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__TBB_full_memory_fence has to be a macro

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This commit is contained in:
Petr Machata 2011-07-26 17:22:46 +02:00
parent 0f662bdfb8
commit 8894973c7c
1 changed files with 3 additions and 2 deletions
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tbb-3.0-mfence.patch
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@ -1,12 +1,13 @@
diff -up tbb30_20110419oss/include/tbb/machine/linux_ia32.h\~ tbb30_20110419oss/include/tbb/machine/linux_ia32.h
--- tbb30_20110419oss/include/tbb/machine/linux_ia32.h~ 2011-04-19 13:48:59.000000000 +0200
+++ tbb30_20110419oss/include/tbb/machine/linux_ia32.h 2011-07-26 16:09:19.986615628 +0200
@@ -40,7 +40,13 @@
@@ -40,7 +40,14 @@
#define __TBB_control_consistency_helper()
#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")
+inline void __TBB_full_memory_fence() {
+#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)