Merge pull request #8429 from rastogishubham/FourByteMCCAS

rastogishubham · web-flow · commit 1ad249b55ef5 · 2024-03-19T10:47:11.000-07:00
Add support for 32 bit Addresses in MCCAS debug info
diff --git a/llvm/include/llvm/MC/MCMachOCASWriter.h b/llvm/include/llvm/MC/MCMachOCASWriter.h
@@ -55,6 +55,8 @@ class MachOCASWriter : public MCObjectWriter {
       std::optional<MCTargetOptions::ResultCallBackTy> CallBack,
       raw_pwrite_stream *CasIDOS = nullptr);
 
+  uint8_t getAddressSize() { return Target.isArch32Bit() ? 4 : 8; }
+
   void recordRelocation(MCAssembler &Asm, const MCAsmLayout &Layout,
                         const MCFragment *Fragment, const MCFixup &Fixup,
                         MCValue Target, uint64_t &FixedValue) override {
diff --git a/llvm/include/llvm/MCCAS/MCCASObjectV1.h b/llvm/include/llvm/MCCAS/MCCASObjectV1.h
@@ -639,6 +639,8 @@ class MCCASReader {
 
   Triple::ArchType getArch() { return Target.getArch(); }
 
+  uint8_t getAddressSize() { return Target.isArch32Bit() ? 4 : 8; }
+
   Expected<uint64_t> materializeGroup(cas::ObjectRef ID);
   Expected<uint64_t> materializeDebugAbbrevUnopt(ArrayRef<cas::ObjectRef> Refs);
   Expected<uint64_t> materializeSection(cas::ObjectRef ID, raw_ostream *Stream);
@@ -740,7 +742,7 @@ Error visitDebugInfo(
     std::function<void(dwarf::Tag, uint64_t)> StartTagCallback,
     std::function<void(dwarf::Attribute, dwarf::Form, StringRef, bool)>
         AttrCallback,
-    std::function<void(bool)> EndTagCallback,
+    std::function<void(bool)> EndTagCallback, uint8_t AddressSize,
     std::function<void(StringRef)> NewBlockCallback = [](StringRef) {});
 
 } // namespace v1
diff --git a/llvm/lib/MCCAS/MCCASObjectV1.cpp b/llvm/lib/MCCAS/MCCASObjectV1.cpp
@@ -505,7 +505,7 @@ static Error materializeDebugInfoOpt(MCCASReader &Reader,
                           StringRef FormData, bool) {
     if (Form == dwarf::Form::DW_FORM_ref4_cas ||
         Form == dwarf::Form::DW_FORM_strp_cas) {
-      DataExtractor Extractor(FormData, true, 8);
+      DataExtractor Extractor(FormData, true, Reader.getAddressSize());
       DataExtractor::Cursor Cursor(0);
       uint64_t Data64 = Extractor.getULEB128(Cursor);
       if (!Cursor)
@@ -529,7 +529,7 @@ static Error materializeDebugInfoOpt(MCCASReader &Reader,
 
     if (auto E = visitDebugInfo(TotAbbrevEntries, std::move(MaybeTopRef),
                                 HeaderCallback, StartTagCallback, AttrCallback,
-                                EndTagCallback))
+                                EndTagCallback, Reader.getAddressSize()))
       return E;
   }
   return Error::success();
@@ -826,10 +826,11 @@ getLineTableLengthInfoAndVersion(DWARFDataExtractor &LineTableDataReader,
     auto AddressSize = LineTableDataReader.getU8(OffsetPtr, &Err);
     if (Err)
       return std::move(Err);
-    if (AddressSize != 8)
+    if (AddressSize != LineTableDataReader.getAddressSize())
       return createStringError(
           inconvertibleErrorCode(),
-          "Address size is not 8 bytes, unsupported architecture for MCCAS!");
+          "Address size in line table header is not the same as Address size "
+          "for the target architecture, something went really wrong!");
     LineTableDataReader.getU8(OffsetPtr, &Err);
     if (Err)
       return std::move(Err);
@@ -956,9 +957,12 @@ handleStandardOpcodesForLineTable(DWARFDataExtractor &LineTableDataReader,
 static Expected<std::pair<uint64_t, uint64_t>>
 getOpcodeAndOperandSize(StringRef DistinctData, StringRef LineTableData,
                         uint64_t DistinctOffset, uint64_t LineTableOffset,
-                        bool IsLittleEndian, uint8_t OpcodeBase) {
-  DWARFDataExtractor LineTableDataReader(LineTableData, IsLittleEndian, 8);
-  DWARFDataExtractor DistinctDataReader(DistinctData, IsLittleEndian, 8);
+                        bool IsLittleEndian, uint8_t OpcodeBase,
+                        uint8_t AddressSize) {
+  DWARFDataExtractor LineTableDataReader(LineTableData, IsLittleEndian,
+                                         AddressSize);
+  DWARFDataExtractor DistinctDataReader(DistinctData, IsLittleEndian,
+                                        AddressSize);
   DWARFDataExtractor::Cursor LineTableCursor(LineTableOffset);
   DWARFDataExtractor::Cursor DistinctCursor(DistinctOffset);
 
