From dc2fe9b2e7a54b095b3614c8202ca38a094b3791 Mon Sep 17 00:00:00 2001
From: Alex Sepkowski <5620315+alsepkow@users.noreply.github.com>
Date: Tue, 18 Nov 2025 13:26:01 -0800
Subject: [PATCH] Fix off by 1 bug in WaveActiveAllEqual

---
 tools/clang/unittests/HLSLExec/LongVectors.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/clang/unittests/HLSLExec/LongVectors.cpp b/tools/clang/unittests/HLSLExec/LongVectors.cpp
index 5ab16b75a8..59b9ccc3e6 100644
--- a/tools/clang/unittests/HLSLExec/LongVectors.cpp
+++ b/tools/clang/unittests/HLSLExec/LongVectors.cpp
@@ -1373,7 +1373,7 @@ template <typename T> struct ExpectedBuilder<OpType::WaveActiveAllEqual, T> {
 
     std::vector<HLSLBool_t> Expected;
     const size_t VectorSize = Inputs[0].size();
-    Expected.assign(VectorSize - 1, static_cast<HLSLBool_t>(true));
+    Expected.assign(VectorSize, static_cast<HLSLBool_t>(true));
     // We set the last element to a different value on a single lane.
     Expected[VectorSize - 1] = static_cast<HLSLBool_t>(false);