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-rw-r--r--src/cpu/o3/rename_impl.hh102
1 files changed, 32 insertions, 70 deletions
diff --git a/src/cpu/o3/rename_impl.hh b/src/cpu/o3/rename_impl.hh
index a92792639..9c9b030f5 100644
--- a/src/cpu/o3/rename_impl.hh
+++ b/src/cpu/o3/rename_impl.hh
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010-2012, 2014-2015 ARM Limited
+ * Copyright (c) 2010-2012, 2014-2016 ARM Limited
* Copyright (c) 2013 Advanced Micro Devices, Inc.
* All rights reserved.
*
@@ -985,8 +985,8 @@ DefaultRename<Impl>::removeFromHistory(InstSeqNum inst_seq_num, ThreadID tid)
DPRINTF(Rename, "[tid:%u]: Freeing up older rename of reg %i (%s), "
"[sn:%lli].\n",
- tid, hb_it->prevPhysReg->regIdx,
- RegClassStrings[hb_it->prevPhysReg->regClass],
+ tid, hb_it->prevPhysReg->index(),
+ hb_it->prevPhysReg->className(),
hb_it->instSeqNum);
// Don't free special phys regs like misc and zero regs, which
@@ -1013,59 +1013,46 @@ DefaultRename<Impl>::renameSrcRegs(DynInstPtr &inst, ThreadID tid)
// Get the architectual register numbers from the source and
// operands, and redirect them to the right physical register.
for (int src_idx = 0; src_idx < num_src_regs; src_idx++) {
- RegId src_reg = inst->srcRegIdx(src_idx);
- RegIndex flat_src_reg;
+ const RegId& src_reg = inst->srcRegIdx(src_idx);
PhysRegIdPtr renamed_reg;
- switch (src_reg.regClass) {
+ renamed_reg = map->lookup(tc->flattenRegId(src_reg));
+ switch (src_reg.classValue()) {
case IntRegClass:
- flat_src_reg = tc->flattenIntIndex(src_reg.regIdx);
- renamed_reg = map->lookupInt(flat_src_reg);
intRenameLookups++;
break;
-
case FloatRegClass:
- flat_src_reg = tc->flattenFloatIndex(src_reg.regIdx);
- renamed_reg = map->lookupFloat(flat_src_reg);
fpRenameLookups++;
break;
-
case CCRegClass:
- flat_src_reg = tc->flattenCCIndex(src_reg.regIdx);
- renamed_reg = map->lookupCC(flat_src_reg);
- break;
-
case MiscRegClass:
- // misc regs don't get flattened
- flat_src_reg = src_reg.regIdx;
- renamed_reg = map->lookupMisc(flat_src_reg);
break;
default:
- panic("Invalid register class: %d.", src_reg.regClass);
+ panic("Invalid register class: %d.", src_reg.classValue());
}
DPRINTF(Rename, "[tid:%u]: Looking up %s arch reg %i"
- " (flattened %i), got phys reg %i (%s)\n", tid,
- RegClassStrings[src_reg.regClass], src_reg.regIdx,
- flat_src_reg, renamed_reg->regIdx,
- RegClassStrings[renamed_reg->regClass]);
+ ", got phys reg %i (%s)\n", tid,
+ src_reg.className(), src_reg.index(),
+ renamed_reg->index(),
+ renamed_reg->className());
inst->renameSrcReg(src_idx, renamed_reg);
// See if the register is ready or not.
