Update compiler to support icpx and latest nightly

CMakeLists.txt

@@ -144,6 +144,12 @@ if (INSTALL_HEADER_ONLY)
   set_target_properties(portblas PROPERTIES
     INTERFACE_INCLUDE_DIRECTORIES "${PORTBLAS_INCLUDE};$<INSTALL_INTERFACE:src>"
   )
+  if((${CMAKE_CXX_COMPILER_ID} STREQUAL "IntelLLVM") AND NOT
+    (${TUNING_TARGET} STREQUAL "INTEL_GPU") )
+      target_compile_options(portblas INTERFACE -fno-fast-math)
+      target_compile_options(portblas INTERFACE -mllvm -loopopt=0 )
+      message(STATUS "Adding -fno-fast-math -mllvm -loopopt=0 to portblas")
+  endif()
 else()
   add_subdirectory(src)
   build_library(portblas ${BLAS_ENABLE_EXTENSIONS})

cmake/Modules/FindDPCPP.cmake

@@ -96,6 +96,12 @@ function(add_sycl_to_target)
     "${multi_value_args}"
     ${ARGN}
   )
+  if((${CMAKE_CXX_COMPILER_ID} STREQUAL "IntelLLVM") AND NOT
+    (${TUNING_TARGET} STREQUAL "INTEL_GPU") )
+    target_compile_options(${SB_ADD_SYCL_TARGET} PRIVATE -fno-fast-math)
+    target_compile_options(${SB_ADD_SYCL_TARGET} PRIVATE -mllvm -loopopt=0 )
+    message(STATUS "Adding -fno-fast-math -mllvm -loopopt=0 to target ${SB_ADD_SYCL_TARGET}")
+  endif()
   target_compile_options(${SB_ADD_SYCL_TARGET} PUBLIC ${DPCPP_FLAGS})
   get_target_property(target_type ${SB_ADD_SYCL_TARGET} TYPE)
   if (NOT target_type STREQUAL "OBJECT_LIBRARY")

src/operations/blas1/IndexMaxMin.hpp

@@ -98,8 +98,8 @@ PORTBLAS_INLINE void IndexMaxMin<is_max, is_step0, lhs_t, rhs_t>::eval(
   // reduction within the sub_group
   for (index_t i = sg_local_range >> 1; i > 0; i >>= 1) {
     if (sg_local_id < i) {
-      element_t shfl_val = sg.shuffle_down(val.get_value(), i);
-      index_t shfl_idx = sg.shuffle_down(val.get_index(), i);
+      element_t shfl_val = sycl::shift_group_left(sg, val.get_value(), i);
+      index_t shfl_idx = sycl::shift_group_left(sg, val.get_index(), i);
       value_t shfl{shfl_idx, shfl_val};
       val = op::eval(val, shfl);
     }

test/unittest/CMakeLists.txt

@@ -101,13 +101,6 @@ if(is_dpcpp)
   )
 endif()
 
-
-# Contains tests that fail if compiled with -ffast-math
-set(SYCL_UNITTEST_NOFASTMATH
-  ${PORTBLAS_UNITTEST}/blas1/blas1_rotg_test.cpp
-  ${PORTBLAS_UNITTEST}/blas1/blas1_rotmg_test.cpp
-)
-
 if(GEMM_TALL_SKINNY_SUPPORT)
   list(APPEND SYCL_UNITTEST_SRCS ${PORTBLAS_UNITTEST}/blas3/blas3_gemm_tall_skinny_test.cpp)
 endif()
@@ -142,8 +135,7 @@ foreach(blas_test ${SYCL_UNITTEST_SRCS})
   target_link_libraries(${test_exec} PRIVATE gtest_main Clara::Clara blas::blas portblas)
   target_include_directories(${test_exec} PRIVATE ${CBLAS_INCLUDE} ${PORTBLAS_COMMON_INCLUDE_DIR})
 
-  list (FIND SYCL_UNITTEST_NOFASTMATH ${blas_test} _index)
-  if (${_index} GREATER -1)
+  if (${CMAKE_CXX_COMPILER_ID} STREQUAL "IntelLLVM")
     target_compile_options(${test_exec} PRIVATE "-fno-fast-math")
   endif()