Encapsulate FPOptions and use it consistently

Sema holds the current FPOptions which is adjusted by 'pragma STDC
FP_CONTRACT'.  This then gets propagated into expression nodes as they are
built.

This encapsulates FPOptions so that this propagation happens opaquely rather
than directly with the fp_contractable on/off bit.  This allows controlled
transitioning of fp_contractable to a ternary value (off, on, fast).  It will
also allow adding more fast-math flags later.

This is toward moving fp-contraction=fast from an LLVM TargetOption to a
FastMathFlag in order to fix PR25721.

Differential Revision: https://reviews.llvm.org/D31166

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@298877 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Serialization/ASTWriterStmt.cpp b/lib/Serialization/ASTWriterStmt.cpp
index bade553425..1a2edac658 100644
--- a/lib/Serialization/ASTWriterStmt.cpp
+++ b/lib/Serialization/ASTWriterStmt.cpp
@@ -650,7 +650,7 @@ void ASTStmtWriter::VisitBinaryOperator(BinaryOperator *E) {
   Record.AddStmt(E->getRHS());
   Record.push_back(E->getOpcode()); // FIXME: stable encoding
   Record.AddSourceLocation(E->getOperatorLoc());
-  Record.push_back(E->isFPContractable());
+  Record.push_back(E->getFPFeatures().getInt());
   Code = serialization::EXPR_BINARY_OPERATOR;
 }
 
@@ -1218,7 +1218,7 @@ void ASTStmtWriter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
   VisitCallExpr(E);
   Record.push_back(E->getOperator());
   Record.AddSourceRange(E->Range);
-  Record.push_back(E->isFPContractable());
+  Record.push_back(E->getFPFeatures().getInt());
   Code = serialization::EXPR_CXX_OPERATOR_CALL;
 }