perf: avoid iterators for keeping rc limits (#1316)

Co-authored-by: Pedro Fontana <[email protected]>

Author: Oppen

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 #### Upcoming Changes
 
+* perf: remove pointless iterator from rc limits tracking [#1316](https://github.com/lambdaclass/cairo-vm/pull/1316)
+
 #### [0.8.2] - 2023-7-10
 
 * chore: update dependencies, particularly lamdaworks 0.1.2 -> 0.1.3 [#1323](https://github.com/lambdaclass/cairo-vm/pull/1323)
@@ -10,6 +12,7 @@
 
 * feat: add dependency installation script `install.sh` [#1298](https://github.com/lambdaclass/cairo-vm/pull/1298)
 
+
 * fix: specify resolver version 2 in the virtual workspace's manifest [#1311](https://github.com/lambdaclass/cairo-vm/pull/1311)
 
 * feat: add `lambdaworks-felt` feature to `cairo-vm-cli` [#1308](https://github.com/lambdaclass/cairo-vm/pull/1308)

vm/src/vm/vm_core.rs

@@ -405,15 +405,10 @@ impl VirtualMachine {
             instruction.off1 + (1_isize << (OFFSET_BITS - 1)),
             instruction.off2 + (1_isize << (OFFSET_BITS - 1)),
         );
+        let (min, max) = self.rc_limits.unwrap_or((off0, off0));
         self.rc_limits = Some((
-            [self.rc_limits.unwrap_or((off0, off0)).0, off0, off1, off2]
-                .into_iter()
-                .min()
-                .unwrap(),
-            [self.rc_limits.unwrap_or((off0, off0)).1, off0, off1, off2]
-                .into_iter()
-                .max()
-                .unwrap(),
+            min.min(off0).min(off1).min(off2),
+            max.max(off0).max(off1).max(off2),
         ));
 
         self.segments