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Improve PUSH compilation

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This commit is contained in:
Paweł Bylica 2014-10-30 16:29:14 +01:00
parent 2bbbf6c3c4
commit 85f67a5582
1 changed files with 5 additions and 6 deletions
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11
libevmjit/Compiler.cpp
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@ -552,16 +552,15 @@ void Compiler::compileBasicBlock(BasicBlock& basicBlock, bytesConstRef bytecode,
case Instruction::ANY_PUSH:
{
auto numBytes = static_cast<size_t>(inst) - static_cast<size_t>(Instruction::PUSH1) + 1;
const auto numBytes = static_cast<size_t>(inst) - static_cast<size_t>(Instruction::PUSH1) + 1;
auto value = llvm::APInt(256, 0);
for (decltype(numBytes) i = 0; i < numBytes; ++i) // TODO: Use pc as iterator
for (auto lastPC = currentPC + numBytes; currentPC < lastPC;)
{
++currentPC;
value <<= 8;
value |= bytecode[currentPC];
value |= bytecode[++currentPC];
}
auto c = m_builder.getInt(value);
stack.push(c);
stack.push(m_builder.getInt(value));
break;
}