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[mlir][bufferize] Delete getCalledFunction in drop-equivalent-buffer-results pass (NFC) #162432

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Merged
merged 1 commit into from
Oct 11, 2025
+2 −11
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[mlir][bufferize] Delete getCalledFunction in drop-equivalent-buffer-results pass (NFC) #162432

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13 changes: 2 additions & 11 deletions mlir/lib/Dialect/Bufferization/Transforms/DropEquivalentBufferResults.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -55,24 +55,15 @@ static func::ReturnOp getAssumedUniqueReturnOp(func::FuncOp funcOp) {
return returnOp;
}

/// Return the func::FuncOp called by `callOp`.
static func::FuncOp getCalledFunction(CallOpInterface callOp) {
SymbolRefAttr sym =
llvm::dyn_cast_if_present<SymbolRefAttr>(callOp.getCallableForCallee());
if (!sym)
return nullptr;
return dyn_cast_or_null<func::FuncOp>(
SymbolTable::lookupNearestSymbolFrom(callOp, sym));
}

LogicalResult
mlir::bufferization::dropEquivalentBufferResults(ModuleOp module) {
IRRewriter rewriter(module.getContext());

DenseMap<func::FuncOp, DenseSet<func::CallOp>> callerMap;
// Collect the mapping of functions to their call sites.
module.walk([&](func::CallOp callOp) {
if (func::FuncOp calledFunc = getCalledFunction(callOp)) {
if (func::FuncOp calledFunc =
dyn_cast_or_null<func::FuncOp>(callOp.resolveCallable())) {
callerMap[calledFunc].insert(callOp);
}
});
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