Align pragma conditionals in onedal and daal (#3433)

Author: ethanglaser

cpp/oneapi/dal/backend/common.hpp

@@ -30,12 +30,19 @@
 #define PRAGMA_TO_STR_(ARGS) PRAGMA_TO_STR(ARGS)
 
 #if defined(__INTEL_COMPILER) || defined(__INTEL_LLVM_COMPILER)
-#define PRAGMA_IVDEP               _Pragma("ivdep")
-#define PRAGMA_NOVECTOR            _Pragma("novector")
-#define PRAGMA_VECTOR_UNALIGNED    _Pragma("vector unaligned")
+#define PRAGMA_IVDEP            _Pragma("ivdep")
+#define PRAGMA_NOVECTOR         _Pragma("novector")
+#define PRAGMA_VECTOR_UNALIGNED _Pragma("vector unaligned")
+// TODO: Temporary workaround. icx fails to vectorize some loops in debug build on Windows or with gcov.
+#if (defined(_MSC_VER) && defined(_DEBUG)) || defined(GCOV_BUILD)
+#define PRAGMA_VECTOR_ALWAYS
+#define PRAGMA_OMP_SIMD
+#define PRAGMA_OMP_SIMD_ARGS(ARGS)
+#else
 #define PRAGMA_VECTOR_ALWAYS       _Pragma("vector always")
 #define PRAGMA_OMP_SIMD            PRAGMA_TO_STR(omp simd)
 #define PRAGMA_OMP_SIMD_ARGS(ARGS) PRAGMA_TO_STR_(omp simd ARGS)
+#endif
 #elif defined(__GNUC__) || defined(__clang__)
 #define PRAGMA_IVDEP _Pragma("ivdep")
 #define PRAGMA_NOVECTOR