094572701d
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
89 lines
4.1 KiB
LLVM
89 lines
4.1 KiB
LLVM
; RUN: opt %s -S -passes=inline -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=inline -o - | FileCheck %s
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;; Check that all DIAssignID metadata that are inlined are replaced with new
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;; versions. Otherwise two inlined instances of an assignment will be considered
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;; to be the same assignment.
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;;
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;; $cat test.cpp
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;; __attribute__((always_inline))
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;; int get() { int val = 5; return val; }
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;; void fun() {
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;; get();
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;; get();
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;; }
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; CHECK-LABEL: _Z3funv
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;
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; CHECK: store i32 5, ptr %val.i, align 4{{.*}}, !DIAssignID [[ID_0:![0-9]+]]
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; CHECK-NEXT: #dbg_assign(i32 5, [[val:![0-9]+]], !DIExpression(), [[ID_0]], ptr %val.i, !DIExpression(), [[dl_inline_0:![0-9]+]]
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;
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; CHECK: store i32 5, ptr %val.i1, align 4{{.*}}, !DIAssignID [[ID_1:![0-9]+]]
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; CHECK-NEXT: #dbg_assign(i32 5, [[val]], !DIExpression(), [[ID_1]], ptr %val.i1, !DIExpression(), [[dl_inline_1:![0-9]+]]
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;
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; CHECK-DAG: [[val]] = !DILocalVariable(name: "val",
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; CHECK-DAG: [[dl_inline_0]] = !DILocation({{.*}}inlinedAt
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; CHECK-DAG: [[dl_inline_1]] = !DILocation({{.*}}inlinedAt
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; CHECK-DAG: [[ID_0]] = distinct !DIAssignID()
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; CHECK-DAG: [[ID_1]] = distinct !DIAssignID()
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define dso_local i32 @_Z3getv() !dbg !7 {
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entry:
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%val = alloca i32, align 4, !DIAssignID !13
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call void @llvm.dbg.assign(metadata i1 undef, metadata !12, metadata !DIExpression(), metadata !13, metadata ptr %val, metadata !DIExpression()), !dbg !14
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%0 = bitcast ptr %val to ptr, !dbg !15
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call void @llvm.lifetime.start.p0(i64 4, ptr %0), !dbg !15
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store i32 5, ptr %val, align 4, !dbg !16, !DIAssignID !21
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call void @llvm.dbg.assign(metadata i32 5, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr %val, metadata !DIExpression()), !dbg !14
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%1 = load i32, ptr %val, align 4, !dbg !22
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%2 = bitcast ptr %val to ptr, !dbg !23
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call void @llvm.lifetime.end.p0(i64 4, ptr %2), !dbg !23
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ret i32 %1, !dbg !24
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}
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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; Function Attrs: nounwind uwtable mustprogress
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define dso_local void @_Z3funv() !dbg !25 {
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entry:
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%call = call i32 @_Z3getv(), !dbg !28
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%call1 = call i32 @_Z3getv(), !dbg !29
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ret void, !dbg !30
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !1000}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 12.0.0"}
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!7 = distinct !DISubprogram(name: "get", linkageName: "_Z3getv", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12}
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!12 = !DILocalVariable(name: "val", scope: !7, file: !1, line: 2, type: !10)
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!13 = distinct !DIAssignID()
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!14 = !DILocation(line: 0, scope: !7)
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!15 = !DILocation(line: 2, column: 13, scope: !7)
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!16 = !DILocation(line: 2, column: 17, scope: !7)
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!21 = distinct !DIAssignID()
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!22 = !DILocation(line: 2, column: 33, scope: !7)
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!23 = !DILocation(line: 2, column: 38, scope: !7)
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!24 = !DILocation(line: 2, column: 26, scope: !7)
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!25 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 3, type: !26, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!26 = !DISubroutineType(types: !27)
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!27 = !{null}
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!28 = !DILocation(line: 4, column: 3, scope: !25)
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!29 = !DILocation(line: 5, column: 3, scope: !25)
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!30 = !DILocation(line: 6, column: 1, scope: !25)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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