Remove a GCC-specific intrinsic

Bug 18720257 Change-Id: I7dc9257ca47d701cfa190856ad3c2db39495bbdb Reviewed-on: https://swiftshader-review.googlesource.com/1621Reviewed-by: Nicolas Capens <nicolascapens@google.com> Tested-by: Nicolas Capens <nicolascapens@google.com>

Remove a GCC-specific intrinsic
ada3e7a3 · Nicolas Capens · Nicolas Capens · c71c4506 · ada3e7a3
Commit ada3e7a3 authored Dec 11, 2014 by Nicolas Capens Committed by Nicolas Capens Dec 11, 2014
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Timer.cpp src/Common/Timer.cpp +3 -4

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--- a/src/Common/Timer.cpp
+++ b/src/Common/Timer.cpp
@@ -49,11 +49,10 @@ namespace sw
 	{
 		#if defined(_WIN32)
 			return __rdtsc();
-		#elif __GNUC_PREREQ(4,5)
-			return __builtin_ia32_rdtsc();
 		#else
-			assert(false);   // UNIMPLEMENTED
+			int64_t tsc;
-			return 0;
+			__asm volatile("rdtsc": "=A" (tsc));
+			return tsc;
 		#endif
 	}