i965/fs: Translate memory barrier NIR intrinsics.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 6d22faa54c3d81ff5c0114cf8cbeec09c88d3468..722e4e75a822705251d041427ba74459c1b4f174 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1287,6 +1287,13 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
       break;
    }
 
+   case nir_intrinsic_memory_barrier: {
+      const fs_reg tmp = bld.vgrf(BRW_REGISTER_TYPE_UD, 16 / dispatch_width);
+      bld.emit(SHADER_OPCODE_MEMORY_FENCE, tmp)
+         ->regs_written = 2;
+      break;
+   }
+
    case nir_intrinsic_load_front_face:
       bld.MOV(retype(dest, BRW_REGISTER_TYPE_D),
               *emit_frontfacing_interpolation());