379628d446
This patch adds a new flag: `--preserve-input-debuginfo-format` This flag instructs the tool to not convert the debug info format (intrinsics/records) of input IR, but to instead determine the format of the input IR and overwrite the other format-determining flags so that we process and output the file in the same format that we received it in. This flag is turned off by llvm-link, llvm-lto, and llvm-lto2, and should be turned off by any other tool that expects to parse multiple IR modules and have their debug info formats match. The motivation for this flag is to allow tools to not convert the debug info format - verify-uselistorder and llvm-reduce, and any downstream tools that seek to test or mutate IR as-is, without applying extraneous modifications to the input. This is a necessary step to using debug records by default in all (other) LLVM tools.
102 lines
6.4 KiB
LLVM
102 lines
6.4 KiB
LLVM
;; Test that we can write in the old debug info format.
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; RUN: opt --passes=verify -S --write-experimental-debuginfo=false < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,OLDDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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;; Test that we can write in the new debug info format...
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; RUN: opt --passes=verify -S --write-experimental-debuginfo=true < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,NEWDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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;; ...and then read the new format and write the old format.
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; RUN: opt --passes=verify -S --write-experimental-debuginfo=true < %s \
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; RUN: | opt --passes=verify -S --write-experimental-debuginfo=false \
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; RUN: | FileCheck %s --check-prefixes=CHECK,OLDDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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;; Test also that the new flag is independent of the flag that enables use of
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;; these non-instruction debug info during LLVM passes.
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; RUN: opt --passes=verify -S --try-experimental-debuginfo-iterators --write-experimental-debuginfo=false < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,OLDDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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; RUN: opt --passes=verify -S --try-experimental-debuginfo-iterators --write-experimental-debuginfo=true < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,NEWDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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;; Test that the preserving flag overrides the write flag.
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; RUN: opt --passes=verify -S --preserve-input-debuginfo-format=true --write-experimental-debuginfo=true < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,OLDDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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; RUN: opt --passes=verify -S --write-experimental-debuginfo=true < %s \
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; RUN: | opt --passes=verify -S --preserve-input-debuginfo-format=true --write-experimental-debuginfo=false \
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; RUN: | FileCheck %s --check-prefixes=CHECK,NEWDBG --implicit-check-not=llvm.dbg --implicit-check-not=#dbg
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; CHECK: @f(i32 %[[VAL_A:[0-9a-zA-Z]+]])
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; CHECK-NEXT: entry:
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; OLDDBG-NEXT: call void @llvm.dbg.value(metadata i32 %[[VAL_A]], metadata ![[VAR_A:[0-9]+]], metadata !DIExpression()), !dbg ![[LOC_1:[0-9]+]]
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; NEWDBG-NEXT: {{^}} #dbg_value(i32 %[[VAL_A]], ![[VAR_A:[0-9]+]], !DIExpression(), ![[LOC_1:[0-9]+]])
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; CHECK-NEXT: {{^}} %[[VAL_B:[0-9a-zA-Z]+]] = alloca
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; OLDDBG-NEXT: call void @llvm.dbg.declare(metadata ptr %[[VAL_B]], metadata ![[VAR_B:[0-9]+]], metadata !DIExpression()), !dbg ![[LOC_2:[0-9]+]]
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; NEWDBG-NEXT: {{^}} #dbg_declare(ptr %[[VAL_B]], ![[VAR_B:[0-9]+]], !DIExpression(), ![[LOC_2:[0-9]+]])
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; CHECK-NEXT: {{^}} %[[VAL_ADD:[0-9a-zA-Z]+]] = add i32 %[[VAL_A]], 5
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; OLDDBG-NEXT: call void @llvm.dbg.value(metadata !DIArgList(i32 %[[VAL_A]], i32 %[[VAL_ADD]]), metadata ![[VAR_A]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus)), !dbg ![[LOC_3:[0-9]+]]
