[llvm] r205374 - Add a doxygen comment to DebugLocEntry::Merge.

[David Blaikie]

On Tue, Apr 1, 2014 at 4:34 PM, Adrian Prantl <aprantl at apple.com> wrote:
> Author: adrian
> Date: Tue Apr  1 18:34:45 2014
> New Revision: 205374
>
> URL: http://llvm.org/viewvc/llvm-project?rev=205374&view=rev
> Log:
> Add a doxygen comment to DebugLocEntry::Merge.
>
> Modified:
>     llvm/trunk/lib/CodeGen/AsmPrinter/DebugLocEntry.h
>
> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DebugLocEntry.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DebugLocEntry.h?rev=205374&r1=205373&r2=205374&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DebugLocEntry.h (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DebugLocEntry.h Tue Apr  1 18:34:45 2014
> @@ -94,6 +94,9 @@ public:
>      EntryKind = E_ConstantInt;
>    }
>
> +  /// \brief Attempt to merge this DebugLocEntry with Next and return
> +  /// true if the merge was successful. Entries can be merged if they
> +  /// share the same Loc/Constant and their ranges are adjacent.

Technically, only if the specified entry is immediately after the
current one (ie: it doesn't work when called the other way around),
but I don't much care if that's not called out in the comment.

>    bool Merge(const DebugLocEntry &Next) {
>      if (End == Next.Begin && hasSameValueOrLocation(Next)) {
>        End = Next.End;
>
>
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