commit dca54eab53fe5d6d203adaa5ea3004586fc3c093
author Ahmed Bougacha <ahmed.bougacha@gmail.com> Wed Aug 21 07:27:50 2013 +0000
committer Ahmed Bougacha <ahmed.bougacha@gmail.com> Wed Aug 21 07:27:50 2013 +0000
tree 95ef6c707166c1a5f31a7db4cbd684ab5be56724
parent 3ec498faad21e4e6aac5af2b5a3f8e244bd6d874

MC CFG: Don't insert preds/succs again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188874 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/MCFunction.cpp

diff --git a/lib/MC/MCFunction.cpp b/lib/MC/MCFunction.cpp
index 2665d3e..473d07b 100644
--- a/lib/MC/MCFunction.cpp
+++ b/lib/MC/MCFunction.cpp
@@ -37,7 +37,8 @@
 {}
 
 void MCBasicBlock::addSuccessor(const MCBasicBlock *MCBB) {
-  Successors.push_back(MCBB);
+  if (!isSuccessor(MCBB))
+    Successors.push_back(MCBB);
 }
 
 bool MCBasicBlock::isSuccessor(const MCBasicBlock *MCBB) const {
@@ -46,7 +47,8 @@
 }
 
 void MCBasicBlock::addPredecessor(const MCBasicBlock *MCBB) {
-  Predecessors.push_back(MCBB);
+  if (!isPredecessor(MCBB))
+    Predecessors.push_back(MCBB);
 }
 
 bool MCBasicBlock::isPredecessor(const MCBasicBlock *MCBB) const {