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cpu: Add VecElem entries in MinorCPU Scoreboard

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This patch is:
* Increasing the number of bits in the Scoreboard so that
  it is keeping track of VecElemClass dependencies.
* Fixing VecElemClass entry in the scoreboard table so that it
  correctly uses flatIndex rather than index.

Change-Id: Ie4877e5fe410b1437447adebbe289602a443f7c0
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15597
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
This commit is contained in:
Giacomo Travaglini
2019-01-10 11:17:09 +00:00
parent 4d44889635
commit e7c8154479
2 changed files with 3 additions and 2 deletions
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2
src/cpu/minor/scoreboard.cc
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@@ -74,7 +74,7 @@ Scoreboard::findIndex(const RegId& reg, Index &scoreboard_index)
break;
case VecElemClass:
scoreboard_index = TheISA::NumIntRegs + TheISA::NumCCRegs +
TheISA::NumFloatRegs + TheISA::NumVecRegs + reg.index();
TheISA::NumFloatRegs + reg.flatIndex();
ret = true;
break;
case CCRegClass:

3
src/cpu/minor/scoreboard.hh
View File

@@ -94,7 +94,8 @@ class Scoreboard : public Named
Scoreboard(const std::string &name) :
Named(name),
numRegs(TheISA::NumIntRegs + TheISA::NumCCRegs +
TheISA::NumFloatRegs + TheISA::NumVecRegs),
TheISA::NumFloatRegs +
(TheISA::NumVecRegs * TheISA::NumVecElemPerVecReg)),
numResults(numRegs, 0),
numUnpredictableResults(numRegs, 0),
fuIndices(numRegs, 0),