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Remove useless check.

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Patch by Matthijs Kooijman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2008-05-15 18:04:29 +00:00
parent bdb6ca178c
commit 8dbd9ada30
1 changed files with 2 additions and 6 deletions
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8
lib/Transforms/Scalar/TailDuplication.cpp
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@ -109,13 +109,9 @@ bool TailDup::shouldEliminateUnconditionalBranch(TerminatorInst *TI) {
if (!DTI->use_empty())
return false;
// Do not bother working on dead blocks...
pred_iterator PI = pred_begin(Dest), PE = pred_end(Dest);
if (PI == PE && Dest != Dest->getParent()->begin())
return false; // It's just a dead block, ignore it...
// Also, do not bother with blocks with only a single predecessor: simplify
// Do not bother with blocks with only a single predecessor: simplify
// CFG will fold these two blocks together!
pred_iterator PI = pred_begin(Dest), PE = pred_end(Dest);
++PI;
if (PI == PE) return false; // Exactly one predecessor!