i965: Silence uninitialized variable warning.

Fixes this GCC warning.
brw_fs.cpp: In function 'brw_reg brw_reg_from_fs_reg(fs_reg*)':
brw_fs.cpp:3255: warning: 'brw_reg' may be used uninitialized in this function

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 6bb195b48778fd16e8aa8d40cbbb299f2360e3db..c3cbe0df618bc869530655e6dff181b0faef1ddd 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -3280,6 +3280,7 @@ static struct brw_reg brw_reg_from_fs_reg(fs_reg *reg)
         break;
       default:
         assert(!"not reached");
+        brw_reg = brw_null_reg();
         break;
       }
       break;
@@ -3294,6 +3295,10 @@ static struct brw_reg brw_reg_from_fs_reg(fs_reg *reg)
       assert(!"not reached");
       brw_reg = brw_null_reg();
       break;
+   default:
+      assert(!"not reached");
+      brw_reg = brw_null_reg();
+      break;
    }
    if (reg->abs)
       brw_reg = brw_abs(brw_reg);