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Diffstat (limited to 'llvm/docs/LangRef.rst')
| -rw-r--r-- | llvm/docs/LangRef.rst | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index 1a8886dd79c9..3a5763d4747c 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -3322,8 +3322,12 @@ as follows: default address space 0. The value of ``<as>`` must be in the range [1,2^24). The optional ``<flags>`` are used to specify properties of pointers in this address space: the character ``u`` marks pointers as having an unstable - representation, and ``e`` marks pointers having external state. See - :ref:`Non-Integral Pointer Types <nointptrtype>`. + representation; ``e`` marks pointers having external state; ``z`` marks the + value of the nullptr as all-zeros (default behavior if it is not specified); + ``o`` marks the value of the nullptr as all-ones; ``c`` marks the value of + the nullptr as custom (neither all-zeros nor all-ones), such that LLVM will + not be able to fold various casts involving nullptr. + See :ref:`Non-Integral Pointer Types <nointptrtype>`. ``i<size>:<abi>[:<pref>]`` This specifies the alignment for an integer type of a given bit |