diff --git a/libcudacxx/include/cuda/std/__type_traits/is_extended_floating_point.h b/libcudacxx/include/cuda/std/__type_traits/is_extended_floating_point.h
index b9700a87066..040418f5fe7 100644
--- a/libcudacxx/include/cuda/std/__type_traits/is_extended_floating_point.h
+++ b/libcudacxx/include/cuda/std/__type_traits/is_extended_floating_point.h
@@ -22,16 +22,16 @@
 
 #include <cuda/std/__type_traits/integral_constant.h>
 
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
 #  include <cuda_fp16.h>
-#endif // _LIBCUDACXX_HAS_NVFP16
+#endif // _CCCL_HAS_NVFP16
 
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#if defined(_CCCL_HAS_NVBF16)
 _CCCL_DIAG_PUSH
 _CCCL_DIAG_SUPPRESS_CLANG("-Wunused-function")
 #  include <cuda_bf16.h>
 _CCCL_DIAG_POP
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 
 #if _CCCL_HAS_NVFP8()
 #  include <cuda_fp8.h>
@@ -53,7 +53,7 @@ _CCCL_INLINE_VAR constexpr bool __is_extended_floating_point_v
 #  endif // !_CCCL_NO_INLINE_VARIABLES
 #endif // !_CCCL_NO_VARIABLE_TEMPLATES
 
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
 template <>
 struct __is_extended_floating_point<__half> : true_type
 {};
@@ -62,9 +62,9 @@ struct __is_extended_floating_point<__half> : true_type
 template <>
 _CCCL_INLINE_VAR constexpr bool __is_extended_floating_point_v<__half> = true;
 #  endif // !_CCCL_NO_INLINE_VARIABLES
-#endif // _LIBCUDACXX_HAS_NVFP16
+#endif // _CCCL_HAS_NVFP16
 
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#if defined(_CCCL_HAS_NVBF16)
 template <>
 struct __is_extended_floating_point<__nv_bfloat16> : true_type
 {};
@@ -73,7 +73,7 @@ struct __is_extended_floating_point<__nv_bfloat16> : true_type
 template <>
 _CCCL_INLINE_VAR constexpr bool __is_extended_floating_point_v<__nv_bfloat16> = true;
 #  endif // !_CCCL_NO_INLINE_VARIABLES
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 
 #if _CCCL_HAS_NVFP8()
 template <>
diff --git a/libcudacxx/include/cuda/std/limits b/libcudacxx/include/cuda/std/limits
index 2bd0191af43..637b80aa305 100644
--- a/libcudacxx/include/cuda/std/limits
+++ b/libcudacxx/include/cuda/std/limits
@@ -609,7 +609,13 @@ public:
 #endif // !_LIBCUDACXX_HAS_NO_LONG_DOUBLE
 };
 
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
+#  ifdef _LIBCUDACXX_HAS_NVFP16
+#    define _LIBCUDACXX_FP16_CONSTEXPR constexpr
+#  else //_LIBCUDACXX_HAS_NVFP16
+#    define _LIBCUDACXX_FP16_CONSTEXPR
+#  endif //_LIBCUDACXX_HAS_NVFP16
+
 template <>
 class __numeric_limits_impl<__half, __numeric_limits_type::__floating_point>
 {
@@ -622,15 +628,15 @@ public:
   static constexpr int digits       = 11;
   static constexpr int digits10     = 3;
   static constexpr int max_digits10 = 5;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type min() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type min() noexcept
   {
     return type(__half_raw{0x0400u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type max() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type max() noexcept
   {
     return type(__half_raw{0x7bffu});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type lowest() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type lowest() noexcept
   {
     return type(__half_raw{0xfbffu});
   }
@@ -638,11 +644,11 @@ public:
   static constexpr bool is_integer = false;
   static constexpr bool is_exact   = false;
   static constexpr int radix       = __FLT_RADIX__;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type epsilon() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type epsilon() noexcept
   {
     return type(__half_raw{0x1400u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type round_error() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type round_error() noexcept
   {
     return type(__half_raw{0x3800u});
   }
@@ -657,19 +663,19 @@ public:
   static constexpr bool has_signaling_NaN        = true;
   static constexpr float_denorm_style has_denorm = denorm_present;
   static constexpr bool has_denorm_loss          = false;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type infinity() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type infinity() noexcept
   {
     return type(__half_raw{0x7c00u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type quiet_NaN() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type quiet_NaN() noexcept
   {
     return type(__half_raw{0x7e00u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type signaling_NaN() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type signaling_NaN() noexcept
   {
     return type(__half_raw{0x7d00u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type denorm_min() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_FP16_CONSTEXPR type denorm_min() noexcept
   {
     return type(__half_raw{0x0001u});
   }
@@ -682,9 +688,16 @@ public:
   static constexpr bool tinyness_before          = false;
   static constexpr float_round_style round_style = round_to_nearest;
 };
-#endif // _LIBCUDACXX_HAS_NVFP16
+#  undef _LIBCUDACXX_FP16_CONSTEXPR
+#endif // _CCCL_HAS_NVFP16
+
+#if defined(_CCCL_HAS_NVBF16)
+#  ifdef _LIBCUDACXX_HAS_NVBF16
+#    define _LIBCUDACXX_BF16_CONSTEXPR constexpr
+#  else //_LIBCUDACXX_HAS_NVBF16
+#    define _LIBCUDACXX_BF16_CONSTEXPR
+#  endif //_LIBCUDACXX_HAS_NVBF16
 
