[all-commits] [llvm/llvm-project] dce25b: [WebAssembly][GlobalISel] Implement `COPY` (#197256)

[Demetrius Kanios via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dce25be9ad415ec18b160db3379490cb2bd260e8
      https://github.com/llvm/llvm-project/commit/dce25be9ad415ec18b160db3379490cb2bd260e8
  Author: Demetrius Kanios <demetrius at kanios.net>
  Date:   2026-06-30 (Tue, 30 Jun 2026)

  Changed paths:
    M llvm/lib/Target/WebAssembly/GISel/WebAssemblyInstructionSelector.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyRegisterInfo.cpp
    A llvm/test/CodeGen/WebAssembly/GlobalISel/instructions/copy.mir

  Log Message:
  -----------
  [WebAssembly][GlobalISel] Implement `COPY` (#197256)

Adds instruction select handling and tests for `COPY`. While `COPY` gets
dissolved in the end, these changes are required to keep the selector
from crashing when trying to assign a regclass to its operands.

Split from #157161



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