59721f2326
The o32 ABI specifies: > Each relocation type of R_MIPS_HI16 must have an associated R_MIPS_LO16 entry immediately following it in the list of relocations. [...] the addend AHL is computed as (AHI << 16) + (short)ALO In practice, the high-part and low-part relocations may not be adjacent in assembly files, requiring the assembler to reorder relocations. http://reviews.llvm.org/D19718 performed the reordering, but did not optimize for the common case where a %lo immediately follows its matching %hi. The quadratic time complexity could make sections with many relocations very slow to process. This patch implements the fast path, simplifies the code, and makes the behavior more similar to GNU assembler (for the .rel.mips_hilo_8b test). We also remove `OriginalSymbol`, removing overhead for other targets. Fix #104562 Pull Request: https://github.com/llvm/llvm-project/pull/104723
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