From 10d9d9f27c28721228ca2ea57ae3430c60df3356 Mon Sep 17 00:00:00 2001 From: Owen Anderson Date: Wed, 19 Jul 2006 05:48:45 +0000 Subject: [PATCH 1/1] Add an assertion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29199 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopUnroll.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp index 6f7df426f16..98b5b62e4b4 100644 --- a/lib/Transforms/Scalar/LoopUnroll.cpp +++ b/lib/Transforms/Scalar/LoopUnroll.cpp @@ -272,6 +272,8 @@ bool LoopUnroll::visitLoop(Loop *L) { // Remove LCSSA Phis from the exit block for (BasicBlock::iterator ExitInstr = LoopExit->begin(); PHINode* PN = dyn_cast(ExitInstr); ++ExitInstr) { + assert(PN->getNumIncomingValues() == 1 + && "Block should only have one pred, so Phi's must be LCSSA"); PN->replaceAllUsesWith(PN->getOperand(0)); PN->eraseFromParent(); } -- 2.34.1