[SYCL][LIBCLC] Add sin, cos and sqrt builtins for AMDGCN

Author: jchlanda

libclc/amdgcn-amdhsa/libspirv/SOURCES

@@ -2,3 +2,6 @@ workitem/get_global_size.cl
 workitem/get_local_size.cl
 workitem/get_num_groups.cl
 synchronization/barrier.cl
+math/cos.cl
+math/sin.cl
+math/sqrt.cl

libclc/amdgcn-amdhsa/libspirv/math/cos.cl

@@ -0,0 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <spirv/spirv.h>
+
+_CLC_OVERLOAD _CLC_DECL _CLC_CONSTFN __clc_fp32_t
+__spirv_ocl_cos(__clc_fp32_t In) {
+  return __builtin_amdgcn_cosf(In);
+}

libclc/amdgcn-amdhsa/libspirv/math/sin.cl

@@ -0,0 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <spirv/spirv.h>
+
+_CLC_OVERLOAD _CLC_DECL _CLC_CONSTFN __clc_fp32_t
+__spirv_ocl_sin(__clc_fp32_t In) {
+  return __builtin_amdgcn_sinf(In);
+}

libclc/amdgcn-amdhsa/libspirv/math/sqrt.cl

@@ -0,0 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <spirv/spirv.h>
+
+_CLC_OVERLOAD _CLC_DECL _CLC_CONSTFN __clc_fp32_t
+__spirv_ocl_sqrt(__clc_fp32_t In) {
+  return __builtin_amdgcn_sqrtf(In);
+}