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| author | Nikita Popov <npopov@redhat.com> | 2024-07-11 09:13:37 +0200 |
|---|---|---|
| committer | Nikita Popov <npopov@redhat.com> | 2024-07-11 09:13:37 +0200 |
| commit | 6a907699d8b4fb35a843ab8fd84ca56ed93fc201 (patch) | |
| tree | 701af32d40c315b70f40dca3e07f1fe2ddc44818 /llvm/lib/CodeGen/PHIElimination.cpp | |
| parent | 7868033d2e846fa30c20455ca819fad29d9d795e (diff) | |
| download | llvm-6a907699d8b4fb35a843ab8fd84ca56ed93fc201.zip llvm-6a907699d8b4fb35a843ab8fd84ca56ed93fc201.tar.gz llvm-6a907699d8b4fb35a843ab8fd84ca56ed93fc201.tar.bz2 | |
Revert "[CodeGen] Remove `applySplitCriticalEdges` in `MachineDominatorTree` (#97055)"
This reverts commit c5e5088033fed170068d818c54af6862e449b545.
Causes large compile-time regressions.
Diffstat (limited to 'llvm/lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PHIElimination.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PHIElimination.cpp b/llvm/lib/CodeGen/PHIElimination.cpp index 2a2d7a4..e392bb8 100644 --- a/llvm/lib/CodeGen/PHIElimination.cpp +++ b/llvm/lib/CodeGen/PHIElimination.cpp @@ -222,6 +222,11 @@ bool PHIElimination::runOnMachineFunction(MachineFunction &MF) { MF.deleteMachineInstr(I.first); } + // TODO: we should use the incremental DomTree updater here. + if (Changed) + if (auto *MDT = getAnalysisIfAvailable<MachineDominatorTreeWrapperPass>()) + MDT->getDomTree().getBase().recalculate(MF); + LoweredPHIs.clear(); ImpDefs.clear(); VRegPHIUseCount.clear(); |