[clang] [llvm] [AArch64] Mark aarch64_set_fpmr as IntrWriteMem (PR #146353)

[Paul Walker via llvm-commits]

================
@@ -330,3 +330,6 @@ mfloat8x8_t test_vcvt_mf8_f16_fpm(float16x4_t vn, float16x4_t vm, fpm_t fpm) {
 mfloat8x16_t test_vcvtq_mf8_f16_fpm(float16x8_t vn, float16x8_t vm, fpm_t fpm) {
   return vcvtq_mf8_f16_fpm(vn, vm, fpm);
 }
+
+// CHECK: declare void @llvm.aarch64.set.fpmr(i64)  [[ATTR1:#.*]]
+// CHECK: attributes [[ATTR1]] = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write) }
----------------
paulwalker-arm wrote:

The test changes look manual? Which is going to make it awkward in the future.  Perhaps add a dedicated test file for this specific purpose?

https://github.com/llvm/llvm-project/pull/146353