diff options
| -rw-r--r-- | utils/PerfectShuffle/PerfectShuffle.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/utils/PerfectShuffle/PerfectShuffle.cpp b/utils/PerfectShuffle/PerfectShuffle.cpp index 5a0c2babfc..0ec42f13aa 100644 --- a/utils/PerfectShuffle/PerfectShuffle.cpp +++ b/utils/PerfectShuffle/PerfectShuffle.cpp @@ -104,9 +104,11 @@ struct Operator { unsigned short ShuffleMask; unsigned short OpNum; const char *Name; - - Operator(unsigned short shufflemask, const char *name, unsigned opnum) - : ShuffleMask(shufflemask), OpNum(opnum), Name(name) { + unsigned Cost; + + Operator(unsigned short shufflemask, const char *name, unsigned opnum, + unsigned cost = 1) + : ShuffleMask(shufflemask), OpNum(opnum), Name(name), Cost(cost) { TheOperators.push_back(this); } ~Operator() { @@ -119,7 +121,8 @@ struct Operator { } const char *getName() const { return Name; } - + unsigned getCost() const { return Cost; } + unsigned short getTransformedMask(unsigned short LHSMask, unsigned RHSMask) { // Extract the elements from LHSMask and RHSMask, as appropriate. unsigned Result = 0; @@ -302,7 +305,7 @@ int main() { // Evaluate op(LHS,LHS) unsigned ResultMask = Op->getTransformedMask(LHS, LHS); - unsigned Cost = ShufTab[LHS].Cost + 1; + unsigned Cost = ShufTab[LHS].Cost + Op->getCost(); if (Cost < ShufTab[ResultMask].Cost) { ShufTab[ResultMask].Cost = Cost; ShufTab[ResultMask].Op = Op; @@ -340,7 +343,7 @@ int main() { EvaluateOps(LHS, Vals, NumVals); EvaluateOps(RHS, Vals, NumVals); - unsigned Cost = NumVals + 1; + unsigned Cost = NumVals + Op->getCost(); if (Cost < ShufTab[ResultMask].Cost) { ShufTab[ResultMask].Cost = Cost; ShufTab[ResultMask].Op = Op; |