[libc][NFC] Swap ifdef logic for UInt128

[gchatelet]

No description provided.

[llvmbot]

@llvm/pr-subscribers-libc

Author: Guillaume Chatelet (gchatelet)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/75160.diff

1 Files Affected:

• (modified) libc/src/__support/UInt128.h (+4-4)

diff --git a/libc/src/__support/UInt128.h b/libc/src/__support/UInt128.h
index 2f688f1f31cb56..0558e5095f9f51 100644
--- a/libc/src/__support/UInt128.h
+++ b/libc/src/__support/UInt128.h
@@ -11,12 +11,12 @@
 
 #include "UInt.h"
 
-#if !defined(__SIZEOF_INT128__)
-using UInt128 = LIBC_NAMESPACE::cpp::UInt<128>;
-using Int128 = LIBC_NAMESPACE::cpp::Int<128>;
-#else
+#if defined(__SIZEOF_INT128__)
 using UInt128 = __uint128_t;
 using Int128 = __int128_t;
+#else
+using UInt128 = LIBC_NAMESPACE::cpp::UInt<128>;
+using Int128 = LIBC_NAMESPACE::cpp::Int<128>;
 #endif
 
 #endif // LLVM_LIBC_SRC___SUPPORT_UINT128_H