[mlir] Rename the Standard dialect to the Func dialect

The last remaining operations in the standard dialect all revolve around
FuncOp/function related constructs. This patch simply handles the initial
renaming (which by itself is already huge), but there are a large number
of cleanups unlocked/necessary afterwards:

* Removing a bunch of unnecessary dependencies on Func
* Cleaning up the From/ToStandard conversion passes
* Preparing for the move of FuncOp to the Func dialect

See the discussion at https://discourse.llvm.org/t/standard-dialect-the-final-chapter/6061

Differential Revision: https://reviews.llvm.org/D120624

Author: River707

flang/include/flang/Lower/Support/Utils.h

@@ -16,7 +16,7 @@
 #include "flang/Common/indirection.h"
 #include "flang/Parser/char-block.h"
 #include "flang/Semantics/tools.h"
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "mlir/IR/BuiltinAttributes.h"
 #include "llvm/ADT/StringRef.h"
 #include <cstdint>

flang/include/flang/Optimizer/Builder/Factory.h

@@ -17,7 +17,7 @@
 
 #include "flang/Optimizer/Dialect/FIROps.h"
 #include "flang/Optimizer/Dialect/FIRType.h"
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "llvm/ADT/iterator_range.h"
 
 namespace mlir {

flang/include/flang/Optimizer/Builder/Runtime/Character.h

@@ -9,7 +9,7 @@
 #ifndef FORTRAN_OPTIMIZER_BUILDER_RUNTIME_CHARACTER_H
 #define FORTRAN_OPTIMIZER_BUILDER_RUNTIME_CHARACTER_H
 
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 
 namespace fir {
 class ExtendedValue;

flang/include/flang/Optimizer/Builder/Runtime/Numeric.h

@@ -9,7 +9,7 @@
 #ifndef FORTRAN_OPTIMIZER_BUILDER_RUNTIME_NUMERIC_H
 #define FORTRAN_OPTIMIZER_BUILDER_RUNTIME_NUMERIC_H
 
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 
 namespace fir {
 class ExtendedValue;

flang/include/flang/Optimizer/Builder/Runtime/Reduction.h

@@ -16,7 +16,7 @@
 #ifndef FORTRAN_OPTIMIZER_BUILDER_RUNTIME_REDUCTION_H
 #define FORTRAN_OPTIMIZER_BUILDER_RUNTIME_REDUCTION_H
 
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 
 namespace fir {
 class ExtendedValue;

flang/include/flang/Optimizer/Builder/Runtime/Transformational.h

@@ -10,7 +10,7 @@
 #ifndef FORTRAN_OPTIMIZER_BUILDER_RUNTIME_TRANSFORMATIONAL_H
 #define FORTRAN_OPTIMIZER_BUILDER_RUNTIME_TRANSFORMATIONAL_H
 
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 
 namespace fir {
 class ExtendedValue;

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

@@ -16,7 +16,6 @@
 
 include "mlir/IR/OpBase.td"
 include "mlir/Dialect/Arithmetic/IR/ArithmeticOps.td"
-include "mlir/Dialect/StandardOps/IR/Ops.td"
 include "flang/Optimizer/Dialect/FIROps.td"
 
 def IdenticalTypePred : Constraint<CPred<"$0.getType() == $1.getType()">>;

flang/include/flang/Optimizer/Dialect/FIROps.h

@@ -11,7 +11,7 @@
 
 #include "flang/Optimizer/Dialect/FIRType.h"
 #include "mlir/Dialect/Arithmetic/IR/Arithmetic.h"
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "mlir/Interfaces/LoopLikeInterface.h"
 #include "mlir/Interfaces/SideEffectInterfaces.h"
 

flang/include/flang/Optimizer/Dialect/FIROpsSupport.h

@@ -10,7 +10,7 @@
 #define FORTRAN_OPTIMIZER_DIALECT_FIROPSSUPPORT_H
 
 #include "flang/Optimizer/Dialect/FIROps.h"
-#include "mlir/Dialect/StandardOps/IR/Ops.h"
+#include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "mlir/IR/BuiltinOps.h"
 
 namespace fir {
@@ -25,7 +25,7 @@ inline bool nonVolatileLoad(mlir::Operation *op) {
 /// return true iff the Operation is a call
 inline bool isaCall(mlir::Operation *op) {
   return isa<fir::CallOp>(op) || isa<fir::DispatchOp>(op) ||
-         isa<mlir::CallOp>(op) || isa<mlir::CallIndirectOp>(op);
+         isa<mlir::func::CallOp>(op) || isa<mlir::func::CallIndirectOp>(op);
 }
 
 /// return true iff the Operation is a fir::CallOp, fir::DispatchOp,

flang/include/flang/Optimizer/Support/InitFIR.h

@@ -28,7 +28,7 @@ namespace fir::support {
   mlir::AffineDialect, FIROpsDialect, mlir::acc::OpenACCDialect,               \
       mlir::omp::OpenMPDialect, mlir::scf::SCFDialect,                         \
       mlir::arith::ArithmeticDialect, mlir::cf::ControlFlowDialect,            \
-      mlir::StandardOpsDialect, mlir::vector::VectorDialect
+      mlir::func::FuncDialect, mlir::vector::VectorDialect
 
 // The definitive list of dialects used by flang.
 #define FLANG_DIALECT_LIST                                                     \