[clang] [lld] [llvm] [WebAssembly] Implement branch hinting proposal (PR #146230)

[Sam Clegg via llvm-commits]

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@@ -5908,6 +5908,8 @@ def mharden_sls_EQ : Joined<["-"], "mharden-sls=">, Group<m_Group>,
 
 def matomics : Flag<["-"], "matomics">, Group<m_wasm_Features_Group>;
 def mno_atomics : Flag<["-"], "mno-atomics">, Group<m_wasm_Features_Group>;
+def mbranch_hinting : Flag<["-"], "mbranch-hinting">, Group<m_wasm_Features_Group>;
+def mno_branch_hinting : Flag<["-"], "mno-branch-hinting">, Group<m_wasm_Features_Group>;
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sbc100 wrote:

But engines that don't support branch hinting will just ignore the annotations..   so there are no engines that would fail to load the module at all.   So maybe we just always want to turn it on?   

https://github.com/llvm/llvm-project/pull/146230