[clang][serialization] Allow special types to be empty

jansvoboda11 · jansvoboda11 · commit 446f239b8080 · 2024-11-06T15:59:49.000-08:00
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
@@ -3529,6 +3529,9 @@ llvm::Error ASTReader::ReadASTBlock(ModuleFile &F,
         break;
       }
 
+      if (Record.empty())
+        break;
+
       if (SpecialTypes.size() != Record.size())
         return llvm::createStringError(std::errc::illegal_byte_sequence,
                                        "invalid special-types record");

Original file line number	Diff line number	Diff line change
`@@ -3529,6 +3529,9 @@ llvm::Error ASTReader::ReadASTBlock(ModuleFile &F,`
`3529`	`3529`	`break;`
`3530`	`3530`	`}`
`3531`	`3531`
	`3532`	`+ if (Record.empty())`
	`3533`	`+ break;`
	`3534`	`+`
`3532`	`3535`	`if (SpecialTypes.size() != Record.size())`
`3533`	`3536`	`return llvm::createStringError(std::errc::illegal_byte_sequence,`
`3534`	`3537`	`"invalid special-types record");`