From 33e62913f776d641aa54f106d442f55aacda789d Mon Sep 17 00:00:00 2001
From: Matt Borland <matt@mattborland.com>
Date: Wed, 7 Jan 2026 15:01:08 -0500
Subject: [PATCH 1/2] Remove workaround

---
 test/github_issue_1260.cpp | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/test/github_issue_1260.cpp b/test/github_issue_1260.cpp
index dc5af98f2..3a8e01663 100644
--- a/test/github_issue_1260.cpp
+++ b/test/github_issue_1260.cpp
@@ -23,13 +23,8 @@ void test()
 
 int main()
 {
-    // TODO(mborland): GCC 12+ in 32 bit compilations only with release mode fail
-    #ifndef __i386__
-
     test<boost::decimal::decimal128_t>();
     test<boost::decimal::decimal_fast128_t>();
 
-    #endif
-
     return boost::report_errors();
 }

From 2952aa3f89f8f008d511233f7c6651f5a7321018 Mon Sep 17 00:00:00 2001
From: Matt Borland <matt@mattborland.com>
Date: Wed, 7 Jan 2026 15:01:21 -0500
Subject: [PATCH 2/2] Fix strict aliasing violations

---
 .../detail/int128/detail/uint128_imp.hpp      | 24 ++++++++++++-------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/include/boost/decimal/detail/int128/detail/uint128_imp.hpp b/include/boost/decimal/detail/int128/detail/uint128_imp.hpp
index ec48af6b7..c1c2a6469 100644
--- a/include/boost/decimal/detail/int128/detail/uint128_imp.hpp
+++ b/include/boost/decimal/detail/int128/detail/uint128_imp.hpp
@@ -674,8 +674,10 @@ constexpr bool operator<(const uint128_t lhs, const uint128_t rhs) noexcept
     }
     else
     {
-        const uint32_t* l = reinterpret_cast<const uint32_t*>(&lhs);
-        const uint32_t* r = reinterpret_cast<const uint32_t*>(&rhs);
+        std::uint32_t l[4] {};
+        std::uint32_t r[4] {};
+        std::memcpy(l, &lhs, sizeof(lhs));
+        std::memcpy(r, &rhs, sizeof(rhs));
 
         if (l[3] != r[3])
         {
@@ -827,8 +829,10 @@ constexpr bool operator<=(const uint128_t lhs, const uint128_t rhs) noexcept
     }
     else
     {
-        const uint32_t* l = reinterpret_cast<const uint32_t*>(&lhs);
-        const uint32_t* r = reinterpret_cast<const uint32_t*>(&rhs);
+        std::uint32_t l[4] {};
+        std::uint32_t r[4] {};
+        std::memcpy(l, &lhs, sizeof(lhs));
+        std::memcpy(r, &rhs, sizeof(rhs));
 
         if (l[3] != r[3])
         {
@@ -980,8 +984,10 @@ constexpr bool operator>(const uint128_t lhs, const uint128_t rhs) noexcept
     }
     else
     {
-        const uint32_t* l = reinterpret_cast<const uint32_t*>(&lhs);
-        const uint32_t* r = reinterpret_cast<const uint32_t*>(&rhs);
+        std::uint32_t l[4] {};
+        std::uint32_t r[4] {};
+        std::memcpy(l, &lhs, sizeof(lhs));
+        std::memcpy(r, &rhs, sizeof(rhs));
 
         if (l[3] != r[3])
         {
@@ -1133,8 +1139,10 @@ constexpr bool operator>=(const uint128_t lhs, const uint128_t rhs) noexcept
     }
     else
     {
-        const uint32_t* l = reinterpret_cast<const uint32_t*>(&lhs);
-        const uint32_t* r = reinterpret_cast<const uint32_t*>(&rhs);
+        std::uint32_t l[4] {};
+        std::uint32_t r[4] {};
+        std::memcpy(l, &lhs, sizeof(lhs));
+        std::memcpy(r, &rhs, sizeof(rhs));
 
         if (l[3] != r[3])
         {