1; RUN: llc %s -stop-before finalize-isel -o - \ 2; RUN: -experimental-debug-variable-locations=false \ 3; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE 4; RUN: llc %s -stop-before finalize-isel -o - \ 5; RUN: -experimental-debug-variable-locations=true \ 6; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF 7 8; Repeat checks with experimental debginfo iterators. 9; RUN: llc %s -stop-before finalize-isel -o - \ 10; RUN: -try-experimental-debuginfo-iterators \ 11; RUN: -experimental-debug-variable-locations=false \ 12; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE 13; RUN: llc %s -stop-before finalize-isel -o - \ 14; RUN: -try-experimental-debuginfo-iterators \ 15; RUN: -experimental-debug-variable-locations=true \ 16; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF 17 18;-------------------------------------------------------------------- 19; This test case is basically generated from the following C code. 20; Compiled with "--target=x86_64-apple-darwin -S -g -O3" to get debug 21; info for optimized code. 22; 23; struct SS { 24; int a; 25; int b; 26; } S = { .a = 23, .b = -17 }; 27; 28; int test1() { 29; struct SS* foo1 = &S; 30; return (int)foo1; 31; } 32; 33; int test2() { 34; struct SS* foo2 = &S; 35; struct SS* bar2 = &S; 36; return (int)foo2 + (int)bar2; 37; } 38; 39; int test3() { 40; struct SS* bar3 = &S; 41; struct SS* foo3 = &S; 42; return (int)foo3 + (int)bar3; 43; } 44; 45; int test4() { 46; struct SS* foo4 = &S; 47; struct SS* bar4 = &S; 48; foo = 0; 49; return (int)foo4 + (int)bar4; 50; } 51; 52; int test5() { 53; struct SS* bar5 = &S; 54; struct SS* foo5 = &S; 55; foo5 = 0; 56; return (int)foo5 + (int)bar5; 57; } 58;-------------------------------------------------------------------- 59 60; CHECK: ![[FOO1:.*]] = !DILocalVariable(name: "foo1" 61; CHECK: ![[BAR1:.*]] = !DILocalVariable(name: "bar1" 62; CHECK: ![[FOO2:.*]] = !DILocalVariable(name: "foo2" 63; CHECK: ![[BAR2:.*]] = !DILocalVariable(name: "bar2" 64; CHECK: ![[FOO3:.*]] = !DILocalVariable(name: "bar3" 65; CHECK: ![[BAR3:.*]] = !DILocalVariable(name: "foo3" 66; CHECK: ![[FOO4:.*]] = !DILocalVariable(name: "foo4" 67; CHECK: ![[BAR4:.*]] = !DILocalVariable(name: "bar4" 68; CHECK: ![[BAR5:.*]] = !DILocalVariable(name: "bar5" 69; CHECK: ![[FOO5:.*]] = !DILocalVariable(name: "foo5" 70 71 72source_filename = "sdag-dangling-dbgvalue.c" 73target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 74target triple = "x86_64-apple-macosx10.4.0" 75 76%struct.SS = type { i32, i32 } 77 78@S = global %struct.SS { i32 23, i32 -17 }, align 4, !dbg !0 79 80; Verify that the def comes before the for foo1. 81define i32 @test1() local_unnamed_addr #0 !dbg !17 { 82; CHECK-LABEL: bb.0.entry1 83; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[BAR1]], !DIExpression() 84; CHECK-NEXT: [[REG1:%[0-9]+]]:gr64 = LEA64r 85; INSTRREF-SAME: debug-instr-number 1 86; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO1]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 87; DBGVALUE-NEXT: DBG_VALUE [[REG1]], $noreg, ![[FOO1]], !DIExpression() 88entry1: 89 call void @llvm.dbg.value(metadata ptr @S, metadata !20, metadata !DIExpression()), !dbg !23 90 call void @llvm.dbg.value(metadata ptr null, metadata !22, metadata !DIExpression()), !dbg !24 91 ret i32 ptrtoint (ptr @S to i32), !dbg !25 92} 93 94; Verify that the def comes before the for foo2 and bar2. 