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Support: Stop stringifying DW_TAG_{lo,hi}_user

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`dwarf::TagString()` shouldn't stringify `DW_TAG_lo_user` or
`DW_TAG_hi_user`.  These aren't actual tags; they're markers for the
edge of vendor-specific tag regions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228029 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-03 21:08:33 +00:00
parent 4855886269
commit 17e8d42c63
3 changed files with 30 additions and 2 deletions
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2
lib/Support/Dwarf.cpp
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@ -76,8 +76,6 @@ const char *llvm::dwarf::TagString(unsigned Tag) {
case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
case DW_TAG_condition: return "DW_TAG_condition";
case DW_TAG_shared_type: return "DW_TAG_shared_type";
case DW_TAG_lo_user: return "DW_TAG_lo_user";
case DW_TAG_hi_user: return "DW_TAG_hi_user";
case DW_TAG_auto_variable: return "DW_TAG_auto_variable";
case DW_TAG_arg_variable: return "DW_TAG_arg_variable";
case DW_TAG_expression: return "DW_TAG_expression";

1
unittests/Support/CMakeLists.txt
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@ -13,6 +13,7 @@ add_llvm_unittest(SupportTests
CompressionTest.cpp
ConvertUTFTest.cpp
DataExtractorTest.cpp
DwarfTest.cpp
EndianTest.cpp
ErrorOrTest.cpp
FileOutputBufferTest.cpp

29
unittests/Support/DwarfTest.cpp Normal file
View File

@ -0,0 +1,29 @@
//===- unittest/Support/DwarfTest.cpp - Dwarf support tests ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Dwarf.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace llvm::dwarf;
namespace {
TEST(DwarfTest, TagStringOnInvalid) {
// This is invalid, so it shouldn't be stringified.
EXPECT_EQ(nullptr, TagString(DW_TAG_invalid));
// These aren't really tags: they describe ranges within tags. They
// shouldn't be stringified either.
EXPECT_EQ(nullptr, TagString(DW_TAG_lo_user));
EXPECT_EQ(nullptr, TagString(DW_TAG_hi_user));
EXPECT_EQ(nullptr, TagString(DW_TAG_user_base));
}
} // end namespace