-#if defined(_LIBCUDACXX_HAS_NVBF16)
 template <>
 class __numeric_limits_impl<__nv_bfloat16, __numeric_limits_type::__floating_point>
 {
@@ -697,15 +710,15 @@ public:
   static constexpr int digits       = 8;
   static constexpr int digits10     = 2;
   static constexpr int max_digits10 = 4;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type min() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type min() noexcept
   {
     return type(__nv_bfloat16_raw{0x0080u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type max() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type max() noexcept
   {
     return type(__nv_bfloat16_raw{0x7f7fu});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type lowest() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type lowest() noexcept
   {
     return type(__nv_bfloat16_raw{0xff7fu});
   }
@@ -713,11 +726,11 @@ public:
   static constexpr bool is_integer = false;
   static constexpr bool is_exact   = false;
   static constexpr int radix       = __FLT_RADIX__;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type epsilon() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type epsilon() noexcept
   {
     return type(__nv_bfloat16_raw{0x3c00u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type round_error() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type round_error() noexcept
   {
     return type(__nv_bfloat16_raw{0x3f00u});
   }
@@ -732,19 +745,19 @@ public:
   static constexpr bool has_signaling_NaN        = true;
   static constexpr float_denorm_style has_denorm = denorm_present;
   static constexpr bool has_denorm_loss          = false;
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type infinity() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type infinity() noexcept
   {
     return type(__nv_bfloat16_raw{0x7f80u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type quiet_NaN() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type quiet_NaN() noexcept
   {
     return type(__nv_bfloat16_raw{0x7fc0u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type signaling_NaN() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type signaling_NaN() noexcept
   {
     return type(__nv_bfloat16_raw{0x7fa0u});
   }
-  _LIBCUDACXX_HIDE_FROM_ABI static constexpr type denorm_min() noexcept
+  _LIBCUDACXX_HIDE_FROM_ABI static _LIBCUDACXX_BF16_CONSTEXPR type denorm_min() noexcept
   {
     return type(__nv_bfloat16_raw{0x0001u});
   }
@@ -757,7 +770,8 @@ public:
   static constexpr bool tinyness_before          = false;
   static constexpr float_round_style round_style = round_to_nearest;
 };
-#endif // _LIBCUDACXX_HAS_NVBF16
+#  undef _LIBCUDACXX_BF16_CONSTEXPR
+#endif // _CCCL_HAS_NVBF16
 
 #if _CCCL_HAS_NVFP8()
 #  if defined(_CCCL_BUILTIN_BIT_CAST) || _CCCL_STD_VER >= 2014
diff --git a/libcudacxx/test/libcudacxx/libcxx/utilities/meta/meta.unary/meta.unary.cat/is_floating_point.pass.cpp b/libcudacxx/test/libcudacxx/libcxx/utilities/meta/meta.unary/meta.unary.cat/is_floating_point.pass.cpp
index b0b7a3f3b69..5a04070c598 100644
--- a/libcudacxx/test/libcudacxx/libcxx/utilities/meta/meta.unary/meta.unary.cat/is_floating_point.pass.cpp
+++ b/libcudacxx/test/libcudacxx/libcxx/utilities/meta/meta.unary/meta.unary.cat/is_floating_point.pass.cpp
@@ -80,12 +80,12 @@ int main(int, char**)
   test_is_floating_point<float>();
   test_is_floating_point<double>();
   test_is_floating_point<long double>();
-#ifdef _LIBCUDACXX_HAS_NVFP16
+#ifdef _CCCL_HAS_NVFP16
   test_is_floating_point<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#ifdef _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVFP16
+#ifdef _CCCL_HAS_NVBF16
   test_is_floating_point<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test_is_floating_point<__nv_fp8_e4m3>();
   test_is_floating_point<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/is_specialized.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/is_specialized.pass.cpp
index 7113c0e2772..adb30091033 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/is_specialized.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/is_specialized.pass.cpp
@@ -68,12 +68,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 
   static_assert(!cuda::std::numeric_limits<cuda::std::complex<double>>::is_specialized,
                 "!cuda::std::numeric_limits<cuda::std::complex<double> >::is_specialized");
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/common.h b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/common.h
index 8400071611c..7d15f2ba6b6 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/common.h
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/common.h
@@ -17,6 +17,7 @@
 #define __CUDA_NO_BFLOAT16_CONVERSIONS__ 1
 #define __CUDA_NO_BFLOAT16_OPERATORS__   1
 
