diff options
| author | Dale Johannesen <dalej@apple.com> | 2007-05-24 18:31:55 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2007-05-24 18:31:55 +0000 |
| commit | 035fdeb37048bae2f49d3c3b8c246cfc26d9a80d (patch) | |
| tree | 4f1ef16611827e3fa2ec803be8c5db5b8e25c8c2 /lib/CodeGen/BranchFolding.cpp | |
| parent | de0963df420f408b2d813bd16f3c040c2d189f63 (diff) | |
Blocks that cond-br and uncond-br/fallthrough to same block should have
only one successor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37324 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BranchFolding.cpp')
| -rw-r--r-- | lib/CodeGen/BranchFolding.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp index 6c632c2aee..1fe2962a36 100644 --- a/lib/CodeGen/BranchFolding.cpp +++ b/lib/CodeGen/BranchFolding.cpp @@ -672,7 +672,10 @@ static bool CorrectExtraCFGEdges(MachineBasicBlock &MBB, MachineBasicBlock::pred_iterator SI = MBB.succ_begin(); while (SI != MBB.succ_end()) { - if (*SI == DestA) { + if (*SI == DestA && DestA == DestB) { + DestA = DestB = 0; + ++SI; + } else if (*SI == DestA) { DestA = 0; ++SI; } else if (*SI == DestB) { |