From 4f833da24e37de0c33f2b68df06a1d1d165f54f9 Mon Sep 17 00:00:00 2001
From: cokicm <mita.cokic@gmail.com>
Date: Mon, 3 Jun 2024 17:21:29 +0200
Subject: [PATCH] Optimized opMLoad to avoid unnecessary allocations.

---
 state/runtime/evm/instructions.go | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/state/runtime/evm/instructions.go b/state/runtime/evm/instructions.go
index c66ba052e4..0b156c7b6f 100644
--- a/state/runtime/evm/instructions.go
+++ b/state/runtime/evm/instructions.go
@@ -356,15 +356,14 @@ func opSar(c *state) {
 func opMLoad(c *state) {
 	v := c.top()
 
-	var ok bool
-	c.tmp, ok = c.get2(c.tmp[:0], *v, *wordSize256)
-
-	// ### Error handling?
-	if !ok {
+	if !c.allocateMemory(*v, *wordSize256) {
 		return
 	}
 
-	v.SetBytes(c.tmp)
+	offset := v.Uint64()
+	size := wordSize256.Uint64()
+
+	v.SetBytes(c.memory[offset : offset+size])
 }
 
 func opMStore(c *state) {