[PATCH] propagate IR-level fast-math-flags to DAG nodes

[Marcello Maggioni]

Hello, I'm the "Marcello Maggioni" of the original backend flags by the way :P

I'm very interested in what is going on here and I think is about time we have "Node-level" Fast Math flags in the backend! This is a very nice start!


================
Comment at: lib/CodeGen/SelectionDAG/SelectionDAG.cpp:3618
@@ -3630,3 +3617,3 @@
 
-    N = GetBinarySDNode(Opcode, DL, VTs, N1, N2, nuw, nsw, exact);
-
+    N = GetSDNodeWithFlags(Opcode, DL, VTs, Ops, Flags);
+    
----------------
Does it even make sense to have BinarySDNode around at all considering the main function generating these now generates standard SDNodes?

http://reviews.llvm.org/D8900

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