commit c2e9a50dfb523964bd9d7598ee27b37669f9a5b8
author Rafael Espindola <rafael.espindola@gmail.com> Thu Jun 09 20:55:41 2011 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Thu Jun 09 20:55:41 2011 +0000
tree b7bdd1625e5a7b794e9b9302916923decac88a00
parent ca5bec22e0e04d0712f5ac78fc6aeceabcf80955

A PHI in this basic block is a use in another basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132805 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/TailDuplication.cpp

diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index e6eb2e7..5fe3cb0 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -239,7 +239,7 @@
             MachineOperand &UseMO = UI.getOperand();
             MachineInstr *UseMI = &*UI;
             ++UI;
-            if (UseMI->getParent() == DefBB)
+            if (UseMI->getParent() == DefBB && !UseMI->isPHI())
               continue;
             SSAUpdate.RewriteUse(UseMO);
           }