@@ -1064,7 +1068,8 @@ materializeDebugLineSection(MCCASReader &Reader,
       DistinctDebugLineRefSeen = true;
       auto Data = DistinctRef->getData();
       DistinctData.append(Data.begin(), Data.end());
-      DWARFDataExtractor LineTableDataReader(Data, Reader.getEndian(), 8);
+      DWARFDataExtractor LineTableDataReader(Data, Reader.getEndian(),
+                                             Reader.getAddressSize());
       auto Prologue = parseLineTableHeaderAndSkip(LineTableDataReader);
       if (!Prologue)
         return Prologue.takeError();
@@ -1084,9 +1089,9 @@ materializeDebugLineSection(MCCASReader &Reader,
       auto Data = LineRef->getData();
       uint64_t LineTableOffset = 0;
       while (LineTableOffset < Data.size()) {
-        auto Sizes = getOpcodeAndOperandSize(toStringRef(DistinctData), Data,
-                                             DistinctOffset, LineTableOffset,
-                                             Reader.getEndian(), OpcodeBase);
+        auto Sizes = getOpcodeAndOperandSize(
+            toStringRef(DistinctData), Data, DistinctOffset, LineTableOffset,
+            Reader.getEndian(), OpcodeBase, Reader.getAddressSize());
         if (!Sizes)
           return Sizes.takeError();
         // Copy opcode and operand, only in the case of DW_LNS_set_file, the
@@ -1725,12 +1730,11 @@ static Expected<size_t> getSizeFromDwarfHeader(DataExtractor &Extractor,
 /// contained in CUData, as well as the total number of bytes taken by the CU.
 /// Note: this is different from the length field of the Dwarf header, which
 /// does not account for the header size.
-static Expected<CUInfo>
-getAndSetDebugAbbrevOffsetAndSkip(MutableArrayRef<char> CUData,
-                                  support::endianness Endian,
-                                  std::optional<uint32_t> NewOffset) {
+static Expected<CUInfo> getAndSetDebugAbbrevOffsetAndSkip(
+    MutableArrayRef<char> CUData, support::endianness Endian,
+    std::optional<uint32_t> NewOffset, uint8_t AddressSize) {
   DataExtractor Extractor(toStringRef(CUData),
-                          Endian == support::endianness::little, 8);
+                          Endian == support::endianness::little, AddressSize);
   DataExtractor::Cursor Cursor(0);
   Expected<size_t> Size = getSizeFromDwarfHeader(Extractor, Cursor);
   if (!Size)
@@ -1754,13 +1758,14 @@ getAndSetDebugAbbrevOffsetAndSkip(MutableArrayRef<char> CUData,
       return createStringError(
           inconvertibleErrorCode(),
           "Unit type is not DW_UT_compile, and is incompatible with MCCAS!");
-    uint8_t AddressSize = Extractor.getU8(Cursor);
+    uint8_t HeaderAddressSize = Extractor.getU8(Cursor);
     if (!Cursor)
       return Cursor.takeError();
-    if (AddressSize != 8)
+    if (HeaderAddressSize != AddressSize)
       return createStringError(
           inconvertibleErrorCode(),
-          "Address size is not 8 bytes, unsupported architecture for MCCAS!");
+          "Address size in Compile Unit header is not the same as Address size "
+          "for the target architecture, something went really wrong!");
   }
 
