support clang/aocc

CMakeLists.txt

@@ -36,9 +36,15 @@ option(CK_TIME_KERNEL "Turning off will disable kernel timing globally" ON)
 
 ## OpenMP
 if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    set(OMP_CXX_FLAG -fopenmp=libomp -Wno-unused-command-line-argument)
-    set(OMP_LIBRARY /opt/rocm/llvm/lib/libomp.so)
-    set(OMP_LINK_FLAG -Wl,-rpath,/opt/rocm/llvm/lib)
+    if(NOT CK_NOGPU)
+        set(OMP_CXX_FLAG -fopenmp=libomp -Wno-unused-command-line-argument)
+        set(OMP_LIBRARY /opt/rocm/llvm/lib/libomp.so)
+        set(OMP_LINK_FLAG -Wl,-rpath,/opt/rocm/llvm/lib)
+    else()
+        set(OMP_CXX_FLAG -fopenmp)
+        set(OMP_LIBRARY "")
+        set(OMP_LINK_FLAG -fopenmp)
+    endif()
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     set(OMP_CXX_FLAG -fopenmp)
     set(OMP_LIBRARY "")

include/ck/utility/data_type.hpp

@@ -8,7 +8,8 @@ namespace ck {
 
 using bhalf_t = ushort;
 #ifdef CK_NOGPU
-using half_t = half_float::half;
+using half_t = int16_t; // TODO: some version of clang complains about half_float::half is not POD,
+                        // hence can't be used in ext_vector_type()
 #else
 using half_t = _Float16;
 #endif

script/cmake-avx2-clang-aocc.sh

+#!/bin/bash
+rm -f CMakeCache.txt
+rm -f *.cmake
+rm -rf CMakeFiles
+AVX2_FLAGS='-m64 -mavx2 -mf16c -mfma -DHALF_ENABLE_F16C_INTRINSICS=0'
+
+rm -rf build/
+mkdir build && cd build
+
+MY_PROJECT_SOURCE=..
+MY_PROJECT_INSTALL=../install.dir
+rm -rf $MY_PROJECT_INSTALL
+mkdir $MY_PROJECT_INSTALL
+
+cmake                                                                   \
+-D CMAKE_INSTALL_PREFIX=${MY_PROJECT_INSTALL}                           \
+-D BUILD_DEV=OFF                                                        \
+-D CMAKE_BUILD_TYPE=Release                                             \
+-D CMAKE_CXX_FLAGS=" $AVX2_FLAGS "                                      \
+-D CMAKE_CXX_COMPILER=clang++                                           \
+-D CMAKE_PREFIX_PATH=/usr/local                                         \
+-D CMAKE_VERBOSE_MAKEFILE:BOOL=ON                                       \
+-D CK_NOGPU=ON                                                          \
+${MY_PROJECT_SOURCE}
+