[all-commits] [llvm/llvm-project] a8e113: [WebAssembly] Add -wasm-use-legacy-eh option (#122...

[Heejin Ahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a8e1135baa9074f7c088c8e1999561f88699b56e
      https://github.com/llvm/llvm-project/commit/a8e1135baa9074f7c088c8e1999561f88699b56e
  Author: Heejin Ahn <aheejin at gmail.com>
  Date:   2025-01-09 (Thu, 09 Jan 2025)

  Changed paths:
    M llvm/docs/ReleaseNotes.md
    M llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp
    M llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
    M llvm/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyLateEHPrepare.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
    M llvm/test/CodeGen/WebAssembly/cfg-stackify-eh-legacy.ll
    M llvm/test/CodeGen/WebAssembly/cfg-stackify-eh-legacy.mir
    M llvm/test/CodeGen/WebAssembly/cfg-stackify-eh.ll
    M llvm/test/CodeGen/WebAssembly/eh-option-errors.ll
    M llvm/test/CodeGen/WebAssembly/exception-legacy.ll
    M llvm/test/CodeGen/WebAssembly/exception-legacy.mir
    M llvm/test/CodeGen/WebAssembly/exception.ll

  Log Message:
  -----------
  [WebAssembly] Add -wasm-use-legacy-eh option (#122158)

This replaces the existing `-wasm-enable-exnref` with
`-wasm-use-legacy-eh` option, in an effort to make the new standardized
exnref proposal the 'default' state and the legacy proposal needs to be
separately enabled an option. But given that most users haven't switched
to the new proposal and major web browsers haven't turned it on by
default, this `-wasm-use-legacy-eh` is turned on by default, so nothing
will change for now for the functionality perspective.

This also removes the restriction that `-wasm-enable-exnref` be only
used with `-wasm-enable-eh` because this option is enabled by default.
This option does not have any effect when `-wasm-enable-eh` is not used.



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