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Showing content from https://clang.llvm.org/doxygen/InterpStack_8cpp_source.html below:

clang: lib/AST/ByteCode/InterpStack.cpp Source File

Go to the documentation of this file. 19using namespace clang

;

25 if

(Chunk && Chunk->Next)

26

std::free(Chunk->Next);

37

assert(NewSize <=

size

());

38 size_t

ToShrink =

size

() - NewSize;

43

assert(

size

() == NewSize);

46void

*InterpStack::grow(

size_t

Size) {

47

assert(Size < ChunkSize -

sizeof

(StackChunk) &&

"Object too large"

);

49 if

(!Chunk ||

sizeof

(StackChunk) + Chunk->size() + Size > ChunkSize) {

50 if

(Chunk && Chunk->Next) {

53

StackChunk *Next =

new

(std::malloc(ChunkSize)) StackChunk(Chunk);

60 auto

*

Object

=

reinterpret_cast<void

*

>

(Chunk->End);

66void

*InterpStack::peekData(

size_t

Size)

const

{

67

assert(Chunk &&

"Stack is empty!"

);

69

StackChunk *Ptr = Chunk;

70 while

(Size > Ptr->size()) {

73

assert(Ptr &&

"Offset too large"

);

76 return reinterpret_cast<void

*

>

(Ptr->End -

Size

);

79void

InterpStack::shrink(

size_t

Size) {

80

assert(Chunk &&

"Chunk is empty!"

);

82 while

(Size > Chunk->size()) {

83 Size

-= Chunk->size();

85

std::free(Chunk->Next);

86

Chunk->Next =

nullptr

;

88

Chunk->End = Chunk->start();

90

assert(Chunk &&

"Offset too large"

);

101 size_t

StackSize =

size

();

102 while

(TypesSize > StackSize) {

104

TypesSize -= aligned_size<T>();

105

ItemTypes.pop_back();

108

assert(TypesSize == StackSize);

114

llvm::errs() <<

"Items: "

<< ItemTypes.size() <<

". Size: "

<<

size

() <<

'\n'

;

115 if

(ItemTypes.empty())

123 for

(

auto

TyIt = ItemTypes.rbegin(); TyIt != ItemTypes.rend(); ++TyIt) {

126

llvm::errs() << Index <<

'/'

<< Offset <<

": "

;

128 const T

&

V

= peek<T>(Offset);

131

llvm::errs() <<

'\n'

;

#define TYPE_SWITCH(Expr, B)

void clearTo(size_t NewSize)

void dump() const

dump the stack contents to stderr.

void clear()

Clears the stack without calling any destructors.

size_t size() const

Returns the size of the stack in bytes.

~InterpStack()

Destroys the stack, freeing up storage.

constexpr size_t align(size_t Size)

Aligns a size to the pointer alignment.

PrimType

Enumeration of the primitive types of the VM.

size_t primSize(PrimType Type)

Returns the size of a primitive type in bytes.

The JSON file list parser is used to communicate input to InstallAPI.

const FunctionProtoType * T

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