[flang][FIR] Add dependency from FIRDialect to LLVMDialect

For TBBAA attribute types.

Author: tblah

flang/include/flang/Optimizer/Dialect/FIRDialect.td

@@ -30,7 +30,9 @@ def fir_Dialect : Dialect {
   let dependentDialects = [
     // Arith dialect provides FastMathFlagsAttr
     // supported by some FIR operations.
-    "arith::ArithDialect"
+    "arith::ArithDialect",
+    // TBAA Tag types
+    "LLVM::LLVMDialect"
   ];
 }
 

flang/lib/Optimizer/Dialect/FIRDialect.cpp

@@ -14,6 +14,7 @@
 #include "flang/Optimizer/Dialect/FIRAttr.h"
 #include "flang/Optimizer/Dialect/FIROps.h"
 #include "flang/Optimizer/Dialect/FIRType.h"
+#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
 #include "mlir/Transforms/InliningUtils.h"
 
 using namespace fir;
@@ -58,6 +59,7 @@ struct FIRInlinerInterface : public mlir::DialectInlinerInterface {
 
 fir::FIROpsDialect::FIROpsDialect(mlir::MLIRContext *ctx)
     : mlir::Dialect("fir", ctx, mlir::TypeID::get<FIROpsDialect>()) {
+  getContext()->loadDialect<mlir::LLVM::LLVMDialect>();
   registerTypes();
   registerAttributes();
   addOperations<