Cycles: Disable MNEE on RDNA4 GPUs

At the moment MNEE locks up Cycles, or has rendering artifacts on
RDNA4 GPUs on WIndows.

This commit disables MNEE on that configuration until a fix
is avaliable.

Pull Request: https://projects.blender.org/blender/blender/pulls/136980

intern/cycles/device/hip/device.cpp

@@ -170,8 +170,15 @@ void device_hip_info(vector<DeviceInfo> &devices)
 
     const bool is_rdna2_or_newer = hipIsRDNA2OrNewer(num);
 
-    /* Disable on RDNA1 due to apparent bug in HIP SDK 6.3. */
+    /* Disable MNEE on devices that don't work properly with it.
+     * Common symptoms are either rendering artifacts,
+     * or renders that get stuck in the MNEE kernel.
+     * These are most likely compiler bugs and can be re-enabled in the future. */
+#  ifdef _WIN32
+    info.has_mnee = is_rdna2_or_newer && !hipIsRDNA4OrNewer(num);
+#  else
     info.has_mnee = is_rdna2_or_newer;
+#  endif
     info.has_nanovdb = true;
 
     info.has_gpu_queue = true;

intern/cycles/device/hip/util.h

@@ -77,6 +77,14 @@ static inline bool hipIsRDNA2OrNewer(const int hipDevId)
   return (major > 10 || (major == 10 && minor >= 3));
 }
 
+static inline bool hipIsRDNA4OrNewer(const int hipDevId)
+{
+  int major;
+  hipDeviceGetAttribute(&major, hipDeviceAttributeComputeCapabilityMajor, hipDevId);
+
+  return (major >= 12);
+}
+
 static inline bool hipNeedPreciseMath(const std::string &arch)
 {
 #  ifdef _WIN32