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Fix bug: SimplifyCFG/2003-08-17-BranchFoldOrdering.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7921 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -74,6 +74,12 @@ bool ConstantFoldTerminator(BasicBlock *BB) {
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BI->setUnconditionalDest(Dest1);
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return true;
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}
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} else if (SwitchInst *SI = dyn_cast<SwitchInst>(TI)) {
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if (ConstantInt *CI = dyn_cast<ConstantInt>(SI->getCondition())) {
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}
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}
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return false;
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}
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@ -121,6 +121,10 @@ bool SimplifyCFG(BasicBlock *BB) {
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return true;
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}
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// Check to see if we can constant propagate this terminator instruction
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// away...
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bool Changed = ConstantFoldTerminator(BB);
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// Check to see if this block has no non-phi instructions and only a single
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// successor. If so, replace references to this basic block with references
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// to the successor.
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@ -251,5 +255,5 @@ bool SimplifyCFG(BasicBlock *BB) {
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}
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}
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return false;
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return Changed;
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}
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