[flang][NFC] Move current inliner files in Dialect directory

[clementval]

Summary

This patch just move the files from the Transforms directory to
the Dialect directory.

flang/include/flang/Optimizer/Dialect/FIRDialect.h

 //
 //===----------------------------------------------------------------------===//
 
 #ifndef FORTRAN_OPTIMIZER_DIALECT_FIRDIALECT_H
 #define FORTRAN_OPTIMIZER_DIALECT_FIRDIALECT_H
 
 #include "mlir/IR/Dialect.h"
 
+namespace mlir {
+class BlockAndValueMapping;
+} // namespace mlir
+
 namespace fir {
 
 /// FIR dialect
 class FIROpsDialect final : public mlir::Dialect {
 public:
   explicit FIROpsDialect(mlir::MLIRContext *ctx);
   virtual ~FIROpsDialect();
 

 class FIRCodeGenDialect final : public mlir::Dialect {
 public:
   explicit FIRCodeGenDialect(mlir::MLIRContext *ctx);
   virtual ~FIRCodeGenDialect();
 
   static llvm::StringRef getDialectNamespace() { return "fircg"; }
 };
 
+/// Support for inlining on FIR.
+bool canLegallyInline(mlir::Operation *op, mlir::Region *reg, bool,
+                      mlir::BlockAndValueMapping &map);
+bool canLegallyInline(mlir::Operation *, mlir::Operation *, bool);
+
 } // namespace fir
 
 #endif // FORTRAN_OPTIMIZER_DIALECT_FIRDIALECT_H

flang/include/flang/Optimizer/Transforms/Passes.h

 std::unique_ptr<mlir::Pass> createArrayValueCopyPass();
 std::unique_ptr<mlir::Pass> createFirToCfgPass();
 std::unique_ptr<mlir::Pass> createCharacterConversionPass();
 std::unique_ptr<mlir::Pass> createExternalNameConversionPass();
 std::unique_ptr<mlir::Pass> createMemDataFlowOptPass();
 std::unique_ptr<mlir::Pass> createPromoteToAffinePass();
 std::unique_ptr<mlir::Pass> createMemoryAllocationPass();
 
-/// Support for inlining on FIR.
-bool canLegallyInline(mlir::Operation *op, mlir::Region *reg,
-                      mlir::BlockAndValueMapping &map);
-
 // declarative passes
 #define GEN_PASS_REGISTRATION
 #include "flang/Optimizer/Transforms/Passes.h.inc"
 
 } // namespace fir
 
 #endif // OPTIMIZER_TRANSFORMS_PASSES_H

flang/lib/Optimizer/Dialect/CMakeLists.txt

 add_flang_library(FIRDialect
   FIRAttr.cpp
   FIRDialect.cpp
   FIROps.cpp
   FIRType.cpp
+  Inliner.cpp
 
   DEPENDS
   CanonicalizationPatternsIncGen
   FIRSupport
   FIROpsIncGen
 
   LINK_LIBS
   FIRSupport

flang/lib/Optimizer/Dialect/Inliner.cpp

 //===-- Inliner.cpp -------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "flang/Optimizer/Dialect/FIRDialect.h"
-#include "flang/Optimizer/Dialect/FIROps.h"
-#include "flang/Optimizer/Transforms/Passes.h"
-#include "mlir/Transforms/Passes.h"
 #include "llvm/Support/CommandLine.h"
 
 static llvm::cl::opt<bool>
     aggressivelyInline("inline-all",
                        llvm::cl::desc("aggressively inline everything"),
                        llvm::cl::init(false));
 
 /// Should we inline the callable `op` into region `reg`?
-bool fir::canLegallyInline(mlir::Operation *op, mlir::Region *reg,
-                           mlir::BlockAndValueMapping &map) {
+bool fir::canLegallyInline(mlir::Operation *, mlir::Region *, bool,
+                           mlir::BlockAndValueMapping &) {
+  return aggressivelyInline;
+}
+
+bool fir::canLegallyInline(mlir::Operation *, mlir::Operation *, bool) {
   return aggressivelyInline;
 }

flang/lib/Optimizer/Transforms/CMakeLists.txt

 add_flang_library(FIRTransforms
   AbstractResult.cpp
   AffinePromotion.cpp
   AffineDemotion.cpp
   CharacterConversion.cpp
   ArrayValueCopy.cpp
-  Inliner.cpp
   ExternalNameConversion.cpp
   MemoryAllocation.cpp
   MemRefDataFlowOpt.cpp
   RewriteLoop.cpp
 
   DEPENDS
   FIRBuilder
   FIRDialect