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Add some missing wasm functions.

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This commit is contained in:
chriseth 2020-02-04 18:54:35 +01:00
parent a7624ffc45
commit 48933df18d
3 changed files with 7 additions and 2 deletions
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6
libyul/backends/wasm/BinaryTransform.cpp
View File

@ -311,7 +311,11 @@ bytes BinaryTransform::operator()(BuiltinCall const& _call)
bytes args = visit(_call.arguments);
if (_call.functionName == "unreachable")
return toBytes(Opcode::Unreachable);
return toBytes(Opcode::Unreachable);
else if (_call.functionName == "nop")
return toBytes(Opcode::Nop);
else if (_call.functionName == "drop")
return toBytes(Opcode::Drop);
else
{
yulAssert(builtins.count(_call.functionName), "Builtin " + _call.functionName + " not found");

1
libyul/backends/wasm/WasmDialect.cpp
View File

@ -94,6 +94,7 @@ WasmDialect::WasmDialect()
// We could introduce "i32.drop".
addFunction("drop", {i64}, {});
addFunction("nop", {}, {});
addFunction("unreachable", {}, {}, false);
m_functions["unreachable"_yulstring].sideEffects.invalidatesStorage = false;
m_functions["unreachable"_yulstring].sideEffects.invalidatesMemory = false;

2
test/tools/yulInterpreter/EwasmBuiltinInterpreter.cpp
View File

@ -93,7 +93,7 @@ u256 EwasmBuiltinInterpreter::evalBuiltin(YulString _fun, vector<u256> const& _a
);
return 0;
}
else if (_fun == "drop"_yulstring)
else if (_fun == "drop"_yulstring || _fun == "nop"_yulstring)
return {};
else if (_fun == "i32.wrap_i64"_yulstring)
return arg.at(0) & uint32_t(-1);