1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2--- |
3  ; RUN: llc --run-pass=prologepilog -o - %s | FileCheck %s
4
5  target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
6  target triple = "thumbv7-none-none-eabi"
7  define void @foo() #0 {
8  entry:
9    %v = alloca [4000 x i8], align 1
10    %s = alloca i8*, align 4
11    %0 = bitcast [4000 x i8]* %v to i8*
12    store i8* %0, i8** %s, align 4
13    %1 = load i8*, i8** %s, align 4
14    call void @bar(i8* %1)
15    ret void
16  }
17  declare void @bar(i8*) #1
18  ; Function Attrs: nounwind
19  declare void @llvm.stackprotector(i8*, i8**) #2
20
21  attributes #0 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+armv7-a,+d32,+dsp,+fp64,+fpregs,+neon,+strict-align,+thumb-mode,+vfp2,+vfp2sp,+vfp3,+vfp3d16,+vfp3d16sp,+vfp3sp" "unsafe-fp-math"="false" "use-soft-float"="false" }
22  attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+armv7-a,+d32,+dsp,+fp64,+fpregs,+neon,+strict-align,+thumb-mode,+vfp2,+vfp2sp,+vfp3,+vfp3d16,+vfp3d16sp,+vfp3sp" "unsafe-fp-math"="false" "use-soft-float"="false" }
23  attributes #2 = { nounwind }
24
25  !llvm.module.flags = !{!0, !1}
26  !llvm.ident = !{!2}
27
28  !0 = !{i32 1, !"wchar_size", i32 4}
29  !1 = !{i32 1, !"min_enum_size", i32 4}
30  !2 = !{!"clang version 10.0.0 (git@github.com:llvm/llvm-project.git ee219345881bdf2c144d40731f055e7b36bc8bce)"}
31
32...
33---
34name:            foo
35alignment:       2
36exposesReturnsTwice: false
37legalized:       false
38regBankSelected: false
39selected:        false
40failedISel:      false
41tracksRegLiveness: true
42hasWinCFI:       false
43registers:       []
44liveins:         []
45frameInfo:
46  isFrameAddressTaken: false
47  isReturnAddressTaken: false
48  hasStackMap:     false
49  hasPatchPoint:   false
50  stackSize:       0
51  offsetAdjustment: 0
52  maxAlignment:    4
53  adjustsStack:    true
54  hasCalls:        true
55  stackProtector:  ''
56  maxCallFrameSize: 0
57  cvBytesOfCalleeSavedRegisters: 0
58  hasOpaqueSPAdjustment: false
59  hasVAStart:      false
60  hasMustTailInVarArgFunc: false
61  localFrameSize:  4004
62  savePoint:       ''
63  restorePoint:    ''
64fixedStack:      []
65stack:
66  - { id: 0, name: v, type: default, offset: 0, size: 4000, alignment: 1,
67      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
68      local-offset: -4000, debug-info-variable: '', debug-info-expression: '',
69      debug-info-location: '' }
70  - { id: 1, name: s, type: default, offset: 0, size: 4, alignment: 4,
71      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
72      local-offset: -4004, debug-info-variable: '', debug-info-expression: '',
73      debug-info-location: '' }
74callSites:       []
75constants:       []
76machineFunctionInfo: {}
77body:             |
78  bb.0.entry:
79    ; CHECK-LABEL: name: foo
80    ; CHECK: liveins: $lr
81    ; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r7, killed $lr
82    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
83    ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
84    ; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
85    ; CHECK: $r7 = frame-setup tMOVr killed $sp, 14 /* CC::al */, $noreg
86    ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_register $r7
87    ; CHECK: $sp = frame-setup t2SUBspImm12 killed $sp, 4008, 14 /* CC::al */, $noreg
88    ; CHECK: renamable $r0 = t2ADDri $sp, 8, 14 /* CC::al */, $noreg, $noreg
89    ; CHECK: t2STRi12 killed renamable $r0, $sp, 4, 14 /* CC::al */, $noreg :: (store 4 into %ir.s)
90    ; CHECK: renamable $r0 = t2LDRi12 $sp, 4, 14 /* CC::al */, $noreg :: (dereferenceable load 4 from %ir.s)
91    ; CHECK: tBL 14 /* CC::al */, $noreg, @bar, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp
92    ; CHECK: $sp = frame-destroy t2ADDspImm12 killed $sp, 4008, 14 /* CC::al */, $noreg
93    ; CHECK: $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r7, def $pc
94    renamable $r0 = t2ADDri %stack.0.v, 0, 14, $noreg, $noreg
95    t2STRi12 killed renamable $r0, %stack.1.s, 0, 14, $noreg :: (store 4 into %ir.s)
96    renamable $r0 = t2LDRi12 %stack.1.s, 0, 14, $noreg :: (dereferenceable load 4 from %ir.s)
97    ADJCALLSTACKDOWN 0, 0, 14, $noreg, implicit-def dead $sp, implicit $sp
98    tBL 14, $noreg, @bar, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp
99    ADJCALLSTACKUP 0, 0, 14, $noreg, implicit-def dead $sp, implicit $sp
100    tBX_RET 14, $noreg
101
102...
103