This patch makes the final major change of the RemoveDIs project, changing the default IR output from debug intrinsics to debug records. This is expected to break a large number of tests: every single one that tests for uses or declarations of debug intrinsics and does not explicitly disable writing records. If this patch has broken your downstream tests (or upstream tests on a configuration I wasn't able to run): 1. If you need to immediately unblock a build, pass `--write-experimental-debuginfo=false` to LLVM's option processing for all failing tests (remember to use `-mllvm` for clang/flang to forward arguments to LLVM). 2. For most test failures, the changes are trivial and mechanical, enough that they can be done by script; see the migration guide for a guide on how to do this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates 3. If any tests fail for reasons other than FileCheck check lines that need updating, such as assertion failures, that is most likely a real bug with this patch and should be reported as such. For more information, see the recent PSA: https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
118 lines
5.3 KiB
LLVM
118 lines
5.3 KiB
LLVM
; RUN: opt -passes='require<profile-summary>,function(codegenprepare)' -S %s -o - | FileCheck %s
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; typedef struct info {
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; unsigned long long size;
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; } info_t;
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; extern unsigned p;
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; extern unsigned n;
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; void f() {
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; unsigned int i;
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; if (p) {
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; info_t *info = (info_t *)p;
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; for (i = 0; i < n; i++)
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; use(info[i].size);
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; }
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; }
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source_filename = "debug.i"
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target datalayout = "e-m:o-p:32:32-i64:64-a:0:32-n32-S128"
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target triple = "thumbv7k-apple-ios10.0.0"
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%struct.info = type { i64 }
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@p = external local_unnamed_addr global i32, align 4
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@n = external local_unnamed_addr global i32, align 4
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; Function Attrs: nounwind ssp uwtable
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define void @f() local_unnamed_addr #0 !dbg !16 {
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entry:
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%0 = load i32, ptr @p, align 4, !dbg !25
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%tobool = icmp eq i32 %0, 0, !dbg !25
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br i1 %tobool, label %if.end, label %if.then, !dbg !26
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if.then: ; preds = %entry
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%1 = inttoptr i32 %0 to ptr, !dbg !27
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tail call void @llvm.dbg.value(metadata ptr %1, metadata !22, metadata !DIExpression()), !dbg !28
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; CHECK: #dbg_value(i32 %0, !22, !DIExpression(),
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tail call void @llvm.dbg.value(metadata i32 0, metadata !20, metadata !DIExpression()), !dbg !29
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%2 = load i32, ptr @n, align 4, !dbg !30
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%cmp5 = icmp eq i32 %2, 0, !dbg !33
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br i1 %cmp5, label %if.end, label %for.body.preheader, !dbg !34
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for.body.preheader: ; preds = %if.then
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; CHECK: for.body.preheader:
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; CHECK: %2 = inttoptr i32 %0 to ptr
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br label %for.body, !dbg !35
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for.body: ; preds = %for.body.preheader, %for.body
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%lsr.iv = phi ptr [ %1, %for.body.preheader ], [ %scevgep, %for.body ]
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%i.06 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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tail call void @llvm.dbg.value(metadata i32 %i.06, metadata !20, metadata !DIExpression()), !dbg !29
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%3 = load i64, ptr %lsr.iv, align 8, !dbg !35
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%call = tail call i32 @use(i64 %3) #3, !dbg !36
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%inc = add nuw i32 %i.06, 1, !dbg !37
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tail call void @llvm.dbg.value(metadata i32 %inc, metadata !20, metadata !DIExpression()), !dbg !29
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%4 = load i32, ptr @n, align 4, !dbg !30
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%scevgep = getelementptr %struct.info, ptr %lsr.iv, i32 1, !dbg !33
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%cmp = icmp ult i32 %inc, %4, !dbg !33
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br i1 %cmp, label %for.body, label %if.end.loopexit, !dbg !34, !llvm.loop !38
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if.end.loopexit: ; preds = %for.body
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br label %if.end, !dbg !40
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if.end: ; preds = %if.end.loopexit, %if.then, %entry
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ret void, !dbg !40
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}
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declare i32 @use(...) local_unnamed_addr #1
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { nounwind ssp uwtable }
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attributes #2 = { nounwind readnone speculatable }
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attributes #3 = { nobuiltin nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11, !12, !13, !14}
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!llvm.ident = !{!15}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 317231) (llvm/trunk 317262)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
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!1 = !DIFile(filename: "debug.i", directory: "/Data/radar/35321562")
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!2 = !{}
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!3 = !{!4}
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!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 32)
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!5 = !DIDerivedType(tag: DW_TAG_typedef, name: "info_t", file: !1, line: 3, baseType: !6)
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "info", file: !1, line: 1, size: 64, elements: !7)
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!7 = !{!8}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !6, file: !1, line: 2, baseType: !9, size: 64)
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!9 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!10 = !{i32 2, !"Dwarf Version", i32 4}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{i32 1, !"wchar_size", i32 4}
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!13 = !{i32 1, !"min_enum_size", i32 4}
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!14 = !{i32 7, !"PIC Level", i32 2}
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!15 = !{!"clang version 6.0.0 (trunk 317231) (llvm/trunk 317262)"}
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!16 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 6, type: !17, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !0, retainedNodes: !19)
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!17 = !DISubroutineType(types: !18)
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!18 = !{null}
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!19 = !{!20, !22}
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!20 = !DILocalVariable(name: "i", scope: !16, file: !1, line: 7, type: !21)
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!21 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
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!22 = !DILocalVariable(name: "info", scope: !23, file: !1, line: 9, type: !4)
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!23 = distinct !DILexicalBlock(scope: !24, file: !1, line: 8, column: 10)
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!24 = distinct !DILexicalBlock(scope: !16, file: !1, line: 8, column: 7)
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!25 = !DILocation(line: 8, column: 7, scope: !24)
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!26 = !DILocation(line: 8, column: 7, scope: !16)
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!27 = !DILocation(line: 9, column: 20, scope: !23)
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!28 = !DILocation(line: 9, column: 13, scope: !23)
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!29 = !DILocation(line: 7, column: 16, scope: !16)
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!30 = !DILocation(line: 10, column: 21, scope: !31)
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!31 = distinct !DILexicalBlock(scope: !32, file: !1, line: 10, column: 5)
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!32 = distinct !DILexicalBlock(scope: !23, file: !1, line: 10, column: 5)
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!33 = !DILocation(line: 10, column: 19, scope: !31)
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!34 = !DILocation(line: 10, column: 5, scope: !32)
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!35 = !DILocation(line: 11, column: 19, scope: !31)
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!36 = !DILocation(line: 11, column: 7, scope: !31)
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!37 = !DILocation(line: 10, column: 25, scope: !31)
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!38 = distinct !{!38, !34, !39}
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!39 = !DILocation(line: 11, column: 23, scope: !32)
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!40 = !DILocation(line: 13, column: 1, scope: !16)
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