95define i32 @test2() local_unnamed_addr #0 !dbg !26 { 96; CHECK-LABEL: bb.0.entry2 97; CHECK-NEXT: [[REG2:%[0-9]+]]:gr64 = LEA64r 98; INSTRREF-SAME: debug-instr-number 1 99; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO2]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 100; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR2]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 101; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, ![[FOO2]], !DIExpression 102; DBGVALUE-NEXT: DBG_VALUE [[REG2]], $noreg, ![[BAR2]], !DIExpression 103entry2: 104 call void @llvm.dbg.value(metadata ptr @S, metadata !28, metadata !DIExpression()), !dbg !30 105 call void @llvm.dbg.value(metadata ptr @S, metadata !29, metadata !DIExpression()), !dbg !31 106 ret i32 add (i32 ptrtoint (ptr @S to i32), i32 ptrtoint (ptr @S to i32)), !dbg !32 107} 108 109; Verify that the def comes before the for foo3 and bar3. 110define i32 @test3() local_unnamed_addr #0 !dbg !33 { 111; CHECK-LABEL: bb.0.entry3 112; CHECK-NEXT: [[REG3:%[0-9]+]]:gr64 = LEA64r 113; INSTRREF-SAME: debug-instr-number 1 114; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR3]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 115; INSTRREF-NEXT: DBG_INSTR_REF ![[FOO3]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 116; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, ![[BAR3]], !DIExpression() 117; DBGVALUE-NEXT: DBG_VALUE [[REG3]], $noreg, ![[FOO3]], !DIExpression() 118entry3: 119 call void @llvm.dbg.value(metadata ptr @S, metadata !36, metadata !DIExpression()), !dbg !38 120 call void @llvm.dbg.value(metadata ptr @S, metadata !35, metadata !DIExpression()), !dbg !37 121 ret i32 add (i32 ptrtoint (ptr @S to i32), i32 ptrtoint (ptr @S to i32)), !dbg !39 122} 123 124; Verify that the def comes before the for bar4. 125define i32 @test4() local_unnamed_addr #0 !dbg !40 { 126; CHECK-LABEL: bb.0.entry4 127; CHECK-NEXT: DBG_VALUE $noreg, $noreg, ![[FOO4]], !DIExpression() 128; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[FOO4]], !DIExpression() 129; CHECK-NEXT: [[REG4:%[0-9]+]]:gr64 = LEA64r 130; INSTRREF-SAME: debug-instr-number 1 131; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR4]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 132; DBGVALUE-NEXT: DBG_VALUE [[REG4]], $noreg, ![[BAR4]], !DIExpression() 133entry4: 134 call void @llvm.dbg.value(metadata ptr @S, metadata !42, metadata !DIExpression()), !dbg !44 135 call void @llvm.dbg.value(metadata ptr @S, metadata !43, metadata !DIExpression()), !dbg !45 136 call void @llvm.dbg.value(metadata ptr null, metadata !42, metadata !DIExpression()), !dbg !44 137 ret i32 ptrtoint (ptr @S to i32), !dbg !46 138} 139 140; Verify that we do not get a DBG_VALUE that maps foo5 to @S here. 141define i32 @test5() local_unnamed_addr #0 !dbg !47 { 142; CHECK-LABEL: bb.0.entry5: 143; CHECK-NEXT: DBG_VALUE $noreg, $noreg, ![[FOO5]], !DIExpression() 144; CHECK-NEXT: DBG_VALUE 0, $noreg, ![[FOO5]], !DIExpression() 145; CHECK-NEXT: [[REG5:%[0-9]+]]:gr64 = LEA64r 146; INSTRREF-SAME: debug-instr-number 1 147; INSTRREF-NEXT: DBG_INSTR_REF ![[BAR5]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0) 148; DBGVALUE-NEXT: DBG_VALUE [[REG5]], $noreg, ![[BAR5]], !DIExpression() 149; CHECK-NOT: DBG_{{.*}} ![[FOO5]], !DIExpression() 150; CHECK: RET 151entry5: 152 call void @llvm.dbg.value(metadata ptr @S, metadata !49, metadata !DIExpression()), !dbg !51 153 call void @llvm.dbg.value(metadata ptr @S, metadata !50, metadata !DIExpression()), !dbg !52 154 call void @llvm.dbg.value(metadata ptr null, metadata !50, metadata !DIExpression()), !dbg !52 155 ret i32 ptrtoint (ptr @S to i32), !dbg !53 156} 157 158; Function Attrs: nounwind readnone speculatable 159declare void @llvm.dbg.value(metadata, metadata, metadata) #1 160 161attributes #0 = { nounwind readnone uwtable } 162attributes #1 = { nounwind readnone speculatable } 163 164!llvm.dbg.cu = !