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authorvitalyisaev <[email protected]>2023-06-29 10:00:50 +0300
committervitalyisaev <[email protected]>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/lib/Analysis/ObjCARCAnalysisUtils.cpp
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (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.cpp45
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
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+++ 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;
+}