[clang] [llvm] riscv: Support -mstack-protector-guard=tls (PR #108942)

[Keith Packard via llvm-commits]

================
@@ -0,0 +1,47 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=riscv64-unknown-elf -verify-machineinstrs < %s \
----------------
keith-packard wrote:

I kinda wondered -- the existing tests are all over the place with triples. I've switched to just 'riscv64'.

https://github.com/llvm/llvm-project/pull/108942