+#include <cuda/std/__bit/bit_cast.h>
 #include <cuda/std/limits>
 
 template <class T>
@@ -42,27 +43,43 @@ __host__ __device__ inline __nv_fp8_e5m2 make_fp8_e5m2(double x, __nv_saturation
 
 __host__ __device__ inline bool float_eq(__nv_fp8_e4m3 x, __nv_fp8_e4m3 y)
 {
+#  if _CCCL_CUDACC_AT_LEAST(12, 2)
   return float_eq(__half{__nv_cvt_fp8_to_halfraw(x.__x, __NV_E4M3)}, __half{__nv_cvt_fp8_to_halfraw(y.__x, __NV_E4M3)});
+#  else
+  return ::cuda::std::bit_cast<unsigned char>(x) == ::cuda::std::bit_cast<unsigned char>(y);
+#  endif
 }
 
 __host__ __device__ inline bool float_eq(__nv_fp8_e5m2 x, __nv_fp8_e5m2 y)
 {
+#  if _CCCL_CUDACC_AT_LEAST(12, 2)
   return float_eq(__half{__nv_cvt_fp8_to_halfraw(x.__x, __NV_E5M2)}, __half{__nv_cvt_fp8_to_halfraw(y.__x, __NV_E5M2)});
+#  else
+  return ::cuda::std::bit_cast<unsigned char>(x) == ::cuda::std::bit_cast<unsigned char>(y);
+#  endif
 }
 #endif // _CCCL_HAS_NVFP8
 
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
 __host__ __device__ inline bool float_eq(__half x, __half y)
 {
+#  if _CCCL_CUDACC_AT_LEAST(12, 2)
   return __heq(x, y);
+#  else
+  return __half2float(x) == __half2float(y);
+#  endif
 }
-#endif // _LIBCUDACXX_HAS_NVFP16
+#endif // _CCCL_HAS_NVFP16
 
