commit 9ec55f24b8f848bb37a9971100cf2fca379d5572
author Tim Northover <Tim.Northover@arm.com> Tue Jan 22 09:46:51 2013 +0000
committer Tim Northover <Tim.Northover@arm.com> Tue Jan 22 09:46:51 2013 +0000
tree fdb28f0db2d5d873ef4c3bbfa1ce7aaddf5b5399
parent 6a94c1ea2d9ee397cc9d75045117a39e8f62235d

Switch to APFloat constructor taking fltSemantics.

This change also makes the serialisation store the required semantics,
fixing an issue where PPC128 was always assumed when re-reading a
128-bit value.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173139 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ASTReader.cpp

diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index 97766d0..4e6e6db 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -6669,8 +6669,10 @@
 }
 
 /// \brief Read a floating-point value
-llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) {
-  return llvm::APFloat(ReadAPInt(Record, Idx));
+llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record,
+                                     const llvm::fltSemantics &Sem,
+                                     unsigned &Idx) {
+  return llvm::APFloat(Sem, ReadAPInt(Record, Idx));
 }
 
 // \brief Read a string

lib/Serialization/ASTReaderStmt.cpp

diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index 6735c3c..7f26a17 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -378,8 +378,10 @@
 
 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
   VisitExpr(E);
-  E->setValue(Reader.getContext(), Reader.ReadAPFloat(Record, Idx));
+  E->setRawSemantics(static_cast<Stmt::APFloatSemantics>(Record[Idx++]));
   E->setExact(Record[Idx++]);
+  E->setValue(Reader.getContext(),
+              Reader.ReadAPFloat(Record, E->getSemantics(), Idx));
   E->setLocation(ReadSourceLocation(Record, Idx));
 }
 

lib/Serialization/ASTWriterStmt.cpp

diff --git a/lib/Serialization/ASTWriterStmt.cpp b/lib/Serialization/ASTWriterStmt.cpp
index 0c6dc5d..6b96c50 100644
--- a/lib/Serialization/ASTWriterStmt.cpp
+++ b/lib/Serialization/ASTWriterStmt.cpp
@@ -324,8 +324,9 @@
 
 void ASTStmtWriter::VisitFloatingLiteral(FloatingLiteral *E) {
   VisitExpr(E);
-  Writer.AddAPFloat(E->getValue(), Record);
+  Record.push_back(E->getRawSemantics());
   Record.push_back(E->isExact());
+  Writer.AddAPFloat(E->getValue(), Record);
   Writer.AddSourceLocation(E->getLocation(), Record);
   Code = serialization::EXPR_FLOATING_LITERAL;
 }