clover: Use device cap to query pointer size instead of hardcoded 32bits

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97513
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

src/gallium/state_trackers/clover/api/device.cpp

@@ -158,7 +158,7 @@ clGetDeviceInfo(cl_device_id d_dev, cl_device_info param,
       break;
 
    case CL_DEVICE_ADDRESS_BITS:
-      buf.as_scalar<cl_uint>() = 32;
+      buf.as_scalar<cl_uint>() = dev.address_bits();
       break;
 
    case CL_DEVICE_MAX_READ_IMAGE_ARGS:

src/gallium/state_trackers/clover/core/device.cpp

@@ -193,6 +193,12 @@ device::subgroup_size() const {
                                       PIPE_COMPUTE_CAP_SUBGROUP_SIZE)[0];
 }
 
+cl_uint
+device::address_bits() const {
+   return get_compute_param<uint32_t>(pipe, ir_format(),
+                                      PIPE_COMPUTE_CAP_ADDRESS_BITS)[0];
+}
+
 std::string
 device::device_name() const {
    return pipe->get_name(pipe);

src/gallium/state_trackers/clover/core/device.hpp

@@ -68,6 +68,7 @@ namespace clover {
 
       std::vector<size_t> max_block_size() const;
       cl_uint subgroup_size() const;
+      cl_uint address_bits() const;
       std::string device_name() const;
       std::string vendor_name() const;
       enum pipe_shader_ir ir_format() const;