If the "CodeView" module flag is set, emit codeview instead of DWARF

[rnk]

Summary

Emit both DWARF and CodeView if "CodeView" and "Dwarf Version" module
flags are set.

[rnk]

I think this got dropped during the mailing list shakeup.

[majnemer]

LGTM

include/llvm/IR/Module.h

 
 /// @}
 /// @name Utility functions for querying Debug information.
 /// @{
 
   /// \brief Returns the Dwarf Version by checking module flags.
   unsigned getDwarfVersion() const;
 
+  /// \brief Returns the CodeView Version by checking module flags.
+  /// Returns zero if not present in module.
+  unsigned getCodeViewFlag() const;
+
 /// @}
 /// @name Utility functions for querying and setting PIC level
 /// @{
 
   /// \brief Returns the PIC level (small or large model)
   PICLevel::Level getPICLevel() const;
 
   /// \brief Set the PIC level (small or large model)

lib/CodeGen/AsmPrinter/AsmPrinter.cpp

if (!M.getModuleInlineAsm().empty()) {
     OutStreamer->AddComment("Start of file scope inline assembly");
     OutStreamer->AddBlankLine();
     EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI, TM.Options.MCOptions);
     OutStreamer->AddComment("End of file scope inline assembly");
     OutStreamer->AddBlankLine();
   }
 
   if (MAI->doesSupportDebugInformation()) {
-    bool skip_dwarf = false;
-    if (TM.getTargetTriple().isKnownWindowsMSVCEnvironment()) {
+    bool EmitCodeView = MMI->getModule()->getCodeViewFlag();
+    if (EmitCodeView && TM.getTargetTriple().isKnownWindowsMSVCEnvironment()) {
       Handlers.push_back(HandlerInfo(new WinCodeViewLineTables(this),
                                      DbgTimerName,
                                      CodeViewLineTablesGroupName));
-      // FIXME: Don't emit DWARF debug info if there's at least one function
-      // with AddressSanitizer instrumentation.
-      // This is a band-aid fix for PR22032.
-      for (auto &F : M.functions()) {
-        if (F.hasFnAttribute(Attribute::SanitizeAddress)) {
-          skip_dwarf = true;
-          break;
-        }
-      }
     }
-    if (!skip_dwarf) {
+    if (!EmitCodeView || MMI->getModule()->getDwarfVersion()) {
       DD = new DwarfDebug(this, &M);
       Handlers.push_back(HandlerInfo(DD, DbgTimerName, DWARFGroupName));
     }
   }
 
   EHStreamer *ES = nullptr;
   switch (MAI->getExceptionHandlingType()) {
   case ExceptionHandling::None:

lib/CodeGen/AsmPrinter/DwarfDebug.cpp

DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
   if (DwarfPubSections == Default)
     HasDwarfPubSections = tuneForGDB();
   else
     HasDwarfPubSections = DwarfPubSections == Enable;
 
   unsigned DwarfVersionNumber = Asm->TM.Options.MCOptions.DwarfVersion;
   DwarfVersion = DwarfVersionNumber ? DwarfVersionNumber
                                     : MMI->getModule()->getDwarfVersion();
+  // Use dwarf 4 by default if nothing is requested.
+  DwarfVersion = DwarfVersion ? DwarfVersion : dwarf::DWARF_VERSION;
 
   // Work around a GDB bug. GDB doesn't support the standard opcode;
   // SCE doesn't support GNU's; LLDB prefers the standard opcode, which
   // is defined as of DWARF 3.
   // See GDB bug 11616 - DW_OP_form_tls_address is unimplemented
   // https://sourceware.org/bugzilla/show_bug.cgi?id=11616
   UseGNUTLSOpcode = tuneForGDB() || DwarfVersion < 3;
 

lib/IR/Module.cpp

void Module::dropAllReferences() {
 
   for (GlobalAlias &GA : aliases())
     GA.dropAllReferences();
 }
 
 unsigned Module::getDwarfVersion() const {
   auto *Val = cast_or_null<ConstantAsMetadata>(getModuleFlag("Dwarf Version"));
   if (!Val)
-    return dwarf::DWARF_VERSION;
+    return 0;
+  return cast<ConstantInt>(Val->getValue())->getZExtValue();
+}
+
+unsigned Module::getCodeViewFlag() const {
+  auto *Val = cast_or_null<ConstantAsMetadata>(getModuleFlag("CodeView"));
+  if (!Val)
+    return 0;
   return cast<ConstantInt>(Val->getValue())->getZExtValue();
 }
 
