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llvm-mirror/test/CodeGen/ARM/dbg-range-extension.mir
Matthias Braun 08fbde827c MachineOperand/MIParser: Do not print debug-use flag, infer it 
The debug-use flag must be set exactly for uses on DBG_VALUEs.  This is
so obvious that it can be trivially inferred while parsing. This will
reduce noise when printing while omitting an information that has little
value to the user.

The parser will keep recognizing the flag for compatibility with old
`.mir` files.

Differential Revision: https://reviews.llvm.org/D53903

llvm-svn: 345671
2018-10-30 23:28:27 +00:00

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# RUN: llc -mtriple=arm-eabi -run-pass=livedebugvalues %s -o - | FileCheck %s
#
# Check that the debug information for variables are propagated into the correct blocks.
#
# Generated from the C source:
#
# int func2(int, int);
# void func(int a) {
# int b = func2(10, 11);
# if (a) {
# int c = func2(12, 13);
# for(int i = 1; i < a; i++) {
# func2(i, i+b);
# }
# func2(b,c);
# }
# func2(b,a);
# }
# CHECK: [[VAR_A:![0-9]+]] = !DILocalVariable(name: "a",
# CHECK: [[VAR_B:![0-9]+]] = !DILocalVariable(name: "b",
# CHECK: [[VAR_C:![0-9]+]] = !DILocalVariable(name: "c",
# CHECK: [[VAR_I:![0-9]+]] = !DILocalVariable(name: "i",
# CHECK: bb.0.entry
# CHECK: DBG_VALUE $r0, $noreg, [[VAR_A]]
# CHECK: DBG_VALUE [[REG_A:\$r[0-9]+]], $noreg, [[VAR_A]]
# CHECK: DBG_VALUE [[REG_B:\$r[0-9]+]], $noreg, [[VAR_B]]
# CHECK: bb.1.if.then
# CHECK: DBG_VALUE [[REG_B]], $noreg, [[VAR_B]]
# CHECK: DBG_VALUE [[REG_A]], $noreg, [[VAR_A]]
# CHECK: DBG_VALUE [[REG_C:\$r[0-9]+]], $noreg, [[VAR_C]]
# CHECK: DBG_VALUE 1, 0, [[VAR_I]]
# CHECK: bb.2.for.body
# CHECK: DBG_VALUE [[REG_I:\$r[0-9]+]], $noreg, [[VAR_I]]
# CHECK: DBG_VALUE [[REG_C]], $noreg, [[VAR_C]]
# CHECK: DBG_VALUE [[REG_B]], $noreg, [[VAR_B]]
# CHECK: DBG_VALUE [[REG_A]], $noreg, [[VAR_A]]
# CHECK: DBG_VALUE [[REG_I]], $noreg, [[VAR_I]]
# CHECK: bb.3.for.cond
# CHECK: DBG_VALUE [[REG_C]], $noreg, [[VAR_C]]
# CHECK: DBG_VALUE [[REG_B]], $noreg, [[VAR_B]]
# CHECK: DBG_VALUE [[REG_A]], $noreg, [[VAR_A]]
# CHECK: DBG_VALUE [[REG_I]], $noreg, [[VAR_I]]
# CHECK: bb.4.for.cond.cleanup
# CHECK: DBG_VALUE [[REG_C]], $noreg, [[VAR_C]]
# CHECK: DBG_VALUE [[REG_B]], $noreg, [[VAR_B]]
# CHECK: DBG_VALUE [[REG_A]], $noreg, [[VAR_A]]
# CHECK: bb.5.if.end
# CHECK: DBG_VALUE [[REG_B]], $noreg, [[VAR_B]]
# CHECK: DBG_VALUE [[REG_A]], $noreg, [[VAR_A]]
--- |
; ModuleID = '/data/kwalker/work/OpenSource-llvm/llvm/test/CodeGen/ARM/dbg-range-extension.ll'
source_filename = "/data/kwalker/work/OpenSource-llvm/llvm/test/CodeGen/ARM/dbg-range-extension.ll"
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "arm---eabi"
; Function Attrs: minsize nounwind optsize
define void @func(i32 %a) local_unnamed_addr #0 !dbg !8 {
entry:
tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !13, metadata !20), !dbg !21
%call = tail call i32 @func2(i32 10, i32 11) #0, !dbg !22
tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !14, metadata !20), !dbg !23
%tobool = icmp eq i32 %a, 0, !dbg !24
br i1 %tobool, label %if.end, label %if.then, !dbg !25
if.then: ; preds = %entry
%call1 = tail call i32 @func2(i32 12, i32 13) #0, !dbg !26
tail call void @llvm.dbg.value(metadata i32 %call1, i64 0, metadata !15, metadata !20), !dbg !27
tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !18, metadata !20), !dbg !28
br label %for.cond, !dbg !29
for.cond: ; preds = %for.body, %if.then
