7fee2b89fd
* Add support for uniquing strings in the remark streamer and emitting the string table in the remarks section.
* Add parsing support for the string table in the RemarkParser.
From this remark:
```
--- !Missed
Pass: inline
Name: NoDefinition
DebugLoc: { File: 'test-suite/SingleSource/UnitTests/2002-04-17-PrintfChar.c',
Line: 7, Column: 3 }
Function: printArgsNoRet
Args:
- Callee: printf
- String: ' will not be inlined into '
- Caller: printArgsNoRet
DebugLoc: { File: 'test-suite/SingleSource/UnitTests/2002-04-17-PrintfChar.c',
Line: 6, Column: 0 }
- String: ' because its definition is unavailable'
...
```
to:
```
--- !Missed
Pass: 0
Name: 1
DebugLoc: { File: 3, Line: 7, Column: 3 }
Function: 2
Args:
- Callee: 4
- String: 5
- Caller: 2
DebugLoc: { File: 3, Line: 6, Column: 0 }
- String: 6
...
```
And the string table in the .remarks/__remarks section containing:
```
inline\0NoDefinition\0printArgsNoRet\0
test-suite/SingleSource/UnitTests/2002-04-17-PrintfChar.c\0printf\0
will not be inlined into \0 because its definition is unavailable\0
```
This is mostly supposed to be used for testing purposes, but it gives us
a 2x reduction in the remark size, and is an incremental change for the
updates to the remarks file format.
Differential Revision: https://reviews.llvm.org/D60227
llvm-svn: 359050
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//===- llvm/IR/RemarkStreamer.cpp - Remark Streamer -*- 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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//
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// This file contains the implementation of the remark outputting as part of
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// LLVMContext.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/RemarkStreamer.h"
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using namespace llvm;
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RemarkStreamer::RemarkStreamer(StringRef Filename, raw_ostream &OS)
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: Filename(Filename), OS(OS),
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YAMLOutput(OS, reinterpret_cast<void *>(this)), StrTab() {
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assert(!Filename.empty() && "This needs to be a real filename.");
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}
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Error RemarkStreamer::setFilter(StringRef Filter) {
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Regex R = Regex(Filter);
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std::string RegexError;
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if (!R.isValid(RegexError))
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return createStringError(std::make_error_code(std::errc::invalid_argument),
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RegexError.data());
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PassFilter = std::move(R);
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return Error::success();
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}
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void RemarkStreamer::emit(const DiagnosticInfoOptimizationBase &Diag) {
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if (Optional<Regex> &Filter = PassFilter)
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if (!Filter->match(Diag.getPassName()))
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return;
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DiagnosticInfoOptimizationBase *DiagPtr =
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const_cast<DiagnosticInfoOptimizationBase *>(&Diag);
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YAMLOutput << DiagPtr;
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}
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