[clang] [Headers] [ARM64EC] Fix extra tokens inside intrin0.h preprocessor directive (PR #112066)

[Max Winkler via cfe-commits]

https://github.com/MaxEW707 created https://github.com/llvm/llvm-project/pull/112066

Fixes https://github.com/llvm/llvm-project/pull/87717.

>From 52e2175eb672fa9a97f9c1480a3cfb727b7c3dce Mon Sep 17 00:00:00 2001
From: MaxEW707 <max.enrico.winkler at gmail.com>
Date: Fri, 11 Oct 2024 19:01:59 -0700
Subject: [PATCH] Fix extra tokens inside intrin0.h preprocessor directive

---
 clang/lib/Headers/intrin0.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Headers/intrin0.h b/clang/lib/Headers/intrin0.h
index 866c8896617d22..6b01f3808652aa 100644
--- a/clang/lib/Headers/intrin0.h
+++ b/clang/lib/Headers/intrin0.h
@@ -44,7 +44,7 @@ unsigned char _InterlockedCompareExchange128_rel(__int64 volatile *_Destination,
                                                  __int64 *_ComparandResult);
 #endif
 
-#ifdef __x86_64__ && !defined(__arm64ec__)
+#if defined(__x86_64__) && !defined(__arm64ec__)
 unsigned __int64 _umul128(unsigned __int64, unsigned __int64,
                           unsigned __int64 *);
 unsigned __int64 __shiftleft128(unsigned __int64 _LowPart,