diff --git a/src/intel/compiler/brw/brw_reg_allocate.cpp b/src/intel/compiler/brw/brw_reg_allocate.cpp
index 1929fd10b73..fdb31af96d9 100644
--- a/src/intel/compiler/brw/brw_reg_allocate.cpp
+++ b/src/intel/compiler/brw/brw_reg_allocate.cpp
@@ -1429,6 +1429,12 @@ brw_reg_alloc::assign_regs(bool allow_spilling, bool spill_all)
 bool
 brw_assign_regs(brw_shader &s, bool allow_spilling, bool spill_all)
 {
+   /* Ensure that g0 is reserved for spilling since there is going to be
+    * spilling.
+    */
+   if (spill_all)
+      allow_spilling = true;
+
    brw_reg_alloc alloc(&s);
    bool success = alloc.assign_regs(allow_spilling, spill_all);
    if (!success && allow_spilling) {