diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-08-20 20:50:12 +0000 |
---|---|---|
committer | Dimitry Andric <dim@FreeBSD.org> | 2019-08-20 20:50:12 +0000 |
commit | e6d1592492a3a379186bfb02bd0f4eda0669c0d5 (patch) | |
tree | 599ab169a01f1c86eda9adc774edaedde2f2db5b /lib/Analysis/ObjCARCAliasAnalysis.cpp | |
parent | 1a56a5ead7a2e84bee8240f5f6b033b5f1707154 (diff) |
Diffstat (limited to 'lib/Analysis/ObjCARCAliasAnalysis.cpp')
-rw-r--r-- | lib/Analysis/ObjCARCAliasAnalysis.cpp | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/lib/Analysis/ObjCARCAliasAnalysis.cpp b/lib/Analysis/ObjCARCAliasAnalysis.cpp index 95ae1a6e744f..811033e73147 100644 --- a/lib/Analysis/ObjCARCAliasAnalysis.cpp +++ b/lib/Analysis/ObjCARCAliasAnalysis.cpp @@ -1,9 +1,8 @@ //===- ObjCARCAliasAnalysis.cpp - ObjC ARC Optimization -------------------===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// 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 // //===----------------------------------------------------------------------===// /// \file @@ -38,9 +37,10 @@ using namespace llvm; using namespace llvm::objcarc; AliasResult ObjCARCAAResult::alias(const MemoryLocation &LocA, - const MemoryLocation &LocB) { + const MemoryLocation &LocB, + AAQueryInfo &AAQI) { if (!EnableARCOpts) - return AAResultBase::alias(LocA, LocB); + return AAResultBase::alias(LocA, LocB, AAQI); // First, strip off no-ops, including ObjC-specific no-ops, and try making a // precise alias query. @@ -48,7 +48,7 @@ AliasResult ObjCARCAAResult::alias(const MemoryLocation &LocA, const Value *SB = GetRCIdentityRoot(LocB.Ptr); AliasResult Result = AAResultBase::alias(MemoryLocation(SA, LocA.Size, LocA.AATags), - MemoryLocation(SB, LocB.Size, LocB.AATags)); + MemoryLocation(SB, LocB.Size, LocB.AATags), AAQI); if (Result != MayAlias) return Result; @@ -57,7 +57,7 @@ AliasResult ObjCARCAAResult::alias(const MemoryLocation &LocA, const Value *UA = GetUnderlyingObjCPtr(SA, DL); const Value *UB = GetUnderlyingObjCPtr(SB, DL); if (UA != SA || UB != SB) { - Result = AAResultBase::alias(MemoryLocation(UA), MemoryLocation(UB)); + Result = AAResultBase::alias(MemoryLocation(UA), MemoryLocation(UB), AAQI); // We can't use MustAlias or PartialAlias results here because // GetUnderlyingObjCPtr may return an offsetted pointer value. if (Result == NoAlias) @@ -70,22 +70,23 @@ AliasResult ObjCARCAAResult::alias(const MemoryLocation &LocA, } bool ObjCARCAAResult::pointsToConstantMemory(const MemoryLocation &Loc, - bool OrLocal) { + AAQueryInfo &AAQI, bool OrLocal) { if (!EnableARCOpts) - return AAResultBase::pointsToConstantMemory(Loc, OrLocal); + return AAResultBase::pointsToConstantMemory(Loc, AAQI, OrLocal); // First, strip off no-ops, including ObjC-specific no-ops, and try making // a precise alias query. const Value *S = GetRCIdentityRoot(Loc.Ptr); if (AAResultBase::pointsToConstantMemory( - MemoryLocation(S, Loc.Size, Loc.AATags), OrLocal)) + MemoryLocation(S, Loc.Size, Loc.AATags), AAQI, OrLocal)) return true; // If that failed, climb to the underlying object, including climbing through // ObjC-specific no-ops, and try making an imprecise alias query. const Value *U = GetUnderlyingObjCPtr(S, DL); if (U != S) - return AAResultBase::pointsToConstantMemory(MemoryLocation(U), OrLocal); + return AAResultBase::pointsToConstantMemory(MemoryLocation(U), AAQI, + OrLocal); // If that failed, fail. We don't need to chain here, since that's covered // by the earlier precise query. @@ -107,9 +108,10 @@ FunctionModRefBehavior ObjCARCAAResult::getModRefBehavior(const Function *F) { } ModRefInfo ObjCARCAAResult::getModRefInfo(const CallBase *Call, - const MemoryLocation &Loc) { + const MemoryLocation &Loc, + AAQueryInfo &AAQI) { if (!EnableARCOpts) - return AAResultBase::getModRefInfo(Call, Loc); + return AAResultBase::getModRefInfo(Call, Loc, AAQI); switch (GetBasicARCInstKind(Call)) { case ARCInstKind::Retain: @@ -128,7 +130,7 @@ ModRefInfo ObjCARCAAResult::getModRefInfo(const CallBase *Call, break; } - return AAResultBase::getModRefInfo(Call, Loc); + return AAResultBase::getModRefInfo(Call, Loc, AAQI); } ObjCARCAAResult ObjCARCAA::run(Function &F, FunctionAnalysisManager &AM) { |