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Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989

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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2008-04-25 16:53:59 +00:00
parent 419ace9bda
commit 280a6e607d
28 changed files with 61 additions and 338 deletions
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lib/Transforms/Scalar/InstructionCombining.cpp
+2 -6
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@@ -11180,15 +11180,12 @@ static void AddReachableCodeToWorklist(BasicBlock *BB,
// Recursively visit successors. If this is a branch or switch on a
// constant, only visit the reachable successor.
if (BB->getUnwindDest())
Worklist.push_back(BB->getUnwindDest());
TerminatorInst *TI = BB->getTerminator();
if (BranchInst *BI = dyn_cast<BranchInst>(TI)) {
if (BI->isConditional() && isa<ConstantInt>(BI->getCondition())) {
bool CondVal = cast<ConstantInt>(BI->getCondition())->getZExtValue();
BasicBlock *ReachableBB = BI->getSuccessor(!CondVal);
if (ReachableBB != BB->getUnwindDest())
Worklist.push_back(ReachableBB);
Worklist.push_back(ReachableBB);
continue;
}
} else if (SwitchInst *SI = dyn_cast<SwitchInst>(TI)) {
@@ -11197,8 +11194,7 @@ static void AddReachableCodeToWorklist(BasicBlock *BB,
for (unsigned i = 1, e = SI->getNumSuccessors(); i != e; ++i)
if (SI->getCaseValue(i) == Cond) {
BasicBlock *ReachableBB = SI->getSuccessor(i);
if (ReachableBB != BB->getUnwindDest())
Worklist.push_back(ReachableBB);
Worklist.push_back(ReachableBB);
continue;
}