cpu-o3, misc: less difftest string manipulation

Change-Id: I34b66b9736db62f9b6e24937f0319cf3a9b50509
OpenXiangShan · Aug 29, 2024 · 7a6b6fa · 7a6b6fa
1 parent 4fcec72
commit 7a6b6fa
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/cpu/base.cc b/src/cpu/base.cc
@@ -909,9 +909,6 @@ BaseCPU::diffWithNEMU(ThreadID tid, InstSeqNum seq)
     auto gem5_pc = diffInfo.pc->instAddr();
     diffAllStates->gem5RegFile.pc = gem5_pc;
     auto nemu_pc = diffAllStates->diff.nemu_commit_inst_pc;
-    diffMsg += csprintf("In CPU%d: NEMU PC: %#10lx, GEM5 PC: %#10lx, inst: %s\n", cpuId(),
-            nemu_pc, gem5_pc,
-            diffInfo.inst->disassemble(diffInfo.pc->instAddr()).c_str());
 
     if (nemu_pc != gem5_pc) {
         // warn("NEMU store addr: %#lx\n", nemu_store_addr);
@@ -1227,6 +1224,11 @@ BaseCPU::diffWithNEMU(ThreadID tid, InstSeqNum seq)
             }
         }
     }
+    if (diff_at) {
+        diffMsg += csprintf("In CPU%d: NEMU PC: %#10lx, GEM5 PC: %#10lx, inst: %s\n", cpuId(),
+        nemu_pc, gem5_pc,
+        diffInfo.inst->disassemble(diffInfo.pc->instAddr()).c_str());
+    }
     return std::make_pair(diff_at, npc_match);
 }