================
@@ -1317,6 +1381,50 @@ static void
instantiateLocal(Fortran::lower::AbstractConverter &converter,
Fortran::lower::genUnpackArray(*converterPtr, loc, *varDef, *sym);
});
}
+
+ /// These options do not initialize:
+ /// 1) Any variable already initialized
+ /// 2) objects with the POINTER attribute
+ /// 3) allocatable arrays
+ /// 4) variables that appear in an EQUIVALENCE statement
+
+ auto isEligibleForImplicitAssignment = [&var, &converter]() -> bool {
+ if (!var.hasSymbol())
+ return false;
+
+ const Fortran::semantics::Symbol &sym = var.getSymbol();
+ if (!sym.GetType())
+ return false;
+ if (const auto *details =
+ sym.detailsIf<Fortran::semantics::ObjectEntityDetails>()) {
+ if (details->init())
+ return false;
+ }
+
+ if (sym.attrs().test(Fortran::semantics::Attr::POINTER))
+ return false;
+
+ if (sym.Rank() > 0 &&
+ sym.attrs().test(Fortran::semantics::Attr::ALLOCATABLE))
+ return false;
+
+ if (Fortran::lower::pft::getDependentVariableList(sym).size() > 1)
+ return false;
----------------
NimishMishra wrote:
I wanted to check for symbols participating in the equivalence statements. But
you are right the check was too restrictive. I have updated it to
`Fortran::semantics::FindEquivalenceSet(sym) != nullptr`.
The testcase you provide is not zero-initialized by `-finit-local-zero`
https://github.com/llvm/llvm-project/pull/159788
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