| ; RUN: llc %s -stop-after=finalize-isel -o - \ |
| ; RUN: | FileCheck %s --implicit-check-not=DBG_ |
| |
| |
| ; RUN: llc --try-experimental-debuginfo-iterators %s -stop-after=finalize-isel -o - \ |
| ; RUN: | FileCheck %s --implicit-check-not=DBG_ |
| |
| ;; Hand-written to test assignment tracking analysis' removal of redundant |
| ;; debug loc definitions. Checks written inline. |
| |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define dso_local void @f() #0 !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 0, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)), !dbg !15 |
| call void @llvm.dbg.value(metadata i64 1, metadata !14, metadata !DIExpression()), !dbg !15 |
| ;; def [0 -> 32) |
| ;; def [0 -> 64) |
| ;; Second frag fully contains the first so first should be removed. |
| ; CHECK: DBG_VALUE 1, |
| call void @step() |
| call void @llvm.dbg.value(metadata i32 2, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)), !dbg !15 |
| call void @llvm.dbg.value(metadata i32 3, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32)), !dbg !15 |
| ;; def [0 -> 32) |
| ;; def [32 -> 64) |
| ;; Frags don't overlap so no removal should take place: |
| ; CHECK: DBG_VALUE 2, |
| ; CHECK-NEXT: DBG_VALUE 3, |
| call void @step() |
| call void @llvm.dbg.value(metadata i16 4, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !15 |
| call void @llvm.dbg.value(metadata i8 5, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 8, 8)), !dbg !15 |
| ;; def [0 -> 16) |
| ;; def [8 -> 16) |
| ;; Second frag doesn't fully contain first so no removal should take place: |
| ; CHECK: DBG_VALUE 4, |
| ; CHECK-NEXT: DBG_VALUE 5, |
| call void @step() |
| call void @llvm.dbg.value(metadata i16 6, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !15 |
| call void @llvm.dbg.value(metadata i8 7, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 8, 8)), !dbg !15 |
| call void @llvm.dbg.value(metadata i32 8, metadata !14, metadata !DIExpression(DW_OP_LLVM_fragment, 8, 16)), !dbg !15 |
| ;; def [0 -> 16) |
| ;; def [8 -> 16) |
| ;; def [8 -> 24) |
| ;; Middle frag is fully contained by the last so should be removed. |
| ; CHECK: DBG_VALUE 6, |
| ; CHECK-NEXT: DBG_VALUE 8, |
| ret void |
| } |
| |
| declare void @step() |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3, !4, !5, !6, !1000} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "test.cpp", directory: "/") |
| !2 = !{i32 7, !"Dwarf Version", i32 5} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"wchar_size", i32 4} |
| !5 = !{i32 7, !"uwtable", i32 1} |
| !6 = !{i32 7, !"frame-pointer", i32 2} |
| !7 = !{!"clang version 14.0.0"} |
| !8 = distinct !DISubprogram(name: "f", linkageName: "_Z1fl", scope: !1, file: !1, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!11, !11} |
| !11 = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) |
| !12 = !{} |
| !13 = distinct !DIAssignID() |
| !14 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 1, type: !11) |
| !15 = !DILocation(line: 0, scope: !8) |
| !16 = distinct !DIAssignID() |
| !1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true} |