Add IFT debug flags

1 files changed, 11 insertions, 1 deletions

diff --git a/src/cpu/o3/dyn_inst.hh b/src/cpu/o3/dyn_inst.hh
index d3c67c4cb..22b4bb12a 100644
--- a/src/cpu/o3/dyn_inst.hh
+++ b/src/cpu/o3/dyn_inst.hh
@@ -53,6 +53,7 @@
 #include "cpu/base_dyn_inst.hh"
 #include "cpu/inst_seq.hh"
 #include "cpu/reg_class.hh"
+#include "debug/IFT.hh"
 
 class Packet;
 
@@ -416,8 +417,12 @@ class BaseO3DynInst : public BaseDynInst<Impl>
         BaseDynInst<Impl>::setCCRegOperand(si, idx, val);
     }
 
-    void taintDestRegs(bool istaint)
+    void taintDestRegs(bool istaint, const char *reason)
     {
+        DPRINTF(IFT, "%s dst registers of instruction PC: %s [sn:%i] because %s\n",
+                istaint?"Tainting":"Untainting",
+                this->pcState(), this->seqNum,
+                reason);
         isTainted = istaint;
         for (size_t i = 0; i < this->numDestRegs(); i++) {
             auto dstreg = _destRegIdx[i];
@@ -431,11 +436,16 @@ class BaseO3DynInst : public BaseDynInst<Impl>
 
     bool srcTainted(void)
     {
+        DPRINTF(IFT, "checking instruction PC: %s [sn:%i] for tainted registers.\n",
+                this->pcState(), this->seqNum);
         bool result = false;
         for (size_t i = 0; i < this->numSrcRegs(); i++) {
             auto src = _srcRegIdx[i];
             result |= cpu->regTainted(src);
         }
+        DPRINTF(IFT, "source registers of instruction PC: %s [sn:%i] is %s\n",
+                this->pcState(), this->seqNum,
+                result?"tainted":"not tainted");
         return result;
     }