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Diffstat (limited to 'llvm/docs/LangRef.rst')
| -rw-r--r-- | llvm/docs/LangRef.rst | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index 8b0bedcd534..e8bbcc535f6 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -9634,6 +9634,33 @@ pass will generate the appropriate data structures and replace the ``llvm.instrprof_value_profile`` intrinsic with the call to the profile runtime library with proper arguments. +'``llvm.thread.pointer``' Intrinsic +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Syntax: +""""""" + +:: + + declare i8* @llvm.thread.pointer() + +Overview: +""""""""" + +The '``llvm.thread.pointer``' intrinsic returns the value of the thread +pointer. + +Semantics: +"""""""""" + +The '``llvm.thread.pointer``' intrinsic returns a pointer to the TLS area +for the current thread. The exact semantics of this value are target +specific: it may point to the start of TLS area, to the end, or somewhere +in the middle. Depending on the target, this intrinsic may read a register, +call a helper function, read from an alternate memory space, or perform +other operations necessary to locate the TLS area. Not all targets support +this intrinsic. + Standard C Library Intrinsics ----------------------------- |
