support building for arm64ec

ARM64EC is a custom ABI designed to allow ARM64 code to directly call into x64 code and vice-versa. In order to facilitate this, __x86_64__ (in llvm) and _M_X64 (in msvc) are both defined, but most x64 intrinsics aren't supported, so don't attempt to use them.
herumi · Jan 11, 2024 · 7219e23 · 7219e23
1 parent 2ce465b
commit 7219e23
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/xbyak/xbyak_util.h b/xbyak/xbyak_util.h
@@ -27,7 +27,7 @@
 #include "xbyak.h"
 #endif // XBYAK_ONLY_CLASS_CPU
 
-#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
+#if defined(__i386__) || (defined(__x86_64__) && !defined(__arm64ec__)) || defined(_M_IX86) || (defined(_M_X64) && !defined(_M_ARM64EC))
 	#define XBYAK_INTEL_CPU_SPECIFIC
 #endif