1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
//===--- MoveOnlyTempAllocationFromLetTester.cpp --------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 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 A simple tester for the utility function
/// eliminateTemporaryAllocationsFromLet that allows us to write separate SIL
/// test cases for the utility.
///
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "sil-move-only-checker"
#include "MoveOnlyAddressCheckerUtils.h"
#include "MoveOnlyDiagnostics.h"
#include "MoveOnlyUtils.h"
#include "swift/SILOptimizer/PassManager/Passes.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
using namespace swift;
using namespace swift::siloptimizer;
namespace {
struct MoveOnlyTempAllocationFromLetTester : SILFunctionTransform {
void run() override {
auto *fn = getFunction();
// Don't rerun diagnostics on deserialized functions.
if (getFunction()->wasDeserializedCanonical())
return;
assert(fn->getModule().getStage() == SILStage::Raw &&
"Should only run on Raw SIL");
LLVM_DEBUG(llvm::dbgs()
<< "===> MoveOnlyTempAllocationFromLetTester. Visiting: "
<< fn->getName() << '\n');
llvm::SmallSetVector<MarkUnresolvedNonCopyableValueInst *, 32>
moveIntroducersToProcess;
DiagnosticEmitter diagnosticEmitter(getFunction());
unsigned diagCount = diagnosticEmitter.getDiagnosticCount();
searchForCandidateAddressMarkUnresolvedNonCopyableValueInsts(
getFunction(), getAnalysis<PostOrderAnalysis>(),
moveIntroducersToProcess, diagnosticEmitter);
// Return early if we emitted a diagnostic.
if (diagCount != diagnosticEmitter.getDiagnosticCount())
return;
bool madeChange = false;
while (!moveIntroducersToProcess.empty()) {
auto *next = moveIntroducersToProcess.pop_back_val();
madeChange |= eliminateTemporaryAllocationsFromLet(next);
}
if (madeChange)
invalidateAnalysis(SILAnalysis::InvalidationKind::Instructions);
}
};
} // namespace
SILTransform *swift::createMoveOnlyTempAllocationFromLetTester() {
return new MoveOnlyTempAllocationFromLetTester();
}
|
