[llvm] [NFC][AMDGPU][GISel] Precommit GlobalISel specific tests for call instruction (PR #165898)

[Chinmay Deshpande via llvm-commits]

================
@@ -0,0 +1,398 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -global-isel -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -o - %s | FileCheck -check-prefix=GFX9 %s
----------------
chinmaydd wrote:

@arsenm also, bfloat16 is currently not supported in GlobalISel. Adding run lines to existing test files such as [`call-args-inreg.ll`](https://github.com/llvm/llvm-project/blob/main/llvm/test/CodeGen/AMDGPU/call-args-inreg.ll) doesnt fit cleanly.

https://github.com/llvm/llvm-project/pull/165898