[mips] Add the SoftFloat MipsSubtarget feature.

Summary: This will enable the IAS to reject floating point instructions if soft-float is enabled.

Reviewers: dsanders, echristo

Reviewed By: dsanders

Subscribers: jfb, llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D9053

llvm-svn: 236713

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index 7046b7053e8..1aa895d9ca8 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -433,8 +433,10 @@ public:
   bool inMips16Mode() const {
     return STI.getFeatureBits() & Mips::FeatureMips16;
   }
-  // TODO: see how can we get this info.
-  bool abiUsesSoftFloat() const { return false; }
+
+  bool abiUsesSoftFloat() const {
+    return (STI.getFeatureBits() & Mips::FeatureSoftFloat);
+  }
 
   /// Warn if RegIndex is the same as the current AT.
   void warnIfRegIndexIsAT(unsigned RegIndex, SMLoc Loc);