   // TODO: Handle Dwarf 64 format, which uses 8 bytes.
@@ -1815,7 +1820,8 @@ MCCASBuilder::splitDebugInfoSectionData(MutableArrayRef<char> DebugInfoData) {
   // CU splitting loop.
   while (!DebugInfoData.empty()) {
     Expected<CUInfo> Info = getAndSetDebugAbbrevOffsetAndSkip(
-        DebugInfoData, Asm.getBackend().Endian, /*NewOffset*/ 0);
+        DebugInfoData, Asm.getBackend().Endian, /*NewOffset*/ 0,
+        ObjectWriter.getAddressSize());
     if (!Info)
       return Info.takeError();
     Split.SplitCUData.push_back(DebugInfoData.take_front(Info->CUSize));
@@ -1981,12 +1987,15 @@ Error InMemoryCASDWARFObject::partitionCUData(ArrayRef<char> DebugInfoData,
                                               uint16_t DwarfVersion) {
   StringRef AbbrevSectionContribution =
       getAbbrevSection().drop_front(AbbrevOffset);
-  DataExtractor Data(AbbrevSectionContribution, isLittleEndian(), 8);
+  DataExtractor Data(AbbrevSectionContribution, isLittleEndian(),
+                     Builder.ObjectWriter.getAddressSize());
   DWARFDebugAbbrev Abbrev(Data);
   uint64_t OffsetPtr = 0;
   DWARFUnitHeader Header;
   DWARFSection Section = {toStringRef(DebugInfoData), 0 /*Address*/};
-  Header.extract(*Ctx, DWARFDataExtractor(*this, Section, isLittleEndian(), 8),
+  Header.extract(*Ctx,
+                 DWARFDataExtractor(*this, Section, isLittleEndian(),
+                                    Builder.ObjectWriter.getAddressSize()),
                  &OffsetPtr, DWARFSectionKind::DW_SECT_INFO);
 
   DWARFUnitVector UV;
@@ -2084,8 +2093,8 @@ inline void copyData(SmallVector<char, 0> &Data, StringRef DebugLineStrRef,
 
 Expected<uint64_t>
 MCCASBuilder::createOptimizedLineSection(StringRef DebugLineStrRef) {
-  DWARFDataExtractor LineTableDataReader(DebugLineStrRef,
-                                         Asm.getBackend().Endian, 8);
+  DWARFDataExtractor LineTableDataReader(
+      DebugLineStrRef, Asm.getBackend().Endian, ObjectWriter.getAddressSize());
   auto Prologue = parseLineTableHeaderAndSkip(LineTableDataReader);
   if (!Prologue)
     return Prologue.takeError();
@@ -3127,20 +3136,19 @@ Error DIEVisitor::visitDIEAttrs(DataExtractor &Extractor,
                                 StringRef DIEData,
                                 ArrayRef<AbbrevContent> DIEContents) {
   constexpr auto IsLittleEndian = true;
-  constexpr auto AddrSize = 8;
-  auto FormParams =
-      dwarf::FormParams{DwarfVersion, AddrSize, dwarf::DwarfFormat::DWARF32};
+  auto FormParams = dwarf::FormParams{DwarfVersion, Extractor.getAddressSize(),
+                                      dwarf::DwarfFormat::DWARF32};
 
   for (auto Contents : DIEContents) {
     bool DataInDistinct = Contents.FormInDistinctData;
     auto &ExtractorForData = DataInDistinct ? DistinctExtractor : Extractor;
     auto &CursorForData = DataInDistinct ? DistinctCursor : Cursor;
     StringRef DataToUse = DataInDistinct ? DistinctData : DIEData;
     Expected<uint64_t> FormSize =
-        Contents.FormSize
-            ? *Contents.FormSize
-            : getFormSize(Contents.Form, FormParams, DataToUse,
-                          CursorForData.tell(), IsLittleEndian, AddrSize);
+        Contents.FormSize ? *Contents.FormSize
+                          : getFormSize(Contents.Form, FormParams, DataToUse,
+                                        CursorForData.tell(), IsLittleEndian,
+                                        Extractor.getAddressSize());
     if (!FormSize)
       return FormSize.takeError();
 
