26aa8d6eb8
asm_riscv64.h will be used to define macros for each riscv64 extension that is not part of the rva20u64 base profile but that the _riscv64.s assembly files are allowed to use because the user has specified a more capable profile in the GORISCV64 variable. This will allow us, for example, to test for the hasZba macro in those assembly files instead of the GORISCV64_rva22u64 macro before using a Zba instruction. This is important as it means that in the future when we add support for new profiles that support Zba, e.g., rva23u64, we only need to update asm_riscv64.h to indicate rva23u64 supports Zba. We will not need to update every assembly language file that already uses Zba instructions. Updates #61476 Change-Id: I83abfeb20d08a87ac8ea88f4d8a93437f0631353 Reviewed-on: https://go-review.googlesource.com/c/go/+/608255 Auto-Submit: Tim King <taking@google.com> Reviewed-by: Tim King <taking@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com> Reviewed-by: Joel Sing <joel@sing.id.au> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
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The Go Programming Language
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