[compiler-rt] r264612 - [PGO] Comment how function pointers for indirect calls are mapped to function names

[Sean Silva via llvm-commits]

I think this file has to use C-style /* */ comments.

On Mon, Mar 28, 2016 at 11:29 AM, Adam Nemet via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> Author: anemet
> Date: Mon Mar 28 13:29:36 2016
> New Revision: 264612
>
> URL: http://llvm.org/viewvc/llvm-project?rev=264612&view=rev
> Log:
> [PGO] Comment how function pointers for indirect calls are mapped to
> function names
>
> Summary:
> Hopefully this will make it easier for the next person to figure all
> this out...
>
> Reviewers: bogner, davidxl
>
> Subscribers: llvm-commits
>
> Differential Revision: http://reviews.llvm.org/D18490
>
> Modified:
>     compiler-rt/trunk/lib/profile/InstrProfData.inc
>
> Modified: compiler-rt/trunk/lib/profile/InstrProfData.inc
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/profile/InstrProfData.inc?rev=264612&r1=264611&r2=264612&view=diff
>
> ==============================================================================
> --- compiler-rt/trunk/lib/profile/InstrProfData.inc (original)
> +++ compiler-rt/trunk/lib/profile/InstrProfData.inc Mon Mar 28 13:29:36
> 2016
> @@ -73,6 +73,8 @@ INSTR_PROF_DATA(const uint64_t, llvm::Ty
>  INSTR_PROF_DATA(const IntPtrT, llvm::Type::getInt64PtrTy(Ctx),
> CounterPtr, \
>                  ConstantExpr::getBitCast(CounterPtr, \
>                  llvm::Type::getInt64PtrTy(Ctx)))
> +// This is used to map function pointers for the indirect call targets to
> +// function name hashes during the conversion from raw to merged profile
> data.
>  INSTR_PROF_DATA(const IntPtrT, llvm::Type::getInt8PtrTy(Ctx),
> FunctionPointer, \
>                  FunctionAddr)
>  INSTR_PROF_DATA(IntPtrT, llvm::Type::getInt8PtrTy(Ctx), Values, \
>
>
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