diff --git a/src/asmjit/core/support.h b/src/asmjit/core/support.h
index f98ffaa..2329cb2 100644
--- a/src/asmjit/core/support.h
+++ b/src/asmjit/core/support.h
@@ -33,33 +33,40 @@
 ASMJIT_BEGIN_NAMESPACE
 
 //! \addtogroup asmjit_utilities
 //! \{
 
 //! Contains support classes and functions that may be used by AsmJit source
 //! and header files. Anything defined here is considered internal and should
 //! not be used outside of AsmJit and related projects like AsmTK.
 namespace Support {
 
 // ============================================================================
 // [asmjit::Support - Architecture Features & Constraints]
 // ============================================================================
 
 //! \cond INTERNAL
+#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ >= 11
+// There is a bug in GCC11+ that makes it unusable to use annotated unaligned loads/stores.
+static constexpr bool kUnalignedAccess16 = false;
+static constexpr bool kUnalignedAccess32 = false;
+static constexpr bool kUnalignedAccess64 = false;
+#else
 static constexpr bool kUnalignedAccess16 = ASMJIT_ARCH_X86 != 0;
 static constexpr bool kUnalignedAccess32 = ASMJIT_ARCH_X86 != 0;
 static constexpr bool kUnalignedAccess64 = ASMJIT_ARCH_X86 != 0;
+#endif
 //! \endcond
 
 // ============================================================================
 // [asmjit::Support - Internal]
 // ============================================================================
 
 //! \cond INTERNAL
 namespace Internal {
   template<typename T, size_t Alignment>
   struct AlignedInt {};
 
   template<> struct AlignedInt<uint16_t, 1> { typedef uint16_t ASMJIT_ALIGN_TYPE(T, 1); };
   template<> struct AlignedInt<uint16_t, 2> { typedef uint16_t T; };
   template<> struct AlignedInt<uint32_t, 1> { typedef uint32_t ASMJIT_ALIGN_TYPE(T, 1); };
   template<> struct AlignedInt<uint32_t, 2> { typedef uint32_t ASMJIT_ALIGN_TYPE(T, 2); };