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; NEWDBG-NEXT: {{^}} #dbg_value(!DIArgList(i32 %[[VAL_A]], i32 %[[VAL_ADD]]), ![[VAR_A]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus), ![[LOC_3:[0-9]+]])
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; OLDDBG-NEXT: call void @llvm.dbg.label(metadata ![[LABEL_ID:[0-9]+]]), !dbg ![[LOC_3]]
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; NEWDBG-NEXT: {{^}} #dbg_label(![[LABEL_ID:[0-9]+]], ![[LOC_3]])
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; CHECK-NEXT: {{^}} store i32 %[[VAL_ADD]]{{.+}}, !DIAssignID ![[ASSIGNID:[0-9]+]]
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; OLDDBG-NEXT: call void @llvm.dbg.assign(metadata i32 %[[VAL_ADD]], metadata ![[VAR_B]], metadata !DIExpression(), metadata ![[ASSIGNID]], metadata ptr %[[VAL_B]], metadata !DIExpression()), !dbg ![[LOC_4:[0-9]+]]
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; NEWDBG-NEXT: {{^}} #dbg_assign(i32 %[[VAL_ADD]], ![[VAR_B]], !DIExpression(), ![[ASSIGNID]], ptr %[[VAL_B]], !DIExpression(), ![[LOC_4:[0-9]+]])
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; CHECK-NEXT: {{^}} ret i32
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; OLDDBG-DAG: declare void @llvm.dbg.value
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; OLDDBG-DAG: declare void @llvm.dbg.declare
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; OLDDBG-DAG: declare void @llvm.dbg.assign
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; OLDDBG-DAG: declare void @llvm.dbg.label
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; CHECK-DAG: llvm.dbg.cu
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; CHECK-DAG: ![[VAR_A]] = !DILocalVariable(name: "a"
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; CHECK-DAG: ![[VAR_B]] = !DILocalVariable(name: "b"
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; CHECK-DAG: ![[LOC_1]] = !DILocation(line: 3, column: 15
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; CHECK-DAG: ![[LOC_2]] = !DILocation(line: 3, column: 20
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; CHECK-DAG: ![[LOC_3]] = !DILocation(line: 3, column: 25
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; CHECK-DAG: ![[LOC_4]] = !DILocation(line: 3, column: 30
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; CHECK-DAG: ![[LABEL_ID]] = !DILabel(
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define dso_local i32 @f(i32 %a) !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata i32 %a, metadata !20, metadata !DIExpression()), !dbg !30
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%b = alloca i32, !dbg !30, !DIAssignID !40
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call void @llvm.dbg.declare(metadata ptr %b, metadata !21, metadata !DIExpression()), !dbg !31
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%add = add i32 %a, 5, !dbg !31
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call void @llvm.dbg.value(metadata !DIArgList(i32 %a, i32 %add), metadata !20, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus)), !dbg !32
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call void @llvm.dbg.label(metadata !50), !dbg !32
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store i32 %add, ptr %b, !dbg !32, !DIAssignID !40
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call void @llvm.dbg.assign(metadata i32 %add, metadata !21, metadata !DIExpression(), metadata !40, metadata ptr %b, metadata !DIExpression()), !dbg !33
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ret i32 %add, !dbg !33
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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declare void @llvm.dbg.label(metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 18.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "print.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 5}
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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 18.0.0"}
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!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !13)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!12, !12}
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !{!20, !21}
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!20 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 3, type: !12)
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!21 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 3, type: !12)
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!30 = !DILocation(line: 3, column: 15, scope: !7)
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!31 = !DILocation(line: 3, column: 20, scope: !7)
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!32 = !DILocation(line: 3, column: 25, scope: !7)
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!33 = !DILocation(line: 3, column: 30, scope: !7)
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!40 = distinct !DIAssignID()
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!50 = !DILabel(scope: !7, name: "label", file: !1, line: 3) |