96 lines
No EOL
3.6 KiB
YAML
96 lines
No EOL
3.6 KiB
YAML
# RUN: llc --run-pass=arm-branch-targets %s -o - | FileCheck %s
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--- |
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv8.1m.main-arm-unknown-eabi"
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define hidden i32 @_Z1fi(i32 %x) {
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entry:
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%add = add nsw i32 %x, 1
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%call = tail call i32 @_Z1gi(i32 %add)
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%sub = add nsw i32 %call, -1
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ret i32 %sub
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}
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declare dso_local i32 @_Z1gi(i32)
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!llvm.module.flags = !{!0, !1, !2}
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!0 = !{i32 8, !"branch-target-enforcement", i32 1}
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!1 = !{i32 8, !"sign-return-address", i32 1}
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!2 = !{i32 8, !"sign-return-address-all", i32 0}
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...
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---
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name: _Z1fi
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alignment: 4
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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failedISel: false
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tracksRegLiveness: true
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hasWinCFI: false
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registers: []
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liveins:
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- { reg: '$r0', virtual-reg: '' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 16
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offsetAdjustment: 0
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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stackProtector: ''
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maxCallFrameSize: 0
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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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localFrameSize: 0
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savePoint: ''
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restorePoint: ''
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fixedStack: []
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stack:
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- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 2, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$r12', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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callSites: []
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debugValueSubstitutions: []
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constants: []
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machineFunctionInfo: {}
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body: |
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bb.0.entry:
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liveins: $r0, $r7, $lr, $r12
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frame-setup t2PAC implicit-def $r12, implicit $lr, implicit $sp
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frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
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frame-setup CFI_INSTRUCTION def_cfa_offset 8
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frame-setup CFI_INSTRUCTION offset $lr, -4
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frame-setup CFI_INSTRUCTION offset $r7, -8
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early-clobber $sp = frame-setup t2STR_PRE killed $r12, $sp, -4, 14 /* CC::al */, $noreg
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frame-setup CFI_INSTRUCTION def_cfa_offset 12
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frame-setup CFI_INSTRUCTION offset $ra_auth_code, -12
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$sp = frame-setup tSUBspi $sp, 1, 14 /* CC::al */, $noreg
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frame-setup CFI_INSTRUCTION def_cfa_offset 16
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renamable $r0, dead $cpsr = nsw tADDi8 killed renamable $r0, 1, 14 /* CC::al */, $noreg
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tBL 14 /* CC::al */, $noreg, @_Z1gi, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def $r0
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renamable $r0, dead $cpsr = nsw tSUBi8 killed renamable $r0, 1, 14 /* CC::al */, $noreg
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$sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
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$r12, $sp = frame-destroy t2LDR_POST $sp, 4, 14 /* CC::al */, $noreg
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$sp = frame-destroy t2LDMIA_UPD $sp, 14 /* CC::al */, $noreg, def $r7, def $lr
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t2AUT implicit $r12, implicit $lr, implicit $sp
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tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
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...
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# Check PAC is replaces with PACBTI and it has the frame-setup flag
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# CHECK-LABEL: bb.0.entry:
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# CHECK: frame-setup t2PACBTI |