i965/vs: Try again when we've successfully spilled a reg.

Before, we'd spill one reg, then continue on without actually register
allocating, then assertion fail when we tried to use a vgrf number as a
register number.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp b/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
index 22671f3f6ce..5a941d90c30 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
@@ -823,7 +823,10 @@ vec4_visitor::run()
       }
    }
 
-   reg_allocate();
+   while (!reg_allocate()) {
+      if (failed)
+         break;
+   }
 
    if (failed)
       return false;