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//===--- InstCount.cpp - Collects the count of all instructions -----------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This pass collects the count of all instructions and reports them
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "sil-instcount"
#include "swift/SILOptimizer/PassManager/Passes.h"
#include "swift/SILOptimizer/PassManager/PassManager.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
#include "swift/SIL/SILModule.h"
#include "swift/SIL/SILVisitor.h"
#include "llvm/ADT/Statistic.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// Statistics
//===----------------------------------------------------------------------===//
// Local aggregate statistics
STATISTIC(TotalInsts, "Number of instructions (of all types) in non-external "
"functions");
STATISTIC(TotalBlocks, "Number of basic blocks in non-external functions");
STATISTIC(TotalFuncs , "Number of non-external functions");
// External aggregate statistics
STATISTIC(TotalExternalFuncInsts, "Number of instructions (of all types) in "
"external functions");
STATISTIC(TotalExternalFuncBlocks, "Number of basic blocks in external "
"functions");
STATISTIC(TotalExternalFuncDefs, "Number of external funcs definitions");
STATISTIC(TotalExternalFuncDecls, "Number of external funcs declarations");
// Linkage statistics
STATISTIC(TotalPublicFuncs, "Number of public funcs");
STATISTIC(TotalPublicNonABIFuncs, "Number of public non-ABI funcs");
STATISTIC(TotalPackageFuncs, "Number of package funcs");
STATISTIC(TotalPackageNonABIFuncs, "Number of package non-ABI funcs");
STATISTIC(TotalHiddenFuncs, "Number of hidden funcs");
STATISTIC(TotalPrivateFuncs, "Number of private funcs");
STATISTIC(TotalSharedFuncs, "Number of shared funcs");
STATISTIC(TotalPublicExternalFuncs, "Number of public external funcs");
STATISTIC(TotalPackageExternalFuncs, "Number of package external funcs");
STATISTIC(TotalHiddenExternalFuncs, "Number of hidden external funcs");
// Individual instruction statistics
#define INST(Id, Parent) \
STATISTIC(Num##Id, "Number of " #Id);
#include "swift/SIL/SILNodes.def"
namespace {
struct InstCountVisitor : SILInstructionVisitor<InstCountVisitor> {
// We store these locally so that we do not continually check if the function
// is external or not. Instead, we just check once at the end and accumulate.
unsigned InstCount = 0;
unsigned BlockCount = 0;
void visitSILBasicBlock(SILBasicBlock *BB) {
++BlockCount;
SILInstructionVisitor<InstCountVisitor>::visitSILBasicBlock(BB);
}
void visitSILFunction(SILFunction *F) {
SILInstructionVisitor<InstCountVisitor>::visitSILFunction(F);
}
void visitValueBase(ValueBase *V) { }
#define INST(Id, Parent) \
void visit##Id(Id *I) { \
++Num##Id; \
++InstCount; \
}
#include "swift/SIL/SILNodes.def"
};
} // end anonymous namespace
//===----------------------------------------------------------------------===//
// Top Level Driver
//===----------------------------------------------------------------------===//
namespace {
class InstCount : public SILFunctionTransform {
/// The entry point to the transformation.
void run() override {
SILFunction *F = getFunction();
InstCountVisitor V;
V.visitSILFunction(F);
if (F->isAvailableExternally()) {
if (F->isDefinition()) {
TotalExternalFuncInsts += V.InstCount;
TotalExternalFuncBlocks += V.BlockCount;
++TotalExternalFuncDefs;
} else {
++TotalExternalFuncDecls;
}
} else {
TotalInsts += V.InstCount;
TotalBlocks += V.BlockCount;
++TotalFuncs;
}
switch (F->getLinkage()) {
case SILLinkage::Public:
++TotalPublicFuncs;
break;
case SILLinkage::PublicNonABI:
++TotalPublicNonABIFuncs;
break;
case SILLinkage::Package:
++TotalPackageFuncs;
break;
case SILLinkage::PackageNonABI:
++TotalPackageNonABIFuncs;
break;
case SILLinkage::Hidden:
++TotalHiddenFuncs;
break;
case SILLinkage::Shared:
++TotalSharedFuncs;
break;
case SILLinkage::Private:
++TotalPrivateFuncs;
break;
case SILLinkage::PublicExternal:
++TotalPublicExternalFuncs;
break;
case SILLinkage::PackageExternal:
++TotalPackageExternalFuncs;
break;
case SILLinkage::HiddenExternal:
++TotalHiddenExternalFuncs;
break;
}
}
};
} // end anonymous namespace
SILTransform *swift::createInstCount() {
return new InstCount();
}
void swift::performSILInstCountIfNeeded(SILModule *M) {
if (!M->getOptions().PrintInstCounts)
return;
executePassPipelinePlan(
M, SILPassPipelinePlan::getInstCountPassPipeline(M->getOptions()));
}
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