@@ -3241,9 +3249,9 @@ static std::optional<uint8_t> getNonULEBFormSize(dwarf::Form Form,
 }
 
 Error DIEVisitor::materializeAbbrevDIE(unsigned AbbrevIdx) {
-  constexpr auto AddrSize = 8;
   auto FormParams =
-      dwarf::FormParams{DwarfVersion, AddrSize, dwarf::DwarfFormat::DWARF32};
+      dwarf::FormParams{DwarfVersion, DistinctExtractor.getAddressSize(),
+                        dwarf::DwarfFormat::DWARF32};
 
   AbbrevEntryReader AbbrevReader =
       getAbbrevEntryReader(AbbrevEntries, AbbrevIdx);
@@ -3281,9 +3289,10 @@ Error DIEVisitor::materializeAbbrevDIE(unsigned AbbrevIdx) {
 /// previous stack frame.
 static void popStack(DataExtractor &Extractor, DataExtractor::Cursor &Cursor,
                      StringRef &Data,
-                     std::stack<std::pair<StringRef, unsigned>> &StackOfNodes) {
+                     std::stack<std::pair<StringRef, unsigned>> &StackOfNodes,
+                     uint8_t AddressSize) {
   auto DataAndOffset = StackOfNodes.top();
-  Extractor = DataExtractor(DataAndOffset.first, true, 8);
+  Extractor = DataExtractor(DataAndOffset.first, true, AddressSize);
   Data = DataAndOffset.first;
   Cursor.seek(DataAndOffset.second);
   StackOfNodes.pop();
@@ -3299,7 +3308,7 @@ Error DIEVisitor::visitDIERef(ArrayRef<DIEDataRef> &DIEChildrenStack) {
   std::stack<std::pair<StringRef, unsigned>> StackOfNodes;
   auto Data = DIEChildrenStack.empty() ? StringRef()
                                        : DIEChildrenStack.front().getData();
-  DataExtractor Extractor(Data, true, 8);
+  DataExtractor Extractor(Data, true, DistinctExtractor.getAddressSize());
   DataExtractor::Cursor Cursor(0);
 
   while (!DistinctExtractor.eof(DistinctCursor)) {
@@ -3316,7 +3325,8 @@ Error DIEVisitor::visitDIERef(ArrayRef<DIEDataRef> &DIEChildrenStack) {
     if (AbbrevIdx == getEndOfDIESiblingsMarker()) {
       EndTagCallback(true /*HadChildren*/);
       if (!StackOfNodes.empty() && Extractor.eof(Cursor))
-        popStack(Extractor, Cursor, Data, StackOfNodes);
+        popStack(Extractor, Cursor, Data, StackOfNodes,
+                 DistinctExtractor.getAddressSize());
       continue;
     }
 
@@ -3328,7 +3338,7 @@ Error DIEVisitor::visitDIERef(ArrayRef<DIEDataRef> &DIEChildrenStack) {
       DIEChildrenStack = DIEChildrenStack.drop_front();
       Data = DIEChildrenStack.front().getData();
       NewBlockCallback(DIEChildrenStack.front().getID().toString());
-      Extractor = DataExtractor(Data, true, 8);
+      Extractor = DataExtractor(Data, true, DistinctExtractor.getAddressSize());
       Cursor.seek(0);
       continue;
     }
@@ -3347,7 +3357,8 @@ Error DIEVisitor::visitDIERef(ArrayRef<DIEDataRef> &DIEChildrenStack) {
     // parent's siblings that may exist.
     if (!AbbrevEntryCacheVal.HasChildren) {
       if (!StackOfNodes.empty() && Extractor.eof(Cursor))
-        popStack(Extractor, Cursor, Data, StackOfNodes);
+        popStack(Extractor, Cursor, Data, StackOfNodes,
+                 DistinctExtractor.getAddressSize());
       EndTagCallback(false /*HadChildren*/);
     }
   }
@@ -3387,7 +3398,7 @@ Error mccasformats::v1::visitDebugInfo(
     std::function<void(dwarf::Tag, uint64_t)> StartTagCallback,
     std::function<void(dwarf::Attribute, dwarf::Form, StringRef, bool)>
         AttrCallback,
-    std::function<void(bool)> EndTagCallback,
+    std::function<void(bool)> EndTagCallback, uint8_t AddressSize,
     std::function<void(StringRef)> NewBlockCallback) {
 
