From: Eric Christopher <echristo@apple.com>
Date: Tue, 15 Sep 2009 21:56:46 +0000 (+0000)
Subject: Expand on comment.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=ec26bf7d44def6fa9e989bcd69564f35b2273fad;p=oota-llvm.git

Expand on comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81928 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/DwarfEHPrepare.cpp b/lib/CodeGen/DwarfEHPrepare.cpp
index be6205e174a..8dc7e86fd21 100644
--- a/lib/CodeGen/DwarfEHPrepare.cpp
+++ b/lib/CodeGen/DwarfEHPrepare.cpp
@@ -107,7 +107,9 @@ FunctionPass *llvm::createDwarfEHPass(const TargetLowering *tli, bool fast) {
 
 /// NormalizeLandingPads - Normalize and discover landing pads, noting them
 /// in the LandingPads set.  A landing pad is normal if the only CFG edges
-/// that end at it are unwind edges from invoke instructions.
+/// that end at it are unwind edges from invoke instructions. If we inlined
+/// through an invoke we could have a normal branch from the previous
+/// unwind block through to the landing pad for the original invoke.
 /// Abnormal landing pads are fixed up by redirecting all unwind edges to
 /// a new basic block which falls through to the original.
 bool DwarfEHPrepare::NormalizeLandingPads() {
@@ -132,6 +134,7 @@ bool DwarfEHPrepare::NormalizeLandingPads() {
         break;
       }
     }
+    
     if (OnlyUnwoundTo) {
       // Only unwind edges lead to the landing pad.  Remember the landing pad.
       LandingPads.insert(LPad);