1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/x86/utility.cc b/src/arch/x86/utility.cc
index f7d0f816e..e1be61180 100644
--- a/src/arch/x86/utility.cc
+++ b/src/arch/x86/utility.cc
@@ -245,6 +245,10 @@ copyRegs(ThreadContext *src, ThreadContext *dest)
     //copy condition-code regs
     for (int i = 0; i < NumCCRegs; ++i)
          dest->setCCRegFlat(i, src->readCCRegFlat(i));
+
+    // copy vector regs when added to the architecture
+    assert(NumVectorRegs == 0);
+
     copyMiscRegs(src, dest);
     dest->pcState(src->pcState());
 }