From 5d3d3ca9e80effa8e7d14983e9ebecbf5c4a1d05 Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Wed, 11 Mar 2026 12:40:33 -0400
Subject: [PATCH] chore: add ubsan to CI matrix

---
 .github/workflows/ci.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb797af..3b4f918 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -85,6 +85,18 @@ jobs:
             cmake_gen: Ninja
             cmake_flags: "-DMERVE_USE_SIMDUTF=ON"
             name_suffix: " (simdutf)"
+          # Ubuntu with UBSAN (GCC)
+          - os: ubuntu-22.04
+            cxx: g++-12
+            cmake_gen: Ninja
+            cmake_flags: "-DMERVE_SANITIZE_UNDEFINED=ON"
+            name_suffix: " (UBSAN)"
+          # Ubuntu with UBSAN (Clang)
+          - os: ubuntu-22.04
+            cxx: clang++-15
+            cmake_gen: Ninja
+            cmake_flags: "-DMERVE_SANITIZE_UNDEFINED=ON"
+            name_suffix: " (UBSAN)"
           # Ubuntu with simdutf + ASAN
           - os: ubuntu-latest
             cxx: g++-13