clang
3.7.0
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A cleanup scope which generates the cleanup blocks lazily. More...
#include <CGCleanup.h>
Public Member Functions | |
size_t | getAllocatedSize () const |
EHCleanupScope (bool isNormal, bool isEH, bool isActive, unsigned cleanupSize, unsigned fixupDepth, EHScopeStack::stable_iterator enclosingNormal, EHScopeStack::stable_iterator enclosingEH) | |
void | Destroy () |
~EHCleanupScope ()=delete | |
bool | isNormalCleanup () const |
llvm::BasicBlock * | getNormalBlock () const |
void | setNormalBlock (llvm::BasicBlock *BB) |
bool | isEHCleanup () const |
bool | isActive () const |
void | setActive (bool A) |
bool | isLifetimeMarker () const |
void | setLifetimeMarker () |
llvm::AllocaInst * | getActiveFlag () const |
void | setActiveFlag (llvm::AllocaInst *Var) |
void | setTestFlagInNormalCleanup () |
bool | shouldTestFlagInNormalCleanup () const |
void | setTestFlagInEHCleanup () |
bool | shouldTestFlagInEHCleanup () const |
unsigned | getFixupDepth () const |
EHScopeStack::stable_iterator | getEnclosingNormalCleanup () const |
size_t | getCleanupSize () const |
void * | getCleanupBuffer () |
EHScopeStack::Cleanup * | getCleanup () |
bool | hasBranches () const |
True if this cleanup scope has any branch-afters or branch-throughs. More... | |
void | addBranchAfter (llvm::ConstantInt *Index, llvm::BasicBlock *Block) |
unsigned | getNumBranchAfters () const |
Return the number of unique branch-afters on this scope. More... | |
llvm::BasicBlock * | getBranchAfterBlock (unsigned I) const |
llvm::ConstantInt * | getBranchAfterIndex (unsigned I) const |
bool | addBranchThrough (llvm::BasicBlock *Block) |
bool | hasBranchThroughs () const |
Determines if this cleanup scope has any branch throughs. More... | |
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EHScope (Kind kind, EHScopeStack::stable_iterator enclosingEHScope) | |
Kind | getKind () const |
llvm::BasicBlock * | getCachedLandingPad () const |
void | setCachedLandingPad (llvm::BasicBlock *block) |
llvm::BasicBlock * | getCachedEHDispatchBlock () const |
void | setCachedEHDispatchBlock (llvm::BasicBlock *block) |
bool | hasEHBranches () const |
EHScopeStack::stable_iterator | getEnclosingEHScope () const |
Static Public Member Functions | |
static size_t | getSizeForCleanupSize (size_t Size) |
static bool | classof (const EHScope *Scope) |
Additional Inherited Members | |
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enum | Kind { Cleanup, Catch, Terminate, Filter } |
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union { | |
CommonBitFields CommonBits | |
CatchBitFields CatchBits | |
CleanupBitFields CleanupBits | |
FilterBitFields FilterBits | |
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A cleanup scope which generates the cleanup blocks lazily.
Definition at line 219 of file CGCleanup.h.
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Definition at line 269 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits, and isActive().
Referenced by getAllocatedSize(), and getSizeForCleanupSize().
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Add a branch-after to this cleanup scope. A branch-after is a branch from a point protected by this (normal) cleanup to a point in the normal cleanup scope immediately containing it. For example, for (;;) { A a; break; } contains a branch-after.
Branch-afters each have their own destination out of the cleanup, guaranteed distinct from anything else threaded through it. Therefore branch-afters usually force a switch after the cleanup.
Definition at line 348 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitBranchThroughCleanup().
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Add a branch-through to this cleanup scope. A branch-through is a branch from a scope protected by this (normal) cleanup to an enclosing scope other than the immediately-enclosing normal cleanup scope.
In the following example, the branch through B's scope is a branch-through, while the branch through A's scope is a branch-after: for (;;) { A a; B b; break; }
All branch-throughs have a common destination out of the cleanup, one possibly shared with the fall-through. Therefore branch-throughs usually don't force a switch after the cleanup.
Definition at line 385 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitBranchThroughCleanup().
Definition at line 395 of file CGCleanup.h.
References clang::CodeGen::EHScope::Cleanup, and clang::CodeGen::EHScope::getKind().
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Definition at line 287 of file CGCleanup.h.
Referenced by clang::CodeGen::EHScopeStack::popCleanup().
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Definition at line 305 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::initFullExprCleanup(), clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and SetupCleanupBlockActivation().
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Definition at line 265 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits, and EHCleanupScope().
Referenced by clang::CodeGen::EHScopeStack::iterator::operator++(), and clang::CodeGen::EHScopeStack::popCleanup().
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Definition at line 360 of file CGCleanup.h.
References getNumBranchAfters().
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 365 of file CGCleanup.h.
References getNumBranchAfters().
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 330 of file CGCleanup.h.
References getCleanupBuffer().
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Definition at line 328 of file CGCleanup.h.
Referenced by getCleanup(), and clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 327 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 323 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitBranchThroughCleanup(), clang::CodeGen::EHScopeStack::getInnermostActiveNormalCleanup(), clang::CodeGen::EHScopeStack::popCleanup(), clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and clang::CodeGen::CodeGenFunction::PopCleanupBlocks().
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Definition at line 322 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 294 of file CGCleanup.h.
Referenced by CreateNormalEntry(), destroyOptimisticNormalEntry(), and clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Return the number of unique branch-afters on this scope.
Definition at line 356 of file CGCleanup.h.
Referenced by getBranchAfterBlock(), getBranchAfterIndex(), and clang::CodeGen::CodeGenFunction::PopCleanupBlock().
Gets the size required for a lazy cleanup scope with the given cleanup-data requirements.
Definition at line 261 of file CGCleanup.h.
References EHCleanupScope().
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True if this cleanup scope has any branch-afters or branch-throughs.
Definition at line 335 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Determines if this cleanup scope has any branch throughs.
Definition at line 390 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 299 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by EHCleanupScope(), clang::CodeGen::EHScopeStack::getInnermostActiveEHScope(), clang::CodeGen::EHScopeStack::getInnermostActiveNormalCleanup(), and clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 297 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::initFullExprCleanup(), clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and SetupCleanupBlockActivation().
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Definition at line 302 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::EHScopeStack::containsOnlyLifetimeMarkers().
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Definition at line 293 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by CreateNormalEntry(), clang::CodeGen::CodeGenFunction::EmitBranchThroughCleanup(), clang::CodeGen::CodeGenFunction::initFullExprCleanup(), clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and SetupCleanupBlockActivation().
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Definition at line 300 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
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Definition at line 306 of file CGCleanup.h.
Referenced by clang::CodeGen::CodeGenFunction::initFullExprCleanup(), and SetupCleanupBlockActivation().
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Definition at line 303 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::EmitAutoVarCleanups().
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Definition at line 295 of file CGCleanup.h.
Referenced by CreateNormalEntry().
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Definition at line 315 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::initFullExprCleanup(), and SetupCleanupBlockActivation().
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Definition at line 308 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::initFullExprCleanup(), and SetupCleanupBlockActivation().
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Definition at line 318 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().
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Definition at line 311 of file CGCleanup.h.
References clang::CodeGen::EHScope::CleanupBits.
Referenced by clang::CodeGen::CodeGenFunction::PopCleanupBlock().