From 64f30e3eedc08a9387baef2d2e24d62d85b53f26 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Sat, 1 Sep 2012 12:04:51 +0000 Subject: LoopRotation: Check some invariants of the dominator updating code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163058 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopRotation.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'lib/Transforms/Scalar') diff --git a/lib/Transforms/Scalar/LoopRotation.cpp b/lib/Transforms/Scalar/LoopRotation.cpp index 2c76706..f8122bf 100644 --- a/lib/Transforms/Scalar/LoopRotation.cpp +++ b/lib/Transforms/Scalar/LoopRotation.cpp @@ -418,6 +418,9 @@ bool LoopRotate::rotateLoop(Loop *L) { for (unsigned I = 0, E = HeaderChildren.size(); I != E; ++I) DT->changeImmediateDominator(HeaderChildren[I], OrigPreheaderNode); + assert(DT->getNode(Exit)->getIDom() == OrigPreheaderNode); + assert(DT->getNode(NewHeader)->getIDom() == OrigPreheaderNode); + // Update OrigHeader to be dominated by the new header block. DT->changeImmediateDominator(OrigHeader, OrigLatch); } -- cgit v1.1