[llvm][MC] Disable cfi-version test for Windows on Arm

[DavidSpickett]

Summary

Like Windows on x86-64, Windows on arm64 uses structured
exception handling, so we don't emit .debug_frame.

See:
https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling?view=msvc-160

[ostannard]

LGTM

llvm/test/MC/ELF/cfi-version.ll

 ; RUN: %llc_dwarf %s -o - -dwarf-version 2 -filetype=obj | llvm-dwarfdump -v - | FileCheck %s --check-prefix=DWARF2
 ; RUN: %llc_dwarf %s -o - -dwarf-version 3 -filetype=obj | llvm-dwarfdump -v - | FileCheck %s --check-prefix=DWARF3
 ; RUN: %llc_dwarf %s -o - -dwarf-version 4 -filetype=obj | llvm-dwarfdump -v - | FileCheck %s --check-prefix=DWARF4
 ; RUN: %llc_dwarf %s -o - -dwarf-version 5 -filetype=obj | llvm-dwarfdump -v - | FileCheck %s --check-prefix=DWARF4
 
 ; PR46647
 ; XFAIL: arm64-apple
 
-; .debug_frame is not emitted for targeting Windows x64.
+; .debug_frame is not emitted for targeting Windows x64 or arm64.
 ; REQUIRES: debug_frame
 ; REQUIRES: default_triple
 
 ; Function Attrs: nounwind
 define i32 @foo() #0 !dbg !4 {
 entry:
   %call = call i32 bitcast (i32 (...)* @bar to i32 ()*)(), !dbg !12
   %add = add nsw i32 %call, 1, !dbg !12

llvm/test/lit.cfg.py

if sysctl_cmd.wait():
         print(
           "Warning: sysctl exists but calling \"{}\" failed, defaulting to no fma3.".format(
           " ".join(cmd)))
     else:
         result = sysctl_cmd.stdout.read().decode('ascii')
         if 'hw.optional.fma: 1' in result:
             config.available_features.add('fma3')
 
-# .debug_frame is not emitted for targeting Windows x64.
-if not re.match(r'^x86_64.*-(windows-gnu|windows-msvc)', config.target_triple):
+# .debug_frame is not emitted for targeting Windows x64 or arm64.
+if not re.match(r'^(x86_64|arm64).*-(windows-gnu|windows-msvc)', config.target_triple):
     config.available_features.add('debug_frame')
 
 if config.have_libxar:
     config.available_features.add('xar')
 
 if config.enable_threads:
     config.available_features.add('thread_support')
 
 if config.have_libxml2:
     config.available_features.add('libxml2')
 
 if config.have_opt_viewer_modules:
     config.available_features.add('have_opt_viewer_modules')
 
 if config.expensive_checks:
     config.available_features.add('expensive_checks')