Move Affine to Standard conversion to lib/Conversion

This is essentially a dialect conversion and conceptually belongs to
conversions.

PiperOrigin-RevId: 280460034

11 files changed, 17 insertions, 12 deletions

diff --git a/mlir/examples/toy/Ch6/CMakeLists.txt b/mlir/examples/toy/Ch6/CMakeLists.txt
index d66c921b15e..c342ed1d4a0 100644
--- a/mlir/examples/toy/Ch6/CMakeLists.txt
+++ b/mlir/examples/toy/Ch6/CMakeLists.txt
@@ -31,6 +31,7 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR}/include/)
 target_link_libraries(toyc-ch6
   PRIVATE
     MLIRAffineOps
+    MLIRAffineToStandard
     MLIRAnalysis
     MLIRExecutionEngine
     MLIRIR
@@ -45,6 +46,7 @@ target_link_libraries(toyc-ch6
     )
 
 whole_archive_link(toyc-ch6
+  MLIRAffineToStandard
   MLIRAffineOps
   MLIRLLVMIR
   MLIRStandardOps
diff --git a/mlir/examples/toy/Ch6/mlir/LowerToLLVM.cpp b/mlir/examples/toy/Ch6/mlir/LowerToLLVM.cpp
index 091eada5ac3..ba79c348894 100644
--- a/mlir/examples/toy/Ch6/mlir/LowerToLLVM.cpp
+++ b/mlir/examples/toy/Ch6/mlir/LowerToLLVM.cpp
@@ -24,6 +24,7 @@
 #include "toy/Dialect.h"
 #include "toy/Passes.h"
 
+#include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
 #include "mlir/Conversion/LoopToStandard/ConvertLoopToStandard.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVM.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVMPass.h"
@@ -33,7 +34,6 @@
 #include "mlir/Dialect/StandardOps/Ops.h"
 #include "mlir/Pass/Pass.h"
 #include "mlir/Transforms/DialectConversion.h"
-#include "mlir/Transforms/LowerAffine.h"
 #include "llvm/ADT/Sequence.h"
 
 using namespace mlir;
diff --git a/mlir/examples/toy/Ch7/CMakeLists.txt b/mlir/examples/toy/Ch7/CMakeLists.txt
index fc26425f038..5956d7f4d9b 100644
--- a/mlir/examples/toy/Ch7/CMakeLists.txt
+++ b/mlir/examples/toy/Ch7/CMakeLists.txt
@@ -31,6 +31,7 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR}/include/)
 target_link_libraries(toyc-ch7
   PRIVATE
     MLIRAffineOps
+    MLIRAffineToStandard
     MLIRAnalysis
     MLIRExecutionEngine
     MLIRIR
@@ -45,6 +46,7 @@ target_link_libraries(toyc-ch7
     )
 
 whole_archive_link(toyc-ch7
+  MLIRAffineToStandard
   MLIRAffineOps
   MLIRLLVMIR
   MLIRStandardOps
diff --git a/mlir/examples/toy/Ch7/mlir/LowerToLLVM.cpp b/mlir/examples/toy/Ch7/mlir/LowerToLLVM.cpp
index 091eada5ac3..ba79c348894 100644
--- a/mlir/examples/toy/Ch7/mlir/LowerToLLVM.cpp
+++ b/mlir/examples/toy/Ch7/mlir/LowerToLLVM.cpp
@@ -24,6 +24,7 @@
 #include "toy/Dialect.h"
 #include "toy/Passes.h"
 
+#include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
 #include "mlir/Conversion/LoopToStandard/ConvertLoopToStandard.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVM.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVMPass.h"
@@ -33,7 +34,6 @@
 #include "mlir/Dialect/StandardOps/Ops.h"
 #include "mlir/Pass/Pass.h"
 #include "mlir/Transforms/DialectConversion.h"
-#include "mlir/Transforms/LowerAffine.h"
 #include "llvm/ADT/Sequence.h"
 
 using namespace mlir;
diff --git a/mlir/include/mlir/Transforms/LowerAffine.h b/mlir/include/mlir/Conversion/AffineToStandard/AffineToStandard.h
index 5fae4763bf7..b5c51ad4b4c 100644
--- a/mlir/include/mlir/Transforms/LowerAffine.h
+++ b/mlir/include/mlir/Conversion/AffineToStandard/AffineToStandard.h
@@ -1,4 +1,4 @@
-//===- LowerAffine.h - Convert Affine to Standard dialect -------*- C++ -*-===//
+//===- AffineToStandard.h - Convert Affine to Standard dialect --*- C++ -*-===//
 //
 // Copyright 2019 The MLIR Authors.
 //
@@ -15,11 +15,10 @@
 // limitations under the License.
 // =============================================================================
 
-#ifndef MLIR_TRANSFORMS_LOWERAFFINE_H
-#define MLIR_TRANSFORMS_LOWERAFFINE_H
+#ifndef MLIR_CONVERSION_AFFINETOSTANDARD_AFFINETOSTANDARD_H
+#define MLIR_CONVERSION_AFFINETOSTANDARD_AFFINETOSTANDARD_H
 
 #include "mlir/Support/LLVM.h"
-#include <vector>
 
 namespace mlir {
 class AffineExpr;
@@ -55,4 +54,4 @@ Value *lowerAffineLowerBound(AffineForOp op, OpBuilder &builder);
 Value *lowerAffineUpperBound(AffineForOp op, OpBuilder &builder);
 } // namespace mlir
 
-#endif // MLIR_TRANSFORMS_LOWERAFFINE_H
+#endif // MLIR_CONVERSION_AFFINETOSTANDARD_AFFINETOSTANDARD_H
diff --git a/mlir/lib/Transforms/LowerAffine.cpp b/mlir/lib/Conversion/AffineToStandard/AffineToStandard.cpp
index d50c5e0e8c7..98d80ede238 100644
--- a/mlir/lib/Transforms/LowerAffine.cpp
+++ b/mlir/lib/Conversion/AffineToStandard/AffineToStandard.cpp
@@ -1,4 +1,4 @@
-//===- LowerAffine.cpp - Lower affine constructs to primitives ------------===//
+//===- AffineToStandard.cpp - Lower affine constructs to primitives -------===//
 //
 // Copyright 2019 The MLIR Authors.
 //
@@ -20,7 +20,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "mlir/Transforms/LowerAffine.h"
+#include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
+
 #include "mlir/Dialect/AffineOps/AffineOps.h"
 #include "mlir/Dialect/LoopOps/LoopOps.h"
 #include "mlir/Dialect/StandardOps/Ops.h"
diff --git a/mlir/lib/Conversion/CMakeLists.txt b/mlir/lib/Conversion/CMakeLists.txt
index c0fd6b83fd9..1639a301205 100644
--- a/mlir/lib/Conversion/CMakeLists.txt
+++ b/mlir/lib/Conversion/CMakeLists.txt
@@ -1,3 +1,4 @@
+add_subdirectory(AffineToStandard)
 add_subdirectory(GPUToCUDA)
 add_subdirectory(GPUToNVVM)
 add_subdirectory(GPUToROCDL)
diff --git a/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp b/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
index e33b8401c74..eb0b0d5931a 100644
--- a/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
+++ b/mlir/lib/Conversion/LoopsToGPU/LoopsToGPU.cpp
@@ -23,6 +23,7 @@
 
 #include "mlir/Conversion/LoopsToGPU/LoopsToGPU.h"
 
+#include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
 #include "mlir/Dialect/AffineOps/AffineOps.h"
 #include "mlir/Dialect/GPU/GPUDialect.h"
 #include "mlir/Dialect/LoopOps/LoopOps.h"
@@ -30,7 +31,6 @@
 #include "mlir/IR/AffineExpr.h"
 #include "mlir/IR/Builders.h"
 #include "mlir/Transforms/LoopUtils.h"
-#include "mlir/Transforms/LowerAffine.h"
 #include "mlir/Transforms/RegionUtils.h"
 #include "llvm/ADT/Sequence.h"
 #include "llvm/Support/Debug.h"
diff --git a/mlir/lib/Dialect/Linalg/Transforms/LowerToLLVMDialect.cpp b/mlir/lib/Dialect/Linalg/Transforms/LowerToLLVMDialect.cpp
index 61614aaf417..c0ed70291cd 100644
--- a/mlir/lib/Dialect/Linalg/Transforms/LowerToLLVMDialect.cpp
+++ b/mlir/lib/Dialect/Linalg/Transforms/LowerToLLVMDialect.cpp
@@ -15,6 +15,7 @@
 // limitations under the License.
 // =============================================================================
 
+#include "mlir/Conversion/AffineToStandard/AffineToStandard.h"
 #include "mlir/Conversion/LoopToStandard/ConvertLoopToStandard.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVM.h"
 #include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVMPass.h"
@@ -40,7 +41,6 @@
 #include "mlir/Pass/PassManager.h"
 #include "mlir/Support/LogicalResult.h"
 #include "mlir/Transforms/DialectConversion.h"
-#include "mlir/Transforms/LowerAffine.h"
 #include "mlir/Transforms/Passes.h"
 
 #include "llvm/ADT/SetVector.h"
diff --git a/mlir/lib/Transforms/CMakeLists.txt b/mlir/lib/Transforms/CMakeLists.txt
index 10daf85da9e..de7801bf215 100644
--- a/mlir/lib/Transforms/CMakeLists.txt
+++ b/mlir/lib/Transforms/CMakeLists.txt
@@ -13,7 +13,6 @@ add_llvm_library(MLIRTransforms
   LoopTiling.cpp
   LoopUnrollAndJam.cpp
   LoopUnroll.cpp
-  LowerAffine.cpp
   LowerVectorTransfers.cpp
   MaterializeVectors.cpp
   MemRefDataFlowOpt.cpp
diff --git a/mlir/tools/mlir-opt/CMakeLists.txt b/mlir/tools/mlir-opt/CMakeLists.txt
index a279b0f4afc..23515b47453 100644
--- a/mlir/tools/mlir-opt/CMakeLists.txt
+++ b/mlir/tools/mlir-opt/CMakeLists.txt
@@ -17,6 +17,7 @@ target_link_libraries(MLIRMlirOptLib ${LIB_LIBS})
 
 set(LIBS
   MLIRAffineOps
+  MLIRAffineToStandard
   MLIRLoopsToGPU
   MLIRAnalysis
   MLIRLoopToStandard