From 96ee81fa3f6d527fd4d158fb835515e7b8ceb019 Mon Sep 17 00:00:00 2001
From: Anthony Donlon <4056887+donlon@users.noreply.github.com>
Date: Fri, 1 Sep 2023 01:42:37 +0800
Subject: [PATCH] Fix unstable output of VHashSha256 (#4453)

---
 src/V3String.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/V3String.cpp b/src/V3String.cpp
index 9c1365c60..5ed5279e1 100644
--- a/src/V3String.cpp
+++ b/src/V3String.cpp
@@ -237,9 +237,8 @@ static void sha256Block(uint32_t* h, const uint32_t* chunk) VL_PURE {
     // Initialize working variables to current hash value
     for (unsigned i = 0; i < 8; i++) ah[i] = h[i];
     // Compression function main loop
+    uint32_t w[16] = {};
     for (unsigned i = 0; i < 4; ++i) {
-        uint32_t w[16];
-
         for (unsigned j = 0; j < 16; ++j) {
             if (i == 0) {
                 w[j] = *p++;