1c6b0f779f
This patch changes debugify to support debug variable records, and subsequently to no longer convert modules automatically to intrinsics when entering debugify.
82 lines
3.9 KiB
YAML
82 lines
3.9 KiB
YAML
# REQUIRES: x86-registered-target
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# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-check-debugify -o - %s 2>&1 | FileCheck %s
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# RUN: llc --experimental-debuginfo-iterators=false -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-check-debugify -o - %s 2>&1 | FileCheck %s
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--- |
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; ModuleID = 'check-line-and-variables.mir'
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source_filename = "check-line-and-variables.c"
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@ga = dso_local local_unnamed_addr global i32 2, align 4
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; Function Attrs: nofree norecurse nounwind uwtable writeonly
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define dso_local i32 @foo(i32 %a, i32 %b) local_unnamed_addr #0 !dbg !9 {
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entry:
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%add = add nsw i32 %b, %a, !dbg !15
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call void @llvm.dbg.value(metadata i32 %add, metadata !12, metadata !DIExpression()), !dbg !15
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%mul = shl nsw i32 %add, 1, !dbg !16
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call void @llvm.dbg.value(metadata i32 %mul, metadata !14, metadata !DIExpression()), !dbg !16
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store i32 %mul, ptr @ga, align 4, !dbg !17
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ret i32 %add, !dbg !18
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!llvm.dbg.cu = !{!3}
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!llvm.mir.debugify = !{!6, !7}
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!llvm.debugify = !{!8, !7}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git c0a922b3db2d39f36c0c01776cce90cc160a7d62)"}
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!3 = distinct !DICompileUnit(language: DW_LANG_C, file: !4, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5)
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!4 = !DIFile(filename: "main.mir", directory: "/")
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!5 = !{}
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!6 = !{i32 6}
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!7 = !{i32 2}
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!8 = !{i32 4}
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!9 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !4, line: 1, type: !10, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !3, retainedNodes: !11)
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!10 = !DISubroutineType(types: !5)
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!11 = !{!12, !14}
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!12 = !DILocalVariable(name: "1", scope: !9, file: !4, line: 1, type: !13)
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!13 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
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!14 = !DILocalVariable(name: "2", scope: !9, file: !4, line: 2, type: !13)
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!15 = !DILocation(line: 1, column: 1, scope: !9)
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!16 = !DILocation(line: 2, column: 1, scope: !9)
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!17 = !DILocation(line: 3, column: 1, scope: !9)
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!18 = !DILocation(line: 4, column: 1, scope: !9)
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...
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---
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name: foo
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body: |
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bb.0.entry:
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liveins: $edi, $esi
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%1:gr32 = COPY $esi, debug-location !15
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DBG_VALUE %1, $noreg, !12, !DIExpression(), debug-location !15
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; Let it missing !14 and debug-location !16
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; %0:gr32 = COPY $edi, debug-location !16
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; DBG_VALUE %0, $noreg, !14, !DIExpression(), debug-location !16
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%0:gr32 = COPY $edi
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%2:gr32 = nsw ADD32rr %1, %0, implicit-def dead $eflags, debug-location !17
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DBG_VALUE %2, $noreg, !12, !DIExpression(), debug-location !17
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DBG_VALUE $eflags, $noreg, !12, !DIExpression(), debug-location !17
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%3:gr32 = nsw ADD32rr %2, %2, implicit-def dead $eflags, debug-location !18
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DBG_VALUE %3, $noreg, !12, !DIExpression(), debug-location !18
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DBG_VALUE $eflags, $noreg, !12, !DIExpression(), debug-location !18
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MOV32mr $rip, 1, $noreg, @ga, $noreg, killed %3, debug-location !DILocation(line: 5, column: 1, scope: !9) :: (store (s32) into @ga, !tbaa !18)
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DBG_VALUE 0, $noreg, !12, !DIExpression(), debug-location !DILocation(line: 5, column: 1, scope: !9)
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; Let it miss Line 6: Change "!DILocation(line: 6, ..." to "!DILocation(line: 5, ..."
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$eax = COPY %2, debug-location !DILocation(line: 5, column: 1, scope: !9)
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DBG_VALUE $eax, $noreg, !12, !DIExpression(), debug-location !DILocation(line: 6, column: 1, scope: !9)
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RET 0, $eax, debug-location !DILocation(line: 7, column: 1, scope: !9)
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;CHECK: WARNING: Instruction with empty DebugLoc in function foo --%1:gr32 = COPY $edi
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;CHECK-NEXT: WARNING: Missing line 2
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;CHECK-NEXT: WARNING: Missing line 6
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;CHECK-NEXT: WARNING: Missing variable 2
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;CHECK-NEXT: Machine IR debug info check: FAIL
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...
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