You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.1 KiB
59 lines
1.1 KiB
|
|
#pragma once
|
|
|
|
#include <vector>
|
|
|
|
#include <llvm/IR/IRBuilder.h>
|
|
|
|
namespace evmcc
|
|
{
|
|
class BasicBlock;
|
|
|
|
class Stack
|
|
{
|
|
public:
|
|
Stack(llvm::IRBuilder<>& _builder, llvm::Module* _module);
|
|
|
|
void push(llvm::Value* _value);
|
|
llvm::Value* pop();
|
|
llvm::Value* top();
|
|
llvm::Value* get(uint32_t _index);
|
|
void set(uint32_t _index, llvm::Value* _value);
|
|
|
|
private:
|
|
llvm::IRBuilder<>& m_builder;
|
|
llvm::Value* m_stackVal;
|
|
llvm::Function* m_stackPush;
|
|
llvm::Function* m_stackPop;
|
|
llvm::Function* m_stackGet;
|
|
llvm::Function* m_stackSet;
|
|
};
|
|
|
|
/**
|
|
Stack adapter for Basic Block
|
|
|
|
Transforms stack to SSA: tracks values and their positions on the imaginary stack used inside a basic block.
|
|
*/
|
|
class BBStack
|
|
{
|
|
public:
|
|
BBStack(llvm::IRBuilder<>& _builder, Stack& _extStack);
|
|
|
|
void push(llvm::Value* _value);
|
|
llvm::Value* pop();
|
|
void dup(size_t _index);
|
|
void swap(size_t _index);
|
|
|
|
/**
|
|
Changes current basic block with a new one with empty state.
|
|
*/
|
|
void setBasicBlock(BasicBlock& _newBlock);
|
|
|
|
private:
|
|
Stack& m_extStack; ///< External (global) stack
|
|
BasicBlock* m_block = nullptr; ///< Current basic block
|
|
llvm::IRBuilder<>& m_builder;
|
|
};
|
|
|
|
|
|
}
|