|
| 1 | +# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| 2 | +# RUN: llc -mtriple=aarch64 -run-pass=cfi-fixup %s -o - | FileCheck %s |
| 3 | +--- | |
| 4 | + define i32 @f0(i32 %x) #0 { |
| 5 | + entry: br label %return |
| 6 | + if.end: br label %return |
| 7 | + if.then2: br label %return |
| 8 | + if.else: br label %return |
| 9 | + return: |
| 10 | + ret i32 0 |
| 11 | + } |
| 12 | + |
| 13 | + declare i32 @g(i32) |
| 14 | + |
| 15 | + attributes #0 = { nounwind shadowcallstack uwtable "sign-return-address"="non-leaf" "target-features"="+reserve-x18" } |
| 16 | + |
| 17 | +... |
| 18 | +--- |
| 19 | +name: f0 |
| 20 | +alignment: 4 |
| 21 | +exposesReturnsTwice: false |
| 22 | +legalized: false |
| 23 | +regBankSelected: false |
| 24 | +selected: false |
| 25 | +failedISel: false |
| 26 | +tracksRegLiveness: true |
| 27 | +hasWinCFI: false |
| 28 | +failsVerification: false |
| 29 | +registers: [] |
| 30 | +liveins: |
| 31 | + - { reg: '$w0', virtual-reg: '' } |
| 32 | +frameInfo: |
| 33 | + isFrameAddressTaken: false |
| 34 | + isReturnAddressTaken: false |
| 35 | + hasStackMap: false |
| 36 | + hasPatchPoint: false |
| 37 | + stackSize: 16 |
| 38 | + offsetAdjustment: 0 |
| 39 | + maxAlignment: 16 |
| 40 | + adjustsStack: true |
| 41 | + hasCalls: true |
| 42 | + stackProtector: '' |
| 43 | + maxCallFrameSize: 0 |
| 44 | + cvBytesOfCalleeSavedRegisters: 0 |
| 45 | + hasOpaqueSPAdjustment: false |
| 46 | + hasVAStart: false |
| 47 | + hasMustTailInVarArgFunc: false |
| 48 | + hasTailCall: false |
| 49 | + localFrameSize: 0 |
| 50 | + savePoint: '' |
| 51 | + restorePoint: '' |
| 52 | +fixedStack: [] |
| 53 | +stack: |
| 54 | + - { id: 0, name: '', type: spill-slot, offset: -16, size: 8, alignment: 16, |
| 55 | + stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true, |
| 56 | + debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| 57 | +callSites: [] |
| 58 | +debugValueSubstitutions: [] |
| 59 | +constants: [] |
| 60 | +machineFunctionInfo: |
| 61 | + hasRedZone: false |
| 62 | +body: | |
| 63 | + ; CHECK-LABEL: name: f0 |
| 64 | + ; CHECK: bb.0.entry: |
| 65 | + ; CHECK-NEXT: successors: %bb.4(0x30000000), %bb.1(0x50000000) |
| 66 | + ; CHECK-NEXT: liveins: $w0, $lr, $x18 |
| 67 | + ; CHECK-NEXT: {{ $}} |
| 68 | + ; CHECK-NEXT: CBZW renamable $w0, %bb.4 |
| 69 | + ; CHECK-NEXT: {{ $}} |
| 70 | + ; CHECK-NEXT: bb.1.if.end: |
| 71 | + ; CHECK-NEXT: successors: %bb.3(0x30000000), %bb.2(0x50000000) |
| 72 | + ; CHECK-NEXT: liveins: $w0, $lr, $x18 |
| 73 | + ; CHECK-NEXT: {{ $}} |
| 74 | + ; CHECK-NEXT: early-clobber $x18 = frame-setup STRXpost $lr, $x18, 8 |
| 75 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION escape 0x16, 0x12, 0x02, 0x82, 0x78 |
| 76 | + ; CHECK-NEXT: frame-setup PACIASP implicit-def $lr, implicit killed $lr, implicit $sp |
| 77 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION negate_ra_sign_state |
| 78 | + ; CHECK-NEXT: early-clobber $sp = frame-setup STRXpre killed $lr, $sp, -16 :: (store (s64) into %stack.0) |
