be5c96bfac
MSVC always emits minimal CodeView metadata with compiler information, even when debug info is otherwise disabled. Other tools may rely on this metadata being present. For example, linkers use it to determine whether hotpatching is enabled for the object file.
40 lines
1.3 KiB
LLVM
40 lines
1.3 KiB
LLVM
; RUN: llc -filetype=obj -o - < %s | llvm-readobj --codeview - | FileCheck %s
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; Check that only basic compiler info is emitted for CodeView with emissionKind NoDebug
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; CHECK-NOT: CodeViewTypes
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; CHECK: CodeViewDebugInfo [
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; CHECK-NEXT: Section: .debug$S (4)
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; CHECK-NEXT: Magic: 0x4
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; CHECK-NEXT: Subsection [
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; CHECK-NEXT: SubSectionType: Symbols (0xF1)
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; CHECK-NEXT: SubSectionSize: 0x2C
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; CHECK-NEXT: ObjNameSym {
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; CHECK-NEXT: Kind: S_OBJNAME (0x1101)
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; CHECK-NEXT: Signature: 0x0
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; CHECK-NEXT: ObjectName:
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; CHECK-NEXT: }
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; CHECK-NEXT: Compile3Sym {
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; CHECK-NEXT: Kind: S_COMPILE3 (0x113C)
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; CHECK-NEXT: Language: C (0x0)
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; CHECK-NEXT: Flags [ (0x0)
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; CHECK-NEXT: ]
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; CHECK-NEXT: Machine: X64 (0xD0)
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; CHECK-NEXT: FrontendVersion:
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; CHECK-NEXT: BackendVersion:
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; CHECK-NEXT: VersionName: clang
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; CHECK-NEXT: }
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; CHECK-NEXT: ]
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; CHECK-NEXT: ]
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source_filename = "empty"
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24215"
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "clang", emissionKind: NoDebug)
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!1 = !DIFile(filename: "empty", directory: "path/to")
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!2 = !{i32 2, !"CodeView", i32 1}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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