From 366ed7047aa97229142d7208925b4f9d0e52842c Mon Sep 17 00:00:00 2001
From: Randy Heit <rheit@zdoom.fake>
Date: Sat, 28 Mar 2009 03:26:05 +0000
Subject: [PATCH] - The variable the result of rdtsc is placed in also needs to
 be marked as volatile   to ensure that GCC doesn't optimize the function call
 away.

SVN r1510 (trunk)
---
 src/stats.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/stats.h b/src/stats.h
index bb1deebeb9..83f5151dc0 100644
--- a/src/stats.h
+++ b/src/stats.h
@@ -130,7 +130,7 @@ inline volatile unsigned long long rdtsc()
 	if (CPU.bRDTSC)
 #endif
 	{
-		register unsigned long long tsc asm("eax");
+		register unsigned volatile long long tsc asm("eax");
 		asm volatile ("\trdtsc\n" : : : "eax", "edx");
 		return tsc;
 	}