| 79 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16 |
| 80 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w30, -16 |
| 81 | + ; CHECK-NEXT: CFI_INSTRUCTION remember_state |
| 82 | + ; CHECK-NEXT: TBNZW renamable $w0, 31, %bb.3 |
| 83 | + ; CHECK-NEXT: {{ $}} |
| 84 | + ; CHECK-NEXT: bb.2.if.else: |
| 85 | + ; CHECK-NEXT: successors: %bb.5(0x80000000) |
| 86 | + ; CHECK-NEXT: liveins: $w0 |
| 87 | + ; CHECK-NEXT: {{ $}} |
| 88 | + ; CHECK-NEXT: renamable $w0 = nuw nsw ADDWri killed renamable $w0, 1, 0 |
| 89 | + ; CHECK-NEXT: BL @g, csr_aarch64_aapcs_scs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0 |
| 90 | + ; CHECK-NEXT: renamable $w8 = MOVZWi 1, 0 |
| 91 | + ; CHECK-NEXT: $w0 = SUBWrs killed renamable $w8, killed renamable $w0, 0 |
| 92 | + ; CHECK-NEXT: B %bb.5 |
| 93 | + ; CHECK-NEXT: {{ $}} |
| 94 | + ; CHECK-NEXT: bb.3.if.then2 (bbsections 1): |
| 95 | + ; CHECK-NEXT: successors: %bb.5(0x80000000) |
| 96 | + ; CHECK-NEXT: liveins: $w0 |
| 97 | + ; CHECK-NEXT: {{ $}} |
| 98 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION escape 0x16, 0x12, 0x02, 0x82, 0x78 |
| 99 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION negate_ra_sign_state |
| 100 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16 |
| 101 | + ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w30, -16 |
| 102 | + ; CHECK-NEXT: renamable $w0 = nsw SUBWri killed renamable $w0, 1, 0 |
| 103 | + ; CHECK-NEXT: BL @g, csr_aarch64_aapcs_scs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0 |
| 104 | + ; CHECK-NEXT: renamable $w0 = nsw ADDWri killed renamable $w0, 1, 0 |
| 105 | + ; CHECK-NEXT: B %bb.5 |
| 106 | + ; CHECK-NEXT: {{ $}} |
| 107 | + ; CHECK-NEXT: bb.4.return: |
| 108 | + ; CHECK-NEXT: liveins: $w0 |
| 109 | + ; CHECK-NEXT: {{ $}} |
| 110 | + ; CHECK-NEXT: RET undef $lr, implicit killed $w0 |
| 111 | + ; CHECK-NEXT: {{ $}} |
| 112 | + ; CHECK-NEXT: bb.5.return: |
| 113 | + ; CHECK-NEXT: successors: %bb.7(0x80000000) |
| 114 | + ; CHECK-NEXT: liveins: $w0 |
| 115 | + ; CHECK-NEXT: {{ $}} |
| 116 | + ; CHECK-NEXT: CFI_INSTRUCTION restore_state |
| 117 | + ; CHECK-NEXT: CFI_INSTRUCTION remember_state |
| 118 | + ; CHECK-NEXT: B %bb.7 |
| 119 | + ; CHECK-NEXT: {{ $}} |
| 120 | + ; CHECK-NEXT: bb.6.return: |
| 121 | + ; CHECK-NEXT: liveins: $w0 |
| 122 | + ; CHECK-NEXT: {{ $}} |
| 123 | + ; CHECK-NEXT: early-clobber $sp, $lr = frame-destroy LDRXpost $sp, 16 :: (load (s64) from %stack.0) |
| 124 | + ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0 |
| 125 | + ; CHECK-NEXT: frame-destroy AUTIASP implicit-def $lr, implicit killed $lr, implicit $sp |
| 126 | + ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION negate_ra_sign_state |
| 127 | + ; CHECK-NEXT: early-clobber $x18, $lr = frame-destroy LDRXpre $x18, -8 |
| 128 | + ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w18 |
| 129 | + ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30 |
