[PATCH] Added _rdtsc intrinsics

[Robert Khasanov]

Hi rnk, echristo,

This patch moves _rdtsc() intrinsics from Intrin.h to ia32intrin.h as it used 
on windows and linux.




http://llvm-reviews.chandlerc.com/D3212

Files:
  lib/Headers/Intrin.h
  lib/Headers/ia32intrin.h

Index: lib/Headers/Intrin.h
===================================================================
--- lib/Headers/Intrin.h
+++ lib/Headers/Intrin.h
@@ -976,12 +976,6 @@
   __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no));
   return ((unsigned __int64)__edx << 32) | __eax;
 }
-static __inline__ unsigned __int64 __attribute__((__always_inline__, 
__nodebug__))
-__rdtsc(void) {
-  unsigned int __eax, __edx;
-  __asm__ ("rdtsc" : "=a" (__eax), "=d" (__edx));
-  return ((unsigned __int64)__edx << 32) | __eax;
-}
 static __inline__ void __attribute__((__always_inline__, __nodebug__))
 __halt(void) {
   __asm__ volatile ("hlt");
Index: lib/Headers/ia32intrin.h
===================================================================
--- lib/Headers/ia32intrin.h
+++ lib/Headers/ia32intrin.h
@@ -79,4 +79,14 @@
 }
 #endif /* !__x86_64__ */
 
+/* __rdtsc */
+static __inline__ unsigned long long __attribute__((__always_inline__, 
__nodebug__))
+__rdtsc(void) {
+  unsigned int __eax, __edx;
+  __asm__ ("rdtsc" : "=a" (__eax), "=d" (__edx));
+  return ((unsigned long long)__edx << 32) | __eax;
+}
+
+#define _rdtsc() __rdtsc()
+
 #endif /* __IA32INTRIN_H */

Index: lib/Headers/Intrin.h
===================================================================
--- lib/Headers/Intrin.h
+++ lib/Headers/Intrin.h
@@ -976,12 +976,6 @@
   __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no));
   return ((unsigned __int64)__edx << 32) | __eax;
 }
-static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__))
-__rdtsc(void) {
-  unsigned int __eax, __edx;
-  __asm__ ("rdtsc" : "=a" (__eax), "=d" (__edx));
-  return ((unsigned __int64)__edx << 32) | __eax;
-}
 static __inline__ void __attribute__((__always_inline__, __nodebug__))
 __halt(void) {
   __asm__ volatile ("hlt");
Index: lib/Headers/ia32intrin.h
===================================================================
--- lib/Headers/ia32intrin.h
+++ lib/Headers/ia32intrin.h
@@ -79,4 +79,14 @@
 }
 #endif /* !__x86_64__ */
 
+/* __rdtsc */
+static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
+__rdtsc(void) {
+  unsigned int __eax, __edx;
+  __asm__ ("rdtsc" : "=a" (__eax), "=d" (__edx));
+  return ((unsigned long long)__edx << 32) | __eax;
+}
+
+#define _rdtsc() __rdtsc()
+
 #endif /* __IA32INTRIN_H */

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