diff options
| author | Torok Edwin <edwintorok@gmail.com> | 2008-11-24 08:02:24 +0000 |
|---|---|---|
| committer | Torok Edwin <edwintorok@gmail.com> | 2008-11-24 08:02:24 +0000 |
| commit | 9682607ad63146d4b7291a9b5eb74a5f6196d80f (patch) | |
| tree | f63cbadf7d34fb9685a2a24116bb8760b6cd1459 | |
| parent | 027fdbe3ba6762b9867c6f891d64f76b7d6a4557 (diff) | |
NULL, unique pointers from malloc(0), and freed pointers are legal values for
noalias attribute parameters/return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59955 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | docs/LangRef.html | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index b469022b76..7c770cb437 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -894,7 +894,9 @@ declare signext i8 @returns_signed_char() parameter. The caller is responsible for ensuring that this is the case. On a function return value, <tt>noalias</tt> additionally indicates that the pointer does not alias any other pointers visible to the - caller.</dd> + caller. Note that this applies only to pointers that can be used to actually + load/store a value: NULL, unique pointers from malloc(0), and freed pointers + are considered to not alias anything.</dd> <dt><tt>nest</tt></dt> <dd>This indicates that the pointer parameter can be excised using the |