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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -run-pass=early-tailduplication -verify-machineinstrs -o - %s | FileCheck %s
# There are no phis in this testcase. Early tail duplication introduces them,
# so the NoPHIs property needs to be cleared to avoid verifier errors
---
name: tail_duplicate_nophis
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: tail_duplicate_nophis
; CHECK: bb.0:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 0
; CHECK-NEXT: S_BRANCH %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[DEF:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
; CHECK-NEXT: S_SLEEP 9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[PHI:%[0-9]+]]:sreg_32 = PHI [[DEF]], %bb.2, %1, %bb.3, [[S_MOV_B32_]], %bb.0
; CHECK-NEXT: S_NOP 0, implicit [[PHI]]
; CHECK-NEXT: S_SLEEP 1
; CHECK-NEXT: [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 0
; CHECK-NEXT: S_BRANCH %bb.3
bb.1:
bb.2:
%5:sreg_32 = S_MOV_B32 0
S_BRANCH %bb.4
bb.3:
S_SLEEP 9
bb.4:
S_NOP 0, implicit %5
S_SLEEP 1
S_BRANCH %bb.2
...
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