https://github.com/efriedma-quic commented:
The reason I'm suspicious of the getDeclareMapperVarRef check is that
SemaOpenMP::ActOnOMPIteratorExpr creates the variable (VarDecl::Create)
regardless. So what's supposed to happen for variables where
getDeclareMapperVarRef is false?
--------
Independent of your patch, the following seems to crash. Is it supposed to be
valid? Is there an open bug?
```
typedef struct myvec {
int a;
double *b;
} myvec_t;
void foo() {
#pragma omp declare mapper(id: myvec_t v) map(iterator(it=0:v.a), tofrom:
v.b[it])
myvec_t s;
#pragma omp target map(mapper(id), to:s)
{
}
}
```
https://github.com/llvm/llvm-project/pull/141507
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