[cfe-dev] annotating loop statements

Redmond, Paul paul.redmond at intel.com
Thu Feb 7 13:41:05 PST 2013

Could I use AttributedStmt for this? I don't see it being used for anything else..


On 2013-02-07, at 12:45 PM, Redmond, Paul wrote:

> Hi,
> I'm working on #pragma ivdep [1] in clang and I'm looking for advice on the best way to annotate ForStmt/WhileStmt/DoStmt with the ivdep hint. I've attached my work in progress which handles parsing.
> I think there are two options:
> 1) add a flag to ForStmt/WhileStmt/DoStmt and toggle it in the parser
> 2) create a new statement (one that wraps a ForStmt/WhileStmt/DoStmt) that includes the flags
> Option 1) is simple but I do not think it's very clean or extensible. I think 2) is the most flexible because it could be extended to support #pragma simd for example.
> I think this is a common problem for openmp, amp, cilk, etc. and it'd be nice to have a solution that can work for anyone.
> I'm not a clang expert by any means so I'd appreciate any input.
> thanks,
> Paul
> [1] http://software.intel.com/sites/products/documentation/studio/composer/en-us/2011Update/compiler_c/cref_cls/common/cppref_pragma_ivdep.htm
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