Precommit test

Author: MacDue

llvm/test/CodeGen/AArch64/sme-zt0-state.ll

@@ -386,3 +386,46 @@ define void @shared_za_new_zt0(ptr %callee) "aarch64_inout_za" "aarch64_new_zt0"
   call void %callee() "aarch64_inout_za" "aarch64_in_zt0";
   ret void;
 }
+
+
+define void @zt0_multiple_private_za_calls(ptr %callee) "aarch64_in_zt0" nounwind {
+; CHECK-COMMON-LABEL: zt0_multiple_private_za_calls:
+; CHECK-COMMON:       // %bb.0:
+; CHECK-COMMON-NEXT:    sub sp, sp, #288
+; CHECK-COMMON-NEXT:    stp x20, x19, [sp, #272] // 16-byte Folded Spill
+; CHECK-COMMON-NEXT:    add x20, sp, #192
+; CHECK-COMMON-NEXT:    mov x19, x0
+; CHECK-COMMON-NEXT:    stp x29, x30, [sp, #256] // 16-byte Folded Spill
+; CHECK-COMMON-NEXT:    str zt0, [x20]
+; CHECK-COMMON-NEXT:    smstop za
+; CHECK-COMMON-NEXT:    blr x0
+; CHECK-COMMON-NEXT:    smstart za
+; CHECK-COMMON-NEXT:    ldr zt0, [x20]
+; CHECK-COMMON-NEXT:    add x20, sp, #128
+; CHECK-COMMON-NEXT:    str zt0, [x20]
+; CHECK-COMMON-NEXT:    smstop za
+; CHECK-COMMON-NEXT:    blr x19
+; CHECK-COMMON-NEXT:    smstart za
+; CHECK-COMMON-NEXT:    ldr zt0, [x20]
+; CHECK-COMMON-NEXT:    add x20, sp, #64
+; CHECK-COMMON-NEXT:    str zt0, [x20]
+; CHECK-COMMON-NEXT:    smstop za
+; CHECK-COMMON-NEXT:    blr x19
+; CHECK-COMMON-NEXT:    smstart za
+; CHECK-COMMON-NEXT:    ldr zt0, [x20]
+; CHECK-COMMON-NEXT:    mov x20, sp
+; CHECK-COMMON-NEXT:    str zt0, [x20]
+; CHECK-COMMON-NEXT:    smstop za
+; CHECK-COMMON-NEXT:    blr x19
+; CHECK-COMMON-NEXT:    smstart za
+; CHECK-COMMON-NEXT:    ldr zt0, [x20]
+; CHECK-COMMON-NEXT:    ldp x20, x19, [sp, #272] // 16-byte Folded Reload
+; CHECK-COMMON-NEXT:    ldp x29, x30, [sp, #256] // 16-byte Folded Reload
+; CHECK-COMMON-NEXT:    add sp, sp, #288
+; CHECK-COMMON-NEXT:    ret
+  call void %callee()
+  call void %callee()
+  call void %callee()
+  call void %callee()
+  ret void
+}