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The fixme is irrelevant: if that happens, the LLVM bytecode is malformed.
This fixes testcase: SimplifyCFG/2003-08-17-BranchFold.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7919 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -61,12 +61,7 @@ bool ConstantFoldTerminator(BasicBlock *BB) {
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// unconditional branch.
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BI->setUnconditionalDest(Destination);
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return true;
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}
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#if 0
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// FIXME: TODO: This doesn't work if the destination has PHI nodes with
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// different incoming values on each branch!
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//
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else if (Dest2 == Dest1) { // Conditional branch to same location?
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} else if (Dest2 == Dest1) { // Conditional branch to same location?
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// This branch matches something like this:
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// br bool %cond, label %Dest, label %Dest
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// and changes it into: br label %Dest
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@ -79,7 +74,6 @@ 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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#endif
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}
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return false;
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}
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