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IR: Add MDCompileUnit::replace*()

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Add `MDCompileUnit::replaceGlobalVariables()` and
`MDCompileUnit::replaceSubprograms()`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229743 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-18 20:36:09 +00:00
parent a9d82a512f
commit 70ee038129
2 changed files with 42 additions and 0 deletions
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10
include/llvm/IR/DebugInfoMetadata.h
View File

@ -850,6 +850,16 @@ public:
return getOperandAs<MDString>(3);
}
/// \brief Replace arrays.
///
/// If this \a isUniqued() and not \a isResolved(), it will be RAUW'ed and
/// deleted on a uniquing collision. In practice, uniquing collisions on \a
/// MDCompileUnit should be fairly rare.
/// @{
void replaceSubprograms(MDTuple *N) { replaceOperandWith(6, N); }
void replaceGlobalVariables(MDTuple *N) { replaceOperandWith(7, N); }
/// @}
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDCompileUnitKind;
}

32
unittests/IR/MetadataTest.cpp
View File

@ -1043,6 +1043,38 @@ TEST_F(MDCompileUnitTest, get) {
EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
}
TEST_F(MDCompileUnitTest, replaceArrays) {
unsigned SourceLanguage = 1;
Metadata *File = MDTuple::getDistinct(Context, None);
StringRef Producer = "some producer";
bool IsOptimized = false;
StringRef Flags = "flag after flag";
unsigned RuntimeVersion = 2;
StringRef SplitDebugFilename = "another/file";
unsigned EmissionKind = 3;
Metadata *EnumTypes = MDTuple::getDistinct(Context, None);
Metadata *RetainedTypes = MDTuple::getDistinct(Context, None);
Metadata *ImportedEntities = MDTuple::getDistinct(Context, None);
auto *N = MDCompileUnit::get(
Context, SourceLanguage, File, Producer, IsOptimized, Flags,
RuntimeVersion, SplitDebugFilename, EmissionKind, EnumTypes,
RetainedTypes, nullptr, nullptr, ImportedEntities);
auto *Subprograms = MDTuple::getDistinct(Context, None);
EXPECT_EQ(nullptr, N->getSubprograms());
N->replaceSubprograms(Subprograms);
EXPECT_EQ(Subprograms, N->getSubprograms());
N->replaceSubprograms(nullptr);
EXPECT_EQ(nullptr, N->getSubprograms());
auto *GlobalVariables = MDTuple::getDistinct(Context, None);
EXPECT_EQ(nullptr, N->getGlobalVariables());
N->replaceGlobalVariables(GlobalVariables);
EXPECT_EQ(GlobalVariables, N->getGlobalVariables());
N->replaceGlobalVariables(nullptr);
EXPECT_EQ(nullptr, N->getGlobalVariables());
}
typedef MetadataTest MDSubprogramTest;
TEST_F(MDSubprogramTest, get) {