riscv_zve32x_imply_zicsr

Extension: Implication from Zve32x to Zicsr

• Status: Merged for Binutils 2.42
• Branch: riscv-zve32x-imply-zicsr
• Tracking PR: #114 (view Pull Request and Diff)
• Mailing List:
  • PATCH v1 (2023-08-03)

Based On

• RISC-V: Fix CSR accessibility and implications
  This patch set was a part of it.

Issue Solved

Logically, Zve32x (minimum vector subset) should have implied Zicsr because of vector CSRs but we couldn't conclude at Septemper 2022.

This time, the author raised an issue to clarify the dependency and solved.

That means, implying Zicsr from Zve32x is now completely safe (although LLVM already implemented like this).