cd01e6526a
Implement LoongArch::scanSectionImpl, following the pattern established for x86, PPC64, SystemZ, AArch64. This merges the getRelExpr and TLS handling for SHF_ALLOC sections into the target-specific scanner, enabling devirtualization and eliminating abstraction overhead. - Inline relocation classification into scanSectionImpl with a switch on relocation type, replacing the generic rs.scan() path. - Use processR_PC/processR_PLT_PC for common PC-relative and PLT relocations. - Inline TLS handling: IE->LE optimization for _PC_ variants only (not _PCADD_ or absolute), TLSDESC->IE/LE for non-extreme code model, GD/LD flag setting without going through generic handleTlsRelocation. - Remove adjustTlsExpr by inlining its logic into scanSectionImpl. - Remove LoongArch-specific code from Relocations.cpp: handleTlsRelocation, execOptimizeInLoongArch, and the sort condition. - Simplify getRelExpr to only handle relocations needed by relocateNonAlloc, scanEhSection, and the extreme code model fallback in relocateAlloc.
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