tbb/tbb-4.0-mfence.patch
Petr Machata 7a670e8dfd Rebase to 4.0
- CHANGES.txt is now tracked in the git repo
2011-10-19 17:48:45 +02:00

22 lines
931 B
Diff

diff -up tbb40_20110809oss/include/tbb/machine/linux_ia32.h\~ tbb40_20110809oss/include/tbb/machine/linux_ia32.h
--- tbb40_20110809oss/include/tbb/machine/linux_ia32.h~ 2011-08-24 15:51:56.000000000 +0200
+++ tbb40_20110809oss/include/tbb/machine/linux_ia32.h 2011-10-18 15:04:01.994271994 +0200
@@ -42,7 +42,14 @@
#define __TBB_control_consistency_helper() __TBB_compiler_fence()
#define __TBB_acquire_consistency_helper() __TBB_compiler_fence()
#define __TBB_release_consistency_helper() __TBB_compiler_fence()
-#define __TBB_full_memory_fence() __asm__ __volatile__("mfence": : :"memory")
+#define __TBB_full_memory_fence() __TBB_full_memory_fence_imp
+inline void __TBB_full_memory_fence_imp() {
+ int tmp;
+ __asm__ __volatile__("xchg %0,%0"
+ : "=r"(tmp)
+ : "r"(tmp)
+ : "memory");
+}
#if __TBB_ICC_ASM_VOLATILE_BROKEN
#define __TBB_VOLATILE
Diff finished. Tue Oct 18 15:04:09 2011