[clang] [CIR] Upstream Exception EhInflight op (PR #165621)

[Bruno Cardoso Lopes via cfe-commits]

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@@ -3002,6 +3002,88 @@ mlir::LogicalResult CIRToLLVMAllocExceptionOpLowering::matchAndRewrite(
   return mlir::success();
 }
 
+static mlir::LLVM::LLVMStructType
+getLLVMLandingPadStructTy(mlir::ConversionPatternRewriter &rewriter) {
+  // Create the landing pad type: struct { ptr, i32 }
+  mlir::MLIRContext *ctx = rewriter.getContext();
+  auto llvmPtr = mlir::LLVM::LLVMPointerType::get(ctx);
+  llvm::SmallVector<mlir::Type> structFields = {llvmPtr, rewriter.getI32Type()};
+  return mlir::LLVM::LLVMStructType::getLiteral(ctx, structFields);
+}
+
+mlir::LogicalResult CIRToLLVMEhInflightOpLowering::matchAndRewrite(
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bcardosolopes wrote:

We need a CIR -> LLVM test here

https://github.com/llvm/llvm-project/pull/165621