 Comdat *Module::getOrInsertComdat(StringRef Name) {
   auto &Entry = *ComdatSymTab.insert(std::make_pair(Name, Comdat())).first;
   Entry.second.Name = &Entry;
   return &Entry.second;
 }

test/DebugInfo/COFF/asan-module-ctor.ll

 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
 !1 = !DIFile(filename: "asan.c", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4}
 !4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 ()* @foo, variables: !2)
 !5 = !DIFile(filename: "asan.c", directory: "D:C")
 !6 = !DISubroutineType(types: !2)
-!7 = !{i32 2, !"Dwarf Version", i32 4}
+!7 = !{i32 2, !"CodeView", i32 1}
 !8 = !{i32 1, !"Debug Info Version", i32 3}
 !9 = !{!"clang version 3.5.0 "}
 !10 = !DILocation(line: 2, scope: !4)

test/DebugInfo/COFF/asan-module-without-functions.ll

 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!3, !4}
 !llvm.ident = !{!5}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "asan.c", directory: "D:\5C")
 !2 = !{}
-!3 = !{i32 2, !"Dwarf Version", i32 4}
+!3 = !{i32 2, !"CodeView", i32 1}
 !4 = !{i32 1, !"Debug Info Version", i32 3}
 !5 = !{!"clang version 3.5.0 "}

test/DebugInfo/COFF/asm.ll

 
 ; X86-LABEL: _f:
 ; X86:      # BB
 ; X86-NEXT: [[ASM_LINE:^L.*]]:{{$}}
 ; X86:      [[CALL_LINE:^L.*]]:{{$}}
 ; X86:      calll   _g
 ; X86-NEXT: [[RETURN_STMT:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_F:^L.*]]:
 ;
 ; X86-LABEL: .section        .debug$S,"dr"
 ; X86-NEXT: .long   4
 ; Symbol subsection
 ; X86-NEXT: .long   241
 ; X86-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X86-NEXT: [[F1_START]]:

 ; X64:      # BB
 ; X64:      subq    $40, %rsp
 ; X64-NEXT: [[ASM_LINE:.*]]:{{$}}
 ; X64:      [[CALL_LINE:.*]]:{{$}}
 ; X64:      callq   g
 ; X64-NEXT: [[EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_F:.*]]:
 ;
 ; X64-LABEL: .section        .debug$S,"dr"
 ; X64-NEXT: .long   4
 ; Symbol subsection
 ; X64-NEXT: .long   241
 ; X64-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X64-NEXT: [[F1_START]]:

 !1 = !DIFile(filename: "<unknown>", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4}
 !4 = !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @f, variables: !2)
 !5 = !DIFile(filename: "asm.c", directory: "D:\5C")
 !6 = !DIFile(filename: "asm.c", directory: "D:C")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null}
-!9 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 2, !"CodeView", i32 1}
 !10 = !{i32 1, !"Debug Info Version", i32 3}
 !11 = !{!"clang version 3.5 "}
 !12 = !DILocation(line: 4, scope: !4)
 !13 = !DILocation(line: 5, scope: !4)
 !14 = !DILocation(line: 6, scope: !4)

test/DebugInfo/COFF/cpp-mangling.ll

 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
 !1 = !DIFile(filename: "<stdin>", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4}
 !4 = !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !5, scope: !6, type: !7, function: i32 (i32)* @"\01?bar@foo@@YAHH@Z", variables: !2)
 !5 = !DIFile(filename: "src.cpp", directory: "D:\5C")
 !6 = !DIFile(filename: "src.cpp", directory: "D:C")
 !7 = !DISubroutineType(types: !2)
-!8 = !{i32 2, !"Dwarf Version", i32 4}
+!8 = !{i32 2, !"CodeView", i32 1}
 !9 = !{i32 2, !"Debug Info Version", i32 3}
 !10 = !{!"clang version 3.6.0 "}
 !11 = !DILocation(line: 3, scope: !4)

