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0b5a016873
TimePassesHandler object (implementation of time-passes for new pass manager) gains ability to report into a stream customizable per-instance (per pipeline). Intended use is to specify separate time-passes output stream per each compilation, setting up TimePasses member of StandardInstrumentation during PassBuilder setup. That allows to get independent non-overlapping pass-times reports for parallel independent compilations (in JIT-like setups). By default it still puts timing reports into the info-output-file stream (created by CreateInfoOutputFile every time report is requested). Unit-test added for non-default case, and it also allowed to discover that print() does not work as declared - it did not reset the timers, leading to yet another report being printed into the default stream. Fixed print() to actually reset timers according to what was declared in print's comments before. Reviewed By: philip.pfaffe Differential Revision: https://reviews.llvm.org/D59366 llvm-svn: 356305
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
//===- StandardInstrumentations.h ------------------------------*- 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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/// \file
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///
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/// This header defines a class that provides bookkeeping for all standard
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/// (i.e in-tree) pass instrumentations.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PASSES_STANDARDINSTRUMENTATIONS_H
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#define LLVM_PASSES_STANDARDINSTRUMENTATIONS_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/IR/PassInstrumentation.h"
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#include "llvm/IR/PassTimingInfo.h"
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#include <string>
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#include <utility>
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namespace llvm {
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class Module;
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/// Instrumentation to print IR before/after passes.
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///
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/// Needs state to be able to print module after pass that invalidates IR unit
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/// (typically Loop or SCC).
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class PrintIRInstrumentation {
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public:
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PrintIRInstrumentation() = default;
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~PrintIRInstrumentation();
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void registerCallbacks(PassInstrumentationCallbacks &PIC);
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private:
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bool printBeforePass(StringRef PassID, Any IR);
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void printAfterPass(StringRef PassID, Any IR);
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void printAfterPassInvalidated(StringRef PassID);
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using PrintModuleDesc = std::tuple<const Module *, std::string, StringRef>;
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void pushModuleDesc(StringRef PassID, Any IR);
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PrintModuleDesc popModuleDesc(StringRef PassID);
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/// Stack of Module description, enough to print the module after a given
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/// pass.
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SmallVector<PrintModuleDesc, 2> ModuleDescStack;
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bool StoreModuleDesc = false;
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};
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/// This class provides an interface to register all the standard pass
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/// instrumentations and manages their state (if any).
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class StandardInstrumentations {
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PrintIRInstrumentation PrintIR;
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TimePassesHandler TimePasses;
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public:
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StandardInstrumentations() = default;
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void registerCallbacks(PassInstrumentationCallbacks &PIC);
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TimePassesHandler &getTimePasses() { return TimePasses; }
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};
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} // namespace llvm
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#endif
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