Revert "tsan: add fiber support"

This reverts commit r353817 because we think it broke AARch64 and
PowerPC buildbots.

llvm-svn: 353939

1 files changed, 0 insertions, 18 deletions

diff --git a/compiler-rt/include/sanitizer/tsan_interface.h b/compiler-rt/include/sanitizer/tsan_interface.h
index 011b23350ca..4a98a4e12d3 100644
--- a/compiler-rt/include/sanitizer/tsan_interface.h
+++ b/compiler-rt/include/sanitizer/tsan_interface.h
@@ -136,24 +136,6 @@ void __tsan_external_assign_tag(void *addr, void *tag);
 void __tsan_external_read(void *addr, void *caller_pc, void *tag);
 void __tsan_external_write(void *addr, void *caller_pc, void *tag);
 
-// Fiber switching API.
-//   - TSAN context for fiber can be created by __tsan_create_fiber
-//     and freed by __tsan_destroy_fiber.
-//   - TSAN context of current fiber or thread can be obtained
-//     by calling __tsan_get_current_fiber.
-//   - __tsan_switch_to_fiber should be called immediatly before switch
-//     to fiber, such as call of swapcontext.
-//   - Fiber name can be set by __tsan_set_fiber_name.
-void *__tsan_get_current_fiber(void);
-void *__tsan_create_fiber(unsigned flags);
-void __tsan_destroy_fiber(void *fiber);
-void __tsan_switch_to_fiber(void *fiber, unsigned flags);
-void __tsan_set_fiber_name(void *fiber, const char *name);
-
-// Flags for __tsan_switch_to_fiber:
-// Do not establish a happens-before relation between fibers
-const unsigned __tsan_switch_to_fiber_no_sync = 1 << 0;
-
 #ifdef __cplusplus
 }  // extern "C"
 #endif