i965: Silence uninitialized variable warning.

Silences this GCC warning.
brw_fs.cpp: In member function 'void fs_visitor::split_virtual_grfs()':
brw_fs.cpp:2516: warning: unused variable 'reg'

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 283d5aad496fc1e431fc896838b5f0acc725ca2e..b24655bf30367d88f8ded4a02ce128d88b1790a3 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2515,6 +2515,7 @@ fs_visitor::split_virtual_grfs()
         for (int j = 2; j < this->virtual_grf_sizes[i]; j++) {
            int reg = virtual_grf_alloc(1);
            assert(reg == new_virtual_grf[i] + j - 1);
+           (void) reg;
         }
         this->virtual_grf_sizes[i] = 1;
       }