search for: ldaddalx

Hi all, I am looking at the scheduling model of the ThunderX2. I am trying to figure out the cost of the LDADDALX instruction. The following program’s output is: name LDADDALX; class 872 microops 65535 I would have assumed that the microops are less than 20. The ThunderX2 has a detailed cost model for LSE. Could somebody tell me what I am doing wrong? Cheers, Tom #define GET_REGINFO_ENUM #include "AAr...

> On Sep 22, 2017, at 10:34 AM, Thorsten Schütt via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi all, > > I am looking at the scheduling model of the ThunderX2. I am trying to figure out the cost of the LDADDALX instruction. The following program’s output is: > name LDADDALX; class 872 > microops 65535 > I would have assumed that the microops are less than 20. The ThunderX2 has a detailed cost model for LSE. Could somebody tell me what I am doing wrong? > > Cheers, > Tom > > #def...

...efine GET_REGINFO_MC_DESC > > #include "AArch64GenRegisterInfo.inc" > > > > int main(int argc, char **argv) { > > llvm::MCInstrInfo II; > > > > llvm::InitAArch64MCInstrInfo(&II); > > > > llvm::StringRef ref = II.getName(llvm::AArch64::LDADDALX); > > llvm::MCInstrDesc d = II.get(llvm::AArch64::LDADDALX); > > > > printf("name %s; class %d\n", ref.str().c_str(), d.SchedClass); > > > > printf("microops %d\n", llvm::ThunderX2T99Model.getSchedClassDesc(d. > SchedClass)->NumMicroOps); &...