[SDAG] Remove -enable-fmf-dag

This is no longer needed as spotted by Sanjay in
https://reviews.llvm.org/D31165.

llvm-svn: 298963

1 files changed, 7 insertions, 12 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 8501f327d53..315d841cf3c 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -84,10 +84,6 @@ LimitFPPrecision("limit-float-precision",
                  cl::location(LimitFloatPrecision),
                  cl::init(0));
 
-static cl::opt<bool>
-EnableFMFInDAG("enable-fmf-dag", cl::init(true), cl::Hidden,
-                cl::desc("Enable fast-math-flags for DAG nodes"));
-
 /// Minimum jump table density for normal functions.
 static cl::opt<unsigned>
 JumpTableDensity("jump-table-density", cl::init(10), cl::Hidden,
@@ -2586,14 +2582,13 @@ void SelectionDAGBuilder::visitBinary(const User &I, unsigned OpCode) {
   Flags.setNoSignedWrap(nsw);
   Flags.setNoUnsignedWrap(nuw);
   Flags.setVectorReduction(vec_redux);
-  if (EnableFMFInDAG) {
-    Flags.setAllowReciprocal(FMF.allowReciprocal());
-    Flags.setAllowContract(FMF.allowContract());
-    Flags.setNoInfs(FMF.noInfs());
-    Flags.setNoNaNs(FMF.noNaNs());
-    Flags.setNoSignedZeros(FMF.noSignedZeros());
-    Flags.setUnsafeAlgebra(FMF.unsafeAlgebra());
-  }
+  Flags.setAllowReciprocal(FMF.allowReciprocal());
+  Flags.setAllowContract(FMF.allowContract());
+  Flags.setNoInfs(FMF.noInfs());
+  Flags.setNoNaNs(FMF.noNaNs());
+  Flags.setNoSignedZeros(FMF.noSignedZeros());
+  Flags.setUnsafeAlgebra(FMF.unsafeAlgebra());
+
   SDValue BinNodeValue = DAG.getNode(OpCode, getCurSDLoc(), Op1.getValueType(),
                                      Op1, Op2, &Flags);
   setValue(&I, BinNodeValue);