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| author | vitalyisaev <[email protected]> | 2023-06-29 10:00:50 +0300 |
|---|---|---|
| committer | vitalyisaev <[email protected]> | 2023-06-29 10:00:50 +0300 |
| commit | 6ffe9e53658409f212834330e13564e4952558f6 (patch) | |
| tree | 85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp | |
| parent | 726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff) | |
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp')
| -rw-r--r-- | contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp b/contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp new file mode 100644 index 00000000000..d34a3c63636 --- /dev/null +++ b/contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp @@ -0,0 +1,45 @@ +//===- ObjCARCAnalysisUtils.cpp -------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file implements common infrastructure for libLLVMObjCARCOpts.a, which +// implements several scalar transformations over the LLVM intermediate +// representation, including the C bindings for that library. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Analysis/ObjCARCAnalysisUtils.h" +#include "llvm/Analysis/AliasAnalysis.h" +#include "llvm/Support/CommandLine.h" + +using namespace llvm; +using namespace llvm::objcarc; + +/// A handy option to enable/disable all ARC Optimizations. +bool llvm::objcarc::EnableARCOpts; +static cl::opt<bool, true> EnableARCOptimizations( + "enable-objc-arc-opts", cl::desc("enable/disable all ARC Optimizations"), + cl::location(EnableARCOpts), cl::init(true), cl::Hidden); + +bool llvm::objcarc::IsPotentialRetainableObjPtr(const Value *Op, + AAResults &AA) { + // First make the rudimentary check. + if (!IsPotentialRetainableObjPtr(Op)) + return false; + + // Objects in constant memory are not reference-counted. + if (AA.pointsToConstantMemory(Op)) + return false; + + // Pointers in constant memory are not pointing to reference-counted objects. + if (const LoadInst *LI = dyn_cast<LoadInst>(Op)) + if (AA.pointsToConstantMemory(LI->getPointerOperand())) + return false; + + // Otherwise assume the worst. + return true; +} |