test/DebugInfo/COFF/multifile.ll

 ; X86-NEXT: [[CALL_LINE_1:.*]]:{{$}}
 ; X86:      calll   _g
 ; X86-NEXT: [[CALL_LINE_2:.*]]:{{$}}
 ; X86:      calll   _g
 ; X86-NEXT: [[CALL_LINE_3:.*]]:{{$}}
 ; X86:      calll   _g
 ; X86-NEXT: [[RETURN_STMT:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_F:.*]]:
 ;
 ; X86-LABEL: .section        .debug$S,"dr"
 ; X86-NEXT: .long   4
 ; Symbol subsection
 ; X86-NEXT: .long   241
 ; X86-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X86-NEXT: [[F1_START]]:

 ; X64:      callq   g
 ; X64-NEXT: [[CALL_LINE_2:.*]]:{{$}}
 ; X64:      callq   g
 ; X64-NEXT: [[CALL_LINE_3:.*]]:{{$}}
 ; X64:      callq   g
 ; X64-NEXT: [[EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_F:.*]]:
 ;
 ; X64-LABEL: .section        .debug$S,"dr"
 ; X64-NEXT: .long   4
 ; Symbol subsection
 ; X64-NEXT: .long   241
 ; X64-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X64-NEXT: [[F1_START]]:

 !1 = !DIFile(filename: "<unknown>", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4}
 !4 = !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @f, variables: !2)
 !5 = !DIFile(filename: "input.c", directory: "D:\5C")
 !6 = !DIFile(filename: "input.c", directory: "D:C")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null}
-!9 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 2, !"CodeView", i32 1}
 !10 = !{i32 1, !"Debug Info Version", i32 3}
 !11 = !{!"clang version 3.5 "}
 !12 = !DILocation(line: 1, scope: !13)
 !13 = !DILexicalBlockFile(discriminator: 0, file: !14, scope: !4)
 !14 = !DIFile(filename: "one.c", directory: "D:\5C")
 !15 = !DILocation(line: 2, scope: !16)
 !16 = !DILexicalBlockFile(discriminator: 0, file: !17, scope: !4)
 !17 = !DIFile(filename: "two.c", directory: "D:\5C")
 !18 = !DILocation(line: 7, scope: !13)
 !19 = !DILocation(line: 8, scope: !13)

test/DebugInfo/COFF/multifunction.ll

 
 
 ; X86-LABEL: _x:
 ; X86:      # BB
 ; X86-NEXT: [[X_CALL:.*]]:{{$}}
 ; X86:      calll   _z
 ; X86-NEXT: [[X_RETURN:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_X:.*]]:
 ;
 ; X86-LABEL: _y:
 ; X86:      # BB
 ; X86-NEXT: [[Y_CALL:.*]]:{{$}}
 ; X86:      calll   _z
 ; X86-NEXT: [[Y_RETURN:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_Y:.*]]:
 ;
 ; X86-LABEL: _f:
 ; X86:      # BB
 ; X86-NEXT: [[F_CALLS_X:.*]]:{{$}}
 ; X86:      calll   _x
 ; X86-NEXT: [[F_CALLS_Y:.*]]:
 ; X86:      calll   _y
 ; X86-NEXT: [[F_CALLS_Z:.*]]:
 ; X86:      calll   _z
 ; X86-NEXT: [[F_RETURN:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_F:.*]]:
 ;
 ; X86-LABEL: .section        .debug$S,"dr"
 ; X86-NEXT: .long   4
 ; Symbol subsection for x
 ; X86-NEXT: .long   241
 ; X86-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X86-NEXT: [[F1_START]]:

