| ; RUN: llc -mtriple=x86_64-unknown-unknown -stop-before livedebugvalues %s -o -\ |
| ; RUN: -experimental-debug-variable-locations=false \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,DBGVALUE |
| ; RUN: llc -mtriple=x86_64-unknown-unknown -stop-before livedebugvalues %s -o -\ |
| ; RUN: -experimental-debug-variable-locations=true \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK,INSTRREF |
| ; |
| ; Generated at -O1 from: |
| ; typedef struct { |
| ; unsigned long long c; |
| ; } S1; |
| ; struct S3 { |
| ; unsigned long long packed; |
| ; }; |
| ; struct S6 { |
| ; struct S0 *b; |
| ; }; |
| ; void f(struct S3 *a3) |
| ; { |
| ; struct S4 *s4 = (struct S4 *)(a3->packed + 0x1000UL); |
| ; struct S6 *myVar = (struct S6 *)s4; |
| ; struct S0 *b = myVar->b; |
| ; use(b); |
| ; } |
| ; |
| ; The debug info is attached to the ADD 4096 operation, which doesn't survive |
| ; instruction selection as it is folded into the load. As a result, we should |
| ; refer to s4 and myVar with complex expressions. |
| ; |
| ; NB: instruction referencing and DBG_VALUE modes produce debug insts in a |
| ; different order. |
| ; |
| ; CHECK: ![[S4:.*]] = !DILocalVariable(name: "s4", |
| ; CHECK: ![[MYVAR:.*]] = !DILocalVariable(name: "myVar", |
| ; CHECK: $rax = MOV64rm |
| ; INSTRREF-SAME: debug-instr-number 2, |
| ; INSTRREF-NEXT: DBG_INSTR_REF 2, 0, ![[S4]], |
| ; DBGVALUE-NEXT: DBG_VALUE $rax, $noreg, ![[MYVAR]], |
| ; CHECK-SAME: !DIExpression(DW_OP_plus_uconst, 4096, DW_OP_stack_value) |
| |
| ; INSTRREF: DBG_INSTR_REF 2, 0, ![[MYVAR]], |
| ; DBGVALUE: DBG_VALUE $rax, $noreg, ![[S4]], |
| ; CHECK-SAME: !DIExpression(DW_OP_plus_uconst, 4096, DW_OP_stack_value) |
| ; CHECK-NEXT: $rdi = MOV64rm killed renamable $rax, 1, $noreg, 4096, $noreg, |
| |
| source_filename = "test.c" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.13.0" |
| |
| %struct.S3 = type { i64 } |
| %struct.S4 = type opaque |
| %struct.S0 = type opaque |
| |
| ; Function Attrs: noinline nounwind ssp uwtable |
| define void @f(%struct.S3* nocapture readonly %a3) local_unnamed_addr #0 !dbg !6 { |
| entry: |
| tail call void @llvm.dbg.value(metadata %struct.S3* %a3, metadata !15, metadata !DIExpression()), !dbg !30 |
| %packed = getelementptr inbounds %struct.S3, %struct.S3* %a3, i64 0, i32 0, !dbg !31 |
| %0 = load i64, i64* %packed, align 8, !dbg !31 |
| %add = add i64 %0, 4096, !dbg !37 |
| %1 = inttoptr i64 %add to %struct.S4*, !dbg !38 |
| tail call void @llvm.dbg.value(metadata %struct.S4* %1, metadata !16, metadata !DIExpression()), !dbg !39 |
| tail call void @llvm.dbg.value(metadata %struct.S4* %1, metadata !17, metadata !DIExpression()), !dbg !40 |
| %b1 = bitcast %struct.S4* %1 to %struct.S0**, !dbg !41 |
| %2 = load %struct.S0*, %struct.S0** %b1, align 8, !dbg !41 |
| tail call void @llvm.dbg.value(metadata %struct.S0* %2, metadata !24, metadata !DIExpression()), !dbg !45 |
| %call = tail call i32 (%struct.S0*, ...) bitcast (i32 (...)* @use to i32 (%struct.S0*, ...)*)(%struct.S0* %2) #3, !dbg !46 |
| ret void, !dbg !47 |
| } |
| |
| declare i32 @use(...) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { noinline nounwind ssp uwtable } |
| attributes #2 = { nounwind readnone speculatable } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!25, !26, !27, !28} |
| !llvm.ident = !{!29} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 316467) (llvm/trunk 316466)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) |
| !1 = !DIFile(filename: "test.c", directory: "/") |
| !2 = !{} |
| !3 = !{!4, !18} |
| !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64) |
| !5 = !DICompositeType(tag: DW_TAG_structure_type, name: "S4", scope: !6, file: !1, line: 20, flags: DIFlagFwdDecl) |
| !6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 18, type: !7, isLocal: false, isDefinition: true, scopeLine: 19, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !14) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, !9} |
| !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64) |
| !10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S3", file: !1, line: 5, size: 64, elements: !11) |
| !11 = !{!12} |
| !12 = !DIDerivedType(tag: DW_TAG_member, name: "packed", scope: !10, file: !1, line: 6, baseType: !13, size: 64) |
| !13 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned) |
| !14 = !{!15, !16, !17, !24} |
| !15 = !DILocalVariable(name: "a3", arg: 1, scope: !6, file: !1, line: 18, type: !9) |
| !16 = !DILocalVariable(name: "s4", scope: !6, file: !1, line: 20, type: !4) |
| !17 = !DILocalVariable(name: "myVar", scope: !6, file: !1, line: 21, type: !18) |
| !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !19, size: 64) |
| !19 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S6", file: !1, line: 8, size: 64, elements: !20) |
| !20 = !{!21} |
| !21 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !19, file: !1, line: 9, baseType: !22, size: 64) |
| !22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !23, size: 64) |
| !23 = !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !1, line: 4, flags: DIFlagFwdDecl) |
| !24 = !DILocalVariable(name: "b", scope: !6, file: !1, line: 22, type: !22) |
| !25 = !{i32 2, !"Dwarf Version", i32 4} |
| !26 = !{i32 2, !"Debug Info Version", i32 3} |
| !27 = !{i32 1, !"wchar_size", i32 4} |
| !28 = !{i32 7, !"PIC Level", i32 2} |
| !29 = !{!"clang version 6.0.0 (trunk 316467) (llvm/trunk 316466)"} |
| !30 = !DILocation(line: 18, column: 14, scope: !6) |
| !31 = !DILocation(line: 20, column: 37, scope: !6) |
| !37 = !DILocation(line: 20, column: 44, scope: !6) |
| !38 = !DILocation(line: 20, column: 19, scope: !6) |
| !39 = !DILocation(line: 20, column: 14, scope: !6) |
| !40 = !DILocation(line: 21, column: 14, scope: !6) |
| !41 = !DILocation(line: 22, column: 25, scope: !6) |
| !45 = !DILocation(line: 22, column: 14, scope: !6) |
| !46 = !DILocation(line: 23, column: 3, scope: !6) |
| !47 = !DILocation(line: 24, column: 1, scope: !6) |