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Remove hack from r154987. The problem persists even with it, so it's not even a good hack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155813 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -420,15 +420,6 @@ bool LoopUnswitch::processCurrentLoop() {
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if (!BranchesInfo.countLoop(currentLoop))
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return false;
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// Loops with invokes, whose unwind edge escapes the loop, cannot be
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// unswitched because splitting their edges are non-trivial and don't preserve
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// loop simplify information.
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for (Loop::block_iterator I = currentLoop->block_begin(),
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E = currentLoop->block_end(); I != E; ++I)
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if (const InvokeInst *II = dyn_cast<InvokeInst>((*I)->getTerminator()))
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if (!currentLoop->contains(II->getUnwindDest()))
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return false;
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// Loop over all of the basic blocks in the loop. If we find an interior
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// block that is branching on a loop-invariant condition, we can unswitch this
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// loop.
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@ -633,11 +624,10 @@ bool LoopUnswitch::IsTrivialUnswitchCondition(Value *Cond, Constant **Val,
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/// LoopCond == Val to simplify the loop. If we decide that this is profitable,
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/// unswitch the loop, reprocess the pieces, then return true.
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bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val) {
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Function *F = loopHeader->getParent();
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Constant *CondVal = 0;
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BasicBlock *ExitBlock = 0;
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if (IsTrivialUnswitchCondition(LoopCond, &CondVal, &ExitBlock)) {
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// If the condition is trivial, always unswitch. There is no code growth
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// for this case.
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