NFC: Remove Function::getModule.

There is already a more general 'getParentOfType' method, and 'getModule' is likely to be misused as functions get placed within different regions than ModuleOp.

PiperOrigin-RevId: 257442243

mlir/examples/Linalg/Linalg1/include/linalg1/Common.h

@@ -93,8 +93,8 @@ inline void cleanupAndPrintFunction(mlir::FuncOp f) {
     }
   };
   auto pm = cleanupPassManager();
-  check(mlir::verify(f.getModule()));
-  check(pm->run(f.getModule()));
+  check(mlir::verify(f.getParentOfType<mlir::ModuleOp>()));
+  check(pm->run(f.getParentOfType<mlir::ModuleOp>()));
   if (printToOuts)
     f.print(llvm::outs());
 }

mlir/examples/Linalg/Linalg3/Example.cpp

@@ -173,7 +173,7 @@ TEST_FUNC(matmul_as_matvec_as_affine) {
   lowerToLoops(f);
   PassManager pm;
   pm.addPass(createLowerLinalgLoadStorePass());
-  if (succeeded(pm.run(f.getModule())))
+  if (succeeded(pm.run(f.getParentOfType<mlir::ModuleOp>())))
     cleanupAndPrintFunction(f);
 
   // clang-format off

mlir/examples/Linalg/Linalg4/Example.cpp

@@ -69,7 +69,7 @@ TEST_FUNC(matmul_tiled_loops) {
   lowerToTiledLoops(f, {8, 9});
   PassManager pm;
   pm.addPass(createLowerLinalgLoadStorePass());
-  if (succeeded(pm.run(f.getModule())))
+  if (succeeded(pm.run(f.getParentOfType<mlir::ModuleOp>())))
     cleanupAndPrintFunction(f);
 
   // clang-format off

mlir/include/mlir/IR/Function.h

@@ -27,8 +27,6 @@
 #include "llvm/ADT/SmallString.h"
 
 namespace mlir {
-class ModuleOp;
-
 //===--------------------------------------------------------------------===//
 // Function Operation.
 //===--------------------------------------------------------------------===//
@@ -60,9 +58,6 @@ public:
                     FunctionType type, ArrayRef<NamedAttribute> attrs,
                     ArrayRef<NamedAttributeList> argAttrs);
 
-  /// Get the parent module.
-  ModuleOp getModule();
-
   /// Operation hooks.
   static ParseResult parse(OpAsmParser *parser, OperationState *result);
   void print(OpAsmPrinter *p);

mlir/lib/Conversion/StandardToLLVM/ConvertStandardToLLVM.cpp

@@ -441,14 +441,14 @@ struct AllocOpLowering : public LLVMLegalizationPattern<AllocOp> {
             createIndexConstant(rewriter, op->getLoc(), elementSize)});
 
     // Insert the `malloc` declaration if it is not already present.
-    FuncOp mallocFunc =
-        op->getParentOfType<FuncOp>().getModule().getNamedFunction("malloc");
+    auto module = op->getParentOfType<ModuleOp>();
+    FuncOp mallocFunc = module.getNamedFunction("malloc");
     if (!mallocFunc) {
       auto mallocType =
           rewriter.getFunctionType(getIndexType(), getVoidPtrType());
       mallocFunc =
           FuncOp::create(rewriter.getUnknownLoc(), "malloc", mallocType);
-      op->getParentOfType<FuncOp>().getModule().push_back(mallocFunc);
+      module.push_back(mallocFunc);
     }
 
     // Allocate the underlying buffer and store a pointer to it in the MemRef
@@ -503,12 +503,11 @@ struct DeallocOpLowering : public LLVMLegalizationPattern<DeallocOp> {
     OperandAdaptor<DeallocOp> transformed(operands);
 
     // Insert the `free` declaration if it is not already present.
-    FuncOp freeFunc =
-        op->getParentOfType<FuncOp>().getModule().getNamedFunction("free");
+    FuncOp freeFunc = op->getParentOfType<ModuleOp>().getNamedFunction("free");
     if (!freeFunc) {
       auto freeType = rewriter.getFunctionType(getVoidPtrType(), {});
       freeFunc = FuncOp::create(rewriter.getUnknownLoc(), "free", freeType);
-      op->getParentOfType<FuncOp>().getModule().push_back(freeFunc);
+      op->getParentOfType<ModuleOp>().push_back(freeFunc);
     }
 
     auto type = transformed.memref()->getType().cast<LLVM::LLVMType>();

mlir/lib/IR/Function.cpp

@@ -73,12 +73,6 @@ void FuncOp::build(Builder *builder, OperationState *result, StringRef name,
       result->addAttribute(getArgAttrName(i, argAttrName), argDict);
 }
 
-/// Get the parent module.
-ModuleOp FuncOp::getModule() {
-  auto *parent = getOperation()->getContainingRegion();
-  return parent ? parent->getParentOfType<ModuleOp>() : nullptr;
-}
-
 /// Parsing/Printing methods.
 static ParseResult
 parseArgumentList(OpAsmParser *parser, SmallVectorImpl<Type> &argTypes,

mlir/lib/Linalg/Transforms/LowerToLLVMDialect.cpp

@@ -575,7 +575,7 @@ public:
 // types and returns pointers to the output types.
 static FuncOp getLLVMLibraryCallImplDefinition(FuncOp libFn) {
   auto implFnName = (libFn.getName().str() + "_impl");
-  auto module = libFn.getModule();
+  auto module = libFn.getParentOfType<ModuleOp>();
   if (auto f = module.getNamedFunction(implFnName)) {
     return f;
   }

mlir/lib/Pass/IRPrinting.cpp

@@ -66,7 +66,7 @@ static void printIR(const llvm::Any &ir, bool printModuleScope,
 
     // Print the function name and a newline before the Module.
     out << " (function: " << function.getName() << ")\n";
-    function.getModule().print(out);
+    function.getParentOfType<ModuleOp>().print(out);
     return;
   }
 

mlir/lib/Pass/Pass.cpp

@@ -340,7 +340,7 @@ PassInstrumentor *FunctionAnalysisManager::getPassInstrumentor() const {
 
 /// Create an analysis slice for the given child function.
 FunctionAnalysisManager ModuleAnalysisManager::slice(FuncOp func) {
-  assert(func.getModule() == moduleAnalyses.getIRUnit() &&
+  assert(func.getOperation()->getParentOp() == moduleAnalyses.getIRUnit() &&
          "function has a different parent module");
   auto it = functionAnalyses.find(func);
   if (it == functionAnalyses.end()) {