From 8a2c71f471842a9b2dcc0bc33592cd7adb8b8dfe Mon Sep 17 00:00:00 2001
From: Ed Addario <eaddario@hotmail.com>
Date: Sat, 27 Sep 2025 17:27:29 +0100
Subject: [PATCH] Check for direction reversal

---
 src/llama-quant.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/llama-quant.cpp b/src/llama-quant.cpp
index 90931f25e7..601b9ada42 100644
--- a/src/llama-quant.cpp
+++ b/src/llama-quant.cpp
@@ -1204,7 +1204,7 @@ static std::unordered_map<std::string, ggml_type> target_bpw_type(
                 };
 
                 while (hull.size() >= 2) {
-                    if (cross_product(hull[hull.size() - 2], hull[hull.size() - 1], c) <= epsilon) {
+                    if (cross_product(hull[hull.size() - 2], hull[hull.size() - 1], c) <= -1 * epsilon) { // very small negative tolerance
                         hull.pop_back();
                     } else {
                         break;