   Expected<LoadedDIETopLevel> LoadedTopRef =
@@ -3406,7 +3417,7 @@ Error mccasformats::v1::visitDebugInfo(
     return E;
   DistinctData = toStringRef(OutBuff);
 #endif
-  DataExtractor DistinctExtractor(DistinctData, true, 8);
+  DataExtractor DistinctExtractor(DistinctData, true, AddressSize);
   DataExtractor::Cursor DistinctCursor(0);
 
   auto Size = getSizeFromDwarfHeader(DistinctExtractor, DistinctCursor);
diff --git a/llvm/test/CAS/armv7-cas-dwarf5.ll b/llvm/test/CAS/armv7-cas-dwarf5.ll
@@ -0,0 +1,32 @@
+; RUN: rm -rf %t && mkdir -p %t
+; RUN: llc --filetype=obj --mccas-verify --cas-backend --cas=%t/cas %s -o %t/watchos-cas-dwarf5.o 
+; RUN: llvm-dwarfdump %t/watchos-cas-dwarf5.o | FileCheck %s
+; CHECK: .debug_info contents:
+; CHECK-NEXT: 0x{{[0-9a-f]+}}: Compile Unit: length = 0x{{[0-9a-f]+}}, format = DWARF32, version = 0x0005, unit_type = DW_UT_compile, abbr_offset = 0x0000, addr_size = 0x04
+; REQUIRES: arm-registered-target
+
+; ModuleID = '/tmp/a.cpp'
+source_filename = "/tmp/a.cpp"
+target datalayout = "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
+target triple = "thumbv7-apple-ios5.0.0"
+
+@a = global i32 0, align 4, !dbg !0
+
+!llvm.dbg.cu = !{!2}
+!llvm.module.flags = !{!7, !8, !9, !10, !11, !12}
+!llvm.ident = !{!13}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 19.0.0git (git@github.com:apple/llvm-project.git 6fa917db4566cab002b856a66e8ebba16f0e20a4)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: Apple, sysroot: "/")
+!3 = !DIFile(filename: "/tmp/a.cpp", directory: "/Users/shubham/Development/llvm-project-cas/llvm-project/build_ninja", checksumkind: CSK_MD5, checksum: "5b8ff0b44df608b9bb47431c2b46f6ce")
+!4 = !{!0}
+!5 = !DIFile(filename: "/tmp/a.cpp", directory: "", checksumkind: CSK_MD5, checksum: "5b8ff0b44df608b9bb47431c2b46f6ce")
+!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!7 = !{i32 7, !"Dwarf Version", i32 5}
+!8 = !{i32 2, !"Debug Info Version", i32 3}
+!9 = !{i32 1, !"wchar_size", i32 4}
+!10 = !{i32 1, !"min_enum_size", i32 4}
+!11 = !{i32 8, !"PIC Level", i32 2}
+!12 = !{i32 7, !"frame-pointer", i32 2}
+!13 = !{!"clang version 19.0.0git (git@github.com:apple/llvm-project.git 6fa917db4566cab002b856a66e8ebba16f0e20a4)"}
diff --git a/llvm/test/CAS/armv7-cas.ll b/llvm/test/CAS/armv7-cas.ll
@@ -0,0 +1,32 @@
+; RUN: rm -rf %t && mkdir -p %t
+; RUN: llc --filetype=obj --mccas-verify --cas-backend --cas=%t/cas %s -o %t/watchos-cas.o 
+; RUN: llvm-dwarfdump %t/watchos-cas.o | FileCheck %s
+; CHECK: .debug_info contents:
+; CHECK-NEXT: 0x{{[0-9a-f]+}}: Compile Unit: length = 0x{{[0-9a-f]+}}, format = DWARF32, version = 0x0004, abbr_offset = 0x0000, addr_size = 0x04
+; REQUIRES: arm-registered-target
+
+; ModuleID = '/tmp/a.cpp'
+source_filename = "/tmp/a.cpp"
+target datalayout = "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
+target triple = "thumbv7-apple-ios5.0.0"
+
