| # REQUIRES: x86-registered-target |
| # RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-check-debugify -o - %s 2>&1 | FileCheck %s |
| --- | |
| ; ModuleID = 'check-line-and-variables.mir' |
| source_filename = "check-line-and-variables.c" |
| |
| @ga = dso_local local_unnamed_addr global i32 2, align 4 |
| |
| ; Function Attrs: nofree norecurse nounwind uwtable writeonly |
| define dso_local i32 @foo(i32 %a, i32 %b) local_unnamed_addr #0 !dbg !9 { |
| entry: |
| %add = add nsw i32 %b, %a, !dbg !15 |
| call void @llvm.dbg.value(metadata i32 %add, metadata !12, metadata !DIExpression()), !dbg !15 |
| %mul = shl nsw i32 %add, 1, !dbg !16 |
| call void @llvm.dbg.value(metadata i32 %mul, metadata !14, metadata !DIExpression()), !dbg !16 |
| store i32 %mul, i32* @ga, align 4, !dbg !17 |
| ret i32 %add, !dbg !18 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| !llvm.module.flags = !{!0, !1} |
| !llvm.ident = !{!2} |
| !llvm.dbg.cu = !{!3} |
| !llvm.mir.debugify = !{!6, !7} |
| !llvm.debugify = !{!8, !7} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 2, !"Debug Info Version", i32 3} |
| !2 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git c0a922b3db2d39f36c0c01776cce90cc160a7d62)"} |
| !3 = distinct !DICompileUnit(language: DW_LANG_C, file: !4, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5) |
| !4 = !DIFile(filename: "main.mir", directory: "/") |
| !5 = !{} |
| !6 = !{i32 6} |
| !7 = !{i32 2} |
| !8 = !{i32 4} |
| !9 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !4, line: 1, type: !10, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !3, retainedNodes: !11) |
| !10 = !DISubroutineType(types: !5) |
| !11 = !{!12, !14} |
| !12 = !DILocalVariable(name: "1", scope: !9, file: !4, line: 1, type: !13) |
| !13 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned) |
| !14 = !DILocalVariable(name: "2", scope: !9, file: !4, line: 2, type: !13) |
| !15 = !DILocation(line: 1, column: 1, scope: !9) |
| !16 = !DILocation(line: 2, column: 1, scope: !9) |
| !17 = !DILocation(line: 3, column: 1, scope: !9) |
| !18 = !DILocation(line: 4, column: 1, scope: !9) |
| |
| ... |
| --- |
| name: foo |
| body: | |
| bb.0.entry: |
| liveins: $edi, $esi |
| |
| %1:gr32 = COPY $esi, debug-location !15 |
| DBG_VALUE %1, $noreg, !12, !DIExpression(), debug-location !15 |
| ; Let it missing !14 and debug-location !16 |
| ; %0:gr32 = COPY $edi, debug-location !16 |
| ; DBG_VALUE %0, $noreg, !14, !DIExpression(), debug-location !16 |
| %0:gr32 = COPY $edi |
| %2:gr32 = nsw ADD32rr %1, %0, implicit-def dead $eflags, debug-location !17 |
| DBG_VALUE %2, $noreg, !12, !DIExpression(), debug-location !17 |
| DBG_VALUE $eflags, $noreg, !12, !DIExpression(), debug-location !17 |
| %3:gr32 = nsw ADD32rr %2, %2, implicit-def dead $eflags, debug-location !18 |
| DBG_VALUE %3, $noreg, !12, !DIExpression(), debug-location !18 |
| DBG_VALUE $eflags, $noreg, !12, !DIExpression(), debug-location !18 |
| MOV32mr $rip, 1, $noreg, @ga, $noreg, killed %3, debug-location !DILocation(line: 5, column: 1, scope: !9) :: (store 4 into @ga, !tbaa !18) |
| DBG_VALUE 0, $noreg, !12, !DIExpression(), debug-location !DILocation(line: 5, column: 1, scope: !9) |
| ; Let it miss Line 6: Change "!DILocation(line: 6, ..." to "!DILocation(line: 5, ..." |
| $eax = COPY %2, debug-location !DILocation(line: 5, column: 1, scope: !9) |
| DBG_VALUE $eax, $noreg, !12, !DIExpression(), debug-location !DILocation(line: 6, column: 1, scope: !9) |
| RET 0, $eax, debug-location !DILocation(line: 7, column: 1, scope: !9) |
| |
| ;CHECK: WARNING: Instruction with empty DebugLoc in function foo --%1:gr32 = COPY $edi |
| ;CHECK-NEXT: WARNING: Missing line 2 |
| ;CHECK-NEXT: WARNING: Missing line 6 |
| ;CHECK-NEXT: WARNING: Missing variable 2 |
| ;CHECK-NEXT: Machine IR debug info check: FAIL |
| |
| ... |