i965: Add a sanity check for register allocation sizes.

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index b38df71..ba6c048 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2293,6 +2293,11 @@ fs_visitor::assign_regs()
            break;
       }
       if (i == class_count) {
+        if (this->virtual_grf_sizes[r] >= base_reg_count) {
+           fprintf(stderr, "Object too large to register allocate.\n");
+           this->fail = true;
+        }
+
         class_sizes[class_count++] = this->virtual_grf_sizes[r];
       }
    }