Add Intel intrinsics headers

third_party/intel/rtmintrin.internal.h

@@ -0,0 +1,50 @@
+#ifndef _IMMINTRIN_H_INCLUDED
+#error "Never use <rtmintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef _RTMINTRIN_H_INCLUDED
+#define _RTMINTRIN_H_INCLUDED
+
+#ifndef __RTM__
+#pragma GCC push_options
+#pragma GCC target("rtm")
+#define __DISABLE_RTM__
+#endif /* __RTM__ */
+
+#define _XBEGIN_STARTED  (~0u)
+#define _XABORT_EXPLICIT (1 << 0)
+#define _XABORT_RETRY    (1 << 1)
+#define _XABORT_CONFLICT (1 << 2)
+#define _XABORT_CAPACITY (1 << 3)
+#define _XABORT_DEBUG    (1 << 4)
+#define _XABORT_NESTED   (1 << 5)
+#define _XABORT_CODE(x)  (((x) >> 24) & 0xFF)
+
+extern __inline unsigned int
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _xbegin(void) {
+  return __builtin_ia32_xbegin();
+}
+
+extern __inline void
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _xend(void) {
+  __builtin_ia32_xend();
+}
+
+#ifdef __OPTIMIZE__
+extern __inline void
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _xabort(const unsigned int __imm) {
+  __builtin_ia32_xabort(__imm);
+}
+#else
+#define _xabort(N) __builtin_ia32_xabort(N)
+#endif /* __OPTIMIZE__ */
+
+#ifdef __DISABLE_RTM__
+#undef __DISABLE_RTM__
+#pragma GCC pop_options
+#endif /* __DISABLE_RTM__ */
+
+#endif /* _RTMINTRIN_H_INCLUDED */