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solidity/test/formal
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hrkrshnn a54addc2cb An equivalence check for the Byte opcode 
Checks that the byte opcode (implemented using shift) is equivalent to a
canonical definition of byte using extract.
2021-08-10 11:00:29 +02:00
..
byte_big.py Fix implementation of BYTE 2021-08-09 19:14:14 +02:00
byte_equivalence.py An equivalence check for the Byte opcode 2021-08-10 11:00:29 +02:00
checked_int_add.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_int_div.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_int_mul_16.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_int_sub.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_uint_add.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_uint_mul_16.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
checked_uint_sub.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00
combine_byte_shl.py Optimize combination of byte and shl. 2020-07-08 20:26:46 +02:00
combine_byte_shr_1.py Optimize combination of byte and shl. 2020-07-08 20:26:46 +02:00
combine_byte_shr_2.py Optimize byte-after-shr for shift amounts that are not multiples of 8. 2020-08-04 12:16:23 +02:00
combine_div_shl_one_32.py Fix comparison opcodes and minor errors in proof scripts. 2019-06-14 17:04:50 +02:00
combine_mul_shl_one_64.py Fix comparison opcodes and minor errors in proof scripts. 2019-06-14 17:04:50 +02:00
combine_shl_shr_by_constant_64.py Move optimization proofs repo to Solidity repo 2019-06-13 17:11:48 +02:00
combine_shr_shl_by_constant_64.py Fix comparison opcodes and minor errors in proof scripts. 2019-06-14 17:04:50 +02:00
eq_sub.py Optimize iszero(sub(x, y)) to eq(x, y). 2020-12-22 15:11:48 +01:00
exp_neg_one.py Optimize exp when base is -1 2020-09-29 17:44:09 +02:00
exp_to_shl.py Verify simplification rule exp(2, X) to shl(X, 1) 2020-09-16 17:36:39 +02:00
move_and_across_shl_128.py Move optimization proofs repo to Solidity repo 2019-06-13 17:11:48 +02:00
move_and_across_shr_128.py Move optimization proofs repo to Solidity repo 2019-06-13 17:11:48 +02:00
move_and_inside_or.py Move AND with constant inside OR. 2021-03-09 15:26:19 +01:00
opcodes.py Fix implementation of BYTE 2021-08-09 19:14:14 +02:00
README.md Move optimization proofs repo to Solidity repo 2019-06-13 17:11:48 +02:00
repeated_and.py Add optimizer rules for repeated and 2020-04-22 10:20:59 +02:00
repeated_or.py Add optimizer rules for repeated and 2020-04-22 10:20:59 +02:00
replace_mul_by_shift.py Proof. 2021-03-18 08:42:49 +01:00
rule.py Add CI job for optimization proofs 2019-06-19 22:29:23 +02:00
shl_workaround_8.py Move optimization proofs repo to Solidity repo 2019-06-13 17:11:48 +02:00
sub_not_zero_x_to_not_x_256.py Correctness proof for SUB(NOT(0),X)->NOT(X). 2019-06-14 14:08:21 +02:00
util.py Proofs for the overflow and underflow conditions in checked arithmetic for Sol->Yul code generation. 2019-06-20 15:58:10 +02:00

README.md

The Solidity compiler implements several optimization rules.

This directory contains an effort to formally prove the correctness of those rules in: