diff options
| author |   patrick <patrick@openbsd.org> | 2018-04-06 14:26:03 +0000 |
|---|---|---|
| committer | patrick <patrick@openbsd.org> | 2018-04-06 14:26:03 +0000 |
| commit | bdabc2f19ffb9e20600dad6e8a300842a7bda50e (patch) | |
| tree | c50e7b2e5449b074651bb82a58517a8ebc4a8cf7 /gnu/llvm/lib/Support/Threading.cpp | |
| parent | Print a 'p' flag for file descriptors that were opened after pledge(2). (diff) | |
| download | wireguard-openbsd-bdabc2f19ffb9e20600dad6e8a300842a7bda50e.tar.xz wireguard-openbsd-bdabc2f19ffb9e20600dad6e8a300842a7bda50e.zip | |
Import LLVM 6.0.1 release including clang, lld and lldb.
"where is the kaboom?" deraadt@
Diffstat (limited to 'gnu/llvm/lib/Support/Threading.cpp')
| -rw-r--r-- | gnu/llvm/lib/Support/Threading.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gnu/llvm/lib/Support/Threading.cpp b/gnu/llvm/lib/Support/Threading.cpp index 6a10b988d46..473c84808af 100644 --- a/gnu/llvm/lib/Support/Threading.cpp +++ b/gnu/llvm/lib/Support/Threading.cpp @@ -47,6 +47,8 @@ void llvm::llvm_execute_on_thread(void (*Fn)(void *), void *UserData, unsigned llvm::heavyweight_hardware_concurrency() { return 1; } +unsigned llvm::hardware_concurrency() { return 1; } + uint64_t llvm::get_threadid() { return 0; } uint32_t llvm::get_max_thread_name_length() { return 0; } @@ -71,6 +73,18 @@ unsigned llvm::heavyweight_hardware_concurrency() { return NumPhysical; } +unsigned llvm::hardware_concurrency() { +#if defined(HAVE_SCHED_GETAFFINITY) && defined(HAVE_CPU_COUNT) + cpu_set_t Set; + if (sched_getaffinity(0, sizeof(Set), &Set)) + return CPU_COUNT(&Set); +#endif + // Guard against std::thread::hardware_concurrency() returning 0. + if (unsigned Val = std::thread::hardware_concurrency()) + return Val; + return 1; +} + // Include the platform-specific parts of this class. #ifdef LLVM_ON_UNIX #include "Unix/Threading.inc" |