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# RUN: llc -mtriple=thumbv6m-apple-unknown-macho --run-pass=arm-cp-islands -o - %s | FileCheck %s
--- |
; ModuleID = 'test.ll'
source_filename = "simple.ll"
target datalayout = "e-m:o-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv6m-apple-unknown-macho"
define i32 @foo(i32 %in) !dbg !5 {
call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !11
switch i32 %in, label %default [
i32 0, label %l0
i32 1, label %l1
i32 2, label %l2
i32 3, label %l3
], !dbg !11
default: ; preds = %0
ret i32 42, !dbg !12
l0: ; preds = %0
ret i32 0, !dbg !13
l1: ; preds = %0
ret i32 1, !dbg !14
l2: ; preds = %0
ret i32 2, !dbg !15
l3: ; preds = %0
ret i32 3, !dbg !16
}
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
!llvm.dbg.cu = !{!0}
!llvm.debugify = !{!2, !3}
!llvm.module.flags = !{!4}
!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
!1 = !DIFile(filename: "simple.ll", directory: "/")
!2 = !{i32 6}
!3 = !{i32 1}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
!6 = !DISubroutineType(types: !7)
!7 = !{}
!8 = !{!9}
!9 = !DILocalVariable(name: "1", scope: !5, file: !1, line: 1, type: !10)
!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
!11 = !DILocation(line: 1, column: 1, scope: !5)
!12 = !DILocation(line: 2, column: 1, scope: !5)
!13 = !DILocation(line: 3, column: 1, scope: !5)
!14 = !DILocation(line: 4, column: 1, scope: !5)
!15 = !DILocation(line: 5, column: 1, scope: !5)
!16 = !DILocation(line: 6, column: 1, scope: !5)
...
---
name: foo
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
callsEHReturn: false
callsUnwindInit: false
hasEHContTarget: false
hasEHScopes: false
hasEHFunclets: false
debugInstrRef: false
failsVerification: false
tracksDebugUserValues: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
functionContext: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack: []
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
jumpTable:
kind: inline
entries:
- id: 0
blocks: [ '%bb.3', '%bb.4', '%bb.5', '%bb.6' ]
body: |
bb.0 (%ir-block.0):
successors: %bb.2(0x19999998), %bb.1(0x66666668)
liveins: $r0
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
tCMPi8 renamable $r0, 3, 14 /* CC::al */, $noreg, implicit-def $cpsr, debug-location !11
tBcc %bb.2, 8 /* CC::hi */, killed $cpsr, debug-location !11
bb.1 (%ir-block.0):
successors: %bb.3(0x20000000), %bb.4(0x20000000), %bb.5(0x20000000), %bb.6(0x20000000)
liveins: $r0
renamable $r0, dead $cpsr = tLSLri killed renamable $r0, 2, 14 /* CC::al */, $noreg
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r1 = tLEApcrelJT %jump-table.0, 14 /* CC::al */, $noreg
renamable $r0 = tLDRr renamable $r1, killed renamable $r0, 14 /* CC::al */, $noreg :: (load (s32) from jump-table)
renamable $r0, dead $cpsr = tADDrr killed renamable $r1, killed renamable $r0, 14 /* CC::al */, $noreg
tBR_JTr killed renamable $r0, %jump-table.0
; CHECK: tTBB_JT
bb.3.l0:
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r0, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
tBX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !13
bb.2.default:
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r0, dead $cpsr = tMOVi8 42, 14 /* CC::al */, $noreg
tBX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !12
bb.4.l1:
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r0, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
tBX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !14
bb.5.l2:
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r0, dead $cpsr = tMOVi8 2, 14 /* CC::al */, $noreg
tBX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !15
bb.6.l3:
DBG_VALUE 0, $noreg, !9, !DIExpression(), debug-location !11
renamable $r0, dead $cpsr = tMOVi8 3, 14 /* CC::al */, $noreg
tBX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !16
...
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