[cfe-dev] Treatment of __restrict__

[Roberto Bagnara]

On 05/22/2010 11:20 AM, Roberto Bagnara wrote:
>
> void f(const char *__restrict__ out) {
>     out++;
> }
>
> The above testcase brings to the generation of the
> following dump:
>
> void f(char const *restrict out) (CompoundStmt 0x27ce5b0<d.c:1:38, line:4:1>
>     (DeclStmt 0x27be5a0<line:2:3, col:29>
>       0x27d2bc0 "char const *restrict d"
>     (BinaryOperator 0x27d2d20<line:3:3, col:7>  'char const *' '='
>       (DeclRefExpr 0x27d2c20<col:3>  'char const *restrict' Var='d' 0x27d2bc0)
>       (ImplicitCastExpr 0x27d2ce0<col:7>  'char const *restrict'<Unknown>
>         (ImplicitCastExpr 0x27d2ca0<col:7>  'char const *'<NoOp>
>           (DeclRefExpr 0x27d2c60<col:7>  'char const *restrict' ParmVar='out' 0x27cf800)))))
>
> This indicates that:
>
> - two apparently useless implicit casts are generated;
> - the BinaryOperator node's type has lost the restrict qualifier.
>
> Are these wanted?
> Best regards,
>
>       Roberto
>

Ping.

-- 
Prof. Roberto Bagnara
Applied Formal Methods Laboratory
Department of Mathematics, University of Parma, Italy
http://www.cs.unipr.it/~bagnara/
mailto:bagnara at cs.unipr.it