Fix divide by zero crash in Port Latency Inference of divide and modulo ops

Author: VonTum

clear_fixed_panics.sh

@@ -7,7 +7,8 @@ if [ "$#" -ne 1 ]; then
 fi
 
 CRASHDUMPS_DIR="$1"
-SUS_COMPILER="/home/lennart/Desktop/sus-compiler/target/release/sus_compiler"
+cargo build
+SUS_COMPILER="/home/lennart/Desktop/sus-compiler/target/debug/sus_compiler"
 
 if [ ! -d "$CRASHDUMPS_DIR" ]; then
     echo "Directory $CRASHDUMPS_DIR does not exist."

src/latency/port_latency_inference.rs

@@ -171,14 +171,20 @@ fn recurse_down_expression(
                         Some(left_v)
                     }
                 }
-                BinaryOperator::Divide => (left_v.is_const() && right_v.is_const()).then(|| {
-                    left_v.const_factor /= right_v.const_factor;
-                    left_v
-                }),
-                BinaryOperator::Modulo => (left_v.is_const() && right_v.is_const()).then(|| {
-                    left_v.const_factor %= right_v.const_factor;
-                    left_v
-                }),
+                BinaryOperator::Divide => (left_v.is_const()
+                    && right_v.is_const()
+                    && right_v.const_factor != 0)
+                    .then(|| {
+                        left_v.const_factor /= right_v.const_factor;
+                        left_v
+                    }),
+                BinaryOperator::Modulo => (left_v.is_const()
+                    && right_v.is_const()
+                    && right_v.const_factor != 0)
+                    .then(|| {
+                        left_v.const_factor %= right_v.const_factor;
+                        left_v
+                    }),
                 _other => None,
             }
         }