diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/inorder/cpu.cc | 1 | ||||
| -rw-r--r-- | src/cpu/inorder/reg_dep_map.cc | 19 | ||||
| -rw-r--r-- | src/cpu/inorder/resources/decode_unit.cc | 4 | ||||
| -rw-r--r-- | src/cpu/inorder/resources/graduation_unit.cc | 4 | ||||
| -rw-r--r-- | src/cpu/inorder/resources/use_def.cc | 20 |
5 files changed, 41 insertions, 7 deletions
diff --git a/src/cpu/inorder/cpu.cc b/src/cpu/inorder/cpu.cc index c7eb35b47..03c44ea86 100644 --- a/src/cpu/inorder/cpu.cc +++ b/src/cpu/inorder/cpu.cc @@ -1312,7 +1312,6 @@ InOrderCPU::instDone(DynInstPtr inst, ThreadID tid) lastCommittedPC[tid] = comm_pc; TheISA::advancePC(comm_pc, inst->staticInst); pcState(comm_pc, tid); - DPRINTF(InOrderGraduation, "Precise State PC = %s\n", pcState(tid)); //@todo: may be unnecessary with new-ISA-specific branch handling code if (inst->isControl()) { diff --git a/src/cpu/inorder/reg_dep_map.cc b/src/cpu/inorder/reg_dep_map.cc index 9898de43d..075c31208 100644 --- a/src/cpu/inorder/reg_dep_map.cc +++ b/src/cpu/inorder/reg_dep_map.cc @@ -103,6 +103,14 @@ RegDepMap::insert(DynInstPtr inst) inst->seqNum, i, raw_idx, flat_idx); inst->flattenDestReg(i, flat_idx); + + if (flat_idx == TheISA::ZeroReg) { + DPRINTF(IntRegs, "[sn:%i]: Ignoring Insert-Dependency tracking for " + "ISA-ZeroReg (Int. Reg %i).\n", inst->seqNum, + flat_idx); + continue; + } + insert(reg_type, flat_idx, inst); } } @@ -134,8 +142,17 @@ RegDepMap::remove(DynInstPtr inst) for (int i = 0; i < dest_regs; i++) { + RegIndex flat_idx = inst->flattenedDestRegIdx(i); + + if (flat_idx == TheISA::ZeroReg) { + DPRINTF(IntRegs, "[sn:%i]: Ignoring Remove-Dependency tracking for " + "ISA-ZeroReg (Int. Reg %i).\n", inst->seqNum, + flat_idx); + continue; + } + InOrderCPU::RegType reg_type = cpu->getRegType(inst->destRegIdx(i)); - remove(reg_type, inst->flattenedDestRegIdx(i), inst); + remove(reg_type, flat_idx, inst); } } } diff --git a/src/cpu/inorder/resources/decode_unit.cc b/src/cpu/inorder/resources/decode_unit.cc index 0ab9d96c7..1ba5c204a 100644 --- a/src/cpu/inorder/resources/decode_unit.cc +++ b/src/cpu/inorder/resources/decode_unit.cc @@ -62,6 +62,10 @@ DecodeUnit::execute(int slot_num) { assert(!inst->staticInst->isMacroop()); + DPRINTF(Decode,"Decoded instruction [sn:%i]: %s : 0x%x\n", + inst->seqNum, inst->instName(), + inst->staticInst->machInst); + inst->setBackSked(cpu->createBackEndSked(inst)); if (inst->backSked != NULL) { diff --git a/src/cpu/inorder/resources/graduation_unit.cc b/src/cpu/inorder/resources/graduation_unit.cc index 9c17db945..641d7b5ad 100644 --- a/src/cpu/inorder/resources/graduation_unit.cc +++ b/src/cpu/inorder/resources/graduation_unit.cc @@ -78,8 +78,8 @@ GraduationUnit::execute(int slot_num) } DPRINTF(InOrderGraduation, - "[tid:%i] Graduating instruction %s [sn:%i].\n", - tid, inst->instName(), inst->seqNum); + "[tid:%i]:[sn:%i]: Graduating instruction %s.\n", + tid, inst->seqNum, inst->instName()); // Release Non-Speculative "Block" on instructions that could not // execute because there was a non-speculative inst. active. diff --git a/src/cpu/inorder/resources/use_def.cc b/src/cpu/inorder/resources/use_def.cc index 392239d42..1adee09db 100644 --- a/src/cpu/inorder/resources/use_def.cc +++ b/src/cpu/inorder/resources/use_def.cc @@ -181,9 +181,16 @@ UseDefUnit::execute(int slot_idx) RegIndex flat_idx = cpu->flattenRegIdx(reg_idx, reg_type, tid); inst->flattenSrcReg(ud_idx, flat_idx); - DPRINTF(InOrderUseDef, "[tid:%i]: [sn:%i]: Attempting to read source " - "register idx %i (reg #%i, flat#%i).\n", - tid, seq_num, ud_idx, reg_idx, flat_idx); + if (flat_idx == TheISA::ZeroReg) { + DPRINTF(InOrderUseDef, "[tid:%i]: [sn:%i]: Ignoring Reading of ISA-ZeroReg " + "(Int. Reg %i).\n", tid, inst->seqNum, flat_idx); + ud_req->done(); + return; + } else { + DPRINTF(InOrderUseDef, "[tid:%i]: [sn:%i]: Attempting to read source " + "register idx %i (reg #%i, flat#%i).\n", + tid, seq_num, ud_idx, reg_idx, flat_idx); + } if (regDepMap[tid]->canRead(reg_type, flat_idx, inst)) { switch (reg_type) @@ -324,6 +331,13 @@ UseDefUnit::execute(int slot_idx) RegIndex reg_idx = inst->_destRegIdx[ud_idx]; RegIndex flat_idx = cpu->flattenRegIdx(reg_idx, reg_type, tid); + if (flat_idx == TheISA::ZeroReg) { + DPRINTF(IntRegs, "[tid:%i]: Ignoring Writing of ISA-ZeroReg " + "(Int. Reg %i)\n", tid, flat_idx); + ud_req->done(); + return; + } + if (regDepMap[tid]->canWrite(reg_type, flat_idx, inst)) { DPRINTF(InOrderUseDef, "[tid:%i]: [sn:%i]: Flattening register idx %i " "(%i) and Attempting to write to Register File.\n", |