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| author | Chris Lattner <sabre@nondot.org> | 2008-01-15 04:34:22 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-01-15 04:34:22 +0000 |
| commit | 04c86181932551488b6866db4d557dbb8e35e859 (patch) | |
| tree | d30b0a86f20e5fb0bda7ec5ae8437a6da862d01c /docs/LangRef.html | |
| parent | fc149023d80ef4cb46157bb7275038de278bf041 (diff) | |
| download | external_llvm-04c86181932551488b6866db4d557dbb8e35e859.zip external_llvm-04c86181932551488b6866db4d557dbb8e35e859.tar.gz external_llvm-04c86181932551488b6866db4d557dbb8e35e859.tar.bz2 | |
clarify that byval is valid for any pointer argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45998 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/LangRef.html')
| -rw-r--r-- | docs/LangRef.html | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index fa50193..49bcc97 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -810,11 +810,12 @@ declare i32 @atoi(i8*) nounwind readonly target-specific</dd> <dt><tt>byval</tt></dt> - <dd>This indicates that the pointer parameter is really an aggregate that - was passed by value to the function. The attribute implies that a hidden - copy of the struct is made between the caller and the callee, so the - callee is unable to modify the struct in the callee. This attribute is only - valid on llvm pointer arguments.</dd> + <dd>This indicates that the pointer parameter should really be passed by + value to the function. The attribute implies that a hidden copy of the + pointee is made between the caller and the callee, so the callee is unable + to modify the value in the callee. This attribute is only valid on llvm + pointer arguments. It is generally used to pass structs and arrays by + value, but is also valid on scalars (even though this is silly).</dd> <dt><tt>sret</tt></dt> <dd>This indicates that the parameter specifies the address of a structure |