From 6603a1bff0e25e1d9f7be08c65c7b584c7bb84d7 Mon Sep 17 00:00:00 2001 From: Dale Johannesen Date: Tue, 8 May 2007 01:01:04 +0000 Subject: [PATCH] Don't generate branch to entry block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36917 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/CodeGenPrepare.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp index cb7d1e8221e..9fa044e4c76 100644 --- a/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -280,7 +280,9 @@ static void SplitEdgeNicely(TerminatorInst *TI, unsigned SuccNum, Pass *P) { BranchInst *PredBr = dyn_cast(Pred->getTerminator()); if (!PredBr || !PredBr->isUnconditional() || // Must be empty other than the branch. - &Pred->front() != PredBr) + &Pred->front() != PredBr || + // Cannot be the entry block; its label does not get emitted. + Pred == &(Dest->getParent()->getEntryBlock())) continue; // Finally, since we know that Dest has phi nodes in it, we have to make -- 2.34.1