[SDAG] Remove -enable-fmf-dag

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298963 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 8501f327d5317b1dae0f61c356cd677b9533634e..315d841cf3cb8057daab5aeede1172abf3a10213 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/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);

diff --git a/test/CodeGen/X86/dag-fmf-cse.ll b/test/CodeGen/X86/dag-fmf-cse.ll
index ac8c5000aba4c5742ab5c10cce3cb44d7646f2a4..c12c49d0f40b5cfa34d8c833651ae3956df50ee2 100644 (file)
--- a/test/CodeGen/X86/dag-fmf-cse.ll
+++ b/test/CodeGen/X86/dag-fmf-cse.ll
@@ -1,5 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=fma -enable-unsafe-fp-math -enable-fmf-dag=1 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=fma -enable-unsafe-fp-math | FileCheck %s
 
 ; If fast-math-flags are propagated correctly, the mul1 expression
 ; should be recognized as a factor in the last fsub, so we should