%i.0 = phi i32 [ 1, %if.then ], [ %inc, %for.body ]
tail call void @llvm.dbg.value(metadata i32 %i.0, i64 0, metadata !18, metadata !20), !dbg !28
%cmp = icmp slt i32 %i.0, %a, !dbg !30
br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !33
for.cond.cleanup: ; preds = %for.cond
%call3 = tail call i32 @func2(i32 %call, i32 %call1) #0, !dbg !34
br label %if.end, !dbg !35
for.body: ; preds = %for.cond
%0 = add i32 %call, %i.0, !dbg !36
%call2 = tail call i32 @func2(i32 %i.0, i32 %0) #0, !dbg !36
%inc = add nuw nsw i32 %i.0, 1, !dbg !38
tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !18, metadata !20), !dbg !28
br label %for.cond, !dbg !40, !llvm.loop !41
if.end: ; preds = %for.cond.cleanup, %entry
%call4 = tail call i32 @func2(i32 %call, i32 %a) #0, !dbg !43
ret void, !dbg !44
}
; Function Attrs: minsize optsize
declare i32 @func2(i32, i32) local_unnamed_addr #1
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
; Function Attrs: nounwind
declare void @llvm.stackprotector(i8*, i8**) #3
attributes #0 = { minsize nounwind optsize }
attributes #1 = { minsize optsize }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !6}
!llvm.ident = !{!7}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "loop.c", directory: "/tmp")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{i32 1, !"min_enum_size", i32 4}
!7 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git b8f10df3679b36f51e1de7c4351b82d297825089) (http://llvm.org/git/llvm.git c2a5d16d1e3b8c49f5bbb1ff87a76ac4f88edb89)"}
!8 = distinct !DISubprogram(name: "func", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)
!9 = !DISubroutineType(types: !10)
!10 = !{null, !11}
!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!12 = !{!13, !14, !15, !18}
!13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)
!14 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !11)
!15 = !DILocalVariable(name: "c", scope: !16, file: !1, line: 5, type: !11)
!16 = distinct !DILexicalBlock(scope: !17, file: !1, line: 4, column: 9)
!17 = distinct !DILexicalBlock(scope: !8, file: !1, line: 4, column: 6)
!18 = !DILocalVariable(name: "i", scope: !19, file: !1, line: 6, type: !11)
!19 = distinct !DILexicalBlock(scope: !16, file: !1, line: 6, column: 3)
!20 = !DIExpression()
!21 = !DILocation(line: 2, column: 15, scope: !8)
!22 = !DILocation(line: 3, column: 17, scope: !8)
!23 = !DILocation(line: 3, column: 13, scope: !8)
!24 = !DILocation(line: 4, column: 6, scope: !17)
!25 = !DILocation(line: 4, column: 6, scope: !8)
!26 = !DILocation(line: 5, column: 11, scope: !16)
!27 = !DILocation(line: 5, column: 7, scope: !16)
!28 = !DILocation(line: 6, column: 11, scope: !19)
!29 = !DILocation(line: 6, column: 7, scope: !19)
!30 = !DILocation(line: 6, column: 20, scope: !31)
!31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 1)
!32 = distinct !DILexicalBlock(scope: !19, file: !1, line: 6, column: 3)
!33 = !DILocation(line: 6, column: 3, scope: !31)
!34 = !DILocation(line: 9, column: 3, scope: !16)
!35 = !DILocation(line: 10, column: 2, scope: !16)
!36 = !DILocation(line: 7, column: 4, scope: !37)
!37 = distinct !DILexicalBlock(scope: !32, file: !1, line: 6, column: 30)
!38 = !DILocation(line: 6, column: 26, scope: !39)
!39 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3)
!40 = !DILocation(line: 6, column: 3, scope: !39)
!41 = distinct !{!41, !42}
!42 = !DILocation(line: 6, column: 3, scope: !16)
!43 = !DILocation(line: 11, column: 2, scope: !8)
!44 = !DILocation(line: 12, column: 1, scope: !8)
...
