commit eecf5fa12d5426637c47d7072f0c193a8d7ff68b
author John McCall <rjmccall@apple.com> Wed Mar 09 04:22:44 2011 +0000
committer John McCall <rjmccall@apple.com> Wed Mar 09 04:22:44 2011 +0000
tree 43609da06982fb96d300f35e54a191a17b74d91b
parent 6d5552131a4637f9bbe8c93386648e9bbb2c30fe

Add a bit to ParmVarDecl indicating whether the parameter undergoes 
K&R-style default argument promotion.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127313 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaType.cpp

diff --git a/lib/Sema/SemaType.cpp b/lib/Sema/SemaType.cpp
index 20a8522..8e857f1 100644
--- a/lib/Sema/SemaType.cpp
+++ b/lib/Sema/SemaType.cpp
@@ -1873,9 +1873,12 @@
           } else if (!FTI.hasPrototype) {
             if (ArgTy->isPromotableIntegerType()) {
               ArgTy = Context.getPromotedIntegerType(ArgTy);
+              Param->setKNRPromoted(true);
             } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) {
-              if (BTy->getKind() == BuiltinType::Float)
+              if (BTy->getKind() == BuiltinType::Float) {
                 ArgTy = Context.DoubleTy;
+                Param->setKNRPromoted(true);
+              }
             }
           }
 

lib/Serialization/ASTReaderDecl.cpp

diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index 81aad61..60fcc14 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -702,6 +702,7 @@
 void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
   VisitVarDecl(PD);
   PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
+  PD->setKNRPromoted(Record[Idx++]);
   PD->setHasInheritedDefaultArg(Record[Idx++]);
   if (Record[Idx++]) // hasUninstantiatedDefaultArg.
     PD->setUninstantiatedDefaultArg(Reader.ReadExpr(F));

lib/Serialization/ASTWriterDecl.cpp

diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index a5c4398..95b0c3c 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -577,6 +577,7 @@
 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
   VisitVarDecl(D);
   Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
+  Record.push_back(D->isKNRPromoted());
   Record.push_back(D->hasInheritedDefaultArg());
   Record.push_back(D->hasUninstantiatedDefaultArg());
   if (D->hasUninstantiatedDefaultArg())
@@ -595,6 +596,7 @@
       D->getStorageClass() == 0 &&
       !D->hasCXXDirectInitializer() && // Can params have this ever?
       D->getObjCDeclQualifier() == 0 &&
+      !D->isKNRPromoted() &&
       !D->hasInheritedDefaultArg() &&
       D->getInit() == 0 &&
       !D->hasUninstantiatedDefaultArg())  // No default expr.
@@ -1147,6 +1149,7 @@
   Abv->Add(BitCodeAbbrevOp(0));                   // HasMemberSpecializationInfo
   // ParmVarDecl
   Abv->Add(BitCodeAbbrevOp(0));                       // ObjCDeclQualifier
+  Abv->Add(BitCodeAbbrevOp(0));                       // KNRPromoted
   Abv->Add(BitCodeAbbrevOp(0));                       // HasInheritedDefaultArg
   Abv->Add(BitCodeAbbrevOp(0));                   // HasUninstantiatedDefaultArg