argon2-opencl: Use compiler barrier with ancient AMD drivers

openwall · Dec 30, 2023 · 62c27ff · 62c27ff
1 parent 3369f01
commit 62c27ff
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/run/opencl/argon2_kernel.cl b/run/opencl/argon2_kernel.cl
@@ -97,6 +97,8 @@ ulong u64_shuffle(ulong v, uint thread_src, uint thread, __local ulong *buf)
  // TODO: Test on other device types to add support
 #if !gpu_nvidia(DEVICE_INFO) && !gpu_amd(DEVICE_INFO)
  barrier(CLK_LOCAL_MEM_FENCE);
+#elif gpu_amd(DEVICE_INFO) && DEV_VER_MAJOR < 2500
+ asm("" ::: "memory");
 #endif
  return buf[thread_src];
 #endif