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83f4e4b65a
* 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
40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
//===- unittest/Support/RemarksStrTabParsingTest.cpp - StrTab tests -------===//
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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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#include "llvm/Remarks/Remark.h"
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#include "llvm/Remarks/RemarkParser.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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TEST(RemarksStrTab, ParsingEmpty) {
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StringRef Empty("", 0);
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remarks::ParsedStringTable StrTab(Empty);
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Expected<StringRef> Nothing = StrTab[0];
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EXPECT_FALSE(static_cast<bool>(Nothing));
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EXPECT_EQ(toString(Nothing.takeError()),
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"String with index 0 is out of bounds (size = 0).");
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}
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TEST(RemarksStrTab, ParsingGood) {
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StringRef Strings("str1\0str2\0str3\0str4", 20);
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remarks::ParsedStringTable StrTab(Strings);
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Expected<StringRef> Result = StrTab[0];
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EXPECT_TRUE(static_cast<bool>(Result));
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EXPECT_EQ(*Result, "str1");
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Result = StrTab[1];
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EXPECT_TRUE(static_cast<bool>(Result));
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EXPECT_EQ(*Result, "str2");
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Result = StrTab[2];
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EXPECT_TRUE(static_cast<bool>(Result));
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EXPECT_EQ(*Result, "str3");
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Result = StrTab[3];
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EXPECT_TRUE(static_cast<bool>(Result));
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EXPECT_EQ(*Result, "str4");
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}
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