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.
 
 
 
 
 

34 lines
805 B

#include "Endianness.h"
#include "preprocessor/llvm_includes_start.h"
#include <llvm/IR/IntrinsicInst.h>
#include <llvm/Support/Host.h>
#include "preprocessor/llvm_includes_end.h"
#include "Type.h"
namespace dev
{
namespace eth
{
namespace jit
{
llvm::Value* Endianness::bswapIfLE(llvm::IRBuilder<>& _builder, llvm::Value* _word)
{
if (llvm::sys::IsLittleEndianHost)
{
// FIXME: Disabled because of problems with BYTE
//if (auto constant = llvm::dyn_cast<llvm::ConstantInt>(_word))
// return _builder.getInt(constant->getValue().byteSwap());
// OPT: Cache func declaration?
auto bswapFunc = llvm::Intrinsic::getDeclaration(_builder.GetInsertBlock()->getParent()->getParent(), llvm::Intrinsic::bswap, Type::Word);
return _builder.CreateCall(bswapFunc, _word);
}
return _word;
}
}
}
}