inorder: update graduation unit

make sure instructions are able to commit before writing back to the RF
do not commit more than 1 non-speculative instruction per cycle

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cpu/inorder/cpu.cc b/src/cpu/inorder/cpu.cc
index 4130b9e14..0ec4c9861 100644
--- a/src/cpu/inorder/cpu.cc
+++ b/src/cpu/inorder/cpu.cc
@@ -465,12 +465,12 @@ InOrderCPU::createBackEndSked(DynInstPtr inst)
         W.needs(ExecUnit, ExecutionUnit::ExecuteInst);
     }
 
+    W.needs(Grad, GraduationUnit::GraduateInst);
+
     for (int idx=0; idx < inst->numDestRegs(); idx++) {
         W.needs(RegManager, UseDefUnit::WriteDestReg, idx);
     }
 
-    W.needs(Grad, GraduationUnit::GraduateInst);
-
     // Insert Back Schedule into our cache of
     // resource schedules
     addToSkedCache(inst, res_sked);