 ; X64-NEXT: [[X_START:.*]]:{{$}}
 ; X64:      # BB
 ; X64:      subq    $40, %rsp
 ; X64-NEXT: [[X_CALL_LINE:.*]]:{{$}}
 ; X64-NEXT: callq   z
 ; X64-NEXT: [[X_EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_X:.*]]:
 ;
 ; X64-LABEL: y:
 ; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[Y_START:.*]]:{{$}}
 ; X64:      # BB
 ; X64:      subq    $40, %rsp
 ; X64-NEXT: [[Y_CALL_LINE:.*]]:{{$}}
 ; X64-NEXT: callq   z
 ; X64-NEXT: [[Y_EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_Y:.*]]:
 ;
 ; X64-LABEL: f:
 ; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[F_START:.*]]:{{$}}
 ; X64:      # BB
 ; X64:      subq    $40, %rsp
 ; X64-NEXT: [[F_CALLS_X:.*]]:{{$}}
 ; X64-NEXT: callq   x
 ; X64-NEXT: [[F_CALLS_Y:.*]]:
 ; X64:      callq   y
 ; X64-NEXT: [[F_CALLS_Z:.*]]:
 ; X64:      callq   z
 ; X64-NEXT: [[F_EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_F:.*]]:
 ;
 ; X64-LABEL: .section        .debug$S,"dr"
 ; X64-NEXT: .long   4
 ; Symbol subsection for x
 ; X64-NEXT: .long   241
 ; X64-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X64-NEXT: [[F1_START]]:

 !3 = !{!4, !9, !10}
 !4 = !DISubprogram(name: "x", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @x, variables: !2)
 !5 = !DIFile(filename: "source.c", directory: "D:\5C")
 !6 = !DIFile(filename: "source.c", directory: "D:C")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null}
 !9 = !DISubprogram(name: "y", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !5, scope: !6, type: !7, function: void ()* @y, variables: !2)
 !10 = !DISubprogram(name: "f", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 11, file: !5, scope: !6, type: !7, function: void ()* @f, variables: !2)
-!11 = !{i32 2, !"Dwarf Version", i32 4}
+!11 = !{i32 2, !"CodeView", i32 1}
 !12 = !{i32 1, !"Debug Info Version", i32 3}
 !13 = !{!"clang version 3.5 "}
 !14 = !DILocation(line: 4, column: 42, scope: !4)
 !15 = !DILocation(line: 5, column: 43, scope: !4)
 !16 = !DILocation(line: 8, column: 52, scope: !9)
 !17 = !DILocation(line: 9, column: 53, scope: !9)
 !18 = !DILocation(line: 12, column: 62, scope: !10)
 !19 = !DILocation(line: 13, column: 63, scope: !10)
 !20 = !DILocation(line: 14, column: 72, scope: !10)
 !21 = !DILocation(line: 15, column: 73, scope: !10)

test/DebugInfo/COFF/simple.ll

 ; 5 }
 
 ; X86-LABEL: _f:
 ; X86:      # BB
 ; X86-NEXT: [[CALL_LINE:^L.*]]:{{$}}
 ; X86:      calll   _g
 ; X86-NEXT: [[RETURN_STMT:.*]]:
 ; X86:      ret
-; X86-NEXT: L{{.*}}:
 ; X86-NEXT: [[END_OF_F:.*]]:
 ;
 ; X86-LABEL: .section        .debug$S,"dr"
 ; X86-NEXT: .long   4
 ; Symbol subsection
 ; X86-NEXT: .long   241
 ; X86-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X86-NEXT: [[F1_START]]:

 ; X64-NEXT: [[START:.*]]:{{$}}
 ; X64:      # BB
 ; X64:      subq    $40, %rsp
 ; X64-NEXT: [[CALL_LINE:.*]]:{{$}}
 ; X64-NEXT: callq   g
 ; X64-NEXT: [[EPILOG_AND_RET:.*]]:
 ; X64:      addq    $40, %rsp
 ; X64-NEXT: ret
-; X64-NEXT: .L{{.*}}:
 ; X64-NEXT: [[END_OF_F:.*]]:
 ;
 ; X64-LABEL: .section        .debug$S,"dr"
 ; X64-NEXT: .long   4
 ; Symbol subsection
 ; X64-NEXT: .long   241
 ; X64-NEXT: .long [[F1_END:.*]]-[[F1_START:.*]]
 ; X64-NEXT: [[F1_START]]:

