]>;
+      def:
+        Builtin<"atomic_fetch_" #ModOp #"_explicit", [
+          TypePair[1],
+          PointerType<VolatileType<TypePair[0]>, AddressSpaceiKind>,
+          TypePair[2], MemoryOrder, MemoryScope
+        ]>;
+      }
+    }
+  }
+}
+
 //--------------------------------------------------------------------
 // OpenCL v1.1 s6.11.12, v1.2 s6.12.12, v2.0 s6.13.12 - Miscellaneous Vector Functions
 // --- Table 19 ---
Index: clang/test/Headers/opencl-c-header.cl
===================================================================
--- clang/test/Headers/opencl-c-header.cl
+++ clang/test/Headers/opencl-c-header.cl
@@ -135,6 +135,36 @@
 #if __opencl_c_integer_dot_product_input_4x8bit_packed != 1
 #error "Incorrectly defined __opencl_c_integer_dot_product_input_4x8bit_packed"
 #endif
+#if __opencl_c_ext_fp16_global_atomic_load_store != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_global_atomic_load_store"
+#endif
+#if __opencl_c_ext_fp16_local_atomic_load_store != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_local_atomic_load_store"
+#endif
+#if __opencl_c_ext_fp16_global_atomic_add != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_global_atomic_add"
+#endif
+#if __opencl_c_ext_fp32_global_atomic_add != 1
+#error "Incorrectly defined __opencl_c_ext_fp32_global_atomic_add"
+#endif
+#if __opencl_c_ext_fp16_local_atomic_add != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_local_atomic_add"
+#endif
+#if __opencl_c_ext_fp32_local_atomic_add != 1
+#error "Incorrectly defined __opencl_c_ext_fp32_local_atomic_add"
+#endif
+#if __opencl_c_ext_fp16_global_atomic_min_max != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_global_atomic_min_max"
+#endif
+#if __opencl_c_ext_fp32_global_atomic_min_max != 1
+#error "Incorrectly defined __opencl_c_ext_fp32_global_atomic_min_max"
+#endif
+#if __opencl_c_ext_fp16_local_atomic_min_max != 1
+#error "Incorrectly defined __opencl_c_ext_fp16_local_atomic_min_max"
+#endif
+#if __opencl_c_ext_fp32_local_atomic_min_max != 1
+#error "Incorrectly defined __opencl_c_ext_fp32_local_atomic_min_max"
+#endif
 
 #else
 
@@ -171,6 +201,48 @@
 #ifdef __opencl_c_integer_dot_product_input_4x8bit_packed
 #error "Incorrect __opencl_c_integer_dot_product_input_4x8bit_packed define"
 #endif
+#ifdef __opencl_c_ext_fp16_global_atomic_load_store
+#error "Incorrectly __opencl_c_ext_fp16_global_atomic_load_store defined"
+#endif
+#ifdef __opencl_c_ext_fp16_local_atomic_load_store
+#error "Incorrectly __opencl_c_ext_fp16_local_atomic_load_store defined"
+#endif
+#ifdef __opencl_c_ext_fp16_global_atomic_add
+#error "Incorrectly __opencl_c_ext_fp16_global_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp32_global_atomic_add
+#error "Incorrectly __opencl_c_ext_fp32_global_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp64_global_atomic_add
+#error "Incorrectly __opencl_c_ext_fp64_global_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp16_local_atomic_add
+#error "Incorrectly __opencl_c_ext_fp16_local_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp32_local_atomic_add
+#error "Incorrectly __opencl_c_ext_fp32_local_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp64_local_atomic_add
+#error "Incorrectly __opencl_c_ext_fp64_local_atomic_add defined"
+#endif
+#ifdef __opencl_c_ext_fp16_global_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp16_global_atomic_min_max defined"
+#endif
+#ifdef __opencl_c_ext_fp32_global_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp32_global_atomic_min_max defined"
+#endif
+#ifdef __opencl_c_ext_fp64_global_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp64_global_atomic_min_max defined"
+#endif
+#ifdef __opencl_c_ext_fp16_local_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp16_local_atomic_min_max defined"
+#endif
+#ifdef __opencl_c_ext_fp32_local_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp32_local_atomic_min_max defined"
+#endif
+#ifdef __opencl_c_ext_fp64_local_atomic_min_max
+#error "Incorrectly __opencl_c_ext_fp64_local_atomic_min_max defined"
+#endif
 
 #endif //(defined(__OPENCL_CPP_VERSION__) || __OPENCL_C_VERSION__ >= 200)
 
Index: clang/test/SemaOpenCL/fdeclare-opencl-builtins.cl
===================================================================
--- clang/test/SemaOpenCL/fdeclare-opencl-builtins.cl
+++ clang/test/SemaOpenCL/fdeclare-opencl-builtins.cl
@@ -7,6 +7,8 @@
 // RUN: %clang_cc1 %s -triple spir -verify -pedantic -Wconversion -Werror -fsyntax-only -cl-std=CLC++ -fdeclare-opencl-builtins -DNO_HEADER
 // RUN: %clang_cc1 %s -triple spir -verify -pedantic -Wconversion -Werror -fsyntax-only -cl-std=CLC++ -fdeclare-opencl-builtins -finclude-default-header
 // RUN: %clang_cc1 %s -triple spir -verify -pedantic -Wconversion -Werror -fsyntax-only -cl-std=CL2.0 -fdeclare-opencl-builtins -finclude-default-header -cl-ext=-cl_khr_fp64 -DNO_FP64
+// RUN: %clang_cc1 %s -triple spir -verify -pedantic -Wconversion -Werror -fsyntax-only -cl-std=CL3.0 -fdeclare-opencl-builtins -DNO_HEADER
+// RUN: %clang_cc1 %s -triple spir -verify -pedantic -Wconversion -Werror -fsyntax-only -cl-std=CL3.0 -fdeclare-opencl-builtins -finclude-default-header
 
 // Test the -fdeclare-opencl-builtins option.  This is not a completeness
 // test, so it should not test for all builtins defined by OpenCL.  Instead
@@ -122,6 +124,46 @@
 }
 #endif
 
+#if !defined(NO_HEADER) && __OPENCL_C_VERSION__ == 300
+// Check added atomic_fetch_ functions by cl_ext_float_atomics
+// extension can be called
+void test_atomic_fetch_with_address_space(volatile __generic atomic_float *a_float,
+                                          volatile __generic atomic_double *a_double,
+                                          volatile __local atomic_float *a_float_local,
+                                          volatile __local atomic_double *a_double_local,
+                                          volatile __global atomic_float *a_float_global,
+                                          volatile __global atomic_double *a_double_global) {
+  float f1, resf1;
+  double d1, resd1;
+
+  resf1 = atomic_fetch_min(a_float, f1);
+  resf1 = atomic_fetch_max(a_float, f1);
+  resf1 = atomic_fetch_add(a_float, f1);
+  resf1 = atomic_fetch_sub(a_float, f1);
+  resf1 = atomic_fetch_min_explicit(a_float_local, f1, memory_order_seq_cst);
+  resf1 = atomic_fetch_max_explicit(a_float_local, f1, memory_order_seq_cst);
+  resf1 = atomic_fetch_add_explicit(a_float_local, f1, memory_order_seq_cst);
+  resf1 = atomic_fetch_sub_explicit(a_float_local, f1, memory_order_seq_cst);
+  resf1 = atomic_fetch_min_explicit(a_float_global, f1, memory_order_seq_cst, memory_scope_work_group);
+  resf1 = atomic_fetch_max_explicit(a_float_global, f1, memory_order_seq_cst, memory_scope_work_group);
+  resf1 = atomic_fetch_add_explicit(a_float_global, f1, memory_order_seq_cst, memory_scope_work_group);
+  resf1 = atomic_fetch_sub_explicit(a_float_global, f1, memory_order_seq_cst, memory_scope_work_group);
+
+  resd1 = atomic_fetch_min(a_double, d1);
+  resd1 = atomic_fetch_max(a_double, d1);
+  resd1 = atomic_fetch_add(a_double, d1);
+  resd1 = atomic_fetch_sub(a_double, d1);
+  resd1 = atomic_fetch_min_explicit(a_double_local, d1, memory_order_seq_cst);
+  resd1 = atomic_fetch_max_explicit(a_double_local, d1, memory_order_seq_cst);
+  resd1 = atomic_fetch_add_explicit(a_double_local, d1, memory_order_seq_cst);
+  resd1 = atomic_fetch_sub_explicit(a_double_local, d1, memory_order_seq_cst);
+  resd1 = atomic_fetch_min_explicit(a_double_global, d1, memory_order_seq_cst, memory_scope_work_group);
+  resd1 = atomic_fetch_max_explicit(a_double_global, d1, memory_order_seq_cst, memory_scope_work_group);
+  resd1 = atomic_fetch_add_explicit(a_double_global, d1, memory_order_seq_cst, memory_scope_work_group);
+  resd1 = atomic_fetch_sub_explicit(a_double_global, d1, memory_order_seq_cst, memory_scope_work_group);
+}
+#endif // !defined(NO_HEADER) && __OPENCL_C_VERSION__ == 300
+
 // Test old atomic overloaded with generic address space in C++ for OpenCL.
 #if __OPENCL_C_VERSION__ >= 200
 void test_legacy_atomics_cpp(__generic volatile unsigned int *a) {