[cfe-dev] Get name of MemberExpr expression

[Qiufeng Yu via cfe-dev]

Say the original code is int bx = blockIdx.x, I already found the
MemberExpr of this line of code, which is blockIdx.x. But all I have is
only this MemberExpr. What I need is the actual string representation of
this MemberExpr so that I can perform the string comparison to make sure
that this MemberExpr is indeed blockIdx.x, and perform the rewriting
process.

On Thu, Dec 7, 2017 at 3:48 AM, Alexey Knyshev <alexey.knyshev at gmail.com>
wrote:

> Hi,
> Do you mean finding AST corresponding to MemberExpr or you already found
> then and trying to figure out SourceLocation for them?
>
> Regards, Alexey K
>
> 2017-12-07 11:40 GMT+03:00 Qiufeng Yu via cfe-dev <cfe-dev at lists.llvm.org>
> :
>
>> Hi all,
>>
>> I'm new to clang and currently working on a project where I need to
>> rewrite some codes in CUDA source file.
>>
>> For example, if I have the following CUDA code:
>>
>> int bx = blockIdx.x;
>> int by = blockIdx.y;
>>
>> I want to rewrite the blockIdx and blockIdx.x and blockIdx.y to some
>> other code:
>> int bx = something else;
>> int by = something else;
>>
>> My problem is that how do I find the MemberExpr blockIdx,x and blockIdx.y?
>>
>> I know how to get the MemberExpr, but I have no clue how to extract the
>> name of the MemberExpr in order to know that it is the right MemberExpr for
>> me to rewrite.
>>
>> Any help is appreciated.
>>
>>
>> Patrick
>>
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>>
>>
>
>
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