# 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, variables: !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 ...