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#if defined(_CCCL_HAS_NVBF16)
 __host__ __device__ inline bool float_eq(__nv_bfloat16 x, __nv_bfloat16 y)
 {
+#  if _CCCL_CUDACC_AT_LEAST(12, 2)
   return __heq(x, y);
+#  else
+  return __bfloat162float(x) == __bfloat162float(y);
+#  endif
 }
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 
 #endif // NUMERIC_LIMITS_MEMBERS_COMMON_H
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/const_data_members.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/const_data_members.pass.cpp
index b095d63afcd..093b5d331be 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/const_data_members.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/const_data_members.pass.cpp
@@ -110,12 +110,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test_type<long double>();
 #endif // _LIBCUDACXX_HAS_NO_LONG_DOUBLE
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test_type<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test_type<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test_type<__nv_fp8_e4m3>();
   test_type<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/denorm_min.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/denorm_min.pass.cpp
index 475f41a3388..9ea232eaad6 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/denorm_min.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/denorm_min.pass.cpp
@@ -66,12 +66,12 @@ int main(int, char**)
   test<long double>(LDBL_TRUE_MIN);
 #  endif
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(5.9604644775390625e-08));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(9.18354961579912115600575419705e-41));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(0.001953125));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(0.0000152587890625));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits.pass.cpp
index 0d3c910b672..01f6b05543b 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits.pass.cpp
@@ -55,12 +55,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, LDBL_MANT_DIG>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, 11>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, 8>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, 3>();
   test<__nv_fp8_e5m2, 2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits10.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits10.pass.cpp
index bd66aeecfeb..24c53725738 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits10.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/digits10.pass.cpp
@@ -74,12 +74,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>();
   test<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/epsilon.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/epsilon.pass.cpp
index 15366bdf308..bb65847df33 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/epsilon.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/epsilon.pass.cpp
@@ -57,12 +57,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(LDBL_EPSILON);
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(0.0009765625));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(0.0078125));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(0.125));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(0.25));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm.pass.cpp
index 8fa506b93ce..8d9881580bf 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, cuda::std::denorm_present>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, cuda::std::denorm_present>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, cuda::std::denorm_present>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, cuda::std::denorm_present>();
   test<__nv_fp8_e5m2, cuda::std::denorm_present>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm_loss.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm_loss.pass.cpp
index 3b7722acd8b..5a046a9b339 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm_loss.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_denorm_loss.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_infinity.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_infinity.pass.cpp
index ebddcb4421e..768e53d1c88 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_infinity.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_infinity.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, true>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_quiet_NaN.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_quiet_NaN.pass.cpp
index 908f2d7fa4a..4c3e11a9b05 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_quiet_NaN.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_quiet_NaN.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, true>();
   test<__nv_fp8_e5m2, true>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_signaling_NaN.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_signaling_NaN.pass.cpp
index 62d81c8a524..1b80d1869e6 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_signaling_NaN.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/has_signaling_NaN.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, true>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/infinity.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/infinity.pass.cpp
index 627105a4a8c..8dd611556c5 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/infinity.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/infinity.pass.cpp
@@ -64,12 +64,12 @@ int main(int, char**)
 #  ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(1. / 0.);
 #  endif
-#  if defined(_LIBCUDACXX_HAS_NVFP16)
+#  if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(1.0 / 0.0));
-#  endif // _LIBCUDACXX_HAS_NVFP16
-#  if defined(_LIBCUDACXX_HAS_NVBF16)
+#  endif // _CCCL_HAS_NVFP16
+#  if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(1.0 / 0.0));
-#  endif // _LIBCUDACXX_HAS_NVBF16
+#  endif // _CCCL_HAS_NVBF16
 #  if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(__nv_fp8_e4m3{});
   test<__nv_fp8_e5m2>(make_fp8_e5m2(1.0 / 0.0));
@@ -81,12 +81,12 @@ int main(int, char**)
 #  ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(INFINITY);
 #  endif
-#  if defined(_LIBCUDACXX_HAS_NVFP16)
+#  if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(INFINITY));
-#  endif // _LIBCUDACXX_HAS_NVFP16
-#  if defined(_LIBCUDACXX_HAS_NVBF16)
+#  endif // _CCCL_HAS_NVFP16
+#  if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(INFINITY));
-#  endif // _LIBCUDACXX_HAS_NVBF16
+#  endif // _CCCL_HAS_NVBF16
 #  if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(__nv_fp8_e4m3{});
   test<__nv_fp8_e5m2>(make_fp8_e5m2(INFINITY));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_bounded.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_bounded.pass.cpp
index eeb9740e4e2..e28ab8313b6 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_bounded.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_bounded.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, true>();
   test<__nv_fp8_e5m2, true>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_exact.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_exact.pass.cpp
index c3c2e027c72..e6038f1589b 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_exact.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_exact.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_iec559.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_iec559.pass.cpp
index 7bab40e8826..1ff809bad09 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_iec559.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_iec559.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif // _LIBCUDACXX_HAS_NO_LONG_DOUBLE
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_integer.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_integer.pass.cpp
index 68e7437f1e0..eed9d38c050 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_integer.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_integer.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_modulo.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_modulo.pass.cpp
index 992be2b18b7..fc3ca9dbb4e 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_modulo.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_modulo.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_signed.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_signed.pass.cpp
index be7e4f235a7..54005f6c0b9 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_signed.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/is_signed.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, true>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, true>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, true>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, true>();
