[all-commits] [llvm/llvm-project] 4d348f: [RISCV] Let -data-sections also work on sbss/sdata...

[KaiWeng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4d348f72d3ac4289821f944a99cdb4b6af21aa7b
      https://github.com/llvm/llvm-project/commit/4d348f72d3ac4289821f944a99cdb4b6af21aa7b
  Author: KaiWeng <kaiweng at andestech.com>
  Date:   2024-08-23 (Fri, 23 Aug 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVTargetObjectFile.cpp
    A llvm/test/CodeGen/RISCV/sdata-sections.ll

  Log Message:
  -----------
  [RISCV] Let -data-sections also work on sbss/sdata sections (#87040)

Add an unique suffix to .sbss/.sdata if -fdata-sections.
Without assigning an unique .sbss/.sdata section to each symbols, a
linker may not be able to remove unused part when gc-section since all
used and unused symbols are all mixed in the same .sbss/.sdata section.
I believe this also matches the behavior of gcc.



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