diff options
| author | Dan Gohman <gohman@apple.com> | 2009-10-30 02:13:27 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-10-30 02:13:27 +0000 |
| commit | ab918103d284b91105831c6b198ad2ab760b907d (patch) | |
| tree | ac7f3b0bd7401226cf9d8d57f8dd3c6fcd62d795 /lib/CodeGen/BranchFolding.cpp | |
| parent | dfbbf6e0232315b79805f13baab06828de24e558 (diff) | |
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
Diffstat (limited to 'lib/CodeGen/BranchFolding.cpp')
| -rw-r--r-- | lib/CodeGen/BranchFolding.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp index 9746fb3ea2..455da1ad11 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; |