Changes in directory llvm/lib/Transforms/Utils:
LCSSA.cpp updated: 1.28 -> 1.29 --- Log message: Fix PR977: http://llvm.org/PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll --- Diffs of the changes: (+8 -1) LCSSA.cpp | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletion(-) Index: llvm/lib/Transforms/Utils/LCSSA.cpp diff -u llvm/lib/Transforms/Utils/LCSSA.cpp:1.28 llvm/lib/Transforms/Utils/LCSSA.cpp:1.29 --- llvm/lib/Transforms/Utils/LCSSA.cpp:1.28 Sun Aug 27 17:42:52 2006 +++ llvm/lib/Transforms/Utils/LCSSA.cpp Tue Oct 31 11:52:18 2006 @@ -184,7 +184,14 @@ // Otherwise, patch up uses of the value with the appropriate LCSSA Phi, // inserting PHI nodes into join points where needed. - Value *Val = GetValueForBlock(DT->getNode(UserBB), Instr, Phis); + DominatorTree::Node *UserBBNode = DT->getNode(UserBB); + + // If the block has no dominator info, it is unreachable. + Value *Val; + if (UserBBNode) + Val = GetValueForBlock(UserBBNode, Instr, Phis); + else + Val = UndefValue::get(Instr->getType()); // Preincrement the iterator to avoid invalidating it when we change the // value. _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