   test<__nv_fp8_e5m2, true>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/lowest.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/lowest.pass.cpp
index 6a8b2a9c181..72190bd2ad7 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/lowest.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/lowest.pass.cpp
@@ -66,12 +66,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(-LDBL_MAX);
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(-65504.0));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(-3.3895313892515355e+38));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(-448.0));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(-57344.0));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max.pass.cpp
index a1582e41b22..5039f773a2f 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max.pass.cpp
@@ -65,12 +65,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(LDBL_MAX);
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(65504.0));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(3.3895313892515355e+38));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(448.0));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(57344.0));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_digits10.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_digits10.pass.cpp
index d01a4aa099c..309279bc79c 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_digits10.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_digits10.pass.cpp
@@ -69,12 +69,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>();
   test<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent.pass.cpp
index 3027e9f06f5..606e9c52b7f 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent.pass.cpp
@@ -62,12 +62,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, LDBL_MAX_EXP>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, 16>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, 128>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, 8>();
   test<__nv_fp8_e5m2, 15>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent10.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent10.pass.cpp
index 5924aee173d..61145deec86 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent10.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/max_exponent10.pass.cpp
@@ -62,12 +62,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, LDBL_MAX_10_EXP>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, 4>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, 38>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, 2>();
   test<__nv_fp8_e5m2, 4>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min.pass.cpp
index 15f470909df..ccab08a38f5 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min.pass.cpp
@@ -66,12 +66,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(LDBL_MIN);
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(6.103515625e-05));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(1.17549435082228750796873653722e-38));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(0.015625));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(0.000061035));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent.pass.cpp
index b63d653a7c3..c942a6288be 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent.pass.cpp
@@ -62,12 +62,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, LDBL_MIN_EXP>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, -13>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, -125>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, -6>();
   test<__nv_fp8_e5m2, -15>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent10.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent10.pass.cpp
index a6ff20e7fde..e9b6f29d25f 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent10.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/min_exponent10.pass.cpp
@@ -62,12 +62,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, LDBL_MIN_10_EXP>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, -4>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, -37>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, -2>();
   test<__nv_fp8_e5m2, -5>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/quiet_NaN.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/quiet_NaN.pass.cpp
index 2d6d9582f5c..a8b076fbeee 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/quiet_NaN.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/quiet_NaN.pass.cpp
@@ -108,12 +108,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>();
   test<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/radix.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/radix.pass.cpp
index 7e5c87927aa..dd15c391180 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/radix.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/radix.pass.cpp
@@ -55,12 +55,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, FLT_RADIX>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, FLT_RADIX>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, FLT_RADIX>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, FLT_RADIX>();
   test<__nv_fp8_e5m2, FLT_RADIX>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_error.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_error.pass.cpp
index d4faf373a09..95ed80eb951 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_error.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_error.pass.cpp
@@ -57,12 +57,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>(0.5);
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>(__double2half(0.5));
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>(__double2bfloat16(0.5));
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>(make_fp8_e4m3(0.5));
   test<__nv_fp8_e5m2>(make_fp8_e5m2(0.5));
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_style.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_style.pass.cpp
index 8515581d650..1eb5c0b0f5a 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_style.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/round_style.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, cuda::std::round_to_nearest>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, cuda::std::round_to_nearest>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, cuda::std::round_to_nearest>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, cuda::std::round_to_nearest>();
   test<__nv_fp8_e5m2, cuda::std::round_to_nearest>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/signaling_NaN.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/signaling_NaN.pass.cpp
index 19ace1b3d2c..0ec70976b32 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/signaling_NaN.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/signaling_NaN.pass.cpp
@@ -108,12 +108,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3>();
   test<__nv_fp8_e5m2>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
index 38dec8c872b..1da28874b06 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
@@ -54,12 +54,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/traps.pass.cpp b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/traps.pass.cpp
index 55d7eb990db..4cb627a4b77 100644
--- a/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/traps.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/language.support/support.limits/limits/numeric.limits.members/traps.pass.cpp
@@ -60,12 +60,12 @@ int main(int, char**)
 #ifndef _LIBCUDACXX_HAS_NO_LONG_DOUBLE
   test<long double, false>();
 #endif
-#if defined(_LIBCUDACXX_HAS_NVFP16)
+#if defined(_CCCL_HAS_NVFP16)
   test<__half, false>();
-#endif // _LIBCUDACXX_HAS_NVFP16
-#if defined(_LIBCUDACXX_HAS_NVBF16)
+#endif // _CCCL_HAS_NVFP16
+#if defined(_CCCL_HAS_NVBF16)
   test<__nv_bfloat16, false>();
-#endif // _LIBCUDACXX_HAS_NVBF16
+#endif // _CCCL_HAS_NVBF16
 #if _CCCL_HAS_NVFP8()
   test<__nv_fp8_e4m3, false>();
   test<__nv_fp8_e5m2, false>();
diff --git a/libcudacxx/test/libcudacxx/std/utilities/template.bitset/bitset.members/all.pass.cpp b/libcudacxx/test/libcudacxx/std/utilities/template.bitset/bitset.members/all.pass.cpp
index 76bc4de94df..5cdbc309873 100644
--- a/libcudacxx/test/libcudacxx/std/utilities/template.bitset/bitset.members/all.pass.cpp
+++ b/libcudacxx/test/libcudacxx/std/utilities/template.bitset/bitset.members/all.pass.cpp
@@ -47,7 +47,8 @@ __host__ __device__ TEST_CONSTEXPR_CXX14 bool test()
 int main(int, char**)
 {
   test();
-#if TEST_STD_VER >= 2014
+// this test spuriously fails for nvcc 11.1
+#if TEST_STD_VER >= 2014 && !_CCCL_CUDA_COMPILER(NVCC, <, 12)
   static_assert(test(), "");
 #endif // TEST_STD_VER >= 2014