Support all MCEncodedFragmentWithContents variants

In MCCAS we use MCCASBuilder::mergeMCFragmentContents to merge the
contents of DWARF sections before doing optimizations on them for
deduplication, while most sections only use MCDataFragments, some other
sections can use other kinds of fragments, make sure we support all
MCEncodedFragmentWithContents types.

Author: rastogishubham

llvm/lib/MCCAS/MCCASObjectV1.cpp

@@ -1809,6 +1809,12 @@ Expected<SmallVector<char, 0>> MCCASBuilder::mergeMCFragmentContents(
   for (const MCFragment &Fragment : FragmentList) {
     if (const auto *DataFragment = dyn_cast<MCDataFragment>(&Fragment))
       llvm::append_range(mergedData, DataFragment->getContents());
+    else if (const auto *CompactEncodedInstFragment =
+                 dyn_cast<MCCompactEncodedInstFragment>(&Fragment))
+      llvm::append_range(mergedData, CompactEncodedInstFragment->getContents());
+    else if (const auto *RelaxableFragment =
+                 dyn_cast<MCRelaxableFragment>(&Fragment))
+      llvm::append_range(mergedData, RelaxableFragment->getContents());
     else if (const auto *DwarfLineAddrFrag =
                  dyn_cast<MCDwarfLineAddrFragment>(&Fragment))
       if (IsDebugLineSection)
@@ -1817,9 +1823,29 @@ Expected<SmallVector<char, 0>> MCCASBuilder::mergeMCFragmentContents(
         return createStringError(
             inconvertibleErrorCode(),
             "Invalid MCDwarfLineAddrFragment in a non debug line section");
-    else
-      return createStringError(inconvertibleErrorCode(),
-                               "Invalid fragment type");
+    else if (const auto *DwarfCallFrameFragment =
+                 dyn_cast<MCDwarfCallFrameFragment>(&Fragment))
+      llvm::append_range(mergedData, DwarfCallFrameFragment->getContents());
+    else if (const auto *CVDefRangeFragment =
+                 dyn_cast<MCCVDefRangeFragment>(&Fragment))
+      llvm::append_range(mergedData, CVDefRangeFragment->getContents());
+    else if (const auto *PseudoProbeAddrFragment =
+                 dyn_cast<MCPseudoProbeAddrFragment>(&Fragment))
+      llvm::append_range(mergedData, PseudoProbeAddrFragment->getContents());
+    else if (const auto *LEBFragment = dyn_cast<MCLEBFragment>(&Fragment))
+      llvm::append_range(mergedData, LEBFragment->getContents());
+    else if (const auto *CVInlineLineTableFragment =
+                 dyn_cast<MCCVInlineLineTableFragment>(&Fragment))
+      llvm::append_range(mergedData, CVInlineLineTableFragment->getContents());
+    else if (const auto *AlignFragment = dyn_cast<MCAlignFragment>(&Fragment)) {
+      auto FragmentSize = Asm.computeFragmentSize(Layout, Fragment);
+      raw_svector_ostream OS(mergedData);
+      if (auto E = writeAlignFragment(*this, *AlignFragment, OS, FragmentSize))
+        return std::move(E);
+    } else
+      // All other fragment types can be considered empty, see
+      // getFragmentContents() for all fragments that have contents.
+      continue;
   }
   return mergedData;
 }