[all-commits] [llvm/llvm-project] 80f6b4: [MachinePipeliner] Fix incorrect use of getPressur...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 80f6b42a26ec7594e6b016c5dde5d57db6c9dfb1
      https://github.com/llvm/llvm-project/commit/80f6b42a26ec7594e6b016c5dde5d57db6c9dfb1
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-09-18 (Wed, 18 Sep 2024)

  Changed paths:
    M llvm/lib/CodeGen/MachinePipeliner.cpp

  Log Message:
  -----------
  [MachinePipeliner] Fix incorrect use of getPressureSets. (#109179)

The code was passing a physical register directly to getPressureSets
which expects a register unit.

Fix this by looping over the register units and calling getPressureSets
for each of them.

Found while trying to add a RegisterUnit class to stop storing register
units in `Register`. 0 is a valid register unit but not a valid
Register.



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