[all-commits] [llvm/llvm-project] f7d088: [RISCV] Implement validateGlobalRegisterVariable. ...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f7d088b6168608682975759bf27b7c2ad0ae7117
      https://github.com/llvm/llvm-project/commit/f7d088b6168608682975759bf27b7c2ad0ae7117
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-09-23 (Mon, 23 Sep 2024)

  Changed paths:
    M clang/lib/Basic/Targets/RISCV.cpp
    M clang/lib/Basic/Targets/RISCV.h
    M clang/test/Sema/riscv-asm.c

  Log Message:
  -----------
  [RISCV] Implement validateGlobalRegisterVariable. (#109596)

Only allow GPR registers and verify the size is the same as XLen.

This fixes the crash seen in #109588 by making it a frontend error.

gcc does accept the code so we may need to consider if we can fix the
backend. Some other targets I tried appear to have similar issues so it
might not be straightforward to fix.



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