From 45b938852ff9a2aa07cc9255278630b050f8e922 Mon Sep 17 00:00:00 2001
From: Connor1996 <zbk602423539@gmail.com>
Date: Tue, 3 Mar 2026 00:22:29 -0800
Subject: [PATCH] fix(ref): remove flash attention debug sentinel write

Signed-off-by: Connor1996 <zbk602423539@gmail.com>
---
 src/extensions_ref/src/flash_attention.metal | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/extensions_ref/src/flash_attention.metal b/src/extensions_ref/src/flash_attention.metal
index b78af0e..6bd5fb4 100644
--- a/src/extensions_ref/src/flash_attention.metal
+++ b/src/extensions_ref/src/flash_attention.metal
@@ -62,14 +62,6 @@ using namespace metal;
         }
     }
 
-    if (simd_lid == 0) {
-        for (int c = 0; c < E; c++) {
-            if (is_i_in_range && n < N) {
-                out[n * L * E + (i * Br + a) * E + c] = -233.0;
-            }
-        }
-    }
-
     for (int j = 0; j < Tc; j++) {
         int row_max = min((i + 1) * Br - 1, L - 1);
         int col_min = j * Bc;