---
name: func
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: false
liveins:
- { reg: '$r0' }
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: 24
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: '$lr' }
- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r11' }
- { id: 2, type: spill-slot, offset: -12, size: 4, alignment: 4, callee-saved-register: '$r7' }
- { id: 3, type: spill-slot, offset: -16, size: 4, alignment: 4, callee-saved-register: '$r6' }
- { id: 4, type: spill-slot, offset: -20, size: 4, alignment: 4, callee-saved-register: '$r5' }
- { id: 5, type: spill-slot, offset: -24, size: 4, alignment: 4, callee-saved-register: '$r4' }
body: |
bb.0.entry:
liveins: $r0, $r4, $r5, $r6, $r7, $r11, $lr
$sp = frame-setup STMDB_UPD $sp, 14, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r11, killed $lr
frame-setup CFI_INSTRUCTION def_cfa_offset 24
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r11, -8
frame-setup CFI_INSTRUCTION offset $r7, -12
frame-setup CFI_INSTRUCTION offset $r6, -16
frame-setup CFI_INSTRUCTION offset $r5, -20
frame-setup CFI_INSTRUCTION offset $r4, -24
DBG_VALUE $r0, $noreg, !13, !20, debug-location !21
$r4 = MOVr killed $r0, 14, $noreg, $noreg
DBG_VALUE $r4, $noreg, !13, !20, debug-location !21
$r0 = MOVi 10, 14, $noreg, _, debug-location !22
$r1 = MOVi 11, 14, $noreg, _, debug-location !22
BL @func2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit-def $sp, implicit-def $r0, debug-location !22
$r5 = MOVr killed $r0, 14, $noreg, _, debug-location !22
DBG_VALUE $r5, $noreg, !14, !20, debug-location !23
CMPri $r4, 0, 14, $noreg, implicit-def $cpsr, debug-location !25
Bcc %bb.5.if.end, 0, killed $cpsr
bb.1.if.then:
liveins: $r4, $r5
$r0 = MOVi 12, 14, $noreg, _, debug-location !26
$r1 = MOVi 13, 14, $noreg, _, debug-location !26
BL @func2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit-def $sp, implicit-def $r0, debug-location !26
$r6 = MOVr killed $r0, 14, $noreg, _, debug-location !26
DBG_VALUE $r6, $noreg, !15, !20, debug-location !27
$r7 = MOVi 1, 14, $noreg, $noreg
DBG_VALUE 1, 0, !18, !20, debug-location !28
B %bb.3.for.cond
bb.2.for.body:
liveins: $r4, $r5, $r6, $r7
$r1 = ADDrr $r5, $r7, 14, $noreg, _, debug-location !36
$r0 = MOVr $r7, 14, $noreg, _, debug-location !36
BL @func2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit-def $sp, implicit-def dead $r0, debug-location !36
$r7 = ADDri killed $r7, 1, 14, $noreg, _, debug-location !38
DBG_VALUE $r7, $noreg, !18, !20, debug-location !28
bb.3.for.cond:
liveins: $r4, $r5, $r6, $r7
DBG_VALUE $r7, $noreg, !18, !20, debug-location !28
CMPrr $r7, $r4, 14, $noreg, implicit-def $cpsr, debug-location !33
Bcc %bb.2.for.body, 11, killed $cpsr, debug-location !33
bb.4.for.cond.cleanup:
liveins: $r4, $r5, $r6
$r0 = MOVr $r5, 14, $noreg, _, debug-location !34
$r1 = MOVr killed $r6, 14, $noreg, _, debug-location !34
BL @func2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit-def $sp, implicit-def dead $r0, debug-location !34
bb.5.if.end:
liveins: $r4, $r5
$r0 = MOVr killed $r5, 14, $noreg, _, debug-location !43
$r1 = MOVr killed $r4, 14, $noreg, _, debug-location !43
$sp = LDMIA_UPD $sp, 14, $noreg, def $r4, def $r5, def $r6, def $r7, def $r11, def $lr, debug-location !43
TAILJMPd @func2, implicit $sp, implicit $sp, implicit killed $r0, implicit killed $r1, debug-location !43
...
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