[clang] [clang][x86] Support -masm=intel in cpuid.h (PR #127331)

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git-clang-format --diff 21e956df9b2b283c2f2ed710c542ebeebf8473ff 90e3f502e582f44cd19e1b8b71d218330b13c9e4 --extensions h -- clang/lib/Headers/cpuid.h
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Headers/cpuid.h b/clang/lib/Headers/cpuid.h
index d8ace39d4e..52addb7bfa 100644
--- a/clang/lib/Headers/cpuid.h
+++ b/clang/lib/Headers/cpuid.h
@@ -267,18 +267,18 @@
                   : "0"(__leaf), "2"(__count))
 #else
 /* x86-64 uses %rbx as the base register, so preserve it. */
-#define __cpuid(__leaf, __eax, __ebx, __ecx, __edx) \
-    __asm("  xchg{q|}  {%%|}rbx,%q1\n" \
-          "  cpuid\n" \
-          "  xchg{q|}  {%%|}rbx,%q1" \
-        : "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \
+#define __cpuid(__leaf, __eax, __ebx, __ecx, __edx)                            \
+  __asm("  xchg{q|}  {%%|}rbx,%q1\n"                                           \
+        "  cpuid\n"                                                            \
+        "  xchg{q|}  {%%|}rbx,%q1"                                             \
+        : "=a"(__eax), "=r"(__ebx), "=c"(__ecx), "=d"(__edx)                   \
         : "0"(__leaf))
 
-#define __cpuid_count(__leaf, __count, __eax, __ebx, __ecx, __edx) \
-    __asm("  xchg{q|}  {%%|}rbx,%q1\n" \
-          "  cpuid\n" \
-          "  xchg{q|}  {%%|}rbx,%q1" \
-        : "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \
+#define __cpuid_count(__leaf, __count, __eax, __ebx, __ecx, __edx)             \
+  __asm("  xchg{q|}  {%%|}rbx,%q1\n"                                           \
+        "  cpuid\n"                                                            \
+        "  xchg{q|}  {%%|}rbx,%q1"                                             \
+        : "=a"(__eax), "=r"(__ebx), "=c"(__ecx), "=d"(__edx)                   \
         : "0"(__leaf), "2"(__count))
 #endif
 
@@ -302,7 +302,9 @@ static __inline unsigned int __get_cpuid_max (unsigned int __leaf,
           "  je     1f\n"
           "  mov{l|}   {$1,%0|%0,1}\n"
           "1:"
-        : "=r" (__cpuid_supported) : : "eax", "ecx");
+          : "=r"(__cpuid_supported)
+          :
+          : "eax", "ecx");
     if (!__cpuid_supported)
         return 0;
 #endif

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https://github.com/llvm/llvm-project/pull/127331