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| -rw-r--r-- | docs/LangRef.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/LangRef.rst b/docs/LangRef.rst index 2449e01752..b75c6b1b80 100644 --- a/docs/LangRef.rst +++ b/docs/LangRef.rst @@ -1178,6 +1178,30 @@ don't have to specify the string. This will disable some optimizations that require precise layout information, but this also prevents those optimizations from introducing target specificity into the IR. +.. _langref_triple: + +Target Triple +------------- + +A module may specify a target triple string that describes the target +host. The syntax for the target triple is simply: + +.. code-block:: llvm + + target triple = "x86_64-apple-macosx10.7.0" + +The *target triple* string consists of a series of identifiers delimited +by the minus sign character ('-'). The canonical forms are: + +:: + + ARCHITECTURE-VENDOR-OPERATING_SYSTEM + ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT + +This information is passed along to the backend so that it generates +code for the proper architecture. It's possible to override this on the +command line with the ``-mtriple`` command line option. + .. _pointeraliasing: Pointer Aliasing Rules |