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b26f00bb90
The size field of a location can be different for each entry, so it is useful to have this displayed in the output of llvm-readobj -stackmap. Below is an example of how the output would look:
Record ID: 2882400000, instruction offset: 16
3 locations:
#1: Constant 1, size: 8
#2: Constant 2, size: 8
#3: Constant 3, size: 8
0 live-outs: [ ]
Patch By: jacob.hughes@kcl.ac.uk (with heavy modification by me)
Differential Revision: https://reviews.llvm.org/D59169
llvm-svn: 358324
82 lines
2.9 KiB
C++
82 lines
2.9 KiB
C++
//===-------- StackMapPrinter.h - Pretty-print stackmaps --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_READOBJ_STACKMAPPRINTER_H
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#define LLVM_TOOLS_LLVM_READOBJ_STACKMAPPRINTER_H
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#include "llvm/Object/StackMapParser.h"
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#include "llvm/Support/ScopedPrinter.h"
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namespace llvm {
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// Pretty print a stackmap to the given ostream.
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template <typename StackMapParserT>
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void prettyPrintStackMap(ScopedPrinter &W, const StackMapParserT &SMP) {
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W.printNumber("LLVM StackMap Version", SMP.getVersion());
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W.printNumber("Num Functions", SMP.getNumFunctions());
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// Functions:
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for (const auto &F : SMP.functions())
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W.startLine() << " Function address: " << F.getFunctionAddress()
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<< ", stack size: " << F.getStackSize()
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<< ", callsite record count: " << F.getRecordCount() << "\n";
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// Constants:
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W.printNumber("Num Constants", SMP.getNumConstants());
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unsigned ConstantIndex = 0;
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for (const auto &C : SMP.constants())
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W.startLine() << " #" << ++ConstantIndex << ": " << C.getValue() << "\n";
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// Records:
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W.printNumber("Num Records", SMP.getNumRecords());
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for (const auto &R : SMP.records()) {
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W.startLine() << " Record ID: " << R.getID()
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<< ", instruction offset: " << R.getInstructionOffset()
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<< "\n";
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W.startLine() << " " << R.getNumLocations() << " locations:\n";
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unsigned LocationIndex = 0;
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for (const auto &Loc : R.locations()) {
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raw_ostream &OS = W.startLine();
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OS << " #" << ++LocationIndex << ": ";
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switch (Loc.getKind()) {
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case StackMapParserT::LocationKind::Register:
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OS << "Register R#" << Loc.getDwarfRegNum();
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break;
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case StackMapParserT::LocationKind::Direct:
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OS << "Direct R#" << Loc.getDwarfRegNum() << " + " << Loc.getOffset();
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break;
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case StackMapParserT::LocationKind::Indirect:
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OS << "Indirect [R#" << Loc.getDwarfRegNum() << " + " << Loc.getOffset()
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<< "]";
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break;
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case StackMapParserT::LocationKind::Constant:
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OS << "Constant " << Loc.getSmallConstant();
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break;
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case StackMapParserT::LocationKind::ConstantIndex:
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OS << "ConstantIndex #" << Loc.getConstantIndex() << " ("
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<< SMP.getConstant(Loc.getConstantIndex()).getValue() << ")";
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break;
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}
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OS << ", size: " << Loc.getSizeInBytes() << "\n";
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}
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raw_ostream &OS = W.startLine();
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OS << " " << R.getNumLiveOuts() << " live-outs: [ ";
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for (const auto &LO : R.liveouts())
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OS << "R#" << LO.getDwarfRegNum() << " ("
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<< LO.getSizeInBytes() << "-bytes) ";
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OS << "]\n";
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}
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}
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}
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#endif
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