================
@@ -1250,6 +1254,236 @@ getSafeRepackAttrs(Fortran::lower::AbstractConverter
&converter) {
return attrs.empty() ? mlir::ArrayAttr{} : builder.getArrayAttr(attrs);
}
+//===----------------------------------------------------------------------===//
+// -finit-local= helpers
+//===----------------------------------------------------------------------===//
+
+/// Returns true when \p var is an automatic local variable eligible for
+/// -finit-local= initialization. Excluded: variables without a symbol,
+/// globals, dummy arguments, SAVE'd vars, ALLOCATABLE/POINTER, vars in
+/// an EQUIVALENCE set, and vars with explicit or default initialization.
+static bool shouldInitLocal(const Fortran::lower::pft::Variable &var) {
+ if (!var.hasSymbol() || var.isGlobal())
+ return false;
+ const Fortran::semantics::Symbol &sym = var.getSymbol();
+ if (Fortran::semantics::IsDummy(sym))
+ return false;
+ if (Fortran::semantics::IsSaved(sym))
+ return false;
+ if (Fortran::semantics::IsAllocatableOrPointer(sym))
+ return false;
+ if (Fortran::lower::hasDefaultInitialization(sym))
+ return false;
+ if (const auto *obj =
+ sym.detailsIf<Fortran::semantics::ObjectEntityDetails>())
+ if (obj->init())
+ return false;
+ if (Fortran::semantics::FindEquivalenceSet(sym))
+ return false;
+ return true;
----------------
DanielCChen wrote:
> Pinned and unified CUDA host storage is now initialized correctly. Managed
> host storage is still skipped even though an explicit assignment to a managed
> scalar lowers to `hlfir.assign`. Ordinary per-thread locals in an
> `attributes(global)` procedure are also skipped after they are marked
> `data_attr=device`, even though their storage uses `fir.alloca`.
>
> Could initialization eligibility account for the CUDA execution context?
> Could you also add two CUDA test cases: managed host storage and per-thread
> locals in an `attributes(global)` procedure?
Removed Managed from the exclusion list so non-allocatable managed storage is
initialized via a plain host store like unified and pinned; added test_managed
and test_global_local test cases to cover both scenarios.
https://github.com/llvm/llvm-project/pull/216164
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