llvm-project.git/llvm/lib/CodeGen/LazyMachineBlockFrequencyInfo.cpp, branch main Unnamed repository; edit this file 'description' to name the repository. Reapply "[DomTreeUpdater] Move critical edge splitting code to updater" (#119547) 2024-12-13T03:43:09+00:00 paperchalice liujunchang97@outlook.com 2024-12-13T03:43:09+00:00 1562b70eaf6e0b95910fa684dfc53bd5ca6252e7 This relands commit #115111. Use traditional way to update post dominator tree, i.e. break critical edge splitting into insert, insert, delete sequence. When splitting critical edges, the post dominator tree may change its root node, and `setNewRoot` only works in normal dominator tree... See https://github.com/llvm/llvm-project/blob/6c7e5827eda26990e872eb7c3f0d7866ee3c3171/llvm/include/llvm/Support/GenericDomTree.h#L684-L687 
This relands commit #115111.
Use traditional way to update post dominator tree, i.e. break critical
edge splitting into insert, insert, delete sequence.
When splitting critical edges, the post dominator tree may change its
root node, and `setNewRoot` only works in normal dominator tree...
See

https://github.com/llvm/llvm-project/blob/6c7e5827eda26990e872eb7c3f0d7866ee3c3171/llvm/include/llvm/Support/GenericDomTree.h#L684-L687
 Revert "[DomTreeUpdater] Move critical edge splitting code to updater" (#119512) 2024-12-11T06:25:17+00:00 paperchalice liujunchang97@outlook.com 2024-12-11T06:25:17+00:00 553058f825157b33a2d7f793c811f301260b765b Reverts llvm/llvm-project#115111 Causes #119511 
Reverts llvm/llvm-project#115111 Causes #119511
 [DomTreeUpdater] Move critical edge splitting code to updater (#115111) 2024-12-11T03:31:42+00:00 paperchalice liujunchang97@outlook.com 2024-12-11T03:31:42+00:00 79047fac65b95a5a98bde0de473da858e805576c Support critical edge splitting in dominator tree updater. Continue the work in #100856. Compile time check: https://llvm-compile-time-tracker.com/compare.php?from=87c35d782795b54911b3e3a91a5b738d4d870e55&to=42b3e5623a9ab4c3648564dc0926b36f3b438a3a&stat=instructions%3Au 
Support critical edge splitting in dominator tree updater. Continue the
work in #100856.

Compile time check:
https://llvm-compile-time-tracker.com/compare.php?from=87c35d782795b54911b3e3a91a5b738d4d870e55&to=42b3e5623a9ab4c3648564dc0926b36f3b438a3a&stat=instructions%3Au
 [CodeGen][NewPM] Port `machine-block-freq` to new pass manager (#98317) 2024-07-12T07:45:01+00:00 paperchalice liujunchang97@outlook.com 2024-07-12T07:45:01+00:00 099899961c1e89a1789f534579d35a74a2ef1dda - Add `MachineBlockFrequencyAnalysis`. - Add `MachineBlockFrequencyPrinterPass`. - Use `MachineBlockFrequencyInfoWrapperPass` in legacy pass manager. - `LazyMachineBlockFrequencyInfo::print` is empty, drop it due to new pass manager migration. 
- Add `MachineBlockFrequencyAnalysis`.
- Add `MachineBlockFrequencyPrinterPass`.
- Use `MachineBlockFrequencyInfoWrapperPass` in legacy pass manager.
- `LazyMachineBlockFrequencyInfo::print` is empty, drop it due to new
pass manager migration.
 Revert "[CodeGen] Remove `applySplitCriticalEdges` in `MachineDominatorTree` (#97055)" 2024-07-11T07:13:37+00:00 Nikita Popov npopov@redhat.com 2024-07-11T07:13:37+00:00 6a907699d8b4fb35a843ab8fd84ca56ed93fc201 This reverts commit c5e5088033fed170068d818c54af6862e449b545. Causes large compile-time regressions. 
This reverts commit c5e5088033fed170068d818c54af6862e449b545.

