From ab918103d284b91105831c6b198ad2ab760b907d Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 30 Oct 2009 02:13:27 +0000 Subject: [PATCH] Don't delete blocks which have their address taken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85572 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/BranchFolding.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp index 9746fb3ea2e..455da1ad11b 100644 --- a/lib/CodeGen/BranchFolding.cpp +++ b/lib/CodeGen/BranchFolding.cpp @@ -881,8 +881,9 @@ bool BranchFolder::OptimizeBlock(MachineBasicBlock *MBB) { // If this block is empty, make everyone use its fall-through, not the block // explicitly. Landing pads should not do this since the landing-pad table - // points to this block. - if (MBB->empty() && !MBB->isLandingPad()) { + // points to this block. Blocks with their addresses taken shouldn't be + // optimized away. + if (MBB->empty() && !MBB->isLandingPad() && !MBB->hasAddressTaken()) { // Dead block? Leave for cleanup later. if (MBB->pred_empty()) return MadeChange;