From e54ebd9fae7baf2be23097767ca06441b62c438f Mon Sep 17 00:00:00 2001
From: greg7mdp <greg7mdp@gmail.com>
Date: Tue, 3 Sep 2024 08:25:08 -0400
Subject: [PATCH] Update `payloadless` contract to avoid UB in shift operator.

---
 .../payloadless/payloadless.cpp               |   2 +-
 .../payloadless/payloadless.wasm              | Bin 2824 -> 2918 bytes
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/unittests/test-contracts/payloadless/payloadless.cpp b/unittests/test-contracts/payloadless/payloadless.cpp
index 46566c3215..e9556ca5ed 100644
--- a/unittests/test-contracts/payloadless/payloadless.cpp
+++ b/unittests/test-contracts/payloadless/payloadless.cpp
@@ -29,8 +29,8 @@ bool is_prime(int p) {
 bool is_mersenne_prime(int p) {
    if (p == 2) return true;
 
-   const long long unsigned m_p = (1LLU << p) - 1;
    long long unsigned s = 4;
+   const long long unsigned m_p = (1LLU << (p % (sizeof(s) * 8))) - 1;
    int i;
    for (i = 3; i <= p; i++) {
       s = (s * s - 2) % m_p;
diff --git a/unittests/test-contracts/payloadless/payloadless.wasm b/unittests/test-contracts/payloadless/payloadless.wasm
index dc91259462d70f80d797daf22f65c9d27759025d..53cc07f5603f905f772a3a84bbac90ce58f901b1 100644
GIT binary patch
delta 188
zcmeAWdnUG_hfz$3i7huZH@~QoiGek-pdhD`frsm?(B_$psT@4d7+IO?8EY6pc=9$*
zyU9*m!u4#-4onUTY>rHBybM5!vCx&5fe9qUD!{A6KGTH(3?4Wp1H~2CS1EGvFmgLK
z06~Q!2e$%;BeMrDgCnaV3p3CV1s2D;tO8eFMg<lH4j)A(AfG8qkwt-tmw}sGffZ`j
U2m1wztRSnhl-L|6w{kTD0BS8IUjP6A

delta 94
zcmaDR)*-f`hmn_)ku|ZPAg7XnhwF#n=0%LD9PASrnV9PtYbGDyw4EHtC9KcF?7-xp
qz~ac{#>)Vt7z<s2G^+rw6t@Da3j-K@uwS6a3X;oGVwwDis|5fy<P?bj