Causes large compile-time regressions.
[CodeGen] Remove `applySplitCriticalEdges` in `MachineDominatorTree` (#97055) 2024-07-11T03:08:05+00:00 paperchalice liujunchang97@outlook.com 2024-07-11T03:08:05+00:00 c5e5088033fed170068d818c54af6862e449b545 Summary: - Remove wrappers in `MachineDominatorTree`. - Remove `MachineDominatorTree` update code in `MachineBasicBlock::SplitCriticalEdge`. - Use `MachineDomTreeUpdater` in passes which call `MachineBasicBlock::SplitCriticalEdge` and preserve `MachineDominatorTreeWrapperPass` or CFG analyses. Commit abea99f65a97248974c02a5544eaf25fc4240056 introduced related methods in 2014. Now we have SemiNCA based dominator tree in 2017 and dominator tree updater, the solution adopted here seems a bit outdated. 
Summary:
- Remove wrappers in `MachineDominatorTree`.
- Remove `MachineDominatorTree` update code in
`MachineBasicBlock::SplitCriticalEdge`.
- Use `MachineDomTreeUpdater` in passes which call
`MachineBasicBlock::SplitCriticalEdge` and preserve
`MachineDominatorTreeWrapperPass` or CFG analyses.

Commit abea99f65a97248974c02a5544eaf25fc4240056 introduced related
methods in 2014. Now we have SemiNCA based dominator tree in 2017 and
dominator tree updater, the solution adopted here seems a bit outdated.
 [CodeGen][NewPM] Port `machine-loops` to new pass manager (#97793) 2024-07-09T01:11:18+00:00 paperchalice liujunchang97@outlook.com 2024-07-09T01:11:18+00:00 79d0de2ac37b6b7d66720611935d1dd7fc4fbd43 - Add `MachineLoopAnalysis`. - Add `MachineLoopPrinterPass`. - Convert to `MachineLoopInfoWrapperPass` in legacy pass manager. 
- Add `MachineLoopAnalysis`.
- Add `MachineLoopPrinterPass`.
- Convert to `MachineLoopInfoWrapperPass` in legacy pass manager.
 Reapply "[CodeGen][NewPM] Port machine-branch-prob to new pass manager" (#96858) (#96869) 2024-06-28T02:59:23+00:00 paperchalice liujunchang97@outlook.com 2024-06-28T02:59:23+00:00 d38b518e0444b42123ac05ac5cce267baecec294 This reverts commit ab58b6d58edf6a7c8881044fc716ca435d7a0156. In `CodeGen/Generic/MachineBranchProb.ll`, `llc` crashed with dumped MIR when targeting PowerPC. Move test to `llc/new-pm`, which is X86 specific. 
This reverts commit ab58b6d58edf6a7c8881044fc716ca435d7a0156.
In `CodeGen/Generic/MachineBranchProb.ll`, `llc` crashed with dumped MIR
when targeting PowerPC. Move test to `llc/new-pm`, which is X86
specific.
 Revert "[CodeGen][NewPM] Port machine-branch-prob to new pass manager" (#96858) 2024-06-27T07:00:17+00:00 paperchalice liujunchang97@outlook.com 2024-06-27T07:00:17+00:00 ab58b6d58edf6a7c8881044fc716ca435d7a0156 Reverts llvm/llvm-project#96389 Some ppc bots failed. 
Reverts llvm/llvm-project#96389
Some ppc bots failed.
 [CodeGen][NewPM] Port machine-branch-prob to new pass manager (#96389) 2024-06-27T06:04:51+00:00 paperchalice liujunchang97@outlook.com 2024-06-27T06:04:51+00:00 73e46c2bb4949be986d9eac98d95a206d7f003e2 Like IR version `print<branch-prob>`, there is also a `print<machine-branch-prob>`. 
Like IR version `print<branch-prob>`, there is also a
`print<machine-branch-prob>`.