212 lines · plain
1; RUN: llc %s -stop-before finalize-isel -o - \2; RUN: -experimental-debug-variable-locations=false \3; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE4; RUN: llc %s -stop-before finalize-isel -o - \5; RUN: -experimental-debug-variable-locations=true \6; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF7 8;--------------------------------------------------------------------9; This test case is basically generated from the following C code.10; Compiled with "--target=x86_64-apple-darwin -S -g -O3" to get debug11; info for optimized code.12;13; struct SS {14; int a;15; int b;16; } S = { .a = 23, .b = -17 };17;18; int test1() {19; struct SS* foo1 = &S;20; return (int)foo1;21; }22;23; int test2() {24; struct SS* foo2 = &S;25; struct SS* bar2 = &S;26; return (int)foo2 + (int)bar2;27; }28;29; int test3() {30; struct SS* bar3 = &S;31; struct SS* foo3 = &S;32; return (int)foo3 + (int)bar3;33; }34;35; int test4() {36; struct SS* foo4 = &S;37; struct SS* bar4 = &S;38; foo = 0;39; return (int)foo4 + (int)bar4;40; }41;42; int test5() {43; struct SS* bar5 = &S;44; struct SS* foo5 = &S;45; foo5 = 0;46; return (int)foo5 + (int)bar5;47; }48;--------------------------------------------------------------------49 50; CHECK: ![[FOO1:.*]] = !DILocalVariable(name: "foo1"51; CHECK: ![[BAR1:.*]] = !DILocalVariable(name: "bar1"52; CHECK: ![[FOO2:.*]] = !DILocalVariable(name: "foo2"53; CHECK: ![[BAR2:.*]] = !DILocalVariable(name: "bar2"54; CHECK: ![[FOO3:.*]] = !DILocalVariable(name: "bar3"55; CHECK: ![[BAR3:.*]] = !DILocalVariable(name: "foo3"56; CHECK: ![[FOO4:.*]] = !DILocalVariable(name: "foo4"57; CHECK: ![[BAR4:.*]] = !DILocalVariable(name: "bar4"58; CHECK: ![[BAR5:.*]] = !DILocalVariable(name: "bar5"59; CHECK: ![[FOO5:.*]] = !DILocalVariable(name: "foo5"60 61 62source_filename = "sdag-dangling-dbgvalue.c"63target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"64target triple = "x86_64-apple-macosx10.4.0"65 66%struct.SS = type { i32, i32 }67 68@S = global %struct.SS { i32 23, i32 -17 }, align 4, !dbg !069 70; Verify that the def comes before the for foo1.71define i32 @test1() local_unnamed_addr #0 !dbg !17 {72; CHECK-LABEL: bb.0.entry173; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[BAR1]], !DIExpression()74; CHECK-NEXT: [[REG1:%[0-9]+]]:gr64 = LEA64r75; INSTRREF-SAME: debug-instr-number 176; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO1]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)77; DBGVALUE-NEXT: DBG_VALUE [[REG1]], $noreg, ![[FOO1]], !DIExpression()78entry1:79 call void @llvm.dbg.value(metadata ptr @S, metadata !20, metadata !DIExpression()), !dbg !2380 call void @llvm.dbg.value(metadata ptr null, metadata !22, metadata !DIExpression()), !dbg !2481 ret i32 ptrtoint (ptr @S to i32), !dbg !2582}83 84; Verify that the def comes before the for foo2 and bar2.85define i32 @test2() local_unnamed_addr #0 !dbg !26 {86; CHECK-LABEL: bb.0.entry287; CHECK-NEXT: [[REG2:%[0-9]+]]:gr64 = LEA64r88; INSTRREF-SAME: debug-instr-number 189; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO2]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)90; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR2]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)91; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, ![[FOO2]], !DIExpression92; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, ![[BAR2]], !DIExpression93entry2:94 call void @llvm.dbg.value(metadata ptr @S, metadata !28, metadata !DIExpression()), !dbg !3095 call void @llvm.dbg.value(metadata ptr @S, metadata !29, metadata !DIExpression()), !dbg !3196 ret i32 add (i32 ptrtoint (ptr @S to i32), i32 ptrtoint (ptr @S to i32)), !dbg !3297}98 99; Verify that the def comes before the for foo3 and bar3.100define i32 @test3() local_unnamed_addr #0 !dbg !33 {101; CHECK-LABEL: bb.0.entry3102; CHECK-NEXT: [[REG3:%[0-9]+]]:gr64 = LEA64r103; INSTRREF-SAME: debug-instr-number 1104; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR3]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)105; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO3]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)106; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, ![[BAR3]], !DIExpression()107; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, ![[FOO3]], !DIExpression()108entry3:109 call void @llvm.dbg.value(metadata ptr @S, metadata !36, metadata !DIExpression()), !dbg !38110 call void @llvm.dbg.value(metadata ptr @S, metadata !35, metadata !DIExpression()), !dbg !37111 ret i32 add (i32 ptrtoint (ptr @S to i32), i32 ptrtoint (ptr @S to i32)), !dbg !39112}113 114; Verify that the def comes before the for bar4.115define i32 @test4() local_unnamed_addr #0 !dbg !40 {116; CHECK-LABEL: bb.0.entry4117; CHECK-NEXT: DBG_VALUE $noreg, $noreg, ![[FOO4]], !DIExpression()118; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[FOO4]], !DIExpression()119; CHECK-NEXT: [[REG4:%[0-9]+]]:gr64 = LEA64r120; INSTRREF-SAME: debug-instr-number 1121; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR4]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)122; DBGVALUE-NEXT: DBG_VALUE [[REG4]], $noreg, ![[BAR4]], !DIExpression()123entry4:124 call void @llvm.dbg.value(metadata ptr @S, metadata !42, metadata !DIExpression()), !dbg !44125 call void @llvm.dbg.value(metadata ptr @S, metadata !43, metadata !DIExpression()), !dbg !45126 call void @llvm.dbg.value(metadata ptr null, metadata !42, metadata !DIExpression()), !dbg !44127 ret i32 ptrtoint (ptr @S to i32), !dbg !46128}129 130; Verify that we do not get a DBG_VALUE that maps foo5 to @S here.131define i32 @test5() local_unnamed_addr #0 !dbg !47 {132; CHECK-LABEL: bb.0.entry5:133; CHECK-NEXT: DBG_VALUE $noreg, $noreg, ![[FOO5]], !DIExpression()134; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[FOO5]], !DIExpression()135; CHECK-NEXT: [[REG5:%[0-9]+]]:gr64 = LEA64r136; INSTRREF-SAME: debug-instr-number 1137; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR5]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)138; DBGVALUE-NEXT: DBG_VALUE [[REG5]], $noreg, ![[BAR5]], !DIExpression()139; CHECK-NOT: DBG_{{.*}} ![[FOO5]], !DIExpression()140; CHECK: RET141entry5:142 call void @llvm.dbg.value(metadata ptr @S, metadata !49, metadata !DIExpression()), !dbg !51143 call void @llvm.dbg.value(metadata ptr @S, metadata !50, metadata !DIExpression()), !dbg !52144 call void @llvm.dbg.value(metadata ptr null, metadata !50, metadata !DIExpression()), !dbg !52145 ret i32 ptrtoint (ptr @S to i32), !dbg !53146}147 148; Function Attrs: nounwind readnone speculatable149declare void @llvm.dbg.value(metadata, metadata, metadata) #1150 151attributes #0 = { nounwind readnone uwtable }152attributes #1 = { nounwind readnone speculatable }153 154!llvm.dbg.cu = !{!2}155!llvm.module.flags = !{!12, !13, !14, !15}156!llvm.ident = !{!16}157 158!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())159!1 = distinct !DIGlobalVariable(name: "S", scope: !2, file: !3, line: 4, type: !8, isLocal: false, isDefinition: true)160!