[all-commits] [llvm/llvm-project] 1e7763: [LoongArch] Add support for getNumberOfRegisters()...

[wanglei via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e7763557bbace002b6bb811167942ebebf50f99
      https://github.com/llvm/llvm-project/commit/1e7763557bbace002b6bb811167942ebebf50f99
  Author: wanglei <wanglei at loongson.cn>
  Date:   2024-04-12 (Fri, 12 Apr 2024)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.cpp
    M llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.h
    A llvm/test/Transforms/LoopVectorize/LoongArch/reg-usage.ll

  Log Message:
  -----------
  [LoongArch] Add support for getNumberOfRegisters() (#88372)

The `TTI` hooks are used during vectorization for calculating register
pressure. The default implementation defined wrong value for register
number (all register class are 8 registers).

This patch also defines LoongArch's own register classes.



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