Merge pull request #3797 from ethereum/shift-constantinople

Use native shift instructions on Constantinople

1 files changed, 7 insertions, 1 deletions

diff --git a/libsolidity/codegen/ABIFunctions.h b/libsolidity/codegen/ABIFunctions.h
index 2b582e84..db4d40f5 100644
--- a/libsolidity/codegen/ABIFunctions.h
+++ b/libsolidity/codegen/ABIFunctions.h
@@ -22,6 +22,8 @@
 
 #pragma once
 
+#include <libsolidity/interface/EVMVersion.h>
+
 #include <libsolidity/ast/ASTForward.h>
 
 #include <vector>
@@ -48,6 +50,8 @@ using TypePointers = std::vector<TypePointer>;
 class ABIFunctions
 {
 public:
+	explicit ABIFunctions(EVMVersion _evmVersion = EVMVersion{}) : m_evmVersion(_evmVersion) {}
+
 	/// @returns name of an assembly function to ABI-encode values of @a _givenTypes
 	/// into memory, converting the types to @a _targetTypes on the fly.
 	/// Parameters are: <headStart> <value_n> ... <value_1>, i.e.
@@ -191,7 +195,7 @@ private:
 	std::string copyToMemoryFunction(bool _fromCalldata);
 
 	std::string shiftLeftFunction(size_t _numBits);
-	std::string shiftRightFunction(size_t _numBits, bool _signed);
+	std::string shiftRightFunction(size_t _numBits);
 	/// @returns the name of a function that rounds its input to the next multiple
 	/// of 32 or the input if it is a multiple of 32.
 	std::string roundUpFunction();
@@ -225,6 +229,8 @@ private:
 
 	/// Map from function name to code for a multi-use function.
 	std::map<std::string, std::string> m_requestedFunctions;
+
+	EVMVersion m_evmVersion;
 };
 
 }