 !1 = !DIFile(filename: "<unknown>", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4}
 !4 = !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !5, scope: !6, type: !7, function: void ()* @f, variables: !2)
 !5 = !DIFile(filename: "test.c", directory: "D:\5C")
 !6 = !DIFile(filename: "test.c", directory: "D:C")
 !7 = !DISubroutineType(types: !8)
 !8 = !{null}
-!9 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 2, !"CodeView", i32 1}
 !10 = !{i32 1, !"Debug Info Version", i32 3}
 !11 = !{!"clang version 3.5 "}
 !12 = !DILocation(line: 4, scope: !4)
 !13 = !DILocation(line: 5, scope: !4)

test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll

 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
 !1 = !DIFile(filename: "test.cpp", directory: "D:\5C")
 !2 = !{}
 !3 = !{!4, !7}
 !4 = !DISubprogram(name: "spam", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 7, file: !1, scope: !5, type: !6, function: void ()* @"\01?spam@@YAXXZ", variables: !2)
 !5 = !DIFile(filename: "test.cpp", directory: "D:C")
 !6 = !DISubroutineType(types: !2)
 !7 = !DISubprogram(name: "bar", line: 3, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2)
-!8 = !{i32 2, !"Dwarf Version", i32 4}
+!8 = !{i32 2, !"CodeView", i32 1}
 !9 = !{i32 1, !"Debug Info Version", i32 3}
 !10 = !{!"clang version 3.5.0 "}
 !11 = !DILocation(line: 8, scope: !4)
 !12 = !DILocation(line: 9, scope: !4)
 !13 = !DILocation(line: 4, scope: !7)
 !14 = !DILocation(line: 5, scope: !7)

test/DebugInfo/X86/coff_debug_info_type.ll

 ; RUN: llc -mtriple=i686-pc-mingw32 -dwarf-accel-tables=Enable -filetype=asm -O0 < %s | FileCheck %s
 ; RUN: llc -mtriple=i686-pc-cygwin -dwarf-accel-tables=Enable -filetype=asm -O0 < %s | FileCheck %s
 ; RUN: llc -mtriple=i686-w64-mingw32 -dwarf-accel-tables=Enable -filetype=asm -O0 < %s | FileCheck %s
 ; CHECK:    .section  .debug_info
 ; CHECK:    .section  .apple_names
 ; CHECK:    .section  .apple_types
 
-; RUN: llc -mtriple=i686-pc-win32 -filetype=asm -O0 < %s | FileCheck -check-prefix=WIN32 %s
+; RUN: sed -e 's/"Dwarf Version"/"CodeView"/' %s \
+; RUN:     | llc -mtriple=i686-pc-win32 -filetype=asm -O0 \
+; RUN:     | FileCheck -check-prefix=WIN32 %s
 ; WIN32:    .section .debug$S,"dr"
 
 ; RUN: llc -mtriple=i686-pc-win32 -filetype=null -O0 < %s
 
 ; generated from:
 ; clang -g -S -emit-llvm test.c -o test.ll
 ; int main()
 ; {

test/MC/ARM/coff-debugging-secrel.ll

 ; RUN: llc -mtriple thumbv7--windows-itanium -filetype obj -o - %s \
 ; RUN:     | llvm-readobj -r - | FileCheck %s -check-prefix CHECK-ITANIUM
 
-; RUN: llc -mtriple thumbv7--windows-msvc -filetype obj -o - %s \
+; RUN: sed -e 's/"Dwarf Version"/"CodeView"/' %s \
+; RUN:    | llc -mtriple thumbv7--windows-msvc -filetype obj -o - \
 ; RUN:    | llvm-readobj -r - | FileCheck %s -check-prefix CHECK-MSVC
 
 ; ModuleID = '/Users/compnerd/work/llvm/test/MC/ARM/reduced.c'
 target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64"
 target triple = "thumbv7--windows-itanium"
 
 define arm_aapcs_vfpcc void @function() {
 entry: