4c01a58008
update_analyze_test_checks.py is an invaluable tool in updating tests. Unfortunately, it only supports output from the CostModel, ScalarEvolution, and LoopVectorize analyses. Many LoopAccessAnalysis tests use hand-crafted CHECK lines, and it is moreover tedious to generate these CHECK lines, as the output fom the analysis is not stable, and requires the test-writer to hand-craft FileCheck matches. Alleviate this pain, and support output from: $ opt -passes='print<loop-accesses>' This patch includes several non-trivial changes including: - Preserving whitespace at the beginning of the line, so that the LAA output can be properly indented. - Regexes matching the unstable output, which is basically a pointer address hex. - Separating is_analyze from preserve_names clearly, as the former was formerly used as an overload for the latter. To demonstate the utility of this patch, several tests in LoopAccessAnalysis have been auto-generated by update_analyze_test_checks.py.
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
//===- LoopAccessAnalysisPrinter.cpp - Loop Access Analysis Printer --------==//
|
|
//
|
|
// 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 "llvm/Transforms/Scalar/LoopAccessAnalysisPrinter.h"
|
|
#include "llvm/ADT/PriorityWorklist.h"
|
|
#include "llvm/Analysis/LoopAccessAnalysis.h"
|
|
#include "llvm/Analysis/LoopInfo.h"
|
|
#include "llvm/Transforms/Utils/LoopUtils.h"
|
|
|
|
using namespace llvm;
|
|
|
|
#define DEBUG_TYPE "loop-accesses"
|
|
|
|
PreservedAnalyses LoopAccessInfoPrinterPass::run(Function &F,
|
|
FunctionAnalysisManager &AM) {
|
|
auto &LAIs = AM.getResult<LoopAccessAnalysis>(F);
|
|
auto &LI = AM.getResult<LoopAnalysis>(F);
|
|
OS << "Printing analysis 'Loop Access Analysis' for function '" << F.getName()
|
|
<< "':\n";
|
|
|
|
SmallPriorityWorklist<Loop *, 4> Worklist;
|
|
appendLoopsToWorklist(LI, Worklist);
|
|
while (!Worklist.empty()) {
|
|
Loop *L = Worklist.pop_back_val();
|
|
OS.indent(2) << L->getHeader()->getName() << ":\n";
|
|
LAIs.getInfo(*L).print(OS, 4);
|
|
}
|
|
return PreservedAnalyses::all();
|
|
}
|