1# RUN: llc -o - %s -mtriple=amdgcn--amdhsa -verify-machineinstrs -run-pass=greedy,virtregrewriter | FileCheck %s
2--- |
3
4  define amdgpu_kernel void @func0() {
5    ret void
6  }
7
8...
9
10---
11# We should not detect any interference between v0/v1 here and only allocate
12# sgpr0-sgpr3.
13#
14# CHECK-LABEL: func0
15# CHECK: S_NOP 0, implicit-def renamable $sgpr0
16# CHECK: S_NOP 0, implicit-def renamable $sgpr3
17# CHECK: S_NOP 0, implicit-def renamable $sgpr1
18# CHECK: S_NOP 0, implicit-def renamable $sgpr2
19# CHECK: S_NOP 0, implicit renamable $sgpr0, implicit renamable $sgpr3
20# CHECK: S_NOP 0, implicit renamable $sgpr1, implicit renamable $sgpr2
21name: func0
22body: |
23  bb.0:
24    S_NOP 0, implicit-def undef %0.sub0 : sgpr_128
25    S_NOP 0, implicit-def %0.sub3
26    S_NOP 0, implicit-def undef %1.sub1 : sgpr_128
27    S_NOP 0, implicit-def %1.sub2
28
29
30    S_NOP 0, implicit %0.sub0, implicit %0.sub3
31    S_NOP 0, implicit %1.sub1, implicit %1.sub2
32...
33