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Debug info intrinsic does not intefer during tail call optimization.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98778 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-03-17 23:52:37 +00:00
parent 6c8648b4c9
commit c3188ce0f1
1 changed files with 3 additions and 0 deletions

3
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;