Added option -soft-float to generate SW fp library calls instead of fp instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32393 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/TargetOptions.h

@@ -48,6 +48,12 @@ namespace llvm {
   /// and results are never NaNs or +-Infs.
   extern bool FiniteOnlyFPMathOption;
   extern bool FiniteOnlyFPMath();
+  
+  /// UseSoftFloat - This flag is enabled when the -soft-float flag is specified
+  /// on the command line.  When this flag is on, the code generator will
+  /// generate libcalls to the software floating point library instead of
+  /// target FP instructions.
+  extern bool UseSoftFloat;
 } // End llvm namespace
 
 #endif