commit be9af1288881110e406b87914162eaa59f1e5918
author Lang Hames <lhames@gmail.com> Tue Oct 02 04:45:10 2012 +0000
committer Lang Hames <lhames@gmail.com> Tue Oct 02 04:45:10 2012 +0000
tree d5dad9578b613b3a7d8e5b6612e686b76bb22203
parent d13eff6f77216a6fb25e18f600b492db4f0492e8

Add FP_CONTRACT support for clang.

Clang will now honor the FP_CONTRACT pragma and emit LLVM
fmuladd intrinsics for expressions of the form A * B + C (when they occur in a
single statement).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164989 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ASTReaderStmt.cpp

diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index cfe22b5..3a02e76 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -565,6 +565,7 @@
   E->setRHS(Reader.ReadSubExpr());
   E->setOpcode((BinaryOperator::Opcode)Record[Idx++]);
   E->setOperatorLoc(ReadSourceLocation(Record, Idx));
+  E->setFPContractable((bool)Record[Idx++]);
 }
 
 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
@@ -1086,6 +1087,7 @@
   VisitCallExpr(E);
   E->Operator = (OverloadedOperatorKind)Record[Idx++];
   E->Range = Reader.ReadSourceRange(F, Record, Idx);
+  E->setFPContractable((bool)Record[Idx++]);
 }
 
 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {

lib/Serialization/ASTWriterStmt.cpp

diff --git a/lib/Serialization/ASTWriterStmt.cpp b/lib/Serialization/ASTWriterStmt.cpp
index 9ca8130..0337089 100644
--- a/lib/Serialization/ASTWriterStmt.cpp
+++ b/lib/Serialization/ASTWriterStmt.cpp
@@ -536,6 +536,7 @@
   Writer.AddStmt(E->getRHS());
   Record.push_back(E->getOpcode()); // FIXME: stable encoding
   Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+  Record.push_back(E->isFPContractable());
   Code = serialization::EXPR_BINARY_OPERATOR;
 }
 
@@ -1055,6 +1056,7 @@
   VisitCallExpr(E);
   Record.push_back(E->getOperator());
   Writer.AddSourceRange(E->Range, Record);
+  Record.push_back(E->isFPContractable());
   Code = serialization::EXPR_CXX_OPERATOR_CALL;
 }