1# RUN: llc -o - %s -mtriple=amdgcn--amdhsa -verify-machineinstrs -run-pass=greedy,virtregrewriter | FileCheck %s
2---
3# We should not detect any interference between v0/v1 here and only allocate
4# sgpr0-sgpr3.
5#
6# CHECK-LABEL: func0
7# CHECK: S_NOP 0, implicit-def %sgpr0
8# CHECK: S_NOP 0, implicit-def %sgpr3
9# CHECK: S_NOP 0, implicit-def %sgpr1
10# CHECK: S_NOP 0, implicit-def %sgpr2
11# CHECK: S_NOP 0, implicit %sgpr0, implicit %sgpr3
12# CHECK: S_NOP 0, implicit %sgpr1, implicit %sgpr2
13name: func0
14body: |
15  bb.0:
16    S_NOP 0, implicit-def undef %0.sub0 : sreg_128
17    S_NOP 0, implicit-def %0.sub3
18    S_NOP 0, implicit-def undef %1.sub1 : sreg_128
19    S_NOP 0, implicit-def %1.sub2
20
21
22    S_NOP 0, implicit %0.sub0, implicit %0.sub3
23    S_NOP 0, implicit %1.sub1, implicit %1.sub2
24...
25