X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Farch_x86.h;fp=urcu%2Farch_x86.h;h=e3171a24fa608d044de77ad8633e67e4adbbc69f;hp=64cc026f9cd46343cb977dc7b076bf9a7d70a317;hb=a2c502feb1f1510eef3234168bc16a98404694bf;hpb=7dfc94383c405a4a873067c22c71e908fb19af25

diff --git a/urcu/arch_x86.h b/urcu/arch_x86.h
index 64cc026..e3171a2 100644
--- a/urcu/arch_x86.h
+++ b/urcu/arch_x86.h
@@ -47,20 +47,6 @@ extern "C" {
 
 #define cpu_relax()	asm volatile("rep; nop" : : : "memory");
 
-/*
- * Serialize core instruction execution. Also acts as a compiler barrier.
- * On PIC ebx cannot be clobbered
- */
-#ifdef __PIC__
-#define sync_core()							  \
-	asm volatile("push %%ebx; cpuid; pop %%ebx"			  \
-		     : : : "memory", "eax", "ecx", "edx");
-#endif
-#ifndef __PIC__
-#define sync_core()							  \
-	asm volatile("cpuid" : : : "memory", "eax", "ebx", "ecx", "edx");
-#endif
-
 #define rdtscll(val)							  \
 	do {						  		  \
 	     unsigned int __a, __d;					  \