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llvm-project/llvm/test/CodeGen/ARM/ARMLoadStoreDBG.mir

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# RUN: llc -mtriple thumbv7 -verify-machineinstrs -run-pass arm-ldst-opt %s -o - | FileCheck %s
--- |
; ModuleID = '/Volumes/Data/llvm/test/CodeGen/ARM/sched-it-debug-nodes.ll'
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7"
%struct.s = type opaque
; Function Attrs: nounwind
define arm_aapcscc i32 @f(%struct.s* %s, i32 %u, i8* %b, i32 %n) #0 !dbg !4 {
entry:
tail call void @llvm.dbg.value(metadata %struct.s* %s, i64 0, metadata !18, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i32 %u, i64 0, metadata !19, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i8* %b, i64 0, metadata !20, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !21, metadata !27), !dbg !28
%cmp = icmp ult i32 %n, 4, !dbg !29
br i1 %cmp, label %return, label %if.end, !dbg !31
if.end: ; preds = %entry
tail call arm_aapcscc void @g(%struct.s* %s, i8* %b, i32 %n) #3, !dbg !32
br label %return, !dbg !33
return: ; preds = %if.end, %entry
%retval.0 = phi i32 [ 0, %if.end ], [ -1, %entry ]
ret i32 %retval.0, !dbg !34
}
declare arm_aapcscc void @g(%struct.s*, i8*, i32) #1
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!22, !23, !24, !25}
!llvm.ident = !{!26}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
!2 = !{}
!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !17)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !8, !11, !12, !16}
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 32, align: 32)
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "s", file: !1, line: 5, baseType: !10)
!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !1, line: 5, flags: DIFlagFwdDecl)
!11 = !DIBasicType(name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32, align: 32)
!13 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !14)
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint8_t", file: !1, line: 2, baseType: !15)
!15 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
!16 = !DIDerivedType(tag: DW_TAG_typedef, name: "size_t", file: !1, line: 3, baseType: !11)
!17 = !{!18, !19, !20, !21}
!18 = !DILocalVariable(name: "s", arg: 1, scope: !4, file: !1, line: 9, type: !8)
!19 = !DILocalVariable(name: "u", arg: 2, scope: !4, file: !1, line: 9, type: !11)
!20 = !DILocalVariable(name: "b", arg: 3, scope: !4, file: !1, line: 9, type: !12)
!21 = !DILocalVariable(name: "n", arg: 4, scope: !4, file: !1, line: 9, type: !16)
!22 = !{i32 2, !"Dwarf Version", i32 4}
!23 = !{i32 2, !"Debug Info Version", i32 3}
!24 = !{i32 1, !"wchar_size", i32 4}
!25 = !{i32 1, !"min_enum_size", i32 4}
!26 = !{!"clang version 3.7.0 (llvm/trunk 237059)"}
!27 = !DIExpression()
!28 = !DILocation(line: 9, scope: !4)
!29 = !DILocation(line: 10, scope: !30)
!30 = distinct !DILexicalBlock(scope: !4, file: !1, line: 10)
!31 = !DILocation(line: 10, scope: !4)
!32 = !DILocation(line: 13, scope: !4)
!33 = !DILocation(line: 14, scope: !4)
!34 = !DILocation(line: 15, scope: !4)
...
---
name: f
alignment: 1
exposesReturnsTwice: false
tracksRegLiveness: true
liveins:
- { reg: '%r0' }
- { reg: '%r1' }
- { reg: '%r2' }
- { reg: '%r3' }
calleeSavedRegisters: [ '%lr', '%d8', '%d9', '%d10', '%d11', '%d12', '%d13',
'%d14', '%d15', '%q4', '%q5', '%q6', '%q7', '%r4',
'%r5', '%r6', '%r7', '%r8', '%r9', '%r10', '%r11',
'%s16', '%s17', '%s18', '%s19', '%s20', '%s21',
'%s22', '%s23', '%s24', '%s25', '%s26', '%s27',
'%s28', '%s29', '%s30', '%s31', '%d8_d10', '%d9_d11',
'%d10_d12', '%d11_d13', '%d12_d14', '%d13_d15',
'%q4_q5', '%q5_q6', '%q6_q7', '%q4_q5_q6_q7', '%r4_r5',
'%r6_r7', '%r8_r9', '%r10_r11', '%d8_d9_d10', '%d9_d10_d11',
'%d10_d11_d12', '%d11_d12_d13', '%d12_d13_d14',
'%d13_d14_d15', '%d8_d10_d12', '%d9_d11_d13', '%d10_d12_d14',
'%d11_d13_d15', '%d8_d10_d12_d14', '%d9_d11_d13_d15',
'%d9_d10', '%d11_d12', '%d13_d14', '%d9_d10_d11_d12',
'%d11_d12_d13_d14' ]
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: true
hasCalls: true
maxCallFrameSize: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
stack:
- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '%lr' }
- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '%r7' }
body: |
bb.0.entry:
successors: %bb.1, %bb.2.if.end
liveins: %r0, %r1, %r2, %r3, %lr, %r7
DBG_VALUE debug-use %r0, debug-use _, !18, !27, debug-location !28
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
DBG_VALUE debug-use %r2, debug-use _, !20, !27, debug-location !28
DBG_VALUE debug-use %r3, debug-use _, !21, !27, debug-location !28
t2CMPri %r3, 4, 14, _, implicit-def %cpsr, debug-location !31
t2Bcc %bb.2.if.end, 2, killed %cpsr
bb.1:
liveins: %lr, %r7
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
%r0 = t2MOVi -1, 14, _, _
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
tBX_RET 14, _, implicit %r0, debug-location !34
bb.2.if.end:
liveins: %r0, %r2, %r3, %r7, %lr
%sp = frame-setup t2STMDB_UPD %sp, 14, _, killed %r7, killed %lr
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset %lr, -4
frame-setup CFI_INSTRUCTION offset %r7, -8
DBG_VALUE debug-use %r0, debug-use _, !18, !27, debug-location !28
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
DBG_VALUE debug-use %r2, debug-use _, !20, !27, debug-location !28
DBG_VALUE debug-use %r3, debug-use _, !21, !27, debug-location !28
%r1 = COPY killed %r2, debug-location !32
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
%r2 = COPY killed %r3, debug-location !32
tBL 14, _, @g, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit %r0, implicit %r1, implicit %r2, implicit-def %sp, debug-location !32
%r0 = t2MOVi 0, 14, _, _
%sp = t2LDMIA_UPD %sp, 14, _, def %r7, def %lr
tBX_RET 14, _, implicit %r0, debug-location !34
# Verify that the DBG_VALUE is ignored.
# CHECK: %sp = t2LDMIA_RET %sp, 14, _, def %r7, def %pc, implicit %r0
...
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