PR for llvm/llvm-project#61388 #406
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…ersions of known extensions This Moves ELFObjectFile to using RISCVISAInfo::parseNormalizedArchString which does not ignore or produce an error for ISA extensions with a version that isn't recognised/supported by LLVM. As current GCC is marking its objects with a higher version of the A, F, and D extensions than LLVM (see [extension versioning discussion](https://discourse.llvm.org/t/rfc-resolving-issues-related-to-extension-versioning-in-risc-v/68472) this massively improves the usability of llvm-objdump with such binaries. This patch is functionally a cherry-pick of af602ed and 91c6174, though I've constructed the backport manually because other changes unrelated to this specific fix make a direct cherry pick difficult.
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This is the objdump equivalent of llvm/llvm-project#60889. I've done the cherry-pick manually as the additional testing for other RISCVISAInfo functions (and related fixes) make it difficult to directly cherry-pick. Without this fix, llvm-objdump is going to refuse to process RISC-V objects from a recent GCC (or from a newer LLVM once D147179 lands). This is a regression since LLVM 15, and the fix ends up being small and non-invasive. |
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Can someone please advise what to do about the failing "abi-compare" test? I can't see how this change could have triggered it, and also can't see how to view the build artifact. Thanks in advance. |
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resolves llvm/llvm-project#61388