[mlir] Remove deprecated GEN_PASS_CLASSES (#167496)

Update CIR & flang in preparation for removing in #166904 (split out
from there, sufficient approvals there but wanted to enable more time to
removing feature).

Author: jpienaar

clang/lib/CIR/Dialect/Transforms/CIRCanonicalize.cpp

@@ -26,6 +26,11 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_CIRCANONICALIZE
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 namespace {
 
 /// Removes branches between two blocks if it is the only branch.
@@ -101,7 +106,8 @@ struct RemoveEmptySwitch : public OpRewritePattern<SwitchOp> {
 // CIRCanonicalizePass
 //===----------------------------------------------------------------------===//
 
-struct CIRCanonicalizePass : public CIRCanonicalizeBase<CIRCanonicalizePass> {
+struct CIRCanonicalizePass
+    : public impl::CIRCanonicalizeBase<CIRCanonicalizePass> {
   using CIRCanonicalizeBase::CIRCanonicalizeBase;
 
   // The same operation rewriting done here could have been performed

clang/lib/CIR/Dialect/Transforms/CIRSimplify.cpp

@@ -21,6 +21,11 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_CIRSIMPLIFY
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 //===----------------------------------------------------------------------===//
 // Rewrite patterns
 //===----------------------------------------------------------------------===//
@@ -283,7 +288,7 @@ struct SimplifyVecSplat : public OpRewritePattern<VecSplatOp> {
 // CIRSimplifyPass
 //===----------------------------------------------------------------------===//
 
-struct CIRSimplifyPass : public CIRSimplifyBase<CIRSimplifyPass> {
+struct CIRSimplifyPass : public impl::CIRSimplifyBase<CIRSimplifyPass> {
   using CIRSimplifyBase::CIRSimplifyBase;
 
   void runOnOperation() override;

clang/lib/CIR/Dialect/Transforms/FlattenCFG.cpp

@@ -26,6 +26,11 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_CIRFLATTENCFG
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 namespace {
 
 /// Lowers operations with the terminator trait that have a single successor.
@@ -50,7 +55,7 @@ void walkRegionSkipping(
   });
 }
 
-struct CIRFlattenCFGPass : public CIRFlattenCFGBase<CIRFlattenCFGPass> {
+struct CIRFlattenCFGPass : public impl::CIRFlattenCFGBase<CIRFlattenCFGPass> {
 
   CIRFlattenCFGPass() = default;
   void runOnOperation() override;

clang/lib/CIR/Dialect/Transforms/GotoSolver.cpp

@@ -14,9 +14,14 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_GOTOSOLVER
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 namespace {
 
-struct GotoSolverPass : public GotoSolverBase<GotoSolverPass> {
+struct GotoSolverPass : public impl::GotoSolverBase<GotoSolverPass> {
   GotoSolverPass() = default;
   void runOnOperation() override;
 };

clang/lib/CIR/Dialect/Transforms/HoistAllocas.cpp

@@ -20,9 +20,14 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_HOISTALLOCAS
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 namespace {
 
-struct HoistAllocasPass : public HoistAllocasBase<HoistAllocasPass> {
+struct HoistAllocasPass : public impl::HoistAllocasBase<HoistAllocasPass> {
 
   HoistAllocasPass() = default;
   void runOnOperation() override;

clang/lib/CIR/Dialect/Transforms/LoweringPrepare.cpp

@@ -23,6 +23,11 @@
 using namespace mlir;
 using namespace cir;
 
+namespace mlir {
+#define GEN_PASS_DEF_LOWERINGPREPARE
+#include "clang/CIR/Dialect/Passes.h.inc"
+} // namespace mlir
+
 static SmallString<128> getTransformedFileName(mlir::ModuleOp mlirModule) {
   SmallString<128> fileName;
 
@@ -53,7 +58,8 @@ static cir::FuncOp getCalledFunction(cir::CallOp callOp) {
 }
 
 namespace {
-struct LoweringPreparePass : public LoweringPrepareBase<LoweringPreparePass> {
+struct LoweringPreparePass
+    : public impl::LoweringPrepareBase<LoweringPreparePass> {
   LoweringPreparePass() = default;
   void runOnOperation() override;
 

clang/lib/CIR/Dialect/Transforms/PassDetail.h

@@ -21,7 +21,7 @@ namespace mlir {
 template <typename ConcreteDialect>
 void registerDialect(DialectRegistry &registry);
 
-#define GEN_PASS_CLASSES
+#define GEN_PASS_DECL
 #include "clang/CIR/Dialect/Passes.h.inc"
 
 } // namespace mlir

flang/lib/Optimizer/CodeGen/PassDetail.h

@@ -18,7 +18,7 @@
 
 namespace fir {
 
-#define GEN_PASS_CLASSES
+#define GEN_PASS_DECL
 #include "flang/Optimizer/CodeGen/CGPasses.h.inc"
 
 } // namespace fir