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- Add cgo/libclang_config_llvm21.go as the new default LLVM config, pointing to llvm@21 paths. Make llvm20 config specific to the llvm20 build tag. - Update go-llvm dependency to latest, which includes LLVM 21 support. - Add transform.StripNoneParamAttrs to work around LLVM 21 removing the "none" parameter attribute. LLVM 21 no longer accepts "none" as a valid parameter attribute, but TinyGo's IR generation produces it implicitly on parameters that have no other attributes set. Strip these before each module verification pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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This change builds upon the PR to add Go 1.26 support and further adds support for LLVM 21.
cgo/libclang_config_llvm21.goas the new default LLVM config, pointing to llvm@21 paths. Make llvm20 config specific to thellvm20build tag.transform.StripNoneParamAttrsto work around LLVM 21 removing the "none" parameter attribute. LLVM 21 no longer accepts "none" as a valid parameter attribute, but TinyGo's IR generation produces it implicitly on parameters that have no other attributes set. Strip these before each module verification pass.