Files
clang-p2996/mlir/lib/Interfaces/CallInterfaces.cpp
River Riddle a5ea60456c [mlir] Update SCCP and the Inliner to use SymbolTableCollection for symbol lookups
This transforms the symbol lookups to O(1) from O(NM), greatly speeding up both passes. For a large MLIR module this shaved seconds off of the compilation time.

Differential Revision: https://reviews.llvm.org/D89522
2020-10-16 12:08:48 -07:00

39 lines
1.6 KiB
C++

//===- CallInterfaces.cpp - ControlFlow Interfaces ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "mlir/Interfaces/CallInterfaces.h"
using namespace mlir;
//===----------------------------------------------------------------------===//
// CallOpInterface
//===----------------------------------------------------------------------===//
/// Resolve the callable operation for given callee to a CallableOpInterface, or
/// nullptr if a valid callable was not resolved. `symbolTable` is an optional
/// parameter that will allow for using a cached symbol table for symbol lookups
/// instead of performing an O(N) scan.
Operation *
CallOpInterface::resolveCallable(SymbolTableCollection *symbolTable) {
CallInterfaceCallable callable = getCallableForCallee();
if (auto symbolVal = callable.dyn_cast<Value>())
return symbolVal.getDefiningOp();
// If the callable isn't a value, lookup the symbol reference.
auto symbolRef = callable.get<SymbolRefAttr>();
if (symbolTable)
return symbolTable->lookupNearestSymbolFrom(getOperation(), symbolRef);
return SymbolTable::lookupNearestSymbolFrom(getOperation(), symbolRef);
}
//===----------------------------------------------------------------------===//
// CallInterfaces
//===----------------------------------------------------------------------===//
#include "mlir/Interfaces/CallInterfaces.cpp.inc"