Enable codegen for long double abs, sin, cos



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42368 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index f4e1cb1..48f4f15 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -418,6 +418,10 @@
   setOperationAction(ISD::UNDEF,     MVT::f80, Expand);
   setOperationAction(ISD::FCOPYSIGN, MVT::f80, Expand);
   setOperationAction(ISD::ConstantFP, MVT::f80, Expand);
+  if (!UnsafeFPMath) {
+    setOperationAction(ISD::FSIN           , MVT::f80  , Expand);
+    setOperationAction(ISD::FCOS           , MVT::f80  , Expand);
+  }
 
   // First set operation action for all vector types to expand. Then we
   // will selectively turn on ones that can be effectively codegen'd.