class StackLayout
Declaration
class StackLayout { /* full declaration omitted */ };Description
Compute the layout of an unsafe stack frame.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:24
Member Variables
- private llvm::Align MaxAlignment
- private SmallVector< llvm::safestack::StackLayout::StackRegion, 16> Regions
- The list of current stack regions, sorted by StackRegion::Start.
- private SmallVector< llvm::safestack::StackLayout::StackObject, 8> StackObjects
- private DenseMap<const llvm::Value*, unsigned int> ObjectOffsets
- private DenseMap<const llvm::Value*, llvm::Align> ObjectAlignments
Method Overview
- public StackLayout(llvm::Align StackAlignment)
- public void addObject(const llvm::Value * V, unsigned int Size, llvm::Align Alignment, const StackLifetime::LiveRange & Range)
- public void computeLayout()
- public llvm::Align getFrameAlignment()
- public unsigned int getFrameSize()
- public llvm::Align getObjectAlignment(const llvm::Value * V)
- public unsigned int getObjectOffset(const llvm::Value * V)
- private void layoutObject(llvm::safestack::StackLayout::StackObject & Obj)
- public void print(llvm::raw_ostream & OS)
Methods
¶StackLayout(llvm::Align StackAlignment)
StackLayout(llvm::Align StackAlignment)Declared at: llvm/lib/CodeGen/SafeStackLayout.h:55
Parameters
- llvm::Align StackAlignment
¶void addObject(
const llvm::Value* V,
unsigned int Size,
llvm::Align Alignment,
const StackLifetime::LiveRange& Range)
void addObject(
const llvm::Value* V,
unsigned int Size,
llvm::Align Alignment,
const StackLifetime::LiveRange& Range)Description
Add an object to the stack frame. Value pointer is opaque and used as a handle to retrieve the object's offset in the frame later.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:59
Parameters
- const llvm::Value* V
- unsigned int Size
- llvm::Align Alignment
- const StackLifetime::LiveRange& Range
¶void computeLayout()
void computeLayout()Description
Run the layout computation for all previously added objects.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:63
¶llvm::Align getFrameAlignment()
llvm::Align getFrameAlignment()Description
Returns the alignment of the frame.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:75
¶unsigned int getFrameSize()
unsigned int getFrameSize()Description
Returns the size of the entire frame.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:72
¶llvm::Align getObjectAlignment(
const llvm::Value* V)
llvm::Align getObjectAlignment(
const llvm::Value* V)Description
Returns the alignment of the object
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:69
Parameters
- const llvm::Value* V
¶unsigned int getObjectOffset(const llvm::Value* V)
unsigned int getObjectOffset(const llvm::Value* V)Description
Returns the offset to the object start in the stack frame.
Declared at: llvm/lib/CodeGen/SafeStackLayout.h:66
Parameters
- const llvm::Value* V
¶void layoutObject(
llvm::safestack::StackLayout::StackObject&
Obj)
void layoutObject(
llvm::safestack::StackLayout::StackObject&
Obj)Declared at: llvm/lib/CodeGen/SafeStackLayout.h:52
Parameters
¶void print(llvm::raw_ostream& OS)
void print(llvm::raw_ostream& OS)Declared at: llvm/lib/CodeGen/SafeStackLayout.h:77