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| author | Devang Patel <dpatel@apple.com> | 2010-03-17 23:52:37 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-03-17 23:52:37 +0000 |
| commit | c3188ce0f1ff2d1b830702a93134905b9719f410 (patch) | |
| tree | d9d361db4dcb4e73f182748d6aacd6fa215e169d /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | 6c8648b4c9f3e02b625dd2d32e0315395da88e61 (diff) | |
Debug info intrinsic does not intefer during tail call optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98778 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 11293e47f6..07dc2384a9 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4282,6 +4282,9 @@ isInTailCallPosition(CallSite CS, Attributes CalleeRetAttr, --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; |