fix test

Author: arsenm

llvm/test/CodeGen/AMDGPU/si-fold-aligned-vgprs.mir

@@ -342,7 +342,7 @@ body:             |
   bb.0.entry:
     liveins: $vgpr0, $sgpr8_sgpr9
 
-    ; GFX908-LABEL: name: aligned_vgpr_regression
+    ; GFX908-LABEL: name: aligned_vgpr_vs_64_constraint
     ; GFX908: liveins: $vgpr0, $sgpr8_sgpr9
     ; GFX908-NEXT: {{  $}}
     ; GFX908-NEXT: [[COPY:%[0-9]+]]:sgpr_64 = COPY $sgpr8_sgpr9
@@ -355,7 +355,7 @@ body:             |
     ; GFX908-NEXT: DS_WRITE_B64_gfx9 [[V_MOV_B32_e32_]], killed [[V_PK_ADD_F32_]], 0, 0, implicit $exec :: (store (s64), addrspace 3)
     ; GFX908-NEXT: S_ENDPGM 0
     ;
-    ; GFX90A-LABEL: name: aligned_vgpr_regression
+    ; GFX90A-LABEL: name: aligned_vgpr_vs_64_constraint
     ; GFX90A: liveins: $vgpr0, $sgpr8_sgpr9
     ; GFX90A-NEXT: {{  $}}
     ; GFX90A-NEXT: [[COPY:%[0-9]+]]:sgpr_64 = COPY $sgpr8_sgpr9