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| author | Alex Beregszaszi <alex@rtfs.hu> | 2017-06-30 08:14:58 +0800 |
|---|---|---|
| committer | Alex Beregszaszi <alex@rtfs.hu> | 2017-07-01 04:27:39 +0800 |
| commit | 32d6c1c3168dc19ef818e5ff605af3a40f5601e8 (patch) | |
| tree | 5a881d08846cc9e1f61c208effd10cc0a2fe35c4 | |
| parent | b3be9d6fdc195519eccce22f07af5ee42af399ed (diff) | |
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MLOAD has side-effects, treat it like that in the optimiser
| -rw-r--r-- | Changelog.md | 1 | ||||
| -rw-r--r-- | libevmasm/Instruction.cpp | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/Changelog.md b/Changelog.md index 68f2272d..3aac912b 100644 --- a/Changelog.md +++ b/Changelog.md @@ -20,6 +20,7 @@ Features: * Static Analyzer: Warn about deprecation of ``callcode``. Bugfixes: + * Assembly: mark ``MLOAD`` to have side effects in the optimiser. * Code generator: Use ``REVERT`` instead of ``INVALID`` for generated input validation routines. * Type Checker: Fix address literals not being treated as compile-time constants. * Type Checker: Disallow invoking the same modifier multiple times. diff --git a/libevmasm/Instruction.cpp b/libevmasm/Instruction.cpp index 8feb733a..b38981d2 100644 --- a/libevmasm/Instruction.cpp +++ b/libevmasm/Instruction.cpp @@ -216,7 +216,7 @@ static const std::map<Instruction, InstructionInfo> c_instructionInfo = { Instruction::DIFFICULTY, { "DIFFICULTY", 0, 0, 1, false, Tier::Base } }, { Instruction::GASLIMIT, { "GASLIMIT", 0, 0, 1, false, Tier::Base } }, { Instruction::POP, { "POP", 0, 1, 0, false, Tier::Base } }, - { Instruction::MLOAD, { "MLOAD", 0, 1, 1, false, Tier::VeryLow } }, + { Instruction::MLOAD, { "MLOAD", 0, 1, 1, true, Tier::VeryLow } }, { Instruction::MSTORE, { "MSTORE", 0, 2, 0, true, Tier::VeryLow } }, { Instruction::MSTORE8, { "MSTORE8", 0, 2, 0, true, Tier::VeryLow } }, { Instruction::SLOAD, { "SLOAD", 0, 1, 1, false, Tier::Special } }, |