+@a = global i32 0, align 4, !dbg !0
+
+!llvm.dbg.cu = !{!2}
+!llvm.module.flags = !{!7, !8, !9, !10, !11, !12}
+!llvm.ident = !{!13}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 19.0.0git (git@github.com:apple/llvm-project.git 6fa917db4566cab002b856a66e8ebba16f0e20a4)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: Apple, sysroot: "/")
+!3 = !DIFile(filename: "/tmp/a.cpp", directory: "/Users/shubham/Development/llvm-project-cas/llvm-project/build_ninja")
+!4 = !{!0}
+!5 = !DIFile(filename: "/tmp/a.cpp", directory: "")
+!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!7 = !{i32 7, !"Dwarf Version", i32 4}
+!8 = !{i32 2, !"Debug Info Version", i32 3}
+!9 = !{i32 1, !"wchar_size", i32 4}
+!10 = !{i32 1, !"min_enum_size", i32 4}
+!11 = !{i32 8, !"PIC Level", i32 2}
+!12 = !{i32 7, !"frame-pointer", i32 2}
+!13 = !{!"clang version 19.0.0git (git@github.com:apple/llvm-project.git 6fa917db4566cab002b856a66e8ebba16f0e20a4)"}
diff --git a/llvm/test/CAS/watchos-cas-dwarf5.ll b/llvm/test/CAS/watchos-cas-dwarf5.ll
@@ -0,0 +1,32 @@
+; RUN: rm -rf %t && mkdir -p %t
+; RUN: llc --filetype=obj --mccas-verify --cas-backend --cas=%t/cas %s -o %t/watchos-cas-dwarf5.o 
+; RUN: llvm-dwarfdump %t/watchos-cas-dwarf5.o | FileCheck %s
+; CHECK: .debug_info contents:
+; CHECK-NEXT: 0x{{[0-9a-f]+}}: Compile Unit: length = 0x{{[0-9a-f]+}}, format = DWARF32, version = 0x0005, unit_type = DW_UT_compile, abbr_offset = 0x0000, addr_size = 0x04
+; REQUIRES: arm-registered-target
+
+; ModuleID = '/tmp/a.cpp'
+source_filename = "/tmp/a.cpp"
+target datalayout = "e-m:o-p:32:32-i64:64-i128:128-n32:64-S128"
+target triple = "arm64_32-apple-watchos11.0.0"
+
+@a = global i32 0, align 4, !dbg !0
+
+!llvm.dbg.cu = !{!2}
+!llvm.module.flags = !{!7, !8, !9, !10, !11, !12}
+!llvm.ident = !{!13}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 19.0.0git (git@github.com:apple/llvm-project.git eb2f92059e91645250d108b3331cc28243aeadbc)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: Apple, sysroot: "/")
+!3 = !DIFile(filename: "/tmp/a.cpp", directory: "/Users/shubham/Development/llvm-project-cas/llvm-project/build_ninja", checksumkind: CSK_MD5, checksum: "5b8ff0b44df608b9bb47431c2b46f6ce")
+!4 = !{!0}
+!5 = !DIFile(filename: "/tmp/a.cpp", directory: "", checksumkind: CSK_MD5, checksum: "5b8ff0b44df608b9bb47431c2b46f6ce")
+!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!7 = !{i32 7, !"Dwarf Version", i32 5}
+!8 = !{i32 2, !"Debug Info Version", i32 3}
+!9 = !{i32 1, !"wchar_size", i32 4}
+!10 = !{i32 8, !"PIC Level", i32 2}
+!11 = !{i32 7, !"uwtable", i32 1}
+!12 = !{i32 7, !"frame-pointer", i32 1}
+!13 = !{!"clang version 19.0.0git (git@github.com:apple/llvm-project.git eb2f92059e91645250d108b3331cc28243aeadbc)"}
diff --git a/llvm/test/CAS/watchos-cas.ll b/llvm/test/CAS/watchos-cas.ll
diff --git a/llvm/tools/llvm-cas-dump/MCCASPrinter.cpp b/llvm/tools/llvm-cas-dump/MCCASPrinter.cpp
