Remove memcost

matter-labs · May 27, 2024 · a702849 · a702849
1 parent 63d1f43
commit a702849
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diff --git a/system-contracts/contracts/EvmInterpreterFunctions.template.yul b/system-contracts/contracts/EvmInterpreterFunctions.template.yul
@@ -464,12 +464,6 @@ function checkMemOverflow(location) {
     }
 }
 
-// Note, that this function can overflow. It's up to the caller to ensure that it does not.
-/*function memCost(memSizeWords) -> gasCost {
-    // The first term of the sum is the quadratic cost, the second one the linear one.
-    gasCost := add(div(mul(memSizeWords, memSizeWords), 512), mul(3, memSizeWords))
-}*/
-
 // This function can overflow, it is the job of the caller to ensure that it does not.
 // The argument to this function is the offset into the memory region IN BYTES.
 function expandMemory(newSize) -> gasCost {

diff --git a/system-contracts/contracts/EvmInterpreterPreprocessed.yul b/system-contracts/contracts/EvmInterpreterPreprocessed.yul
@@ -538,12 +538,6 @@ object "EVMInterpreter" {
             }
         }
 
-        // Note, that this function can overflow. It's up to the caller to ensure that it does not.
-        /*function memCost(memSizeWords) -> gasCost {
-            // The first term of the sum is the quadratic cost, the second one the linear one.
-            gasCost := add(div(mul(memSizeWords, memSizeWords), 512), mul(3, memSizeWords))
-        }*/
-
         // This function can overflow, it is the job of the caller to ensure that it does not.
         // The argument to this function is the offset into the memory region IN BYTES.
         function expandMemory(newSize) -> gasCost {
@@ -3167,12 +3161,6 @@ object "EVMInterpreter" {
                 }
             }
 
-            // Note, that this function can overflow. It's up to the caller to ensure that it does not.
-            /*function memCost(memSizeWords) -> gasCost {
-                // The first term of the sum is the quadratic cost, the second one the linear one.
-                gasCost := add(div(mul(memSizeWords, memSizeWords), 512), mul(3, memSizeWords))
-            }*/
-
             // This function can overflow, it is the job of the caller to ensure that it does not.
             // The argument to this function is the offset into the memory region IN BYTES.
             function expandMemory(newSize) -> gasCost {