mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
be1881aa1f
At some point, pass definitions were heavily macro-ized. Pass descriptive names were added in two places. This is not only redundant but a source of confusion. You could waste a lot of time grepping for the wrong string. I removed all the getName() overrides which, at around 90 passes, was a fairly significant amount of code bloat. Any pass that we want to be able to invoke by name from a tool (sil-opt) or pipeline plan *should* have unique type name, enum value, commend-line string, and name string. I removed a comment about the various inliner passes that contradicted that. Side note: We should be consistent with the policy that a pass is identified by its type. We have a couple passes, LICM and CSE, which currently violate that convention.
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
//===--- EpilogueRetainReleaseMatcherDumper.cpp - Find Epilogue Releases --===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// This pass finds the epilogue releases matched to each argument of the
|
|
/// function.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DEBUG_TYPE "sil-epilogue-release-dumper"
|
|
#include "swift/SILOptimizer/PassManager/Passes.h"
|
|
#include "swift/SIL/SILArgument.h"
|
|
#include "swift/SIL/SILFunction.h"
|
|
#include "swift/SIL/SILValue.h"
|
|
#include "swift/SILOptimizer/Analysis/AliasAnalysis.h"
|
|
#include "swift/SILOptimizer/Analysis/ARCAnalysis.h"
|
|
#include "swift/SILOptimizer/Analysis/Analysis.h"
|
|
#include "swift/SILOptimizer/Analysis/RCIdentityAnalysis.h"
|
|
#include "swift/SILOptimizer/PassManager/Transforms.h"
|
|
|
|
using namespace swift;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Top Level Driver
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace {
|
|
|
|
/// Find and dump the epilogue release instructions for the arguments.
|
|
class SILEpilogueRetainReleaseMatcherDumper : public SILModuleTransform {
|
|
|
|
void run() override {
|
|
auto *AA = PM->getAnalysis<AliasAnalysis>();
|
|
auto *RCIA = getAnalysis<RCIdentityAnalysis>();
|
|
for (auto &Fn: *getModule()) {
|
|
// Function is not definition.
|
|
if (!Fn.isDefinition())
|
|
continue;
|
|
|
|
llvm::outs() << "START: sil @" << Fn.getName() << "\n";
|
|
|
|
// Handle @owned return value.
|
|
ConsumedResultToEpilogueRetainMatcher RetMap(RCIA->get(&Fn), AA, &Fn);
|
|
for (auto &RI : RetMap)
|
|
llvm::outs() << *RI;
|
|
|
|
// Handle @owned function arguments.
|
|
ConsumedArgToEpilogueReleaseMatcher RelMap(RCIA->get(&Fn), &Fn);
|
|
// Iterate over arguments and dump their epilogue releases.
|
|
for (auto Arg : Fn.getArguments()) {
|
|
llvm::outs() << *Arg;
|
|
// Can not find an epilogue release instruction for the argument.
|
|
for (auto &RI : RelMap.getReleasesForArgument(Arg))
|
|
llvm::outs() << *RI;
|
|
}
|
|
|
|
llvm::outs() << "END: sil @" << Fn.getName() << "\n";
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
} // end anonymous namespace
|
|
|
|
SILTransform *swift::createEpilogueRetainReleaseMatcherDumper() {
|
|
return new SILEpilogueRetainReleaseMatcherDumper();
|
|
}
|