[AMDGPU][NFC] Add back -new-reg-bank-select flag. (#159181)

Author: sstipano

llvm/test/CodeGen/AMDGPU/workgroup-id-in-arch-sgprs.ll

@@ -1,8 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=+architected-sgprs -global-isel=0 < %s | FileCheck -check-prefixes=GFX9,GFX9-SDAG %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=+architected-sgprs -global-isel=1 < %s | FileCheck -check-prefixes=GFX9,GFX9-GISEL %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=+architected-sgprs -global-isel=1 -new-reg-bank-select < %s | FileCheck -check-prefixes=GFX9,GFX9-GISEL %s
 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -global-isel=0 < %s | FileCheck -check-prefixes=GFX1200 %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -global-isel=1 < %s | FileCheck -check-prefixes=GFX1200 %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -global-isel=1 -new-reg-bank-select < %s | FileCheck -check-prefixes=GFX1200 %s
 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -global-isel=0 < %s | FileCheck -check-prefixes=GFX1250,GFX1250-SDAG %s
 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -global-isel=1 < %s | FileCheck -check-prefixes=GFX1250,GFX1250-GISEL %s