Add option to change GRF mode

Signed-off-by: Dunajski, Bartosz <bartosz.dunajski@intel.com>

shared/source/compiler_interface/compiler_options.cpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2019-2022 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#include "shared/source/compiler_interface/compiler_options.h"
+
+#include <cstring>
+
+namespace NEO {
+namespace CompilerOptions {
+
+bool contains(const char *options, ConstStringRef optionToFind) {
+    auto it = strstr(options, optionToFind.data());
+    while (it != nullptr) {
+        const auto delimiter = it[optionToFind.size()];
+        if ((' ' == delimiter) || ('\0' == delimiter)) {
+            if ((it == options) || (it[-1] == ' ')) {
+                return true;
+            }
+        }
+        it = strstr(it + 1, optionToFind.data());
+    }
+    return false;
+}
+
+bool contains(const std::string &options, ConstStringRef optionToFind) {
+    return contains(options.c_str(), optionToFind);
+}
+
+TokenizedString tokenize(ConstStringRef src, char sperator) {
+    TokenizedString ret;
+    const char *it = src.begin();
+    while (it < src.end()) {
+        const char *beg = it;
+        while ((beg < src.end()) && (*beg == sperator)) {
+            ++beg;
+        }
+        const char *end = beg;
+        while ((end < src.end()) && (*end != sperator)) {
+            ++end;
+        }
+        it = end;
+        if (end != beg) {
+            ret.push_back(ConstStringRef(beg, end - beg));
+        }
+    }
+    return ret;
+};
+
+} // namespace CompilerOptions
+} // namespace NEO