[SYCL] Adjust GCC workaround and its scope

Previously we were hard-coding an -O2 optimization level for the
'signbit' builtin for all versions of GCC.

Despite this workaround, I found locally that I was unable to build with
GCC versions 12.2, 12.3, and 13.2. Reducing the optimization level to
-O1 allowed me to progress. This seems to follow the bug report already
linked, which had test cases at -O2 which were also failing.

With this in mind, we can also restrict the GCC versions we apply the
workaround to, so that more modern compilers should "just work" without
us having to do anything. That should save someone having to investigate
a performance report a year or so down the line...

Author: frasercrmck

sycl/source/builtins/relational_functions.cpp

@@ -71,17 +71,34 @@ REL_BUILTIN(ONE_ARG, isnormal)
 REL_BUILTIN(TWO_ARGS, isunordered)
 REL_BUILTIN_CUSTOM(TWO_ARGS, isordered,
                    ([](auto x, auto y) { return !sycl::isunordered(x, y); }))
-#if defined(__GNUC__) && !defined(__clang__)
+
+#define GCC_VERSION                                                            \
+  (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+
+#if defined(__GNUC__) && !defined(__clang__) &&                                \
+    ((GCC_VERSION >= 100000 && GCC_VERSION < 110000) ||                        \
+     (GCC_VERSION >= 110000 && GCC_VERSION < 110500) ||                        \
+     (GCC_VERSION >= 120000 && GCC_VERSION < 120400) ||                        \
+     (GCC_VERSION >= 130000 && GCC_VERSION < 130300))
 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112816
-#pragma GCC push_options
-#pragma GCC optimize("-O2")
+// The reproducers in that ticket only affect GCCs 10 to 13. Release
+// branches 11.5, 12.4, and 13.3 have been updated with the fix; release branch
+// 10 hasn't, so all GCCs 10.x are considered affected.
+#define GCC_PR112816_DISABLE_OPT                                               \
+  _Pragma("GCC push_options") _Pragma("GCC optimize(\"-O1\")")
+#define GCC_PR112816_RESTORE_OPT _Pragma("GCC pop_options")
+#else
+#define GCC_PR112816_DISABLE_OPT
+#define GCC_PR112816_RESTORE_OPT
 #endif
 
+GCC_PR112816_DISABLE_OPT
+
 REL_BUILTIN(ONE_ARG, signbit)
 
-#if defined(__GNUC__) && !defined(__clang__)
-#pragma GCC pop_options
-#endif
+GCC_PR112816_RESTORE_OPT
+
+#undef GCC_VERSION
 
 HOST_IMPL(bitselect, [](auto x, auto y, auto z) {
   using T0 = decltype(x);