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IR: Add MDLocation class

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Add a new subclass of `UniquableMDNode`, `MDLocation`.  This will be the
IR version of `DebugLoc` and `DILocation`.  The goal is to rename this
to `DILocation` once the IR classes supersede the `DI`-prefixed
wrappers.

This isn't used anywhere yet.  Part of PR21433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225824 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-01-13 20:44:56 +00:00
parent 9e495c518c
commit d640962656
7 changed files with 266 additions and 4 deletions
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37
unittests/IR/MetadataTest.cpp
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@ -387,6 +387,43 @@ TEST_F(MDNodeTest, replaceResolvedOperand) {
Temp->replaceAllUsesWith(nullptr);
}
typedef MetadataTest MDLocationTest;
TEST_F(MDLocationTest, Overflow) {
MDNode *N = MDNode::get(Context, None);
{
MDLocation *L = MDLocation::get(Context, 2, 7, N);
EXPECT_EQ(2u, L->getLine());
EXPECT_EQ(7u, L->getColumn());
}
unsigned U24 = 1u << 24;
unsigned U8 = 1u << 8;
{
MDLocation *L = MDLocation::get(Context, U24 - 1, U8 - 1, N);
EXPECT_EQ(U24 - 1, L->getLine());
EXPECT_EQ(U8 - 1, L->getColumn());
}
{
MDLocation *L = MDLocation::get(Context, U24, U8, N);
EXPECT_EQ(0u, L->getLine());
EXPECT_EQ(0u, L->getColumn());
}
{
MDLocation *L = MDLocation::get(Context, U24 + 1, U8 + 1, N);
EXPECT_EQ(0u, L->getLine());
EXPECT_EQ(0u, L->getColumn());
}
}
TEST_F(MDLocationTest, getDistinct) {
MDNode *N = MDNode::get(Context, None);
MDLocation *L0 = MDLocation::getDistinct(Context, 2, 7, N);
EXPECT_TRUE(L0->isDistinct());
MDLocation *L1 = MDLocation::get(Context, 2, 7, N);
EXPECT_FALSE(L1->isDistinct());
EXPECT_EQ(L1, MDLocation::get(Context, 2, 7, N));
}
typedef MetadataTest MetadataAsValueTest;
TEST_F(MetadataAsValueTest, MDNode) {