[clang] 2ce9a79 - [Serialization] Use packed bits to initialize UserDefinedLiteral

[Chuanqi Xu via cfe-commits]

Author: Chuanqi Xu
Date: 2023-12-11T18:24:09+08:00
New Revision: 2ce9a799f950678cef844706ecb55a483d3c225b

URL: https://github.com/llvm/llvm-project/commit/2ce9a799f950678cef844706ecb55a483d3c225b
DIFF: https://github.com/llvm/llvm-project/commit/2ce9a799f950678cef844706ecb55a483d3c225b.diff

LOG: [Serialization] Use packed bits to initialize UserDefinedLiteral

UserDefinedLiteral is also a sub class of CallExpr but we forgot to
initialize it in the same way as other sub classes of CallExpr.

Added: 
    

Modified: 
    clang/lib/Serialization/ASTReaderStmt.cpp

Removed: 
    


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diff  --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index d9eedb2e1089fb..b3a6f619372b4a 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -3851,11 +3851,14 @@ Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
       S = new (Context) BuiltinBitCastExpr(Empty);
       break;
 
-    case EXPR_USER_DEFINED_LITERAL:
-      S = UserDefinedLiteral::CreateEmpty(
-          Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
-          /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
+    case EXPR_USER_DEFINED_LITERAL: {
+      BitsUnpacker CallExprBits(Record[ASTStmtReader::NumExprFields]);
+      auto NumArgs = CallExprBits.getNextBits(/*Width=*/16);
+      auto HasFPFeatures = CallExprBits.getNextBit();
+      S = UserDefinedLiteral::CreateEmpty(Context, NumArgs, HasFPFeatures,
+                                          Empty);
       break;
+    }
 
     case EXPR_CXX_STD_INITIALIZER_LIST:
       S = new (Context) CXXStdInitializerListExpr(Empty);