[fir][NFC] Move RewritePatterns.td to CanonicalizationPatterns.td in Dialect

RewritePatterns.td/RewritePatterns.inc is used only by the
FIROps.cpp file. This patch move this file logically in the Dialect
folder together with FIRDialet, FIROps, FIRTypes ...
It also rename it to CanonicalizationPatterns.td.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D112522

flang/include/flang/Optimizer/Dialect/CMakeLists.txt

@@ -8,6 +8,10 @@ mlir_tablegen(FIROpsTypes.h.inc --gen-typedef-decls)
 mlir_tablegen(FIROpsTypes.cpp.inc --gen-typedef-defs)
 add_public_tablegen_target(FIROpsIncGen)
 
+set(LLVM_TARGET_DEFINITIONS CanonicalizationPatterns.td)
+mlir_tablegen(CanonicalizationPatterns.inc -gen-rewriters)
+add_public_tablegen_target(CanonicalizationPatternsIncGen)
+
 add_custom_target(flang-doc)
 set(dialect_doc_filename "FIRLangRef")
 

flang/include/flang/Optimizer/Dialect/CanonicalizationPatterns.td

@@ -1,4 +1,4 @@
-//===-- RewritePatterns.td - FIR Rewrite Patterns -----------*- tablegen -*-===//
+//===-- CanonicalizationPatterns.td - FIR Canonicalization Patterns -------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -49,7 +49,8 @@ def CombineConvertOptPattern
 def createConstantOp
     : NativeCodeCall<"$_builder.create<mlir::arith::ConstantOp>"
                      "($_loc, $_builder.getIndexType(), "
-                     "rewriter.getIndexAttr($1.dyn_cast<IntegerAttr>().getInt()))">;
+                     "rewriter.getIndexAttr($1.dyn_cast<IntegerAttr>()"
+                     ".getInt()))">;
 
 def ForwardConstantConvertPattern
     : Pat<(fir_ConvertOp:$res (Arith_ConstantOp:$cnt $attr)),

flang/include/flang/Optimizer/Transforms/CMakeLists.txt

@@ -1,8 +1,3 @@
-
-set(LLVM_TARGET_DEFINITIONS RewritePatterns.td)
-mlir_tablegen(RewritePatterns.inc -gen-rewriters)
-add_public_tablegen_target(RewritePatternsIncGen)
-
 set(LLVM_TARGET_DEFINITIONS Passes.td)
 mlir_tablegen(Passes.h.inc -gen-pass-decls -name OptTransform)
 add_public_tablegen_target(FIROptTransformsPassIncGen)

flang/lib/Optimizer/Dialect/CMakeLists.txt

@@ -5,6 +5,7 @@ add_flang_library(FIRDialect
   FIRType.cpp
 
   DEPENDS
+  CanonicalizationPatternsIncGen
   FIRSupport
   FIROpsIncGen
 

flang/lib/Optimizer/Dialect/FIROps.cpp

@@ -25,7 +25,7 @@
 #include "llvm/ADT/TypeSwitch.h"
 
 namespace {
-#include "flang/Optimizer/Transforms/RewritePatterns.inc"
+#include "flang/Optimizer/Dialect/CanonicalizationPatterns.inc"
 } // namespace
 using namespace fir;
 

flang/lib/Optimizer/Transforms/CMakeLists.txt

@@ -11,7 +11,6 @@ add_flang_library(FIRTransforms
   FIRDialect
   FIRSupport
   FIROptTransformsPassIncGen
-  RewritePatternsIncGen
 
   LINK_LIBS
   FIRDialect