From 6a857f74eb920dd1824bc7e1651b04cfb7e322fe Mon Sep 17 00:00:00 2001
From: fbusato <fbusato@nvidia.com>
Date: Fri, 3 Jan 2025 23:19:49 +0000
Subject: [PATCH] disjoin 64/32-bit macros

---
 libcudacxx/include/cuda/std/__cccl/architecture.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libcudacxx/include/cuda/std/__cccl/architecture.h b/libcudacxx/include/cuda/std/__cccl/architecture.h
index f54b1727a52..ef568fcf9a8 100644
--- a/libcudacxx/include/cuda/std/__cccl/architecture.h
+++ b/libcudacxx/include/cuda/std/__cccl/architecture.h
@@ -50,11 +50,14 @@
 #  define _CCCL_ARCH_X86_() 0
 #endif
 
-// 64-bit / 32-bit
+// 64-bit
 #if _CCCL_ARCH_X86_64_() || _CCCL_ARCH_ARM64_() || defined(__CUDACC_RTC__)
 #  define _CCCL_ARCH_64BIT_() 1
 #  define _CCCL_ARCH_32BIT_() 0
-#else
+#endif
+
+// 32-bit
+#if _CCCL_ARCH_X86_32_()
 #  define _CCCL_ARCH_64BIT_() 0
 #  define _CCCL_ARCH_32BIT_() 1
 #endif