From 83252d9a8b594a5ff1c19fb829ddcf2e1a308985 Mon Sep 17 00:00:00 2001
From: rihi <19492038+rihi@users.noreply.github.com>
Date: Fri, 13 Oct 2023 17:36:23 +0200
Subject: [PATCH] Catch empty operands operation in collapse_constants.py

---
 .../expression_simplification/rules/collapse_constants.py       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/decompiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py b/decompiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py
index a940a6863..b32a84215 100644
--- a/decompiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py
+++ b/decompiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py
@@ -14,6 +14,8 @@ class CollapseConstants(SimplificationRule):
     """
 
     def apply(self, operation: Operation) -> list[tuple[Expression, Expression]]:
+        if not operation.operands:
+            return []  # Is this even allowed?
         if not all(isinstance(o, Constant) for o in operation.operands):
             return []