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The fixme is irrelevant: if that happens, the LLVM bytecode is malformed.

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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
This commit is contained in:
Chris Lattner 2003-08-17 19:34:55 +00:00
parent 128cf79bcc
commit 342a9d1464
1 changed files with 1 additions and 7 deletions
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8
lib/Transforms/Utils/Local.cpp
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@ -61,12 +61,7 @@ bool ConstantFoldTerminator(BasicBlock *BB) {
// unconditional branch.
BI->setUnconditionalDest(Destination);
return true;
}
#if 0
// FIXME: TODO: This doesn't work if the destination has PHI nodes with
// different incoming values on each branch!
//
else if (Dest2 == Dest1) { // Conditional branch to same location?
} else if (Dest2 == Dest1) { // Conditional branch to same location?
// This branch matches something like this:
// br bool %cond, label %Dest, label %Dest
// and changes it into: br label %Dest
@ -79,7 +74,6 @@ bool ConstantFoldTerminator(BasicBlock *BB) {
BI->setUnconditionalDest(Dest1);
return true;
}
#endif
}
return false;
}