From b6141109804bf4637345d5b8079c9a6debee285c Mon Sep 17 00:00:00 2001
From: Iru Cai <mytbk920423@gmail.com>
Date: Mon, 8 Apr 2019 10:42:39 +0800
Subject: implement taint propagation

---
 src/cpu/base_dyn_inst.hh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/cpu/base_dyn_inst.hh')

diff --git a/src/cpu/base_dyn_inst.hh b/src/cpu/base_dyn_inst.hh
index 756a5aa9f..d533ad9bf 100644
--- a/src/cpu/base_dyn_inst.hh
+++ b/src/cpu/base_dyn_inst.hh
@@ -478,11 +478,15 @@ class BaseDynInst : public ExecContext, public RefCounted
         _prevDestRegIdx[idx] = previous_rename;
     }
 
-    void taintDestRegs(void)
+    void taintDestRegs(bool istaint)
     {
         for (size_t i = 0; i < numDestRegs(); i++) {
             auto dstreg = _destRegIdx[i];
-            cpu->setTaint(dstreg);
+            if (istaint) {
+                cpu->setTaint(dstreg);
+            } else {
+                cpu->clearTaint(dstreg);
+            }
         }
     }
 
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