1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -run-pass=early-tailduplication -verify-machineinstrs -o - %s | FileCheck %s
3
4 # There are no phis in this testcase. Early tail duplication introduces them,
5 # so the NoPHIs property needs to be cleared to avoid verifier errors
6
7---
8name:           tail_duplicate_nophis
9tracksRegLiveness: true
10body:             |
11  ; CHECK-LABEL: name: tail_duplicate_nophis
12  ; CHECK: bb.0:
13  ; CHECK:   successors: %bb.3(0x80000000)
14  ; CHECK:   [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 0
15  ; CHECK:   S_BRANCH %bb.3
16  ; CHECK: bb.2:
17  ; CHECK:   successors: %bb.3(0x80000000)
18  ; CHECK:   [[DEF:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
19  ; CHECK:   S_SLEEP 9
20  ; CHECK: bb.3:
21  ; CHECK:   successors: %bb.3(0x80000000)
22  ; CHECK:   [[PHI:%[0-9]+]]:sreg_32 = PHI [[DEF]], %bb.2, %1, %bb.3, [[S_MOV_B32_]], %bb.0
23  ; CHECK:   S_NOP 0, implicit [[PHI]]
24  ; CHECK:   S_SLEEP 1
25  ; CHECK:   [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 0
26  ; CHECK:   S_BRANCH %bb.3
27  bb.1:
28
29  bb.2:
30    %5:sreg_32 = S_MOV_B32 0
31    S_BRANCH %bb.4
32
33  bb.3:
34    S_SLEEP 9
35
36  bb.4:
37    S_NOP 0, implicit %5
38    S_SLEEP 1
39    S_BRANCH %bb.2
40
41...
42