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Optimize across MLOAD if MSIZE is not used.

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This commit is contained in:
chriseth
2018-04-03 14:34:32 +02:00
parent d21382157c
commit 6777f7a57f
10 changed files with 87 additions and 35 deletions
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test/libsolidity/SolidityEndToEndTest.cpp
+22 -1
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@@ -9119,7 +9119,7 @@ BOOST_AUTO_TEST_CASE(calling_uninitialized_function_in_detail)
int mutex;
function t() returns (uint) {
if (mutex > 0)
return 7;
{ assembly { mstore(0, 7) return(0, 0x20) } }
mutex = 1;
// Avoid re-executing this function if we jump somewhere.
x();
@@ -9132,6 +9132,27 @@ BOOST_AUTO_TEST_CASE(calling_uninitialized_function_in_detail)
ABI_CHECK(callContractFunction("t()"), encodeArgs());
}
BOOST_AUTO_TEST_CASE(calling_uninitialized_function_through_array)
{
char const* sourceCode = R"(
contract C {
int mutex;
function t() returns (uint) {
if (mutex > 0)
{ assembly { mstore(0, 7) return(0, 0x20) } }
mutex = 1;
// Avoid re-executing this function if we jump somewhere.
function() internal returns (uint)[200] x;
x[0]();
return 2;
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("t()"), encodeArgs());
}
BOOST_AUTO_TEST_CASE(pass_function_types_internally)
{
char const* sourceCode = R"(