if (scoreboard->getReg(renamed_reg)) {
DPRINTF(Rename, "[tid:%u]: Register %d (flat: %d) (%s)"
- " is ready.\n", tid, renamed_reg->regIdx,
- renamed_reg->flatIdx,
- RegClassStrings[renamed_reg->regClass]);
+ " is ready.\n", tid, renamed_reg->index(),
+ renamed_reg->flatIndex(),
+ renamed_reg->className());
inst->markSrcRegReady(src_idx);
} else {
DPRINTF(Rename, "[tid:%u]: Register %d (flat: %d) (%s)"
- " is not ready.\n", tid, renamed_reg->regIdx,
- renamed_reg->flatIdx,
- RegClassStrings[renamed_reg->regClass]);
+ " is not ready.\n", tid, renamed_reg->index(),
+ renamed_reg->flatIndex(),
+ renamed_reg->className());
}
++renameRenameLookups;
@@ -1082,51 +1069,26 @@ DefaultRename<Impl>::renameDestRegs(DynInstPtr &inst, ThreadID tid)
// Rename the destination registers.
for (int dest_idx = 0; dest_idx < num_dest_regs; dest_idx++) {
- RegId dest_reg = inst->destRegIdx(dest_idx);
- RegIndex flat_dest_reg;
+ const RegId& dest_reg = inst->destRegIdx(dest_idx);
typename RenameMap::RenameInfo rename_result;
- switch (dest_reg.regClass) {
- case IntRegClass:
- flat_dest_reg = tc->flattenIntIndex(dest_reg.regIdx);
- rename_result = map->renameInt(flat_dest_reg);
- break;
-
- case FloatRegClass:
- flat_dest_reg = tc->flattenFloatIndex(dest_reg.regIdx);
- rename_result = map->renameFloat(flat_dest_reg);
- break;
-
- case CCRegClass:
- flat_dest_reg = tc->flattenCCIndex(dest_reg.regIdx);
- rename_result = map->renameCC(flat_dest_reg);
- break;
-
- case MiscRegClass:
- // misc regs don't get flattened
- flat_dest_reg = dest_reg.regIdx;
- rename_result = map->renameMisc(dest_reg.regIdx);
- break;
-
- default:
- panic("Invalid register class: %d.", dest_reg.regClass);
- }
+ RegId flat_dest_regid = tc->flattenRegId(dest_reg);
- RegId flat_uni_dest_reg(dest_reg.regClass, flat_dest_reg);
+ rename_result = map->rename(flat_dest_regid);
- inst->flattenDestReg(dest_idx, flat_uni_dest_reg);
+ inst->flattenDestReg(dest_idx, flat_dest_regid);
// Mark Scoreboard entry as not ready
scoreboard->unsetReg(rename_result.first);
DPRINTF(Rename, "[tid:%u]: Renaming arch reg %i (%s) to physical "
- "reg %i (%i).\n", tid, dest_reg.regIdx,
- RegClassStrings[dest_reg.regClass],
- rename_result.first->regIdx,
- rename_result.first->flatIdx);
+ "reg %i (%i).\n", tid, dest_reg.index(),
+ dest_reg.className(),
+ rename_result.first->index(),
+ rename_result.first->flatIndex());
// Record the rename information so that a history can be kept.
- RenameHistory hb_entry(inst->seqNum, flat_uni_dest_reg,
+ RenameHistory hb_entry(inst->seqNum, flat_dest_regid,
rename_result.first,
rename_result.second);
@@ -1439,12 +1401,12 @@ DefaultRename<Impl>::dumpHistory()
cprintf("Seq num: %i\nArch reg[%s]: %i New phys reg:"
" %i[%s] Old phys reg: %i[%s]\n",
(*buf_it).instSeqNum,
- RegClassStrings[(*buf_it).archReg.regClass],
- (*buf_it).archReg.regIdx,
- (*buf_it).newPhysReg->regIdx,
- RegClassStrings[(*buf_it).newPhysReg->regClass],
- (*buf_it).prevPhysReg->regIdx,
- RegClassStrings[(*buf_it).prevPhysReg->regClass]);
+ (*buf_it).archReg.className(),
+ (*buf_it).archReg.index(),
+ (*buf_it).newPhysReg->index(),
+ (*buf_it).newPhysReg->className(),
+ (*buf_it).prevPhysReg->index(),
+ (*buf_it).prevPhysReg->className());
buf_it++;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 01:43:58 +0000