[flang-commits] [clang] [flang] [Flang] LoongArch64 support for BIND(C) derived types in mabi=lp64d. (PR #117108)

[Lu Weining via flang-commits]

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@@ -1151,6 +1154,317 @@ struct TargetLoongArch64 : public GenericTarget<TargetLoongArch64> {
 
     return GenericTarget::integerArgumentType(loc, argTy);
   }
+
+  /// Flatten non-basic types, resulting in an array of types containing only
+  /// `IntegerType` and `FloatType`.
+  std::vector<mlir::Type> flattenTypeList(mlir::Location loc,
+                                          const mlir::Type type) const {
+    std::vector<mlir::Type> flatTypes;
+
+    llvm::TypeSwitch<mlir::Type>(type)
+        .template Case<mlir::IntegerType>([&](mlir::IntegerType intTy) {
+          if (intTy.getWidth() != 0)
+            flatTypes.push_back(intTy);
+        })
+        .template Case<mlir::FloatType>([&](mlir::FloatType floatTy) {
+          if (floatTy.getWidth() != 0)
+            flatTypes.push_back(floatTy);
+        })
+        .template Case<mlir::ComplexType>([&](mlir::ComplexType cmplx) {
+          const auto *sem = &floatToSemantics(kindMap, cmplx.getElementType());
+          if (sem == &llvm::APFloat::IEEEsingle() ||
+              sem == &llvm::APFloat::IEEEdouble() ||
+              sem == &llvm::APFloat::IEEEquad())
+            std::fill_n(std::back_inserter(flatTypes), 2,
+                        cmplx.getElementType());
+          else
+            TODO(loc, "unsupported complx type(not IEEEsingle, IEEEdouble, "
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SixWeining wrote:

typo: complx -> complex

https://github.com/llvm/llvm-project/pull/117108