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1# ADJCALLSTACKDOWN and ADJCALLSTACKUP must be generated around TLS pseudo code as scheduling fence (PR25839).
2# RUN: llc -mtriple=powerpc64le-linux-gnu -run-pass=ppc-tls-dynamic-call -verify-machineinstrs -o - %s | FileCheck %s
3
4--- |
5  target datalayout = "e-m:e-i64:64-n32:64"
6  target triple = "powerpc64le-unknown-linux-gnu"
7
8  @tls_var = external thread_local local_unnamed_addr global i32
9
10  define i32 @tls_func() local_unnamed_addr {
11  entry:
12    %0 = load i32, i32* @tls_var
13    ret i32 %0
14  }
15
16...
17---
18name:            tls_func
19alignment:       16
20exposesReturnsTwice: false
21legalized:       false
22regBankSelected: false
23selected:        false
24tracksRegLiveness: true
25registers:
26  - { id: 0, class: g8rc_and_g8rc_nox0, preferred-register: '' }
27  - { id: 1, class: g8rc_and_g8rc_nox0, preferred-register: '' }
28  - { id: 2, class: g8rc, preferred-register: '' }
29liveins:
30  - { reg: '$x2' }
31frameInfo:
32  isFrameAddressTaken: false
33  isReturnAddressTaken: false
34  hasStackMap:     false
35  hasPatchPoint:   false
36  stackSize:       0
37  offsetAdjustment: 0
38  maxAlignment:    0
39  adjustsStack:    false
40  hasCalls:        false
41  stackProtector:  ''
42  maxCallFrameSize: 4294967295
43  hasOpaqueSPAdjustment: false
44  hasVAStart:      false
45  hasMustTailInVarArgFunc: false
46  savePoint:       ''
47  restorePoint:    ''
48fixedStack:
49stack:
50constants:
51body:             |
52  bb.0.entry:
53    liveins: $x2
54    %0 = ADDIStlsgdHA $x2, @tls_var
55    %1 = ADDItlsgdLADDR killed %0, @tls_var, @tls_var, implicit-def dead $x0, implicit-def dead $x3, implicit-def dead $x4, implicit-def dead $x5, implicit-def dead $x6, implicit-def dead $x7, implicit-def dead $x8, implicit-def dead $x9, implicit-def dead $x10, implicit-def dead $x11, implicit-def dead $x12, implicit-def dead $lr8, implicit-def dead $ctr8, implicit-def dead $cr0, implicit-def dead $cr1, implicit-def dead $cr5, implicit-def dead $cr6, implicit-def dead $cr7
56    %2 = LWZ8 0, killed %1 :: (dereferenceable load 4 from @tls_var)
57    $x3 = COPY %2
58    BLR8 implicit $lr8, implicit $rm, implicit $x3
59    ; CHECK-LABEL: bb.0.entry
60    ; CHECK: %[[reg1:[0-9]+]]:g8rc_and_g8rc_nox0 = ADDIStlsgdHA $x2, @tls_var
61    ; CHECK: ADJCALLSTACKDOWN 0, 0
62    ; CHECK: $x3 = ADDItlsgdL %[[reg1]], @tls_var
63    ; CHECK: $x3 = GETtlsADDR $x3, @tls_var
64    ; CHECK: ADJCALLSTACKUP 0, 0
65    ; CHECK: BLR8
66...
67