commit 7976f6f03cddbab019caeb034ebd55ad4476bfeb
author Devang Patel <dpatel@apple.com> Wed Mar 17 23:52:37 2010 +0000
committer Devang Patel <dpatel@apple.com> Wed Mar 17 23:52:37 2010 +0000
tree 26ff636f6204b831ae9548bd51314202960759f4
parent 274a0d3794b98ce17947b8c06eb184bdce58742e

Debug info intrinsic does not intefer during tail call optimization.

llvm-svn: 98778

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 11293e4..07dc2384 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4282,6 +4282,9 @@
          --BBI) {
       if (&*BBI == I)
         break;
+      // Debug info intrinsic does not intefer during tail call optimization.
+      if (isa<DbgInfoIntrinsic>(BBI))
+        continue;
       if (BBI->mayHaveSideEffects() || BBI->mayReadFromMemory() ||
           !BBI->isSafeToSpeculativelyExecute())
         return false;