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
87 lines
3.2 KiB
LLVM
87 lines
3.2 KiB
LLVM
; RUN: opt -passes=deadargelim -S < %s | FileCheck %s
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;test.c
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;int s;
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;
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;void f2(int k) __attribute__((noinline)) {
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; s++;
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; k = s;
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;}
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;
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;void f() __attribute__((noinline)) {
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; f2(4);
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;}
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;
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;int main()
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;{
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; f();
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; return 0;
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;}
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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@s = common dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
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; Function Attrs: noinline nounwind uwtable
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define dso_local void @f2(i32 %k) local_unnamed_addr !dbg !11 {
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entry:
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; CHECK: #dbg_value(i32 poison, !15, !DIExpression(), !16
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call void @llvm.dbg.value(metadata i32 %k, metadata !15, metadata !DIExpression()), !dbg !16
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%0 = load i32, ptr @s, align 4, !dbg !17
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%inc = add nsw i32 %0, 1, !dbg !17
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store i32 %inc, ptr @s, align 4, !dbg !17
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call void @llvm.dbg.value(metadata ptr @s, metadata !15, metadata !DIExpression(DW_OP_deref)), !dbg !16
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ret void, !dbg !18
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}
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; Function Attrs: noinline nounwind uwtable
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define dso_local void @f() local_unnamed_addr !dbg !19 {
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entry:
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; CHECK: tail call void @f2(i32 poison), !dbg !22
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tail call void @f2(i32 4), !dbg !22
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ret void, !dbg !23
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}
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; Function Attrs: nounwind uwtable
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define dso_local i32 @main() local_unnamed_addr !dbg !24 {
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entry:
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tail call void @f(), !dbg !27
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ret i32 0, !dbg !28
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9}
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!llvm.ident = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "test.c", directory: "/dir")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{!"clang version 7.0.0"}
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!11 = distinct !DISubprogram(name: "f2", scope: !3, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !14)
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!12 = !DISubroutineType(types: !13)
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!13 = !{null, !6}
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!14 = !{!15}
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!15 = !DILocalVariable(name: "k", arg: 1, scope: !11, file: !3, line: 3, type: !6)
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!16 = !DILocation(line: 3, column: 13, scope: !11)
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!17 = !DILocation(line: 4, column: 3, scope: !11)
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!18 = !DILocation(line: 6, column: 1, scope: !11)
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!19 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 8, type: !20, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !2, retainedNodes: !4)
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!20 = !DISubroutineType(types: !21)
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!21 = !{null}
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!22 = !DILocation(line: 9, column: 2, scope: !19)
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!23 = !DILocation(line: 10, column: 1, scope: !19)
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!24 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 12, type: !25, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: true, unit: !2, retainedNodes: !4)
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!25 = !DISubroutineType(types: !26)
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!26 = !{!6}
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!27 = !DILocation(line: 13, column: 2, scope: !24)
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!28 = !DILocation(line: 14, column: 2, scope: !24)
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