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (trunk 327229) (llvm/trunk 327239)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !7)161!3 = !DIFile(filename: "sdag-dangling-dbgvalue.c", directory: "/")162!4 = !{}163!5 = !{!6}164!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)165!7 = !{!0}166!8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "SS", file: !3, line: 1, size: 64, elements: !9)167!9 = !{!10, !11}168!10 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !8, file: !3, line: 2, baseType: !6, size: 32)169!11 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !8, file: !3, line: 3, baseType: !6, size: 32, offset: 32)170!12 = !{i32 2, !"Dwarf Version", i32 2}171!13 = !{i32 2, !"Debug Info Version", i32 3}172!14 = !{i32 1, !"wchar_size", i32 4}173!15 = !{i32 7, !"PIC Level", i32 2}174!16 = !{!"clang version 7.0.0 (trunk 327229) (llvm/trunk 327239)"}175!17 = distinct !DISubprogram(name: "test1", scope: !3, file: !3, line: 6, type: !18, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !2, retainedNodes: !19)176!18 = !DISubroutineType(types: !5)177!19 = !{!20, !22}178!20 = !DILocalVariable(name: "foo1", scope: !17, file: !3, line: 7, type: !21)179!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64)180!22 = !DILocalVariable(name: "bar1", scope: !17, file: !3, line: 8, type: !21)181!23 = !DILocation(line: 7, column: 14, scope: !17)182!24 = !DILocation(line: 8, column: 14, scope: !17)183!25 = !DILocation(line: 9, column: 3, scope: !17)184!26 = distinct !DISubprogram(name: "test2", scope: !3, file: !3, line: 12, type: !18, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: true, unit: !2, retainedNodes: !27)185!27 = !{!28, !29}186!28 = !DILocalVariable(name: "foo2", scope: !26, file: !3, line: 13, type: !21)187!29 = !DILocalVariable(name: "bar2", scope: !26, file: !3, line: 14, type: !21)188!30 = !DILocation(line: 13, column: 14, scope: !26)189!31 = !DILocation(line: 14, column: 14, scope: !26)190!32 = !DILocation(line: 15, column: 3, scope: !26)191!33 = distinct !DISubprogram(name: "test3", scope: !3, file: !3, line: 18, type: !18, isLocal: false, isDefinition: true, scopeLine: 18, isOptimized: true, unit: !2, retainedNodes: !34)192!34 = !{!35, !36}193!35 = !DILocalVariable(name: "bar3", scope: !33, file: !3, line: 19, type: !21)194!36 = !DILocalVariable(name: "foo3", scope: !33, file: !3, line: 20, type: !21)195!37 = !DILocation(line: 19, column: 14, scope: !33)196!38 = !DILocation(line: 20, column: 14, scope: !33)197!39 = !DILocation(line: 21, column: 3, scope: !33)198!40 = distinct !DISubprogram(name: "test4", scope: !3, file: !3, line: 24, type: !18, isLocal: false, isDefinition: true, scopeLine: 24, isOptimized: true, unit: !2, retainedNodes: !41)199!41 = !{!42, !43}200!42 = !DILocalVariable(name: "foo4", scope: !40, file: !3, line: 25, type: !21)201!43 = !DILocalVariable(name: "bar4", scope: !40, file: !3, line: 26, type: !21)202!44 = !DILocation(line: 25, column: 14, scope: !40)203!45 = !DILocation(line: 26, column: 14, scope: !40)204!46 = !DILocation(line: 28, column: 3, scope: !40)205!47 = distinct !DISubprogram(name: "test5", scope: !3, file: !3, line: 31, type: !18, isLocal: false, isDefinition: true, scopeLine: 31, isOptimized: true, unit: !2, retainedNodes: !48)206!48 = !{!49, !50}207!49 = !DILocalVariable(name: "bar5", scope: !47, file: !3, line: 32, type: !21)208!50 = !DILocalVariable(name: "foo5", scope: !47, file: !3, line: 33, type: !21)209!51 = !DILocation(line: 32, column: 14, scope: !47)210!52 = !DILocation(line: 33, column: 14, scope: !47)211!53 = !DILocation(line: 35, column: 3, scope: !47)212