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| author | Manman Ren <manman.ren@gmail.com> | 2013-07-25 21:19:31 +0000 |
|---|---|---|
| committer | Manman Ren <manman.ren@gmail.com> | 2013-07-25 21:19:31 +0000 |
| commit | 3367ed322026a475273dc676896c0d03c1e8102f (patch) | |
| tree | ea10c55edcfdb80242fdbf55cbfe350b5eabc349 /lib | |
| parent | 1a9e24844fc8e9f147d0722c7384523e843bd5bb (diff) | |
| download | external_llvm-3367ed322026a475273dc676896c0d03c1e8102f.zip external_llvm-3367ed322026a475273dc676896c0d03c1e8102f.tar.gz external_llvm-3367ed322026a475273dc676896c0d03c1e8102f.tar.bz2 | |
Debug Info: update comments and add a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187157 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/IR/DebugInfo.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp index bbdff5e..7502316 100644 --- a/lib/IR/DebugInfo.cpp +++ b/lib/IR/DebugInfo.cpp @@ -406,9 +406,12 @@ bool DIObjCProperty::Verify() const { return DbgNode->getNumOperands() == 8; } -/// We allow an empty string to represent null. But we don't allow -/// a non-empty string in a MDNode field. +/// Check if a field at position Elt of a MDNode is a MDNode. +/// We currently allow an empty string and an integer. +/// But we don't allow a non-empty string in a MDNode field. static bool fieldIsMDNode(const MDNode *DbgNode, unsigned Elt) { + // FIXME: This function should return true, if the field is null or the field + // is indeed a MDNode: return !Fld || isa<MDNode>(Fld). Value *Fld = getField(DbgNode, Elt); if (Fld && isa<MDString>(Fld) && !cast<MDString>(Fld)->getString().empty()) |