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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 | 352ab9b4a2a6ac23865f37ee129bfdcbab3aed07 (patch) | |
| tree | 443e9f14a1e8663fab9bb477c3859991ac5e94c3 /llvm/docs | |
| parent | 4d70ba313408957ed5614d06cb887b071d5f3576 (diff) | |
| download | bcm5719-llvm-352ab9b4a2a6ac23865f37ee129bfdcbab3aed07.tar.gz bcm5719-llvm-352ab9b4a2a6ac23865f37ee129bfdcbab3aed07.zip | |
clarify that byval is valid for any pointer argument.
llvm-svn: 45998
Diffstat (limited to 'llvm/docs')
| -rw-r--r-- | llvm/docs/LangRef.html | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html index fa5019370a4..49bcc974f08 100644 --- a/llvm/docs/LangRef.html +++ b/llvm/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 |
