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| 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 | 1409b6a59b0875263b7c2c95808ceaee04fed519 (patch) | |
| tree | 024b3f7264ec1e05652d0e9a7f49d38122b708e4 /llvm/lib/CodeGen/BranchFolding.cpp | |
| parent | 1af8c870c74f4a2bf49dfbec220a9e0040f87825 (diff) | |
| download | bcm5719-llvm-1409b6a59b0875263b7c2c95808ceaee04fed519.tar.gz bcm5719-llvm-1409b6a59b0875263b7c2c95808ceaee04fed519.zip | |
Blocks that cond-br and uncond-br/fallthrough to same block should have
only one successor.
llvm-svn: 37324
Diffstat (limited to 'llvm/lib/CodeGen/BranchFolding.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/BranchFolding.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp index 6c632c2aee3..1fe2962a365 100644 --- a/llvm/lib/CodeGen/BranchFolding.cpp +++ b/llvm/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) { |
