diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LCSSA.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LCSSA.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/LCSSA.cpp b/llvm/lib/Transforms/Utils/LCSSA.cpp index ef2f5042169..b4b2e148dfb 100644 --- a/llvm/lib/Transforms/Utils/LCSSA.cpp +++ b/llvm/lib/Transforms/Utils/LCSSA.cpp @@ -66,6 +66,13 @@ static bool processInstruction(Loop &L, Instruction &Inst, DominatorTree &DT, PredIteratorCache &PredCache, LoopInfo *LI) { SmallVector<Use *, 16> UsesToRewrite; + // Tokens cannot be used in PHI nodes, so we skip over them. + // We can run into tokens which are live out of a loop with catchswitch + // instructions in Windows EH if the catchswitch has one catchpad which + // is inside the loop and another which is not. + if (Inst.getType()->isTokenTy()) + return false; + BasicBlock *InstBB = Inst.getParent(); for (Use &U : Inst.uses()) { |
