[clang] [llvm] [RISCV] Support resumable non-maskable interrupt handlers (PR #148134)

[Gergely Futo via cfe-commits]

================
@@ -0,0 +1,9 @@
+; RUN: not llc -mtriple riscv32-unknown-elf -mattr=-smrnmi -o - %s 2>&1 \
+; RUN:   | FileCheck %s
+; RUN: not llc -mtriple riscv64-unknown-elf -mattr=-smrnmi -o - %s 2>&1 \
+; RUN:   | FileCheck %s
+
+; CHECK: LLVM ERROR: Handling of resumable non-maskable interrupts handling requires Smrnmi extension
----------------
futog wrote:

```suggestion
; CHECK: LLVM ERROR: 'rnmi' interrupt kind requires Srnmi extension
```

https://github.com/llvm/llvm-project/pull/148134