{!2} 165!llvm.module.flags = !{!12, !13, !14, !15} 166!llvm.ident = !{!16} 167 168!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 169!1 = distinct !DIGlobalVariable(name: "S", scope: !2, file: !3, line: 4, type: !8, isLocal: false, isDefinition: true) 170!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) 171!3 = !DIFile(filename: "sdag-dangling-dbgvalue.c", directory: "/") 172!4 = !{} 173!5 = !{!6} 174!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 175!7 = !{!0} 176!8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "SS", file: !3, line: 1, size: 64, elements: !9) 177!9 = !{!10, !11} 178!10 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !8, file: !3, line: 2, baseType: !6, size: 32) 179!11 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !8, file: !3, line: 3, baseType: !6, size: 32, offset: 32) 180!12 = !{i32 2, !"Dwarf Version", i32 2} 181!13 = !{i32 2, !"Debug Info Version", i32 3} 182!14 = !{i32 1, !"wchar_size", i32 4} 183!15 = !{i32 7, !"PIC Level", i32 2} 184!16 = !{!"clang version 7.0.0 (trunk 327229) (llvm/trunk 327239)"} 185!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) 186!18 = !DISubroutineType(types: !5) 187!19 = !{!20, !22} 188!20 = !DILocalVariable(name: "foo1", scope: !17, file: !3, line: 7, type: !21) 189!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64) 190!22 = !DILocalVariable(name: "bar1", scope: !17, file: !3, line: 8, type: !21) 191!23 = !DILocation(line: 7, column: 14, scope: !17) 192!24 = !DILocation(line: 8, column: 14, scope: !17) 193!25 = !DILocation(line: 9, column: 3, scope: !17) 194!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) 195!27 = !{!28, !29} 196!28 = !DILocalVariable(name: "foo2", scope: !26, file: !3, line: 13, type: !21) 197!29 = !DILocalVariable(name: "bar2", scope: !26, file: !3, line: 14, type: !21) 198!30 = !DILocation(line: 13, column: 14, scope: !26) 199!31 = !DILocation(line: 14, column: 14, scope: !26) 200!32 = !DILocation(line: 15, column: 3, scope: !26) 201!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) 202!34 = !{!35, !36} 203!35 = !DILocalVariable(name: "bar3", scope: !33, file: !3, line: 19, type: !21) 204!36 = !DILocalVariable(name: "foo3", scope: !33, file: !3, line: 20, type: !21) 205!37 = !DILocation(line: 19, column: 14, scope: !33) 206!38 = !DILocation(line: 20, column: 14, scope: !33) 207!39 = !DILocation(line: 21, column: 3, scope: !33) 208!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) 209!41 = !{!42, !43} 210!42 = !DILocalVariable(name: "foo4", scope: !40, file: !3, line: 25, type: !21) 211!43 = !DILocalVariable(name: "bar4", scope: !40, file: !3, line: 26, type: !21) 212!44 = !DILocation(line: 25, column: 14, scope: !40) 213!45 = !DILocation(line: 26, column: 14, scope: !40) 214!46 = !DILocation(line: 28, column: 3, scope: !40) 215!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) 216!48 = !{!49, !50} 217!49 = !DILocalVariable(name: "bar5", scope: !47, file: !3, line: 32, type: !21) 218!50 = !DILocalVariable(name: "foo5", scope: !47, file: !3, line: 33, type: !21) 219!51 = !DILocation(line: 32, column: 14, scope: !47) 220!52 = !DILocation(line: 33, column: 14, scope: !47) 221!53 = !DILocation(line: 35, column: 3, scope: !47) 222