[MCSched] Bind PFM Counters to the CPUs instead of the SchedModel.

Summary:
The pfm counters are now in the ExegesisTarget rather than the
MCSchedModel (PR39165).

This also compresses the pfm counter tables (PR37068).

Reviewers: RKSimon, gchatelet

Subscribers: mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D52932

llvm-svn: 345243

1 files changed, 5 insertions, 2 deletions

diff --git a/llvm/tools/llvm-exegesis/lib/LlvmState.cpp b/llvm/tools/llvm-exegesis/lib/LlvmState.cpp
index 58e9db315d5..b5580c83cf5 100644
--- a/llvm/tools/llvm-exegesis/lib/LlvmState.cpp
+++ b/llvm/tools/llvm-exegesis/lib/LlvmState.cpp
@@ -36,14 +36,17 @@ LLVMState::LLVMState(const std::string &Triple, const std::string &CpuName) {
     llvm::errs() << "no exegesis target for " << Triple << ", using default\n";
     TheExegesisTarget = &ExegesisTarget::getDefault();
   }
+  PfmCounters = &TheExegesisTarget->getPfmCounters(CpuName);
+
   RATC.reset(new RegisterAliasingTrackerCache(
       getRegInfo(), getFunctionReservedRegs(getTargetMachine())));
   IC.reset(new InstructionsCache(getInstrInfo(), getRATC()));
 }
 
-LLVMState::LLVMState()
+LLVMState::LLVMState(const std::string &CpuName)
     : LLVMState(llvm::sys::getProcessTriple(),
-                llvm::sys::getHostCPUName().str()) {}
+                CpuName.empty() ? llvm::sys::getHostCPUName().str() : CpuName) {
+}
 
 std::unique_ptr<llvm::LLVMTargetMachine>
 LLVMState::createTargetMachine() const {