From: Duncan P. N. Exon Smith <dexonsmith@apple.com>
Date: Mon, 9 Feb 2015 21:26:34 +0000 (+0000)
Subject: IR: Document horrible abuse of loose DIDescriptor, NFC
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=edbd61d9994190f46b9d29773650dcc13b6b29a0;p=oota-llvm.git

IR: Document horrible abuse of loose DIDescriptor, NFC

I'll circle back and fix this somehow; for now I just don't want to
forget about it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228608 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/IR/DebugInfo.h b/include/llvm/IR/DebugInfo.h
index fd8ed81865a..d2a5fb27199 100644
--- a/include/llvm/IR/DebugInfo.h
+++ b/include/llvm/IR/DebugInfo.h
@@ -691,6 +691,8 @@ class DILexicalBlockFile : public DIScope {
 public:
   explicit DILexicalBlockFile(const MDNode *N = nullptr) : DIScope(N) {}
   DIScope getContext() const {
+    // FIXME: This logic is horrible.  getScope() returns a DILexicalBlock, but
+    // then we check if it's a subprogram?  WHAT?!?
     if (getScope().isSubprogram())
       return getScope();
     return getScope().getContext();