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[ThinLTO] Support cloning of temporary DILocation metadata

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This is needed to support linking of module-level metadata as a
postpass after function importing, where we will be leaving temporary
metadata on imported instructions until the postpass metadata import.

Also added unittest. Split from D14838.

llvm-svn: 254914
This commit is contained in:
Teresa Johnson 2015-12-07 15:05:44 +00:00
parent 80454cacaf
commit 4789ea589d
2 changed files with 12 additions and 2 deletions
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6
include/llvm/IR/DebugInfoMetadata.h
View File

@ -1118,8 +1118,10 @@ class DILocation : public MDNode {
}
TempDILocation cloneImpl() const {
return getTemporary(getContext(), getLine(), getColumn(), getScope(),
getInlinedAt());
// Get the raw scope/inlinedAt since it is possible to invoke this on
// a DILocation containing temporary metadata.
return getTemporary(getContext(), getLine(), getColumn(), getRawScope(),
getRawInlinedAt());
}
// Disallow replacing operands.

8
unittests/IR/MetadataTest.cpp
View File

@ -813,6 +813,14 @@ TEST_F(DILocationTest, getTemporary) {
EXPECT_FALSE(L->isResolved());
}
TEST_F(DILocationTest, cloneTemporary) {
MDNode *N = MDNode::get(Context, None);
auto L = DILocation::getTemporary(Context, 2, 7, N);
EXPECT_TRUE(L->isTemporary());
auto L2 = L->clone();
EXPECT_TRUE(L2->isTemporary());
}
typedef MetadataTest GenericDINodeTest;
TEST_F(GenericDINodeTest, get) {