| # 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 debug-use $r0, debug-use $noreg, [[VAR_A]] |
| # CHECK: DBG_VALUE debug-use [[REG_A:\$r[0-9]+]], debug-use $noreg, [[VAR_A]] |
| # CHECK: DBG_VALUE debug-use [[REG_B:\$r[0-9]+]], debug-use $noreg, [[VAR_B]] |
| |
| # CHECK: bb.1.if.then |
| # CHECK: DBG_VALUE debug-use [[REG_B]], debug-use $noreg, [[VAR_B]] |
| # CHECK: DBG_VALUE debug-use [[REG_A]], debug-use $noreg, [[VAR_A]] |
| # CHECK: DBG_VALUE debug-use [[REG_C:\$r[0-9]+]], debug-use $noreg, [[VAR_C]] |
| # CHECK: DBG_VALUE 1, 0, [[VAR_I]] |
| |
| # CHECK: bb.2.for.body |
| # CHECK: DBG_VALUE debug-use [[REG_I:\$r[0-9]+]], debug-use $noreg, [[VAR_I]] |
| # CHECK: DBG_VALUE debug-use [[REG_C]], debug-use $noreg, [[VAR_C]] |
| # CHECK: DBG_VALUE debug-use [[REG_B]], debug-use $noreg, [[VAR_B]] |
| # CHECK: DBG_VALUE debug-use [[REG_A]], debug-use $noreg, [[VAR_A]] |
| # CHECK: DBG_VALUE debug-use [[REG_I]], debug-use $noreg, [[VAR_I]] |
| |
| # CHECK: bb.3.for.cond |
| # CHECK: DBG_VALUE debug-use [[REG_C]], debug-use $noreg, [[VAR_C]] |
| # CHECK: DBG_VALUE debug-use [[REG_B]], debug-use $noreg, [[VAR_B]] |
| # CHECK: DBG_VALUE debug-use [[REG_A]], debug-use $noreg, [[VAR_A]] |
| # CHECK: DBG_VALUE debug-use [[REG_I]], debug-use $noreg, [[VAR_I]] |
| |
| # CHECK: bb.4.for.cond.cleanup |
| # CHECK: DBG_VALUE debug-use [[REG_C]], debug-use $noreg, [[VAR_C]] |
| # CHECK: DBG_VALUE debug-use [[REG_B]], debug-use $noreg, [[VAR_B]] |
| # CHECK: DBG_VALUE debug-use [[REG_A]], debug-use $noreg, [[VAR_A]] |
| |
| # CHECK: bb.5.if.end |
| # CHECK: DBG_VALUE debug-use [[REG_B]], debug-use $noreg, [[VAR_B]] |
| # CHECK: DBG_VALUE debug-use [[REG_A]], debug-use $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 debug-use $r0, debug-use $noreg, !13, !20, debug-location !21 |
| $r4 = MOVr killed $r0, 14, $noreg, $noreg |
| DBG_VALUE debug-use $r4, debug-use $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 debug-use $r5, debug-use $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 debug-use $r6, debug-use $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 debug-use $r7, debug-use $noreg, !18, !20, debug-location !28 |
| |
| bb.3.for.cond: |
| liveins: $r4, $r5, $r6, $r7 |
| |
| DBG_VALUE debug-use $r7, debug-use $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 |
| |
| ... |
