Make cpuid.h actually work with -std=c99 <rdar://problem/12552716>.

While we're here, extend the module map to cover most of the
newly-added instrinsic headers. Only wmmintrin.h is missing, because
it needs to be split into AES/PCLMUL subheaders (as a separate commit).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167398 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Headers/cpuid.h b/lib/Headers/cpuid.h
index 05c293f..33df7c2 100644
--- a/lib/Headers/cpuid.h
+++ b/lib/Headers/cpuid.h
@@ -28,6 +28,6 @@
 static inline int __get_cpuid (unsigned int level, unsigned int *eax,
                                unsigned int *ebx, unsigned int *ecx,
                                unsigned int *edx) {
-    asm("cpuid" : "=a"(*eax), "=b" (*ebx), "=c"(*ecx), "=d"(*edx) : "0"(level));
+    __asm("cpuid" : "=a"(*eax), "=b" (*ebx), "=c"(*ecx), "=d"(*edx) : "0"(level));
     return 1;
 }