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author | Zachary Turner <zturner@google.com> | 2014-06-19 18:18:23 +0000 |
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committer | Zachary Turner <zturner@google.com> | 2014-06-19 18:18:23 +0000 |
commit | a4d0ff9cd1fb3fe4c3a58d0747dc523f7d9e9e3f (patch) | |
tree | 7a5b3038c8c592ee3a6c580e872a31b9378fbd6a /lib/Support | |
parent | 6072096fd63c1996cfe731ecddcb6b3232e37b70 (diff) | |
download | llvm-a4d0ff9cd1fb3fe4c3a58d0747dc523f7d9e9e3f.tar.gz llvm-a4d0ff9cd1fb3fe4c3a58d0747dc523f7d9e9e3f.tar.bz2 llvm-a4d0ff9cd1fb3fe4c3a58d0747dc523f7d9e9e3f.tar.xz |
Remove support for LLVM runtime multi-threading.
After a number of previous small iterations, the functions
llvm_start_multithreaded() and llvm_stop_multithreaded() have
been reduced essentially to no-ops. This change removes them
entirely.
Reviewed by: rnk, dblaikie
Differential Revision: http://reviews.llvm.org/D4216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211287 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
-rw-r--r-- | lib/Support/Threading.cpp | 29 |
1 files changed, 3 insertions, 26 deletions
diff --git a/lib/Support/Threading.cpp b/lib/Support/Threading.cpp index 2358dde0e6..ca7f3f64aa 100644 --- a/lib/Support/Threading.cpp +++ b/lib/Support/Threading.cpp @@ -7,7 +7,8 @@ // //===----------------------------------------------------------------------===// // -// This file implements llvm_start_multithreaded() and friends. +// This file defines helper functions for running LLVM in a multi-threaded +// environment. // //===----------------------------------------------------------------------===// @@ -19,38 +20,14 @@ using namespace llvm; -static bool multithreaded_mode = false; - -bool llvm::llvm_start_multithreaded() { +bool llvm::llvm_is_multithreaded() { #if LLVM_ENABLE_THREADS != 0 - assert(!multithreaded_mode && "Already multithreaded!"); - multithreaded_mode = true; - - // We fence here to ensure that all initialization is complete BEFORE we - // return from llvm_start_multithreaded(). - sys::MemoryFence(); return true; #else return false; #endif } -void llvm::llvm_stop_multithreaded() { -#if LLVM_ENABLE_THREADS != 0 - assert(multithreaded_mode && "Not currently multithreaded!"); - - // We fence here to insure that all threaded operations are complete BEFORE we - // return from llvm_stop_multithreaded(). - sys::MemoryFence(); - - multithreaded_mode = false; -#endif -} - -bool llvm::llvm_is_multithreaded() { - return multithreaded_mode; -} - #if LLVM_ENABLE_THREADS != 0 && defined(HAVE_PTHREAD_H) #include <pthread.h> |