llvm-project.git/llvm/lib/CodeGen/ReachingDefAnalysis.cpp, branch users/nico/python-2

[CodeGen] Use MCRegister and Register. NFC

2025-03-03T06:33:26+00:00

[ReachingDefAnalysis] Fix management of MBBFrameObjsReachingDefs (#124943)

2025-02-04T15:04:19+00:00

MBBFrameObjsReachingDefs was not being built correctly since we were not
inserting into a reference of Frame2InstrIdx. If there was multiple
stack slot defs in the same basic block, then the bug would occur. This
PR fixes this problem while simplifying the insertion logic.

Additionally, when lookup into MBBFrameObjsReachingDefs was occurring,
there was a chance that there was no entry in the map, in the case that
there was no reaching def. This was causing us to return a default
value, which may or may not have been correct. This patch returns the
correct value now.

[ReachingDefAnalysis] Fix LLVM_ENABLE_REVERSE_ITERATION bot after #118097

2025-02-03T06:20:41+00:00

[ReachingDefAnalysis] Use non-state Register::isPhysical. NFC

2025-01-30T07:19:55+00:00

[CodeGen] Add Register::stackSlotIndex(). Replace uses of Register::stackSlot2Index. NFC (#125028)

2025-01-30T07:02:07+00:00

Revert "[ReachingDefAnalysis][NFC] Use at instead of lookup for DenseMap access"

2025-01-29T16:21:59+00:00

This reverts commit 3ce97e4aa98ad6a3502528818ff11eee89ef2fae. Pushed to main
prematurley.

[ReachingDefAnalysis][NFC] Use at instead of lookup for DenseMap access

2025-01-29T16:15:56+00:00

`at` has an assert that the key exists. Since we are assuming the key exists,
use `at` instead of `lookup`.

[ReachingDefAnalysis] Extend the analysis to stack objects. (#118097)

2025-01-29T15:55:16+00:00

We track definitions of stack objects, the implementation is identical
to tracking of registers.

Also, added printing of all found reaching definitions for testing
purposes.

---------

Co-authored-by: Michael Maitland

[ReachingDefAnalysis][NFC] Replace MCRegister with Register (#123626)

2025-01-21T06:04:18+00:00

This is preparation for extending ReachingDefAnalysis to stack slots. We
should use `Register`, not `MCRegister` for something that can be a
physical register or a stack slot.

[ReachingDefAnalysis][NFC] Rename `PhysReg` to `Reg`. (#122112)

2025-01-08T15:00:41+00:00

This is in order to prepare for future MR where we will extend
`ReachingDefAnalysis` to stack slots.