[SPARC] Clean up the support for disabling fsmuld and fmuls instructions.

Summary:
Also enable no-fsmuld for sparcv7 (which doesn't have the
instruction).

The previous code which used a post-processing pass to do this was
unnecessary; disabling the instruction is entirely sufficient.

Reviewers: jacob_hansen, ekedaigle

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35576

llvm-svn: 308661
diff --git a/llvm/lib/Target/Sparc/SparcSubtarget.cpp b/llvm/lib/Target/Sparc/SparcSubtarget.cpp
index daac56a..f299abe 100644
--- a/llvm/lib/Target/Sparc/SparcSubtarget.cpp
+++ b/llvm/lib/Target/Sparc/SparcSubtarget.cpp
@@ -36,14 +36,14 @@
   HasHardQuad = false;
   UsePopc = false;
   UseSoftFloat = false;
+  HasNoFSMULD = false;
+  HasNoFMULS = false;
 
   // Leon features
   HasLeonCasa = false;
   HasUmacSmac = false;
   PerformSDIVReplace = false;
   InsertNOPLoad = false;
-  FixFSMULD = false;
-  ReplaceFMULS = false;
   FixAllFDIVSQRT = false;
   DetectRoundChange = false;