| 130 | + ; CHECK-NEXT: RET undef $lr, implicit killed $w0 |
| 131 | + ; CHECK-NEXT: {{ $}} |
| 132 | + ; CHECK-NEXT: bb.7.return: |
| 133 | + ; CHECK-NEXT: successors: %bb.6(0x80000000) |
| 134 | + ; CHECK-NEXT: liveins: $w0 |
| 135 | + ; CHECK-NEXT: {{ $}} |
| 136 | + ; CHECK-NEXT: CFI_INSTRUCTION restore_state |
| 137 | + ; CHECK-NEXT: B %bb.6 |
| 138 | + bb.0.entry: |
| 139 | + successors: %bb.4(0x30000000), %bb.1(0x50000000) |
| 140 | + liveins: $w0, $lr, $x18 |
| 141 | +
|
| 142 | + CBZW renamable $w0, %bb.4 |
| 143 | +
|
| 144 | + bb.1.if.end: |
| 145 | + successors: %bb.3(0x30000000), %bb.2(0x50000000) |
| 146 | + liveins: $w0, $lr, $x18 |
| 147 | +
|
| 148 | + early-clobber $x18 = frame-setup STRXpost $lr, $x18, 8 |
| 149 | + frame-setup CFI_INSTRUCTION escape 0x16, 0x12, 0x02, 0x82, 0x78 |
| 150 | + frame-setup PACIASP implicit-def $lr, implicit killed $lr, implicit $sp |
| 151 | + frame-setup CFI_INSTRUCTION negate_ra_sign_state |
| 152 | + early-clobber $sp = frame-setup STRXpre killed $lr, $sp, -16 :: (store (s64) into %stack.0) |
| 153 | + frame-setup CFI_INSTRUCTION def_cfa_offset 16 |
| 154 | + frame-setup CFI_INSTRUCTION offset $w30, -16 |
| 155 | + TBNZW renamable $w0, 31, %bb.3 |
| 156 | +
|
| 157 | + bb.2.if.else: |
| 158 | + successors: %bb.5(0x80000000) |
| 159 | + liveins: $w0 |
| 160 | +
|
| 161 | + renamable $w0 = nuw nsw ADDWri killed renamable $w0, 1, 0 |
| 162 | + BL @g, csr_aarch64_aapcs_scs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0 |
| 163 | + renamable $w8 = MOVZWi 1, 0 |
| 164 | + $w0 = SUBWrs killed renamable $w8, killed renamable $w0, 0 |
| 165 | + B %bb.5 |
| 166 | +
|
| 167 | + bb.3.if.then2 (bbsections 1): |
| 168 | + successors: %bb.5(0x80000000) |
| 169 | + liveins: $w0 |
| 170 | +
|
| 171 | + renamable $w0 = nsw SUBWri killed renamable $w0, 1, 0 |
| 172 | + BL @g, csr_aarch64_aapcs_scs, implicit-def dead $lr, implicit $sp, implicit killed $w0, implicit-def $sp, implicit-def $w0 |
| 173 | + renamable $w0 = nsw ADDWri killed renamable $w0, 1, 0 |
| 174 | + B %bb.5 |
| 175 | +
|
| 176 | + bb.4.return: |
| 177 | + liveins: $w0 |
| 178 | + RET undef $lr, implicit killed $w0 |
| 179 | +
|
| 180 | + bb.5.return: |
| 181 | + liveins: $w0 |
| 182 | + B %bb.6 |
| 183 | +
|
| 184 | + bb.7.return: |
| 185 | + liveins: $w0 |
| 186 | + early-clobber $sp, $lr = frame-destroy LDRXpost $sp, 16 :: (load (s64) from %stack.0) |
| 187 | + frame-destroy CFI_INSTRUCTION def_cfa_offset 0 |
| 188 | + frame-destroy AUTIASP implicit-def $lr, implicit killed $lr, implicit $sp |
| 189 | + frame-destroy CFI_INSTRUCTION negate_ra_sign_state |
| 190 | + early-clobber $x18, $lr = frame-destroy LDRXpre $x18, -8 |
| 191 | + frame-destroy CFI_INSTRUCTION restore $w18 |
| 192 | + frame-destroy CFI_INSTRUCTION restore $w30 |
| 193 | + RET undef $lr, implicit killed $w0 |
| 194 | +
|
| 195 | + bb.6.return: |
| 196 | + liveins: $w0 |
| 197 | + B %bb.7 |
| 198 | +
|
| 199 | +
|
| 200 | +... |
0 commit comments