diff options
Diffstat (limited to 'src/cpu/base_dyn_inst.hh')
-rw-r--r-- | src/cpu/base_dyn_inst.hh | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/src/cpu/base_dyn_inst.hh b/src/cpu/base_dyn_inst.hh index 9cc61f74c..40611abe6 100644 --- a/src/cpu/base_dyn_inst.hh +++ b/src/cpu/base_dyn_inst.hh @@ -215,6 +215,9 @@ class BaseDynInst : public FastAlloc, public RefCounted */ Addr nextPC; + /** Next non-speculative NPC. Target PC for Mips or Sparc. */ + Addr nextNPC; + /** Predicted next PC. */ Addr predPC; @@ -275,6 +278,11 @@ class BaseDynInst : public FastAlloc, public RefCounted */ Addr readNextPC() { return nextPC; } + /** Returns the next NPC. This could be the speculative next NPC if it is + * called prior to the actual branch target being calculated. + */ + Addr readNextNPC() { return nextNPC; } + /** Set the predicted target of this current instruction. */ void setPredTarg(Addr predicted_PC) { predPC = predicted_PC; } @@ -282,11 +290,20 @@ class BaseDynInst : public FastAlloc, public RefCounted Addr readPredTarg() { return predPC; } /** Returns whether the instruction was predicted taken or not. */ - bool predTaken() { return predPC != (PC + sizeof(MachInst)); } + bool predTaken() +#if THE_ISA == ALPHA_ISA + { return predPC != (PC + sizeof(MachInst)); } +#else + { return predPC != (nextPC + sizeof(MachInst)); } +#endif /** Returns whether the instruction mispredicted. */ - bool mispredicted() { return predPC != nextPC; } - + bool mispredicted() +#if THE_ISA == ALPHA_ISA + { return predPC != nextPC; } +#else + { return predPC != nextNPC; } +#endif // // Instruction types. Forward checks to StaticInst object. // @@ -308,6 +325,7 @@ class BaseDynInst : public FastAlloc, public RefCounted bool isIndirectCtrl() const { return staticInst->isIndirectCtrl(); } bool isCondCtrl() const { return staticInst->isCondCtrl(); } bool isUncondCtrl() const { return staticInst->isUncondCtrl(); } + bool isCondDelaySlot() const { return staticInst->isCondDelaySlot(); } bool isThreadSync() const { return staticInst->isThreadSync(); } bool isSerializing() const { return staticInst->isSerializing(); } bool isSerializeBefore() const @@ -545,6 +563,12 @@ class BaseDynInst : public FastAlloc, public RefCounted nextPC = val; } + /** Set the next NPC of this instruction (the target in Mips or Sparc).*/ + void setNextNPC(uint64_t val) + { + nextNPC = val; + } + /** Sets the ASID. */ void setASID(short addr_space_id) { asid = addr_space_id; } |