llvm-project.git/llvm/lib/CodeGen/UnreachableBlockElim.cpp, branch main

[CodeGen] Extract copy-paste on PHI MachineInstr income removal. (#158634)

2025-09-25T05:59:36+00:00

[llvm] Use range constructors of *Set (NFC) (#137552)

2025-04-27T22:59:57+00:00

[CodeGen][NPM] Port UnreachableMachineBlockElim to NPM (#136127)

2025-04-18T09:36:30+00:00

[aarch64][win] Update Called Globals info when updating Call Site info (#122762)

2025-01-13T22:00:31+00:00

Fixes the "use after poison" issue introduced by #121516 (see
).

The root cause of this issue is that #121516 introduced "Called Global"
information for call instructions modeling how "Call Site" info is
stored in the machine function, HOWEVER it didn't copy the
copy/move/erase operations for call site information.

The fix is to rename and update the existing copy/move/erase functions
so they also take care of Called Global info.

[CodeGen] Use optimized domtree for MachineFunction (#102107)

2024-08-06T11:46:19+00:00

The dominator tree gained an optimization to use block numbers instead
of a DenseMap to store blocks. Given that machine basic blocks already
have numbers, expose these via appropriate GraphTraits. For debugging,
block number epochs are added to MachineFunction -- this greatly helps
in finding uses of block numbers after RenumberBlocks().

In a few cases where dominator trees are preserved across renumberings,
the dominator tree is updated to use the new numbers.

[CodeGen][NewPM] Port `machine-loops` to new pass manager (#97793)

2024-07-09T01:11:18+00:00

- Add `MachineLoopAnalysis`.
- Add `MachineLoopPrinterPass`.
- Convert to `MachineLoopInfoWrapperPass` in legacy pass manager.

[CodeGen][NewPM] Split `MachineDominatorTree` into a concrete analysis result (#94571)

2024-06-11T13:27:14+00:00

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree version of `DomTreeUpdater` to
handle `SplitCriticalEdge` in some CodeGen passes.

[llvm] Use MachineBasicBlock::succ_empty (NFC)

2024-01-22T08:13:25+00:00

[CodeGen] One more use of MachineBasicBlock::phis. NFC.

2023-05-02T13:55:24+00:00

[CodeGen] Make use of MachineBasicBlock::phis. NFC.

2023-05-02T12:39:01+00:00